Aperturas de ajedrez: jugadas, porcentajes y lo que la gente juega de verdad
Cada apertura de aquí abajo está respaldada por partidas reales: 4.0M partidas de Lichess con puntuación, ambos jugadores desde 1600, blitz o más lento. Los porcentajes son lo que pasó de verdad sobre el tablero, no teoría.
1,914 aperturas con partidas suficientes para decir algo útil.
ECO A
- Apertura Húngara 44k
- Van't Kruijs Opening 44k
- Mieses Opening 20k
- Apertura Polaca 18k
- Apertura Van Geet 17k
- Apertura Grob 11k
- Saragossa Opening 7791
- Apertura Húngara: Slav Formation 4615
- Polish Opening, with d5 3903
- Apertura Grob: Grob Gambit 3783
- Mieses Opening: Reversed Rat 3702
- Apertura Húngara: Indian Defense 3402
- Apertura Húngara: Catalan Formation 3331
- Apertura Húngara: Sicilian Invitation 3180
- Anderssen's Opening 3014
- Apertura Van Geet: Reversed Nimzowitsch 2817
- Apertura Húngara: Symmetrical Variation 2665
- Barnes Opening 2644
- Apertura Polaca: Czech Defense 2296
- Apertura Kádas 2233
- Apertura Grob: Grob Gambit, Fritz Gambit 1545
- Apertura Húngara: Reversed Modern Defense 1447
- Clemenz Opening 1413
- Ware Opening 1335
- Apertura Polaca: King's Indian Variation 1320
- Apertura Grob: Grob Gambit Declined 1149
- Apertura Grob: Spike, Hurst Attack 914
- Apertura Polaca: Outflank Variation 777
- Apertura Van Geet: Dunst-Perrenet Gambit 662
- Apertura Polaca: Bugayev Attack 604
- Apertura Húngara: Dutch Defense 553
- Apertura Amar 533
- Lasker Simul Special 502
- Apertura Polaca: Schiffler-Sokolsky Variation 488
- Apertura Polaca: Baltic Defense 432
- Apertura Van Geet: Napoleon Attack 412
- Apertura Polaca: Birmingham Gambit 361
- Sodium Attack 309
- Valencia Opening 308
- Apertura Húngara: Reversed Alekhine 294
- Apertura Polaca: Bugayev Advance Variation 293
- Apertura Grob: Spike Attack 262
- Polish Opening, with d5 235
- Apertura Polaca: Dutch Defense 231
- Global Opening 195
- Apertura Van Geet: Sicilian Two Knights 176
- Creepy Crawly Formation: Classical Defense 171
- Barnes Opening: Hammerschlag 170
- Apertura Polaca: Symmetrical Variation 152
- Ware Opening: Crab Variation 114
- Apertura Polaca: King's Indian Variation, Schiffler Attack 112
- Apertura Polaca: Queen's Indian Variation 109
- Apertura Van Geet: Reversed Scandinavian 106
- Apertura Van Geet: Novosibirsk Variation 103
- Apertura Polaca: Queenside Defense 98
- Apertura Grob: Keene Defense 96
- Apertura Polaca: Grigorian Variation 90
- Ataque Nimzo-Larsen 46k
- Ataque Nimzo-Larsen: Modern Variation 13k
- Ataque Nimzo-Larsen: Classical Variation 13k
- Ataque Nimzo-Larsen: Modern Variation 8086
- Ataque Nimzo-Larsen: Indian Variation 6083
- Ataque Nimzo-Larsen: Modern Variation 5493
- Ataque Nimzo-Larsen: English Variation 2894
- Ataque Nimzo-Larsen: Symmetrical Variation 1321
- Ataque Nimzo-Larsen: Dutch Variation 476
- Ataque Nimzo-Larsen: Modern Variation 270
- Ataque Nimzo-Larsen: Spike Variation 225
- Ataque Nimzo-Larsen: Graz Attack 124
- Ataque Nimzo-Larsen: Polish Variation 93
- Apertura Bird 50k
- Apertura Bird: From's Gambit 4995
- Apertura Bird: Schlechter Gambit 602
- Apertura Bird: From's Gambit, Lasker Variation 538
- Apertura Bird: Hobbs Gambit 169
- Apertura Bird: Double Duck Formation 167
- Apertura Bird: Lasker Gambit 123
- Apertura Bird: Horsefly Defense 115
- Apertura Bird: Wagner-Zwitersch Gambit 108
- Apertura Bird: Dutch Variation 19k
- Apertura Bird: Williams Gambit 969
- Apertura Bird: Lasker Variation 445
- Apertura Bird: Sturm Gambit 214
- Apertura Zukertort 155k
- Apertura Zukertort: Sicilian Invitation 16k
- Apertura Zukertort: Queen's Gambit Invitation 11k
- Apertura Zukertort: Black Mustang Defense 9226
- Apertura Zukertort: Pirc Invitation 8109
- Apertura Zukertort: Slav Invitation 7154
- Apertura Zukertort: Kingside Fianchetto 6786
- Apertura Zukertort: Queenside Fianchetto Variation 3623
- Apertura Zukertort: Ross Gambit 3037
- Apertura Zukertort: Dutch Variation 2995
- Apertura Zukertort: Wade Defense 772
- Apertura Zukertort: Vos Gambit 667
- Apertura Zukertort: The Walrus 384
- Apertura Zukertort: Lisitsyn Gambit 366
- Apertura Zukertort: Arctic Defense 341
- Apertura Zukertort: St. George Defense 330
- Apertura Zukertort: Herrstrom Gambit 288
- Apertura Zukertort: Polish Defense 252
- Apertura Zukertort: Basman Defense 216
- Apertura Zukertort: Lisitsyn Gambit Deferred 105
- Apertura Zukertort: Ware Defense 103
- Apertura Zukertort 31k
- Ataque India de Rey 5660
- Ataque India de Rey: Symmetrical Defense 4294
- Apertura Zukertort: Nimzo-Larsen Variation 1970
- Apertura Zukertort: Lemberger Gambit 1706
- Apertura Zukertort: Quiet System 1274
- Ataque India de Rey: Wahls Defense 447
- Apertura Zukertort 262
- Apertura Polaca: Zukertort System 203
- Ataque India de Rey: Spassky Variation 176
- Apertura Zukertort 54k
- Apertura Zukertort: Tennison Gambit 14k
- Apertura Zukertort: Old Indian Attack 3298
- Ataque Nimzo-Larsen: Classical Variation 2861
- Apertura Zukertort: Reversed Mexican Defense 1046
- Apertura Zukertort: Tennison Gambit, Brigg's Trap 240
- Apertura Zukertort: Santasiere's Folly 191
- Ataque India de Rey 14k
- King's Indian Attack, with e6 3687
- Ataque India de Rey: Sicilian Variation 3366
- King's Indian Attack, with e6 1220
- King's Indian Attack, with Bf5 771
- Ataque India de Rey: Keres Variation 696
- Ataque India de Rey: Yugoslav Variation 504
- Ataque India de Rey: Double Fianchetto 431
- Ataque India de Rey: Omega-Delta Gambit 147
- Ataque India de Rey: Keres Variation 101
- Ataque India de Rey: Sicilian Variation 3371
- Ataque India de Rey: French Variation 3044
- Apertura Zukertort: Reversed Grünfeld 1162
- Apertura Zukertort: Reversed Grünfeld 609
- Apertura Zukertort: Reversed Grünfeld 474
- Apertura Zukertort: Reversed Grünfeld 361
- Ataque India de Rey: Sicilian Variation 216
- Apertura Réti 10k
- Apertura Réti: Advance Variation 2449
- Apertura Réti: Réti Accepted 2174
- Apertura Réti: Reversed Blumenfeld Gambit 281
- Apertura Réti: Advance Variation, Michel Gambit 107
- Apertura Inglesa 157k
- Apertura Inglesa: Anglo-Scandinavian Defense 10k
- Apertura Inglesa: Great Snake Variation 8683
- Apertura Inglesa: Anglo-Dutch Defense 3662
- Apertura Inglesa: Anglo-Lithuanian Variation 1638
- Apertura Inglesa: Anglo-Scandinavian Defense, Malvinas Variation 1493
- Apertura Inglesa: Anglo-Scandinavian Defense, Schulz Gambit 1248
- Apertura Inglesa: Jaenisch Gambit 494
- Apertura Inglesa: Anglo-Scandinavian Defense, Löhn Gambit 274
- Apertura Inglesa: Myers Defense 119
- Apertura Inglesa: Caro-Kann Defensive System 11k
- Apertura Réti: Anglo-Slav Variation, Gurevich System 1355
- Apertura Réti: Anglo-Slav Variation, with g3 945
- Apertura Réti: Anglo-Slav Variation, with g3 277
- Apertura Réti: Anglo-Slav Variation, Bogoljubow Variation 444
- Apertura Inglesa: Agincourt Defense 19k
- Apertura Inglesa: Agincourt Defense 3866
- Apertura Inglesa: Agincourt Defense 3476
- Apertura Inglesa: Neo-Catalan 1510
- Apertura Inglesa: Neo-Catalan Declined 962
- Apertura Inglesa: Agincourt Defense, Catalan Defense, Semi-Slav Defense 666
- Apertura Inglesa: Agincourt Defense, Kurajica Defense 254
- Apertura Inglesa: Agincourt Defense, Catalan Defense Accepted 199
- Apertura Inglesa: Agincourt Defense, Bogoljubow Defense 102
- Apertura Inglesa: Agincourt Defense, Neo-Catalan Declined 1110
- Apertura Inglesa: Agincourt Defense, Neo-Catalan Declined 337
- Apertura Inglesa: Anglo-Indian Defense 32k
- Apertura Inglesa: Anglo-Indian Defense, King's Knight Variation 9387
- Apertura Inglesa: Anglo-Indian Defense, King's Indian Formation 3635
- Apertura Inglesa: Anglo-Indian Defense, Scandinavian Defense 1333
- Apertura Inglesa: Anglo-Indian Defense, Old Indian Formation 862
- Apertura Inglesa: Anglo-Indian Defense, Anti-Anti-Grünfeld 773
- Apertura Inglesa: Anglo-Indian Defense, Scandinavian Defense, Exchange Variation 636
- Apertura Inglesa: Anglo-Indian Defense, Queen's Indian Formation 289
- Apertura Inglesa: Anglo-Indian Defense, Queen's Indian Formation 276
- English Orangutan 123
- Apertura Inglesa: Anglo-Indian Defense, Queen's Knight Variation 19k
- Apertura Inglesa: Anglo-Grünfeld Defense 1443
- Apertura Inglesa: Anglo-Indian Defense, Anglo-Grünfeld Variation 368
- Apertura Inglesa: Anglo-Indian Defense, Anglo-Grünfeld Variation 133
- Apertura Inglesa: Anglo-Indian Defense, Hedgehog System 6531
- Apertura Inglesa: Anglo-Indian Defense, Nimzo-English 169
- Apertura Inglesa: Anglo-Indian Defense, Queen's Indian Formation 87
- Apertura Inglesa: Mikenas-Carls Variation 2056
- Apertura Inglesa: Mikenas-Carls Variation 501
- Apertura Inglesa: Mikenas-Carls, Sicilian 371
- Apertura Inglesa: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit 112
- Apertura Inglesa: King's English Variation 43k
- Apertura Inglesa: King's English Variation, Nimzowitsch Variation 994
- Apertura Inglesa: King's English Variation, Nimzowitsch-Flohr Variation 192
- Apertura Inglesa: King's English Variation, Reversed Sicilian 27k
- Apertura Inglesa: King's English Variation, Kramnik-Shirov Counterattack 1707
- Apertura Inglesa: King's English Variation 941
- Apertura Inglesa: King's English Variation, Keres Defense 218
- Apertura Inglesa: King's English Variation, Troger Defense 122
- Apertura Inglesa: King's English Variation, Two Knights Variation 12k
- Apertura Inglesa: Carls-Bremen System 4912
- Apertura Inglesa: King's English Variation, Two Knights Variation, Reversed Dragon 1084
- Apertura Inglesa: King's English Variation, Two Knights Variation, Smyslov System 1013
- Apertura Inglesa: King's English Variation, Two Knights Variation, Keres Variation 892
- Apertura Inglesa: King's English Variation, Two Knights Variation, Keres Variation 270
- Apertura Inglesa: King's English Variation, Reversed Closed Sicilian 5349
- Apertura Inglesa: King's English Variation, Taimanov Variation 256
- Apertura Inglesa: King's English Variation, Reversed Closed Sicilian 154
- Apertura Inglesa: King's English Variation, Three Knights System 1891
- Apertura Inglesa: King's English Variation, Four Knights Variation 2556
- Apertura Inglesa: Four Knights System, Nimzowitsch Variation 566
- Apertura Inglesa: King's English Variation, Four Knights Variation, Quiet Line 556
- Apertura Inglesa: King's English Variation, Four Knights Variation, Flexible Line 276
- Apertura Inglesa: King's English Variation, Four Knights Variation, Fianchetto Line 866
- Apertura Inglesa: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 230
- Apertura Inglesa: King's English Variation, Four Knights Variation, Fianchetto Line 223
- Apertura Inglesa: King's English Variation, Four Knights Variation, Fianchetto Line 111
- Apertura Inglesa: Symmetrical Variation 18k
- Apertura Inglesa: Symmetrical Variation 5989
- Apertura Inglesa: Symmetrical Variation, Anti-Benoni Variation 2291
- Apertura Inglesa: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense 149
- Apertura Inglesa: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense 154
- Apertura Inglesa: Symmetrical Variation, Normal Variation 11k
- Apertura Inglesa: Symmetrical Variation, Three Knights Variation 1748
- Apertura Inglesa: Symmetrical Variation, Fianchetto Variation 1150
- Apertura Inglesa: Symmetrical Variation, Rubinstein Variation 204
- Apertura Inglesa: Symmetrical Variation, Rubinstein Variation 121
- Apertura Inglesa: Symmetrical Variation, Two Knights Variation 5949
- Apertura Inglesa: Symmetrical Variation, Four Knights Variation 1285
- Apertura Inglesa: Symmetrical Variation, Four Knights Variation, Keres-Parma System 117
- Apertura Inglesa: Symmetrical Variation, Two Knights, Fianchetto Variation 2798
- Apertura Inglesa: Symmetrical Variation, Ultra-Symmetrical Variation 1989
- Apertura Inglesa: Symmetrical Variation, Botvinnik System 548
- Apertura Inglesa: Symmetrical Variation, Three Knights, Fianchetto Variation 1082
- Apertura Inglesa: Symmetrical Variation, Three Knights, Fianchetto Variation 205
- Apertura Inglesa: Symmetrical Variation, Three Knights, Fianchetto Variation 86
- Apertura Inglesa: Symmetrical Variation, Full Symmetry Line 634
- Apertura Inglesa: Symmetrical Variation, Mecking Variation 150
- Apertura de Peón de Dama 1.1M
- Horwitz Defense 98k
- Gambito Englund 53k
- Apertura de Peón de Dama: Modern Defense 47k
- English Defense 18k
- Gambito Englund: Hartlaub-Charlick Gambit 12k
- Gambito Englund: Main Line 7898
- Mikenas Defense 7325
- Englund Gambit Declined: Reversed French 5795
- Englund Gambit Declined 5458
- Apertura de Peón de Dama: Anglo-Slav Opening 3508
- English Defense 3103
- Englund Gambit Declined: Reversed Alekhine 2585
- Gambito Englund: Soller Gambit 2292
- Polish Defense 1930
- Englund Gambit Declined: Reversed Krebs 1613
- Gambito Englund: Felbecker Gambit 1183
- Gambito Englund: Stockholm Variation 950
- Mikenas Defense: Lithuanian Variation 897
- Kangaroo Defense 756
- Gambito Englund: Soller Gambit Deferred 551
- Gambito Englund: Zilbermints Gambit 488
- Kangaroo Defense: Keres Defense, Transpositional Variation 371
- Borg Defense: Borg Gambit 345
- Defensa Pterodáctilo: Queen Pterodactyl, Quiet Line 277
- Englund Gambit Declined: Reversed Brooklyn 245
- Englund Gambit Declined: Reversed Mokele Mbembe 217
- Montevideo Defense 145
- Defensa Moderna: Beefeater Variation 119
- Australian Defense 105
- Apertura de Peón de Dama 40k
- Defensa India Antigua 15k
- Defensa Moderna 6359
- Defensa Rata: English Rat 2808
- Apertura de Peón de Dama: Rossolimo Variation 1887
- Wade Defense 649
- Defensa Rata: English Rat, Lisbon Gambit 430
- Robatsch Defense: Rossolimo Variation 114
- Defensa Moderna: Averbakh System 5985
- Defensa Moderna: Kotov Variation 1103
- Defensa Benoni: Old Benoni 44k
- Defensa Benoni: Old Benoni 18k
- Defensa Benoni: Old Benoni 6948
- Defensa Benoni: Benoni Gambit Accepted 6739
- Defensa Benoni: French Benoni 4053
- Defensa Benoni: Benoni-Indian Defense 3127
- Defensa Benoni: Benoni-Indian Defense, Kingside Move Order 1450
- Defensa India: Pseudo-Benko 344
- Defensa Benoni: Old Benoni, Mujannah Formation 169
- Defensa Benoni: Old Benoni, Schmid Variation 136
- Apertura de Peón de Dama: Liedmann Gambit 117
- Defensa Benoni: Benoni Gambit, Schlenker Defense 108
- Defensa Benoni: Cormorant Gambit 85
- Defensa Benoni: Old Benoni 2338
- Defensa Benoni: Semi-Benoni 537
- Defensa India 283k
- Defensa India: Accelerated London System 40k
- Apertura de Peón de Dama: Chigorin Variation 24k
- Ataque Trompowsky 12k
- Ataque Trompowsky: Classical Defense 2998
- Paleface Attack 1993
- Defensa India: Tartakower Attack 1836
- Canard Opening 1686
- Defensa India: Reversed Chigorin Defense 1509
- Ataque Trompowsky: Classical Defense, Big Center Variation 1235
- Defensa India: Omega Gambit 1184
- Ataque Trompowsky: Edge Variation 865
- Apertura de Peón de Dama: Veresov, Richter Attack 734
- Defensa India: Pawn Push Variation 588
- Defensa India: Paleface Attack, Blackmar-Diemer Gambit Deferred 580
- Ataque Trompowsky: Raptor Variation 529
- Basque Opening 393
- Defensa India: Gibbins-Weidenhagen Gambit 218
- Defensa India: Maddigan Gambit 177
- Ataque Trompowsky: Borg Variation 152
- Defensa India: Gibbins-Weidenhagen Gambit Accepted 142
- Amazon Attack: Siberian Attack 91
- Defensa India: Knights Variation 63k
- Defensa India: Wade-Tartakower Defense 8406
- Defensa India: London System 5666
- Defensa India: Spielmann-Indian 5499
- Yusupov-Rubinstein System 4647
- Torre Attack: Classical Defense 2855
- Apertura de Peón de Dama: Veresov Attack, Classical Defense 1228
- Defensa India: Czech-Indian 991
- Torre Attack: Classical Defense, Nimzowitsch Variation 275
- Defensa India: Polish Variation 115
- Pseudo Queen's Indian Defense 1347
- East Indian Defense 20k
- London System 5630
- London System 5313
- London System 4638
- Torre Attack: Fianchetto Defense 2183
- London System, with Bd3 960
- London System, with Be2 776
- Defensa India: Colle System, King's Indian Variation 776
- London System, with Be2 662
- Apertura de Peón de Dama: Barry Attack 466
- Apertura de Peón de Dama: Barry Attack 378
- Apertura de Peón de Dama: Torre Attack, Grünfeld Variation, Main Line 92
- Defensa India: Przepiorka Variation 2706
- Defensa India: Normal Variation 127k
- Slav Indian 3121
- Queen's Indian Accelerated 1083
- Mexican Defense 942
- Defensa India: Budapest Gambit 9607
- Defensa India: Budapest Gambit Accepted 6025
- Defensa India: Budapest Gambit Accepted, Fajarowicz Defense 780
- Defensa India: Budapest Gambit Accepted, Fajarowicz Defense, Bonsdorf Variation 133
- Defensa India: Budapest Gambit Accepted, Main Line 5206
- Defensa India: Budapest Gambit Accepted, Main Line, Adler Variation 2742
- Defensa India: Budapest Gambit Accepted, Main Line, Rubinstein Variation 1039
- Defensa India: Budapest Gambit Accepted, Main Line, Alekhine Variation 481
- Defensa India: Budapest Gambit Accepted, Main Line, Alekhine Variation, Abonyi Variation 385
- Defensa India Antigua 12k
- Defensa India Antigua: Czech Variation, with Nc3 1961
- Defensa India Antigua: Czech Variation, with Nf3 668
- Defensa India Antigua: Janowski Variation 390
- Defensa India Antigua: Janowski Variation, Main Line 100
- Defensa India Antigua: Ukrainian Variation 837
- Defensa India Antigua: Two Knights Variation 327
- Defensa India Antigua: Tartakower-Indian 118
- Defensa India Antigua: Normal Variation 206
- Defensa Benoni 15k
- Defensa Benoni: Hromádka System 2345
- Defensa Benoni: Czech Benoni Defense 637
- Defensa Benoni: Weenink Variation 149
- Vulture Defense 118
- Gambito Benko 6309
- Gambito Benko Aceptado 3553
- Gambito Benko: Zaitsev System 778
- Gambito Benko Aceptado: Modern Variation 590
- Gambito Benko Aceptado: Pawn Return Variation 428
- Benko Gambit Declined: Main Line 270
- Benko Gambit Declined: Quiet Line 114
- Benko Gambit Declined: Sosonko Variation 91
- Gambito Benko Aceptado: Dlugy Variation 81
- Gambito Benko Aceptado: Fully Accepted Variation 1676
- Gambito Benko Aceptado: Yugoslav 291
- Gambito Benko 196
- Gambito Benko Aceptado: King Walk Variation 159
- Defensa Benoni: Modern Variation 3493
- Defensa Benoni 674
- Defensa Benoni: Knight's Tour Variation 94
- Defensa Benoni: Fianchetto Variation 93
- Defensa Benoni: Fianchetto Variation 185
- Defensa Benoni: King's Pawn Line 2805
- Defensa Benoni: Pawn Storm Variation 424
- Defensa Benoni: Taimanov Variation 181
- Defensa Benoni: Four Pawns Attack 88
- Defensa Benoni: Classical Variation 544
- Defensa Benoni: Classical Variation, New York Variation 126
- Defensa Benoni: Classical Variation, Traditional Variation 90
- Defensa Holandesa 28k
- Defensa Holandesa: Raphael Variation 2791
- Defensa Holandesa: Hopton Attack 1450
- Apertura de Peón de Dama: Veresov Attack, Dutch System 340
- Defensa Holandesa: Korchnoi Attack 308
- Defensa Holandesa: Krejcik Gambit 222
- Defensa Holandesa: Barcza Variation 191
- Defensa Holandesa: Alapin Variation 158
- Defensa Holandesa: Janzen-Korchnoi Gambit 155
- Defensa Holandesa: Fianchetto Attack 1016
- Defensa Holandesa: Semi-Leningrad Variation 250
- Defensa Holandesa: Staunton Gambit 1724
- Defensa Holandesa: Staunton Gambit Accepted 1288
- Defensa Rata: Balogh Defense 516
- Defensa Holandesa: Blackmar's Second Gambit 221
- Defensa Holandesa: Staunton Gambit 667
- Defensa Holandesa 9452
- Defensa Holandesa: Normal Variation 6992
- Defensa Holandesa: Classical Variation 4827
- Defensa Holandesa: Rubinstein Variation 3148
- Defensa Holandesa: Queen's Knight Variation 5299
- Defensa Holandesa: Fianchetto Variation 411
- Defensa Holandesa: Leningrad Variation 143
- Defensa Holandesa: Leningrad Variation 164
- Defensa Holandesa: Classical Variation 566
- Defensa Holandesa: Classical Variation 157
- Defensa Holandesa: Nimzo-Dutch Variation 96
- Defensa Holandesa: Classical Variation 159
- Defensa Holandesa: Classical Variation 167
- Defensa Holandesa: Classical Variation 121
ECO B
- Apertura de Peón de Rey 2.3M
- Defensa Pirc 103k
- Defensa Pirc 65k
- Owen Defense 43k
- Defensa Pirc 36k
- Defensa Nimzowitsch 34k
- Defensa Nimzowitsch 13k
- Defensa Nimzowitsch: Declined Variation 13k
- Defensa Nimzowitsch: Kennedy Variation 12k
- Defensa Nimzowitsch: Kennedy Variation, Linksspringer Variation 7863
- Defensa Rata: Harmonist 5780
- St. George Defense 5374
- Defensa Nimzowitsch: Scandinavian Variation 5338
- Defensa Nimzowitsch: Scandinavian Variation, Exchange Variation 4287
- Defensa Nimzowitsch: Scandinavian Variation, Advance Variation 4177
- Defensa Rata: Antal Defense 4039
- Duras Gambit 3932
- Borg Defense 1907
- Defensa Nimzowitsch: Williams Variation 1892
- Defensa Nimzowitsch: Kennedy Variation, de Smet Gambit 1709
- Defensa Nimzowitsch: Mikenas Variation 1404
- Ware Defense 1370
- Defensa Nimzowitsch: Franco-Nimzowitsch Variation 1310
- Lion Defense: Lion's Jaw 1304
- Carr Defense 1298
- Barnes Defense 1215
- Goldsmith Defense 1176
- Defensa Nimzowitsch: Colorado Countergambit 936
- Owen Defense: Smith Gambit 858
- Defensa Pirc: Roscher Gambit 833
- Defensa Nimzowitsch: Scandinavian Variation, Bogoljubow Variation 745
- Defensa Nimzowitsch: Scandinavian Variation, Bogoljubow Variation 675
- Defensa Nimzowitsch: Kennedy Variation, Paulsen Attack 565
- Defensa Nimzowitsch: Colorado Countergambit Accepted 499
- Defensa Nimzowitsch: Pseudo-Spanish Variation 482
- Defensa Nimzowitsch: French Connection 462
- Defensa Nimzowitsch: Kennedy Variation, Riemann Defense 368
- Owen Defense: Guatemala Defense 354
- Apertura Van Geet: Berlin Gambit 345
- Borg Defense: Borg Gambit 343
- Defensa Nimzowitsch: Kennedy Variation, Keres Attack 297
- Defensa Nimzowitsch: Scandinavian Variation, Exchange Variation, Marshall Gambit 287
- Defensa Nimzowitsch: Kennedy Variation, Main Line 277
- St. George Defense: Polish Variation 265
- Lemming Defense 212
- Fried Fox Defense 191
- Hippopotamus Defense 143
- Defensa Nimzowitsch: Scandinavian Variation, Bogoljubow Variation, Vehre Variation 135
- Defensa Nimzowitsch: Pirc Connection 106
- Defensa Nimzowitsch: Scandinavian Variation, Bogoljubow Variation, Nimzowitsch Gambit 101
- Defensa Nimzowitsch: El Columpio Defense 97
- Defensa Escandinava 216k
- Defensa Escandinava: Mieses-Kotroc Variation 106k
- Defensa Escandinava: Modern Variation 47k
- Defensa Escandinava: Main Line 29k
- Defensa Escandinava: Valencian Variation 27k
- Defensa Escandinava: Modern Variation 11k
- Defensa Escandinava: Blackburne-Kloosterboer Gambit 8047
- Defensa Escandinava: Gubinsky-Melts Defense 5758
- Defensa Escandinava: Marshall Variation 5651
- Defensa Escandinava: Main Line, Mieses Variation 4673
- Defensa Escandinava: Panov Transfer 4643
- Defensa Escandinava: Icelandic-Palme Gambit 4166
- Defensa Escandinava: Boehnke Gambit 3185
- Defensa Escandinava: Blackburne Gambit 3139
- Defensa Escandinava: Portuguese Gambit 2297
- Defensa Escandinava: Main Line, Leonhardt Gambit 1853
- Defensa Escandinava: Modern Variation, Gipslis Variation 1476
- Defensa Escandinava: Kloosterboer Gambit 1292
- Defensa Escandinava: Valencian Variation, Main Line 1134
- Defensa Escandinava: Portuguese Gambit, Wuss Variation 916
- Defensa Escandinava: Portuguese Gambit, Classical Variation 601
- Defensa Escandinava: Valencian Variation, Ilundain Variation 565
- Defensa Escandinava: Kiel Variation 510
- Defensa Escandinava: Classical Variation 478
- Defensa Escandinava: Richter Variation 444
- Defensa Escandinava: Lasker Variation 437
- Defensa Escandinava: Schiller-Pytel Variation 413
- Defensa Escandinava: Bronstein Variation 402
- Defensa Escandinava: Anderssen Counterattack 378
- Defensa Escandinava: Portuguese Gambit, Banker Variation 363
- Apertura Van Geet: Grünfeld Defense 363
- Defensa Escandinava: Portuguese Gambit, Correspondence Refutation 145
- Defensa Escandinava: Kádas Gambit 85
- Defensa Escandinava 83
- Defensa Escandinava: Richter Variation 83
- Defensa Alekhine 42k
- Defensa Alekhine: Normal Variation 22k
- Defensa Alekhine: Two Pawns Attack 8117
- Defensa Alekhine: Scandinavian Variation 6814
- Defensa Alekhine: Maróczy Variation 2968
- Defensa Alekhine: Scandinavian Variation, Geschev Gambit 1633
- Defensa Alekhine: Two Pawns Attack, Lasker Variation 1187
- Defensa Alekhine: Sämisch Attack 1012
- Defensa Alekhine: Brooklyn Variation 649
- Defensa Alekhine: Krejcik Variation 519
- Defensa Alekhine: Two Pawns Attack, Tate Variation 514
- Defensa Alekhine: Mokele Mbembe 405
- Defensa Alekhine: Hunt Variation, Lasker Simul Gambit 189
- Defensa Alekhine: Mokele Mbembe, Vavra Defense 148
- Defensa Alekhine: The Squirrel 112
- Defensa Alekhine: Krejcik Variation, Krejcik Gambit 110
- Defensa Alekhine: Steiner Variation 106
- Defensa Alekhine: Spielmann Gambit 87
- Defensa Alekhine 9826
- Defensa Alekhine 7378
- Defensa Alekhine: Exchange Variation 3618
- Defensa Alekhine 3305
- Defensa Alekhine: Four Pawns Attack 3076
- Defensa Alekhine: Four Pawns Attack, Main Line 651
- Defensa Alekhine: O'Sullivan Gambit 504
- Defensa Alekhine: Balogh Variation 401
- Defensa Alekhine: Four Pawns Attack, Fianchetto Variation 374
- Defensa Alekhine: Four Pawns Attack, Trifunovic Variation 333
- Defensa Alekhine: Modern Variation, Alekhine Gambit 109
- Defensa Alekhine: Exchange Variation, Voronezh Variation 97
- Defensa Alekhine: Modern Variation 2217
- Defensa Alekhine: Modern Variation, Larsen Variation 509
- Defensa Alekhine: Modern Variation, Alburt Variation 419
- Defensa Alekhine: Modern Variation, Larsen-Haakert Variation 231
- Defensa Alekhine: Modern Variation, Schmid Variation 168
- Defensa Alekhine: Modern Variation, Main Line 903
- Defensa Alekhine: Modern Variation, Panov Variation 82
- Defensa Moderna 72k
- Defensa Moderna 41k
- Defensa Moderna: Standard Line 11k
- Defensa Moderna: Standard Defense 8446
- Defensa Moderna: Two Knights Variation 6371
- Defensa Moderna: Three Pawns Attack 4445
- Defensa Moderna: Mongredien Defense, with Nf3 1551
- Defensa Moderna: Bishop Attack 1290
- Defensa Moderna: Pseudo-Austrian Attack 1264
- Defensa Moderna: Modern Pterodactyl 1041
- Defensa Moderna: Norwegian Defense 680
- Defensa Moderna: Two Knights Variation, Suttles Variation 581
- Defensa Rata: Accelerated Gurgenidze 560
- Defensa Moderna: Mongredien Defense, with Nc3 542
- Defensa Pterodáctilo: Eastern, Anhanguera 308
- Defensa Pterodáctilo: Eastern, Benoni 290
- Defensa Moderna: Lizard Defense, Mittenberger Gambit 217
- Defensa Moderna: Wind Gambit 132
- Defensa Pirc 18k
- Apertura de Peón de Rey: Maróczy Defense 6768
- Czech Defense 4761
- Lion Defense 3157
- Defensa Pirc: Byrne Variation 2830
- Defensa Moderna: Geller's System 2194
- Defensa Pirc: Kholmov System 1062
- Lion Defense: Anti-Philidor 655
- Lion Defense: Anti-Philidor, Lion's Cave 471
- Defensa Pirc: Sveshnikov System 169
- Defensa Pirc: Bayonet Attack 122
- Defensa Pirc: 150 Attack 115
- Defensa Pirc: Classical Variation 9545
- Defensa Pirc: Classical Variation 7272
- Defensa Pirc: Classical Variation, Schlechter Variation 1154
- Defensa Pirc: Classical Variation, Quiet System 823
- Defensa Pirc: Austrian Attack 3169
- Defensa Pirc: Austrian Attack 1551
- Defensa Pirc: Austrian Attack, Weiss Variation 607
- Defensa Pirc: Austrian Attack, Unzicker Attack 291
- Defensa Pirc: Austrian Attack, Dragon Formation 263
- Defensa Pirc: Austrian Attack, Kurajica Variation 107
- Defensa Caro-Kann 238k
- Defensa Caro-Kann 18k
- Defensa Caro-Kann 17k
- Defensa Caro-Kann: Two Knights Attack 13k
- Defensa Caro-Kann: Hillbilly Attack 10k
- Defensa Caro-Kann: Accelerated Panov Attack 8022
- Defensa Caro-Kann: Accelerated Panov Attack 6708
- Defensa Caro-Kann: Breyer Variation 5800
- Defensa Caro-Kann: Endgame Offer 3057
- Defensa Caro-Kann: Accelerated Panov Attack, Modern Variation 2293
- Defensa Caro-Kann: Dinic Gambit 1170
- Defensa Caro-Kann: Euwe Attack 695
- Defensa Caro-Kann: Endgame Variation 666
- Defensa Caro-Kann: Goldman Variation 663
- Defensa Caro-Kann: Apocalypse Attack 561
- Defensa Caro-Kann: Accelerated Panov Attack, Open Variation 367
- Defensa Caro-Kann: Hillbilly Attack, Schaeffer Gambit 249
- Defensa Caro-Kann: Toikkanen Gambit 101
- Defensa Caro-Kann: Two Knights Attack, Mindeno Variation 2961
- Defensa Caro-Kann: Two Knights Attack, Mindeno Variation, Exchange Line 1027
- Defensa Caro-Kann: Two Knights Attack, Mindeno Variation, Retreat Line 441
- Defensa Caro-Kann 131k
- Defensa Caro-Kann 124k
- Defensa Caro-Kann: Advance Variation 44k
- Defensa Caro-Kann: Advance Variation, Botvinnik-Carls Defense 14k
- Defensa Caro-Kann: Advance Variation, Short Variation 7813
- Defensa Caro-Kann: Modern Variation 6446
- Defensa Caro-Kann: Maróczy Variation 5870
- Defensa Caro-Kann: Advance Variation, Tal Variation 4370
- Defensa Caro-Kann: Advance Variation, Bayonet Attack 2050
- Defensa Caro-Kann: Advance Variation, Van der Wiel Attack 1682
- Defensa Caro-Kann: Advance Variation, Bronstein Variation 527
- Defensa Caro-Kann: Maróczy Variation, Maróczy Gambit 457
- Defensa Caro-Kann: Ulysses Gambit 405
- Defensa Caro-Kann: Masi Variation 215
- Defensa Caro-Kann: Mieses Gambit 186
- Defensa Caro-Kann: Advance Variation, Van der Wiel Attack 120
- Defensa Caro-Kann: Exchange Variation 39k
- Defensa Caro-Kann: Exchange Variation 39k
- Defensa Caro-Kann: Exchange Variation 16k
- Defensa Caro-Kann: Panov Attack 9619
- Defensa Caro-Kann: Panov Attack 4352
- Defensa Caro-Kann: Panov Attack, Modern Defense 1952
- Defensa Caro-Kann: Exchange Variation, Rubinstein Variation 1923
- Defensa Caro-Kann: Panov Attack, Modern Defense, Mieses Line 1145
- Defensa Caro-Kann: Exchange Variation 1025
- Defensa Caro-Kann: Panov Attack, Gunderam Attack 234
- Defensa Caro-Kann: Panov Attack, Modern Defense, Carlsbad Line 143
- Defensa Caro-Kann: Panov Attack 1745
- Defensa Caro-Kann: Panov Attack, Fianchetto Defense 513
- Defensa Caro-Kann: Panov Attack, Main Line 261
- Defensa Caro-Kann 32k
- Defensa Caro-Kann: Main Line 28k
- Defensa Caro-Kann 26k
- Defensa Caro-Kann: Tartakower Variation 8013
- Defensa Caro-Kann: Rasa-Studier Gambit 1867
- Defensa Caro-Kann: Campomanes Attack 1801
- Defensa Caro-Kann: von Hennig Gambit 1316
- Defensa Caro-Kann: Alien Gambit 1098
- Defensa Caro-Kann: Forgacs Variation 933
- Defensa Caro-Kann: Gurgenidze System 475
- Defensa Caro-Kann: Alekhine Gambit 413
- Defensa Caro-Kann: Tartakower Variation, Perlis Line 124
- Defensa Caro-Kann: Gurgenidze Counterattack 120
- Defensa Caro-Kann: Bronstein-Larsen Variation 666
- Defensa Caro-Kann: Finnish Variation 107
- Defensa Caro-Kann: Karpov Variation 2630
- Defensa Caro-Kann: Karpov Variation, Modern Variation, Kasparov Attack 392
- Defensa Caro-Kann: Karpov Variation, Modern Variation 213
- Defensa Caro-Kann: Classical Variation 9635
- Defensa Caro-Kann: Classical Variation, Main Line 2167
- Defensa Caro-Kann: Classical Variation, Maróczy Attack 200
- Defensa Caro-Kann: Classical Variation, Flohr Variation 146
- Defensa Caro-Kann: Classical Variation 1167
- Defensa Caro-Kann: Classical Variation, Spassky Variation 860
- Defensa Caro-Kann: Classical Variation, Lobron System 87
- Defensa Siciliana 538k
- Defensa Siciliana: Bowdler Attack 37k
- Defensa Siciliana: Wing Gambit 6867
- Defensa Siciliana: Staunton-Cochrane Variation 6499
- Defensa Siciliana: Mengarini Variation 5640
- Defensa Siciliana: Czerniak Attack 3103
- Defensa Siciliana: Lasker-Dunne Attack 2977
- Defensa Siciliana: Wing Gambit, Marshall Variation 2299
- Defensa Siciliana: Keres Variation 2061
- Defensa Siciliana: Wing Gambit, Carlsbad Variation 1188
- Defensa Siciliana: Wing Gambit, Abrahams Variation 259
- Defensa Siciliana: Myers Attack, with a4 169
- Defensa Siciliana: Kronberger Variation 146
- Defensa Siciliana: Smith-Morra Gambit 42k
- Defensa Siciliana: McDonnell Attack 30k
- Defensa Siciliana: Smith-Morra Gambit 23k
- Defensa Siciliana: Smith-Morra Gambit Accepted 14k
- Defensa Siciliana: Morphy Gambit 4679
- Defensa Siciliana: Smith-Morra Gambit Declined, Push Variation 2142
- Defensa Siciliana: Smith-Morra Gambit Declined, Alapin Formation 1968
- Defensa Siciliana: Smith-Morra Gambit Declined, Scandinavian Formation 1345
- Defensa Siciliana: Smith-Morra Gambit Accepted, Paulsen Formation 1277
- Defensa Siciliana: Smith-Morra Gambit Declined, Center Formation 1210
- Defensa Siciliana: Smith-Morra Gambit Accepted, Kan Formation 1100
- Defensa Siciliana: Smith-Morra Gambit Accepted, Scheveningen Formation 1003
- Defensa Siciliana: Smith-Morra Gambit Accepted, Pin Defense 948
- Defensa Siciliana: Smith-Morra Gambit Accepted, Fianchetto Defense 840
- Defensa Siciliana: Smith-Morra Gambit Accepted, Fianchetto Defense 794
- Defensa Siciliana: McDonnell Attack, Tal Gambit 464
- Defensa Siciliana: Morphy Gambit, Andreaschek Gambit 367
- Defensa Siciliana: Halasz Gambit 320
- Apertura Bird: Dutch Variation, Batavo Gambit 309
- Defensa Siciliana: Smith-Morra Gambit Accepted, Danish Variation 266
- Defensa Siciliana: Smith-Morra Gambit Accepted, Classical Formation 185
- Defensa Siciliana: McDonnell Attack, Toilet Variation 185
- Defensa Siciliana: Smith-Morra Gambit Declined, Dubois Variation 161
- Defensa Siciliana: Smith-Morra Gambit Accepted, Fianchetto Defense 123
- Defensa Siciliana: Smith-Morra Gambit Accepted, Fianchetto Defense 106
- Defensa Siciliana: Smith-Morra Gambit Accepted, Morphy Defense 95
- Defensa Siciliana: Smith-Morra Gambit Accepted, Siberian Variation 80
- Defensa Siciliana: Alapin Variation 40k
- Defensa Siciliana: Alapin Variation, Barmen Defense 5635
- Defensa Siciliana: Alapin Variation, Smith-Morra Declined 4460
- Defensa Siciliana: Alapin Variation, Barmen Defense 2368
- Defensa Siciliana: Alapin Variation, Barmen Defense, Central Exchange 1568
- Defensa Siciliana: Delayed Alapin Variation 966
- Defensa Siciliana: Alapin Variation, Barmen Defense, Modern Line 547
- Defensa Siciliana: Alapin Variation, Anti-Alapin Gambit 511
- Defensa Siciliana: Alapin Variation, Barmen Defense 424
- Defensa Siciliana: Alapin Variation, Stoltz Attack 337
- Defensa Siciliana: Closed 55k
- Defensa Siciliana: Closed, Traditional 25k
- Defensa Siciliana: Closed 13k
- Defensa Siciliana: Grand Prix Attack 7196
- Defensa Siciliana: Closed 2060
- Defensa Siciliana: Closed, Chameleon Variation 805
- Defensa Siciliana: Closed, Korchnoi Defense 504
- Defensa Siciliana: Closed, Carlsen Variation 216
- Defensa Siciliana: Grand Prix Attack, Schofman Variation 110
- Defensa Siciliana: Closed, Fianchetto Variation 3701
- Defensa Siciliana: Closed 2024
- Defensa Siciliana: Closed 1825
- Defensa Siciliana: Closed 688
- Defensa Siciliana: Closed 134
- Defensa Siciliana: Closed 317
- Defensa Siciliana 296k
- Defensa Siciliana: Hyperaccelerated Dragon 14k
- Defensa Siciliana: Hyperaccelerated Dragon 7837
- Defensa Siciliana: Hyperaccelerated Pterodactyl 2503
- Defensa Siciliana: Katalimov Variation 821
- Defensa Siciliana: Jalalabad Variation 381
- Defensa Pterodáctilo: Western, Rhamphorhynchus 352
- Defensa Siciliana: Quinteros Variation 227
- Defensa Pterodáctilo: Sicilian, Rhamphorhynchus 104
- Defensa Siciliana: Bücker Variation 103
- Defensa Siciliana: O'Kelly Variation 7476
- Defensa Siciliana: O'Kelly Variation, Normal System 3579
- Defensa Siciliana: O'Kelly Variation, Venice System 1317
- Defensa Siciliana: O'Kelly Variation, Yerevan System 987
- Defensa Siciliana: O'Kelly Variation, Normal System, Taimanov Line 595
- Defensa Siciliana: O'Kelly Variation, Maróczy Bind 521
- Defensa Siciliana: O'Kelly Variation, Maróczy Bind, Paulsen Line 378
- Defensa Siciliana: O'Kelly Variation, Venice System, Steiner Line 372
- Defensa Siciliana: O'Kelly Variation, Réti System 184
- Defensa Siciliana: O'Kelly Variation, Normal System, Smith-Morra Line 182
- Defensa Siciliana: O'Kelly Variation, Aronin System 122
- Defensa Siciliana: O'Kelly Variation, Quiet System 120
- Defensa Siciliana: O'Kelly Variation, Normal System, Zagorovsky Line 120
- Defensa Siciliana: O'Kelly Variation, Venice System, Barcza Line 91
- Defensa Siciliana: O'Kelly Variation, Kieseritzky System 84
- Defensa Siciliana: O'Kelly Variation, Venice System, Ljubojevic Line 82
- Defensa Siciliana: Nimzowitsch Variation 2068
- Defensa Siciliana: Nimzowitsch Variation, Advance Variation 851
- Defensa Siciliana: Nimzowitsch Variation, Closed Variation 809
- Defensa Siciliana: Old Sicilian 127k
- Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack 19k
- Defensa Siciliana: Closed, Anti-Sveshnikov Variation 1614
- Defensa Siciliana: Portsmouth Gambit 1609
- Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation 4896
- Defensa Siciliana: Open 59k
- Defensa Siciliana: Open 58k
- Defensa Siciliana: Open 55k
- Defensa Siciliana: Löwenthal Variation 15k
- Defensa Siciliana: Accelerated Dragon 14k
- Defensa Siciliana: Kalashnikov Variation 4218
- Defensa Siciliana: Franco-Sicilian Variation 1344
- Defensa Siciliana: Godiva Variation 869
- Defensa Siciliana: Nimzo-American Variation 358
- Defensa Siciliana: Flohr Variation 329
- Defensa Siciliana: O'Kelly Variation, Maróczy Bind, Geller Line 129
- Defensa Siciliana: Open 12k
- Defensa Siciliana: Lasker-Pelikan Variation 4814
- Defensa Siciliana: Lasker-Pelikan Variation, Sveshnikov Variation 1426
- Defensa Siciliana: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation 1369
- Defensa Siciliana: Lasker-Pelikan Variation, Schlechter Variation 1140
- Defensa Siciliana: Lasker-Pelikan Variation, Retreat Variation 846
- Defensa Siciliana: Lasker-Pelikan Variation, Exchange Variation 621
- Defensa Siciliana: Lasker-Pelikan Variation, Sveshnikov Variation 245
- Defensa Siciliana: Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk Variation 192
- Defensa Siciliana: Accelerated Dragon, Modern Variation 7601
- Defensa Siciliana: Accelerated Dragon, Exchange Variation 2632
- Defensa Siciliana: Accelerated Dragon, Modern Bc4 Variation 1796
- Defensa Siciliana: Dragon Variation, Modern Bc4 Variation 276
- Defensa Siciliana: Accelerated Dragon, Maróczy Bind 2483
- Defensa Siciliana: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation 149
- Defensa Siciliana: Accelerated Dragon, Maróczy Bind 2307
- Defensa Siciliana: Accelerated Dragon, Maróczy Bind 2144
- Defensa Siciliana: Accelerated Dragon, Maróczy Bind, Breyer Variation 136
- Defensa Siciliana: French Variation 61k
- Defensa Siciliana: French Variation, Open 31k
- Defensa Siciliana: Delayed Alapin Variation, with e6 9323
- Defensa Siciliana: French Variation, Normal 5761
- Defensa Siciliana: Marshall Counterattack 2322
- Defensa Siciliana: Kramnik Variation 2156
- Defensa Siciliana: Smith-Morra Gambit Deferred 1777
- Defensa Siciliana: Paulsen-Basman Defense 1294
- Defensa Siciliana: Pin Variation 1151
- Defensa Siciliana: French Variation, Westerinen Attack 981
- Defensa Siciliana: Drazic Variation 958
- Defensa Siciliana: Wing Gambit Deferred 518
- Defensa Siciliana: Kveinis Variation 244
- Defensa Siciliana: Pin Variation, Koch Variation 204
- Defensa Siciliana: Alapin Variation, Sherzer Variation 148
- Defensa Siciliana: Kan Variation 10k
- Defensa Siciliana: Kan Variation, Maróczy Bind, Réti Variation 2028
- Defensa Siciliana: Kan Variation, Modern Variation 1285
- Defensa Siciliana: Kan Variation, Polugaevsky Variation 171
- Defensa Siciliana: Kan Variation, Knight Variation 6578
- Defensa Siciliana: Kan Variation, Wing Attack 1267
- Defensa Siciliana: Taimanov Variation 14k
- Defensa Siciliana: Taimanov Variation, Szén Variation 655
- Defensa Siciliana: Taimanov Variation 9852
- Defensa Siciliana: Four Knights Variation 5962
- Defensa Siciliana: Four Knights Variation, Exchange Variation 1317
- Defensa Siciliana: Four Knights Variation, Sveshnikov Transfer 251
- Defensa Siciliana: Four Knights Variation, Cobra Variation 119
- Defensa Siciliana: Taimanov Variation 3319
- Defensa Siciliana: Taimanov Variation, Bastrikov Variation 1881
- Defensa Siciliana: Taimanov Variation, Bastrikov Variation, English Attack 883
- Defensa Siciliana: Taimanov Variation, Bastrikov Variation 280
- Defensa Siciliana: Modern Variations 88k
- Defensa Siciliana 50k
- Defensa Siciliana 49k
- Defensa Siciliana: Delayed Alapin Variation, with d6 9717
- Defensa Siciliana: Modern Variations, Tartakower 1939
- Defensa Siciliana: Modern Variations, Anti-Qxd4 Move Order 588
- Defensa Siciliana: Wing Gambit, Deferred Variation 312
- Defensa Siciliana: Modern Variations, Anti-Qxd4 Move Order Accepted 94
- Defensa Siciliana: Delayed Alapin Variation, Basman-Palatnik Gambit 87
- Defensa Siciliana: Kopec System 82
- Defensa Siciliana: Moscow Variation 6778
- Defensa Siciliana: Moscow Variation, Main Line 3784
- Defensa Siciliana: Moscow Variation, Sokolsky Variation 317
- Defensa Siciliana: Chekhover Variation 2904
- Defensa Siciliana: Modern Variations, Main Line 35k
- Defensa Siciliana: Prins Variation 1097
- Defensa Siciliana: Dragon Variation, Accelerated Dragon 1001
- Defensa Siciliana: Modern Variations, Ginsberg Gambit 164
- Defensa Siciliana: Classical Variation 6209
- Defensa Siciliana: Classical Variation, Sozin Attack 841
- Defensa Siciliana: Classical Variation, Anti-Sozin Variation 106
- Defensa Siciliana: Classical Variation 598
- Defensa Siciliana: Boleslavsky Variation 181
- Defensa Siciliana: Boleslavsky Variation 113
- Defensa Siciliana: Richter-Rauzer Variation 1296
- Defensa Siciliana: Richter-Rauzer Variation, Modern Variation 167
- Defensa Siciliana: Richter-Rauzer Variation, Modern Variation 99
- Defensa Siciliana: Richter-Rauzer Variation 776
- Defensa Siciliana: Richter-Rauzer Variation, Traditional Variation 478
- Defensa Siciliana: Richter-Rauzer Variation, Classical Variation 182
- Defensa Siciliana: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations 248
- Defensa Siciliana: Richter-Rauzer Variation, Neo-Modern Variation 155
- Defensa Siciliana: Dragon Variation 7462
- Defensa Siciliana: Dragon Variation, Classical Variation 692
- Defensa Siciliana: Dragon Variation, Fianchetto Variation 118
- Defensa Siciliana: Dragon Variation, Levenfish Variation 269
- Defensa Siciliana: Dragon Variation 3101
- Defensa Siciliana: Dragon Variation, Classical Variation 592
- Defensa Siciliana: Dragon Variation, Classical Variation 313
- Defensa Siciliana: Dragon Variation, Yugoslav Attack, Early Deviations 2690
- Defensa Siciliana: Dragon Variation, Yugoslav Attack, Belezky Line 908
- Defensa Siciliana: Dragon Variation, Yugoslav Attack 2142
- Defensa Siciliana: Dragon Variation, Yugoslav Attack 2060
- Defensa Siciliana: Dragon Variation, Yugoslav Attack, Modern Line 1160
- Defensa Siciliana: Dragon Variation, Yugoslav Attack, Panov Variation 112
- Defensa Siciliana: Dragon Variation, Yugoslav Attack, Main Line 654
- Defensa Siciliana: Dragon Variation, Yugoslav Attack, Main Line 411
- Defensa Siciliana: Dragon Variation, Yugoslav Attack, Main Line 126
- Defensa Siciliana: Dragon Variation, Yugoslav Attack 222
- Defensa Siciliana: Dragon Variation, Yugoslav Attack, Old Line 133
- Defensa Siciliana: Scheveningen Variation 1967
- Defensa Siciliana: Scheveningen Variation, English Attack, with Qd2 102
- Defensa Siciliana: Scheveningen Variation, Keres Attack 167
- Defensa Siciliana: Scheveningen Variation, Classical Variation 190
- Defensa Siciliana: Scheveningen Variation, Classical Variation 628
- Defensa Siciliana: Sozin Attack 519
- Defensa Siciliana: Sozin Attack, Flank Variation 181
- Defensa Siciliana: Sozin Attack, Leonhardt Variation 231
- Defensa Siciliana: Najdorf Variation 22k
- Defensa Siciliana: Najdorf Variation, English Attack 4192
- Defensa Siciliana: Najdorf Variation, Lipnitsky Attack 2558
- Defensa Siciliana: Najdorf Variation, Yates Variation 1561
- Defensa Siciliana: Najdorf Variation, English Attack 1272
- Defensa Siciliana: Najdorf Variation, Adams Attack 963
- Defensa Siciliana: Scheveningen Variation, English Attack, with f3 735
- Defensa Siciliana: Najdorf Variation, English Attack 513
- Defensa Siciliana: Najdorf Variation, Petronić Attack 301
- Defensa Siciliana: Najdorf Variation, English Attack, Anti-English 266
- Defensa Siciliana: Najdorf Variation, Zagreb Variation 316
- Defensa Siciliana: Najdorf Variation, Opocensky Variation 2372
- Defensa Siciliana: Najdorf Variation, Opocensky Variation 322
- Defensa Siciliana: Najdorf Variation, Opocensky Variation, Modern Line 107
- Defensa Siciliana: Najdorf Variation, Opocensky Variation, Traditional Line 107
- Defensa Siciliana: Najdorf Variation, Amsterdam Variation 513
- Defensa Siciliana: Najdorf Variation 5049
- Defensa Siciliana: Najdorf Variation 3473
- Defensa Siciliana: Najdorf Variation 2051
- Defensa Siciliana: Najdorf Variation, Poisoned Pawn Variation 280
- Defensa Siciliana: Najdorf Variation, Poisoned Pawn Accepted 121
- Defensa Siciliana: Najdorf Variation 1158
- Defensa Siciliana: Najdorf Variation, Traditional Line 508
- Defensa Siciliana: Najdorf Variation, Main Line 407
ECO C
- Defensa Francesa 266k
- Defensa Francesa: Normal Variation 156k
- Defensa Francesa 121k
- Defensa Francesa: Knight Variation 61k
- Defensa Francesa: Queen's Knight 15k
- Defensa Francesa: La Bourdonnais Variation 14k
- Defensa Francesa: Franco-Sicilian Defense 11k
- Defensa Rata: Small Center Defense 8641
- Defensa Francesa: King's Indian Attack 8510
- Defensa Francesa: Steiner Variation 7031
- Defensa Francesa: Two Knights Variation 5452
- Defensa Francesa: Schlechter Variation 3354
- Defensa Francesa: Steinitz Attack 3178
- Defensa Francesa: Horwitz Attack 2611
- Defensa Francesa: Mediterranean Defense 1985
- Defensa Francesa: Wing Gambit 1684
- Defensa Francesa: Chigorin Variation 1589
- Defensa Francesa: Horwitz Attack, Papa-Ticulat Gambit 1527
- Defensa Francesa: St. George Defense 1297
- Defensa Francesa: Perseus Gambit 970
- Defensa Francesa: Réti-Spielmann Attack 910
- Defensa Francesa: Alapin Gambit 812
- Defensa Francesa: Pelikan Variation 794
- Defensa Francesa: Diemer-Duhm Gambit 781
- Defensa Francesa: Diemer-Duhm Gambit Accepted 511
- Defensa Francesa: Orthoschnapp Gambit 470
- Defensa Francesa: Franco-Hiva Gambit 419
- Defensa Francesa: La Bourdonnais Variation, Reuter Gambit 253
- Defensa Francesa: Bird Invitation 249
- Defensa Francesa: Franco-Hiva Gambit Accepted 219
- Defensa Francesa: St. George Defense, Three Pawn Attack 218
- Defensa Francesa: Carlson Gambit 164
- Defensa Francesa: Knight Variation, Franco-Hiva Gambit 120
- Defensa Francesa: Exchange Variation 37k
- Defensa Francesa: Exchange Variation 35k
- Defensa Francesa: Exchange Variation 9288
- Defensa Francesa: Exchange Variation, Monte Carlo Variation 5823
- Defensa Francesa: Exchange Variation, Svenonius Variation 1196
- Defensa Francesa: Advance Variation 40k
- Defensa Francesa: Advance Variation 36k
- Defensa Francesa: Advance Variation 29k
- Defensa Francesa: Advance Variation 21k
- Defensa Francesa: Advance Variation, Paulsen Attack 18k
- Defensa Francesa: Advance Variation, Nimzowitsch System 5978
- Defensa Francesa: Advance Variation, Euwe Variation 4537
- Defensa Francesa: Advance Variation, Milner-Barry Gambit 3289
- Defensa Francesa: Advance Variation, Main Line 2357
- Defensa Francesa: Advance Variation, Kupreichik Variation 957
- Defensa Francesa: Advance Variation, Milner-Barry Gambit, Main Line 894
- Defensa Francesa: Advance Variation, Extended Bishop Swap 818
- Defensa Francesa: Advance Variation, Wade Variation 673
- Defensa Francesa: Advance Variation, Nimzowitsch Attack 644
- Defensa Francesa: Advance Variation, Steinitz Variation 641
- Defensa Francesa: Advance Variation, Milner-Barry Gambit, Hector Variation 337
- Defensa Francesa: Advance Variation, Milner-Barry Gambit, Hector Variation 307
- Defensa Francesa: Advance Variation, Nimzowitsch Gambit 209
- Defensa Francesa: Advance Variation, Lputian Variation 208
- Defensa Francesa: Advance Variation, Ruisdonk Gambit 141
- Defensa Francesa: Tarrasch Variation 14k
- Defensa Francesa: Tarrasch Variation, Guimard Defense 677
- Defensa Francesa: Tarrasch Variation, Morozevich Variation 281
- Defensa Francesa: Tarrasch Variation, Modern System 207
- Defensa Francesa: Tarrasch Variation, Haberditz Variation 118
- Defensa Francesa: Tarrasch Variation, Guimard Defense, Main Line 283
- Defensa Francesa: Tarrasch Variation, Closed Variation 4853
- Defensa Francesa: Tarrasch Variation, Closed Variation 1814
- Defensa Francesa: Tarrasch Variation, Pawn Center Variation 717
- Defensa Francesa: Tarrasch Variation, Closed Variation, Main Line 555
- Defensa Francesa: Tarrasch Variation, Open System 3699
- Defensa Francesa: Tarrasch Variation, Open System, Euwe-Keres Line 1076
- Defensa Francesa: Tarrasch Variation, Open System, Süchting Line 947
- Defensa Francesa: Tarrasch Variation, Chistyakov Defense 569
- Defensa Francesa: Tarrasch Variation, Open System 775
- Defensa Francesa: Tarrasch Variation, Open System, Main Line 380
- Defensa Francesa: Paulsen Variation 33k
- Defensa Francesa: Rubinstein Variation 8076
- Defensa Francesa: Rubinstein Variation, Blackburne Defense 3276
- Defensa Francesa: Marshall Gambit 2281
- Defensa Francesa: Rubinstein Variation, Fort Knox Variation 822
- Defensa Francesa: Hecht-Reefschläger Variation 527
- Defensa Francesa: Classical Variation 15k
- Defensa Francesa: Classical Variation, Steinitz Variation 7982
- Defensa Francesa: Classical Variation 5221
- Defensa Francesa: Steinitz Variation 3340
- Defensa Francesa: Steinitz Variation, Boleslavsky Variation 2174
- Defensa Francesa: Classical Variation, Burn Variation 1511
- Defensa Francesa: Classical Variation, Shirov-Anand Variation 979
- Defensa Francesa: Classical Variation, Delayed Exchange Variation 945
- Defensa Francesa: Classical Variation, Swiss Variation 554
- Defensa Francesa: Classical Variation, Burn Variation, Morozevich Line 167
- Defensa Francesa: Classical Variation, Burn Variation, Main Line 86
- Defensa Francesa: Henneberger Variation 85
- Defensa Francesa: Steinitz Variation 80
- Defensa Francesa: McCutcheon Variation 609
- Defensa Francesa: McCutcheon Variation, Advance Variation 511
- Defensa Francesa: McCutcheon Variation, Lasker Variation 189
- Defensa Francesa: McCutcheon Variation, Chigorin Variation 132
- Defensa Francesa: Classical Variation, Normal Variation 2771
- Defensa Francesa: Classical Variation 1912
- Defensa Francesa: Alekhine-Chatard Attack 724
- Defensa Francesa: Classical Variation, Richter Attack 321
- Defensa Francesa: Alekhine-Chatard Attack, Albin-Chatard Gambit 174
- Defensa Francesa: Alekhine-Chatard Attack, Maróczy Variation 158
- Defensa Francesa: Alekhine-Chatard Attack, Breyer Variation 88
- Defensa Francesa: Classical Variation 992
- Defensa Francesa: Classical Variation, Steinitz Variation 492
- Defensa Francesa: Classical Variation, Pollock Variation 100
- Defensa Francesa: Winawer Variation 7838
- Defensa Francesa: Winawer Variation, Delayed Exchange Variation 1252
- Defensa Francesa: Winawer Variation, Alekhine-Maróczy Gambit 519
- Defensa Francesa: Winawer Variation, Fingerslip Variation 319
- Defensa Francesa: Winawer Variation, Alekhine Gambit Accepted 168
- Defensa Francesa: Winawer Variation, Advance Variation 4033
- Defensa Francesa: Winawer Variation, Petrosian Variation 141
- Defensa Francesa: Winawer Variation, Advance Variation 2875
- Defensa Francesa: Winawer Variation, Advance Variation 2105
- Defensa Francesa: Winawer Variation, Maróczy-Wallis Variation 286
- Defensa Francesa: Winawer Variation, Bogoljubow Variation 242
- Defensa Francesa: Winawer Variation, Retreat Variation 200
- Defensa Francesa: Winawer Variation, Advance Variation, Moscow Variation 109
- Defensa Francesa: Winawer Variation, Advance Variation 1501
- Defensa Francesa: Winawer Variation, Advance Variation 864
- Defensa Francesa: Winawer Variation, Classical Variation 245
- Defensa Francesa: Winawer Variation, Poisoned Pawn Variation 230
- Defensa Francesa: Winawer Variation, Portisch-Hook Variation 191
- Defensa Francesa: Winawer Variation, Poisoned Pawn Variation, Main Line 87
- Defensa Francesa: Winawer Variation, Positional Variation 141
- Apertura de Peón de Rey 749k
- Apertura del Centro 47k
- Apertura de Peón de Rey: Leonardis Variation 15k
- Apertura de Peón de Rey: MacLeod Attack 5225
- Apertura de Peón de Rey: Wayward Queen Attack 3752
- Apertura Inglesa: The Whale 3551
- Apertura de Peón de Rey: Napoleon Attack 2469
- Apertura de Peón de Rey: Alapin Opening 1469
- Apertura de Peón de Rey: King's Head Opening 1103
- King's Pawn Opening 1053
- Apertura de Peón de Rey: Beyer Gambit 1002
- Apertura de Peón de Rey: Mengarini's Opening 922
- Portuguese Opening 547
- Apertura de Peón de Rey: Clam Variation, King's Gambit Reversed 341
- Apertura de Peón de Rey: Wayward Queen Attack, Kiddie Countergambit 281
- Apertura de Peón de Rey: Tortoise Opening 180
- Apertura de Peón de Rey: MacLeod Attack, Lasa Gambit 104
- Barnes Opening: Walkerling 102
- Center Game Accepted 35k
- Gambito Danés 15k
- Danish Gambit Accepted 9900
- Apertura del Centro 8483
- Apertura del Centro: Kieseritzky Variation 8185
- Apertura del Centro: Halasz-McDonnell Gambit 1908
- Apertura del Centro: Kieseritzky Variation 1515
- Apertura del Centro: von der Lasa Gambit 1500
- Danish Gambit Declined: Sörensen Defense 1432
- Danish Gambit Accepted: Copenhagen Defense 1141
- Apertura del Centro: Kieseritzky Variation 973
- Danish Gambit Accepted: Classical Defense 480
- Apertura del Centro: Ross Gambit 300
- Danish Gambit Accepted: Schlechter Defense 289
- Danish Gambit Accepted: Chigorin Defense 203
- Apertura del Centro: Lanc-Arnold Gambit 111
- Apertura del Centro: Normal Variation 7194
- Apertura del Centro: Paulsen Attack Variation 3648
- Apertura del Centro: Berger Variation 1223
- Apertura del Centro: Hall Variation 327
- Apertura del Alfil 69k
- Apertura del Alfil: Boi Variation 8213
- Apertura del Alfil: Philidor Counterattack 1986
- Apertura del Alfil: Calabrese Countergambit 878
- Apertura del Alfil: Lewis Gambit 536
- Apertura del Alfil: Philidor Variation 477
- Apertura del Alfil: Khan Gambit 440
- Apertura del Alfil: Calabrese Countergambit, Jaenisch Variation 200
- Apertura del Alfil: Stein Gambit 141
- Apertura del Alfil: Berlin Defense 22k
- Apertura del Alfil: Vienna Hybrid 5995
- Apertura del Alfil: Ponziani Gambit 2530
- Apertura del Alfil: Paulsen Defense 1388
- Apertura del Alfil: Berlin Defense, Greco Gambit 167
- Apertura Vienesa 56k
- Apertura Vienesa: Max Lange Defense 24k
- Apertura Vienesa: Anderssen Defense 4868
- Vienna Gambit, with Max Lange Defense 3555
- Vienna Gambit, with Max Lange Defense: Knight Variation 1328
- Apertura Vienesa: Paulsen Variation 1152
- Apertura Vienesa: Omaha Gambit 1048
- Apertura Vienesa: Stanley Variation, Meitner-Mieses Gambit 601
- Vienna Gambit, with Max Lange Defense: Steinitz Gambit 115
- Vienna Gambit, with Max Lange Defense: Pierce Gambit 101
- Vienna Gambit, with Max Lange Defense: Cunningham Defense 90
- Apertura Vienesa: Falkbeer Variation 20k
- Apertura Vienesa: Stanley Variation 8328
- Apertura del Alfil: Vienna Hybrid, Spielmann Attack 2230
- Apertura Vienesa: Stanley Variation, Reversed Spanish 1009
- Apertura Vienesa: Mieses Variation 762
- Apertura Vienesa: Mengarini Variation 325
- Apertura Vienesa: Frankenstein-Dracula Variation 1016
- Apertura del Alfil: Boden-Kieseritzky Gambit 368
- Apertura Vienesa: Stanley Variation, Three Knights Variation 8123
- Apertura del Alfil: Vienna Hybrid, Hromádka Variation 348
- Apertura Vienesa: Vienna Gambit 7646
- Apertura Vienesa: Vienna Gambit, Main Line 2673
- Apertura Vienesa: Vienna Gambit, Paulsen Attack 1111
- Apertura Vienesa: Vienna Gambit, Bardeleben Variation 232
- Apertura Vienesa: Vienna Gambit, Modern Variation 177
- Gambito de Rey 68k
- Gambito de Rey Rehusado: Queen's Knight Defense 16k
- Gambito de Rey Rehusado: Classical Variation 2628
- Gambito de Rey Rehusado: Petrov's Defense 1566
- Gambito de Rey Rehusado: Keene's Defense 806
- Gambito de Rey Rehusado: Keene's Defense 803
- Gambito de Rey Rehusado: Keene Defense 481
- Gambito de Rey Rehusado: Mafia Defense 477
- Gambito de Rey Rehusado: Classical Variation 460
- Gambito de Rey Rehusado: Miles Defense 422
- Gambito de Rey Rehusado: Panteldakis Countergambit 327
- Gambito de Rey Rehusado: Norwalde Variation 265
- Gambito de Rey Rehusado: Classical, Soldatenkov Variation 177
- Gambito de Rey Rehusado: Falkbeer Countergambit 10k
- Gambito de Rey Rehusado: Falkbeer Countergambit Accepted 6403
- Gambito de Rey Rehusado: Falkbeer Countergambit, Staunton Line 2457
- Gambito de Rey Rehusado: Falkbeer Countergambit, Modern Transfer 2185
- Gambito de Rey Rehusado: Falkbeer Countergambit, Blackburne Attack 2146
- Gambito de Rey Rehusado: Falkbeer Countergambit, Charousek Gambit 806
- Gambito de Rey Rehusado: Falkbeer Countergambit, Nimzowitsch-Marshall Countergambit 474
- Gambito de Rey Rehusado: Falkbeer Countergambit, Milner-Barry Variation 461
- Gambito de Rey Rehusado: Falkbeer Countergambit, Hinrichsen Gambit 267
- Apertura Van Geet: Grünfeld Defense, Steiner Gambit 116
- Gambito de Rey Rehusado: Falkbeer Countergambit, Charousek Gambit Accepted 236
- Gambito de Rey Aceptado 28k
- Gambito de Rey Aceptado: Bishop's Gambit 1926
- Gambito de Rey Aceptado: Bishop's Gambit, Maurian Defense 592
- Gambito de Rey Aceptado: Villemson Gambit 425
- Gambito de Rey Aceptado: Bishop's Gambit, Cozio Defense 258
- Gambito de Rey Aceptado: Bishop's Gambit, Anderssen Defense 232
- Gambito de Rey Aceptado: Bishop's Gambit, Bogoljubow Variation 140
- Gambito de Rey Aceptado: Bishop's Gambit, Greco Variation 122
- Gambito de Rey Aceptado: Bishop's Gambit, First Jaenisch Variation 99
- Gambito de Rey Aceptado: Mason-Keres Gambit 96
- Gambito de Rey Aceptado: King's Knight's Gambit 25k
- Gambito de Rey Aceptado: MacLeod Defense 6742
- Gambito de Rey Aceptado: King's Knight's Gambit 6154
- Gambito de Rey Aceptado: Fischer Defense 5240
- Gambito de Rey Aceptado: Schallopp Defense 1865
- Gambito de Rey Aceptado: Becker Defense 1328
- Gambito de Rey Aceptado: Bonsch-Osmolovsky Variation 867
- Gambito de Rey Aceptado: Fischer Defense, Spanish Variation 134
- Gambito de Rey Aceptado: Cunningham Defense 3246
- Gambito de Rey Aceptado: Cunningham Defense, Bertin Gambit 490
- Gambito de Rey Aceptado: Cunningham Defense, Bertin Gambit 270
- Gambito de Rey Aceptado: Cunningham Defense, McCormick Defense 142
- Gambito de Rey Aceptado: Modern Defense 3974
- Gambito de Rey Aceptado: Modern Defense 3473
- Gambito de Rey Aceptado: Abbazia Defense 1552
- Gambito de Rey Aceptado: King's Knight's Gambit 3486
- Gambito de Rey Aceptado: Rosentreter Gambit 784
- Gambito de Rey Aceptado: Muzio Gambit, Wild Muzio Gambit 552
- Gambito de Rey Aceptado: Blachly Gambit 538
- Gambito de Rey Aceptado: Salvio Gambit 445
- Gambito de Rey Aceptado: Muzio Gambit, Sarratt Defense 287
- Gambito de Rey Aceptado: Lolli Gambit 228
- Gambito de Rey Aceptado: Sörensen Gambit 155
- Gambito de Rey Aceptado: Salvio Gambit, Silberschmidt Defense 149
- Gambito de Rey Aceptado: Quaade Gambit 134
- Gambito de Rey Aceptado: Ghulam-Kassim Gambit 104
- Gambito de Rey Aceptado: Salvio Gambit, Anderssen Counterattack 103
- Gambito de Rey Aceptado: Rosentreter Gambit, Testa Variation 81
- Gambito de Rey Aceptado: Traditional Variation 686
- Gambito de Rey Aceptado: Hanstein Gambit 310
- Gambito de Rey Aceptado: King's Knight's Gambit 1430
- Gambito de Rey Aceptado: Kieseritzky Gambit 795
- Gambito de Rey Aceptado: Allgaier Gambit 366
- Gambito de Rey Aceptado: Kieseritzky Gambit, Long Whip 348
- Gambito de Rey Aceptado: Kieseritzky Gambit, Kolisch Defense 240
- Gambito de Rey Aceptado: Kieseritzky Gambit, Cotter Gambit 188
- Gambito de Rey Aceptado: Kieseritzky Gambit, Berlin Defense 83
- King's Knight Opening 477k
- Elephant Gambit 15k
- Apertura de Peón de Rey: Busch-Gass Gambit 9148
- Elephant Gambit: Paulsen Countergambit 6204
- Gambito Letón 5705
- Apertura de Peón de Rey: McConnell Defense 4791
- Latvian Gambit Accepted 1524
- Apertura de Peón de Rey: Damiano Defense 995
- Apertura de Peón de Rey: Gunderam Gambit 972
- Gunderam Defense 880
- Gambito Letón: Mlotkowski Variation 760
- Gambito Letón: Mason Countergambit 643
- Latvian Gambit Accepted: Main Line 613
- Gambito Letón: Mayet Attack 384
- Latvian Gambit Accepted: Bilguer Variation 381
- Elephant Gambit: Maróczy Gambit 337
- Apertura de Peón de Rey: Busch-Gass Gambit, Chiodini Gambit 213
- Gambito Letón: Fraser Defense 156
- Gambito Letón: Mayet Attack, Morgado Defense 123
- Gambito Letón: Greco Variation 105
- Elephant Gambit: Wasp Variation 91
- Latvian Gambit Accepted: Bronstein Attack 87
- Defensa Philidor 71k
- Defensa Philidor 31k
- Defensa Philidor 28k
- Defensa Philidor: Exchange Variation 18k
- Defensa Philidor: Exchange Variation 13k
- Defensa Philidor 9027
- Defensa Philidor: Exchange Variation 4872
- Defensa Philidor: Lion Variation 2604
- Defensa Philidor: Hanham Variation 2568
- Defensa Philidor: Morphy Gambit 1554
- Defensa Philidor: Steinitz Variation 1453
- Defensa Philidor: Bird Gambit 826
- Defensa Philidor: Lopez Countergambit 792
- Defensa Philidor: Nimzowitsch Variation 638
- Defensa Philidor: Philidor Countergambit 469
- Defensa Philidor: Nimzowitsch Variation 438
- Defensa Philidor: Larsen Variation 436
- Defensa Philidor: Nimzowitsch Variation, Klein Variation 329
- Defensa Philidor: Philidor Countergambit, Zukertort Variation 159
- Defensa Philidor: Albin-Blackburne Gambit 124
- Defensa Petrov 47k
- Defensa Petrov: Three Knights Game 22k
- Defensa Petrov 15k
- Defensa Petrov: Italian Variation 11k
- Defensa Petrov 6237
- Defensa Petrov 5386
- Defensa Petrov: Stafford Gambit 5304
- Defensa Petrov 5273
- Defensa Petrov: Stafford Gambit Accepted 4371
- Defensa Petrov: Stafford Gambit Accepted 2210
- Defensa Petrov: Classical Attack 2112
- Defensa Petrov: Damiano Variation 1544
- Defensa Petrov: Stafford Gambit Accepted 1369
- Defensa Petrov: Cozio Attack 1053
- Defensa Petrov: Nimzowitsch Attack 1013
- Defensa Petrov: Classical Attack, Marshall Variation 684
- Defensa Petrov: Damiano Variation, Kholmov Gambit 675
- Defensa Petrov: French Attack 576
- Defensa Petrov: Cochrane Gambit 445
- Defensa Petrov: Classical Attack, Staunton Variation 351
- Defensa Petrov: Paulsen Attack 277
- Defensa Petrov: Classical Attack, Mason-Showalter Variation 259
- Defensa Petrov: Cochrane Gambit, Bishop Check Line 182
- Defensa Petrov: Cochrane Gambit, Center Variation 152
- Defensa Petrov: Millennium Attack 134
- Defensa Petrov: Classical Attack, Mason Variation 124
- Defensa Petrov: Karklins-Martinovsky Variation 119
- Defensa Petrov: Classical Attack, Jaenisch Variation 88
- Defensa Petrov: Modern Attack 4664
- Defensa Petrov: Modern Attack 1943
- Apertura del Alfil: Urusov Gambit 1175
- Defensa Petrov: Modern Attack, Center Variation 692
- Defensa Petrov: Modern Attack, Symmetrical Variation 265
- Defensa Petrov: Modern Attack, Center Attack 216
- Apertura del Alfil: Urusov Gambit, Keidansky Gambit 188
- King's Knight Opening: Normal Variation 328k
- Apertura Escocesa 70k
- Apertura Escocesa 66k
- Apertura Escocesa: Scotch Gambit 19k
- Apertura Ponziani 13k
- Apertura Escocesa: Lolli Variation 11k
- Apertura Escocesa: Scotch Gambit, Dubois Réti Defense 9132
- Apertura Escocesa: Göring Gambit 5718
- Apertura Ponziani: Jaenisch Counterattack 5594
- Apertura Escocesa: Haxo Gambit 5563
- Apertura Escocesa: Scotch Gambit, Advance Variation 4434
- Apertura Escocesa: Benima Defense 2903
- Apertura Escocesa: Göring Gambit, Double Pawn Sacrifice 2306
- Apertura Escocesa: Scotch Gambit, London Defense 1769
- Apertura Ponziani: Neumann Gambit 1567
- Apertura Ponziani: Jaenisch Counterattack 1509
- Apertura de Peón de Rey: Tayler Opening 1265
- Apertura Escocesa: Scotch Gambit, Sarratt Variation 1114
- Apertura Escocesa: Göring Gambit, Main Line 981
- Apertura Escocesa: Lolli Variation 708
- King's Knight Opening: Konstantinopolsky 685
- Apertura Escocesa: Scotch Gambit, Göring Gambit Declined 683
- Apertura de Peón de Rey: Dresden Opening 633
- Apertura Escocesa: Scotch Gambit, Kingside Variation 543
- Apertura Ponziani: Ponziani Countergambit 433
- Apertura Ponziani: Jaenisch Counterattack 372
- Apertura Escocesa: Göring Gambit, Bardeleben Variation 326
- Apertura Escocesa: Relfsson Gambit 257
- Apertura Escocesa: Scotch Gambit, Cochrane-Anderssen Variation 180
- Apertura Ponziani: Romanishin Variation 175
- Irish Gambit 162
- Apertura Ponziani: Spanish Variation 144
- Apertura de Peón de Rey: Schulze-Müller Gambit 144
- Apertura Escocesa: Vitzthum Attack 106
- Apertura Ponziani: Caro Gambit 94
- Apertura Ponziani: Steinitz Variation 88
- Gambito Letón: Clam Gambit 86
- Apertura Escocesa 37k
- Apertura Escocesa: Classical Variation 11k
- Apertura Escocesa: Schmidt Variation 5937
- Apertura Escocesa: Potter Variation 1629
- Apertura Escocesa: Classical Variation, Intermezzo Variation 1495
- Apertura Escocesa: Mieses Variation 1060
- Apertura Escocesa: Steinitz Variation 919
- Apertura Escocesa: Malaniuk Variation 474
- Apertura Escocesa: Steinitz Variation 472
- Apertura Escocesa: Modern Defense 420
- Apertura Escocesa: Blumenfeld Attack 257
- Apertura Escocesa: Paulsen Attack 170
- Apertura Escocesa: Ghulam-Kassim Variation 149
- Apertura de los Tres Caballos 32k
- Apertura de los Tres Caballos 1913
- Apertura de los Tres Caballos: Winawer Defense 812
- Apertura de los Tres Caballos: Steinitz Defense 245
- Apertura de los Cuatro Caballos 27k
- Apertura de los Cuatro Caballos: Italian Variation 15k
- Apertura de los Cuatro Caballos: Scotch Variation 7834
- Apertura de los Cuatro Caballos: Scotch Variation Accepted 6512
- Apertura de los Cuatro Caballos: Italian Variation, Noa Gambit 1532
- Apertura de los Cuatro Caballos: Gunsberg Variation 1202
- Apertura de los Cuatro Caballos: Halloween Gambit 957
- Apertura de los Cuatro Caballos: Scotch Variation Accepted, Main Line 411
- Apertura de los Cuatro Caballos: Glek System 377
- Apertura de los Cuatro Caballos: Scotch Variation, Belgrade Gambit 295
- Apertura de los Cuatro Caballos: Scotch Variation, Schmid Defense 168
- Apertura de los Cuatro Caballos: Spanish Variation 7524
- Apertura de los Cuatro Caballos: Spanish Variation, Classical Variation 2062
- Apertura de los Cuatro Caballos: Spanish Variation, Rubinstein Variation 1091
- Apertura de los Cuatro Caballos: Spanish Variation, Ranken Variation 407
- Apertura de los Cuatro Caballos: Spanish Variation, Rubinstein Variation Accepted 240
- Apertura de los Cuatro Caballos: Spanish Variation, Rubinstein Variation, Henneberger Variation 112
- Apertura de los Cuatro Caballos: Spanish Variation, Double Spanish 1156
- Apertura de los Cuatro Caballos: Spanish Variation, Double Spanish 121
- Apertura Italiana 142k
- Apertura Italiana: Giuoco Piano 53k
- Apertura Italiana: Giuoco Pianissimo, Normal 15k
- Apertura Italiana: Anti-Fried Liver Defense 13k
- Apertura Italiana: Paris Defense 11k
- Apertura de los Cuatro Caballos: Italian Variation 10k
- Apertura Italiana: Giuoco Pianissimo 9670
- Apertura Italiana: Hungarian Defense 7753
- Apertura Italiana: Giuoco Pianissimo, Italian Four Knights Variation 7365
- Apertura Italiana: Rousseau Gambit 6323
- Apertura Italiana: Blackburne-Kostić Gambit 4118
- Apertura Italiana: Classical Variation, Albin Gambit 2692
- Apertura Italiana: Rosentreter Gambit 2204
- Apertura Italiana: Deutz Gambit 1597
- Apertura Italiana: Giuoco Pianissimo 1315
- Apertura Italiana: Giuoco Pianissimo, Canal Variation 1035
- Apertura Italiana: Giuoco Pianissimo 1009
- Apertura Italiana: Giuoco Pianissimo, Lucchini Gambit 728
- Apertura Italiana: Giuoco Pianissimo 517
- Apertura Italiana: Jerome Gambit 275
- Apertura Italiana: Hungarian Defense, Tartakower Variation 87
- Apertura Italiana: Evans Gambit 4700
- Apertura Italiana: Evans Gambit Accepted 3763
- Apertura Italiana: Evans Gambit, McDonnell Defense 1177
- Apertura Italiana: Evans Gambit, Anderssen Variation 883
- Apertura Italiana: Evans Gambit Declined 554
- Apertura Italiana: Evans Gambit, Stone-Ware Variation 218
- Apertura Italiana: Evans Gambit Declined 153
- Apertura Italiana: Evans Gambit, Anderssen Variation, Cordel Line 146
- Apertura Italiana: Evans Gambit, Harding Variation 104
- Apertura Italiana: Evans Gambit, McDonnell Defense, Main Line 89
- Apertura Italiana: Evans Gambit, Main Line 1554
- Apertura Italiana: Evans Gambit, Pierce Defense 862
- Apertura Italiana: Evans Gambit, Bronstein Defense 205
- Apertura Italiana: Evans Gambit, Slow Variation 187
- Apertura Italiana: Evans Gambit, Compromised Defense 152
- Apertura Italiana: Evans Gambit, Anderssen Defense 149
- Apertura Italiana: Evans Gambit, Mieses Defense 105
- Apertura Italiana: Evans Gambit, Tartakower Attack 100
- Apertura Italiana: Evans Gambit 81
- Apertura Italiana: Classical Variation 18k
- Apertura Italiana: Classical Variation, La Bourdonnais Variation 1803
- Apertura Italiana: Bird's Attack 229
- Apertura Italiana: Classical Variation, Closed Variation 205
- Apertura Italiana: Classical Variation, Center Holding Variation 83
- Apertura Italiana: Classical Variation 10k
- Apertura Italiana: Classical Variation, Giuoco Pianissimo 7657
- Apertura Italiana: Classical Variation, Center Attack 5325
- Apertura Italiana: Classical Variation, Greco Gambit, Traditional Line 3375
- Apertura Italiana: Classical Variation, Giuoco Pianissimo 3155
- Apertura Italiana: Classical Variation, Giuoco Pianissimo 1878
- Apertura Italiana: Giuoco Piano, Greco's Attack 1868
- Apertura Italiana: Classical Variation, Greco Gambit, Modern Line 1665
- Apertura Italiana: Classical Variation, Giuoco Pianissimo 1653
- Apertura Italiana: Classical Variation, Greco Gambit, Modern Line 894
- Apertura Italiana: Classical Variation, Giuoco Pianissimo, with h6 820
- Apertura Italiana: Classical Variation, Greco Gambit, Main Line 669
- Apertura Italiana: Classical Variation, Giuoco Pianissimo 643
- Apertura Italiana: Classical Variation, Giuoco Pianissimo, with a6 432
- Apertura Italiana: Classical Variation, Greco Gambit, Moeller-Therkatz Attack 339
- Apertura Italiana: Classical Variation, Greco Gambit, Greco Variation 325
- Apertura Italiana: Classical Variation, Greco Gambit, Anderssen Variation 311
- Apertura Italiana: Classical Variation, Giuoco Pianissimo, Albin Variation 299
- Apertura Italiana: Classical Variation, with d5 271
- Apertura Italiana: Classical Variation, Giuoco Pianissimo 241
- Apertura Italiana: Classical Variation, Giuoco Pianissimo 241
- Apertura Italiana: Classical Variation, Greco Gambit, Dubov Italian 234
- Apertura Italiana: Classical Variation, Giuoco Pianissimo 164
- Apertura Italiana: Giuoco Piano, Aitken Variation 99
- Apertura Italiana: Classical Variation, Giuoco Pianissimo 86
- Apertura Italiana: Two Knights Defense 51k
- Apertura Italiana: Two Knights Defense, Modern Bishop's Opening 20k
- Apertura Italiana: Two Knights Defense, Modern Bishop's Opening 4502
- Apertura Italiana: Two Knights Defense 1756
- Apertura Italiana: Two Knights Defense, Modern Bishop's Opening 261
- Apertura Italiana: Two Knights Defense, Open Variation 4855
- Apertura Italiana: Scotch Gambit 2858
- Apertura Italiana: Scotch Gambit, Max Lange Attack 1688
- Apertura Italiana: Scotch Gambit, Max Lange Attack 1675
- Apertura Italiana: Two Knights Defense, Max Lange Attack 1306
- Apertura Italiana: Scotch Gambit, Double Gambit Accepted 1238
- Apertura Italiana: Two Knights Defense, Perreux Variation 860
- Apertura Italiana: Scotch Gambit, Anderssen Attack 757
- Apertura Italiana: Scotch Gambit, Janowski Defense 647
- Apertura Italiana: Scotch Gambit, de Riviere Defense 536
- Apertura Italiana: Scotch Invitation Declined 431
- Apertura Italiana: Scotch Gambit, Max Lange Attack, Spielmann Defense 387
- Apertura Italiana: Scotch Gambit, Walbrodt-Baird Gambit 313
- Apertura Italiana: Scotch Gambit, Nakhmanson Gambit 151
- Apertura Italiana: Two Knights Defense, Knight Attack 13k
- Apertura Italiana: Two Knights Defense, Knight Attack, Normal Variation 10k
- Apertura Italiana: Two Knights Defense, Traxler Counterattack 1408
- Apertura Italiana: Two Knights Defense, Fritz Variation 1382
- Apertura Italiana: Two Knights Defense, Ulvestad Variation 1195
- Apertura Italiana: Two Knights Defense, Fried Liver Attack 1126
- Apertura Italiana: Two Knights Defense, Ponziani-Steinitz Gambit 729
- Apertura Italiana: Two Knights Defense, Traxler Counterattack, Bishop Sacrifice Line 711
- Apertura Italiana: Two Knights Defense, Traxler Counterattack, Knight Sacrifice Line 511
- Apertura Italiana: Two Knights Defense, Polerio Defense 5962
- Apertura Italiana: Two Knights Defense, Polerio Defense, Bishop Check Line 5249
- Apertura Italiana: Two Knights Defense, Polerio Defense, Bogoljubow Variation 1060
- Apertura Italiana: Two Knights Defense 728
- Apertura Italiana: Two Knights Defense, Polerio Defense, Kieseritzky Variation 289
- Apertura Italiana: Two Knights Defense, Blackburne Variation 144
- Apertura Italiana: Two Knights Defense, Colman Variation 90
- Apertura Italiana: Two Knights Defense, Polerio Defense, Suhle Defense 470
- Apertura Española 81k
- Apertura Española: Cozio Defense 4072
- Apertura Española: Fianchetto Defense 358
- Apertura Española: Nürnberg Variation 353
- Apertura Española: Vinogradov Variation 226
- Apertura Española: Lucena Variation 199
- Apertura Española: Spanish Countergambit 122
- Apertura Española: Alapin Defense 88
- Apertura Española: Cozio Defense, Paulsen Variation 88
- Apertura Española: Bird Variation 3434
- Apertura Española: Steinitz Defense 17k
- Apertura Española: Steinitz Defense 5512
- Apertura Española: Schliemann Defense 3004
- Apertura Española: Schliemann Defense, Exchange Variation 658
- Apertura Española: Schliemann Defense, Jaenisch Gambit Accepted 504
- Apertura Española: Schliemann Defense, Dyckhoff Variation 420
- Apertura Española: Schliemann Defense, Schönemann Attack 218
- Apertura Española: Schliemann Defense, Tartakower Variation 104
- Apertura Española: Classical Variation 11k
- Apertura Española: Classical Variation, Central Variation 3388
- Apertura Española: Berlin Defense 14k
- Apertura Española: Berlin Defense 6538
- Apertura Española: Berlin Defense, Anti-Berlin Variation 3802
- Apertura Española: Berlin Defense, Beverwijk Variation 2531
- Apertura Española: Classical Variation, Zukertort Gambit 1270
- Apertura Española: Berlin Defense, Anti-Berlin Variation, Mortimer Variation 100
- Apertura Española: Berlin Defense, Improved Steinitz Defense 2302
- Apertura Española: Berlin Defense, Rio Gambit Accepted 2531
- Apertura Española: Berlin Defense, l'Hermet Variation 740
- Apertura Española: Berlin Defense, l'Hermet Variation, Berlin Wall Defense 492
- Apertura Española: Berlin Defense, Berlin Wall 99
- Apertura Española: Open Berlin Defense, l'Hermet Variation 86
- Apertura Española: Exchange Variation 6463
- Apertura Española: Exchange Variation, Keres Variation 524
- Apertura Española: Exchange Variation, Lutikov Variation 359
- Apertura Española: Exchange, Alekhine Variation 121
- Apertura Española: Exchange Variation, Normal Variation 2558
- Apertura Española: Exchange Variation, King's Bishop Variation 800
- Apertura Española: Exchange Variation, Gligoric Variation 493
- Apertura Española: Exchange Variation, Alapin Gambit 279
- Apertura Española: Exchange Variation, Bronstein Variation 82
- Apertura Española: Morphy Defense 25k
- Apertura Española: Morphy Defense, Caro Variation 3071
- Apertura Española: Morphy Defense, Classical Defense Deferred 1059
- Apertura Española: Morphy Defense, Graz Variation 791
- Apertura Española: Morphy Defense, Schliemann Defense Deferred 185
- Apertura Española: Morphy Defense, Norwegian Variation 166
- Apertura Española: Morphy Defense, Cozio Defense 137
- Apertura Española: Morphy Defense, Modern Steinitz Defense 1822
- Apertura Española: Morphy Defense, Modern Steinitz Defense 870
- Apertura Española: Morphy Defense, Modern Steinitz Defense 705
- Apertura Española: Morphy Defense, Modern Steinitz Defense 157
- Apertura Española: Morphy Defense, Anderssen Variation 2967
- Apertura Española: Morphy Defense, Tarrasch Variation 616
- Apertura Española: Morphy Defense, Wormald Attack 305
- Apertura Española: Morphy Defense, Mackenzie Variation 302
- Apertura Española: Morphy Defense, Jaffe Gambit 126
- Apertura Española: Morphy Defense, Bayreuth Variation 120
- Apertura Española: Morphy Defense 8101
- Apertura Española: Morphy Defense, Neo-Arkhangelsk Variation 1300
- Apertura Española: Morphy Defense, Møller Variation 695
- Apertura Española: Morphy Defense 245
- Apertura Española: Morphy Defense, Arkhangelsk Variation 177
- Apertura Española: Morphy Defense, Steinitz Deferred 723
- Apertura Española: Open 791
- Apertura Española: Open 461
- Apertura Española: Open 380
- Apertura Española: Open 312
- Apertura Española: Open, Main Line 309
- Apertura Española: Open, Bernstein Variation 98
- Apertura Española: Open 146
- Apertura Española: Closed 3408
- Apertura Española: Closed, Martinez Variation 357
- Apertura Española: Closed, Center Attack 84
- Apertura Española: Closed, Delayed Exchange 135
- Apertura Española: Closed, Averbakh Variation 218
- Apertura Española: Closed 3404
- Apertura Española: Closed 2181
- Apertura Española: Closed, Anti-Marshall 334
- Apertura Española: Marshall Attack 918
- Apertura Española: Marshall Attack, Modern Variation 471
- Apertura Española: Marshall Attack, Main Line 302
- Apertura Española: Closed 957
- Apertura Española: Closed, Yates Variation 199
- Apertura Española: Closed, Bogoljubow Variation 91
- Apertura Española: Closed 836
- Apertura Española: Closed, Flohr System 83
- Apertura Española: Closed, Breyer Defense 125
- Apertura Española: Closed, Breyer 111
- Apertura Española: Closed, Breyer Defense, Zaitsev Hybrid 82
- Apertura Española: Closed, Chigorin Defense 387
- Apertura Española: Closed, Chigorin Defense 375
- Apertura Española: Closed, Chigorin Defense 393
- Apertura Española: Closed, Chigorin Defense 136
ECO D
- Apertura de Peón de Dama 432k
- Apertura de Peón de Dama: Accelerated London System 75k
- Apertura de Peón de Dama 35k
- Apertura de Peón de Dama: Chigorin Variation 31k
- Gambito Blackmar-Diemer 18k
- Apertura de Peón de Dama 15k
- Apertura de Peón de Dama: Chigorin Variation 9455
- Apertura de Peón de Dama: Levitsky Attack 9104
- Gambito Blackmar-Diemer 8275
- Apertura de Peón de Dama: Accelerated London System, Steinitz Countergambit 6140
- Apertura de Peón de Dama: Mason Attack 5272
- Gambito Blackmar-Diemer Aceptado 5212
- Apertura de Peón de Dama: Stonewall Attack 4720
- Apertura de Peón de Dama: Hübsch Gambit 3321
- Apertura de Peón de Dama: Chigorin Variation, Alburt Defense 2724
- Gambito Blackmar-Diemer: Blackmar Gambit 2452
- Gambito Blackmar-Diemer Aceptado: Teichmann Defense 1645
- Gambito Blackmar-Diemer: von Popiel Gambit 1603
- Gambito Blackmar-Diemer Aceptado: Euwe Defense 1319
- Gambito Blackmar-Diemer Aceptado: Ryder Gambit 1261
- Gambito Blackmar-Diemer: Zeller Defense 1147
- Apertura de Peón de Dama: Chigorin Variation, Irish Gambit 1129
- Gambito Blackmar-Diemer: Netherlands Variation 1037
- Gambito Blackmar-Diemer Aceptado: Euwe Defense, Duthilleul Gambit 794
- Blackmar-Diemer Gambit Declined: Vienna Defense 764
- Gambito Blackmar-Diemer Aceptado: Ziegler Defense 737
- Gambito Blackmar-Diemer: Lemberger Countergambit 563
- Blackmar-Diemer Gambit Declined: O'Kelly Defense 563
- Apertura de Peón de Dama: Accelerated London System, Steinitz Countergambit Accepted 359
- Blackmar-Diemer Gambit Declined: Weinsbach Defense 349
- Gambito Blackmar-Diemer Aceptado: Bogoljubow Defense 290
- Gambito Blackmar-Diemer: Fritz Attack 263
- Blackmar-Diemer Gambit Declined: Langeheinicke Defense 253
- Amazon Attack 250
- Apertura de Peón de Dama: Chigorin Variation, Shaviliuk Gambit 230
- Gambito Blackmar-Diemer: Reversed Albin Countergambit 229
- Gambito Blackmar-Diemer: Diemer-Rosenberg Attack 196
- Gambito Blackmar-Diemer Aceptado: Gunderam Defense 193
- Apertura de Peón de Dama: Chigorin Variation, Anti-Veresov 185
- Gambito Blackmar-Diemer Aceptado: Pietrowsky Defense 173
- Gambito Blackmar-Diemer Aceptado: Teichmann Defense, Classical Variation 151
- Blackmar-Diemer Gambit Declined: Weinsbach Defense, Pfrang Gambit 150
- Blackmar-Diemer Gambit Declined: Brombacher Countergambit 106
- Gambito Blackmar-Diemer: Lemberger Countergambit, Endgame Variation 103
- Blackmar-Diemer Gambit Declined: Elbert Countergambit 90
- Rapport-Jobava System 16k
- Rapport-Jobava System, with e6 6843
- Rapport-Jobava System 6705
- Richter-Veresov Attack 3600
- Rapport-Jobava System 1633
- Richter-Veresov Attack 440
- Richter-Veresov Attack: Richter Variation 259
- Richter-Veresov Attack: Boyce Defense 221
- Richter-Veresov Attack: Veresov Variation 126
- Richter-Veresov Attack: Two Knights System 107
- Apertura de Peón de Dama: Zukertort Variation 98k
- Apertura de Peón de Dama: Symmetrical Variation 51k
- Apertura de Peón de Dama: London System 20k
- Apertura de Peón de Dama: Chigorin Variation 17k
- Apertura de Peón de Dama: London System, with e6 13k
- Apertura de Peón de Dama: London System, with e6 12k
- Apertura de Peón de Dama: Krause Variation 6379
- Apertura de Peón de Dama: Symmetrical Variation, Pseudo-Catalan 5444
- Apertura de Peón de Dama: Anti-Torre 4324
- Apertura de Peón de Dama: London System 3828
- Gambito de Dama Rehusado: Baltic Defense, Pseudo-Slav 1830
- Apertura de Peón de Dama: London System 808
- Apertura de Peón de Dama: Symmetrical Variation, Pseudo-Catalan 419
- Apertura de Peón de Dama: London System 395
- Apertura de Peón de Dama: Torre Attack 4778
- Apertura de Peón de Dama: Torre Attack, Gossip Variation 735
- Apertura de Peón de Dama: Torre Attack, Grünfeld Variation 132
- Apertura de Peón de Dama: Colle System 16k
- Apertura de Peón de Dama: Colle System, Anti-Colle 3449
- Apertura de Peón de Dama: Colle System, Grünfeld Formation 458
- Apertura de Peón de Dama: Colle System 10k
- Apertura de Peón de Dama: Colle System 5816
- Apertura de Peón de Dama: Colle System, Traditional Colle 948
- Rubinstein Opening 821
- Apertura de Peón de Dama: Colle System 261
- Apertura de Peón de Dama: Colle System 205
- Queen's Gambit 177k
- Gambito de Dama Rehusado: Marshall Defense 29k
- Gambito de Dama Rehusado: Baltic Defense 6205
- Gambito de Dama Rehusado: Austrian Defense 3424
- Gambito de Dama Rehusado: Austrian Attack, Salvio Countergambit 399
- Gambito de Dama Rehusado: Marshall Defense, Tan Gambit 260
- Gambito de Dama Rehusado: Baltic Defense, Queen Attack 197
- Gambito de Dama Rehusado: Baltic Defense, Queen Attack Deferred 190
- Gambito de Dama Rehusado: Austrian Defense, Gusev Countergambit 104
- Gambito de Dama Rehusado: Baltic Defense, Pseudo-Chigorin 87
- Gambito de Dama Rehusado: Chigorin Defense 5122
- Gambito de Dama Rehusado: Chigorin Defense 2132
- Gambito de Dama Rehusado: Chigorin Defense 1757
- Gambito de Dama Rehusado: Chigorin Defense, Exchange Variation 1149
- Gambito de Dama Rehusado: Chigorin Defense, Main Line 971
- Gambito de Dama Rehusado: Chigorin Defense, Janowski Variation 859
- Gambito de Dama Rehusado: Chigorin Defense, Modern Gambit 161
- Gambito de Dama Rehusado: Chigorin Defense, Tartakower Gambit 151
- Gambito de Dama Rehusado: Chigorin Defense, Lazard Gambit 86
- Gambito de Dama Rehusado: Albin Countergambit 7507
- Gambito de Dama Rehusado: Albin Countergambit, Normal Line 2790
- Gambito de Dama Rehusado: Albin Countergambit, Tartakower Defense 331
- Gambito de Dama Rehusado: Albin Countergambit, Modern Line 301
- Gambito de Dama Rehusado: Albin Countergambit, Lasker Trap 229
- Gambito de Dama Rehusado: Albin Countergambit, Spassky Variation 138
- Gambito de Dama Rehusado: Albin Countergambit, Fianchetto Variation 482
- Gambito de Dama Rehusado: Albin Countergambit, Fianchetto Variation, Bg4 Line 165
- Gambito de Dama Rehusado: Albin Countergambit, Fianchetto Variation, Be6 Line 92
- Defensa Eslava 58k
- Defensa Eslava 32k
- Defensa Eslava: Exchange Variation 8142
- Defensa Eslava 3217
- Defensa Eslava: Slav Gambit, Alekhine Attack 1049
- Defensa Eslava: Diemer Gambit 635
- Defensa Eslava: Winawer Countergambit 242
- Defensa Eslava: Exchange Variation, Boor Attack 183
- Defensa Eslava: Modern Line 17k
- Defensa Eslava: Quiet Variation 3491
- Defensa Eslava: Quiet Variation, Pin Defense 965
- Defensa Eslava: Bonet Gambit 326
- Defensa Eslava: Breyer Variation 120
- Defensa Eslava: Quiet Variation, Schallopp Defense 1067
- Defensa Eslava: Quiet Variation, Schallopp Defense 795
- Defensa Eslava: Exchange Variation 1668
- Defensa Eslava: Exchange Variation, Symmetrical Line 149
- Defensa Eslava: Three Knights Variation 18k
- Defensa Eslava: Two Knights Attack 2314
- Defensa Eslava: Schlechter Variation 1158
- Defensa Eslava: Chebanenko Variation 902
- Defensa Eslava: Geller Gambit 462
- Defensa Eslava: Geller Gambit 131
- Defensa Eslava: Alekhine Variation 124
- Defensa Eslava: Alapin Variation 1169
- Defensa Eslava: Czech Variation 754
- Defensa Eslava: Czech Variation, Krause Attack 157
- Defensa Eslava: Czech Variation, Classical System 391
- Defensa Eslava: Czech Variation, Dutch Variation 233
- Gambito de Dama Aceptado 30k
- Gambito de Dama Aceptado: Old Variation 7194
- Gambito de Dama Aceptado: Saduleto Variation 6878
- Gambito de Dama Aceptado: Central Variation, McDonnell Defense 1693
- Gambito de Dama Aceptado: Central Variation, Greco Variation 1148
- Gambito de Dama Aceptado: Central Variation, Alekhine System 889
- Gambito de Dama Aceptado: Central Variation, Modern Defense 717
- Gambito de Dama Aceptado: Accelerated Mannheim Variation 390
- Gambito de Dama Aceptado: Central Variation, Rubinstein Defense 281
- Gambito de Dama Aceptado: Central Variation, McDonnell Defense, Somov Gambit 100
- Gambito de Dama Aceptado: Normal Variation 3939
- Gambito de Dama Aceptado: Rosenthal Variation 1704
- Gambito de Dama Aceptado: Gunsberg Defense 516
- Gambito de Dama Aceptado: Slav Gambit 233
- Gambito de Dama Aceptado: Alekhine Defense 243
- Gambito de Dama Aceptado 3029
- Gambito de Dama Aceptado: Showalter Variation 1682
- Gambito de Dama Aceptado 436
- Gambito de Dama Aceptado 242
- Gambito de Dama Aceptado: Normal Variation 1416
- Gambito de Dama Aceptado: Janowski-Larsen Variation 255
- Gambito de Dama Aceptado: Normal Variation, Traditional System 814
- Gambito de Dama Aceptado: Classical Defense 370
- Gambito de Dama Aceptado: Classical Defense, Normal Line 281
- Gambito de Dama Aceptado: Normal Variation, Traditional System 142
- Gambito de Dama Aceptado: Classical Defense, Main Line 210
- Gambito de Dama Rehusado 75k
- Gambito de Dama Rehusado: Traditional Variation 2498
- Gambito de Dama Rehusado: Tarrasch Defense, Pseudo-Tarrasch 1881
- Gambito de Dama Rehusado: Vienna Variation 92
- Gambito de Dama Rehusado: Queen's Knight Variation 47k
- Defensa Semieslava: Accelerated Move Order 13k
- Defensa Semieslava: Marshall Gambit 1555
- Gambito de Dama Rehusado: Janowski Variation 1124
- Defensa Semieslava: Noteboom Variation 935
- Gambito de Dama Rehusado: Charousek Variation 880
- Defensa Semieslava: Anti-Noteboom, Stonewall Variation 274
- Gambito de Dama Rehusado: Alapin Variation 161
- Defensa Semieslava: Marshall Gambit, Main Line 88
- Defensa Tarrasch 2829
- Gambito de Dama Rehusado: Tarrasch Defense 994
- Defensa Tarrasch: Two Knights Variation 714
- Defensa Tarrasch: Symmetrical Variation 462
- Defensa Tarrasch: Schara Gambit 354
- Defensa Tarrasch: Prague Variation 137
- Defensa Tarrasch: Rubinstein System 122
- Gambito de Dama Rehusado: Normal Defense 44k
- Gambito de Dama Rehusado: Exchange Variation 9532
- Gambito de Dama Rehusado: Exchange Variation, Positional Variation 6830
- Gambito de Dama Rehusado: Harrwitz Attack 2460
- Gambito de Dama Rehusado: Exchange Variation, Positional Variation 2294
- Gambito de Dama Rehusado: Exchange Variation, Reshevsky Variation 338
- Gambito de Dama Rehusado: Exchange Variation, Reshevsky Variation 298
- Gambito de Dama Rehusado: Three Knights Variation 24k
- Gambito de Dama Rehusado: Harrwitz Attack 2293
- Gambito de Dama Rehusado: Three Knights, Vienna Variation 1572
- Gambito de Dama Rehusado: Three Knights Variation 1224
- Gambito de Dama Rehusado: Barmen Variation 856
- Gambito de Dama Rehusado: Harrwitz Attack, Fianchetto Defense 187
- Gambito de Dama Rehusado: Harrwitz Attack, Two Knights Defense 129
- Gambito de Dama Rehusado: Vienna Variation, Quiet Variation 99
- Gambito de Dama Rehusado: Ragozin Defense 5791
- Gambito de Dama Rehusado: Ragozin Defense, Alekhine Variation 393
- Gambito de Dama Rehusado: Semi-Tarrasch Defense 2587
- Gambito de Dama Rehusado: Semi-Tarrasch Defense, Pillsbury Variation 557
- Gambito de Dama Rehusado: Semi-Tarrasch Defense 791
- Gambito de Dama Rehusado: Semi-Tarrasch Defense, Exchange Variation 366
- Gambito de Dama Rehusado: Semi-Tarrasch Defense, Exchange Variation 150
- Defensa Semieslava 12k
- Defensa Semieslava: Anti-Moscow Gambit 204
- Semi-Slav Defense Accepted 272
- Defensa Semieslava: Botvinnik Variation 167
- Defensa Semieslava: Botvinnik Variation 81
- Defensa Semieslava: Main Line 3362
- Defensa Semieslava: Normal Variation 817
- Defensa Semieslava: Stoltz Variation 124
- Defensa Semieslava: Main Line 271
- Defensa Semieslava: Semi-Meran Variation 196
- Defensa Semieslava: Meran Variation 147
- Gambito de Dama Rehusado: Modern Variation 14k
- Gambito de Dama Rehusado: Been-Koomen Variation 287
- Gambito de Dama Rehusado: Pseudo-Tarrasch Variation 86
- Gambito de Dama Rehusado: Modern Variation, Knight Defense 958
- Gambito de Dama Rehusado: Modern Variation, Knight Defense 543
- Gambito de Dama Rehusado: Modern Variation, Knight Defense 475
- Gambito de Dama Rehusado 1302
- Gambito de Dama Rehusado: Cambridge Springs Defense 373
- Gambito de Dama Rehusado: Cambridge Springs Defense, Capablanca Variation 95
- Gambito de Dama Rehusado 8807
- Gambito de Dama Rehusado 5618
- Gambito de Dama Rehusado: Modern Variation, Heral Variation 469
- Gambito de Dama Rehusado 152
- Gambito de Dama Rehusado: Modern Variation, Normal Line 4015
- Gambito de Dama Rehusado: Neo-Orthodox Variation 1028
- Gambito de Dama Rehusado: Neo-Orthodox Variation, Main Line 968
- Gambito de Dama Rehusado: Tartakower Defense 231
- Gambito de Dama Rehusado: Orthodox Defense 593
- Gambito de Dama Rehusado: Orthodox Defense, Botvinnik Variation 168
- Defensa Neo-Grünfeld: with Nf3 960
- Defensa Neo-Grünfeld: Goglidze Attack 97
- Defensa Neo-Grünfeld: with g3 86
- Defensa Neo-Grünfeld: with g3 124
- Defensa Neo-Grünfeld: Classical Variation 777
- Defensa Neo-Grünfeld: Classical Variation, Modern Defense 116
- Defensa Neo-Grünfeld: Classical Variation, Original Defense 531
- Defensa Grünfeld 8805
- Defensa Grünfeld: Stockholm Variation 823
- Defensa Grünfeld: Brinckmann Attack 464
- Defensa Grünfeld: Brinckmann Attack, Grünfeld Gambit 171
- Defensa Grünfeld: Exchange Variation 3953
- Defensa Grünfeld: Exchange Variation, Modern Exchange Variation 1366
- Defensa Grünfeld: Exchange Variation, Modern Exchange Variation 1036
- Defensa Grünfeld: Exchange Variation, Modern Exchange Variation 111
- Defensa Grünfeld: Exchange Variation, Classical Variation 816
- Defensa Grünfeld: Exchange Variation, Spassky Variation 400
- Defensa Grünfeld: Three Knights Variation 3441
- Defensa Grünfeld: Three Knights Variation 2436
- Defensa Grünfeld: Three Knights Variation, Petrosian System 677
- Defensa Grünfeld: Three Knights Variation, Hungarian Attack 462
- Defensa Grünfeld: Three Knights Variation, Hungarian Variation 313
- Defensa Grünfeld: Three Knights Variation, Burille Variation 989
- Defensa Grünfeld: Three Knights Variation, Paris Variation 112
- Defensa Grünfeld: Russian Variation 232
- Defensa Grünfeld: Russian Variation 105
ECO E
- Apertura Catalana 2623
- Apertura Catalana 2282
- Defensa India: Seirawan Attack 883
- Apertura Catalana: Open Defense 1851
- Apertura Catalana: Tarrasch Defense 152
- Apertura Catalana: Open Defense 220
- Apertura Catalana: Open Defense 691
- Apertura Catalana: Open Defense 126
- Apertura Catalana: Open Defense, Classical Line 670
- Apertura Catalana: Closed 2839
- Apertura Catalana: Closed 542
- Apertura Catalana: Closed 92
- Defensa India: Anti-Nimzo-Indian 16k
- Blumenfeld Countergambit 143
- Defensa Bogo-India 3105
- Defensa Bogo-India: Grünfeld Variation 627
- Defensa Bogo-India: Nimzowitsch Variation 548
- Defensa Bogo-India: Exchange Variation 518
- Defensa Bogo-India: Retreat Variation 362
- Defensa Bogo-India: Wade-Smyslov Variation 245
- Defensa Bogo-India: Retreat Variation 221
- Defensa Bogo-India: Retreat Variation 189
- Defensa Bogo-India: Retreat Variation 175
- Defensa Bogo-India: Vitolins Variation 149
- Defensa India de Dama 3565
- Defensa India de Dama: Kasparov Variation 1189
- Defensa India de Dama: Petrosian Variation 508
- Defensa India de Dama: Kasparov-Petrosian Variation 373
- Defensa India de Dama: Kasparov-Petrosian Variation, Main Line 125
- Defensa India de Dama: Kasparov-Petrosian Variation, Marco Defense 85
- Defensa India de Dama: Spassky System 304
- Defensa India de Dama: Spassky System 286
- Defensa India de Dama: Fianchetto Variation 1612
- Defensa India de Dama: Fianchetto Variation, Traditional Line 1190
- Defensa India de Dama: Fianchetto Variation, Nimzowitsch Variation 403
- Defensa India de Dama: Fianchetto Variation, Nimzowitsch Variation, Quiet Line 168
- Defensa India de Dama: Fianchetto Variation, Check Variation 113
- Defensa India de Dama: Fianchetto Variation, Check Variation, Intermezzo Line 99
- Defensa India de Dama: Fianchetto Variation, Sämisch Variation 87
- Defensa India de Dama: Capablanca Variation 290
- Defensa India de Dama: Classical Variation 683
- Defensa India de Dama: Traditional Variation 473
- Defensa India de Dama: Classical Variation, Traditional Variation 314
- Defensa Nimzo-India 18k
- Defensa Nimzo-India: Kmoch Variation 893
- Defensa Nimzo-India: Dilworth Gambit 149
- Defensa Nimzo-India: Romanishin Variation 147
- Defensa Nimzo-India: Three Knights Variation 2960
- Defensa Nimzo-India: Spielmann Variation 607
- Defensa Nimzo-India: Sämisch Variation 1558
- Defensa Nimzo-India: Sämisch Variation 155
- Defensa Nimzo-India: Sämisch Variation 320
- Defensa Nimzo-India: Leningrad Variation 2227
- Defensa Nimzo-India: Classical Variation 3799
- Defensa Nimzo-India: Classical Variation, Zurich Variation 146
- Defensa Nimzo-India: Classical Variation, Noa Variation 782
- Defensa Nimzo-India: Classical Variation, Noa Variation 212
- Defensa Nimzo-India: Classical Variation, Noa Variation 122
- Defensa Nimzo-India: Classical Variation, Berlin Variation 792
- Defensa Nimzo-India: Rubinstein System 2843
- Defensa Nimzo-India: Rubinstein System 435
- Defensa Nimzo-India: Rubinstein System, Rubinstein Variation 138
- Defensa Nimzo-India: St. Petersburg Variation 487
- Defensa Nimzo-India: St. Petersburg Variation 101
- Defensa Nimzo-India: St. Petersburg Variation 170
- Defensa Nimzo-India: Normal Variation 1127
- Defensa Nimzo-India: Reshevsky Variation 236
- Defensa Nimzo-India: Normal Variation 556
- Defensa Nimzo-India: Normal Variation, Classical Defense 307
- Defensa Nimzo-India 225
- Defensa Nimzo-India: Normal Variation, Ragozin Variation 316
- Defensa India: West Indian Defense 39k
- Defensa India de Rey: Normal Variation, King's Knight Variation 9888
- Defensa India de Rey: Fianchetto Variation 2062
- Defensa India de Rey: Fianchetto Variation, Immediate Fianchetto 1175
- Defensa India: Anti-Grünfeld, Alekhine Variation 540
- Defensa India: Anti-Grünfeld, Basman-Williams Attack 157
- Defensa India: Anti-Grünfeld, Advance Variation 134
- Defensa India de Rey 32k
- Defensa India de Rey: Smyslov Variation 1596
- Defensa India de Rey: Semi-Classical Variation 244
- Defensa India de Rey: Fianchetto Variation, Delayed Fianchetto 640
- Defensa India de Rey: Fianchetto Variation, Carlsbad Variation 225
- Defensa India de Rey: Fianchetto Variation, Uhlmann-Szabo System 90
- Defensa India de Rey: Fianchetto Variation, Yugoslav System 142
- Defensa India de Rey: Fianchetto Variation, Debrecen Defense 257
- Defensa India de Rey: Fianchetto Variation, Classical Fianchetto 249
- Defensa India de Rey: Normal Variation 21k
- Defensa India de Rey: Normal Variation 18k
- Defensa India de Rey: Accelerated Averbakh Variation 684
- Defensa India de Rey: Kramer Variation 192
- Defensa India de Rey: Makogonov Variation 2037
- Defensa India de Rey: Karpov System 489
- Defensa India de Rey: Normal Variation, Standard Development 2718
- Defensa India de Rey: Semi-Averbakh System 551
- Defensa India de Rey: Averbakh Variation 426
- Defensa India de Rey: Averbakh Variation, Flexible Defense 145
- Defensa India de Rey: Four Pawns Attack 3204
- Defensa India de Rey: Four Pawns Attack, Dynamic Attack 759
- Defensa India de Rey: Four Pawns Attack, Normal Attack 205
- Defensa India de Rey: Four Pawns Attack 109
- Defensa India de Rey: Sämisch Variation 3665
- Defensa India de Rey: Sämisch Variation, Normal Defense 3337
- Defensa India de Rey: Sämisch Variation, Sämisch Gambit 310
- Defensa India de Rey: Steiner Attack 110
- Defensa India de Rey: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation 83
- Defensa India de Rey: Sämisch Variation, Yates Defense 318
- Defensa India de Rey: Sämisch Variation, Orthodox Variation 506
- Defensa India de Rey: Sämisch Variation, Closed Variation 249
- Defensa India de Rey: Normal Variation, Rare Defenses 9386
- Defensa India de Rey: Zinnowitz Variation 215
- Defensa India de Rey: Larsen Variation 95
- Defensa India de Rey: Orthodox Variation 5674
- Defensa India de Rey: Kazakh Variation 216
- Defensa India de Rey: Orthodox Variation 1983
- Defensa India de Rey: Petrosian Variation 375
- Defensa India de Rey: Exchange Variation 192
- Defensa India de Rey: Petrosian Variation, Stein Defense 140
- Defensa India de Rey: Orthodox Variation, Gligoric-Taimanov System 115
- Defensa India de Rey: Orthodox Variation 890
- Defensa India de Rey: Orthodox Variation, Positional Defense 383
- Defensa India de Rey: Orthodox Variation, Positional Defense, Closed Line 107
- Defensa India de Rey: Orthodox Variation, Aronin-Taimanov Defense 711
- Defensa India de Rey: Orthodox Variation, Bayonet Attack 120
- Defensa India de Rey: Orthodox Variation, Classical System 164