This repository was archived by the owner on Jan 25, 2025. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 135
/
Copy patheco_data.go
3400 lines (3399 loc) · 689 KB
/
eco_data.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
package opening
var ecoData = []byte(`eco name pgn uci epd
A00 Amar Gambit 1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4 rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQK2R w KQkq -
A00 Amar Opening 1. Nh3 g1h3 rnbqkbnr/pppppppp/8/8/8/7N/PPPPPPPP/RNBQKB1R b KQkq -
A00 Amar Opening: Gent Gambit 1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 5. O-O fxg3 6. hxg3 g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4 e1g1 f4g3 h2g3 rn1qkbnr/ppp2ppp/8/3p4/8/6PB/PPPPP3/RNBQ1RK1 b kq -
A00 Amar Opening: Paris Gambit 1. Nh3 d5 2. g3 e5 3. f4 g1h3 d7d5 g2g3 e7e5 f2f4 rnbqkbnr/ppp2ppp/8/3pp3/5P2/6PN/PPPPP2P/RNBQKB1R b KQkq -
A00 Amsterdam Attack 1. e3 e5 2. c4 d6 3. Nc3 Nc6 4. b3 Nf6 e2e3 e7e5 c2c4 d7d6 b1c3 b8c6 b2b3 g8f6 r1bqkb1r/ppp2ppp/2np1n2/4p3/2P5/1PN1P3/P2P1PPP/R1BQKBNR w KQkq -
A00 Anderssen's Opening 1. a3 a2a3 rnbqkbnr/pppppppp/8/8/8/P7/1PPPPPPP/RNBQKBNR b KQkq -
A00 Anderssen's Opening: Polish Gambit 1. a3 a5 2. b4 a2a3 a7a5 b2b4 rnbqkbnr/1ppppppp/8/p7/1P6/P7/2PPPPPP/RNBQKBNR b KQkq -
A00 Barnes Opening: Fool's Mate 1. f3 e5 2. g4 Qh4# f2f3 e7e5 g2g4 d8h4 rnb1kbnr/pppp1ppp/8/4p3/6Pq/5P2/PPPPP2P/RNBQKBNR w KQkq -
A00 Barnes Opening: Gedult Gambit 1. f3 d5 2. e4 g6 3. d4 dxe4 4. c3 f2f3 d7d5 e2e4 g7g6 d2d4 d5e4 c2c3 rnbqkbnr/ppp1pp1p/6p1/8/3Pp3/2P2P2/PP4PP/RNBQKBNR b KQkq -
A00 Barnes Opening: Gedult Gambit 1. f3 f5 2. e4 fxe4 3. Nc3 f2f3 f7f5 e2e4 f5e4 b1c3 rnbqkbnr/ppppp1pp/8/8/4p3/2N2P2/PPPP2PP/R1BQKBNR b KQkq -
A00 Barnes Opening: Hammerschlag 1. f3 e5 2. Kf2 f2f3 e7e5 e1f2 rnbqkbnr/pppp1ppp/8/4p3/8/5P2/PPPPPKPP/RNBQ1BNR b kq -
A00 Clemenz Opening 1. h3 h2h3 rnbqkbnr/pppppppp/8/8/8/7P/PPPPPPP1/RNBQKBNR b KQkq -
A00 Clemenz Opening: Spike Lee Gambit 1. h3 h5 2. g4 h2h3 h7h5 g2g4 rnbqkbnr/ppppppp1/8/7p/6P1/7P/PPPPPP2/RNBQKBNR b KQkq -
A00 Crab Opening 1. a4 e5 2. h4 a2a4 e7e5 h2h4 rnbqkbnr/pppp1ppp/8/4p3/P6P/8/1PPPPPP1/RNBQKBNR b KQkq -
A00 Creepy Crawly Formation: Classical Defense 1. h3 d5 2. a3 e5 h2h3 d7d5 a2a3 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/8/P6P/1PPPPPP1/RNBQKBNR w KQkq -
A00 Englund Gambit Declined: Reversed French 1. e3 e5 2. d4 e2e3 e7e5 d2d4 rnbqkbnr/pppp1ppp/8/4p3/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq -
A00 Formation: Cabbage Attack 1. c3 e5 2. a3 d5 3. b3 Nf6 4. Bb2 Nc6 5. a4 Bd6 6. g3 O-O 7. e3 c2c3 e7e5 a2a3 d7d5 b2b3 g8f6 c1b2 b8c6 a3a4 f8d6 g2g3 e8g8 e2e3 r1bq1rk1/ppp2ppp/2nb1n2/3pp3/P7/1PP1P1P1/1B1P1P1P/RN1QKBNR b KQ -
A00 Formation: Hippopotamus Attack 1. a3 e5 2. b3 d5 3. c3 Nf6 4. d3 Nc6 5. e3 Bd6 6. f3 O-O 7. g3 a2a3 e7e5 b2b3 d7d5 c2c3 g8f6 d2d3 b8c6 e2e3 f8d6 f2f3 e8g8 g2g3 r1bq1rk1/ppp2ppp/2nb1n2/3pp3/8/PPPPPPP1/7P/RNBQKBNR b KQ -
A00 Formation: Shy Attack 1. a3 e5 2. g3 d5 3. Bg2 Nf6 4. d3 Nc6 5. Nd2 Bd6 6. e3 O-O 7. h3 a2a3 e7e5 g2g3 d7d5 f1g2 g8f6 d2d3 b8c6 b1d2 f8d6 e2e3 e8g8 h2h3 r1bq1rk1/ppp2ppp/2nb1n2/3pp3/8/P2PP1PP/1PPN1PB1/R1BQK1NR b KQ -
A00 Gedult's Opening 1. f3 f2f3 rnbqkbnr/pppppppp/8/8/8/5P2/PPPPP1PP/RNBQKBNR b KQkq -
A00 Global Opening 1. h3 e5 2. a3 h2h3 e7e5 a2a3 rnbqkbnr/pppp1ppp/8/4p3/8/P6P/1PPPPPP1/RNBQKBNR b KQkq -
A00 Grob Opening 1. g4 g2g4 rnbqkbnr/pppppppp/8/8/6P1/8/PPPPPP1P/RNBQKBNR b KQkq -
A00 Grob Opening: Alessi Gambit 1. g4 f5 g2g4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/6P1/8/PPPPPP1P/RNBQKBNR w KQkq -
A00 Grob Opening: Double Grob 1. g4 g5 g2g4 g7g5 rnbqkbnr/pppppp1p/8/6p1/6P1/8/PPPPPP1P/RNBQKBNR w KQkq -
A00 Grob Opening: Double Grob, Coca-Cola Gambit 1. g4 g5 2. f4 g2g4 g7g5 f2f4 rnbqkbnr/pppppp1p/8/6p1/5PP1/8/PPPPP2P/RNBQKBNR b KQkq -
A00 Grob Opening: Grob Gambit 1. g4 d5 2. Bg2 g2g4 d7d5 f1g2 rnbqkbnr/ppp1pppp/8/3p4/6P1/8/PPPPPPBP/RNBQK1NR b KQkq -
A00 Grob Opening: Grob Gambit Declined 1. g4 d5 2. Bg2 c6 g2g4 d7d5 f1g2 c7c6 rnbqkbnr/pp2pppp/2p5/3p4/6P1/8/PPPPPPBP/RNBQK1NR w KQkq -
A00 Grob Opening: Grob Gambit, Basman Gambit 1. g4 d5 2. Bg2 h5 3. gxh5 g2g4 d7d5 f1g2 h7h5 g4h5 rnbqkbnr/ppp1ppp1/8/3p3P/8/8/PPPPPPBP/RNBQK1NR b KQkq -
A00 Grob Opening: Grob Gambit, Fritz Gambit 1. g4 d5 2. Bg2 Bxg4 3. c4 g2g4 d7d5 f1g2 c8g4 c2c4 rn1qkbnr/ppp1pppp/8/3p4/2P3b1/8/PP1PPPBP/RNBQK1NR b KQkq -
A00 Grob Opening: Grob Gambit, Fritz Gambit, Romford Countergambit 1. g4 d5 2. Bg2 Bxg4 3. c4 d4 4. Bxb7 Nd7 5. Bxa8 Qxa8 g2g4 d7d5 f1g2 c8g4 c2c4 d5d4 g2b7 b8d7 b7a8 d8a8 q3kbnr/p1pnpppp/8/8/2Pp2b1/8/PP1PPP1P/RNBQK1NR w KQk -
A00 Grob Opening: Grob Gambit, Keres Gambit 1. g4 d5 2. Bg2 e5 3. d4 exd4 4. c3 g2g4 d7d5 f1g2 e7e5 d2d4 e5d4 c2c3 rnbqkbnr/ppp2ppp/8/3p4/3p2P1/2P5/PP2PPBP/RNBQK1NR b KQkq -
A00 Grob Opening: Grob Gambit, Richter-Grob Gambit 1. g4 d5 2. Bg2 c6 3. c4 dxc4 4. b3 g2g4 d7d5 f1g2 c7c6 c2c4 d5c4 b2b3 rnbqkbnr/pp2pppp/2p5/8/2p3P1/1P6/P2PPPBP/RNBQK1NR b KQkq -
A00 Grob Opening: Keene Defense 1. g4 d5 2. h3 e5 3. Bg2 c6 g2g4 d7d5 h2h3 e7e5 f1g2 c7c6 rnbqkbnr/pp3ppp/2p5/3pp3/6P1/7P/PPPPPPB1/RNBQK1NR w KQkq -
A00 Grob Opening: Keene Defense, Main Line 1. g4 d5 2. h3 e5 3. Bg2 c6 4. d4 e4 5. c4 Bd6 6. Nc3 Ne7 g2g4 d7d5 h2h3 e7e5 f1g2 c7c6 d2d4 e5e4 c2c4 f8d6 b1c3 g8e7 rnbqk2r/pp2nppp/2pb4/3p4/2PPp1P1/2N4P/PP2PPB1/R1BQK1NR w KQkq -
A00 Grob Opening: London Defense 1. g4 e5 2. h3 Nc6 g2g4 e7e5 h2h3 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/6P1/7P/PPPPPP2/RNBQKBNR w KQkq -
A00 Grob Opening: Romford Countergambit 1. g4 d5 2. Bg2 Bxg4 3. c4 d4 g2g4 d7d5 f1g2 c8g4 c2c4 d5d4 rn1qkbnr/ppp1pppp/8/8/2Pp2b1/8/PP1PPPBP/RNBQK1NR w KQkq -
A00 Grob Opening: Spike Attack 1. g4 d5 2. Bg2 c6 3. g5 g2g4 d7d5 f1g2 c7c6 g4g5 rnbqkbnr/pp2pppp/2p5/3p2P1/8/8/PPPPPPBP/RNBQK1NR b KQkq -
A00 Grob Opening: Spike, Hurst Attack 1. g4 e5 2. Bg2 d5 3. c4 g2g4 e7e5 f1g2 d7d5 c2c4 rnbqkbnr/ppp2ppp/8/3pp3/2P3P1/8/PP1PPPBP/RNBQK1NR b KQkq -
A00 Grob Opening: Zilbermints Gambit 1. g4 d5 2. e4 dxe4 3. Nc3 g2g4 d7d5 e2e4 d5e4 b1c3 rnbqkbnr/ppp1pppp/8/8/4p1P1/2N5/PPPP1P1P/R1BQKBNR b KQkq -
A00 Grob Opening: Zilbermints Gambit, Schiller Defense 1. g4 d5 2. e4 dxe4 3. Nc3 h5 g2g4 d7d5 e2e4 d5e4 b1c3 h7h5 rnbqkbnr/ppp1ppp1/8/7p/4p1P1/2N5/PPPP1P1P/R1BQKBNR w KQkq -
A00 Grob Opening: Zilbermints Gambit, Zilbermints-Hartlaub Gambit 1. g4 d5 2. e4 dxe4 3. Nc3 e5 4. d3 g2g4 d7d5 e2e4 d5e4 b1c3 e7e5 d2d3 rnbqkbnr/ppp2ppp/8/4p3/4p1P1/2NP4/PPP2P1P/R1BQKBNR b KQkq -
A00 Hungarian Opening 1. g3 g2g3 rnbqkbnr/pppppppp/8/8/8/6P1/PPPPPP1P/RNBQKBNR b KQkq -
A00 Hungarian Opening: Asten Gambit 1. g3 Nc6 2. Nc3 d5 3. d4 e5 4. dxe5 d4 5. Ne4 f5 g2g3 b8c6 b1c3 d7d5 d2d4 e7e5 d4e5 d5d4 c3e4 f7f5 r1bqkbnr/ppp3pp/2n5/4Pp2/3pN3/6P1/PPP1PP1P/R1BQKBNR w KQkq f6
A00 Hungarian Opening: Burk Gambit 1. g3 e5 2. a3 d5 3. Nf3 e4 4. Nh4 Be7 5. d3 g2g3 e7e5 a2a3 d7d5 g1f3 e5e4 f3h4 f8e7 d2d3 rnbqk1nr/ppp1bppp/8/3p4/4p2N/P2P2P1/1PP1PP1P/RNBQKB1R b KQkq -
A00 Hungarian Opening: Bücker Gambit 1. g3 d5 2. Bg2 e5 3. b4 g2g3 d7d5 f1g2 e7e5 b2b4 rnbqkbnr/ppp2ppp/8/3pp3/1P6/6P1/P1PPPPBP/RNBQK1NR b KQkq -
A00 Hungarian Opening: Catalan Formation 1. g3 d5 2. Bg2 e6 g2g3 d7d5 f1g2 e7e6 rnbqkbnr/ppp2ppp/4p3/3p4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq -
A00 Hungarian Opening: Dutch Defense 1. g3 f5 g2g3 f7f5 rnbqkbnr/ppppp1pp/8/5p2/8/6P1/PPPPPP1P/RNBQKBNR w KQkq -
A00 Hungarian Opening: Indian Defense 1. g3 Nf6 g2g3 g8f6 rnbqkb1r/pppppppp/5n2/8/8/6P1/PPPPPP1P/RNBQKBNR w KQkq -
A00 Hungarian Opening: Myers Defense 1. g3 g5 g2g3 g7g5 rnbqkbnr/pppppp1p/8/6p1/8/6P1/PPPPPP1P/RNBQKBNR w KQkq -
A00 Hungarian Opening: Pachman Gambit 1. g3 f5 2. e4 fxe4 3. Qh5+ g6 g2g3 f7f5 e2e4 f5e4 d1h5 g7g6 rnbqkbnr/ppppp2p/6p1/7Q/4p3/6P1/PPPP1P1P/RNB1KBNR w KQkq -
A00 Hungarian Opening: Paris Gambit 1. g3 e5 2. Nh3 d5 3. f4 Bxh3 4. Bxh3 exf4 5. O-O g2g3 e7e5 g1h3 d7d5 f2f4 c8h3 f1h3 e5f4 e1g1 rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQ1RK1 b kq -
A00 Hungarian Opening: Reversed Alekhine 1. g3 e5 2. Nf3 g2g3 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq -
A00 Hungarian Opening: Reversed Brooklyn Defense, Brooklyn Benko Gambit 1. g3 e5 2. Nf3 e4 3. Ng1 Nf6 4. b4 g2g3 e7e5 g1f3 e5e4 f3g1 g8f6 b2b4 rnbqkb1r/pppp1ppp/5n2/8/1P2p3/6P1/P1PPPP1P/RNBQKBNR b KQkq -
A00 Hungarian Opening: Reversed Modern Defense 1. g3 d5 2. Bg2 c5 g2g3 d7d5 f1g2 c7c5 rnbqkbnr/pp2pppp/8/2pp4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq -
A00 Hungarian Opening: Reversed Norwegian Defense 1. g3 e5 2. Nf3 e4 3. Nh4 g2g3 e7e5 g1f3 e5e4 f3h4 rnbqkbnr/pppp1ppp/8/8/4p2N/6P1/PPPPPP1P/RNBQKB1R b KQkq -
A00 Hungarian Opening: Sicilian Invitation 1. g3 c5 g2g3 c7c5 rnbqkbnr/pp1ppppp/8/2p5/8/6P1/PPPPPP1P/RNBQKBNR w KQkq -
A00 Hungarian Opening: Slav Formation 1. g3 d5 2. Bg2 c6 g2g3 d7d5 f1g2 c7c6 rnbqkbnr/pp2pppp/2p5/3p4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq -
A00 Hungarian Opening: Symmetrical Variation 1. g3 g6 g2g3 g7g6 rnbqkbnr/pppppp1p/6p1/8/8/6P1/PPPPPP1P/RNBQKBNR w KQkq -
A00 Hungarian Opening: Van Kuijk Gambit 1. g3 h5 2. Nf3 h4 g2g3 h7h5 g1f3 h5h4 rnbqkbnr/ppppppp1/8/8/7p/5NP1/PPPPPP1P/RNBQKB1R w KQkq -
A00 Hungarian Opening: Winterberg Gambit 1. g3 d5 2. Bg2 e5 3. c4 dxc4 4. b3 g2g3 d7d5 f1g2 e7e5 c2c4 d5c4 b2b3 rnbqkbnr/ppp2ppp/8/4p3/2p5/1P4P1/P2PPPBP/RNBQK1NR b KQkq -
A00 Indian Defense: Colle System, King's Indian Variation 1. e3 d6 2. d4 g6 3. Nf3 Bg7 4. Bd3 Nf6 e2e3 d7d6 d2d4 g7g6 g1f3 f8g7 f1d3 g8f6 rnbqk2r/ppp1ppbp/3p1np1/8/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq -
A00 Kádas Opening 1. h4 h2h4 rnbqkbnr/pppppppp/8/8/7P/8/PPPPPPP1/RNBQKBNR b KQkq -
A00 Kádas Opening: Beginner's Trap 1. h4 d5 2. Rh3 h2h4 d7d5 h1h3 rnbqkbnr/ppp1pppp/8/3p4/7P/7R/PPPPPPP1/RNBQKBN1 b Qkq -
A00 Kádas Opening: Kádas Gambit 1. h4 c5 2. b4 h2h4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P5P/8/P1PPPPP1/RNBQKBNR b KQkq -
A00 Kádas Opening: Kádas Gambit 1. h4 d5 2. d4 c5 3. Nf3 cxd4 4. c3 h2h4 d7d5 d2d4 c7c5 g1f3 c5d4 c2c3 rnbqkbnr/pp2pppp/8/3p4/3p3P/2P2N2/PP2PPP1/RNBQKB1R b KQkq -
A00 Kádas Opening: Kádas Gambit 1. h4 e5 2. d4 exd4 3. c3 h2h4 e7e5 d2d4 e5d4 c2c3 rnbqkbnr/pppp1ppp/8/8/3p3P/2P5/PP2PPP1/RNBQKBNR b KQkq -
A00 Kádas Opening: Myers Variation 1. h4 d5 2. d4 c5 3. e4 h2h4 d7d5 d2d4 c7c5 e2e4 rnbqkbnr/pp2pppp/8/2pp4/3PP2P/8/PPP2PP1/RNBQKBNR b KQkq -
A00 Kádas Opening: Schneider Gambit 1. h4 g5 h2h4 g7g5 rnbqkbnr/pppppp1p/8/6p1/7P/8/PPPPPPP1/RNBQKBNR w KQkq -
A00 Kádas Opening: Steinbok Gambit 1. h4 f5 2. e4 fxe4 3. d3 h2h4 f7f5 e2e4 f5e4 d2d3 rnbqkbnr/ppppp1pp/8/8/4p2P/3P4/PPP2PP1/RNBQKBNR b KQkq -
A00 Lasker Simul Special 1. g3 h5 g2g3 h7h5 rnbqkbnr/ppppppp1/8/7p/8/6P1/PPPPPP1P/RNBQKBNR w KQkq -
A00 Mieses Opening 1. d3 d2d3 rnbqkbnr/pppppppp/8/8/8/3P4/PPP1PPPP/RNBQKBNR b KQkq -
A00 Mieses Opening: Myers Spike Attack 1. d3 g6 2. g4 d2d3 g7g6 g2g4 rnbqkbnr/pppppp1p/6p1/8/6P1/3P4/PPP1PP1P/RNBQKBNR b KQkq -
A00 Mieses Opening: Reversed Rat 1. d3 e5 d2d3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPP1PPPP/RNBQKBNR w KQkq -
A00 Polish Opening 1. b4 b2b4 rnbqkbnr/pppppppp/8/8/1P6/8/P1PPPPPP/RNBQKBNR b KQkq -
A00 Polish Opening: Baltic Defense 1. b4 d5 2. Bb2 Bf5 b2b4 d7d5 c1b2 c8f5 rn1qkbnr/ppp1pppp/8/3p1b2/1P6/8/PBPPPPPP/RN1QKBNR w KQkq -
A00 Polish Opening: Birmingham Gambit 1. b4 c5 b2b4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/1P6/8/P1PPPPPP/RNBQKBNR w KQkq -
A00 Polish Opening: Bugayev Advance Variation 1. b4 e5 2. Bb2 f6 3. b5 b2b4 e7e5 c1b2 f7f6 b4b5 rnbqkbnr/pppp2pp/5p2/1P2p3/8/8/PBPPPPPP/RN1QKBNR b KQkq -
A00 Polish Opening: Bugayev Attack 1. b4 e5 2. a3 b2b4 e7e5 a2a3 rnbqkbnr/pppp1ppp/8/4p3/1P6/P7/2PPPPPP/RNBQKBNR b KQkq -
A00 Polish Opening: Czech Defense 1. b4 e5 2. Bb2 d6 b2b4 e7e5 c1b2 d7d6 rnbqkbnr/ppp2ppp/3p4/4p3/1P6/8/PBPPPPPP/RN1QKBNR w KQkq -
A00 Polish Opening: Dutch Defense 1. b4 f5 b2b4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/1P6/8/P1PPPPPP/RNBQKBNR w KQkq -
A00 Polish Opening: German Defense 1. b4 d5 2. Bb2 Qd6 b2b4 d7d5 c1b2 d8d6 rnb1kbnr/ppp1pppp/3q4/3p4/1P6/8/PBPPPPPP/RN1QKBNR w KQkq -
A00 Polish Opening: Grigorian Variation 1. b4 Nc6 b2b4 b8c6 r1bqkbnr/pppppppp/2n5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq -
A00 Polish Opening: Karniewski Variation 1. b4 Nh6 b2b4 g8h6 rnbqkb1r/pppppppp/7n/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq -
A00 Polish Opening: King's Indian Variation 1. b4 Nf6 2. Bb2 g6 b2b4 g8f6 c1b2 g7g6 rnbqkb1r/pppppp1p/5np1/8/1P6/8/PBPPPPPP/RN1QKBNR w KQkq -
A00 Polish Opening: King's Indian Variation, Schiffler Attack 1. b4 Nf6 2. Bb2 g6 3. e4 b2b4 g8f6 c1b2 g7g6 e2e4 rnbqkb1r/pppppp1p/5np1/8/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq -
A00 Polish Opening: Myers Variation 1. b4 d5 2. Bb2 c6 3. a4 b2b4 d7d5 c1b2 c7c6 a2a4 rnbqkbnr/pp2pppp/2p5/3p4/PP6/8/1BPPPPPP/RN1QKBNR b KQkq -
A00 Polish Opening: Orangutan-Diemer Gambit 1. b4 d5 2. Bb2 Qd6 3. a3 e5 4. e4 dxe4 5. f3 b2b4 d7d5 c1b2 d8d6 a2a3 e7e5 e2e4 d5e4 f2f3 rnb1kbnr/ppp2ppp/3q4/4p3/1P2p3/P4P2/1BPP2PP/RN1QKBNR b KQkq -
A00 Polish Opening: Orangutan-Hartlaub Gambit 1. b4 Nf6 2. Bb2 e6 3. a3 c6 4. d3 a5 5. bxa5 d5 6. e4 b2b4 g8f6 c1b2 e7e6 a2a3 c7c6 d2d3 a7a5 b4a5 d7d5 e2e4 rnbqkb1r/1p3ppp/2p1pn2/P2p4/4P3/P2P4/1BP2PPP/RN1QKBNR b KQkq -
A00 Polish Opening: Outflank Variation 1. b4 c6 b2b4 c7c6 rnbqkbnr/pp1ppppp/2p5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq -
A00 Polish Opening: Queen's Indian Variation 1. b4 e6 2. Bb2 Nf6 3. b5 b6 b2b4 e7e6 c1b2 g8f6 b4b5 b7b6 rnbqkb1r/p1pp1ppp/1p2pn2/1P6/8/8/PBPPPPPP/RN1QKBNR w KQkq -
A00 Polish Opening: Queenside Defense 1. b4 e6 2. Bb2 Nf6 3. b5 a6 b2b4 e7e6 c1b2 g8f6 b4b5 a7a6 rnbqkb1r/1ppp1ppp/p3pn2/1P6/8/8/PBPPPPPP/RN1QKBNR w KQkq -
A00 Polish Opening: Rooks Swap Line 1. b4 e6 2. Bb2 Nf6 3. b5 a6 4. a4 axb5 5. axb5 Rxa1 6. Bxa1 b2b4 e7e6 c1b2 g8f6 b4b5 a7a6 a2a4 a6b5 a4b5 a8a1 b2a1 1nbqkb1r/1ppp1ppp/4pn2/1P6/8/8/2PPPPPP/BN1QKBNR b Kk -
A00 Polish Opening: Schiffler-Sokolsky Variation 1. b4 e6 2. Bb2 Nf6 3. b5 d5 4. e3 b2b4 e7e6 c1b2 g8f6 b4b5 d7d5 e2e3 rnbqkb1r/ppp2ppp/4pn2/1P1p4/8/4P3/PBPP1PPP/RN1QKBNR b KQkq -
A00 Polish Opening: Schuehler Gambit 1. b4 c6 2. Bb2 a5 3. b5 cxb5 4. e4 b2b4 c7c6 c1b2 a7a5 b4b5 c6b5 e2e4 rnbqkbnr/1p1ppppp/8/pp6/4P3/8/PBPP1PPP/RN1QKBNR b KQkq -
A00 Polish Opening: Symmetrical Variation 1. b4 b5 b2b4 b7b5 rnbqkbnr/p1pppppp/8/1p6/1P6/8/P1PPPPPP/RNBQKBNR w KQkq -
A00 Polish Opening: Tartakower Gambit 1. b4 e5 2. Bb2 f6 3. e4 b2b4 e7e5 c1b2 f7f6 e2e4 rnbqkbnr/pppp2pp/5p2/4p3/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq -
A00 Polish Opening: Tartakower Gambit, Brinckmann Variation 1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nc6 5. f4 Qe7 6. f5 g6 b2b4 e7e5 c1b2 f7f6 e2e4 f8b4 f1c4 b8c6 f2f4 d8e7 f4f5 g7g6 r1b1k1nr/ppppq2p/2n2pp1/4pP2/1bB1P3/8/PBPP2PP/RN1QK1NR w KQkq -
A00 Polish Opening: Wolferts Gambit 1. b4 e5 2. Bb2 c5 b2b4 e7e5 c1b2 c7c5 rnbqkbnr/pp1p1ppp/8/2p1p3/1P6/8/PBPPPPPP/RN1QKBNR w KQkq -
A00 Saragossa Opening 1. c3 c2c3 rnbqkbnr/pppppppp/8/8/8/2P5/PP1PPPPP/RNBQKBNR b KQkq -
A00 Sodium Attack 1. Na3 b1a3 rnbqkbnr/pppppppp/8/8/8/N7/PPPPPPPP/R1BQKBNR b KQkq -
A00 Sodium Attack: Celadon Variation 1. Na3 e5 2. d3 Bxa3 3. bxa3 d5 4. e3 c5 5. Rb1 b1a3 e7e5 d2d3 f8a3 b2a3 d7d5 e2e3 c7c5 a1b1 rnbqk1nr/pp3ppp/8/2ppp3/8/P2PP3/P1P2PPP/1RBQKBNR b Kkq -
A00 Sodium Attack: Chenoboskion Variation 1. Na3 g6 2. g4 b1a3 g7g6 g2g4 rnbqkbnr/pppppp1p/6p1/8/6P1/N7/PPPPPP1P/R1BQKBNR b KQkq -
A00 Sodium Attack: Durkin Gambit 1. Na3 e5 2. Nc4 Nc6 3. e4 f5 b1a3 e7e5 a3c4 b8c6 e2e4 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/2N1P3/8/PPPP1PPP/R1BQKBNR w KQkq -
A00 Valencia Opening 1. d3 e5 2. Nd2 d2d3 e7e5 b1d2 rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPPNPPPP/R1BQKBNR b KQkq -
A00 Van Geet Opening 1. Nc3 b1c3 rnbqkbnr/pppppppp/8/8/8/2N5/PPPPPPPP/R1BQKBNR b KQkq -
A00 Van Geet Opening: Battambang Variation 1. a3 e5 2. Nc3 a2a3 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/8/P1N5/1PPPPPPP/R1BQKBNR b KQkq -
A00 Van Geet Opening: Billockus-Johansen Gambit 1. Nc3 e5 2. Nf3 Bc5 b1c3 e7e5 g1f3 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq -
A00 Van Geet Opening: Caro-Kann Variation, St. Patrick's Attack 1. Nc3 d5 2. e4 c6 3. h3 b1c3 d7d5 e2e4 c7c6 h2h3 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N4P/PPPP1PP1/R1BQKBNR b KQkq -
A00 Van Geet Opening: Damhaug Gambit 1. Nc3 d5 2. f4 e5 b1c3 d7d5 f2f4 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/5P2/2N5/PPPPP1PP/R1BQKBNR w KQkq -
A00 Van Geet Opening: Dougherty Gambit 1. Nc3 d5 2. e4 dxe4 3. f3 b1c3 d7d5 e2e4 d5e4 f2f3 rnbqkbnr/ppp1pppp/8/8/4p3/2N2P2/PPPP2PP/R1BQKBNR b KQkq -
A00 Van Geet Opening: Dunst-Perrenet Gambit 1. Nc3 d5 2. e4 dxe4 3. d3 b1c3 d7d5 e2e4 d5e4 d2d3 rnbqkbnr/ppp1pppp/8/8/4p3/2NP4/PPP2PPP/R1BQKBNR b KQkq -
A00 Van Geet Opening: Düsseldorf Gambit 1. Nc3 c5 2. b4 b1c3 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P6/2N5/P1PPPPPP/R1BQKBNR b KQkq -
A00 Van Geet Opening: Gladbacher Gambit 1. Nc3 e5 2. b3 d5 3. e4 dxe4 4. d3 b1c3 e7e5 b2b3 d7d5 e2e4 d5e4 d2d3 rnbqkbnr/ppp2ppp/8/4p3/4p3/1PNP4/P1P2PPP/R1BQKBNR b KQkq -
A00 Van Geet Opening: Hector Gambit 1. Nc3 d5 2. e4 dxe4 3. Bc4 b1c3 d7d5 e2e4 d5e4 f1c4 rnbqkbnr/ppp1pppp/8/8/2B1p3/2N5/PPPP1PPP/R1BQK1NR b KQkq -
A00 Van Geet Opening: Hergert Gambit 1. Nc3 d6 2. f4 e5 3. fxe5 Nc6 b1c3 d7d6 f2f4 e7e5 f4e5 b8c6 r1bqkbnr/ppp2ppp/2np4/4P3/8/2N5/PPPPP1PP/R1BQKBNR w KQkq -
A00 Van Geet Opening: Hulsemann Gambit 1. Nc3 e5 2. e3 d5 3. Qh5 Be6 b1c3 e7e5 e2e3 d7d5 d1h5 c8e6 rn1qkbnr/ppp2ppp/4b3/3pp2Q/8/2N1P3/PPPP1PPP/R1B1KBNR w KQkq -
A00 Van Geet Opening: Jendrossek Gambit 1. Nc3 d5 2. f4 d4 3. Ne4 f5 4. Nf2 Nf6 5. Nf3 c5 6. b4 b1c3 d7d5 f2f4 d5d4 c3e4 f7f5 e4f2 g8f6 g1f3 c7c5 b2b4 rnbqkb1r/pp2p1pp/5n2/2p2p2/1P1p1P2/5N2/P1PPPNPP/R1BQKB1R b KQkq -
A00 Van Geet Opening: Kluever Gambit 1. Nc3 f5 2. e4 fxe4 3. d3 b1c3 f7f5 e2e4 f5e4 d2d3 rnbqkbnr/ppppp1pp/8/8/4p3/2NP4/PPP2PPP/R1BQKBNR b KQkq -
A00 Van Geet Opening: Laroche Gambit 1. Nc3 b5 b1c3 b7b5 rnbqkbnr/p1pppppp/8/1p6/8/2N5/PPPPPPPP/R1BQKBNR w KQkq -
A00 Van Geet Opening: Liebig Gambit 1. Nc3 e5 2. e3 d5 3. Qh5 Nf6 b1c3 e7e5 e2e3 d7d5 d1h5 g8f6 rnbqkb1r/ppp2ppp/5n2/3pp2Q/8/2N1P3/PPPP1PPP/R1B1KBNR w KQkq -
A00 Van Geet Opening: Melleby Gambit 1. Nc3 d5 2. f4 d4 3. Ne4 c5 b1c3 d7d5 f2f4 d5d4 c3e4 c7c5 rnbqkbnr/pp2pppp/8/2p5/3pNP2/8/PPPPP1PP/R1BQKBNR w KQkq -
A00 Van Geet Opening: Myers Attack 1. Nc3 g6 2. h4 b1c3 g7g6 h2h4 rnbqkbnr/pppppp1p/6p1/8/7P/2N5/PPPPPPP1/R1BQKBNR b KQkq -
A00 Van Geet Opening: Napoleon Attack 1. Nc3 e5 2. Nf3 Nc6 3. d4 b1c3 e7e5 g1f3 b8c6 d2d4 r1bqkbnr/pppp1ppp/2n5/4p3/3P4/2N2N2/PPP1PPPP/R1BQKB1R b KQkq -
A00 Van Geet Opening: Novosibirsk Variation 1. Nc3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qh4 b1c3 c7c5 d2d4 c5d4 d1d4 b8c6 d4h4 r1bqkbnr/pp1ppppp/2n5/8/7Q/2N5/PPP1PPPP/R1B1KBNR b KQkq -
A00 Van Geet Opening: Pfeiffer Gambit 1. Nc3 d5 2. f4 d4 3. Ne4 e5 b1c3 d7d5 f2f4 d5d4 c3e4 e7e5 rnbqkbnr/ppp2ppp/8/4p3/3pNP2/8/PPPPP1PP/R1BQKBNR w KQkq -
A00 Van Geet Opening: Pfeiffer Gambit, Sleipnir Countergambit 1. Nc3 d5 2. f4 d4 3. Ne4 e5 4. Nf3 b1c3 d7d5 f2f4 d5d4 c3e4 e7e5 g1f3 rnbqkbnr/ppp2ppp/8/4p3/3pNP2/5N2/PPPPP1PP/R1BQKB1R b KQkq -
A00 Van Geet Opening: Reversed Nimzowitsch 1. Nc3 e5 b1c3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/2N5/PPPPPPPP/R1BQKBNR w KQkq -
A00 Van Geet Opening: Reversed Scandinavian 1. Nc3 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qa4 b1c3 e7e5 d2d4 e5d4 d1d4 b8c6 d4a4 r1bqkbnr/pppp1ppp/2n5/8/Q7/2N5/PPP1PPPP/R1B1KBNR b KQkq -
A00 Van Geet Opening: Sicilian Two Knights 1. Nc3 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 b1c3 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 r1bqkbnr/pp1ppppp/2n5/8/3N4/2N5/PPP1PPPP/R1BQKB1R b KQkq -
A00 Van Geet Opening: Sleipnir Gambit 1. Nc3 d5 2. e3 e5 3. d4 Bb4 b1c3 d7d5 e2e3 e7e5 d2d4 f8b4 rnbqk1nr/ppp2ppp/8/3pp3/1b1P4/2N1P3/PPP2PPP/R1BQKBNR w KQkq -
A00 Van Geet Opening: Twyble Attack 1. Nc3 c5 2. Rb1 b1c3 c7c5 a1b1 rnbqkbnr/pp1ppppp/8/2p5/8/2N5/PPPPPPPP/1RBQKBNR b Kkq -
A00 Van Geet Opening: Tübingen Gambit 1. Nc3 Nf6 2. g4 b1c3 g8f6 g2g4 rnbqkb1r/pppppppp/5n2/8/6P1/2N5/PPPPPP1P/R1BQKBNR b KQkq -
A00 Van Geet Opening: Venezolana Variation 1. Nc3 d5 2. d3 Nf6 3. g3 b1c3 d7d5 d2d3 g8f6 g2g3 rnbqkb1r/ppp1pppp/5n2/3p4/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq -
A00 Van Geet Opening: Warsteiner Gambit 1. Nc3 d5 2. f4 g5 b1c3 d7d5 f2f4 g7g5 rnbqkbnr/ppp1pp1p/8/3p2p1/5P2/2N5/PPPPP1PP/R1BQKBNR w KQkq -
A00 Van't Kruijs Opening 1. e3 e2e3 rnbqkbnr/pppppppp/8/8/8/4P3/PPPP1PPP/RNBQKBNR b KQkq -
A00 Van't Kruijs Opening: Bouncing Bishop Variation 1. e3 e5 2. Bc4 b5 3. Bb3 e2e3 e7e5 f1c4 b7b5 c4b3 rnbqkbnr/p1pp1ppp/8/1p2p3/8/1B2P3/PPPP1PPP/RNBQK1NR b KQkq -
A00 Van't Kruijs Opening: Keoni-Hiva Gambit Delayed 1. e3 d5 2. Nc3 Nf6 3. a3 e5 4. f4 exf4 5. Nf3 e2e3 d7d5 b1c3 g8f6 a2a3 e7e5 f2f4 e5f4 g1f3 rnbqkb1r/ppp2ppp/5n2/3p4/5p2/P1N1PN2/1PPP2PP/R1BQKB1R b KQkq -
A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Akahi Variation 1. e3 e5 2. Nc3 Nf6 3. f4 exf4 4. Nf3 e2e3 e7e5 b1c3 g8f6 f2f4 e5f4 g1f3 rnbqkb1r/pppp1ppp/5n2/8/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq -
A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Alua Variation 1. e3 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 e2e3 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 r1bqkbnr/pppp1ppp/2n5/8/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq -
A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Ekolu Variation 1. e3 e5 2. Nc3 d5 3. f4 exf4 4. Nf3 e2e3 e7e5 b1c3 d7d5 f2f4 e5f4 g1f3 rnbqkbnr/ppp2ppp/8/3p4/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq -
A00 Venezolana Opening 1. d3 c5 2. Nc3 Nc6 3. g3 d2d3 c7c5 b1c3 b8c6 g2g3 r1bqkbnr/pp1ppppp/2n5/2p5/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq -
A00 Ware Opening 1. a4 a2a4 rnbqkbnr/pppppppp/8/8/P7/8/1PPPPPPP/RNBQKBNR b KQkq -
A00 Ware Opening: Cologne Gambit 1. a4 b6 2. d4 d5 3. Nc3 Nd7 a2a4 b7b6 d2d4 d7d5 b1c3 b8d7 r1bqkbnr/p1pnpppp/1p6/3p4/P2P4/2N5/1PP1PPPP/R1BQKBNR w KQkq -
A00 Ware Opening: Meadow Hay Trap 1. a4 e5 2. Ra3 a2a4 e7e5 a1a3 rnbqkbnr/pppp1ppp/8/4p3/P7/R7/1PPPPPPP/1NBQKBNR b Kkq -
A00 Ware Opening: Ware Gambit 1. a4 e5 2. a5 d5 3. e3 f5 4. a6 a2a4 e7e5 a4a5 d7d5 e2e3 f7f5 a5a6 rnbqkbnr/ppp3pp/P7/3ppp2/8/4P3/1PPP1PPP/RNBQKBNR b KQkq -
A00 Ware Opening: Wing Gambit 1. a4 b5 2. axb5 Bb7 a2a4 b7b5 a4b5 c8b7 rn1qkbnr/pbpppppp/8/1P6/8/8/1PPPPPPP/RNBQKBNR w KQkq -
A00 Zukertort Opening: Reversed Mexican Defense 1. Nc3 d5 2. Nf3 b1c3 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/8/2N2N2/PPPPPPPP/R1BQKB1R b KQkq -
A01 Nimzo-Larsen Attack 1. b3 b2b3 rnbqkbnr/pppppppp/8/8/8/1P6/P1PPPPPP/RNBQKBNR b KQkq -
A01 Nimzo-Larsen Attack: Classical Variation 1. b3 d5 b2b3 d7d5 rnbqkbnr/ppp1pppp/8/3p4/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -
A01 Nimzo-Larsen Attack: Dutch Variation 1. b3 f5 b2b3 f7f5 rnbqkbnr/ppppp1pp/8/5p2/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -
A01 Nimzo-Larsen Attack: English Variation 1. b3 c5 b2b3 c7c5 rnbqkbnr/pp1ppppp/8/2p5/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -
A01 Nimzo-Larsen Attack: Graz Attack 1. b3 d5 2. Ba3 b2b3 d7d5 c1a3 rnbqkbnr/ppp1pppp/8/3p4/8/BP6/P1PPPPPP/RN1QKBNR b KQkq -
A01 Nimzo-Larsen Attack: Indian Variation 1. b3 Nf6 b2b3 g8f6 rnbqkb1r/pppppppp/5n2/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -
A01 Nimzo-Larsen Attack: Modern Variation 1. b3 e5 b2b3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -
A01 Nimzo-Larsen Attack: Modern Variation 1. b3 e5 2. Bb2 Nc6 b2b3 e7e5 c1b2 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/8/1P6/PBPPPPPP/RN1QKBNR w KQkq -
A01 Nimzo-Larsen Attack: Modern Variation 1. b3 e5 2. Bb2 Nc6 3. e3 b2b3 e7e5 c1b2 b8c6 e2e3 r1bqkbnr/pppp1ppp/2n5/4p3/8/1P2P3/PBPP1PPP/RN1QKBNR b KQkq -
A01 Nimzo-Larsen Attack: Pachman Gambit 1. b3 e5 2. Bb2 Nc6 3. f4 b2b3 e7e5 c1b2 b8c6 f2f4 r1bqkbnr/pppp1ppp/2n5/4p3/5P2/1P6/PBPPP1PP/RN1QKBNR b KQkq -
A01 Nimzo-Larsen Attack: Polish Variation 1. b3 b5 b2b3 b7b5 rnbqkbnr/p1pppppp/8/1p6/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -
A01 Nimzo-Larsen Attack: Ringelbach Gambit 1. b3 f5 2. Bb2 e6 3. e4 b2b3 f7f5 c1b2 e7e6 e2e4 rnbqkbnr/pppp2pp/4p3/5p2/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq -
A01 Nimzo-Larsen Attack: Spike Variation 1. b3 Nf6 2. Bb2 g6 3. g4 b2b3 g8f6 c1b2 g7g6 g2g4 rnbqkb1r/pppppp1p/5np1/8/6P1/1P6/PBPPPP1P/RN1QKBNR b KQkq -
A01 Nimzo-Larsen Attack: Symmetrical Variation 1. b3 b6 b2b3 b7b6 rnbqkbnr/p1pppppp/1p6/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -
A02 Bird Opening 1. f4 f2f4 rnbqkbnr/pppppppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq -
A02 Bird Opening 1. f4 Nf6 f2f4 g8f6 rnbqkb1r/pppppppp/5n2/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -
A02 Bird Opening: Batavo-Polish Attack 1. f4 Nf6 2. Nf3 g6 3. b4 f2f4 g8f6 g1f3 g7g6 b2b4 rnbqkb1r/pppppp1p/5np1/8/1P3P2/5N2/P1PPP1PP/RNBQKB1R b KQkq -
A02 Bird Opening: From's Gambit 1. f4 e5 f2f4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -
A02 Bird Opening: From's Gambit, Bahr Gambit 1. f4 e5 2. Nc3 f2f4 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/5P2/2N5/PPPPP1PP/R1BQKBNR b KQkq -
A02 Bird Opening: From's Gambit, Langheld Gambit 1. f4 e5 2. fxe5 d6 3. exd6 Nf6 f2f4 e7e5 f4e5 d7d6 e5d6 g8f6 rnbqkb1r/ppp2ppp/3P1n2/8/8/8/PPPPP1PP/RNBQKBNR w KQkq -
A02 Bird Opening: From's Gambit, Lasker Variation 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5 f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g7g5 rnbqk1nr/ppp2p1p/3b4/6p1/8/5N2/PPPPP1PP/RNBQKB1R w KQkq -
A02 Bird Opening: From's Gambit, Lipke Variation 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nh6 5. d4 f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g8h6 d2d4 rnbqk2r/ppp2ppp/3b3n/8/3P4/5N2/PPP1P1PP/RNBQKB1R b KQkq -
A02 Bird Opening: Hobbs Gambit 1. f4 g5 f2f4 g7g5 rnbqkbnr/pppppp1p/8/6p1/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -
A02 Bird Opening: Hobbs-Zilbermints Gambit 1. f4 h6 2. Nf3 g5 f2f4 h7h6 g1f3 g7g5 rnbqkbnr/pppppp2/7p/6p1/5P2/5N2/PPPPP1PP/RNBQKB1R w KQkq -
A02 Bird Opening: Horsefly Defense 1. f4 Nh6 f2f4 g8h6 rnbqkb1r/pppppppp/7n/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -
A02 Bird Opening: Lasker Gambit 1. f4 e5 2. fxe5 f6 f2f4 e7e5 f4e5 f7f6 rnbqkbnr/pppp2pp/5p2/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq -
A02 Bird Opening: Mujannah 1. f4 Nf6 2. c4 f2f4 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq -
A02 Bird Opening: Myers Defense 1. f4 b5 f2f4 b7b5 rnbqkbnr/p1pppppp/8/1p6/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -
A02 Bird Opening: Platz Gambit 1. f4 e5 2. fxe5 Ne7 f2f4 e7e5 f4e5 g8e7 rnbqkb1r/ppppnppp/8/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq -
A02 Bird Opening: Schlechter Gambit 1. f4 e5 2. fxe5 Nc6 f2f4 e7e5 f4e5 b8c6 r1bqkbnr/pppp1ppp/2n5/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq -
A02 Bird Opening: Siegener Gambit 1. f4 e5 2. d4 exd4 3. Nf3 c5 4. c3 f2f4 e7e5 d2d4 e5d4 g1f3 c7c5 c2c3 rnbqkbnr/pp1p1ppp/8/2p5/3p1P2/2P2N2/PP2P1PP/RNBQKB1R b KQkq -
A02 Bird Opening: Swiss Gambit 1. f4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4 f2f4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/8/4pPP1/2N5/PPPP3P/R1BQKBNR b KQkq -
A02 Bird Opening: Wagner-Zwitersch Gambit 1. f4 f5 2. e4 f2f4 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/4PP2/8/PPPP2PP/RNBQKBNR b KQkq -
A02 System: Double Duck Formation 1. f4 f5 2. d4 d5 f2f4 f7f5 d2d4 d7d5 rnbqkbnr/ppp1p1pp/8/3p1p2/3P1P2/8/PPP1P1PP/RNBQKBNR w KQkq -
A03 Bird Opening: Dutch Variation 1. f4 d5 f2f4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -
A03 Bird Opening: Dutch Variation, Dudweiler Gambit 1. f4 d5 2. g4 f2f4 d7d5 g2g4 rnbqkbnr/ppp1pppp/8/3p4/5PP1/8/PPPPP2P/RNBQKBNR b KQkq -
A03 Bird Opening: Lasker Variation 1. f4 d5 2. Nf3 Nf6 3. e3 c5 f2f4 d7d5 g1f3 g8f6 e2e3 c7c5 rnbqkb1r/pp2pppp/5n2/2pp4/5P2/4PN2/PPPP2PP/RNBQKB1R w KQkq -
A03 Bird Opening: Sturm Gambit 1. f4 d5 2. c4 f2f4 d7d5 c2c4 rnbqkbnr/ppp1pppp/8/3p4/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq -
A03 Bird Opening: Thomas Gambit 1. f4 d5 2. b3 Nf6 3. Bb2 d4 4. Nf3 c5 5. e3 f2f4 d7d5 b2b3 g8f6 c1b2 d5d4 g1f3 c7c5 e2e3 rnbqkb1r/pp2pppp/5n2/2p5/3p1P2/1P2PN2/PBPP2PP/RN1QKB1R b KQkq -
A03 Bird Opening: Williams Gambit 1. f4 d5 2. e4 f2f4 d7d5 e2e4 rnbqkbnr/ppp1pppp/8/3p4/4PP2/8/PPPP2PP/RNBQKBNR b KQkq -
A03 Bird Opening: Williams Gambit 1. f4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Qe2 f2f4 d7d5 e2e4 d5e4 b1c3 g8f6 d1e2 rnbqkb1r/ppp1pppp/5n2/8/4pP2/2N5/PPPPQ1PP/R1B1KBNR b KQkq -
A03 Bird Opening: Williams-Zilbermints Gambit 1. f4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Nge2 f2f4 d7d5 e2e4 d5e4 b1c3 g8f6 g1e2 rnbqkb1r/ppp1pppp/5n2/8/4pP2/2N5/PPPPN1PP/R1BQKB1R b KQkq -
A04 Colle System: Rhamphorhynchus Variation 1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. dxc5 Qa5+ g1f3 c7c5 e2e3 g7g6 d2d4 f8g7 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/8/4PN2/PPP2PPP/RNBQKB1R w KQkq -
A04 Modern Defense: Semi-Averbakh Variation, Polish Variation 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qb6 g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8b6 rnb1k1nr/pp1pppbp/1q4p1/2p5/2PPP3/5N2/PP3PPP/RNBQKB1R w KQkq -
A04 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qa5+ g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/2PPP3/5N2/PP3PPP/RNBQKB1R w KQkq -
A04 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted 1. Nf3 g6 2. d4 Bg7 3. e4 d6 4. c4 c5 5. dxc5 Qa5+ g1f3 g7g6 d2d4 f8g7 e2e4 d7d6 c2c4 c7c5 d4c5 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/5N2/PP3PPP/RNBQKB1R w KQkq -
A04 Zukertort Opening 1. Nf3 g1f3 rnbqkbnr/pppppppp/8/8/8/5N2/PPPPPPPP/RNBQKB1R b KQkq -
A04 Zukertort Opening: Arctic Defense 1. Nf3 f6 g1f3 f7f6 rnbqkbnr/ppppp1pp/5p2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Arctic Defense, Drunken Knight Variation 1. Nf3 f6 2. e4 Nh6 3. d4 Nf7 g1f3 f7f6 e2e4 g8h6 d2d4 h6f7 rnbqkb1r/pppppnpp/5p2/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Basman Defense 1. Nf3 h6 g1f3 h7h6 rnbqkbnr/ppppppp1/7p/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Black Mustang Defense 1. Nf3 Nc6 g1f3 b8c6 r1bqkbnr/pppppppp/2n5/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Drunken Cavalry Variation 1. Nf3 Na6 2. e4 Nh6 g1f3 b8a6 e2e4 g8h6 r1bqkb1r/pppppppp/n6n/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Dutch Variation 1. Nf3 f5 g1f3 f7f5 rnbqkbnr/ppppp1pp/8/5p2/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Herrstrom Gambit 1. Nf3 g5 g1f3 g7g5 rnbqkbnr/pppppp1p/8/6p1/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Kingside Fianchetto 1. Nf3 g6 g1f3 g7g6 rnbqkbnr/pppppp1p/6p1/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Lisitsyn Gambit 1. Nf3 f5 2. e4 g1f3 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -
A04 Zukertort Opening: Lisitsyn Gambit Deferred 1. Nf3 f5 2. d3 Nf6 3. e4 g1f3 f7f5 d2d3 g8f6 e2e4 rnbqkb1r/ppppp1pp/5n2/5p2/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq -
A04 Zukertort Opening: Pirc Invitation 1. Nf3 d6 g1f3 d7d6 rnbqkbnr/ppp1pppp/3p4/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Polish Defense 1. Nf3 b5 g1f3 b7b5 rnbqkbnr/p1pppppp/8/1p6/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Queen's Gambit Invitation 1. Nf3 e6 g1f3 e7e6 rnbqkbnr/pppp1ppp/4p3/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Queenside Fianchetto Variation 1. Nf3 b6 g1f3 b7b6 rnbqkbnr/p1pppppp/1p6/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Ross Gambit 1. Nf3 e5 g1f3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Shabalov Gambit 1. Nf3 e6 2. c4 a6 3. Nc3 c5 4. g3 b5 g1f3 e7e6 c2c4 a7a6 b1c3 c7c5 g2g3 b7b5 rnbqkbnr/3p1ppp/p3p3/1pp5/2P5/2N2NP1/PP1PPP1P/R1BQKB1R w KQkq -
A04 Zukertort Opening: Sicilian Invitation 1. Nf3 c5 g1f3 c7c5 rnbqkbnr/pp1ppppp/8/2p5/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Slav Invitation 1. Nf3 c6 g1f3 c7c6 rnbqkbnr/pp1ppppp/2p5/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Speelsmet Gambit 1. Nf3 c5 2. d4 cxd4 3. e3 g1f3 c7c5 d2d4 c5d4 e2e3 rnbqkbnr/pp1ppppp/8/8/3p4/4PN2/PPP2PPP/RNBQKB1R b KQkq -
A04 Zukertort Opening: St. George Defense 1. Nf3 a6 g1f3 a7a6 rnbqkbnr/1ppppppp/p7/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: The Walrus 1. Nf3 e5 2. Nxe5 Nc6 3. Nxc6 dxc6 g1f3 e7e5 f3e5 b8c6 e5c6 d7c6 r1bqkbnr/ppp2ppp/2p5/8/8/8/PPPPPPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Vos Gambit 1. Nf3 d6 2. d4 e5 g1f3 d7d6 d2d4 e7e5 rnbqkbnr/ppp2ppp/3p4/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Wade Defense 1. Nf3 d6 2. e4 Bg4 g1f3 d7d6 e2e4 c8g4 rn1qkbnr/ppp1pppp/3p4/8/4P1b1/5N2/PPPP1PPP/RNBQKB1R w KQkq -
A04 Zukertort Opening: Ware Defense 1. Nf3 a5 g1f3 a7a5 rnbqkbnr/1ppppppp/8/p7/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A05 King's Indian Attack 1. Nf3 Nf6 2. g3 d5 g1f3 g8f6 g2g3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -
A05 King's Indian Attack: Smyslov Variation 1. Nf3 Nf6 2. g3 g6 3. b4 g1f3 g8f6 g2g3 g7g6 b2b4 rnbqkb1r/pppppp1p/5np1/8/1P6/5NP1/P1PPPP1P/RNBQKB1R b KQkq -
A05 King's Indian Attack: Spassky Variation 1. Nf3 Nf6 2. g3 b5 g1f3 g8f6 g2g3 b7b5 rnbqkb1r/p1pppppp/5n2/1p6/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -
A05 King's Indian Attack: Symmetrical Defense 1. Nf3 Nf6 2. g3 g6 g1f3 g8f6 g2g3 g7g6 rnbqkb1r/pppppp1p/5np1/8/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -
A05 King's Indian Attack: Wahls Defense 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d5 g1f3 g8f6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 d2d3 d7d5 rnbq1rk1/ppp1ppbp/5np1/3p4/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w - -
A05 Polish Opening: Zukertort System 1. Nf3 Nf6 2. b4 g1f3 g8f6 b2b4 rnbqkb1r/pppppppp/5n2/8/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq -
A05 Zukertort Opening 1. Nf3 Nf6 g1f3 g8f6 rnbqkb1r/pppppppp/5n2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A05 Zukertort Opening 1. Nf3 Nf6 2. Nc3 Nc6 g1f3 g8f6 b1c3 b8c6 r1bqkb1r/pppppppp/2n2n2/8/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq -
A05 Zukertort Opening: Double Fianchetto Attack 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O g1f3 g8f6 g2g3 g7g6 b2b3 f8g7 c1b2 e8g8 f1g2 d7d6 e1g1 rnbq1rk1/ppp1ppbp/3p1np1/8/8/1P3NP1/PBPPPPBP/RN1Q1RK1 b - -
A05 Zukertort Opening: Lemberger Gambit 1. Nf3 Nf6 2. e4 g1f3 g8f6 e2e4 rnbqkb1r/pppppppp/5n2/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -
A05 Zukertort Opening: Myers Polish Attack 1. Nf3 Nf6 2. a4 g6 3. b4 g1f3 g8f6 a2a4 g7g6 b2b4 rnbqkb1r/pppppp1p/5np1/8/PP6/5N2/2PPPPPP/RNBQKB1R b KQkq -
A05 Zukertort Opening: Nimzo-Larsen Variation 1. Nf3 Nf6 2. b3 g1f3 g8f6 b2b3 rnbqkb1r/pppppppp/5n2/8/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq -
A05 Zukertort Opening: Quiet System 1. Nf3 Nf6 2. e3 g1f3 g8f6 e2e3 rnbqkb1r/pppppppp/5n2/8/8/4PN2/PPPP1PPP/RNBQKB1R b KQkq -
A06 Nimzo-Larsen Attack: Classical Variation 1. Nf3 d5 2. b3 g1f3 d7d5 b2b3 rnbqkbnr/ppp1pppp/8/3p4/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq -
A06 Nimzo-Larsen Attack: Norfolk Gambit 1. Nf3 d5 2. b3 c5 3. e4 g1f3 d7d5 b2b3 c7c5 e2e4 rnbqkbnr/pp2pppp/8/2pp4/4P3/1P3N2/P1PP1PPP/RNBQKB1R b KQkq -
A06 Nimzo-Larsen Attack: Norfolk Gambit 1. Nf3 d5 2. b3 Nf6 3. Bb2 c5 4. e4 g1f3 d7d5 b2b3 g8f6 c1b2 c7c5 e2e4 rnbqkb1r/pp2pppp/5n2/2pp4/4P3/1P3N2/PBPP1PPP/RN1QKB1R b KQkq -
A06 Zukertort Opening 1. Nf3 d5 g1f3 d7d5 rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -
A06 Zukertort Opening: Ampel Variation 1. Nf3 d5 2. Rg1 g1f3 d7d5 h1g1 rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKBR1 b Qkq -
A06 Zukertort Opening: Old Indian Attack 1. Nf3 d5 2. d3 g1f3 d7d5 d2d3 rnbqkbnr/ppp1pppp/8/3p4/8/3P1N2/PPP1PPPP/RNBQKB1R b KQkq -
A06 Zukertort Opening: Pachman Gambit 1. Nf3 d5 2. e3 c5 3. c4 dxc4 4. b3 g1f3 d7d5 e2e3 c7c5 c2c4 d5c4 b2b3 rnbqkbnr/pp2pppp/8/2p5/2p5/1P2PN2/P2P1PPP/RNBQKB1R b KQkq -
A06 Zukertort Opening: Regina-Nu Gambit 1. Nf3 d5 2. b3 c5 3. c4 dxc4 4. Nc3 g1f3 d7d5 b2b3 c7c5 c2c4 d5c4 b1c3 rnbqkbnr/pp2pppp/8/2p5/2p5/1PN2N2/P2PPPPP/R1BQKB1R b KQkq -
A06 Zukertort Opening: Santasiere's Folly 1. b4 d5 2. Nf3 b2b4 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq -
A06 Zukertort Opening: Tennison Gambit 1. e4 d5 2. Nf3 e2e4 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -
A06 Zukertort Opening: The Potato 1. Nf3 d5 2. a4 g1f3 d7d5 a2a4 rnbqkbnr/ppp1pppp/8/3p4/P7/5N2/1PPPPPPP/RNBQKB1R b KQkq -
A07 English Opening: Anglo-Indian Defense, Grünfeld Formation 1. g3 d5 2. Nf3 g6 3. c4 Nf6 g2g3 d7d5 g1f3 g7g6 c2c4 g8f6 rnbqkb1r/ppp1pp1p/5np1/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq -
A07 Hungarian Opening: Wiedenhagen-Beta Gambit 1. g3 d5 2. Nf3 g5 g2g3 d7d5 g1f3 g7g5 rnbqkbnr/ppp1pp1p/8/3p2p1/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -
A07 King's Indian Attack 1. Nf3 d5 2. g3 g1f3 d7d5 g2g3 rnbqkbnr/ppp1pppp/8/3p4/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq -
A07 King's Indian Attack: Double Fianchetto 1. Nf3 d5 2. g3 g6 g1f3 d7d5 g2g3 g7g6 rnbqkbnr/ppp1pp1p/6p1/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -
A07 King's Indian Attack: Keres Variation 1. Nf3 d5 2. g3 Bg4 g1f3 d7d5 g2g3 c8g4 rn1qkbnr/ppp1pppp/8/3p4/6b1/5NP1/PPPPPP1P/RNBQKB1R w KQkq -
A07 King's Indian Attack: Keres Variation 1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 g1f3 d7d5 g2g3 c8g4 f1g2 b8d7 r2qkbnr/pppnpppp/8/3p4/6b1/5NP1/PPPPPPBP/RNBQK2R w KQkq -
A07 King's Indian Attack: Omega-Delta Gambit 1. Nf3 d5 2. g3 e5 g1f3 d7d5 g2g3 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -
A07 King's Indian Attack: Pachman System 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Ne7 g1f3 d7d5 g2g3 g7g6 f1g2 f8g7 e1g1 e7e5 d2d3 g8e7 rnbqk2r/ppp1npbp/6p1/3pp3/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -
A07 King's Indian Attack: Sicilian Variation 1. Nf3 d5 2. g3 c5 g1f3 d7d5 g2g3 c7c5 rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -
A07 King's Indian Attack: Yugoslav Variation 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bg4 g1f3 g8f6 g2g3 d7d5 f1g2 c7c6 e1g1 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/6b1/5NP1/PPPPPPBP/RNBQ1RK1 w kq -
A08 King's Indian Attack: French Variation 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 g1f3 d7d5 g2g3 c7c5 f1g2 b8c6 r1bqkbnr/pp2pppp/2n5/2pp4/8/5NP1/PPPPPPBP/RNBQK2R w KQkq -
A08 King's Indian Attack: Sicilian Variation 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Be7 7. O-O O-O 8. Re1 e2e4 e7e6 d2d3 d7d5 b1d2 g8f6 g1f3 c7c5 g2g3 b8c6 f1g2 f8e7 e1g1 e8g8 f1e1 r1bq1rk1/pp2bppp/2n1pn2/2pp4/4P3/3P1NP1/PPPN1PBP/R1BQR1K1 b - -
A08 King's Indian Attack: Sicilian Variation 1. Nf3 d5 2. g3 c5 3. Bg2 g1f3 d7d5 g2g3 c7c5 f1g2 rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPPBP/RNBQK2R b KQkq -
A08 Zukertort Opening: Grünfeld Reversed 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 e6 5. O-O g1f3 d7d5 g2g3 c7c5 f1g2 b8c6 d2d4 e7e6 e1g1 r1bqkbnr/pp3ppp/2n1p3/2pp4/3P4/5NP1/PPP1PPBP/RNBQ1RK1 b kq -
A09 Réti Opening 1. Nf3 d5 2. c4 g1f3 d7d5 c2c4 rnbqkbnr/ppp1pppp/8/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq -
A09 Réti Opening: Advance Variation 1. Nf3 d5 2. c4 d4 g1f3 d7d5 c2c4 d5d4 rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKB1R w KQkq -
A09 Réti Opening: Advance Variation, Michel Gambit 1. Nf3 d5 2. c4 d4 3. b4 c5 g1f3 d7d5 c2c4 d5d4 b2b4 c7c5 rnbqkbnr/pp2pppp/8/2p5/1PPp4/5N2/P2PPPPP/RNBQKB1R w KQkq -
A09 Réti Opening: Penguin Variation 1. Nf3 d5 2. c4 d4 3. Rg1 g1f3 d7d5 c2c4 d5d4 h1g1 rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKBR1 b Qkq -
A09 Réti Opening: Reversed Blumenfeld Gambit 1. Nf3 d5 2. c4 d4 3. e3 c5 4. b4 g1f3 d7d5 c2c4 d5d4 e2e3 c7c5 b2b4 rnbqkbnr/pp2pppp/8/2p5/1PPp4/4PN2/P2P1PPP/RNBQKB1R b KQkq -
A09 Réti Opening: Réti Accepted 1. Nf3 d5 2. c4 dxc4 g1f3 d7d5 c2c4 d5c4 rnbqkbnr/ppp1pppp/8/8/2p5/5N2/PP1PPPPP/RNBQKB1R w KQkq -
A09 Réti Opening: Réti Gambit, Keres Variation 1. Nf3 d5 2. c4 dxc4 3. e3 Be6 g1f3 d7d5 c2c4 d5c4 e2e3 c8e6 rn1qkbnr/ppp1pppp/4b3/8/2p5/4PN2/PP1P1PPP/RNBQKB1R w KQkq -
A09 Réti Opening: Zilbermints Gambit 1. Nf3 d5 2. c4 b5 g1f3 d7d5 c2c4 b7b5 rnbqkbnr/p1p1pppp/8/1p1p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq -
A10 Dutch Defense: Krause Variation 1. c4 f5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 d6 c2c4 f7f5 b1c3 g8f6 g1f3 b8c6 d2d4 d7d6 r1bqkb1r/ppp1p1pp/2np1n2/5p2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -
A10 English Opening 1. c4 c2c4 rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR b KQkq -
A10 English Opening: Adorjan Defense 1. c4 g6 2. e4 e5 c2c4 g7g6 e2e4 e7e5 rnbqkbnr/pppp1p1p/6p1/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq -
A10 English Opening: Anglo-Dutch Defense 1. c4 f5 c2c4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -
A10 English Opening: Anglo-Dutch Defense, Hickmann Gambit 1. c4 f5 2. e4 c2c4 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq -
A10 English Opening: Anglo-Dutch Variation, Chabanon Gambit 1. c4 f5 2. Nf3 d6 3. e4 c2c4 f7f5 g1f3 d7d6 e2e4 rnbqkbnr/ppp1p1pp/3p4/5p2/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq -
A10 English Opening: Anglo-Dutch Variation, Ferenc Gambit 1. c4 f5 2. Nc3 Nf6 3. e4 c2c4 f7f5 b1c3 g8f6 e2e4 rnbqkb1r/ppppp1pp/5n2/5p2/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq -
A10 English Opening: Anglo-Lithuanian Variation 1. c4 Nc6 c2c4 b8c6 r1bqkbnr/pppppppp/2n5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -
A10 English Opening: Anglo-Scandinavian Defense 1. c4 d5 c2c4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -
A10 English Opening: Anglo-Scandinavian Defense, Löhn Gambit 1. c4 d5 2. cxd5 e6 c2c4 d7d5 c4d5 e7e6 rnbqkbnr/ppp2ppp/4p3/3P4/8/8/PP1PPPPP/RNBQKBNR w KQkq -
A10 English Opening: Anglo-Scandinavian Defense, Malvinas Variation 1. c4 d5 2. cxd5 Qxd5 3. Nc3 Qa5 c2c4 d7d5 c4d5 d8d5 b1c3 d5a5 rnb1kbnr/ppp1pppp/8/q7/8/2N5/PP1PPPPP/R1BQKBNR w KQkq -
A10 English Opening: Anglo-Scandinavian Defense, Schulz Gambit 1. c4 d5 2. cxd5 Nf6 c2c4 d7d5 c4d5 g8f6 rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PP1PPPPP/RNBQKBNR w KQkq -
A10 English Opening: Great Snake Variation 1. c4 g6 c2c4 g7g6 rnbqkbnr/pppppp1p/6p1/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -
A10 English Opening: Jaenisch Gambit 1. c4 b5 c2c4 b7b5 rnbqkbnr/p1pppppp/8/1p6/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -
A10 English Opening: King's English Variation, Botvinnik System, Prickly Pawn Pass System 1. c4 g6 2. Nc3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. e4 d6 6. Nge2 e5 7. O-O c6 8. d3 a6 c2c4 g7g6 b1c3 f8g7 g2g3 g8f6 f1g2 e8g8 e2e4 d7d6 g1e2 e7e5 e1g1 c7c6 d2d3 a7a6 rnbq1rk1/1p3pbp/p1pp1np1/4p3/2P1P3/2NP2P1/PP2NPBP/R1BQ1RK1 w - -
A10 English Opening: Myers Variation 1. c4 g5 2. d4 Bg7 c2c4 g7g5 d2d4 f8g7 rnbqk1nr/ppppppbp/8/6p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A10 English Opening: Porcupine Variation 1. c4 f5 2. Nc3 Nf6 3. e4 fxe4 4. g4 c2c4 f7f5 b1c3 g8f6 e2e4 f5e4 g2g4 rnbqkb1r/ppppp1pp/5n2/8/2P1p1P1/2N5/PP1P1P1P/R1BQKBNR b KQkq -
A10 English Opening: Wade Gambit 1. c4 f5 2. g4 c2c4 f7f5 g2g4 rnbqkbnr/ppppp1pp/8/5p2/2P3P1/8/PP1PPP1P/RNBQKBNR b KQkq -
A10 English Opening: Zilbermints Gambit 1. c4 g5 2. d4 e5 c2c4 g7g5 d2d4 e7e5 rnbqkbnr/pppp1p1p/8/4p1p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A10 King's Indian Defense: Semi-Classical Variation, Exchange Variation 1. c4 g6 2. Nc3 Bg7 3. e3 Nf6 4. d4 O-O 5. Nf3 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 c2c4 g7g6 b1c3 f8g7 e2e3 g8f6 d2d4 e8g8 g1f3 d7d6 f1e2 b8d7 e1g1 e7e5 d4e5 d6e5 r1bq1rk1/pppn1pbp/5np1/4p3/2P5/2N1PN2/PP2BPPP/R1BQ1RK1 w - -
A10 Modern Defense: Averbakh Variation, Pseudo-Sämisch 1. c4 g6 2. e4 Bg7 3. d4 d6 4. Be3 Nf6 5. f3 c2c4 g7g6 e2e4 f8g7 d2d4 d7d6 c1e3 g8f6 f2f3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/4BP2/PP4PP/RN1QKBNR b KQkq -
A10 Modern Defense: Neo-Modern Defense 1. c4 g6 2. e4 Bg7 3. d4 e5 c2c4 g7g6 e2e4 f8g7 d2d4 e7e5 rnbqk1nr/pppp1pbp/6p1/4p3/2PPP3/8/PP3PPP/RNBQKBNR w KQkq -
A11 English Opening: Caro-Kann Defensive System 1. c4 c6 c2c4 c7c6 rnbqkbnr/pp1ppppp/2p5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -
A12 Réti Opening: Anglo-Slav Variation, Bled Variation 1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 4. c4 c6 g1f3 d7d5 b2b3 g8f6 c1b2 g7g6 c2c4 c7c6 rnbqkb1r/pp2pp1p/2p2np1/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq -
A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation 1. Nf3 d5 2. c4 c6 3. b3 g1f3 d7d5 c2c4 c7c6 b2b3 rnbqkbnr/pp2pppp/2p5/3p4/2P5/1P3N2/P2PPPPP/RNBQKB1R b KQkq -
A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation 1. Nf3 d5 2. c4 c6 3. b3 Bg4 g1f3 d7d5 c2c4 c7c6 b2b3 c8g4 rn1qkbnr/pp2pppp/2p5/3p4/2P3b1/1P3N2/P2PPPPP/RNBQKB1R w KQkq -
A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 g1f3 g8f6 c2c4 c7c6 b2b3 d7d5 c1b2 rnbqkb1r/pp2pppp/2p2n2/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R b KQkq -
A12 Réti Opening: Anglo-Slav Variation, Capablanca Variation 1. c4 Nf6 2. Nf3 c6 3. b3 d5 4. Bb2 Bg4 c2c4 g8f6 g1f3 c7c6 b2b3 d7d5 c1b2 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3N2/PB1PPPPP/RN1QKB1R w KQkq -
A12 Réti Opening: Anglo-Slav Variation, London Defensive System 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 c2c4 g8f6 g2g3 c7c6 g1f3 d7d5 b2b3 c8f5 rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3NP1/P2PPP1P/RNBQKB1R w KQkq -
A12 Réti Opening: Anglo-Slav Variation, New York System 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 g1f3 g8f6 c2c4 c7c6 b2b3 d7d5 c1b2 c8f5 rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq -
A12 Réti Opening: Anglo-Slav Variation, Torre System 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bg4 c2c4 g8f6 g2g3 c7c6 g1f3 d7d5 b2b3 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3NP1/P2PPP1P/RNBQKB1R w KQkq -
A13 English Opening: Agincourt Defense 1. c4 e6 c2c4 e7e6 rnbqkbnr/pppp1ppp/4p3/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -
A13 English Opening: Agincourt Defense 1. c4 e6 2. Nf3 c2c4 e7e6 g1f3 rnbqkbnr/pppp1ppp/4p3/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq -
A13 English Opening: Agincourt Defense 1. c4 e6 2. Nf3 d5 c2c4 e7e6 g1f3 d7d5 rnbqkbnr/ppp2ppp/4p3/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq -
A13 English Opening: Agincourt Defense, Bogoljubov Defense 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bd6 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8d6 rnbqk2r/ppp2ppp/3bpn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq -
A13 English Opening: Agincourt Defense, Catalan Defense 1. Nf3 d5 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O g1f3 d7d5 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 rn1qkbnr/pbp2ppp/1p2p3/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq -
A13 English Opening: Agincourt Defense, Catalan Defense 1. Nf3 d5 2. c4 e6 3. g3 c5 g1f3 d7d5 c2c4 e7e6 g2g3 c7c5 rnbqkbnr/pp3ppp/4p3/2pp4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq -
A13 English Opening: Agincourt Defense, Catalan Defense Accepted 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 rnbqkb1r/ppp2ppp/4pn2/8/2p5/5NP1/PP1PPPBP/RNBQK2R w KQkq -
A13 English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 c7c6 rnbqkb1r/pp3ppp/2p1pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq -
A13 English Opening: Agincourt Defense, Kurajica Defense 1. Nf3 d5 2. c4 e6 3. g3 c6 g1f3 d7d5 c2c4 e7e6 g2g3 c7c6 rnbqkbnr/pp3ppp/2p1p3/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq -
A13 English Opening: Agincourt Defense, Tarrasch Defense 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. b3 c5 5. Bg2 Nc6 6. O-O Be7 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 b2b3 c7c5 f1g2 b8c6 e1g1 f8e7 r1bqk2r/pp2bppp/2n1pn2/2pp4/2P5/1P3NP1/P2PPPBP/RNBQ1RK1 w kq -
A13 English Opening: Agincourt Defense, Wimpy System 1. Nf3 Nf6 2. c4 e6 3. b3 d5 4. Bb2 c5 5. e3 g1f3 g8f6 c2c4 e7e6 b2b3 d7d5 c1b2 c7c5 e2e3 rnbqkb1r/pp3ppp/4pn2/2pp4/2P5/1P2PN2/PB1P1PPP/RN1QKB1R b KQkq -
A13 English Opening: Neo-Catalan 1. Nf3 Nf6 2. c4 e6 3. g3 d5 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 rnbqkb1r/ppp2ppp/4pn2/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq -
A13 English Opening: Neo-Catalan Declined 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq -
A13 English Opening: Romanishin Gambit 1. Nf3 Nf6 2. c4 e6 3. g3 a6 4. Bg2 b5 g1f3 g8f6 c2c4 e7e6 g2g3 a7a6 f1g2 b7b5 rnbqkb1r/2pp1ppp/p3pn2/1p6/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq -
A13 Horwitz Defense: Zilbermints Gambit 1. c4 e6 2. d4 e5 c2c4 e7e6 d2d4 e6e5 rnbqkbnr/pppp1ppp/8/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A14 English Opening: Agincourt Defense, Keres Defense 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nc6 7. O-O Be7 c2c4 c7c5 g1f3 g8f6 b1c3 e7e6 g2g3 d7d5 c4d5 f6d5 f1g2 b8c6 e1g1 f8e7 r1bqk2r/pp2bppp/2n1p3/2pn4/8/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq -
A14 English Opening: Agincourt Defense, Neo-Catalan Declined 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 e1g1 rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq -
A14 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation, Stonewall Line 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 c6 7. Bb2 g1f3 d7d5 c2c4 e7e6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 b2b3 c7c6 c1b2 rnbq1rk1/pp2bppp/2p1pn2/3p4/2P5/1P3NP1/PB1PPPBP/RN1Q1RK1 b - -
A15 English Opening: Anglo-Indian Defense 1. c4 Nf6 c2c4 g8f6 rnbqkb1r/pppppppp/5n2/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -
A15 English Opening: Anglo-Indian Defense, Anti-Anti-Grünfeld 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 g1f3 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 rnbqk2r/ppppppbp/5np1/8/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq -
A15 English Opening: Anglo-Indian Defense, King's Indian Formation 1. Nf3 Nf6 2. c4 g6 g1f3 g8f6 c2c4 g7g6 rnbqkb1r/pppppp1p/5np1/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq -
A15 English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 g6 g1f3 g8f6 c2c4 b7b6 g2g3 c8b7 f1g2 g7g6 rn1qkb1r/pbpppp1p/1p3np1/8/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq -
A15 English Opening: Anglo-Indian Defense, King's Knight Variation 1. Nf3 Nf6 2. c4 g1f3 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq -
A15 English Opening: Anglo-Indian Defense, Old Indian Formation 1. Nf3 Nf6 2. c4 d6 g1f3 g8f6 c2c4 d7d6 rnbqkb1r/ppp1pppp/3p1n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq -
A15 English Opening: Anglo-Indian Defense, Queen's Indian Formation 1. Nf3 Nf6 2. c4 b6 g1f3 g8f6 c2c4 b7b6 rnbqkb1r/p1pppppp/1p3n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq -
A15 English Opening: Anglo-Indian Defense, Queen's Indian Formation 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 g1f3 g8f6 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7 rn1qkb1r/pbpp1ppp/1p2pn2/8/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq -
A15 English Opening: Anglo-Indian Defense, Romanishin Variation 1. Nf3 Nf6 2. c4 e6 3. g3 a6 g1f3 g8f6 c2c4 e7e6 g2g3 a7a6 rnbqkb1r/1ppp1ppp/p3pn2/8/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq -
A15 English Opening: Anglo-Indian Defense, Scandinavian Defense 1. Nf3 Nf6 2. c4 d5 g1f3 g8f6 c2c4 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq -
A15 English Opening: Anglo-Indian Defense, Scandinavian Defense, Exchange Variation 1. Nf3 Nf6 2. c4 d5 3. cxd5 Nxd5 g1f3 g8f6 c2c4 d7d5 c4d5 f6d5 rnbqkb1r/ppp1pppp/8/3n4/8/5N2/PP1PPPPP/RNBQKB1R w KQkq -
A15 English Opening: Anglo-Indian Defense, Slav Formation 1. Nf3 Nf6 2. c4 g6 3. g3 c6 g1f3 g8f6 c2c4 g7g6 g2g3 c7c6 rnbqkb1r/pp1ppp1p/2p2np1/8/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq -
A15 English Orangutan 1. c4 Nf6 2. b4 c2c4 g8f6 b2b4 rnbqkb1r/pppppppp/5n2/8/1PP5/8/P2PPPPP/RNBQKBNR b KQkq -
A15 Polish Opening: King's Indian Variation, Sokolsky Attack 1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Bb2 O-O 5. e3 d6 6. d4 g1f3 g8f6 c2c4 g7g6 b2b4 f8g7 c1b2 e8g8 e2e3 d7d6 d2d4 rnbq1rk1/ppp1ppbp/3p1np1/8/1PPP4/4PN2/PB3PPP/RN1QKB1R b KQ -
A16 English Opening: Anglo-Grünfeld Defense 1. c4 Nf6 2. Nc3 d5 c2c4 g8f6 b1c3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -
A16 English Opening: Anglo-Grünfeld Defense, Korchnoi Variation 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Bg7 6. Bg2 e5 g1f3 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 g2g3 f8g7 f1g2 e7e5 rnbqk2r/ppp2pbp/6p1/3np3/8/2N2NP1/PP1PPPBP/R1BQK2R w KQkq -
A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g1f3 rnbqkb1r/ppp1pppp/8/3n4/8/2N2N2/PP1PPPPP/R1BQKB1R b KQkq -
A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nb6 c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5b6 rnbqkb1r/ppp1pp1p/1n4p1/8/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -
A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3 c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5c3 rnbqkb1r/ppp1pp1p/6p1/8/8/2n3P1/PP1PPPBP/R1BQK1NR w KQkq -
A16 English Opening: Anglo-Indian Defense, Queen's Knight Variation 1. c4 Nf6 2. Nc3 c2c4 g8f6 b1c3 rnbqkb1r/pppppppp/5n2/8/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq -
A17 English Opening: Anglo-Indian Defense, Hedgehog System 1. c4 Nf6 2. Nc3 e6 c2c4 g8f6 b1c3 e7e6 rnbqkb1r/pppp1ppp/4pn2/8/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -
A17 English Opening: Anglo-Indian Defense, Nimzo-English 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 g1f3 g8f6 c2c4 e7e6 b1c3 f8b4 rnbqk2r/pppp1ppp/4pn2/8/1bP5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -
A17 English Opening: Anglo-Indian Defense, Queen's Indian Formation 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 c2c4 g8f6 b1c3 e7e6 g1f3 b7b6 rnbqkb1r/p1pp1ppp/1p2pn2/8/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -
A17 English Opening: Anglo-Indian Defense, Queen's Indian Variation 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. e4 Bb7 5. Bd3 c2c4 g8f6 b1c3 e7e6 g1f3 b7b6 e2e4 c8b7 f1d3 rn1qkb1r/pbpp1ppp/1p2pn2/8/2P1P3/2NB1N2/PP1P1PPP/R1BQK2R b KQkq -
A17 English Opening: Anglo-Indian Defense, Zvjaginsev-Krasenkow Attack 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. g4 c2c4 g8f6 b1c3 e7e6 g1f3 f8b4 g2g4 rnbqk2r/pppp1ppp/4pn2/8/1bP3P1/2N2N2/PP1PPP1P/R1BQKB1R b KQkq -
A18 English Opening: Mikenas-Carls Variation 1. c4 Nf6 2. Nc3 e6 3. e4 c2c4 g8f6 b1c3 e7e6 e2e4 rnbqkb1r/pppp1ppp/4pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq -
A18 English Opening: Mikenas-Carls Variation 1. c4 Nf6 2. Nc3 e6 3. e4 Nc6 c2c4 g8f6 b1c3 e7e6 e2e4 b8c6 r1bqkb1r/pppp1ppp/2n1pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq -
A18 English Opening: Mikenas-Carls Variation 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 c2c4 g8f6 b1c3 e7e6 e2e4 d7d5 e4e5 rnbqkb1r/ppp2ppp/4pn2/3pP3/2P5/2N5/PP1P1PPP/R1BQKBNR b KQkq -
A19 English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit 1. c4 Nf6 2. Nc3 e6 3. e4 c5 4. e5 Ng8 c2c4 g8f6 b1c3 e7e6 e2e4 c7c5 e4e5 f6g8 rnbqkbnr/pp1p1ppp/4p3/2p1P3/2P5/2N5/PP1P1PPP/R1BQKBNR w KQkq -
A19 English Opening: Mikenas-Carls, Sicilian 1. c4 Nf6 2. Nc3 e6 3. e4 c5 c2c4 g8f6 b1c3 e7e6 e2e4 c7c5 rnbqkb1r/pp1p1ppp/4pn2/2p5/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq -
A20 English Opening: Drill Variation 1. c4 e5 2. g3 h5 c2c4 e7e5 g2g3 h7h5 rnbqkbnr/pppp1pp1/8/4p2p/2P5/6P1/PP1PPP1P/RNBQKBNR w KQkq -
A20 English Opening: King's English Variation 1. c4 e5 c2c4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -
A20 English Opening: King's English Variation, Kahiko-Hula Gambit 1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3 c2c4 e7e5 e2e3 g8f6 f2f4 e5f4 g1f3 rnbqkb1r/pppp1ppp/5n2/8/2P2p2/4PN2/PP1P2PP/RNBQKB1R b KQkq -
A20 English Opening: King's English Variation, Nimzowitsch Variation 1. c4 e5 2. Nf3 c2c4 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq -
A20 English Opening: King's English Variation, Nimzowitsch-Flohr Variation 1. c4 e5 2. Nf3 e4 c2c4 e7e5 g1f3 e5e4 rnbqkbnr/pppp1ppp/8/8/2P1p3/5N2/PP1PPPPP/RNBQKB1R w KQkq -
A21 English Opening: King's English Variation 1. c4 e5 2. Nc3 d6 3. Nf3 c2c4 e7e5 b1c3 d7d6 g1f3 rnbqkbnr/ppp2ppp/3p4/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq -
A21 English Opening: King's English Variation, Keres Defense 1. c4 e5 2. Nc3 d6 3. g3 c6 c2c4 e7e5 b1c3 d7d6 g2g3 c7c6 rnbqkbnr/pp3ppp/2pp4/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -
A21 English Opening: King's English Variation, Kramnik-Shirov Counterattack 1. c4 e5 2. Nc3 Bb4 c2c4 e7e5 b1c3 f8b4 rnbqk1nr/pppp1ppp/8/4p3/1bP5/2N5/PP1PPPPP/R1BQKBNR w KQkq -
A21 English Opening: King's English Variation, Reversed Sicilian 1. c4 e5 2. Nc3 c2c4 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq -
A21 English Opening: King's English Variation, Smyslov Defense 1. c4 e5 2. Nc3 d6 3. Nf3 Bg4 c2c4 e7e5 b1c3 d7d6 g1f3 c8g4 rn1qkbnr/ppp2ppp/3p4/4p3/2P3b1/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -
A21 English Opening: King's English Variation, Troger Defense 1. c4 e5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Be6 c2c4 e7e5 b1c3 b8c6 g2g3 d7d6 f1g2 c8e6 r2qkbnr/ppp2ppp/2npb3/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -
A22 English Opening: Carls-Bremen System 1. c4 e5 2. Nc3 Nf6 3. g3 c2c4 e7e5 b1c3 g8f6 g2g3 rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq -
A22 English Opening: King's English Variation, Bellon Gambit 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 b5 c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 b7b5 rnbqkb1r/p1pp1ppp/5n2/1p4N1/2P1p3/2N5/PP1PPPPP/R1BQKB1R w KQkq -
A22 English Opening: King's English Variation, Two Knights Variation 1. c4 e5 2. Nc3 Nf6 c2c4 e7e5 b1c3 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -
A22 English Opening: King's English Variation, Two Knights Variation, Reversed Dragon 1. c4 e5 2. Nc3 Nf6 3. g3 d5 c2c4 e7e5 b1c3 g8f6 g2g3 d7d5 rnbqkb1r/ppp2ppp/5n2/3pp3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -
A22 English Opening: King's English Variation, Two Knights Variation, Smyslov System 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 c2c4 e7e5 b1c3 g8f6 g2g3 f8b4 rnbqk2r/pppp1ppp/5n2/4p3/1bP5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -
A22 English Opening: King's English, Erbenheimer Gambit 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 Ng4 c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 f6g4 rnbqkb1r/pppp1ppp/8/6N1/2P1p1n1/2N5/PP1PPPPP/R1BQKB1R w KQkq -
A22 English Opening: King's English, Mazedonisch 1. c4 e5 2. Nc3 Nf6 3. f4 c2c4 e7e5 b1c3 g8f6 f2f4 rnbqkb1r/pppp1ppp/5n2/4p3/2P2P2/2N5/PP1PP1PP/R1BQKBNR b KQkq -
A23 English Opening: King's English Variation, Two Knights Variation, Keres Variation 1. c4 e5 2. Nc3 Nf6 3. g3 c6 c2c4 e7e5 b1c3 g8f6 g2g3 c7c6 rnbqkb1r/pp1p1ppp/2p2n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -
A24 English Opening: King's English Variation, Two Knights Variation, Fianchetto Line 1. c4 e5 2. Nc3 Nf6 3. g3 g6 c2c4 e7e5 b1c3 g8f6 g2g3 g7g6 rnbqkb1r/pppp1p1p/5np1/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -
A25 English Opening: Closed, Taimanov Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Rb1 Nh6 5. Bg2 Bg7 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 a1b1 g8h6 f1g2 f8g7 r1bqk2r/pppp1pbp/2n3pn/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR w Kkq -
A25 English Opening: Closed, Taimanov Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Nh6 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 g8h6 r1bqk2r/ppp2pbp/2np2pn/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq -
A25 English Opening: King's English Variation, Bremen-Hort Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Be6 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 c8e6 r2qk1nr/ppp2pbp/2npb1p1/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq -
A25 English Opening: King's English Variation, Closed System 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR b KQkq -
A25 English Opening: King's English Variation, Hungarian Attack 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Rb1 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 a1b1 r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR b Kkq -
A25 English Opening: King's English Variation, Reversed Closed Sicilian 1. c4 e5 2. Nc3 Nc6 c2c4 e7e5 b1c3 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -
A25 English Opening: King's English Variation, Taimanov Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -
A26 English Opening: King's English Variation, Botvinnik System 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 e2e4 r1bqk1nr/ppp2pbp/2np2p1/4p3/2P1P3/2NP2P1/PP3PBP/R1BQK1NR b KQkq -
A26 English Opening: King's English Variation, Closed System, Full Symmetry 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 r1bqk1nr/ppp2pbp/2np2p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR w KQkq -
A27 English Opening: King's English Variation, Three Knights System 1. c4 e5 2. Nc3 Nc6 3. Nf3 c2c4 e7e5 b1c3 b8c6 g1f3 r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq -
A28 English Opening: Four Knights System, Nimzowitsch Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e4 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq -
A28 English Opening: King's English Variation, Four Knights Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -
A28 English Opening: King's English Variation, Four Knights Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d4 e5d4 f3d4 f8b4 c1g5 h7h6 g5h4 b4c3 b2c3 c6e5 r1bqk2r/pppp1pp1/5n1p/4n3/2PN3B/2P5/P3PPPP/R2QKB1R w KQkq -
A28 English Opening: King's English Variation, Four Knights Variation, Bradley Beach Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 e4 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d4 e5e4 r1bqkb1r/pppp1ppp/2n2n2/8/2PPp3/2N2N2/PP2PPPP/R1BQKB1R w KQkq -
A28 English Opening: King's English Variation, Four Knights Variation, Flexible Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2NP1N2/PP2PPPP/R1BQKB1R b KQkq -
A28 English Opening: King's English Variation, Four Knights Variation, Korchnoi Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. a3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 a2a3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/P1N2N2/1P1PPPPP/R1BQKB1R b KQkq -
A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N1PN2/PP1P1PPP/R1BQKB1R b KQkq -
A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 f8b4 d1c2 b4c3 r1bqk2r/pppp1ppp/2n2n2/4p3/2P5/2b1PN2/PPQP1PPP/R1B1KB1R w KQkq -
A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Qf5 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 f8b4 d1c2 e8g8 c3d5 f8e8 c2f5 r1bqr1k1/pppp1ppp/2n2n2/3NpQ2/1bP5/4PN2/PP1P1PPP/R1B1KB1R b KQ -
A29 English Opening: King's English Variation, Four Knights Variation, Fianchetto Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 g2g3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2NP1/PP1PPP1P/R1BQKB1R b KQkq -
A30 English Opening: Symmetrical Variation 1. c4 c5 c2c4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -
A30 English Opening: Symmetrical Variation 1. c4 c5 2. Nf3 c2c4 c7c5 g1f3 rnbqkbnr/pp1ppppp/8/2p5/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq -
A30 English Opening: Symmetrical Variation, Hedgehog Defense 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 g1f3 g8f6 c2c4 c7c5 b1c3 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7 rn1qk2r/pb1pbppp/1p2pn2/2p5/2P5/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq -
A30 English Opening: Symmetrical Variation, Napolitano Gambit 1. c4 c5 2. Nf3 Nf6 3. b4 c2c4 c7c5 g1f3 g8f6 b2b4 rnbqkb1r/pp1ppppp/5n2/2p5/1PP5/5N2/P2PPPPP/RNBQKB1R b KQkq -
A30 English Opening: Symmetrical, Hedgehog, Flexible Formation 1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 10. b3 Nbd7 g1f3 c7c5 c2c4 g8f6 b1c3 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7 d2d4 c5d4 d1d4 d7d6 f1d1 a7a6 b2b3 b8d7 r2qk2r/1b1nbppp/pp1ppn2/8/2PQ4/1PN2NP1/P3PPBP/R1BR2K1 w kq -
A30 English Opening: Wing Gambit 1. c4 c5 2. b4 c2c4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1PP5/8/P2PPPPP/RNBQKBNR b KQkq -
A31 English Opening: Symmetrical Variation, Anti-Benoni Variation 1. d4 Nf6 2. c4 c5 3. Nf3 d2d4 g8f6 c2c4 c7c5 g1f3 rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq -
A32 English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e6 d2d4 g8f6 c2c4 c7c5 g1f3 c5d4 f3d4 e7e6 rnbqkb1r/pp1p1ppp/4pn2/8/2PN4/8/PP2PPPP/RNBQKB1R w KQkq -
A33 English Opening: Symmetrical Variation, Anti-Benoni Variation, Geller Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. g3 Qb6 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 d2d4 c5d4 f3d4 e7e6 g2g3 d8b6 r1b1kb1r/pp1p1ppp/1qn1pn2/8/2PN4/2N3P1/PP2PP1P/R1BQKB1R w KQkq -
A33 English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 d2d4 c5d4 f3d4 e7e6 r1bqkb1r/pp1p1ppp/2n1pn2/8/2PN4/2N5/PP2PPPP/R1BQKB1R w KQkq -
A34 English Opening: Symmetrical Variation, Fianchetto Variation 1. c4 Nf6 2. Nc3 c5 3. g3 c2c4 g8f6 b1c3 c7c5 g2g3 rnbqkb1r/pp1ppppp/5n2/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq -
A34 English Opening: Symmetrical Variation, Normal Variation 1. c4 c5 2. Nc3 c2c4 c7c5 b1c3 rnbqkbnr/pp1ppppp/8/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq -
A34 English Opening: Symmetrical Variation, Rubinstein Variation 1. c4 Nf6 2. Nc3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7 c2c4 g8f6 b1c3 c7c5 g2g3 d7d5 c4d5 f6d5 f1g2 d5c7 rnbqkb1r/ppn1pppp/8/2p5/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -
A34 English Opening: Symmetrical Variation, Three Knights Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 g1f3 g8f6 c2c4 c7c5 b1c3 d7d5 c4d5 f6d5 rnbqkb1r/pp2pppp/8/2pn4/8/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -
A35 English Opening: Symmetrical Variation, Four Knights Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 r1bqkb1r/pp1ppppp/2n2n2/2p5/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -
A35 English Opening: Symmetrical Variation, Two Knights Variation 1. c4 c5 2. Nc3 Nc6 c2c4 c7c5 b1c3 b8c6 r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -
A36 English Opening: Symmetrical Variation, Botvinnik System 1. e4 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e2e4 c7c5 c2c4 b8c6 b1c3 g7g6 g2g3 f8g7 f1g2 r1bqk1nr/pp1pppbp/2n3p1/2p5/2P1P3/2N3P1/PP1P1PBP/R1BQK1NR b KQkq -
A36 English Opening: Symmetrical Variation, Botvinnik System Reversed 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. e3 e5 c2c4 c7c5 b1c3 g7g6 g2g3 f8g7 f1g2 b8c6 e2e3 e7e5 r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N1P1P1/PP1P1PBP/R1BQK1NR w KQkq -
A36 English Opening: Symmetrical Variation, Fianchetto Variation 1. c4 c5 2. Nc3 Nc6 3. g3 c2c4 c7c5 b1c3 b8c6 g2g3 r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq -
A36 English Opening: Symmetrical Variation, Symmetrical Variation 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 c2c4 c7c5 g2g3 g7g6 f1g2 f8g7 b1c3 b8c6 r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -
A37 English Opening: Symmetrical Variation, Botvinnik System Reversed 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 4. g3 g6 5. Bg2 Bg7 g1f3 c7c5 c2c4 b8c6 b1c3 e7e5 g2g3 g7g6 f1g2 f8g7 r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq -
A37 English Opening: Symmetrical Variation, Two Knights Line 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R b KQkq -
A38 English Opening: Symmetrical Variation, Double Fianchetto 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. b3 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 g8f6 e1g1 e8g8 b2b3 r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/1PN2NP1/P2PPPBP/R1BQ1RK1 b - -
A38 English Opening: Symmetrical Variation, Duchamp Variation 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c5 6. Nc3 Nc6 7. d3 g1f3 g8f6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 c2c4 c7c5 b1c3 b8c6 d2d3 r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/2NP1NP1/PP2PPBP/R1BQ1RK1 b - -
A38 English Opening: Symmetrical Variation, Full Symmetry Line 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 r1bqk2r/pp1pppbp/2n2np1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq -
A39 English Opening: Symmetrical Variation, Mecking Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 d2d4 r1bq1rk1/pp1pppbp/2n2np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - -
A40 Australian Defense 1. d4 Na6 d2d4 b8a6 r1bqkbnr/pppppppp/n7/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Benoni Defense: Franco-Sicilian Hybrid 1. d4 e6 2. c4 c5 3. d5 exd5 4. cxd5 d6 5. Nc3 g6 6. e4 Bg7 7. Nf3 Ne7 d2d4 e7e6 c2c4 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 g1f3 g8e7 rnbqk2r/pp2npbp/3p2p1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq -
A40 Borg Defense: Borg Gambit 1. d4 g5 d2d4 g7g5 rnbqkbnr/pppppp1p/8/6p1/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Colle System: Pterodactyl Variation 1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 Qa5+ d2d4 g7g6 g1f3 f8g7 e2e3 c7c5 f1d3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq -
A40 Colle System: Siroccopteryx Variation 1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 cxd4 5. Nxd4 Qa5+ d2d4 g7g6 g1f3 f8g7 e2e3 c7c5 f1d3 c5d4 f3d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q7/3N4/3BP3/PPP2PPP/RNBQK2R w KQkq -
A40 Dutch Defense: Senechaud Gambit 1. d4 e6 2. Bf4 f5 3. g4 d2d4 e7e6 c1f4 f7f5 g2g4 rnbqkbnr/pppp2pp/4p3/5p2/3P1BP1/8/PPP1PP1P/RN1QKBNR b KQkq -
A40 Dutch Defense: Stonewall Variation, Modern Variation 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 d5 5. O-O Bd6 6. c4 c6 d2d4 e7e6 g1f3 f7f5 g2g3 g8f6 f1g2 d7d5 e1g1 f8d6 c2c4 c7c6 rnbqk2r/pp4pp/2pbpn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w kq -
A40 English Defense 1. d4 b6 d2d4 b7b6 rnbqkbnr/p1pppppp/1p6/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 English Defense 1. d4 e6 2. c4 b6 d2d4 e7e6 c2c4 b7b6 rnbqkbnr/p1pp1ppp/1p2p3/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A40 English Defense: Blumenfeld-Hiva Gambit 1. d4 b6 2. c4 c5 3. d5 e6 4. e4 b5 5. cxb5 f5 d2d4 b7b6 c2c4 c7c5 d4d5 e7e6 e2e4 b6b5 c4b5 f7f5 rnbqkbnr/p2p2pp/4p3/1PpP1p2/4P3/8/PP3PPP/RNBQKBNR w KQkq -
A40 English Defense: Eastbourne Gambit 1. d4 b6 2. c4 Bb7 3. Nc3 e5 d2d4 b7b6 c2c4 c8b7 b1c3 e7e5 rn1qkbnr/pbpp1ppp/1p6/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -
A40 English Defense: Hartlaub Gambit Accepted 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6 c2c4 e7e6 d2d4 b7b6 b1c3 c8b7 e2e4 f7f5 e4f5 g8f6 rn1qkb1r/pbpp2pp/1p2pn2/5P2/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq -
A40 English Defense: Hartlaub Gambit Declined 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. d5 c2c4 e7e6 d2d4 b7b6 b1c3 c8b7 e2e4 f7f5 d4d5 rn1qkbnr/pbpp2pp/1p2p3/3P1p2/2P1P3/2N5/PP3PPP/R1BQKBNR b KQkq -
A40 English Defense: Perrin Variation 1. d4 e6 2. c4 b6 3. e4 Bb7 4. Bd3 Nc6 d2d4 e7e6 c2c4 b7b6 e2e4 c8b7 f1d3 b8c6 r2qkbnr/pbpp1ppp/1pn1p3/8/2PPP3/3B4/PP3PPP/RNBQK1NR w KQkq -
A40 English Defense: Poli Gambit 1. d4 e6 2. c4 b6 3. e4 Bb7 4. f3 f5 5. exf5 Nh6 d2d4 e7e6 c2c4 b7b6 e2e4 c8b7 f2f3 f7f5 e4f5 g8h6 rn1qkb1r/pbpp2pp/1p2p2n/5P2/2PP4/5P2/PP4PP/RNBQKBNR w KQkq -
A40 Englund Gambit 1. d4 e5 d2d4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Englund Gambit Complex Declined 1. d4 e5 2. d5 d2d4 e7e5 d4d5 rnbqkbnr/pppp1ppp/8/3Pp3/8/8/PPP1PPPP/RNBQKBNR b KQkq -
A40 Englund Gambit Complex Declined: Diemer Counterattack 1. d4 e5 2. d5 Bc5 3. e4 Qh4 d2d4 e7e5 d4d5 f8c5 e2e4 d8h4 rnb1k1nr/pppp1ppp/8/2bPp3/4P2q/8/PPP2PPP/RNBQKBNR w KQkq -
A40 Englund Gambit Complex: Englund Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 r1b1kbnr/ppppqppp/2n5/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A40 Englund Gambit Complex: Felbecker Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Bc5 d2d4 e7e5 d4e5 b8c6 g1f3 f8c5 r1bqk1nr/pppp1ppp/2n5/2b1P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A40 Englund Gambit Complex: Hartlaub-Charlick Gambit 1. d4 e5 2. dxe5 d6 d2d4 e7e5 d4e5 d7d6 rnbqkbnr/ppp2ppp/3p4/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Englund Gambit Complex: Mosquito Gambit 1. d4 e5 2. dxe5 Qh4 d2d4 e7e5 d4e5 d8h4 rnb1kbnr/pppp1ppp/8/4P3/7q/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Englund Gambit Complex: Soller Gambit 1. d4 e5 2. dxe5 f6 d2d4 e7e5 d4e5 f7f6 rnbqkbnr/pppp2pp/5p2/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Englund Gambit Complex: Soller Gambit Deferred 1. d4 e5 2. dxe5 Nc6 3. Nf3 f6 d2d4 e7e5 d4e5 b8c6 g1f3 f7f6 r1bqkbnr/pppp2pp/2n2p2/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A40 Englund Gambit Complex: Stockholm Variation 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Qd5 d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5 r1b1kbnr/ppppqppp/2n5/3QP3/8/5N2/PPP1PPPP/RNB1KB1R b KQkq -
A40 Englund Gambit Complex: Zilbermints Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Nge7 d2d4 e7e5 d4e5 b8c6 g1f3 g8e7 r1bqkb1r/ppppnppp/2n5/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A40 Englund Gambit Complex: Zilbermints Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 h6 d2d4 e7e5 d4e5 b8c6 g1f3 h7h6 r1bqkbnr/pppp1pp1/2n4p/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A40 Englund Gambit Declined: Reversed Alekhine 1. d4 e5 2. Nf3 d2d4 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq -
A40 Englund Gambit Declined: Reversed Brooklyn 1. d4 e5 2. Nf3 e4 3. Ng1 d2d4 e7e5 g1f3 e5e4 f3g1 rnbqkbnr/pppp1ppp/8/8/3Pp3/8/PPP1PPPP/RNBQKBNR b KQkq -
A40 Englund Gambit Declined: Reversed Krebs 1. d4 e5 2. Nf3 e4 d2d4 e7e5 g1f3 e5e4 rnbqkbnr/pppp1ppp/8/8/3Pp3/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A40 Englund Gambit Declined: Reversed Mokele Mbembe 1. d4 e5 2. Nf3 e4 3. Ne5 d2d4 e7e5 g1f3 e5e4 f3e5 rnbqkbnr/pppp1ppp/8/4N3/3Pp3/8/PPP1PPPP/RNBQKB1R b KQkq -
A40 Horwitz Defense 1. d4 e6 d2d4 e7e6 rnbqkbnr/pppp1ppp/4p3/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Kangaroo Defense 1. d4 e6 2. c4 Bb4+ d2d4 e7e6 c2c4 f8b4 rnbqk1nr/pppp1ppp/4p3/8/1bPP4/8/PP2PPPP/RNBQKBNR w KQkq -
A40 Kangaroo Defense: Keres Defense, Transpositional Variation 1. d4 e6 2. c4 Bb4+ 3. Nc3 d2d4 e7e6 c2c4 f8b4 b1c3 rnbqk1nr/pppp1ppp/4p3/8/1bPP4/2N5/PP2PPPP/R1BQKBNR b KQkq -
A40 Mikenas Defense 1. d4 Nc6 d2d4 b8c6 r1bqkbnr/pppppppp/2n5/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Mikenas Defense: Cannstatter Variation 1. d4 Nc6 2. c4 e5 3. d5 Nd4 d2d4 b8c6 c2c4 e7e5 d4d5 c6d4 r1bqkbnr/pppp1ppp/8/3Pp3/2Pn4/8/PP2PPPP/RNBQKBNR w KQkq -
A40 Mikenas Defense: Lithuanian Variation 1. d4 Nc6 2. c4 e5 3. d5 Nce7 d2d4 b8c6 c2c4 e7e5 d4d5 c6e7 r1bqkbnr/ppppnppp/8/3Pp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq -
A40 Mikenas Defense: Pozarek Gambit 1. d4 Nc6 2. c4 e5 3. dxe5 Nxe5 4. Nc3 Nxc4 d2d4 b8c6 c2c4 e7e5 d4e5 c6e5 b1c3 e5c4 r1bqkbnr/pppp1ppp/8/8/2n5/2N5/PP2PPPP/R1BQKBNR w KQkq -
A40 Modern Defense 1. d4 g6 d2d4 g7g6 rnbqkbnr/pppppp1p/6p1/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Modern Defense: Beefeater Variation 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 f5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 f7f5 rnbqk1nr/pp1pp2p/6p1/2pP1p2/2P5/2P5/P3PPPP/R1BQKBNR w KQkq -
A40 Modern Defense: Lizard Defense, Pirc-Diemer Gambit 1. d4 g6 2. h4 Nf6 3. h5 d2d4 g7g6 h2h4 g8f6 h4h5 rnbqkb1r/pppppp1p/5np1/7P/3P4/8/PPP1PPP1/RNBQKBNR b KQkq -
A40 Montevideo Defense 1. d4 Nc6 2. d5 Nb8 d2d4 b8c6 d4d5 c6b8 rnbqkbnr/pppppppp/8/3P4/8/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Polish Defense 1. d4 b5 d2d4 b7b5 rnbqkbnr/p1pppppp/8/1p6/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A40 Polish Defense: Spassky Gambit Accepted 1. d4 b5 2. e4 Bb7 3. Bxb5 d2d4 b7b5 e2e4 c8b7 f1b5 rn1qkbnr/pbpppppp/8/1B6/3PP3/8/PPP2PPP/RNBQK1NR b KQkq -
A40 Pterodactyl Defense: Central, Benoni Beefeater Pterodactyl 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 Bxc3+ 6. bxc3 Qa5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 d7d6 e2e4 g7c3 b2c3 d8a5 rnb1k1nr/pp2pp1p/3p2p1/q1pP4/2P1P3/2P5/P4PPP/R1BQKBNR w KQkq -
A40 Pterodactyl Defense: Central, Benoni Pterodactyl 1. d4 g6 2. c4 Bg7 3. e4 c5 4. d5 Qa5+ d2d4 g7g6 c2c4 f8g7 e2e4 c7c5 d4d5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1pP4/2P1P3/8/PP3PPP/RNBQKBNR w KQkq -
A40 Pterodactyl Defense: Fianchetto, Queen Benoni Pterodactyl 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Qa5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1pP4/2P5/2N5/PP2PPPP/R1BQKBNR w KQkq -
A40 Pterodactyl Defense: Fianchetto, Queen Pteranodon 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 Qa5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 d8a5 rnb1k1nr/pp1ppp1p/6p1/q1pP4/2P5/2P5/P3PPPP/R1BQKBNR w KQkq -
A40 Pterodactyl Defense: Fianchetto, Queen Pterodactyl 1. d4 g6 2. Nf3 Bg7 3. g3 c5 4. Bg2 Qa5+ d2d4 g7g6 g1f3 f8g7 g2g3 c7c5 f1g2 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq -
A40 Pterodactyl Defense: Queen Pterodactyl, Quiet Line 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. e3 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 e2e3 rnbqk1nr/pp1pppbp/6p1/2p5/2PP4/2N1P3/PP3PPP/R1BQKBNR b KQkq -
A40 Queen's Pawn Game 1. d4 d2d4 rnbqkbnr/pppppppp/8/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq -
A40 Queen's Pawn Game: Anglo-Slav Opening 1. d4 c6 2. c4 d6 d2d4 c7c6 c2c4 d7d6 rnbqkbnr/pp2pppp/2pp4/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A40 Queen's Pawn Game: Englund Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Qd5 f6 5. exf6 Nxf6 d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5 f7f6 e5f6 g8f6 r1b1kb1r/ppppq1pp/2n2n2/3Q4/8/5N2/PPP1PPPP/RNB1KB1R w KQkq -
A40 Queen's Pawn Game: London System, Pterodactyl Variation 1. d4 g6 2. Nf3 Bg7 3. Bf4 c5 4. c3 cxd4 5. cxd4 Qa5+ d2d4 g7g6 g1f3 f8g7 c1f4 c7c5 c2c3 c5d4 c3d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q7/3P1B2/5N2/PP2PPPP/RN1QKB1R w KQkq -
A40 Slav Indian: Kudischewitsch Gambit 1. d4 c6 2. Nf3 Nf6 3. c4 b5 d2d4 c7c6 g1f3 g8f6 c2c4 b7b5 rnbqkb1r/p2ppppp/2p2n2/1p6/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq -
A40 St. George Defense: Polish Variation 1. d4 b5 2. e4 a6 3. Nf3 Bb7 4. Bd3 e6 d2d4 b7b5 e2e4 a7a6 g1f3 c8b7 f1d3 e7e6 rn1qkbnr/1bpp1ppp/p3p3/1p6/3PP3/3B1N2/PPP2PPP/RNBQK2R w KQkq -
A40 Zaire Defense 1. d4 Nc6 2. d5 Nb8 3. e4 Nf6 4. e5 Ng8 d2d4 b8c6 d4d5 c6b8 e2e4 g8f6 e4e5 f6g8 rnbqkbnr/pppppppp/8/3PP3/8/8/PPP2PPP/RNBQKBNR w KQkq -
A40 Zukertort Defense: Kingside Variation 1. d4 g6 2. Nf3 Nh6 d2d4 g7g6 g1f3 g8h6 rnbqkb1r/pppppp1p/6pn/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A41 English Rat: Pounds Gambit 1. d4 d6 2. c4 e5 3. dxe5 Be6 d2d4 d7d6 c2c4 e7e5 d4e5 c8e6 rn1qkbnr/ppp2ppp/3pb3/4P3/2P5/8/PP2PPPP/RNBQKBNR w KQkq -
A41 King's Pawn Game: Maróczy Defense 1. d4 d6 2. e4 e5 d2d4 d7d6 e2e4 e7e5 rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
A41 Modern Defense 1. d4 g6 2. c4 Bg7 3. Nc3 d6 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 rnbqk1nr/ppp1ppbp/3p2p1/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -
A41 Old Indian Defense 1. d4 d6 2. c4 d2d4 d7d6 c2c4 rnbqkbnr/ppp1pppp/3p4/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -
A41 Queen's Pawn Game 1. d4 d6 d2d4 d7d6 rnbqkbnr/ppp1pppp/3p4/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A41 Rat Defense: English Rat 1. d4 d6 2. c4 e5 d2d4 d7d6 c2c4 e7e5 rnbqkbnr/ppp2ppp/3p4/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A41 Rat Defense: English Rat, Lisbon Gambit 1. d4 d6 2. c4 e5 3. dxe5 Nc6 d2d4 d7d6 c2c4 e7e5 d4e5 b8c6 r1bqkbnr/ppp2ppp/2np4/4P3/2P5/8/PP2PPPP/RNBQKBNR w KQkq -
A41 Robatsch Defense 1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. e4 Bg4 d2d4 d7d6 g1f3 g7g6 c2c4 f8g7 e2e4 c8g4 rn1qk1nr/ppp1ppbp/3p2p1/8/2PPP1b1/5N2/PP3PPP/RNBQKB1R w KQkq -
A41 Wade Defense 1. d4 d6 2. Nf3 Bg4 d2d4 d7d6 g1f3 c8g4 rn1qkbnr/ppp1pppp/3p4/8/3P2b1/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A41 Zukertort Opening: Wade Defense, Chigorin Plan 1. d4 d6 2. Nf3 Bg4 3. c4 Nd7 4. Qb3 Rb8 d2d4 d7d6 g1f3 c8g4 c2c4 b8d7 d1b3 a8b8 1r1qkbnr/pppnpppp/3p4/8/2PP2b1/1Q3N2/PP2PPPP/RNB1KB1R w KQk -
A42 Modern Defense: Averbakh System 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 rnbqk1nr/ppp1ppbp/3p2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq -
A42 Modern Defense: Kotov Variation 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 b8c6 r1bqk1nr/ppp1ppbp/2np2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq -
A42 Modern Defense: Randspringer Variation 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 f5 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 f7f5 rnbqk1nr/ppp1p1bp/3p2p1/5p2/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq -
A42 Pterodactyl Defense 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qa5+ 5. Nc3 d6 g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8a5 b1c3 d7d6 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N2N2/PP3PPP/R1BQKB1R w KQkq -
A42 Pterodactyl Defense: Central, Bogolubovia 1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 c5 5. Nge2 Qa5 d2d4 g7g6 c2c4 f8g7 e2e4 d7d6 b1c3 c7c5 g1e2 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N5/PP2NPPP/R1BQKB1R w KQkq -
A43 Benoni Defense: Benoni Gambit Accepted 1. d4 c5 2. dxc5 d2d4 c7c5 d4c5 rnbqkbnr/pp1ppppp/8/2P5/8/8/PPP1PPPP/RNBQKBNR b KQkq -
A43 Benoni Defense: Benoni Gambit, Schlenker Defense 1. d4 c5 2. dxc5 Na6 d2d4 c7c5 d4c5 b8a6 r1bqkbnr/pp1ppppp/n7/2P5/8/8/PPP1PPPP/RNBQKBNR w KQkq -
A43 Benoni Defense: Benoni-Indian Defense 1. d4 c5 2. d5 Nf6 d2d4 c7c5 d4d5 g8f6 rnbqkb1r/pp1ppppp/5n2/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq -
A43 Benoni Defense: Benoni-Indian Defense, Kingside Move Order 1. d4 Nf6 2. Nf3 c5 3. d5 d2d4 g8f6 g1f3 c7c5 d4d5 rnbqkb1r/pp1ppppp/5n2/2pP4/8/5N2/PPP1PPPP/RNBQKB1R b KQkq -
A43 Benoni Defense: Benoni-Staunton Gambit 1. d4 c5 2. d5 f5 3. e4 d2d4 c7c5 d4d5 f7f5 e2e4 rnbqkbnr/pp1pp1pp/8/2pP1p2/4P3/8/PPP2PPP/RNBQKBNR b KQkq -
A43 Benoni Defense: Cormorant Gambit 1. d4 c5 2. dxc5 b6 d2d4 c7c5 d4c5 b7b6 rnbqkbnr/p2ppppp/1p6/2P5/8/8/PPP1PPPP/RNBQKBNR w KQkq -
A43 Benoni Defense: French Benoni 1. e4 e6 2. d4 c5 3. d5 e2e4 e7e6 d2d4 c7c5 d4d5 rnbqkbnr/pp1p1ppp/4p3/2pP4/4P3/8/PPP2PPP/RNBQKBNR b KQkq -
A43 Benoni Defense: Hawk Variation 1. d4 Nf6 2. Nf3 c5 3. d5 c4 d2d4 g8f6 g1f3 c7c5 d4d5 c5c4 rnbqkb1r/pp1ppppp/5n2/3P4/2p5/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A43 Benoni Defense: Old Benoni 1. d4 c5 d2d4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A43 Benoni Defense: Old Benoni 1. d4 c5 2. d5 d2d4 c7c5 d4d5 rnbqkbnr/pp1ppppp/8/2pP4/8/8/PPP1PPPP/RNBQKBNR b KQkq -
A43 Benoni Defense: Old Benoni 1. d4 c5 2. d5 d6 d2d4 c7c5 d4d5 d7d6 rnbqkbnr/pp2pppp/3p4/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq -
A43 Benoni Defense: Old Benoni, Mujannah Formation 1. d4 c5 2. d5 f5 d2d4 c7c5 d4d5 f7f5 rnbqkbnr/pp1pp1pp/8/2pP1p2/8/8/PPP1PPPP/RNBQKBNR w KQkq -
A43 Benoni Defense: Old Benoni, Schmid Variation 1. d4 c5 2. d5 d6 3. Nc3 g6 d2d4 c7c5 d4d5 d7d6 b1c3 g7g6 rnbqkbnr/pp2pp1p/3p2p1/2pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq -
A43 Benoni Defense: Snail Variation 1. d4 c5 2. d5 Na6 d2d4 c7c5 d4d5 b8a6 r1bqkbnr/pp1ppppp/n7/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq -
A43 Benoni Defense: Woozle 1. d4 c5 2. d5 Nf6 3. Nc3 Qa5 d2d4 c7c5 d4d5 g8f6 b1c3 d8a5 rnb1kb1r/pp1ppppp/5n2/q1pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq -
A43 Benoni Defense: Zilbermints-Benoni Gambit 1. d4 c5 2. b4 d2d4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P1P4/8/P1P1PPPP/RNBQKBNR b KQkq -
A43 Benoni Defense: Zilbermints-Benoni Gambit 1. d4 c5 2. Nf3 cxd4 3. b4 d2d4 c7c5 g1f3 c5d4 b2b4 rnbqkbnr/pp1ppppp/8/8/1P1p4/5N2/P1P1PPPP/RNBQKB1R b KQkq -
A43 Benoni Defense: Zilbermints-Benoni Gambit, Tamarkin Countergambit 1. d4 c5 2. Nf3 cxd4 3. b4 e5 d2d4 c7c5 g1f3 c5d4 b2b4 e7e5 rnbqkbnr/pp1p1ppp/8/4p3/1P1p4/5N2/P1P1PPPP/RNBQKB1R w KQkq -
A43 Indian Defense: Pseudo-Benko 1. d4 Nf6 2. Nf3 c5 3. d5 b5 d2d4 g8f6 g1f3 c7c5 d4d5 b7b5 rnbqkb1r/p2ppppp/5n2/1ppP4/8/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A43 Queen's Pawn Game: Liedmann Gambit 1. d4 c5 2. c4 cxd4 3. e3 d2d4 c7c5 c2c4 c5d4 e2e3 rnbqkbnr/pp1ppppp/8/8/2Pp4/4P3/PP3PPP/RNBQKBNR b KQkq -
A44 Benoni Defense: Old Benoni 1. d4 c5 2. d5 e5 d2d4 c7c5 d4d5 e7e5 rnbqkbnr/pp1p1ppp/8/2pPp3/8/8/PPP1PPPP/RNBQKBNR w KQkq e6
A44 Benoni Defense: Semi-Benoni 1. d4 c5 2. d5 e5 3. e4 d6 d2d4 c7c5 d4d5 e7e5 e2e4 d7d6 rnbqkbnr/pp3ppp/3p4/2pPp3/4P3/8/PPP2PPP/RNBQKBNR w KQkq -
A45 Amazon Attack: Siberian Attack 1. d4 Nf6 2. Nc3 d5 3. Qd3 d2d4 g8f6 b1c3 d7d5 d1d3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2NQ4/PPP1PPPP/R1B1KBNR b KQkq -
A45 Blackmar-Diemer Gambit Declined: O'Kelly Defense 1. d4 Nf6 2. f3 d5 3. e4 dxe4 4. Nc3 c6 d2d4 g8f6 f2f3 d7d5 e2e4 d5e4 b1c3 c7c6 rnbqkb1r/pp2pppp/2p2n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq -
A45 Blackmar-Diemer Gambit Declined: Weinsbach Declination 1. d4 Nf6 2. Nc3 d5 3. f3 e6 4. e4 dxe4 d2d4 g8f6 b1c3 d7d5 f2f3 e7e6 e2e4 d5e4 rnbqkb1r/ppp2ppp/4pn2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq -
A45 Bronstein Gambit 1. d4 Nf6 2. g4 d2d4 g8f6 g2g4 rnbqkb1r/pppppppp/5n2/8/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq -
A45 Canard Opening 1. d4 Nf6 2. f4 d2d4 g8f6 f2f4 rnbqkb1r/pppppppp/5n2/8/3P1P2/8/PPP1P1PP/RNBQKBNR b KQkq -
A45 Indian Defense 1. d4 Nf6 d2d4 g8f6 rnbqkb1r/pppppppp/5n2/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A45 Indian Defense: Gedult Attack, Gedult Attack 1. d4 Nf6 2. f3 d5 3. g4 d2d4 g8f6 f2f3 d7d5 g2g4 rnbqkb1r/ppp1pppp/5n2/3p4/3P2P1/5P2/PPP1P2P/RNBQKBNR b KQkq -
A45 Indian Defense: Gibbins-Wiedenhagen Gambit Accepted 1. d4 Nf6 2. g4 Nxg4 d2d4 g8f6 g2g4 f6g4 rnbqkb1r/pppppppp/8/8/3P2n1/8/PPP1PP1P/RNBQKBNR w KQkq -
A45 Indian Defense: Gibbins-Wiedenhagen Gambit, Maltese Falcon 1. d4 Nf6 2. g4 Nxg4 3. f3 Nf6 4. e4 d2d4 g8f6 g2g4 f6g4 f2f3 g4f6 e2e4 rnbqkb1r/pppppppp/5n2/8/3PP3/5P2/PPP4P/RNBQKBNR b KQkq -
A45 Indian Defense: Gibbins-Wiedenhagen Gambit, Oshima Defense 1. d4 Nf6 2. g4 e5 d2d4 g8f6 g2g4 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/3P2P1/8/PPP1PP1P/RNBQKBNR w KQkq -
A45 Indian Defense: Gibbins-Wiedenhagen Gambit, Stummer Gambit 1. d4 Nf6 2. g4 Nxg4 3. e4 d6 4. Be2 Nf6 5. Nc3 d2d4 g8f6 g2g4 f6g4 e2e4 d7d6 f1e2 g4f6 b1c3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/2N5/PPP1BP1P/R1BQK1NR b KQkq -
A45 Indian Defense: Lazard Gambit 1. d4 Nf6 2. Nd2 e5 d2d4 g8f6 b1d2 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/3P4/8/PPPNPPPP/R1BQKBNR w KQkq -
A45 Indian Defense: Maddigan Gambit 1. d4 Nf6 2. Nc3 e5 d2d4 g8f6 b1c3 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq -
A45 Indian Defense: Omega Gambit 1. d4 Nf6 2. e4 d2d4 g8f6 e2e4 rnbqkb1r/pppppppp/5n2/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -
A45 Indian Defense: Omega Gambit, Arafat Gambit 1. d4 Nf6 2. e4 Nxe4 3. Bd3 Nf6 4. Bg5 d2d4 g8f6 e2e4 f6e4 f1d3 e4f6 c1g5 rnbqkb1r/pppppppp/5n2/6B1/3P4/3B4/PPP2PPP/RN1QK1NR b KQkq -
A45 Indian Defense: Paleface Attack, Blackmar-Diemer Gambit Deferred 1. d4 Nf6 2. f3 d5 3. e4 d2d4 g8f6 f2f3 d7d5 e2e4 rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq -
A45 Indian Defense: Pawn Push Variation 1. d4 Nf6 2. d5 d2d4 g8f6 d4d5 rnbqkb1r/pppppppp/5n2/3P4/8/8/PPP1PPPP/RNBQKBNR b KQkq -
A45 Indian Defense: Reversed Chigorin Defense 1. d4 Nf6 2. Nc3 c5 d2d4 g8f6 b1c3 c7c5 rnbqkb1r/pp1ppppp/5n2/2p5/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq -
A45 Indian Defense: Tartakower Attack 1. d4 Nf6 2. g3 d2d4 g8f6 g2g3 rnbqkb1r/pppppppp/5n2/8/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq -
A45 Paleface Attack 1. d4 Nf6 2. f3 d2d4 g8f6 f2f3 rnbqkb1r/pppppppp/5n2/8/3P4/5P2/PPP1P1PP/RNBQKBNR b KQkq -
A45 Queen's Pawn Game: Chigorin Variation 1. d4 Nf6 2. Nc3 d5 d2d4 g8f6 b1c3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq -
A45 Queen's Pawn Game: Veresov, Richter Attack 1. d4 Nf6 2. f3 d5 3. Nc3 d2d4 g8f6 f2f3 d7d5 b1c3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2N2P2/PPP1P1PP/R1BQKBNR b KQkq -
A45 Trompowsky Attack 1. d4 Nf6 2. Bg5 d2d4 g8f6 c1g5 rnbqkb1r/pppppppp/5n2/6B1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq -
A45 Trompowsky Attack: Borg Variation 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 g5 d2d4 g8f6 c1g5 f6e4 g5f4 g7g5 rnbqkb1r/pppppp1p/8/6p1/3PnB2/8/PPP1PPPP/RN1QKBNR w KQkq -
A45 Trompowsky Attack: Classical Defense 1. d4 Nf6 2. Bg5 e6 d2d4 g8f6 c1g5 e7e6 rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/8/PPP1PPPP/RN1QKBNR w KQkq -
A45 Trompowsky Attack: Classical Defense, Big Center Variation 1. d4 Nf6 2. Bg5 e6 3. e4 d2d4 g8f6 c1g5 e7e6 e2e4 rnbqkb1r/pppp1ppp/4pn2/6B1/3PP3/8/PPP2PPP/RN1QKBNR b KQkq -
A45 Trompowsky Attack: Edge Variation 1. d4 Nf6 2. Bg5 Ne4 3. Bh4 d2d4 g8f6 c1g5 f6e4 g5h4 rnbqkb1r/pppppppp/8/8/3Pn2B/8/PPP1PPPP/RN1QKBNR b KQkq -
A45 Trompowsky Attack: Edge Variation, Hergert Gambit 1. d4 Nf6 2. Bg5 Ne4 3. Bh4 c6 4. Nd2 Qa5 5. c3 Nxd2 6. Qxd2 d5 7. e4 d2d4 g8f6 c1g5 f6e4 g5h4 c7c6 b1d2 d8a5 c2c3 e4d2 d1d2 d7d5 e2e4 rnb1kb1r/pp2pppp/2p5/q2p4/3PP2B/2P5/PP1Q1PPP/R3KBNR b KQkq -
A45 Trompowsky Attack: Edge Variation, Hergert Gambit 1. d4 Nf6 2. Bg5 Ne4 3. Bh4 d5 4. f3 Nf6 5. Nc3 Bf5 6. e4 d2d4 g8f6 c1g5 f6e4 g5h4 d7d5 f2f3 e4f6 b1c3 c8f5 e2e4 rn1qkb1r/ppp1pppp/5n2/3p1b2/3PP2B/2N2P2/PPP3PP/R2QKBNR b KQkq -
A45 Trompowsky Attack: Poisoned Pawn Variation 1. d4 Nf6 2. Bg5 c5 3. d5 Qb6 4. Nc3 d2d4 g8f6 c1g5 c7c5 d4d5 d8b6 b1c3 rnb1kb1r/pp1ppppp/1q3n2/2pP2B1/8/2N5/PPP1PPPP/R2QKBNR b KQkq -
A45 Trompowsky Attack: Raptor Variation 1. d4 Nf6 2. Bg5 Ne4 3. h4 d2d4 g8f6 c1g5 f6e4 h2h4 rnbqkb1r/pppppppp/8/6B1/3Pn2P/8/PPP1PPP1/RN1QKBNR b KQkq -
A45 Trompowsky Attack: Raptor Variation, Hergert Gambit 1. d4 Nf6 2. Bg5 Ne4 3. h4 Nxg5 4. hxg5 e5 d2d4 g8f6 c1g5 f6e4 h2h4 e4g5 h4g5 e7e5 rnbqkb1r/pppp1ppp/8/4p1P1/3P4/8/PPP1PPP1/RN1QKBNR w KQkq -
A46 Döry Defense 1. d4 Nf6 2. Nf3 Ne4 d2d4 g8f6 g1f3 f6e4 rnbqkb1r/pppppppp/8/8/3Pn3/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A46 Indian Defense: Czech-Indian 1. d4 Nf6 2. Nf3 c6 d2d4 g8f6 g1f3 c7c6 rnbqkb1r/pp1ppppp/2p2n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A46 Indian Defense: Knights Variation 1. d4 Nf6 2. Nf3 d2d4 g8f6 g1f3 rnbqkb1r/pppppppp/5n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq -
A46 Indian Defense: Knights Variation, Alburt-Miles Variation 1. d4 Nf6 2. Nf3 a6 d2d4 g8f6 g1f3 a7a6 rnbqkb1r/1ppppppp/p4n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A46 Indian Defense: London System 1. d4 Nf6 2. Nf3 e6 3. Bf4 d2d4 g8f6 g1f3 e7e6 c1f4 rnbqkb1r/pppp1ppp/4pn2/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq -
A46 Indian Defense: Polish Variation 1. d4 Nf6 2. Nf3 b5 d2d4 g8f6 g1f3 b7b5 rnbqkb1r/p1pppppp/5n2/1p6/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A46 Indian Defense: Spielmann-Indian 1. d4 Nf6 2. Nf3 c5 d2d4 g8f6 g1f3 c7c5 rnbqkb1r/pp1ppppp/5n2/2p5/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A46 Indian Defense: Wade-Tartakower Defense 1. d4 Nf6 2. Nf3 d6 d2d4 g8f6 g1f3 d7d6 rnbqkb1r/ppp1pppp/3p1n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A46 Old Indian Defense: Czech Variation 1. d4 Nf6 2. Nf3 c6 3. c4 d6 d2d4 g8f6 g1f3 c7c6 c2c4 d7d6 rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq -
A46 Old Indian Defense: Tartakower-Indian 1. d4 Nf6 2. Nf3 d6 3. c4 Bg4 d2d4 g8f6 g1f3 d7d6 c2c4 c8g4 rn1qkb1r/ppp1pppp/3p1n2/8/2PP2b1/5N2/PP2PPPP/RNBQKB1R w KQkq -
A46 Queen's Pawn Game: Torre Attack, Breyer Variation 1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. e3 c5 5. c3 Qb6 d2d4 g8f6 g1f3 e7e6 c1g5 d7d5 e2e3 c7c5 c2c3 d8b6 rnb1kb1r/pp3ppp/1q2pn2/2pp2B1/3P4/2P1PN2/PP3PPP/RN1QKB1R w KQkq -
A46 Queen's Pawn Game: Veresov Attack, Classical Defense 1. d4 Nf6 2. Nf3 e6 3. Nc3 d5 4. Bg5 d2d4 g8f6 g1f3 e7e6 b1c3 d7d5 c1g5 rnbqkb1r/ppp2ppp/4pn2/3p2B1/3P4/2N2N2/PPP1PPPP/R2QKB1R b KQkq -
A46 Torre Attack 1. d4 Nf6 2. Nf3 e6 3. Bg5 d2d4 g8f6 g1f3 e7e6 c1g5 rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq -
A46 Torre Attack: Classical Defense, Nimzowitsch Variation 1. d4 Nf6 2. Nf3 e6 3. Bg5 h6 d2d4 g8f6 g1f3 e7e6 c1g5 h7h6 rnbqkb1r/pppp1pp1/4pn1p/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R w KQkq -
A46 Torre Attack: Classical Defense, Petrosian Gambit 1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 b6 5. d5 d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e3 b7b6 d4d5 rnbqkb1r/p2p1ppp/1p2pn2/2pP2B1/8/4PN2/PPP2PPP/RN1QKB1R b KQkq -
A46 Torre Attack: Wagner Gambit 1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e4 d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e4 rnbqkb1r/pp1p1ppp/4pn2/2p3B1/3PP3/5N2/PPP2PPP/RN1QKB1R b KQkq -
A46 Yusupov-Rubinstein System 1. d4 Nf6 2. Nf3 e6 3. e3 d2d4 g8f6 g1f3 e7e6 e2e3 rnbqkb1r/pppp1ppp/4pn2/8/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq -
A47 Indian Defense: Schnepper Gambit 1. d4 Nf6 2. Nf3 b6 3. c3 e5 d2d4 g8f6 g1f3 b7b6 c2c3 e7e5 rnbqkb1r/p1pp1ppp/1p3n2/4p3/3P4/2P2N2/PP2PPPP/RNBQKB1R w KQkq -
A47 Marienbad System 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 rn1qkb1r/pb1ppppp/1p3n2/2p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq -
A47 Queen's Indian Defense 1. d4 Nf6 2. Nf3 b6 d2d4 g8f6 g1f3 b7b6 rnbqkb1r/p1pppppp/1p3n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A47 Queen's Indian Defense: Marienbad System, Berg Variation 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. c4 cxd4 6. Qxd4 d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 c2c4 c5d4 d1d4 rn1qkb1r/pb1ppppp/1p3n2/8/2PQ4/5NP1/PP2PPBP/RNB1K2R b KQkq -
A48 East Indian Defense 1. d4 Nf6 2. Nf3 g6 d2d4 g8f6 g1f3 g7g6 rnbqkb1r/pppppp1p/5np1/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A48 London System 1. d4 Nf6 2. Nf3 g6 3. Bf4 d2d4 g8f6 g1f3 g7g6 c1f4 rnbqkb1r/pppppp1p/5np1/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq -
A48 Queen's Pawn Game: Barry Attack, Grünfeld Variation 1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Be2 d2d4 g8f6 g1f3 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 f1e2 rnbq1rk1/ppp1ppbp/5np1/3p4/3P1B2/2N1PN2/PPP1BPPP/R2QK2R b KQ -
A48 Queen's Pawn Game: Torre Attack, Grünfeld Variation, Main Line 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 O-O d2d4 g8f6 g1f3 g7g6 c1g5 f8g7 b1d2 d7d5 e2e3 e8g8 rnbq1rk1/ppp1ppbp/5np1/3p2B1/3P4/4PN2/PPPN1PPP/R2QKB1R w KQ -
A48 Torre Attack 1. d4 Nf6 2. Nf3 g6 3. Bg5 d2d4 g8f6 g1f3 g7g6 c1g5 rnbqkb1r/pppppp1p/5np1/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq -
A48 Torre Attack: Fianchetto Defense, Euwe Variation 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 c5 d2d4 g8f6 g1f3 g7g6 c1g5 f8g7 b1d2 c7c5 rnbqk2r/pp1pppbp/5np1/2p3B1/3P4/5N2/PPPNPPPP/R2QKB1R w KQkq -
A49 Indian Defense: Przepiorka Variation 1. d4 Nf6 2. Nf3 g6 3. g3 d2d4 g8f6 g1f3 g7g6 g2g3 rnbqkb1r/pppppp1p/5np1/8/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq -
A49 King's Indian Defense: Fianchetto Variation, Benjamin Defense 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 c6 7. Nc3 Qb6 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d6 c2c4 c7c6 b1c3 d8b6 rnb2rk1/pp2ppbp/1qpp1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -
A50 Indian Defense: Medusa Gambit 1. d4 Nf6 2. c4 g5 d2d4 g8f6 c2c4 g7g5 rnbqkb1r/pppppp1p/5n2/6p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A50 Indian Defense: Normal Variation 1. d4 Nf6 2. c4 d2d4 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -
A50 Indian Defense: Pyrenees Gambit 1. d4 Nf6 2. c4 b5 d2d4 g8f6 c2c4 b7b5 rnbqkb1r/p1pppppp/5n2/1p6/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A50 Mexican Defense 1. d4 Nf6 2. c4 Nc6 d2d4 g8f6 c2c4 b8c6 r1bqkb1r/pppppppp/2n2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A50 Mexican Defense: Horsefly Gambit 1. d4 Nf6 2. c4 Nc6 3. d5 Ne5 4. f4 d2d4 g8f6 c2c4 b8c6 d4d5 c6e5 f2f4 r1bqkb1r/pppppppp/5n2/3Pn3/2P2P2/8/PP2P1PP/RNBQKBNR b KQkq -
A50 Queen's Indian Accelerated 1. d4 Nf6 2. c4 b6 d2d4 g8f6 c2c4 b7b6 rnbqkb1r/p1pppppp/1p3n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A50 Slav Indian 1. d4 Nf6 2. c4 c6 d2d4 g8f6 c2c4 c7c6 rnbqkb1r/pp1ppppp/2p2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A51 Indian Defense: Budapest Defense 1. d4 Nf6 2. c4 e5 d2d4 g8f6 c2c4 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A51 Indian Defense: Budapest Defense, Fajarowicz Defense, Bonsdorf Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. a3 b6 d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 a2a3 b7b6 rnbqkb1r/p1pp1ppp/1p6/4P3/2P1n3/P7/1P2PPPP/RNBQKBNR w KQkq -
A51 Indian Defense: Budapest Defense, Fajarowicz Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq -
A51 Indian Defense: Budapest Defense, Fajarowicz-Steiner Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. Qc2 d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 d1c2 rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PPQ1PPPP/RNB1KBNR b KQkq -
A52 Indian Defense: Budapest Defense 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 rnbqkb1r/pppp1ppp/8/4P3/2P3n1/8/PP2PPPP/RNBQKBNR w KQkq -
A52 Indian Defense: Budapest Defense, Adler Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 g1f3 rnbqkb1r/pppp1ppp/8/4P3/2P3n1/5N2/PP2PPPP/RNBQKB1R b KQkq -
A52 Indian Defense: Budapest Defense, Alekhine Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 rnbqkb1r/pppp1ppp/8/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR b KQkq -
A52 Indian Defense: Budapest Defense, Alekhine Variation, Abonyi Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Nec6 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 g4e5 f2f4 e5c6 rnbqkb1r/pppp1ppp/2n5/8/2P1PP2/8/PP4PP/RNBQKBNR w KQkq -
A52 Indian Defense: Budapest Defense, Alekhine Variation, Tartakower Defense 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 d6 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 d7d6 rnbqkb1r/ppp2ppp/3p4/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR w KQkq -
A52 Indian Defense: Budapest Defense, Rubinstein Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 c1f4 rnbqkb1r/pppp1ppp/8/4P3/2P2Bn1/8/PP2PPPP/RN1QKBNR b KQkq -
A53 Old Indian Defense 1. d4 Nf6 2. c4 d6 d2d4 g8f6 c2c4 d7d6 rnbqkb1r/ppp1pppp/3p1n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A53 Old Indian Defense: Aged Gibbon Gambit 1. d4 Nf6 2. c4 d6 3. g4 d2d4 g8f6 c2c4 d7d6 g2g4 rnbqkb1r/ppp1pppp/3p1n2/8/2PP2P1/8/PP2PP1P/RNBQKBNR b KQkq -
A53 Old Indian Defense: Czech Variation 1. d4 Nf6 2. c4 d6 3. Nc3 c6 d2d4 g8f6 c2c4 d7d6 b1c3 c7c6 rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -
A53 Old Indian Defense: Janowski Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -
A53 Old Indian Defense: Janowski Variation, Fianchetto Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. Nf3 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 g1f3 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -
A53 Old Indian Defense: Janowski Variation, Fianchetto Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. g3 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 g2g3 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N3P1/PP2PP1P/R1BQKBNR b KQkq -
A53 Old Indian Defense: Janowski Variation, Grinberg Gambit 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. e4 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 e2e4 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq -
A53 Old Indian Defense: Janowski Variation, Main Line 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. f3 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 f2f3 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N2P2/PP2P1PP/R1BQKBNR b KQkq -
A54 Old Indian Defense: Dus-Khotimirsky Variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. e3 Nbd7 5. Bd3 d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 e2e3 b8d7 f1d3 r1bqkb1r/pppn1ppp/3p1n2/4p3/2PP4/2NBP3/PP3PPP/R1BQK1NR b KQkq -
A54 Old Indian Defense: Two Knights Variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 g1f3 rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -
A54 Old Indian Defense: Ukrainian Variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -
A55 Old Indian Defense: Normal Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 d2d4 g8f6 c2c4 d7d6 b1c3 b8d7 e2e4 e7e5 g1f3 r1bqkb1r/pppn1ppp/3p1n2/4p3/2PPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq -
A56 Benoni Defense 1. d4 Nf6 2. c4 c5 d2d4 g8f6 c2c4 c7c5 rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A56 Benoni Defense: Czech Benoni Defense 1. d4 Nf6 2. c4 c5 3. d5 e5 d2d4 g8f6 c2c4 c7c5 d4d5 e7e5 rnbqkb1r/pp1p1ppp/5n2/2pPp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq e6
A56 Benoni Defense: Hromádka System 1. d4 Nf6 2. c4 c5 3. d5 d6 d2d4 g8f6 c2c4 c7c5 d4d5 d7d6 rnbqkb1r/pp2pppp/3p1n2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq -
A56 Benoni Defense: King's Indian System 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 g6 d2d4 g8f6 c2c4 c7c5 d4d5 e7e5 b1c3 d7d6 e2e4 g7g6 rnbqkb1r/pp3p1p/3p1np1/2pPp3/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq -
A56 Benoni Defense: Weenink Variation 1. d4 Nf6 2. c4 c5 3. dxc5 e6 d2d4 g8f6 c2c4 c7c5 d4c5 e7e6 rnbqkb1r/pp1p1ppp/4pn2/2P5/2P5/8/PP2PPPP/RNBQKBNR w KQkq -
A56 Grünfeld Defense: Three Knights Variation, Burille Variation, Reversed Tarrasch 1. d4 Nf6 2. c4 c5 3. e3 g6 4. Nc3 Bg7 5. Nf3 O-O 6. Be2 cxd4 7. exd4 d5 8. O-O Nc6 d2d4 g8f6 c2c4 c7c5 e2e3 g7g6 b1c3 f8g7 g1f3 e8g8 f1e2 c5d4 e3d4 d7d5 e1g1 b8c6 r1bq1rk1/pp2ppbp/2n2np1/3p4/2PP4/2N2N2/PP2BPPP/R1BQ1RK1 w - -
A56 Vulture Defense 1. d4 Nf6 2. c4 c5 3. d5 Ne4 d2d4 g8f6 c2c4 c7c5 d4d5 f6e4 rnbqkb1r/pp1ppppp/8/2pP4/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq -
A57 Benko Gambit 1. d4 Nf6 2. c4 c5 3. d5 b5 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq -
A57 Benko Gambit Accepted 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 rnbqkb1r/3ppppp/p4n2/1PpP4/8/8/PP2PPPP/RNBQKBNR w KQkq -
A57 Benko Gambit Accepted: Dlugy Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. f3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 f2f3 rnbqkb1r/3ppppp/p4n2/1PpP4/8/5P2/PP2P1PP/RNBQKBNR b KQkq -
A57 Benko Gambit Accepted: Modern Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 e2e3 rnbqkb1r/3ppppp/p4n2/1PpP4/8/4P3/PP3PPP/RNBQKBNR b KQkq -
A57 Benko Gambit Accepted: Pawn Return Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5b6 rnbqkb1r/3ppppp/pP3n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq -
A57 Benko Gambit Declined: Bishop Attack 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Bg5 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c1g5 rnbqkb1r/p2ppppp/5n2/1ppP2B1/2P5/8/PP2PPPP/RN1QKBNR b KQkq -
A57 Benko Gambit Declined: Hjørring Countergambit 1. d4 Nf6 2. c4 c5 3. d5 b5 4. e4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 e2e4 rnbqkb1r/p2ppppp/5n2/1ppP4/2P1P3/8/PP3PPP/RNBQKBNR b KQkq -
A57 Benko Gambit Declined: Main Line 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 g1f3 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R b KQkq -
A57 Benko Gambit Declined: Pseudo-Sämisch 1. d4 Nf6 2. c4 c5 3. d5 b5 4. f3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 f2f3 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/5P2/PP2P1PP/RNBQKBNR b KQkq -
A57 Benko Gambit Declined: Quiet Line 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nd2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 b1d2 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP1NPPPP/R1BQKBNR b KQkq -
A57 Benko Gambit Declined: Sosonko Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. a4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 a2a4 rnbqkb1r/p2ppppp/5n2/1ppP4/P1P5/8/1P2PPPP/RNBQKBNR b KQkq -
A57 Benko Gambit: Mutkin Countergambit 1. d4 Nf6 2. c4 c5 3. d5 b5 4. g4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 g2g4 rnbqkb1r/p2ppppp/5n2/1ppP4/2P3P1/8/PP2PP1P/RNBQKBNR b KQkq -
A57 Benko Gambit: Nescafe Frappe Attack 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d6 8. Bc4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5 d7d6 f1c4 rnbqkb1r/4pppp/3p1n2/1NpP4/1pB1P3/8/PP3PPP/R1BQK1NR b KQkq -
A57 Benko Gambit: Zaitsev System 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 rnbqkb1r/3ppppp/p4n2/1PpP4/8/2N5/PP2PPPP/R1BQKBNR b KQkq -
A57 Benko Gambit: Zaitsev Variation, Nescafe Frappe Attack 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5 rnbqkb1r/3ppppp/5n2/1NpP4/1p2P3/8/PP3PPP/R1BQKBNR b KQkq -
A58 Benko Gambit Accepted: Central Storming Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. f4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 f2f4 rn1qkb1r/3ppp1p/b4np1/2pP4/5P2/2N5/PP2P1PP/R1BQKBNR b KQkq -
A58 Benko Gambit Accepted: Fianchetto Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. g3 d6 8. Bg2 Bg7 9. Nf3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 g2g3 d7d6 f1g2 f8g7 g1f3 rn1qk2r/4ppbp/b2p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R b KQkq -
A58 Benko Gambit Accepted: Fully Accepted Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 rnbqkb1r/3ppppp/P4n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq -
A58 Benko Gambit: Fianchetto Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 g2g3 rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq -
A58 Benko Gambit: Nd2 Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. Nd2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 f3d2 rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq -
A59 Benko Gambit 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. g3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 e2e4 a6f1 e1f1 d7d6 g2g3 rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N3P1/PP3P1P/R1BQ1KNR b kq -
A59 Benko Gambit Accepted: King Walk Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. Nf3 d6 8. e4 Bxf1 9. Kxf1 Bg7 10. g3 O-O 11. Kg2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 g1f3 d7d6 e2e4 a6f1 e1f1 f8g7 g2g3 e8g8 f1g2 rn1q1rk1/4ppbp/3p1np1/2pP4/4P3/2N2NP1/PP3PKP/R1BQ3R b - -
A59 Benko Gambit Accepted: Yugoslav 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 e2e4 rn1qkb1r/4pppp/b2p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq -
A59 Benko Gambit Accepted: Yugoslav 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. Nge2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 e2e4 a6f1 e1f1 d7d6 g1e2 rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N5/PP2NPPP/R1BQ1K1R b kq -
A60 Benoni Defense: Modern Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 rnbqkb1r/pp1p1ppp/4pn2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq -
A60 Benoni Defense: Modern Variation, Snake Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 Bd6 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 f8d6 rnbqk2r/pp1p1ppp/3b1n2/2pP4/8/2N5/PP2PPPP/R1BQKBNR w KQkq -
A61 Benoni Defense 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2N2/PP2PPPP/R1BQKB1R w KQkq -
A61 Benoni Defense: Fianchetto Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 g2g3 rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq -
A61 Benoni Defense: Knight's Tour Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f3d2 rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq -
A61 Benoni Defense: Uhlmann Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 c1g5 rnbqkb1r/pp3p1p/3p1np1/2pP2B1/8/2N2N2/PP2PPPP/R2QKB1R b KQkq -
A62 Benoni Defense: Fianchetto Variation 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 rnbq1rk1/pp3pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R w KQ -
A63 Benoni Defense: Fianchetto Variation, Hastings Defense 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Nbd7 d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 b8d7 r1bq1rk1/pp1n1pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQ1RK1 w - -
A64 Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O a6 10. a4 Nbd7 11. Nd2 Re8 d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 a7a6 a2a4 b8d7 f3d2 f8e8 r1bqr1k1/1p1n1pbp/p2p1np1/2pP4/P7/2N3P1/1P1NPPBP/R1BQ1RK1 w - -
A65 Benoni Defense: King's Pawn Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 rnbqkb1r/pp3ppp/3p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq -
A66 Benoni Defense: Mikenas Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. e5 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 e4e5 rnbqk2r/pp3pbp/3p1np1/2pPP3/5P2/2N5/PP4PP/R1BQKBNR b KQkq -
A66 Benoni Defense: Pawn Storm Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 rnbqkb1r/pp3p1p/3p1np1/2pP4/4PP2/2N5/PP4PP/R1BQKBNR b KQkq -
A67 Benoni Defense: Taimanov Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 f1b5 rnbqk2r/pp3pbp/3p1np1/1BpP4/4PP2/2N5/PP4PP/R1BQK1NR b KQkq -
A68 Benoni Defense: Four Pawns Attack 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 O-O d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 g1f3 e8g8 rnbq1rk1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP4PP/R1BQKB1R w KQ -
A69 Benoni Defense: Four Pawns Attack, Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. cxd5 Re8 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 e7e6 f1e2 e6d5 c4d5 f8e8 rnbqr1k1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP2B1PP/R1BQK2R w KQ -
A70 Benoni Defense: Classical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 rnbqkb1r/pp3p1p/3p1np1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R b KQkq -
A70 Benoni Defense: Classical Variation, New York Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. h3 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 h2h3 rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N1P/PP3PP1/R1BQKB1R b KQkq -
A70 Benoni Defense: Classical Variation, Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R b KQkq -
A71 Benoni Defense: Classical Variation, Averbakh-Grivas Attack 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Bg5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 c1g5 rnbqk2r/pp3pbp/3p1np1/2pP2B1/4P3/2N2N2/PP3PPP/R2QKB1R b KQkq -
A72 Benoni Defense: Classical 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R w KQ -
A73 Benoni Defense: Classical Variation, Main Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 b - -
A74 Benoni Defense: Classical Variation, Full Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O a6 10. a4 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4 rnbq1rk1/1p3pbp/p2p1np1/2pP4/P3P3/2N2N2/1P2BPPP/R1BQ1RK1 b - -
A75 Benoni Defense: Classical Variation, Argentine Counterattack 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O a6 10. a4 Bg4 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4 c8g4 rn1q1rk1/1p3pbp/p2p1np1/2pP4/P3P1b1/2N2N2/1P2BPPP/R1BQ1RK1 w - -
A76 Benoni Defense: Classical Variation, Czerniak Defense 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 w - -
A77 Benoni Defense: Classical Variation, Czerniak Defense, Tal Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 b - -
A78 Benoni Defense: Classical Variation, Czerniak Defense 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6 r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 w - -
A79 Benoni Defense: Classical Variation, Czerniak Defense 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 11. f3 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6 f2f3 r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N2P2/PP1NB1PP/R1BQ1RK1 b - -
A80 Blackmar-Diemer Gambit: Netherlands Variation 1. d4 f5 2. Nc3 d5 3. e4 dxe4 d2d4 f7f5 b1c3 d7d5 e2e4 d5e4 rnbqkbnr/ppp1p1pp/8/5p2/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq -
A80 Dutch Defense 1. d4 f5 d2d4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
A80 Dutch Defense: Alapin Variation 1. d4 f5 2. Qd3 d2d4 f7f5 d1d3 rnbqkbnr/ppppp1pp/8/5p2/3P4/3Q4/PPP1PPPP/RNB1KBNR b KQkq -
A80 Dutch Defense: Hevendehl Gambit 1. d4 f5 2. g4 e5 d2d4 f7f5 g2g4 e7e5 rnbqkbnr/pppp2pp/8/4pp2/3P2P1/8/PPP1PP1P/RNBQKBNR w KQkq -
A80 Dutch Defense: Hopton Attack 1. d4 f5 2. Bg5 d2d4 f7f5 c1g5 rnbqkbnr/ppppp1pp/8/5pB1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq -
A80 Dutch Defense: Janzen-Korchnoi Gambit 1. d4 f5 2. h3 Nf6 3. g4 d2d4 f7f5 h2h3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/7P/PPP1PP2/RNBQKBNR b KQkq -
A80 Dutch Defense: Kingfisher Gambit 1. d4 f5 2. Nc3 d5 3. e4 d2d4 f7f5 b1c3 d7d5 e2e4 rnbqkbnr/ppp1p1pp/8/3p1p2/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq -
A80 Dutch Defense: Korchnoi Attack 1. d4 f5 2. h3 d2d4 f7f5 h2h3 rnbqkbnr/ppppp1pp/8/5p2/3P4/7P/PPP1PPP1/RNBQKBNR b KQkq -
A80 Dutch Defense: Krejcik Gambit 1. d4 f5 2. g4 d2d4 f7f5 g2g4 rnbqkbnr/ppppp1pp/8/5p2/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq -
A80 Dutch Defense: Krejcik Gambit, Tate Gambit 1. d4 f5 2. g4 fxg4 3. e4 d5 4. Nc3 d2d4 f7f5 g2g4 f5g4 e2e4 d7d5 b1c3 rnbqkbnr/ppp1p1pp/8/3p4/3PP1p1/2N5/PPP2P1P/R1BQKBNR b KQkq -
A80 Dutch Defense: Manhattan Gambit, Anti-Classical Line 1. d4 f5 2. Qd3 e6 3. g4 d2d4 f7f5 d1d3 e7e6 g2g4 rnbqkbnr/pppp2pp/4p3/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq -
A80 Dutch Defense: Manhattan Gambit, Anti-Leningrad 1. d4 f5 2. Qd3 g6 3. g4 d2d4 f7f5 d1d3 g7g6 g2g4 rnbqkbnr/ppppp2p/6p1/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq -
A80 Dutch Defense: Manhattan Gambit, Anti-Modern 1. d4 f5 2. Qd3 d6 3. g4 d2d4 f7f5 d1d3 d7d6 g2g4 rnbqkbnr/ppp1p1pp/3p4/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq -
A80 Dutch Defense: Manhattan Gambit, Anti-Stonewall 1. d4 f5 2. Qd3 d5 3. g4 d2d4 f7f5 d1d3 d7d5 g2g4 rnbqkbnr/ppp1p1pp/8/3p1p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq -
A80 Dutch Defense: Omega-Isis Gambit 1. d4 f5 2. Nf3 e5 d2d4 f7f5 g1f3 e7e5 rnbqkbnr/pppp2pp/8/4pp2/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -
A80 Dutch Defense: Raphael Variation 1. d4 f5 2. Nc3 d2d4 f7f5 b1c3 rnbqkbnr/ppppp1pp/8/5p2/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq -
A80 Dutch Defense: Spielmann Gambit 1. d4 f5 2. Nc3 Nf6 3. g4 d2d4 f7f5 b1c3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/2N5/PPP1PP1P/R1BQKBNR b KQkq -
A80 Queen's Pawn Game: Veresov Attack, Dutch System 1. d4 f5 2. Nc3 d5 d2d4 f7f5 b1c3 d7d5 rnbqkbnr/ppp1p1pp/8/3p1p2/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq -
A81 Dutch Defense: Blackburne Variation 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nh3 d2d4 f7f5 g2g3 g8f6 f1g2 e7e6 g1h3 rnbqkb1r/pppp2pp/4pn2/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq -
A81 Dutch Defense: Fianchetto Attack 1. d4 f5 2. g3 d2d4 f7f5 g2g3 rnbqkbnr/ppppp1pp/8/5p2/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq -
A81 Dutch Defense: Leningrad Variation, Karlsbad Variation 1. d4 f5 2. g3 g6 3. Bg2 Bg7 4. Nh3 d2d4 f7f5 g2g3 g7g6 f1g2 f8g7 g1h3 rnbqk1nr/ppppp1bp/6p1/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq -
A81 Dutch Defense: Leningrad, Basman System 1. d4 f5 2. g3 c6 3. Bg2 g6 4. Nf3 Bg7 5. O-O Nh6 d2d4 f7f5 g2g3 c7c6 f1g2 g7g6 g1f3 f8g7 e1g1 g8h6 rnbqk2r/pp1pp1bp/2p3pn/5p2/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq -
A81 Dutch Defense: Semi-Leningrad Variation 1. d4 f5 2. g3 Nf6 3. Bg2 g6 d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 rnbqkb1r/ppppp2p/5np1/5p2/3P4/6P1/PPP1PPBP/RNBQK1NR w KQkq -
A82 Dutch Defense: Blackmar's Second Gambit 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. f3 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 f2f3 rnbqkb1r/ppppp1pp/5n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR b KQkq -
A82 Dutch Defense: Staunton Gambit 1. d4 f5 2. e4 d2d4 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -
A82 Dutch Defense: Staunton Gambit Accepted 1. d4 f5 2. e4 fxe4 d2d4 f7f5 e2e4 f5e4 rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPP2PPP/RNBQKBNR w KQkq -
A82 Dutch Defense: Staunton Gambit, American Attack 1. d4 f5 2. e4 fxe4 3. Nd2 d2d4 f7f5 e2e4 f5e4 b1d2 rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPPN1PPP/R1BQKBNR b KQkq -
A82 Dutch Defense: Staunton Gambit, Tartakower Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/8/3Pp1P1/2N5/PPP2P1P/R1BQKBNR b KQkq -
A82 French Defense: Franco-Hiva Gambit 1. d4 f5 2. e4 e6 d2d4 f7f5 e2e4 e7e6 rnbqkbnr/pppp2pp/4p3/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
A82 Rat Defense: Balogh Defense 1. e4 d6 2. d4 f5 e2e4 d7d6 d2d4 f7f5 rnbqkbnr/ppp1p1pp/3p4/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
A83 Dutch Defense: Staunton Gambit 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 rnbqkb1r/ppppp1pp/5n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR b KQkq -
A83 Dutch Defense: Staunton Gambit, Alekhine Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. h4 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 h2h4 rnbqkb1r/ppppp2p/5np1/6B1/3Pp2P/2N5/PPP2PP1/R2QKBNR b KQkq -
A83 Dutch Defense: Staunton Gambit, Chigorin Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 c6 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 c7c6 rnbqkb1r/pp1pp1pp/2p2n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq -
A83 Dutch Defense: Staunton Gambit, Lasker Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. f3 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 f2f3 rnbqkb1r/ppppp2p/5np1/6B1/3Pp3/2N2P2/PPP3PP/R2QKBNR b KQkq -
A83 Dutch Defense: Staunton Gambit, Nimzowitsch Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 b6 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 b7b6 rnbqkb1r/p1ppp1pp/1p3n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq -
A84 Dutch Defense 1. d4 f5 2. c4 d2d4 f7f5 c2c4 rnbqkbnr/ppppp1pp/8/5p2/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -
A84 Dutch Defense: Bladel Variation 1. d4 f5 2. c4 g6 3. Nc3 Nh6 d2d4 f7f5 c2c4 g7g6 b1c3 g8h6 rnbqkb1r/ppppp2p/6pn/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -
A84 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 d2d4 e7e6 c2c4 f7f5 rnbqkbnr/pppp2pp/4p3/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A84 Dutch Defense: Normal Variation 1. d4 f5 2. c4 Nf6 d2d4 f7f5 c2c4 g8f6 rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -
A84 Dutch Defense: Rubinstein Variation 1. d4 e6 2. c4 f5 3. Nc3 d2d4 e7e6 c2c4 f7f5 b1c3 rnbqkbnr/pppp2pp/4p3/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq -
A84 Horwitz Defense: Dutch Defense, Bellon Gambit 1. d4 e6 2. c4 f5 3. e4 d2d4 e7e6 c2c4 f7f5 e2e4 rnbqkbnr/pppp2pp/4p3/5p2/2PPP3/8/PP3PPP/RNBQKBNR b KQkq -
A85 Dutch Defense: Queen's Knight Variation 1. d4 f5 2. c4 Nf6 3. Nc3 d2d4 f7f5 c2c4 g8f6 b1c3 rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq -
A86 Dutch Defense: Fianchetto Variation 1. d4 f5 2. c4 Nf6 3. g3 d2d4 f7f5 c2c4 g8f6 g2g3 rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq -
A86 Dutch Defense: Hort-Antoshin System 1. c4 f5 2. g3 Nf6 3. Bg2 d6 4. Nc3 c6 5. d4 Qc7 c2c4 f7f5 g2g3 g8f6 f1g2 d7d6 b1c3 c7c6 d2d4 d8c7 rnb1kb1r/ppq1p1pp/2pp1n2/5p2/2PP4/2N3P1/PP2PPBP/R1BQK1NR w KQkq -
A86 Dutch Defense: Leningrad Variation 1. d4 f5 2. c4 Nf6 3. g3 g6 d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 rnbqkb1r/ppppp2p/5np1/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq -
A87 Dutch Defense: Leningrad Variation 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 f1g2 f8g7 g1f3 rnbqk2r/ppppp1bp/5np1/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R b KQkq -
A88 Dutch Defense: Leningrad Variation, Warsaw Variation 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 c6 d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 g1f3 f8g7 e1g1 e8g8 c2c4 d7d6 b1c3 c7c6 rnbq1rk1/pp2p1bp/2pp1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -
A89 Dutch Defense: Leningrad Variation, Matulovic Variation 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Nc6 d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 g1f3 f8g7 e1g1 e8g8 c2c4 d7d6 b1c3 b8c6 r1bq1rk1/ppp1p1bp/2np1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -
A90 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 rnbqkb1r/pppp2pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq -
A90 Dutch Defense: Nimzo-Dutch Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Bb4+ d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8b4 rnbqk2r/pppp2pp/4pn2/5p2/1bPP4/6P1/PP2PPBP/RNBQK1NR w KQkq -
A90 Dutch Defense: Nimzo-Dutch Variation, Alekhine Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Bb4+ 5. Bd2 Be7 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8b4 c1d2 b4e7 rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP1BPPBP/RN1QK1NR w KQkq -
A91 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR w KQkq -
A91 Dutch Defense: Classical Variation, Blackburne Attack 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nh3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1h3 rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6PN/PP2PPBP/RNBQK2R b KQkq -
A92 Dutch Defense: Alekhine Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O Ne4 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 f6e4 rnbq1rk1/ppppb1pp/4p3/5p2/2PPn3/5NP1/PP2PPBP/RNBQ1RK1 w - -
A92 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 rnbq1rk1/ppppb1pp/4pn2/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R w KQ -
A92 Dutch Defense: Stonewall 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. c4 d5 7. Nc3 d2d4 e7e6 g1f3 f7f5 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d5 b1c3 rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - -
A92 Dutch Defense: Stonewall Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - -
A93 Dutch Defense: Classical Variation, Stonewall Variation, Botvinnik Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. b3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 b2b3 rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/1P3NP1/P3PPBP/RNBQ1RK1 b - -
A94 Dutch Defense: Classical Variation, Stonewall Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. b3 c6 8. Ba3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 b2b3 c7c6 c1a3 rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/BP3NP1/P3PPBP/RN1Q1RK1 b - -
A95 Dutch Defense: Classical Variation, Stonewall Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nf3 Be7 6. O-O O-O 7. Nc3 c6 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 d7d5 g1f3 f8e7 e1g1 e8g8 b1c3 c7c6 rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -
A95 Dutch Defense: Stonewall, Chekhover Variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. Nc3 c6 8. Qc2 Qe8 9. Bg5 d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5 b1c3 c7c6 d1c2 d8e8 c1g5 rnb1qrk1/pp2b1pp/2p1pn2/3p1pB1/2PP4/2N2NP1/PPQ1PPBP/R4RK1 b - -
A96 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 rnbq1rk1/ppp1b1pp/3ppn2/5p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - -
A96 Dutch Defense: Classical Variation, Buenos Aires Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 a5 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 a7a5 rnbq1rk1/1pp1b1pp/3ppn2/p4p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -
A96 Dutch Defense: Classical Variation, Huisl Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Ne4 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 f6e4 rnbq1rk1/ppp1b1pp/3pp3/5p2/2PPn3/2N2NP1/PP2PPBP/R1BQ1RK1 w - -
A97 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -
A97 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Winter Variation 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. Re1 d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 f1e1 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQR1K1 b - -
A98 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Alatortsev-Lisitsyn Line 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. Qc2 d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 d1c2 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PPQ1PPBP/R1B2RK1 b - -
A99 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Modern Main Line 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. b3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 d8e8 b2b3 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/1PN2NP1/P3PPBP/R1BQ1RK1 b - -
B00 Barnes Defense 1. e4 f6 e2e4 f7f6 rnbqkbnr/ppppp1pp/5p2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Borg Defense 1. e4 g5 e2e4 g7g5 rnbqkbnr/pppppp1p/8/6p1/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Borg Defense: Borg Gambit 1. e4 g5 2. d4 Bg7 e2e4 g7g5 d2d4 f8g7 rnbqk1nr/ppppppbp/8/6p1/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Borg Defense: Langhorst Gambit 1. e4 g5 2. d4 e6 3. c3 c5 4. dxc5 b6 e2e4 g7g5 d2d4 e7e6 c2c3 c7c5 d4c5 b7b6 rnbqkbnr/p2p1p1p/1p2p3/2P3p1/4P3/2P5/PP3PPP/RNBQKBNR w KQkq -
B00 Borg Defense: Troon Gambit 1. e4 g5 2. d4 h6 3. h4 g4 e2e4 g7g5 d2d4 h7h6 h2h4 g5g4 rnbqkbnr/pppppp2/7p/8/3PP1pP/8/PPP2PP1/RNBQKBNR w KQkq -
B00 Borg Opening: Zilbermints Gambit 1. e4 g5 2. d4 e5 e2e4 g7g5 d2d4 e7e5 rnbqkbnr/pppp1p1p/8/4p1p1/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Carr Defense 1. e4 h6 e2e4 h7h6 rnbqkbnr/ppppppp1/7p/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Carr Defense: Zilbermints Gambit 1. e4 h6 2. d4 e5 e2e4 h7h6 d2d4 e7e5 rnbqkbnr/pppp1pp1/7p/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Duras Gambit 1. e4 f5 e2e4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Fried Fox Defense 1. e4 f6 2. d4 Kf7 e2e4 f7f6 d2d4 e8f7 rnbq1bnr/pppppkpp/5p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQ -
B00 Goldsmith Defense 1. e4 h5 e2e4 h7h5 rnbqkbnr/ppppppp1/8/7p/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Goldsmith Defense: Picklepuss Defense 1. e4 h5 2. d4 Nf6 e2e4 h7h5 d2d4 g8f6 rnbqkb1r/ppppppp1/5n2/7p/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Guatemala Defense 1. e4 b6 2. d4 Ba6 e2e4 b7b6 d2d4 c8a6 rn1qkbnr/p1pppppp/bp6/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Hippopotamus Defense 1. e4 Nh6 e2e4 g8h6 rnbqkb1r/pppppppp/7n/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Hippopotamus Defense 1. e4 Nh6 2. d4 g6 3. c4 f6 e2e4 g8h6 d2d4 g7g6 c2c4 f7f6 rnbqkb1r/ppppp2p/5ppn/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq -
B00 King's Pawn 1. e4 e2e4 rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq -
B00 King's Pawn Game: Nimzowitsch Defense 1. e4 Nc6 2. d4 e2e4 b8c6 d2d4 r1bqkbnr/pppppppp/2n5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -
B00 King's Pawn Game: Nimzowitsch Defense, Wheeler Gambit 1. e4 Nc6 2. b4 Nxb4 3. c3 Nc6 4. d4 e2e4 b8c6 b2b4 c6b4 c2c3 b4c6 d2d4 r1bqkbnr/pppppppp/2n5/8/3PP3/2P5/P4PPP/RNBQKBNR b KQkq -
B00 Lemming Defense 1. e4 Na6 e2e4 b8a6 r1bqkbnr/pppppppp/n7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Lion Defense: Lion's Jaw 1. e4 d6 2. d4 Nf6 3. f3 e2e4 d7d6 d2d4 g8f6 f2f3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq -
B00 Nimzowitsch Defense 1. e4 Nc6 e2e4 b8c6 r1bqkbnr/pppppppp/2n5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Breyer Variation 1. e4 Nc6 2. Nc3 Nf6 3. d4 e5 e2e4 b8c6 b1c3 g8f6 d2d4 e7e5 r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B00 Nimzowitsch Defense: Declined Variation 1. e4 Nc6 2. Nf3 e2e4 b8c6 g1f3 r1bqkbnr/pppppppp/2n5/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -
B00 Nimzowitsch Defense: El Columpio Defense 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 r1bqkb1r/pppppppp/2n5/4P3/6n1/5N2/PPPP1PPP/RNBQKB1R w KQkq -
B00 Nimzowitsch Defense: El Columpio Defense, El Columpio Gambit 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. e6 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 e5e6 r1bqkb1r/ppp1pppp/2npP2n/8/3P4/5N1P/PPP2PP1/RNBQKB1R b KQkq -
B00 Nimzowitsch Defense: El Columpio Defense, Exchange Variation 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. exd6 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 e5d6 r1bqkb1r/ppp1pppp/2nP3n/8/3P4/5N1P/PPP2PP1/RNBQKB1R b KQkq -
B00 Nimzowitsch Defense: El Columpio Defense, Pin Variation 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. Bb5 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 f1b5 r1bqkb1r/ppp1pppp/2np3n/1B2P3/3P4/5N1P/PPP2PP1/RNBQK2R b KQkq -
B00 Nimzowitsch Defense: Franco-Hiva Gambit 1. e4 Nc6 2. d4 e6 3. Nc3 f5 4. exf5 Nf6 e2e4 b8c6 d2d4 e7e6 b1c3 f7f5 e4f5 g8f6 r1bqkb1r/pppp2pp/2n1pn2/5P2/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq -
B00 Nimzowitsch Defense: Franco-Hiva Gambit 1. e4 Nc6 2. d4 e6 3. Nf3 f5 4. exf5 Nf6 e2e4 b8c6 d2d4 e7e6 g1f3 f7f5 e4f5 g8f6 r1bqkb1r/pppp2pp/2n1pn2/5P2/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq -
B00 Nimzowitsch Defense: Franco-Nimzowitsch Variation 1. e4 Nc6 2. Nf3 e6 e2e4 b8c6 g1f3 e7e6 r1bqkbnr/pppp1ppp/2n1p3/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -
B00 Nimzowitsch Defense: French Connection 1. e4 Nc6 2. Nc3 e6 e2e4 b8c6 b1c3 e7e6 r1bqkbnr/pppp1ppp/2n1p3/8/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -
B00 Nimzowitsch Defense: Hornung Gambit 1. e4 Nc6 2. d4 d5 3. Be3 e2e4 b8c6 d2d4 d7d5 c1e3 r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/4B3/PPP2PPP/RN1QKBNR b KQkq -
B00 Nimzowitsch Defense: Kennedy Variation 1. e4 Nc6 2. d4 e5 e2e4 b8c6 d2d4 e7e5 r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Kennedy Variation, Bielefelder Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 Bc5 e2e4 b8c6 d2d4 e7e5 d4e5 f8c5 r1bqk1nr/pppp1ppp/2n5/2b1P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Kennedy Variation, Hammer Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 f6 e2e4 b8c6 d2d4 e7e5 d4e5 f7f6 r1bqkbnr/pppp2pp/2n2p2/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Kennedy Variation, Herford Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 Qh4 e2e4 b8c6 d2d4 e7e5 d4e5 d8h4 r1b1kbnr/pppp1ppp/2n5/4P3/4P2q/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Kennedy Variation, Keres Attack 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. Nc3 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 b1c3 r1bqkbnr/pppp1ppp/8/4n3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq -
B00 Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation 1. e4 Nc6 2. d4 e5 3. d5 e2e4 b8c6 d2d4 e7e5 d4d5 r1bqkbnr/pppp1ppp/2n5/3Pp3/4P3/8/PPP2PPP/RNBQKBNR b KQkq -
B00 Nimzowitsch Defense: Kennedy Variation, Main Line 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. f4 Ng6 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 f2f4 e5g6 r1bqkbnr/pppp1ppp/6n1/8/4PP2/8/PPP3PP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Kennedy Variation, Paulsen Attack 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. Nf3 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 g1f3 r1bqkbnr/pppp1ppp/8/4n3/4P3/5N2/PPP2PPP/RNBQKB1R b KQkq -
B00 Nimzowitsch Defense: Kennedy Variation, Riemann Defense 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. f4 Nc6 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 f2f4 e5c6 r1bqkbnr/pppp1ppp/2n5/8/4PP2/8/PPP3PP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Kennedy Variation, de Smet Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 d6 e2e4 b8c6 d2d4 e7e5 d4e5 d7d6 r1bqkbnr/ppp2ppp/2np4/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Lean Variation 1. e4 Nc6 2. Nf3 f5 e2e4 b8c6 g1f3 f7f5 r1bqkbnr/ppppp1pp/2n5/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -
B00 Nimzowitsch Defense: Lean Variation, Colorado Counter Accepted 1. e4 Nc6 2. Nf3 f5 3. exf5 e2e4 b8c6 g1f3 f7f5 e4f5 r1bqkbnr/ppppp1pp/2n5/5P2/8/5N2/PPPP1PPP/RNBQKB1R b KQkq -
B00 Nimzowitsch Defense: Mikenas Variation 1. e4 Nc6 2. d4 d6 e2e4 b8c6 d2d4 d7d6 r1bqkbnr/ppp1pppp/2np4/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Neo-Mongoloid Defense 1. e4 Nc6 2. d4 f6 e2e4 b8c6 d2d4 f7f6 r1bqkbnr/ppppp1pp/2n2p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Pirc Connection 1. e4 Nc6 2. Nc3 g6 e2e4 b8c6 b1c3 g7g6 r1bqkbnr/pppppp1p/2n3p1/8/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -
B00 Nimzowitsch Defense: Pseudo-Spanish Variation 1. e4 Nc6 2. Bb5 e2e4 b8c6 f1b5 r1bqkbnr/pppppppp/2n5/1B6/4P3/8/PPPP1PPP/RNBQK1NR b KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation 1. e4 Nc6 2. d4 d5 e2e4 b8c6 d2d4 d7d5 r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Aachen Gambit 1. e4 Nc6 2. d4 d5 3. exd5 Nb4 e2e4 b8c6 d2d4 d7d5 e4d5 c6b4 r1bqkbnr/ppp1pppp/8/3P4/1n1P4/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Advance Variation 1. e4 Nc6 2. d4 d5 3. e5 e2e4 b8c6 d2d4 d7d5 e4e5 r1bqkbnr/ppp1pppp/2n5/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation 1. e4 Nc6 2. d4 d5 3. Nc3 e2e4 b8c6 d2d4 d7d5 b1c3 r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Brandics Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 a6 e2e4 b8c6 d2d4 d7d5 b1c3 a7a6 r1bqkbnr/1pp1pppp/p1n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Erben Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 g6 e2e4 b8c6 d2d4 d7d5 b1c3 g7g6 r1bqkbnr/ppp1pp1p/2n3p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Heinola-Deppe Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 e5 e2e4 b8c6 d2d4 d7d5 b1c3 e7e5 r1bqkbnr/ppp2ppp/2n5/3pp3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Nimzowitsch Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 Ne5 e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 c6e5 r1bqkbnr/ppp1pppp/8/3Pn3/4p3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Richter Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 Nb8 5. f3 e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 c6b8 f2f3 rnbqkbnr/ppp1pppp/8/3P4/4p3/2N2P2/PPP3PP/R1BQKBNR b KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Vehre Variation 1. e4 Nc6 2. d4 d5 3. Nc3 Nf6 e2e4 b8c6 d2d4 d7d5 b1c3 g8f6 r1bqkb1r/ppp1pppp/2n2n2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Exchange Variation 1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 e2e4 b8c6 d2d4 d7d5 e4d5 d8d5 r1b1kbnr/ppp1pppp/2n5/3q4/3P4/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Nimzowitsch Defense: Scandinavian Variation, Exchange Variation, Marshall Gambit 1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nc3 e2e4 b8c6 d2d4 d7d5 e4d5 d8d5 b1c3 r1b1kbnr/ppp1pppp/2n5/3q4/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq -
B00 Nimzowitsch Defense: Wheeler Gambit 1. e4 Nc6 2. b4 e2e4 b8c6 b2b4 r1bqkbnr/pppppppp/2n5/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq -
B00 Nimzowitsch Defense: Williams Variation 1. e4 Nc6 2. Nf3 d6 e2e4 b8c6 g1f3 d7d6 r1bqkbnr/ppp1pppp/2np4/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -
B00 Nimzowitsch Defense: Woodchuck Variation 1. e4 Nc6 2. d4 a6 e2e4 b8c6 d2d4 a7a6 r1bqkbnr/1ppppppp/p1n5/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Owen Defense 1. e4 b6 e2e4 b7b6 rnbqkbnr/p1pppppp/1p6/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Owen Defense: Hekili-Loa Gambit 1. e4 b6 2. d4 c5 3. dxc5 Nc6 e2e4 b7b6 d2d4 c7c5 d4c5 b8c6 r1bqkbnr/p2ppppp/1pn5/2P5/4P3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Owen Defense: Matovinsky Gambit 1. e4 b6 2. d4 Bb7 3. Bd3 f5 4. exf5 Bxg2 5. Qh5+ g6 e2e4 b7b6 d2d4 c8b7 f1d3 f7f5 e4f5 b7g2 d1h5 g7g6 rn1qkbnr/p1ppp2p/1p4p1/5P1Q/3P4/3B4/PPP2PbP/RNB1K1NR w KQkq -
B00 Owen Defense: Naselwaus Gambit 1. e4 b6 2. d4 Bb7 3. Bg5 e2e4 b7b6 d2d4 c8b7 c1g5 rn1qkbnr/pbpppppp/1p6/6B1/3PP3/8/PPP2PPP/RN1QKBNR b KQkq -
B00 Owen Defense: Smith Gambit 1. e4 b6 2. d4 Bb7 3. Nf3 e2e4 b7b6 d2d4 c8b7 g1f3 rn1qkbnr/pbpppppp/1p6/8/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq -
B00 Owen Defense: Unicorn Variation 1. e4 f6 2. d4 b6 3. c4 Bb7 e2e4 f7f6 d2d4 b7b6 c2c4 c8b7 rn1qkbnr/pbppp1pp/1p3p2/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq -
B00 Owen Defense: Wind Gambit 1. e4 b6 2. d4 Bb7 3. f3 e5 e2e4 b7b6 d2d4 c8b7 f2f3 e7e5 rn1qkbnr/pbpp1ppp/1p6/4p3/3PP3/5P2/PPP3PP/RNBQKBNR w KQkq -
B00 Pirc Defense 1. e4 d6 e2e4 d7d6 rnbqkbnr/ppp1pppp/3p4/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Pirc Defense 1. e4 d6 2. d4 e2e4 d7d6 d2d4 rnbqkbnr/ppp1pppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -
B00 Pirc Defense 1. e4 d6 2. d4 Nf6 e2e4 d7d6 d2d4 g8f6 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Pirc Defense: Roscher Gambit 1. e4 d6 2. d4 Nf6 3. Nf3 e2e4 d7d6 d2d4 g8f6 g1f3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq -
B00 Rat Defense: Antal Defense 1. e4 d6 2. d4 Nd7 e2e4 d7d6 d2d4 b8d7 r1bqkbnr/pppnpppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Rat Defense: Fuller Gambit 1. e4 d6 2. f4 d5 3. exd5 Nf6 e2e4 d7d6 f2f4 d6d5 e4d5 g8f6 rnbqkb1r/ppp1pppp/5n2/3P4/5P2/8/PPPP2PP/RNBQKBNR w KQkq -
B00 Rat Defense: Harmonist 1. e4 d6 2. f4 e2e4 d7d6 f2f4 rnbqkbnr/ppp1pppp/3p4/8/4PP2/8/PPPP2PP/RNBQKBNR b KQkq -
B00 Rat Defense: Petruccioli Attack 1. e4 d6 2. h4 e2e4 d7d6 h2h4 rnbqkbnr/ppp1pppp/3p4/8/4P2P/8/PPPP1PP1/RNBQKBNR b KQkq -
B00 Rat Defense: Spike Attack 1. e4 d6 2. g4 e2e4 d7d6 g2g4 rnbqkbnr/ppp1pppp/3p4/8/4P1P1/8/PPPP1P1P/RNBQKBNR b KQkq -
B00 St. George Defense 1. e4 a6 e2e4 a7a6 rnbqkbnr/1ppppppp/p7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 St. George Defense: San Jorge Variation 1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 d6 5. O-O g6 6. c3 Bg7 e2e4 a7a6 d2d4 b7b5 g1f3 c8b7 f1d3 d7d6 e1g1 g7g6 c2c3 f8g7 rn1qk1nr/1bp1ppbp/p2p2p1/1p6/3PP3/2PB1N2/PP3PPP/RNBQ1RK1 w kq -
B00 St. George Defense: Zilbermints Gambit 1. e4 a6 2. d4 e5 e2e4 a7a6 d2d4 e7e5 rnbqkbnr/1ppp1ppp/p7/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Van Geet Opening: Berlin Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 r1bqkbnr/ppp1pppp/2n5/3P4/4p3/2N5/PPP2PPP/R1BQKBNR b KQkq -
B00 Ware Defense 1. e4 a5 e2e4 a7a5 rnbqkbnr/1ppppppp/8/p7/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B00 Ware Defense: Snagglepuss Defense 1. e4 a5 2. d4 Nc6 e2e4 a7a5 d2d4 b8c6 r1bqkbnr/1ppppppp/2n5/p7/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B00 Zukertort Defense: Sicilian Knight Variation 1. e4 Na6 2. Nf3 c5 e2e4 b8a6 g1f3 c7c5 r1bqkbnr/pp1ppppp/n7/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -
B01 Scandinavian Defense 1. e4 d5 e2e4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense 1. e4 d5 2. b3 e2e4 d7d5 b2b3 rnbqkbnr/ppp1pppp/8/3p4/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq -
B01 Scandinavian Defense: Anderssen Counterattack 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq -
B01 Scandinavian Defense: Anderssen Counterattack, Collijn Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 Bg4 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3 c8g4 rn2kbnr/ppp2ppp/8/q3p3/3P2b1/2N2N2/PPP2PPP/R1BQKB1R w KQkq -
B01 Scandinavian Defense: Anderssen Counterattack, Goteborg System 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3 rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N2N2/PPP2PPP/R1BQKB1R b KQkq -
B01 Scandinavian Defense: Anderssen Counterattack, Orthodox Attack 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. dxe5 Nc6 6. Nf3 Bb4 7. Bd2 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 d4e5 b8c6 g1f3 f8b4 c1d2 r1b1k1nr/ppp2ppp/2n5/q3P3/1b6/2N2N2/PPPB1PPP/R2QKB1R b KQkq -
B01 Scandinavian Defense: Blackburne Gambit 1. e4 d5 2. exd5 c6 3. dxc6 Nxc6 e2e4 d7d5 e4d5 c7c6 d5c6 b8c6 r1bqkbnr/pp2pppp/2n5/8/8/8/PPPP1PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Blackburne-Kloosterboer Gambit 1. e4 d5 2. exd5 c6 e2e4 d7d5 e4d5 c7c6 rnbqkbnr/pp2pppp/2p5/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Boehnke Gambit 1. e4 d5 2. exd5 e5 3. dxe6 Bxe6 e2e4 d7d5 e4d5 e7e5 d5e6 c8e6 rn1qkbnr/ppp2ppp/4b3/8/8/8/PPPP1PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Bronstein Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 a6 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 g8f6 g1f3 a7a6 rnb1kb1r/1pp1pppp/p2q1n2/8/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq -
B01 Scandinavian Defense: Classical Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5 rn2kb1r/ppp1pppp/5n2/q4b2/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq -
B01 Scandinavian Defense: Grünfeld Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Ne5 c6 7. g4 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5 f3e5 c7c6 g2g4 rn2kb1r/pp2pppp/2p2n2/q3Nb2/3P2P1/2N5/PPP2P1P/R1BQKB1R b KQkq -
B01 Scandinavian Defense: Gubinsky-Melts Defense 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 rnb1kbnr/ppp1pppp/3q4/8/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -
B01 Scandinavian Defense: Icelandic-Palme Gambit 1. e4 d5 2. exd5 Nf6 3. c4 e6 e2e4 d7d5 e4d5 g8f6 c2c4 e7e6 rnbqkb1r/ppp2ppp/4pn2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Kiel Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb4 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 c2c4 d5b4 rnbqkb1r/ppp1pppp/8/8/1nPP4/8/PP3PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Kloosterboer Gambit 1. e4 d5 2. exd5 c6 3. dxc6 e5 e2e4 d7d5 e4d5 c7c6 d5c6 e7e5 rnbqkbnr/pp3ppp/2P5/4p3/8/8/PPPP1PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Kádas Gambit 1. e4 d5 2. exd5 Nf6 3. d4 c6 4. dxc6 e5 e2e4 d7d5 e4d5 g8f6 d2d4 c7c6 d5c6 e7e5 rnbqkb1r/pp3ppp/2P2n2/4p3/3P4/8/PPP2PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Lasker Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8g4 h2h3 rn2kb1r/ppp1pppp/5n2/q7/3P2b1/2N2N1P/PPP2PP1/R1BQKB1R b KQkq -
B01 Scandinavian Defense: Main Line 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 rnb1kbnr/ppp1pppp/8/q7/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -
B01 Scandinavian Defense: Main Line, Leonhardt Gambit 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 b2b4 rnb1kbnr/ppp1pppp/8/q7/1P6/2N5/P1PP1PPP/R1BQKBNR b KQkq -
B01 Scandinavian Defense: Main Line, Mieses Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 rnb1kb1r/ppp1pppp/5n2/q7/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq -
B01 Scandinavian Defense: Marshall Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 rnbqkb1r/ppp1pppp/8/3n4/3P4/8/PPP2PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Mieses-Kotroc Variation 1. e4 d5 2. exd5 Qxd5 e2e4 d7d5 e4d5 d8d5 rnb1kbnr/ppp1pppp/8/3q4/8/8/PPPP1PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Modern Variation 1. e4 d5 2. exd5 Nf6 e2e4 d7d5 e4d5 g8f6 rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Modern Variation 1. e4 d5 2. exd5 Nf6 3. d4 e2e4 d7d5 e4d5 g8f6 d2d4 rnbqkb1r/ppp1pppp/5n2/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq -
B01 Scandinavian Defense: Modern Variation, Gipslis Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 g1f3 c8g4 rn1qkb1r/ppp1pppp/8/3n4/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq -
B01 Scandinavian Defense: Modern Variation, Wing Gambit 1. e4 d5 2. exd5 Nf6 3. d4 g6 4. c4 b5 e2e4 d7d5 e4d5 g8f6 d2d4 g7g6 c2c4 b7b5 rnbqkb1r/p1p1pp1p/5np1/1p1P4/2PP4/8/PP3PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Panov Transfer 1. e4 d5 2. exd5 Nf6 3. c4 c6 e2e4 d7d5 e4d5 g8f6 c2c4 c7c6 rnbqkb1r/pp2pppp/2p2n2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Portuguese Variation 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 e2e4 d7d5 e4d5 g8f6 d2d4 c8g4 rn1qkb1r/ppp1pppp/5n2/3P4/3P2b1/8/PPP2PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Portuguese Variation, Portuguese Gambit 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Bb5+ Nbd7 5. f3 Bf5 e2e4 d7d5 e4d5 g8f6 d2d4 c8g4 f1b5 b8d7 f2f3 g4f5 r2qkb1r/pppnpppp/5n2/1B1P1b2/3P4/5P2/PPP3PP/RNBQK1NR w KQkq -
B01 Scandinavian Defense: Richter Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 g6 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 g1f3 g7g6 rnbqkb1r/ppp1pp1p/6p1/3n4/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq -
B01 Scandinavian Defense: Richter Variation 1. e4 d5 2. exd5 Nf6 3. d4 g6 e2e4 d7d5 e4d5 g8f6 d2d4 g7g6 rnbqkb1r/ppp1pp1p/5np1/3P4/3P4/8/PPP2PPP/RNBQKBNR w KQkq -
B01 Scandinavian Defense: Schiller-Pytel Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 c6 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 c7c6 rnb1kbnr/pp2pppp/2pq4/8/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq -
B01 Scandinavian Defense: Schiller-Pytel Variation, Modern Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Bc4 c6 6. Nge2 Bf5 7. Bf4 Qb4 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 g8f6 f1c4 c7c6 g1e2 c8f5 c1f4 d6b4 rn2kb1r/pp2pppp/2p2n2/5b2/1qBP1B2/2N5/PPP1NPPP/R2QK2R w KQkq -
B01 Scandinavian Defense: Zilbermints Gambit 1. e4 d5 2. b4 e2e4 d7d5 b2b4 rnbqkbnr/ppp1pppp/8/3p4/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq -
B01 Van Geet Opening: Grünfeld Defense 1. e4 d5 2. Nc3 dxe4 3. Nxe4 e5 e2e4 d7d5 b1c3 d5e4 c3e4 e7e5 rnbqkbnr/ppp2ppp/8/4p3/4N3/8/PPPP1PPP/R1BQKBNR w KQkq -
B02 Alekhine Defense 1. e4 Nf6 e2e4 g8f6 rnbqkb1r/pppppppp/5n2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B02 Alekhine Defense: Brooklyn Variation 1. e4 Nf6 2. e5 Ng8 e2e4 g8f6 e4e5 f6g8 rnbqkbnr/pppppppp/8/4P3/8/8/PPPP1PPP/RNBQKBNR w KQkq -
B02 Alekhine Defense: Brooklyn Variation, Everglades Variation 1. e4 Nf6 2. e5 Ng8 3. d4 f5 e2e4 g8f6 e4e5 f6g8 d2d4 f7f5 rnbqkbnr/ppppp1pp/8/4Pp2/3P4/8/PPP2PPP/RNBQKBNR w KQkq f6
B02 Alekhine Defense: Buckley Attack 1. e4 Nf6 2. e5 Nd5 3. Na3 e2e4 g8f6 e4e5 f6d5 b1a3 rnbqkb1r/pppppppp/8/3nP3/8/N7/PPPP1PPP/R1BQKBNR b KQkq -
B02 Alekhine Defense: Hunt Variation, Lasker Simul Gambit 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 rnbqkb1r/pppp1ppp/4p3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR b KQkq -
B02 Alekhine Defense: Hunt Variation, Matsukevich Gambit 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 Nxc3 6. dxc3 d6 7. Bg5 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 b1c3 d5c3 d2c3 d7d6 c1g5 rnbqkb1r/ppp1pppp/3p4/2P1P1B1/8/2P5/PP3PPP/R2QKBNR b KQkq -
B02 Alekhine Defense: Hunt Variation, Mikenas Gambit 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 7. Nxd5 exd5 8. Bxd5 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6 c3d5 e6d5 c4d5 rnbqkb1r/ppp2ppp/3p4/2PBP3/8/8/PP1P1PPP/R1BQK1NR b KQkq -
B02 Alekhine Defense: Kmoch Variation 1. e4 Nf6 2. e5 Nd5 3. Bc4 Nb6 4. Bb3 c5 5. d3 e2e4 g8f6 e4e5 f6d5 f1c4 d5b6 c4b3 c7c5 d2d3 rnbqkb1r/pp1ppppp/1n6/2p1P3/8/1B1P4/PPP2PPP/RNBQK1NR b KQkq -
B02 Alekhine Defense: Krejcik Variation 1. e4 Nf6 2. Bc4 e2e4 g8f6 f1c4 rnbqkb1r/pppppppp/5n2/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq -
B02 Alekhine Defense: Krejcik Variation, Krejcik Gambit 1. e4 Nf6 2. Bc4 Nxe4 3. Bxf7+ e2e4 g8f6 f1c4 f6e4 c4f7 rnbqkb1r/pppppBpp/8/8/4n3/8/PPPP1PPP/RNBQK1NR b KQkq -
B02 Alekhine Defense: Maróczy Variation 1. e4 Nf6 2. d3 e2e4 g8f6 d2d3 rnbqkb1r/pppppppp/5n2/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq -
B02 Alekhine Defense: Mokele Mbembe 1. e4 Nf6 2. e5 Ne4 e2e4 g8f6 e4e5 f6e4 rnbqkb1r/pppppppp/8/4P3/4n3/8/PPPP1PPP/RNBQKBNR w KQkq -
B02 Alekhine Defense: Mokele Mbembe, Modern Line 1. e4 Nf6 2. e5 Ne4 3. d4 f6 e2e4 g8f6 e4e5 f6e4 d2d4 f7f6 rnbqkb1r/ppppp1pp/5p2/4P3/3Pn3/8/PPP2PPP/RNBQKBNR w KQkq -
B02 Alekhine Defense: Mokele Mbembe, Vavra Defense 1. e4 Nf6 2. e5 Ne4 3. d4 e6 e2e4 g8f6 e4e5 f6e4 d2d4 e7e6 rnbqkb1r/pppp1ppp/4p3/4P3/3Pn3/8/PPP2PPP/RNBQKBNR w KQkq -
B02 Alekhine Defense: Normal Variation 1. e4 Nf6 2. e5 Nd5 e2e4 g8f6 e4e5 f6d5 rnbqkb1r/pppppppp/8/3nP3/8/8/PPPP1PPP/RNBQKBNR w KQkq -
B02 Alekhine Defense: Scandinavian Variation 1. e4 Nf6 2. Nc3 d5 e2e4 g8f6 b1c3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -
B02 Alekhine Defense: Scandinavian Variation, Geschev Gambit 1. e4 Nf6 2. Nc3 d5 3. exd5 c6 e2e4 g8f6 b1c3 d7d5 e4d5 c7c6 rnbqkb1r/pp2pppp/2p2n2/3P4/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -
B02 Alekhine Defense: Scandinavian Variation, Myers Gambit 1. e4 Nf6 2. Nc3 d5 3. d3 dxe4 4. Bg5 e2e4 g8f6 b1c3 d7d5 d2d3 d5e4 c1g5 rnbqkb1r/ppp1pppp/5n2/6B1/4p3/2NP4/PPP2PPP/R2QKBNR b KQkq -
B02 Alekhine Defense: Spielmann Gambit 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. e6 e2e4 g8f6 b1c3 d7d5 e4e5 f6d7 e5e6 rnbqkb1r/pppnpppp/4P3/3p4/8/2N5/PPPP1PPP/R1BQKBNR b KQkq -
B02 Alekhine Defense: Steiner Variation 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. b3 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 b2b3 rnbqkb1r/pppppppp/1n6/4P3/2P5/1P6/P2P1PPP/RNBQKBNR b KQkq -
B02 Alekhine Defense: Sämisch Attack 1. e4 Nf6 2. e5 Nd5 3. Nc3 e2e4 g8f6 e4e5 f6d5 b1c3 rnbqkb1r/pppppppp/8/3nP3/8/2N5/PPPP1PPP/R1BQKBNR b KQkq -
B02 Alekhine Defense: The Squirrel 1. e4 Nf6 2. e5 Nd5 3. c4 Nf4 e2e4 g8f6 e4e5 f6d5 c2c4 d5f4 rnbqkb1r/pppppppp/8/4P3/2P2n2/8/PP1P1PPP/RNBQKBNR w KQkq -
B02 Alekhine Defense: Two Pawn Attack 1. e4 Nf6 2. e5 Nd5 3. c4 e2e4 g8f6 e4e5 f6d5 c2c4 rnbqkb1r/pppppppp/8/3nP3/2P5/8/PP1P1PPP/RNBQKBNR b KQkq -
B02 Alekhine Defense: Two Pawn Attack, Lasker Variation 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 rnbqkb1r/pppppppp/1n6/2P1P3/8/8/PP1P1PPP/RNBQKBNR b KQkq -
B02 Alekhine Defense: Two Pawns Attack, Mikenas Variation 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6 rnbqkb1r/ppp2ppp/3pp3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR w KQkq -
B02 Alekhine Defense: Welling Variation 1. e4 Nf6 2. e5 Nd5 3. b3 e2e4 g8f6 e4e5 f6d5 b2b3 rnbqkb1r/pppppppp/8/3nP3/8/1P6/P1PP1PPP/RNBQKBNR b KQkq -
B02 English Opening: Achilles-Omega Gambit 1. e4 Nf6 2. c4 e2e4 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq -
B02 King's Pawn Game: Clam Variation, Radisch Gambit 1. e4 Nf6 2. d3 e5 3. f4 Bc5 e2e4 g8f6 d2d3 e7e5 f2f4 f8c5 rnbqk2r/pppp1ppp/5n2/2b1p3/4PP2/3P4/PPP3PP/RNBQKBNR w KQkq -
B03 Alekhine Defense 1. e4 Nf6 2. e5 Nd5 3. d4 e2e4 g8f6 e4e5 f6d5 d2d4 rnbqkb1r/pppppppp/8/3nP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq -
B03 Alekhine Defense 1. e4 Nf6 2. e5 Nd5 3. d4 d6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq -
B03 Alekhine Defense 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 rnbqkb1r/ppp1pppp/3p4/3nP3/2PP4/8/PP3PPP/RNBQKBNR b KQkq -
B03 Alekhine Defense: Balogh Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 f1c4 rnbqkb1r/ppp1pppp/3p4/3nP3/2BP4/8/PPP2PPP/RNBQK1NR b KQkq -
B03 Alekhine Defense: Exchange Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6 rnbqkb1r/ppp1pppp/1n1P4/8/2PP4/8/PP3PPP/RNBQKBNR b KQkq -
B03 Alekhine Defense: Exchange Variation, Karpov Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. h3 Bg7 8. Nf3 O-O 9. Be2 Nc6 10. O-O Bf5 11. Bf4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6 c7d6 b1c3 g7g6 h2h3 f8g7 g1f3 e8g8 f1e2 b8c6 e1g1 c8f5 c1f4 r2q1rk1/pp2ppbp/1nnp2p1/5b2/2PP1B2/2N2N1P/PP2BPP1/R2Q1RK1 b - -
B03 Alekhine Defense: Four Pawns Attack 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 rnbqkb1r/ppp1pppp/1n1p4/4P3/2PP1P2/8/PP4PP/RNBQKBNR b KQkq -
B03 Alekhine Defense: Four Pawns Attack, Cambridge Gambit 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g5 rnbqkb1r/ppp1pp1p/1n1p4/4P1p1/2PP1P2/8/PP4PP/RNBQKBNR w KQkq -
B03 Alekhine Defense: Four Pawns Attack, Fianchetto Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g6 rnbqkb1r/ppp1pp1p/1n1p2p1/4P3/2PP1P2/8/PP4PP/RNBQKBNR w KQkq -
B03 Alekhine Defense: Four Pawns Attack, Ilyin-Zhenevsky Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Nf3 Bg4 8. e6 fxe6 9. c5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 g1f3 c8g4 e5e6 f7e6 c4c5 r2qkb1r/ppp1p1pp/1nn1p3/2P5/3P2b1/5N2/PP4PP/RNBQKB1R b KQkq -
B03 Alekhine Defense: Four Pawns Attack, Korchnoi Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nc3 e6 8. Nf3 Be7 9. Be2 O-O 10. O-O f6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 c8f5 b1c3 e7e6 g1f3 f8e7 f1e2 e8g8 e1g1 f7f6 rn1q1rk1/ppp1b1pp/1n2pp2/4Pb2/2PP4/2N2N2/PP2B1PP/R1BQ1RK1 w - -
B03 Alekhine Defense: Four Pawns Attack, Main Line 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3 r1bqkb1r/ppp1pppp/1nn5/4P3/2PP4/4B3/PP4PP/RN1QKBNR b KQkq -
B03 Alekhine Defense: Four Pawns Attack, Tartakower Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Qd7 10. Be2 O-O-O 11. O-O Be7 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3 c8f5 b1c3 e7e6 g1f3 d8d7 f1e2 e8c8 e1g1 f8e7 2kr3r/pppqbppp/1nn1p3/4Pb2/2PP4/2N1BN2/PP2B1PP/R2Q1RK1 w - -
B03 Alekhine Defense: Four Pawns Attack, Trifunovic Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 c8f5 rn1qkb1r/ppp1pppp/1n1p4/4Pb2/2PP1P2/8/PP4PP/RNBQKBNR w KQkq -
B03 Alekhine Defense: Hunt Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. c5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 c4c5 rnbqkb1r/ppp1pppp/1n1p4/2P1P3/3P4/8/PP3PPP/RNBQKBNR b KQkq -
B03 Alekhine Defense: Modern Variation, Alekhine Gambit 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. Nf3 Bg4 6. Be2 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 g1f3 c8g4 f1e2 rn1qkb1r/ppp1pppp/1n1p4/4P3/2PP2b1/5N2/PP2BPPP/RNBQK2R b KQkq -
B03 Alekhine Defense: O'Sullivan Gambit 1. e4 Nf6 2. e5 Nd5 3. d4 b5 e2e4 g8f6 e4e5 f6d5 d2d4 b7b5 rnbqkb1r/p1pppppp/8/1p1nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq -
B04 Alekhine Defense: Modern Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq -
B04 Alekhine Defense: Modern Variation, Alburt Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6 rnbqkb1r/ppp1pp1p/3p2p1/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq -
B04 Alekhine Defense: Modern Variation, Keres Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. a4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6 f1c4 d5b6 c4b3 f8g7 a2a4 rnbqk2r/ppp1ppbp/1n1p2p1/4P3/P2P4/1B3N2/1PP2PPP/RNBQK2R b KQkq -
B04 Alekhine Defense: Modern Variation, Larsen Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d6e5 rnbqkb1r/ppp1pppp/8/3np3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq -
B04 Alekhine Defense: Modern Variation, Larsen-Haakert Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nc6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 b8c6 r1bqkb1r/ppp1pppp/2np4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq -
B04 Alekhine Defense: Modern Variation, Schmid Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nb6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d5b6 rnbqkb1r/ppp1pppp/1n1p4/4P3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq -
B05 Alekhine Defense: Modern Variation, Alekhine Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4 rn1qkb1r/ppp1pppp/3p4/3nP3/2PP2b1/5N2/PP3PPP/RNBQKB1R b KQkq -
B05 Alekhine Defense: Modern Variation, Flohr Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 c6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 f1e2 c7c6 rn1qkb1r/pp2pppp/2pp4/3nP3/3P2b1/5N2/PPP1BPPP/RNBQK2R w KQkq -
B05 Alekhine Defense: Modern Variation, Main Line 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq -
B05 Alekhine Defense: Modern Variation, Panov Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. h3 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 h2h3 rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N1P/PPP2PP1/RNBQKB1R b KQkq -
B05 Alekhine Defense: Modern Variation, Vitolins Attack 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 Nb6 6. d5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4 d5b6 d4d5 rn1qkb1r/ppp1pppp/1n1p4/3PP3/2P3b1/5N2/PP3PPP/RNBQKB1R b KQkq -
B06 Modern Defense 1. e4 g6 e2e4 g7g6 rnbqkbnr/pppppp1p/6p1/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B06 Modern Defense 1. e4 g6 2. d4 Bg7 e2e4 g7g6 d2d4 f8g7 rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B06 Modern Defense: Anti-Modern 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Bc4 d6 5. Qe2 e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f1c4 d7d6 d1e2 rnbqk1nr/pp2ppbp/2pp2p1/8/2BPP3/2N5/PPP1QPPP/R1B1K1NR b KQkq -
B06 Modern Defense: Bishop Attack 1. e4 g6 2. d4 Bg7 3. Bc4 e2e4 g7g6 d2d4 f8g7 f1c4 rnbqk1nr/ppppppbp/6p1/8/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq -
B06 Modern Defense: Bishop Attack, Bücker Gambit 1. e4 g6 2. d4 Bg7 3. Bc4 b5 e2e4 g7g6 d2d4 f8g7 f1c4 b7b5 rnbqk1nr/p1ppppbp/6p1/1p6/2BPP3/8/PPP2PPP/RNBQK1NR w KQkq -
B06 Modern Defense: Bishop Attack, Monkey's Bum 1. e4 g6 2. Bc4 Bg7 3. Qf3 e6 4. d4 Bxd4 e2e4 g7g6 f1c4 f8g7 d1f3 e7e6 d2d4 g7d4 rnbqk1nr/pppp1p1p/4p1p1/8/2BbP3/5Q2/PPP2PPP/RNB1K1NR w KQkq -
B06 Modern Defense: Dunworthy Variation 1. e4 g6 2. d4 Bg7 3. c4 d5 4. exd5 c6 5. dxc6 Bxd4 e2e4 g7g6 d2d4 f8g7 c2c4 d7d5 e4d5 c7c6 d5c6 g7d4 rnbqk1nr/pp2pp1p/2P3p1/8/2Pb4/8/PP3PPP/RNBQKBNR w KQkq -
B06 Modern Defense: Fianchetto Gambit 1. e4 g6 2. d4 f5 e2e4 g7g6 d2d4 f7f5 rnbqkbnr/ppppp2p/6p1/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B06 Modern Defense: Gurgenidze Defense 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f2f4 d7d5 e4e5 h7h5 rnbqk1nr/pp2ppb1/2p3p1/3pP2p/3P1P2/2N5/PPP3PP/R1BQKBNR w KQkq -
B06 Modern Defense: Lizard Defense, Mittenberger Gambit 1. e4 g6 2. d4 Bg7 3. Nc3 d5 e2e4 g7g6 d2d4 f8g7 b1c3 d7d5 rnbqk1nr/ppp1ppbp/6p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B06 Modern Defense: Masur Gambit 1. e4 g6 2. d4 Nh6 3. Nc3 f5 4. Bxh6 Bxh6 5. exf5 O-O e2e4 g7g6 d2d4 g8h6 b1c3 f7f5 c1h6 f8h6 e4f5 e8g8 rnbq1rk1/ppppp2p/6pb/5P2/3P4/2N5/PPP2PPP/R2QKBNR w KQ -
B06 Modern Defense: Modern Pterodactyl 1. e4 g6 2. d4 Bg7 3. Nc3 c5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B06 Modern Defense: Mongredien Defense 1. e4 g6 2. d4 Bg7 3. Nc3 b6 e2e4 g7g6 d2d4 f8g7 b1c3 b7b6 rnbqk1nr/p1ppppbp/1p4p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B06 Modern Defense: Mongredien Defense 1. e4 g6 2. d4 Bg7 3. Nf3 b6 e2e4 g7g6 d2d4 f8g7 g1f3 b7b6 rnbqk1nr/p1ppppbp/1p4p1/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq -
B06 Modern Defense: Norwegian Defense 1. e4 g6 2. d4 Nf6 e2e4 g7g6 d2d4 g8f6 rnbqkb1r/pppppp1p/5np1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -
B06 Modern Defense: Norwegian Defense, Norwegian Gambit 1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. Be2 d6 e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 f1e2 d7d6 rnbqkb1r/ppp1pp1p/3p2p1/4P2n/3P4/8/PPP1BPPP/RNBQK1NR w KQkq -
B06 Modern Defense: Pseudo-Austrian Attack 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 f2f4 rnbqk1nr/ppp1ppbp/3p2p1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq -
B06 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nf3 d6 5. Be2 Qa5+ e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 g1f3 d7d6 f1e2 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/5N2/PP2BPPP/RNBQK2R w KQkq -
B06 Modern Defense: Standard Defense 1. e4 g6 2. d4 Bg7 3. Nc3 d6 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B06 Modern Defense: Standard Line 1. e4 g6 2. d4 Bg7 3. Nc3 e2e4 g7g6 d2d4 f8g7 b1c3 rnbqk1nr/ppppppbp/6p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq -
B06 Modern Defense: Three Pawns Attack 1. e4 g6 2. d4 Bg7 3. f4 e2e4 g7g6 d2d4 f8g7 f2f4 rnbqk1nr/ppppppbp/6p1/8/3PPP2/8/PPP3PP/RNBQKBNR b KQkq -
B06 Modern Defense: Two Knights Variation 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3 rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq -
B06 Modern Defense: Two Knights Variation, Suttles Variation 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 g1f3 d7d6 rnbqk1nr/pp2ppbp/2pp2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq -
B06 Modern Defense: Two Knights Variation, Suttles Variation, Tal Gambit 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 c6 5. Bg5 Qb6 6. Qd2 Qxb2 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3 c7c6 c1g5 d8b6 d1d2 b6b2 rnb1k1nr/pp2ppbp/2pp2p1/6B1/3PP3/2N2N2/PqPQ1PPP/R3KB1R w KQkq -
B06 Modern Defense: Westermann Gambit 1. e4 g6 2. d4 Bg7 3. Bd2 e2e4 g7g6 d2d4 f8g7 c1d2 rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPPB1PPP/RN1QKBNR b KQkq -
B06 Modern Defense: Wind Gambit 1. e4 g6 2. d4 Bg7 3. Bd3 e2e4 g7g6 d2d4 f8g7 f1d3 rnbqk1nr/ppppppbp/6p1/8/3PP3/3B4/PPP2PPP/RNBQK1NR b KQkq -
B06 Norwegian Defense 1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. g4 Ng7 e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 g2g4 h5g7 rnbqkb1r/ppppppnp/6p1/4P3/3P2P1/8/PPP2P1P/RNBQKBNR w KQkq -
B06 Pterodactyl Defense: Austrian, Austriadactylus Western 1. e4 g6 2. d4 Bg7 3. f4 c5 4. Nf3 Qa5+ e2e4 g7g6 d2d4 f8g7 f2f4 c7c5 g1f3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/5N2/PPP3PP/RNBQKB1R w KQkq -
B06 Pterodactyl Defense: Austrian, Grand Prix Pterodactyl 1. e4 g6 2. Nc3 Bg7 3. f4 c5 4. Nf3 Qa5 e2e4 g7g6 b1c3 f8g7 f2f4 c7c5 g1f3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/4PP2/2N2N2/PPPP2PP/R1BQKB1R w KQkq -
B06 Pterodactyl Defense: Austrian, Pteranodon 1. e4 g6 2. d4 Bg7 3. f4 c5 4. c3 Qa5 e2e4 g7g6 d2d4 f8g7 f2f4 c7c5 c2c3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/2P5/PP4PP/RNBQKBNR w KQkq -
B06 Pterodactyl Defense: Central, Anhanguera 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. Be3 Qa5 e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 b1c3 d7d6 c1e3 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N1B3/PP3PPP/R2QKBNR w KQkq -
B06 Pterodactyl Defense: Central, Benoni Quetzalcoatlus 1. e4 g6 2. d4 Bg7 3. c4 c5 4. d5 d6 5. Nc3 Qa5 e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 d4d5 d7d6 b1c3 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1pP4/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq -
B06 Pterodactyl Defense: Central, Quetzalcoatlus Gambit 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. dxc5 Qa5 e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 b1c3 d7d6 d4c5 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq -
B06 Pterodactyl Defense: Eastern, Anhanguera 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Be3 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 c1e3 rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/2N1B3/PPP2PPP/R2QKBNR b KQkq -
B06 Pterodactyl Defense: Eastern, Benoni 1. d4 g6 2. e4 Bg7 3. Nc3 c5 4. d5 d2d4 g7g6 e2e4 f8g7 b1c3 c7c5 d4d5 rnbqk1nr/pp1pppbp/6p1/2pP4/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq -
B06 Pterodactyl Defense: Eastern, Benoni Pteranodon 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 Qa5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 d8a5 rnb1k1nr/pp1ppp1p/6p1/q1pP4/4P3/2P5/P1P2PPP/R1BQKBNR w KQkq -
B06 Pterodactyl Defense: Eastern, Benoni Pterodactyl 1. d4 g6 2. Nc3 Bg7 3. e4 c5 4. d5 Qa5 d2d4 g7g6 b1c3 f8g7 e2e4 c7c5 d4d5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1pP4/4P3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B06 Pterodactyl Defense: Eastern, Pteranodon 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Bxc3+ 5. bxc3 Qa5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 g7c3 b2c3 d8a5 rnb1k1nr/pp1ppp1p/6p1/q1P5/4P3/2P5/P1P2PPP/R1BQKBNR w KQkq -
B06 Pterodactyl Defense: Eastern, Pterodactyl 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Qa5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B06 Pterodactyl Defense: Eastern, Rhamphorhynchus 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 rnbqk1nr/pp1pppbp/6p1/2P5/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq -
B06 Pterodactyl Defense: Fianchetto, King Pterodactyl 1. e4 g6 2. d4 Bg7 3. g3 c5 4. Nf3 Qa5+ e2e4 g7g6 d2d4 f8g7 g2g3 c7c5 g1f3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/5NP1/PPP2P1P/RNBQKB1R w KQkq -
B06 Pterodactyl Defense: Fianchetto, Rhamphorhynchus 1. e4 g6 2. d4 Bg7 3. g3 c5 4. dxc5 Qa5+ e2e4 g7g6 d2d4 f8g7 g2g3 c7c5 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/6P1/PPP2P1P/RNBQKBNR w KQkq -
B06 Pterodactyl Defense: Sicilian, Quetzalcoatlus 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Be2 d6 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 g1f3 d8a5 f1e2 d7d6 rnb1k1nr/pp2ppbp/3p2p1/q1p5/3PP3/2N2N2/PPP1BPPP/R1BQK2R w KQkq -
B06 Pterodactyl Defense: Sicilian, Siroccopteryx 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Bc4 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 g1f3 d8a5 f1c4 rnb1k1nr/pp1pppbp/6p1/q1p5/2BPP3/2N2N2/PPP2PPP/R1BQK2R b KQkq -
B06 Pterodactyl Defense: Western, Anhanguera 1. e4 g6 2. d4 Bg7 3. Nf3 c5 4. Be3 Qa5+ e2e4 g7g6 d2d4 f8g7 g1f3 c7c5 c1e3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/4BN2/PPP2PPP/RN1QKB1R w KQkq -
B06 Pterodactyl Defense: Western, Siroccopteryx 1. e4 g6 2. Nf3 Bg7 3. d4 c5 4. Bc4 cxd4 5. Nxd4 Qa5+ e2e4 g7g6 g1f3 f8g7 d2d4 c7c5 f1c4 c5d4 f3d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q7/2BNP3/8/PPP2PPP/RNBQK2R w KQkq -
B06 Rat Defense: Accelerated Gurgenidze 1. e4 g6 2. d4 d6 3. Nc3 c6 e2e4 g7g6 d2d4 d7d6 b1c3 c7c6 rnbqkbnr/pp2pp1p/2pp2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B07 Czech Defense 1. e4 d6 2. d4 Nf6 3. Nc3 c6 e2e4 d7d6 d2d4 g8f6 b1c3 c7c6 rnbqkb1r/pp2pppp/2pp1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B07 Lion Defense: Anti-Philidor 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 r1bqkb1r/pppnpppp/3p1n2/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq -
B07 Lion Defense: Anti-Philidor, Lion's Cave 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 e7e5 r1bqkb1r/pppn1ppp/3p1n2/4p3/3PPP2/2N5/PPP3PP/R1BQKBNR w KQkq -
B07 Lion Defense: Anti-Philidor, Lion's Cave, Lion Claw Gambit 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Qxd4 c6 7. Bc4 d5 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 e7e5 g1f3 e5d4 d1d4 c7c6 f1c4 d6d5 r1bqkb1r/pp1n1ppp/2p2n2/3p4/2BQPP2/2N2N2/PPP3PP/R1B1K2R w KQkq -
B07 Lion Defense: Bayonet Attack 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. g4 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 g2g4 r1bqkb1r/pppnpppp/3p1n2/8/3PP1P1/2N5/PPP2P1P/R1BQKBNR b KQkq -
B07 Modern Defense: Geller's System 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 e2e4 g7g6 d2d4 f8g7 g1f3 d7d6 c2c3 rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2P2N2/PP3PPP/RNBQKB1R b KQkq -
B07 Philidor Defense: Lion Variation, Lion's Claw 1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Be2 Nbd7 5. Nf3 e5 6. O-O Be7 e2e4 d7d6 d2d4 g8f6 b1c3 c7c6 f1e2 b8d7 g1f3 e7e5 e1g1 f8e7 r1bqk2r/pp1nbppp/2pp1n2/4p3/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w kq -
B07 Pirc Defense 1. e4 d6 2. d4 Nf6 3. Nc3 e2e4 d7d6 d2d4 g8f6 b1c3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq -
B07 Pirc Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
B07 Pirc Defense: 150 Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2 rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B3/PPPQ1PPP/R3KBNR b KQkq -
B07 Pirc Defense: 150 Attack, Inner Doll Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2 Bg4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2 c8g4 rn1qkb1r/pp2pp1p/2pp1np1/8/3PP1b1/2N1B3/PPPQ1PPP/R3KBNR w KQkq -
B07 Pirc Defense: 150 Attack, Sveshnikov-Jansa Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. h3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 h2h3 rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B2P/PPP2PP1/R2QKBNR b KQkq -
B07 Pirc Defense: Bayonet Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. h4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 h2h4 rnbqk2r/ppp1ppbp/3p1np1/8/3PP2P/2N5/PPP1BPP1/R1BQK1NR b KQkq -
B07 Pirc Defense: Byrne Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1g5 rnbqkb1r/ppp1pp1p/3p1np1/6B1/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq -
B07 Pirc Defense: Chinese Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. g4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 g2g4 rnbqk2r/ppp1ppbp/3p1np1/8/3PP1P1/2N5/PPP1BP1P/R1BQK1NR b KQkq -
B07 Pirc Defense: Classical Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP1BPPP/R1BQK1NR b KQkq -
B07 Pirc Defense: Kholmov System 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1c4 rnbqkb1r/ppp1pp1p/3p1np1/8/2BPP3/2N5/PPP2PPP/R1BQK1NR b KQkq -
B07 Pirc Defense: Sveshnikov System 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. g3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g2g3 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N3P1/PPP2P1P/R1BQKBNR b KQkq -
B08 Pirc Defense: Classical Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq -
B08 Pirc Defense: Classical Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq -
B08 Pirc Defense: Classical Variation, Quiet System 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQK2R b KQkq -
B08 Pirc Defense: Classical Variation, Quiet System, Chigorin Line 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Nc6 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w - -
B08 Pirc Defense: Classical Variation, Quiet System, Czech Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 c7c6 rnbq1rk1/pp2ppbp/2pp1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w - -
B08 Pirc Defense: Classical Variation, Quiet System, Parma Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Bg4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 c8g4 rn1q1rk1/ppp1ppbp/3p1np1/8/3PP1b1/2N2N2/PPP1BPPP/R1BQ1RK1 w - -
B08 Pirc Defense: Classical Variation, Schlechter Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 h2h3 rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N1P/PPP2PP1/R1BQKB1R b KQkq -
B09 Pirc Defense: Austrian Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 rnbqkb1r/ppp1pp1p/3p1np1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq -
B09 Pirc Defense: Austrian Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQ -
B09 Pirc Defense: Austrian Attack, Dragon Formation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 c7c5 rnbqk2r/pp2ppbp/3p1np1/2p5/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQkq -
B09 Pirc Defense: Austrian Attack, Kurajica Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 c1e3 rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N1BN2/PPP3PP/R2QKB1R b KQ -
B09 Pirc Defense: Austrian Attack, Ljubojevic Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Bc4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 f1c4 rnbqk2r/ppp1ppbp/3p1np1/8/2BPPP2/2N5/PPP3PP/R1BQK1NR b KQkq -
B09 Pirc Defense: Austrian Attack, Unzicker Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5 rnbq1rk1/ppp1ppbp/3p1np1/4P3/3P1P2/2N2N2/PPP3PP/R1BQKB1R b KQ -
B09 Pirc Defense: Austrian Attack, Unzicker Attack, Bronstein Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 Nfd7 7. h4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5 f6d7 h2h4 rnbq1rk1/pppnppbp/3p2p1/4P3/3P1P1P/2N2N2/PPP3P1/R1BQKB1R b KQ -
B09 Pirc Defense: Austrian Attack, Weiss Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 f1d3 rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2NB1N2/PPP3PP/R1BQK2R b KQ -
B10 Caro-Kann Defense 1. e4 c6 e2e4 c7c6 rnbqkbnr/pp1ppppp/2p5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -
B10 Caro-Kann Defense 1. e4 c6 2. Nc3 e2e4 c7c6 b1c3 rnbqkbnr/pp1ppppp/2p5/8/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq -
B10 Caro-Kann Defense 1. e4 c6 2. Nc3 d5 e2e4 c7c6 b1c3 d7d5 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -
B10 Caro-Kann Defense: Accelerated Panov Attack 1. e4 c6 2. c4 e2e4 c7c6 c2c4 rnbqkbnr/pp1ppppp/2p5/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq -
B10 Caro-Kann Defense: Accelerated Panov Attack 1. e4 c6 2. c4 d5 e2e4 c7c6 c2c4 d7d5 rnbqkbnr/pp2pppp/2p5/3p4/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq -
B10 Caro-Kann Defense: Accelerated Panov Attack, Modern Variation 1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 e2e4 c7c6 c2c4 d7d5 e4d5 c6d5 c4d5 g8f6 rnbqkb1r/pp2pppp/5n2/3P4/8/8/PP1P1PPP/RNBQKBNR w KQkq -
B10 Caro-Kann Defense: Accelerated Panov Attack, Open Variation 1. e4 c6 2. c4 e5 e2e4 c7c6 c2c4 e7e5 rnbqkbnr/pp1p1ppp/2p5/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq -
B10 Caro-Kann Defense: Accelerated Panov Attack, Pseudo-Scandinavian 1. e4 c6 2. c4 d5 3. exd5 Qxd5 e2e4 c7c6 c2c4 d7d5 e4d5 d8d5 rnb1kbnr/pp2pppp/2p5/3q4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq -
B10 Caro-Kann Defense: Accelerated Panov Attack, Van Weersel Attack 1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. Qb3 e2e4 c7c6 c2c4 d7d5 c4d5 c6d5 d1b3 rnbqkbnr/pp2pppp/8/3p4/4P3/1Q6/PP1P1PPP/RNB1KBNR b KQkq -
B10 Caro-Kann Defense: Breyer Variation 1. e4 c6 2. d3 e2e4 c7c6 d2d3 rnbqkbnr/pp1ppppp/2p5/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq -
B10 Caro-Kann Defense: Breyer Variation, Stein Attack 1. e4 c6 2. d3 d5 3. Nd2 g6 4. Ngf3 Bg7 5. g3 e5 6. Bg2 Ne7 7. O-O O-O 8. b4 e2e4 c7c6 d2d3 d7d5 b1d2 g7g6 g1f3 f8g7 g2g3 e7e5 f1g2 g8e7 e1g1 e8g8 b2b4 rnbq1rk1/pp2npbp/2p3p1/3pp3/1P2P3/3P1NP1/P1PN1PBP/R1BQ1RK1 b - -
B10 Caro-Kann Defense: Euwe Attack 1. e4 c6 2. b3 e2e4 c7c6 b2b3 rnbqkbnr/pp1ppppp/2p5/8/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq -
B10 Caro-Kann Defense: Goldman Variation 1. e4 c6 2. Nc3 d5 3. Qf3 e2e4 c7c6 b1c3 d7d5 d1f3 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N2Q2/PPPP1PPP/R1B1KBNR b KQkq -
B10 Caro-Kann Defense: Hector Gambit 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Ng5 e2e4 c7c6 b1c3 d7d5 g1f3 d5e4 f3g5 rnbqkbnr/pp2pppp/2p5/6N1/4p3/2N5/PPPP1PPP/R1BQKB1R b KQkq -
B10 Caro-Kann Defense: Hillbilly Attack 1. e4 c6 2. Bc4 e2e4 c7c6 f1c4 rnbqkbnr/pp1ppppp/2p5/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq -
B10 Caro-Kann Defense: Hillbilly Attack, Schaeffer Gambit 1. e4 c6 2. Bc4 d5 3. Bb3 dxe4 4. Qh5 e2e4 c7c6 f1c4 d7d5 c4b3 d5e4 d1h5 rnbqkbnr/pp2pppp/2p5/7Q/4p3/1B6/PPPP1PPP/RNB1K1NR b KQkq -
B10 Caro-Kann Defense: Labahn Attack 1. e4 c6 2. b4 e2e4 c7c6 b2b4 rnbqkbnr/pp1ppppp/2p5/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq -
B10 Caro-Kann Defense: Labahn Attack, Double Gambit 1. e4 c6 2. b4 d5 3. b5 e2e4 c7c6 b2b4 d7d5 b4b5 rnbqkbnr/pp2pppp/2p5/1P1p4/4P3/8/P1PP1PPP/RNBQKBNR b KQkq -
B10 Caro-Kann Defense: Labahn Attack, Polish Variation 1. e4 c6 2. b4 e5 3. Bb2 e2e4 c7c6 b2b4 e7e5 c1b2 rnbqkbnr/pp1p1ppp/2p5/4p3/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq -