CCRL 40/40
Downloads and Statistics
April 11, 2008
Testing summary:
Total: 114'872 games
played by 449 programs
16375 CPU days (X2 4600+)

White wins: 41'478 (36.1%)
Black wins: 31'357 (27.3%)
Draws: 42'037 (36.6%)
White score: 54.4%

Opening statistics

This page shows how many games in our database were played from various known openings. The table also shows average draw percentage and white score we observed in our games.

ECOOpeningNumber
of
games
DrawsWhite
score
Commented
PGN
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc10.0%100.0%
A06Tennison (Lemberg, Zukertort) gambit10.0%100.0%
A10English, Jaenisch gambit20.0%100.0%
B03Alekhine's defence, Balogh variation10.0%100.0%
A02Bird, From gambit, Lasker variation10.0%100.0%
A61Benoni, fianchetto variation20.0%100.0%
C42Petrov, classical attack, Berger variation10.0%100.0%
C74Ruy Lopez, modern Steinitz defence, siesta variation10.0%100.0%
A74Benoni, classical, 9...a6, 10.a410.0%100.0%
B40Sicilian, Marshall variation10.0%100.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation20.0%100.0%
A46Queen's pawn, Torre attack, Wagner gambit10.0%100.0%
D32QGD, Tarrasch, von Hennig-Schara gambit20.0%100.0%
B40Sicilian, Pin variation (Sicilian counter-attack)10.0%100.0%
B34Sicilian, accelerated fianchetto, exchange variation10.0%100.0%
C12French, MacCutcheon, Dr. Olland (Dutch) variation40.0%100.0%
C41Philidor, Philidor counter-gambit, del Rio attack10.0%100.0%
D98Gruenfeld, Russian, Keres variation10.0%100.0%
E14Queen's Indian, Averbakh variation10.0%100.0%
D63QGD, Orthodox defence, Pillsbury attack10.0%100.0%
E28Nimzo-Indian, Saemisch variation30.0%100.0%
A18English, Mikenas-Carls variation10.0%100.0%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C53Giuoco Piano, close variation20.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
C44Scotch, Relfsson gambit ('MacLopez')20.0%100.0%
D97Gruenfeld, Russian variation with e410.0%100.0%
C51Evans gambit declined10.0%100.0%
A67Benoni, Taimanov variation40.0%100.0%
C30King's gambit20.0%100.0%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack10.0%100.0%
C13French, classical, Tartakower variation10.0%100.0%
C14French, classical, Alapin variation20.0%100.0%
C39KGA, Kieseritsky, Paulsen defence10.0%100.0%
A42Modern defence, Averbakh system, Kotov variation10.0%100.0%
C34KGA, Becker defence10.0%100.0%
D95Gruenfeld with e3 & Qb310.0%100.0%
A97Dutch, Ilyin-Genevsky variation10.0%100.0%
C42Petrov, classical attack, Krause variation10.0%100.0%
C57Two knights defence, Fegatello attack, Polerio defence30.0%100.0%
C33KGA, bishop's gambit, McDonnell attack10.0%100.0%
B74Sicilian, dragon, classical, Alekhine variation20.0%100.0%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C27Boden-Kieseritsky gambit10.0%100.0%
A82Dutch, Balogh defence10.0%100.0%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
D90Gruenfeld, Schlechter variation10.0%100.0%
A00Amsterdam attack10.0%100.0%
B58Sicilian, Boleslavsky, Louma variation10.0%100.0%
C33KGA, bishop's gambit, Steinitz defence10.0%100.0%
C80Ruy Lopez, open, Zukertort variation10.0%100.0%
C41Philidor, Philidor counter-gambit, Zukertort variation30.0%100.0%
D94Gruenfeld, Flohr defence10.0%100.0%
C82Ruy Lopez, open, Italian variation20.0%100.0%
C77Ruy Lopez, Morphy defence, Duras variation20.0%100.0%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation20.0%100.0%
C42Petrov, Damiano variation10.0%100.0%
C55Two knights, Max Lange attack, Steinitz variation10.0%100.0%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
A92Dutch defence10.0%100.0%
A20English, Nimzovich variation616.7%91.7%
D41QGD, Semi-Tarrasch, San Sebastian variation616.7%91.7%
C60Ruy Lopez, Cozio defence616.7%91.7%
C49Four knights, double Ruy Lopez520.0%90.0%
A12English, Bled variation520.0%90.0%
B00Reversed Grob (Borg/Basman defence/macho Grob)425.0%87.5%
B40Sicilian, Pin, Koch variation425.0%87.5%
A43Old Benoni, Mujannah formation425.0%87.5%
B27Sicilian, Quinteros variation425.0%87.5%
C13French, classical, Frankfurt variation425.0%87.5%
C06French, Tarrasch, Leningrad variation425.0%87.5%
E60Queen's pawn, Mengarini attack119.1%86.4%
C68Ruy Lopez, exchange, Romanovsky variation333.3%83.3%
C81Ruy Lopez, open, Howell attack333.3%83.3%
B15Caro-Kann, Alekhine gambit333.3%83.3%
C67Ruy Lopez, Berlin defence, Winawer attack633.3%83.3%
C45Scotch, Romanishin variation333.3%83.3%
E75King's Indian, Averbakh, main line333.3%83.3%
D12QGD Slav, Amsterdam variation333.3%83.3%
A91Dutch defence333.3%83.3%
C30KGD, Keene's defence333.3%83.3%
A40Beefeater defence333.3%83.3%
D55QGD, Neo-orthodox variation, 7.Bxf6633.3%83.3%
B98Sicilian, Najdorf, Browne variation1118.2%81.8%
C74Ruy Lopez, modern Steinitz defence837.5%81.3%
A72Benoni, classical without 9.O-O812.5%81.3%
C29Vienna gambit, Breyer variation1040.0%80.0%
A56Czech Benoni defence1931.6%78.9%
C83Ruy Lopez, open, 9...Be7, 10.Re1742.9%78.6%
E70King's Indian, Kramer system1428.6%78.6%
D16QGD Slav accepted, Alapin variation714.3%78.6%
C19French, Winawer, advance, Smyslov variation3023.3%78.3%
A09Reti accepted, Keres variation922.2%77.8%
D16QGD Slav, Steiner variation1822.2%77.8%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc21533.3%76.7%
A56Benoni defence, Hromodka system1915.8%76.3%
B72Sicilian, dragon, classical, Nottingham variation250.0%75.0%
A44Semi-Benoni (`blockade variation')250.0%75.0%
E64King's Indian, fianchetto, Yugoslav system1030.0%75.0%
C33KGA, bishop's gambit, Gifford variation250.0%75.0%
C14French, classical, Rubinstein variation250.0%75.0%
D16QGD Slav, Soultanbeieff variation450.0%75.0%
C27Vienna, Alekhine variation250.0%75.0%
C64Ruy Lopez, classical defence, Charousek variation250.0%75.0%
C21Danish gambit250.0%75.0%
B20Sicilian, wing gambit250.0%75.0%
B03Alekhine's defence450.0%75.0%
C65Ruy Lopez, Berlin defence, Kaufmann variation250.0%75.0%
B22Sicilian, 2.c3, Heidenfeld variation250.0%75.0%
D31QGD, Alapin variation250.0%75.0%
D10QGD Slav defence, Alekhine variation40.0%75.0%
C51Evans gambit, Stone-Ware variation250.0%75.0%
B03Alekhine's defence, four pawns attack, 7.Be31250.0%75.0%
B06Robatsch defence, Two knights variation40.0%75.0%
C49Four knights650.0%75.0%
C41Philidor, Nimzovich, Sokolsky variation250.0%75.0%
D33QGD, Tarrasch, Wagner variation250.0%75.0%
B44Sicilian, Szen variation, Dely-Kasparov gambit250.0%75.0%
A01Nimzovich-Larsen attack, Dutch variation80.0%75.0%
D15QGD Slav, Suechting variation250.0%75.0%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)450.0%75.0%
C40QP counter-gambit (elephant gambit)250.0%75.0%
C10French, Frere (Becker) variation616.7%75.0%
D00Queen's pawn, stonewall attack40.0%75.0%
B12Caro-Kann, advance, Short variation450.0%75.0%
C43Petrov, Urusov gambit250.0%75.0%
B27Sicilian defence250.0%75.0%
E70King's Indian, 4.e46622.7%73.5%
E15Queen's Indian, 4.g3 Bb72429.2%72.9%
B06Robatsch defence, Pseudo-Austrian attack2218.2%72.7%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation911.1%72.2%
C80Ruy Lopez, open (Tarrasch) defence933.3%72.2%
C42Petrov, classical attack, Mason variation933.3%72.2%
C44Ponziani opening933.3%72.2%
C51Evans gambit, Paulsen variation911.1%72.2%
A88Dutch, Leningrad, main variation with c63426.5%72.1%
E09Catalan, closed, main line2313.0%71.7%
A61Benoni defence6918.8%71.7%
E94King's Indian, orthodox, Donner variation1414.3%71.4%
A12English, Caro-Kann defensive system, Bogolyubov variation728.6%71.4%
E93King's Indian, Petrosian system, main line728.6%71.4%
A73Benoni, classical, 9.O-O70.0%71.4%
A04Reti, Pirc-Lisitsin gambit1241.7%70.8%
C45Scotch, Horwitz attack1225.0%70.8%
B36Sicilian, accelerated fianchetto, Gurgenidze variation3625.0%70.8%
C22Centre game, Berger variation5623.2%70.5%
A18English, Mikenas-Carls, Flohr variation520.0%70.0%
A54Old Indian, Ukrainian variation1060.0%70.0%
A99Dutch, Ilyin-Genevsky variation with b3560.0%70.0%
D83Gruenfeld, Gruenfeld gambit520.0%70.0%
B74Sicilian, dragon, classical, Reti-Tartakower variation520.0%70.0%
C16French, Winawer, Petrosian variation2030.0%70.0%
C44Inverted Hanham520.0%70.0%
A63Benoni, fianchetto, 9...Nbd7520.0%70.0%
E99King's Indian, orthodox, Aronin-Taimanov, main line520.0%70.0%
C95Ruy Lopez, closed, Breyer, Simagin variation560.0%70.0%
A16English, Anglo-Gruenfeld, Smyslov defense560.0%70.0%
B00KP, Nimzovich defence, Bogolyubov variation520.0%70.0%
C34KGA, Fischer defence520.0%70.0%
E70King's Indian, accelerated Averbakh system520.0%70.0%
C47Four knights, Scotch, Krause variation520.0%70.0%
D96Gruenfeld, Russian variation1546.7%70.0%
E02Catalan, open, 5.Qa41040.0%70.0%
C21Centre game4546.7%70.0%
B55Sicilian, Prins variation, Venice attack560.0%70.0%
C40Gunderam defence2832.1%69.6%
A40Modern defence4626.1%69.6%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence1838.9%69.4%
D98Gruenfeld, Russian, Smyslov variation3935.9%69.2%
E38Nimzo-Indian, classical, 4...c55230.8%69.2%
B04Alekhine's defence, modern variation1346.2%69.2%
D67QGD, Orthodox defence, Bd3 line, 11.O-O1315.4%69.2%
A60Benoni defence1330.8%69.2%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)2152.4%69.0%
B05Alekhine's defence, modern variation, 4...Bg45332.1%68.9%
A40Queen's pawn, English defence1625.0%68.8%
C58Two knights defence837.5%68.8%
A36English, symmetrical variation2420.8%68.8%
D00Queen's pawn, Mason variation, Steinitz counter-gambit862.5%68.8%
B60Sicilian, Richter-Rauzer4837.5%68.8%
B13Caro-Kann, Panov-Botvinnik, normal variation812.5%68.8%
C45Scotch, Potter variation837.5%68.8%
B05Alekhine's defence, modern, Flohr variation812.5%68.8%
A00Saragossa opening862.5%68.8%
E77King's Indian, Four pawns attack2718.5%68.5%
A13English, Neo-Catalan2740.7%68.5%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation6526.2%68.5%
D80Gruenfeld defence1931.6%68.4%
A77Benoni, classical, 9...Re8, 10.Nd21921.1%68.4%
E46Nimzo-Indian, Simagin variation119.1%68.2%
A28English, Nenarokov variation1145.5%68.2%
B83Sicilian, modern Scheveningen, main line with Nb31435.7%67.9%
E49Nimzo-Indian, 4.e3, Botvinnik system2850.0%67.9%
D28QGA, classical, 7...b51729.4%67.6%
C17French, Winawer, advance variation1741.2%67.6%
B04Alekhine's defence, modern, fianchetto variation2035.0%67.5%
B25Sicilian, closed2035.0%67.5%
B09Pirc, Austrian attack, dragon formation2650.0%67.3%
C96Ruy Lopez, closed, Keres (...Nd7) defence5223.1%67.3%
B03Alekhine's defence, O'Sullivan gambit366.7%66.7%
D60QGD, Orthodox defence944.4%66.7%
C22Centre game, Paulsen attack30.0%66.7%
E53Nimzo-Indian, 4.e3, main line with ...c55143.1%66.7%
C25Vienna, Paulsen variation366.7%66.7%
C61Ruy Lopez, Bird's defence60.0%66.7%
C30KGD, classical variation944.4%66.7%
D81Gruenfeld, Russian variation666.7%66.7%
C67Ruy Lopez, Berlin defence, Minckwitz variation30.0%66.7%
B12de Bruycker defence30.0%66.7%
D07QGD, Chigorin defence, Janowski variation633.3%66.7%
E76King's Indian, Four pawns attack2138.1%66.7%
A53Old Indian, Janowski variation922.2%66.7%
C13French, classical, Vistaneckis (Nimzovich) variation60.0%66.7%
D01Richter-Veresov attack, Richter variation366.7%66.7%
C13French, classical, Anderssen-Richter variation30.0%66.7%
D05Colle system944.4%66.7%
E51Nimzo-Indian, 4.e3, Ragozin variation366.7%66.7%
B06Robatsch defence, Gurgenidze variation30.0%66.7%
B29Sicilian, Nimzovich-Rubinstein variation1233.3%66.7%
B63Sicilian, Richter-Rauzer, Rauzer attack2722.2%66.7%
E73King's Indian, Semi-Averbakh system30.0%66.7%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be72729.6%66.7%
C03French, Tarrasch, Guimard variation1822.2%66.7%
C82Ruy Lopez, open, Motzko attack366.7%66.7%
B09Pirc, Austrian attack, 6.Be3922.2%66.7%
B53Sicilian, Chekhover, Zaitsev variation30.0%66.7%
D25QGA, Smyslov variation666.7%66.7%
C67Ruy Lopez, Berlin defence, Cordel variation30.0%66.7%
E92King's Indian, classical variation633.3%66.7%
C63Ruy Lopez, Schliemann defence30.0%66.7%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation366.7%66.7%
A89Dutch, Leningrad, main variation with Nc62433.3%66.7%
C41Philidor, Hanham variation366.7%66.7%
D51QGD, 4.Bg5 Nbd730.0%66.7%
C17French, Winawer, advance, 5.a35523.6%66.4%
D47QGD semi-Slav, neo-Meran (Lundin variation)3438.2%66.2%
B98Sicilian, Najdorf variation3426.5%66.2%
B76Sicilian, dragon, Yugoslav attack, Rauser variation13026.2%66.2%
C80Ruy Lopez, open, Bernstein variation5036.0%66.0%
B16Caro-Kann, Bronstein-Larsen variation2222.7%65.9%
B42Sicilian, Kan, Gipslis variation1926.3%65.8%
E53Nimzo-Indian, 4.e3, Keres variation1643.8%65.6%
D35QGD, exchange, positional line7838.5%65.4%
C12French, MacCutcheon, Janowski variation1338.5%65.4%
D27QGA, classical, Geller variation1353.8%65.4%
B01Scandinavian defence, Lasker variation1338.5%65.4%
B00Owen defence3333.3%65.2%
C42Petrov three knights game4323.3%65.1%
A96Dutch, classical variation1030.0%65.0%
B32Sicilian, Labourdonnais-Loewenthal variation2050.0%65.0%
C18French, Winawer, advance variation2725.9%64.8%
C69Ruy Lopez, exchange, Gligoric variation5135.3%64.7%
A80Dutch5131.4%64.7%
D97Gruenfeld, Russian, Byrne (Simagin) variation1723.5%64.7%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation10617.9%64.6%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf64829.2%64.6%
C16French, Winawer, advance variation10729.9%64.5%
E91King's Indian, 6.Be28033.8%64.4%
A42Modern defence, Averbakh system1442.9%64.3%
C23Bishop's opening, Philidor counter-attack2864.3%64.3%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit2142.9%64.3%
C71Ruy Lopez, modern Steinitz defence, Three knights variation742.9%64.3%
D25QGA, 4.e3742.9%64.3%
D25QGA, Flohr variation1428.6%64.3%
C20Alapin's opening714.3%64.3%
E72King's Indian with e4 & g3742.9%64.3%
D87Gruenfeld, exchange, Seville variation2142.9%64.3%
E62King's Indian, fianchetto, Simagin variation714.3%64.3%
A59Benko gambit, main line1428.6%64.3%
C55Two knights defence742.9%64.3%
D17QGD Slav, Krause attack4930.6%64.3%
C44Ponziani, Jaenisch counter-attack2540.0%64.0%
B07Robatsch defence, Geller's system3633.3%63.9%
A42Pterodactyl defence1850.0%63.9%
D31QGD, 3.Nc31838.9%63.9%
B01Scandinavian, Marshall variation8341.0%63.9%
E71King's Indian, Makagonov system (5.h3)4725.5%63.8%
C97Ruy Lopez, closed, Chigorin defence27629.0%63.8%
E90King's Indian, 5.Nf39128.6%63.7%
B28Sicilian, O'Kelly variation1154.5%63.6%
D30QGD, Capablanca-Duras variation2236.4%63.6%
D00Queen's pawn, Chigorin variation1154.5%63.6%
A13English, Wimpey system1154.5%63.6%
C43Petrov, modern attack, main line2245.5%63.6%
C65Ruy Lopez, Berlin defence, Beverwijk variation4822.9%63.5%
D46QGD semi-Slav, Romih variation8636.0%63.4%
C78Ruy Lopez, 5.O-O9037.8%63.3%
C02French, advance, Wade variation3020.0%63.3%
C64Ruy Lopez, classical defence, 4.c31931.6%63.2%
C26Vienna game2330.4%63.0%
E95King's Indian, orthodox, 7...Nbd7, 8.Re14634.8%63.0%
A41Old Indian defence3534.3%62.9%
B08Pirc, classical (two knights) system4332.6%62.8%
E52Nimzo-Indian, 4.e3, main line with ...b64736.2%62.8%
A57Benko gambit5123.5%62.7%
B73Sicilian, dragon, classical, Richter variation825.0%62.5%
C46Three knights, Steinitz variation825.0%62.5%
B04Alekhine's defence, modern, Larsen variation2839.3%62.5%
E74King's Indian, Averbakh, 6...c5825.0%62.5%
C00French, Wing gambit425.0%62.5%
E13Queen's Indian, 4.Nc3, main line1637.5%62.5%
A24English, Bremen system with ...g6850.0%62.5%
C80Ruy Lopez, open, 6.d4475.0%62.5%
C96Ruy Lopez, closed (8...Na5)850.0%62.5%
C57Two knights defence, Ulvestad variation475.0%62.5%
D26QGA, classical, Steinitz variation475.0%62.5%
E81King's Indian, Saemisch, Byrne variation475.0%62.5%
E67King's Indian, fianchetto with ...Nd71650.0%62.5%
A87Dutch, Leningrad, main variation1662.5%62.5%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence1612.5%62.5%
B90Sicilian, Najdorf, Adams attack1258.3%62.5%
E17Queen's Indian, Euwe variation425.0%62.5%
C39KGA, Kieseritsky, Kolisch defence475.0%62.5%
A46Queen's pawn, Yusupov-Rubinstein system4438.6%62.5%
A32English, symmetrical variation2035.0%62.5%
C83Ruy Lopez, open, Malkin variation475.0%62.5%
D05Queen's pawn game, Zukertort variation425.0%62.5%
C55Two knights defence, Perreux variation475.0%62.5%
C34KGA, Schallop defence425.0%62.5%
E83King's Indian, Saemisch, 6...Nc6475.0%62.5%
C02French, advance, Milner-Barry gambit875.0%62.5%
C00St. George defence475.0%62.5%
C52Evans gambit, compromised defence425.0%62.5%
A52Budapest, Rubinstein variation850.0%62.5%
A00Polish, Outflank variation425.0%62.5%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation425.0%62.5%
D24QGA, 4.Nc31637.5%62.5%
A21English, Troeger defence1625.0%62.5%
C99Ruy Lopez, closed, Chigorin, 12...c5d448443.4%62.4%
A62Benoni, fianchetto variation5330.2%62.3%
D66QGD, Orthodox defence, Bd3 line4141.5%62.2%
C89Ruy Lopez, Marshall, main line, 14...Qh33716.2%62.2%
A23English, Bremen system, Keres variation2920.7%62.1%
D87Gruenfeld, exchange, Spassky variation5837.9%62.1%
B42Sicilian, Kan, Swiss cheese variation2138.1%61.9%
A28English, four knights, Stean variation2138.1%61.9%
D63QGD, Orthodox defence, 7.Rc11729.4%61.8%
C95Ruy Lopez, closed, Breyer, Gligoric variation1729.4%61.8%
D55QGD, Neo-orthodox variation, 7.Bh41752.9%61.8%
A22English, Carls' Bremen system3435.3%61.8%
B23Sicilian, chameleon variation4339.5%61.6%
E87King's Indian, Saemisch, orthodox, 7.d53930.8%61.5%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O1346.2%61.5%
B32Sicilian, Flohr variation1330.8%61.5%
B84Sicilian, Scheveningen, classical, Nd7 system1330.8%61.5%
B81Sicilian, Scheveningen, Keres attack44432.0%61.5%
C41Philidor, Improved Hanham variation6137.7%61.5%
D06QGD, Marshall defence4445.5%61.4%
C66Ruy Lopez, Berlin defence, hedgehog variation6653.0%61.4%
E62King's Indian, fianchetto, Larsen system4445.5%61.4%
B00KP, Nimzovich defence2240.9%61.4%
B57Sicilian, Sozin, not Scheveningen2250.0%61.4%
E16Queen's Indian, Yates variation3125.8%61.3%
C06French, Tarrasch, closed variation, main line31038.4%61.1%
C71Ruy Lopez, modern Steinitz defence1833.3%61.1%
D90Gruenfeld, Flohr variation911.1%61.1%
B75Sicilian, dragon, Yugoslav attack2733.3%61.1%
D63QGD, Orthodox defence, Swiss (Henneberger) variation1844.4%61.1%
D94Gruenfeld, Opovcensky variation933.3%61.1%
D60QGD, Orthodox defence, Botvinnik variation933.3%61.1%
B44Sicilian, Szen, hedgehog variation5937.3%61.0%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation5042.0%61.0%
A55Old Indian, main line6446.9%60.9%
C66Ruy Lopez, closed Berlin defence, Showalter variation3253.1%60.9%
E94King's Indian, orthodox, 7...Nbd718435.9%60.9%
A34English, symmetrical, three knights system8342.2%60.8%
A04Reti v Dutch6025.0%60.8%
B33Sicilian, Pelikan, Chelyabinsk variation60029.7%60.8%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne138022.4%60.7%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation10832.4%60.6%
A61Benoni, Nimzovich (knight's tour) variation4723.4%60.6%
C42Petrov, classical attack4740.4%60.6%
E17Queen's Indian, old main line, 6.O-O4736.2%60.6%
C42Petrov, classical attack, Jaenisch variation43040.2%60.3%
D44QGD semi-Slav, anti-Meran, Lilienthal variation5831.0%60.3%
D19QGD Slav, Dutch variation, main line3933.3%60.3%
A50Queen's pawn game10329.1%60.2%
E68King's Indian, fianchetto, classical variation, 8.e422334.1%60.1%
E69King's Indian, fianchetto, classical main line16934.9%60.1%
A85Dutch with c4 & Nc31020.0%60.0%
D33QGD, Tarrasch, Folkestone (Swedish) variation540.0%60.0%
B01Scandinavian gambit1553.3%60.0%
C43Petrov, modern (Steinitz) attack1040.0%60.0%
B04Alekhine's defence, modern, Keres variation1060.0%60.0%
A51Budapest, Fajarowicz variation50.0%60.0%
A40Polish defence580.0%60.0%
E73King's Indian, 5.Be2580.0%60.0%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation3053.3%60.0%
A00Dunst (Sleipner, Heinrichsen) opening540.0%60.0%
E10Blumenfeld counter-gambit1020.0%60.0%
D30QGD, Vienna variation540.0%60.0%
C88Ruy Lopez, Trajkovic counter-attack540.0%60.0%
B73Sicilian, dragon, classical, Zollner gambit540.0%60.0%
C66Ruy Lopez, closed Berlin defence, Wolf variation3060.0%60.0%
D06QGD, Grau (Sahovic) defence540.0%60.0%
C77Ruy Lopez, Morphy defence8035.0%60.0%
A02Bird's opening540.0%60.0%
D16QGD Slav, Smyslov variation1020.0%60.0%
C63Ruy Lopez, Schliemann defence, Berger variation2030.0%60.0%
B10Caro-Kann, anti-Caro-Kann defence12128.9%59.9%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation7138.0%59.9%
E61King's Indian defence, 3.Nc311727.4%59.8%
D34QGD, Tarrasch, Prague variation, 9.Bg55644.6%59.8%
D07QGD, Chigorin defence30135.2%59.8%
A17English, Nimzo-English opening7230.6%59.7%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed6241.9%59.7%
B07Pirc, Byrne variation3148.4%59.7%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be38835.2%59.7%
C02French, advance, Euwe variation14535.2%59.7%
A53Old Indian defence14032.1%59.6%
D48QGD semi-Slav, Meran, old main line7339.7%59.6%
A47Queen's Indian defence8936.0%59.6%
D11QGD Slav, Breyer variation2133.3%59.5%
D02Queen's pawn game, Krause variation2133.3%59.5%
D13QGD Slav, exchange variation7435.1%59.5%
E11Bogo-Indian defence11738.5%59.4%
E18Queen's Indian, old main line, 7.Nc314943.6%59.4%
A41Old Indian, Tartakower (Wade) variation4835.4%59.4%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd1656.3%59.4%
A90Dutch defence4330.2%59.3%
C72Ruy Lopez, modern Steinitz defence, 5.O-O4334.9%59.3%
A21English opening21730.0%59.2%
E19Queen's Indian, old main line, 9.Qxc316336.2%59.2%
D17QGD Slav, Wiesbaden variation7131.0%59.2%
B85Sicilian, Scheveningen, classical, Maroczy system1127.3%59.1%
A01Nimzovich-Larsen attack, English variation1127.3%59.1%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc31127.3%59.1%
A54Old Indian, Ukrainian variation, 4.Nf31145.5%59.1%
C48Four knights, Rubinstein counter-gambit, exchange variation1181.8%59.1%
B15Caro-Kann, Tartakower (Nimzovich) variation2236.4%59.1%
B02Alekhine's defence, Two pawns' (Lasker's) attack1145.5%59.1%
E88King's Indian, Saemisch, orthodox, 7.d5 c66132.8%59.0%
D20Queen's gambit accepted17237.8%59.0%
C77Ruy Lopez, Anderssen variation5042.0%59.0%
A43Old Benoni defence7828.2%59.0%
B15Caro-Kann, Gurgenidze system5635.7%58.9%
A39English, symmetrical, main line with d48444.0%58.9%
E20Nimzo-Indian, Kmoch variation5632.1%58.9%
A49King's Indian, fianchetto without c414635.6%58.9%
E10Queen's pawn game66439.8%58.9%
B33Sicilian, Pelikan, Bird variation3435.3%58.8%
C91Ruy Lopez, closed, 9.d426130.3%58.8%
C19French, Winawer, advance, poisoned pawn variation66131.3%58.8%
C87Ruy Lopez, closed, Averbach variation5736.8%58.8%
C64Ruy Lopez, classical defence, Benelux variation 11436.8%58.8%
A31English, symmetrical, Benoni formation12044.2%58.8%
D19QGD Slav, Dutch variation27033.7%58.7%
E80King's Indian, Saemisch variation2330.4%58.7%
E43Nimzo-Indian, Fischer variation7037.1%58.6%
B83Sicilian, modern Scheveningen, main line7640.8%58.6%
E92King's Indian, Gligoric-Taimanov system15824.7%58.5%
D42QGD, Semi-Tarrasch, 7.Bd34148.8%58.5%
B32Sicilian defence10025.0%58.5%
C03French, Tarrasch20041.0%58.5%
B07Pirc, 150 attack5341.5%58.5%
C98Ruy Lopez, closed, Chigorin, 12...Nc67132.4%58.5%
B00King's pawn opening11326.5%58.4%
B42Sicilian, Kan, 5.Bd330535.4%58.4%
E83King's Indian, Saemisch, Panno formation650.0%58.3%
B60Sicilian, Richter-Rauzer, Larsen variation1816.7%58.3%
A86Dutch, Leningrad variation650.0%58.3%
C25Vienna gambit650.0%58.3%
B71Sicilian, dragon, Levenfish variation616.7%58.3%
B41Sicilian, Kan variation1827.8%58.3%
C90Ruy Lopez, closed, Suetin variation616.7%58.3%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation2450.0%58.3%
D15QGD Slav, 5.e3 (Alekhine variation)1827.8%58.3%
B79Sicilian, dragon, Yugoslav attack, 12.h4616.7%58.3%
D30QGD Slav3056.7%58.3%
C73Ruy Lopez, modern Steinitz defence, Alapin variation616.7%58.3%
D52QGD650.0%58.3%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation616.7%58.3%
A40Queen's pawn, Keres defence15736.3%58.3%
D37QGD, classical variation (5.Bf4)63441.6%58.2%
D30QGD5543.6%58.2%
B20Sicilian, Keres variation (2.Ne2)4341.9%58.1%
E94King's Indian, orthodox variation14333.6%58.0%
D52QGD, Cambridge Springs defence, Yugoslav variation5044.0%58.0%
B82Sicilian, Scheveningen, 6.f47533.3%58.0%
C62Ruy Lopez, old Steinitz defence9435.1%58.0%
B54Sicilian, Prins (Moscow) variation6336.5%57.9%
B21Sicilian, Smith-Morra gambit1952.6%57.9%
D25QGA, Janowsky-Larsen variation3842.1%57.9%
D30QGD, Hastings variation1931.6%57.9%
A47Queen's Indian, Marienbad system1931.6%57.9%
E44Nimzo-Indian, Fischer variation, 5.Ne25735.1%57.9%
C09French, Tarrasch, open variation, main line22952.0%57.9%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)3253.1%57.8%
B06Robatsch (modern) defence19328.5%57.8%
D94Gruenfeld, 5.e35846.6%57.8%
D47QGD semi-Slav, Meran variation16242.6%57.7%
D22QGA, Alekhine defence1353.8%57.7%
E90King's Indian, Larsen variation1338.5%57.7%
E39Nimzo-Indian, classical, Pirc variation11137.8%57.7%
D21QGA, 3.Nf34632.6%57.6%
D68QGD, Orthodox defence, classical variation3342.4%57.6%
B11Caro-Kann, Two knights, 3...Bg44030.0%57.5%
E15Queen's Indian, 4.g312832.0%57.4%
D31QGD, Charousek (Petrosian) variation5433.3%57.4%
A28English, four knights, Romanishin variation8150.6%57.4%
A84Dutch defence5433.3%57.4%
C05French, Tarrasch, closed variation12234.4%57.4%
B45Sicilian, Taimanov variation50235.5%57.4%
D32QGD, Tarrasch defence3450.0%57.4%
E60King's Indian, 3.g310937.6%57.3%
D97Gruenfeld, Russian, Prins variation11744.4%57.3%
D20QGA, 3.e417934.1%57.3%
A15English, 1...Nf6 (Anglo-Indian defense)14529.0%57.2%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack36034.4%57.2%
B10Caro-Kann defence35434.2%57.2%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation3528.6%57.1%
A07Reti, King's Indian attack, Pachman system728.6%57.1%
B94Sicilian, Najdorf, 6.Bg52821.4%57.1%
C56Two knights defence757.1%57.1%
A13English, Romanishin gambit785.7%57.1%
C41Philidor's defence3540.0%57.1%
A30English, symmetrical, hedgehog system45538.7%57.1%
A97Dutch, Ilyin-Genevsky, Winter variation757.1%57.1%
D55QGD, 6.Nf3728.6%57.1%
A25English, closed system (without ...d6)2138.1%57.1%
B82Sicilian, Scheveningen, Tal variation728.6%57.1%
B03Alekhine's defence, four pawns attack728.6%57.1%
E60King's Indian, 3.Nf340035.8%57.1%
A25English, closed system15535.5%57.1%
C48Four knights, Rubinstein counter-gambit15039.3%57.0%
C10French, Rubinstein variation17944.7%57.0%
D93Gruenfeld with Bf4 e34348.8%57.0%
B27Sicilian, Hungarian variation15834.2%57.0%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation7241.7%56.9%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd415938.4%56.9%
B49Sicilian, Taimanov variation15937.1%56.9%
B88Sicilian, Sozin, Leonhardt variation5827.6%56.9%
B01Scandinavian (centre counter) defence8740.2%56.9%
C24Bishop's opening, Berlin defence8038.8%56.9%
B03Alekhine's defence, exchange variation5131.4%56.9%
C73Ruy Lopez, modern Steinitz defence, Richter variation2240.9%56.8%
D94Gruenfeld, Smyslov defence2259.1%56.8%
C23Bishop's opening6634.8%56.8%
A30English, symmetrical, hedgehog, flexible formation7443.2%56.8%
D46QGD semi-Slav, Chigorin defence7435.1%56.8%
E01Catalan, closed3033.3%56.7%
D35QGD, exchange, positional line, 5...c63033.3%56.7%
B43Sicilian, Kan, 5.Nc329437.8%56.6%
C50King's pawn game7634.2%56.6%
D92Gruenfeld, 5.Bf48451.2%56.5%
C11French, Steinitz, Boleslavsky variation30934.0%56.5%
B85Sicilian, Scheveningen, classical3148.4%56.5%
C10French, Paulsen variation15529.0%56.5%
E67King's Indian, fianchetto, classical variation7830.8%56.4%
A46Queen's pawn game36132.4%56.4%
B12Caro-Kann, advance variation73133.1%56.4%
D27QGA, classical, 6...a639449.2%56.3%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)7128.2%56.3%
C11French, Steinitz variation11933.6%56.3%
E10Dzindzikhashvili defence887.5%56.3%
C11French, Henneberger variation837.5%56.3%
A12English, Caro-Kann defensive system862.5%56.3%
A10English, Adorjan defence1650.0%56.3%
E56Nimzo-Indian, 4.e3, main line with 7...Nc61650.0%56.3%
C15French, Winawer, Alekhine (Maroczy) gambit2437.5%56.3%
B06Robatsch defence, Two knights, Suttles variation4837.5%56.3%
D29QGA, classical, Smyslov variation837.5%56.3%
D23QGA, Mannheim variation837.5%56.3%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation862.5%56.3%
D12QGD Slav, exchange variation1625.0%56.3%
D10QGD Slav, Winawer counter-gambit2420.8%56.3%
A41Robatsch defence, Rossolimo variation837.5%56.3%
D18QGD Slav, Dutch variation1612.5%56.3%
A81Dutch defence12834.4%56.3%
C26Vienna, Falkbeer variation837.5%56.3%
C88Ruy Lopez, closed, Balla variation837.5%56.3%
A17English opening3243.8%56.3%
A33English, symmetrical, Geller variation10530.5%56.2%
C11French, Burn variation75336.7%56.2%
C59Two knights defence9041.1%56.1%
A34English, symmetrical variation22134.4%56.1%
D27QGA, classical, Rubinstein variation45341.9%56.1%
A40Queen's pawn60838.3%56.0%
D86Gruenfeld, exchange, classical variation7542.7%56.0%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation5032.0%56.0%
B14Caro-Kann, Panov-Botvinnik attack, 5...e634242.4%56.0%
B40Sicilian, Anderssen variation11736.8%56.0%
D80Gruenfeld, Stockholm variation4235.7%56.0%
E63King's Indian, fianchetto, Panno variation48035.2%55.9%
B12Caro-Kann, Tartakower (fantasy) variation11040.9%55.9%
D28QGA, classical, 7.Qe21752.9%55.9%
A80Dutch, 2.Bg5 variation1729.4%55.9%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)31536.2%55.9%
C88Ruy Lopez, closed17936.9%55.9%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)456035.5%55.8%
C14French, classical, Steinitz variation6930.4%55.8%
E81King's Indian, Saemisch, 5...O-O18234.6%55.8%
C95Ruy Lopez, closed, Breyer, Borisenko variation30435.2%55.8%
A05Reti opening58238.0%55.8%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb64447.7%55.7%
D31QGD, semi-Slav4434.1%55.7%
A22English opening11531.3%55.7%
C42Petrov, classical attack, Marshall variation24936.5%55.6%
A33English, symmetrical variation16144.1%55.6%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)83231.4%55.6%
C70Ruy Lopez, Caro variation1833.3%55.6%
A48King's Indian, Torre attack12631.7%55.6%
D20QGA, Linares variation944.4%55.6%
A78Benoni, classical with ...Re8 and ...Na6944.4%55.6%
A75Benoni, classical with ...a6 and 10...Bg4922.2%55.6%
D46QGD semi-Slav, 6.Bd3944.4%55.6%
D15QGD Slav, Schlechter variation1844.4%55.6%
D34QGD, Tarrasch, Prague variation, 7...Be73638.9%55.6%
A00Van't Kruijs opening922.2%55.6%
B18Caro-Kann, classical, 6.h46432.8%55.5%
D38QGD, Ragozin variation32239.4%55.4%
E73King's Indian, Averbakh system4628.3%55.4%
A14English, Neo-Catalan declined2853.6%55.4%
A70Benoni, classical with e4 and Nf38427.4%55.4%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)81337.6%55.4%
E00Catalan opening35740.1%55.3%
B46Sicilian, Taimanov variation76837.1%55.3%
D47QGD semi-Slav, 7.Bc41926.3%55.3%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)1957.9%55.3%
C67Ruy Lopez, Berlin defence, open variation44942.8%55.2%
A56Benoni defence6729.9%55.2%
D45QGD semi-Slav, 5.e34831.3%55.2%
A30English, symmetrical variation71335.8%55.2%
B12Caro-Kann defence5831.0%55.2%
C70Ruy Lopez, Classical defence deferred5848.3%55.2%
C92Ruy Lopez, closed, Kholmov variation2927.6%55.2%
C89Ruy Lopez, Marshall counter-attack2934.5%55.2%
C88Ruy Lopez, closed, 7...O-O37036.2%55.1%
C42Petrov, Nimzovich attack3943.6%55.1%
C96Ruy Lopez, closed (10...c5)15638.5%55.1%
B10Caro-Kann, Two knights variation4940.8%55.1%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc15742.7%55.1%
A14English, Symmetrical, Keres defence10850.9%55.1%
D85Gruenfeld, exchange variation11840.7%55.1%
E41Nimzo-Indian, 4.e3 c57939.2%55.1%
E14Queen's Indian, 4.e331735.6%55.0%
C65Ruy Lopez, Berlin defence, Nyholm attack1050.0%55.0%
E82King's Indian, Saemisch, double fianchetto variation1030.0%55.0%
C82Ruy Lopez, open, St. Petersburg variation1010.0%55.0%
C53Giuoco Piano, Bird's attack2040.0%55.0%
B85Sicilian, Scheveningen, classical main line12043.3%55.0%
C52Evans gambit1030.0%55.0%
E66King's Indian, fianchetto, Yugoslav Panno4035.0%55.0%
C80Ruy Lopez, open, 7.Bb31050.0%55.0%
B01Scandinavian, Icelandic gambit1050.0%55.0%
C77Ruy Lopez, Wormald (Alapin) attack3023.3%55.0%
B62Sicilian, Richter-Rauzer, 6...e62030.0%55.0%
C41Philidor, Hanham, Schlechter variation1010.0%55.0%
C84Ruy Lopez, closed defence38537.1%54.9%
A08Reti, King's Indian attack6134.4%54.9%
C19French, Winawer, advance, positional main line28528.4%54.9%
A40Queen's pawn, Franco-Indian (Keres) defence9240.2%54.9%
B42Sicilian, Kan, Polugaievsky variation17635.8%54.8%
B54Sicilian19734.5%54.8%
A20English opening88240.0%54.8%
D48QGD semi-Slav, Meran, Reynolds' variation27035.6%54.8%
B80Sicilian, Scheveningen, English variation5225.0%54.8%
B47Sicilian, Taimanov (Bastrikov) variation111336.8%54.8%
C45Scotch, Mieses variation25129.9%54.8%
C78Ruy Lopez, Moeller defence12634.9%54.8%
B01Scandinavian, Pytel-Wade variation2152.4%54.8%
B40Sicilian defence71633.2%54.7%
D47QGD semi-Slav, Meran, Wade variation288934.5%54.7%
A07Reti, King's Indian attack (Barcza system)60141.3%54.7%
D55QGD, Petrosian variation11647.4%54.7%
C53Giuoco Piano39335.1%54.7%
C02French, advance variation18126.5%54.7%
B08Pirc, classical system, 5.Be213933.1%54.7%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd24334.9%54.7%
A37English, symmetrical, Botvinnik system reversed6526.2%54.6%
D10QGD Slav defence39035.9%54.6%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be721733.6%54.6%
C08French, Tarrasch, open, 4.ed ed20750.2%54.6%
E92King's Indian, Petrosian system, Stein variation10933.9%54.6%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack15342.5%54.6%
B50Sicilian35033.1%54.6%
B59Sicilian, Boleslavsky variation, 7.Nb31118.2%54.5%
A09Reti opening2245.5%54.5%
B04Alekhine's defence, modern, Schmid variation1136.4%54.5%
C55Two knights defence (Modern bishop's opening)12138.0%54.5%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd34450.0%54.5%
B07Pirc, Ufimtsev-Pytel variation4431.8%54.5%
C42Petrov, classical attack, Chigorin variation10031.0%54.5%
B52Sicilian, Canal-Sokolsky attack, 3...Bd79053.3%54.4%
D15QGD Slav, 4.Nc321434.1%54.4%
A11English, Caro-Kann defensive system6844.1%54.4%
B80Sicilian, Scheveningen variation30627.8%54.4%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation2347.8%54.3%
D30Queen's gambit declined92039.8%54.3%
B12Caro-Kann, 3.Nd24643.5%54.3%
C01French, exchange variation23239.7%54.3%
A13English opening, Agincourt variation11646.6%54.3%
D44QGD semi-Slav, anti-Meran gambit19833.8%54.3%
B17Caro-Kann, Steinitz variation43135.7%54.3%
D73Neo-Gruenfeld, 5.Nf37057.1%54.3%
A25English, closed, 5.Rb13551.4%54.3%
B87Sicilian, Sozin with ...a6 and ...b515237.5%54.3%
C49Four knights, symmetrical, Metger unpin7138.0%54.2%
D12QGD Slav, 4.e3 Bf533239.2%54.2%
A28English, four knights, 4.e321434.6%54.2%
A37English, symmetrical variation3625.0%54.2%
C74Ruy Lopez, Siesta, Kopayev variation1225.0%54.2%
A13English, Neo-Catalan accepted3641.7%54.2%
E22Nimzo-Indian, Spielmann variation1241.7%54.2%
A79Benoni, classical, 11.f31241.7%54.2%
E11Bogo-Indian defence, Nimzovich variation21633.3%54.2%
D89Gruenfeld, Spassky variation, main line, 13.Bd31275.0%54.2%
D10QGD Slav defence, exchange variation16839.3%54.2%
E32Nimzo-Indian, classical variation119441.5%54.1%
C45Scotch game44941.0%54.1%
C15French, Winawer (Nimzovich) variation4938.8%54.1%
A01Nimzovich-Larsen attack, classical variation3737.8%54.1%
E17Queen's Indian, Opovcensky variation7443.2%54.1%
B01Scandinavian defence3732.4%54.1%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd777829.7%54.0%
D11QGD Slav, 3.Nf317437.9%54.0%
D35QGD, 3...Nf62536.0%54.0%
D00Queen's pawn game2552.0%54.0%
B56Sicilian29032.8%54.0%
D85Gruenfeld, modern exchange variation69849.4%53.9%
A10English opening33342.9%53.9%
D14QGD Slav, exchange variation, 6.Bf4 Bf53946.2%53.8%
B77Sicilian, dragon, Yugoslav attack, 9...Bd72646.2%53.8%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)1346.2%53.8%
C50Giuoco Piano2646.2%53.8%
E17Queen's Indian, anti-Queen's Indian system1346.2%53.8%
B02Alekhine's defence, Maroczy variation1330.8%53.8%
E30Nimzo-Indian, Leningrad variation5332.1%53.8%
A28English, four knights, Capablanca variation4042.5%53.8%
A58Benko gambit accepted6741.8%53.7%
A04Reti opening107336.9%53.7%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation82946.1%53.7%
C00French defence13638.2%53.7%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system8236.6%53.7%
B22Sicilian, Alapin's variation (2.c3)71538.5%53.6%
E60King's Indian defence9837.8%53.6%
B09Pirc, Austrian attack1435.7%53.6%
E00Queen's pawn game12637.3%53.6%
C49Four knights, symmetrical, Maroczy system1435.7%53.6%
C11French, Swiss variation2835.7%53.6%
E62King's Indian, fianchetto variation1435.7%53.6%
C17French, Winawer, advance, Bogolyubov variation11428.1%53.5%
B23Sicilian, closed, 2...Nc613039.2%53.5%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc324732.4%53.4%
D31QGD, semi-Slav, Marshall gambit7335.6%53.4%
C00French, Chigorin variation10338.8%53.4%
B19Caro-Kann, classical, Spassky variation66439.6%53.4%
D41QGD, Semi-Tarrasch, 5.cd7542.7%53.3%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)37835.2%53.3%
A01Nimzovich-Larsen attack, modern variation9134.1%53.3%
D05Queen's pawn game7635.5%53.3%
D78Neo-Gruenfeld, 6.O-O c67739.0%53.2%
C86Ruy Lopez, Worrall attack, sharp line3141.9%53.2%
C00French, Pelikan variation3135.5%53.2%
B73Sicilian, dragon, classical, 8.O-O3135.5%53.2%
C12French, MacCutcheon, Lasker variation, 8...g69429.8%53.2%
D46QGD semi-Slav, Bogolyubov variation6342.9%53.2%
B90Sicilian, Najdorf, Byrne (English) attack421029.8%53.1%
A05Reti, King's Indian attack, Spassky's variation4932.7%53.1%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation4932.7%53.1%
C91Ruy Lopez, closed, Bogolyubov variation96537.3%53.1%
A45Queen's pawn game40938.6%53.1%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)16442.7%53.0%
A15English opening73938.7%53.0%
D00Queen's pawn, Mason variation19938.7%53.0%
E34Nimzo-Indian, classical, Noa variation11749.6%53.0%
D52QGD, Cambridge Springs defence, Bogoljubow variation6847.1%52.9%
C42Petrov, Cozio (Lasker) attack1747.1%52.9%
C92Ruy Lopez, closed, 9.h36841.2%52.9%
C68Ruy Lopez, exchange variation1747.1%52.9%
C25Vienna game6933.3%52.9%
D26QGA, classical variation19152.4%52.9%
E12Queen's Indian defence8729.9%52.9%
A26English, closed system3525.7%52.9%
D43QGD semi-Slav98637.1%52.8%
D58QGD, Tartakower (Makagonov-Bondarevsky) system202144.8%52.8%
D39QGD, Ragozin, Vienna variation53547.3%52.8%
D99Gruenfeld defence, Smyslov, main line3650.0%52.8%
D41QGD, Semi-Tarrasch with e31850.0%52.8%
B23Sicilian, closed39832.2%52.8%
B07Pirc defence7328.8%52.7%
B36Sicilian, accelerated fianchetto, Maroczy bind7347.9%52.7%
A35English, symmetrical, four knights system27440.5%52.7%
A16English opening13028.5%52.7%
E12Queen's Indian, Petrosian system109037.2%52.7%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation9424.5%52.7%
D17QGD Slav, Carlsbad variation5731.6%52.6%
C02French, advance, Paulsen attack11729.9%52.6%
C49Four knights, symmetrical variation3933.3%52.6%
D02Queen's pawn game111635.6%52.6%
A45Trompovsky attack (Ruth, Opovcensky opening)21632.9%52.5%
D11QGD Slav, 4.e313834.1%52.5%
D77Neo-Gruenfeld, 6.O-O7941.8%52.5%
D26QGA, 4...e66045.0%52.5%
E32Nimzo-Indian, classical, Adorjan gambit2025.0%52.5%
C23Bishop's opening, Classical variation2035.0%52.5%
B99Sicilian, Najdorf, 7...Be7 main line14318.2%52.4%
E11Bogo-Indian defence, Gruenfeld variation14531.7%52.4%
B90Sicilian, Najdorf35632.3%52.4%
E84King's Indian, Saemisch, Panno main line6435.9%52.3%
A50Queen's Indian accelerated2231.8%52.3%
E92King's Indian, Andersson variation2360.9%52.2%
C04French, Tarrasch, Guimard main line2326.1%52.2%
D45QGD semi-Slav, Stoltz variation339039.5%52.2%
B48Sicilian, Taimanov variation63736.3%52.0%
B70Sicilian, dragon variation7433.8%52.0%
C42Petrov, Italian variation2524.0%52.0%
E06Catalan, closed, 5.Nf337746.7%52.0%
C50Giuoco Pianissimo, Italian four knights variation7635.5%52.0%
C07French, Tarrasch, open variation46646.8%51.9%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation5234.6%51.9%
B53Sicilian, Chekhover variation7834.6%51.9%
B06Robatsch defence2737.0%51.9%
A07Reti, King's Indian attack (with ...c5)5444.4%51.9%
B33Sicilian, Sveshnikov variation27537.5%51.8%
A29English, four knights, kingside fianchetto125037.5%51.8%
B98Sicilian, Najdorf, 7...Be72839.3%51.8%
D49QGD semi-Slav, Meran, Rabinovich variation2832.1%51.8%
C46Three knights game2832.1%51.8%
E12Queen's Indian, 4.Nc373835.2%51.8%
D34QGD, Tarrasch, Prague variation, Normal position5743.9%51.8%
B21Sicilian, Grand Prix attack17236.0%51.7%
C19French, Winawer, advance, 6...Ne72948.3%51.7%
C69Ruy Lopez, exchange variation, 5.O-O2934.5%51.7%
D61QGD, Orthodox defence, Rubinstein variation2948.3%51.7%
C00French, King's Indian attack15032.7%51.7%
D37QGD, 4.Nf339338.7%51.7%
A41Queen's Pawn6431.3%51.6%
D82Gruenfeld, 4.Bf43246.9%51.6%
A10English, Anglo-Dutch defense3336.4%51.5%
C46Four knights game7048.6%51.4%
A00Benko's opening31737.2%51.4%
D56QGD, Lasker defence3625.0%51.4%
A27English, three knights system3727.0%51.4%
A21English, Kramnik-Shirov counterattack7631.6%51.3%
B93Sicilian, Najdorf, 6.f423742.6%51.3%
C65Ruy Lopez, Berlin defence7934.2%51.3%
B14Caro-Kann, Panov-Botvinnik attack, 5...g64047.5%51.3%
C18French, Winawer, classical variation4124.4%51.2%
C78Ruy Lopez, Archangelsk (counterthrust) variation12339.0%51.2%
B41Sicilian, Kan, Maroczy bind (Reti variation)4129.3%51.2%
A05Reti, King's Indian attack8447.6%51.2%
E59Nimzo-Indian, 4.e3, main line42843.0%51.2%
C88Ruy Lopez, closed, anti-Marshall 8.a421632.9%51.2%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6273531.6%51.1%
C80Ruy Lopez, open, 8...Be69434.0%51.1%
E04Catalan, open, 5.Nf356739.3%51.1%
C59Two knights defence, Steinitz variation21428.0%50.9%
A06Reti opening21638.0%50.9%
D40QGD, Semi-Tarrasch defence10842.6%50.9%
B23Sicilian, Grand Prix attack5529.1%50.9%
B35Sicilian, accelerated fianchetto, modern variation with Bc411442.1%50.9%
C42Petrov's defence6334.9%50.8%
B90Sicilian, Najdorf, Lipnitzky attack13431.3%50.7%
B96Sicilian, Najdorf, 7.f47131.0%50.7%
A13English opening36234.0%50.7%
B18Caro-Kann, classical variation7346.6%50.7%
B57Sicilian, Sozin, Benko variation25541.6%50.6%
D02Queen's bishop game27031.5%50.6%
B13Caro-Kann, exchange variation9246.7%50.5%
B33Sicilian defence9334.4%50.5%
B30Sicilian defence30438.5%50.5%
E21Nimzo-Indian, three knights variation24035.8%50.4%
C00French defence, Steiner variation12544.8%50.4%
A48King's Indian, East Indian defence16336.8%50.3%
C43Petrov, modern attack, Symmetrical variation20935.4%50.2%
B89Sicilian, Sozin, 7.Be325131.1%50.2%
A90Dutch-Indian, Alekhine variation40.0%50.0%
C34KGA, Bonsch-Osmolovsky variation20.0%50.0%
E77King's Indian, Four pawns attack, Florentine gambit1100.0%50.0%
C29Vienna gambit1040.0%50.0%
C53Giuoco Piano, centre-holding variation2100.0%50.0%
B02Alekhine's defence, Saemisch attack560.0%50.0%
A45Blackmar-Diemer gambit911.1%50.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence1100.0%50.0%
C40Latvian, Fraser defence1100.0%50.0%
B10Caro-Kann, closed (Breyer) variation3735.1%50.0%
C45Scotch, Meitner variation1100.0%50.0%
D51QGD1100.0%50.0%
C12French, MacCutcheon variation2740.7%50.0%
C86Ruy Lopez, Worrall attack666.7%50.0%
C43Petrov, modern attack, Steinitz variation1100.0%50.0%
C33KGA, bishop's gambit1100.0%50.0%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)850.0%50.0%
E65King's Indian, fianchetto, Yugoslav, 7.O-O1250.0%50.0%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation2123.8%50.0%
D95Gruenfeld, Botvinnik variation633.3%50.0%
A84Dutch defence, Rubinstein variation2740.7%50.0%
B06Robatsch defence, three pawns attack1100.0%50.0%
D44QGD semi-Slav, 5.Bg5 dc1145.5%50.0%
B23Sicilian, Grand Prix attack, Schofman variation450.0%50.0%
C75Ruy Lopez, modern Steinitz defence1338.5%50.0%
D26QGA, classical variation, 6.O-O850.0%50.0%
E30Nimzo-Indian, Leningrad, ...b5 gambit333.3%50.0%
B58Sicilian, classical2254.5%50.0%
C89Ruy Lopez, Marshall, Kevitz variation1100.0%50.0%
C31KGD, Nimzovich counter-gambit2100.0%50.0%
B01Scandinavian defence, Gruenfeld variation20.0%50.0%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation20.0%50.0%
A48King's Indian, London system7241.7%50.0%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation333.3%50.0%
B20Sicilian, wing gambit, Carlsbad variation20.0%50.0%
C89Ruy Lopez, Marshall counter-attack, 11...c62227.3%50.0%
C56Two knights defence, Canal variation1100.0%50.0%
C45Scotch, Steinitz variation20.0%50.0%
E23Nimzo-Indian, Spielmann, Karlsbad variation1100.0%50.0%
C37KGA, Muzio gambit, Brentano defence1100.0%50.0%
C49Four knights, symmetrical, Capablanca variation333.3%50.0%
E36Nimzo-Indian, classical, Botvinnik variation20.0%50.0%
C60Ruy Lopez, Cozio defence, Paulsen variation20.0%50.0%
C48Four knights, Ranken variation1100.0%50.0%
A00Mieses opening1100.0%50.0%
E12Queen's Indian, 4.Nc3, Botvinnik variation333.3%50.0%
B72Sicilian, dragon, classical, Grigoriev variation1100.0%50.0%
A40Queen's pawn, Charlick (Englund) gambit1100.0%50.0%
C44Scotch, Lolli variation1145.5%50.0%
C41Philidor, Hanham, Delmar variation2100.0%50.0%
A92Dutch, stonewall with Nc3333.3%50.0%
E08Catalan, closed, Qc2 & b32040.0%50.0%
D40QGD, Semi-Tarrasch defence, Pillsbury variation20.0%50.0%
E60King's Indian, Anti-Gruenfeld520.0%50.0%
C46Four knights, Italian variation2330.4%50.0%
D08QGD, Albin counter-gambit333.3%50.0%
C49Four knights, Nimzovich (Paulsen) variation4100.0%50.0%
C14French, classical variation1100.0%50.0%
E29Nimzo-Indian, Saemisch, main line825.0%50.0%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg71060.0%50.0%
A00Grob's attack333.3%50.0%
D48QGD semi-Slav, Meran, Pirc variation20.0%50.0%
E79King's Indian, Four pawns attack, main line333.3%50.0%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc620.0%50.0%
C35KGA, Cunningham defence40.0%50.0%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
E15Queen's Indian, Buerger variation2100.0%50.0%
B15Caro-Kann, Gurgenidze counter-attack20.0%50.0%
D94Gruenfeld with e3 Bd31100.0%50.0%
E25Nimzo-Indian, Saemisch variation5100.0%50.0%
C41Philidor, Larsen variation633.3%50.0%
A94Dutch, stonewall with Ba33100.0%50.0%
C44Scotch gambit, Benima defence1100.0%50.0%
C84Ruy Lopez, closed, centre attack955.6%50.0%
D63QGD, Orthodox defence333.3%50.0%
C05French, Tarrasch, Botvinnik variation333.3%50.0%
A38English, symmetrical, main line with b31100.0%50.0%
A58Benko gambit, fianchetto variation1947.4%50.0%
E25Nimzo-Indian, Saemisch, Romanovsky variation1100.0%50.0%
C65Ruy Lopez, Berlin defence, Duras variation20.0%50.0%
C48Four knights, Bardeleben variation1100.0%50.0%
B09Pirc, Austrian attack, 6.e5560.0%50.0%
C90Ruy Lopez, closed, Lutikov variation560.0%50.0%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1100.0%50.0%
B62Sicilian, Richter-Rauzer, Keres variation1414.3%50.0%
C69Ruy Lopez, exchange, Bronstein variation5324.5%50.0%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation1100.0%50.0%
A69Benoni, four pawns attack, main line955.6%50.0%
D67QGD, Orthodox defence, Bd3 line1650.0%50.0%
E05Catalan, open, classical line2123.8%50.0%
C07French, Tarrasch, Eliskases variation742.9%50.0%
D50QGD, 4.Bg51442.9%50.0%
B07Pirc, Holmov system2100.0%50.0%
C41Philidor, Philidor counter-gambit1100.0%50.0%
B19Caro-Kann, classical, 7...Nd7955.6%50.0%
B03Alekhine's defence, exchange, Karpov variation1100.0%50.0%
E10Doery defence933.3%50.0%
A51Budapest defence declined20.0%50.0%
A98Dutch, Ilyin-Genevsky variation with Qc21100.0%50.0%
C47Four knights, Scotch, 4...exd44748.9%50.0%
A05Reti, King's Indian attack, Reti-Smyslov variation1145.5%50.0%
C70Ruy Lopez, Graz variation4100.0%50.0%
A92Dutch, stonewall variation1100.0%50.0%
C15French, Winawer, Alekhine gambit, Kan variation1764.7%50.0%
A17English, Queens Indian formation1338.5%50.0%
A82Dutch, Staunton gambit, Tartakower variation1100.0%50.0%
D79Neo-Gruenfeld, 6.O-O, main line3745.9%50.0%
A59Benko gambit, 7.e41100.0%50.0%
A93Dutch, stonewall, Botwinnik variation825.0%50.0%
C30KGD, classical, 4.c3333.3%50.0%
C80Ruy Lopez, open, Riga variation3100.0%50.0%
A61Benoni, Uhlmann variation850.0%50.0%
C50Giuoco Pianissimo14939.6%50.0%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation2254.5%50.0%
C53Giuoco Piano, Mestel variation1100.0%50.0%
A47Queen's Indian, Marienbad system, Berg variation333.3%50.0%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1100.0%50.0%
C52Evans gambit, compromised defence, Paulsen variation955.6%50.0%
D34QGD, Tarrasch, Reti variation2100.0%50.0%
A44Old Benoni defence4100.0%50.0%
B18Caro-Kann, classical, Flohr variation20.0%50.0%
C44King's pawn game333.3%50.0%
E72King's Indian, Pomar system1100.0%50.0%
C47Four knights, Scotch variation450.0%50.0%
B07Pirc, bayonet (Mariotti) attack2100.0%50.0%
C58Two knights defence, Paoli variation333.3%50.0%
C00French, Alapin variation2100.0%50.0%
C00French, Two knights variation2638.5%50.0%
A83Dutch, Staunton gambit, Staunton's line1100.0%50.0%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack20.0%50.0%
B05Alekhine's defence, modern, Alekhine variation1100.0%50.0%
C45Scotch, Ghulam Kassim variation2100.0%50.0%
C00French, Reti (Spielmann) variation850.0%50.0%
D22QGA, Alekhine defence, Alatortsev variation1100.0%50.0%
E62King's Indian, fianchetto with ...Nc61040.0%50.0%
E07Catalan, closed, Botvinnik variation825.0%50.0%
A00Novosibirsk opening1100.0%50.0%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation714.3%50.0%
C77Ruy Lopez, four knights (Tarrasch) variation2020.0%50.0%
C47Four knights, Belgrade gambit450.0%50.0%
C80Ruy Lopez, open, Berger variation2100.0%50.0%
B03Alekhine's defence, four pawns attack, fianchetto variation40.0%50.0%
C70Ruy Lopez20.0%50.0%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1100.0%50.0%
A16English, Anglo-Gruenfeld defense742.9%50.0%
C48Four knights, Rubinstein counter-gambit, Henneberger variation450.0%50.0%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation1947.4%50.0%
C11French, Steinitz, Gledhill attack1100.0%50.0%
A00Clemenz (Mead's, Basman's or de Klerk's) opening2100.0%50.0%
C10French, Fort Knox variation5335.8%50.0%
A56Vulture defence1100.0%50.0%
B72Sicilian, dragon, classical attack666.7%50.0%
D32QGD, Tarrasch defence, Marshall gambit333.3%50.0%
C28Vienna game3033.3%50.0%
A80Dutch, Manhattan (Alapin, Ulvestad) variation1100.0%50.0%
C48Four knights, Spanish, classical defence911.1%50.0%
C30KGD, classical, Reti variation1100.0%50.0%
A36English, symmetrical, Botvinnik system742.9%50.0%
A12English, Torre defensive system1353.8%50.0%
A06Santasiere's folly1323.1%50.0%
C93Ruy Lopez, closed, Smyslov defence1729.4%50.0%
C25Vienna, Pierce gambit1100.0%50.0%
C51Evans gambit declined, 5.a4520.0%50.0%
C78Ruy Lopez, ...b5 & ...d6714.3%50.0%
C80Ruy Lopez, open, Schlechter defence1100.0%50.0%
C53Giuoco Piano, Anderssen variation333.3%50.0%
E90King's Indian, Zinnowitz variation1338.5%50.0%
C13French, classical, Anderssen variation40.0%50.0%
C12French, MacCutcheon, Grigoriev variation1100.0%50.0%
E40Nimzo-Indian, 4.e34126.8%50.0%
D41QGD, Semi-Tarrasch, Kmoch variation1100.0%50.0%
D52QGD, Cambridge Springs defence, Argentine variation1100.0%50.0%
C34King's knight's gambit1100.0%50.0%
C14French, classical, Tarrasch variation20.0%50.0%
D01Richter-Veresov attack, Veresov variation333.3%50.0%
C80Ruy Lopez, open, Tartakower variation20.0%50.0%
A52Budapest, Alekhine, Abonyi variation20.0%50.0%
B39Sicilian, accelerated fianchetto, Breyer variation2646.2%50.0%
C50Hungarian defence560.0%50.0%
D71Neo-Gruenfeld, 5.cd1457.1%50.0%
D51QGD, 5...c6560.0%50.0%
D70Neo-Gruenfeld (Kemeri) defence714.3%50.0%
D32QGD, Tarrasch defence, 4.cd ed2100.0%50.0%
C42Petrov, French attack1100.0%50.0%
C48Four knights, Spanish variation1266.7%50.0%
B84Sicilian, Scheveningen (Paulsen), classical variation119036.1%49.7%
B44Sicilian defence11735.9%49.6%
A22English, Bremen, reverse dragon10338.8%49.5%
B10Caro-Kann, anti-anti-Caro-Kann defence10145.5%49.5%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)32536.6%49.4%
B97Sicilian, Najdorf, Poisoned pawn variation37344.0%49.3%
B92Sicilian, Najdorf, Opovcensky variation74037.2%49.3%
B20Sicilian defence31234.3%49.2%
A28English, four knights system6246.8%49.2%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d55637.5%49.1%
A46Queen's pawn, Torre attack5641.1%49.1%
D04Queen's pawn game10635.8%49.1%
B44Sicilian, Szen (`anti-Taimanov') variation9742.3%49.0%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f49241.3%48.9%
B83Sicilian, modern Scheveningen8831.8%48.9%
C64Ruy Lopez, classical (Cordel) defence4327.9%48.8%
A50Kevitz-Trajkovich defence4143.9%48.8%
B24Sicilian, closed4037.5%48.8%
E91King's Indian, Kazakh variation4042.5%48.8%
D02Queen's pawn game, Chigorin variation4047.5%48.8%
E12Queen's Indian, Miles variation3930.8%48.7%
B34Sicilian, accelerated fianchetto, modern variation3839.5%48.7%
B08Pirc, classical, h3 system3748.6%48.6%
B25Sicilian, closed, 6.f43528.6%48.6%
D63QGD, Orthodox defence, Swiss, Karlsbad variation3540.0%48.6%
A35English, symmetrical variation3528.6%48.6%
B13Caro-Kann, Panov-Botvinnik attack7051.4%48.6%
A09Reti accepted3348.5%48.5%
A25English, Sicilian reversed8931.5%48.3%
B89Sicilian, Velimirovic attack14527.6%48.3%
E00Neo-Indian (Seirawan) attack8631.4%48.3%
C54Giuoco Piano2846.4%48.2%
C12French, MacCutcheon, Lasker variation5425.9%48.1%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd52642.3%48.1%
A09Reti, advance variation7343.8%47.9%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O4820.8%47.9%
D91Gruenfeld, 5.Bg519232.3%47.9%
A22English, Bremen, Smyslov system21534.4%47.9%
D49QGD semi-Slav, Meran, Sozin variation7035.7%47.9%
D48QGD semi-Slav, Meran, 8...a621037.6%47.9%
D49QGD semi-Slav, Meran, Blumenfeld variation8838.6%47.7%
B15Caro-Kann, Forgacs variation4334.9%47.7%
C42Petrov, Paulsen attack219.5%47.6%
B83Sicilian, Scheveningen, 6.Be218938.1%47.6%
E25Nimzo-Indian, Saemisch, Keres variation4151.2%47.6%
B15Caro-Kann defence4131.7%47.6%
C26Vienna, Paulsen-Mieses variation4146.3%47.6%
A06Reti, Nimzovich-Larsen attack18433.2%47.6%
A07Reti, King's Indian attack, Yugoslav variation22036.8%47.5%
B56Sicilian, Venice attack2055.0%47.5%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation33640.2%47.5%
D70Neo-Gruenfeld defence1942.1%47.4%
A38English, symmetrical variation7544.0%47.3%
D31QGD, semi-Slav, Abrahams variation1850.0%47.2%
C90Ruy Lopez, closed (with ...d6)35831.3%47.2%
D90Gruenfeld, Three knights variation3429.4%47.1%
C11French defence5127.5%47.1%
D35QGD, exchange variation1735.3%47.1%
D03Torre attack (Tartakower variation)6737.3%47.0%
E46Nimzo-Indian, Reshevsky variation6547.7%46.9%
C00French, Schlechter variation7842.3%46.8%
B20Sicilian, Steinitz variation12445.2%46.8%
E16Queen's Indian, Riumin variation1553.3%46.7%
A34English, symmetrical, Rubinstein system1540.0%46.7%
A71Benoni, classical, 8.Bg51513.3%46.7%
C44Scotch gambit, Dubois-Reti defence4540.0%46.7%
C43Petrov, modern attack, Trifunovic variation1450.0%46.4%
A28English, four knights, Marini variation5444.4%46.3%
A07Reti, King's Indian attack6732.8%46.3%
A57Benko gambit half accepted8030.0%46.3%
C90Ruy Lopez, closed, Pilnik variation15737.6%46.2%
C41Philidor, exchange variation2623.1%46.2%
D59QGD, Tartakower variation2528.0%46.0%
A36English, ultra-symmetrical variation7525.3%46.0%
C69Ruy Lopez, exchange variation, Alapin gambit128.3%45.8%
C44Scotch gambit1241.7%45.8%
B09Pirc, Austrian attack, 6.Bd34740.4%45.7%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)8230.5%45.7%
C50Giuoco Pianissimo, Canal variation4643.5%45.7%
D45QGD semi-Slav, 5...Nd79028.9%45.6%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d51172.7%45.5%
D44QGD semi-Slav, Botvinnik system (anti-Meran)1136.4%45.5%
C50Giuoco Piano, four knights variation1118.2%45.5%
C83Ruy Lopez, open, classical defence2245.5%45.5%
E76King's Indian, Four pawns attack, dynamic line1136.4%45.5%
C96Ruy Lopez, closed, Borisenko defence1136.4%45.5%
B62Sicilian, Richter-Rauzer, Podvebrady variation1070.0%45.0%
D49QGD semi-Slav, Meran, Rellstab attack1050.0%45.0%
B80Sicilian, Scheveningen, fianchetto variation4045.0%45.0%
D31QGD, semi-Slav, Noteboom variation1030.0%45.0%
E92King's Indian, Petrosian system1010.0%45.0%
E31Nimzo-Indian, Leningrad, main line1010.0%45.0%
D00Levitsky attack (Queen's bishop attack)17636.4%44.9%
B97Sicilian, Najdorf, 7...Qb623122.9%44.8%
B58Sicilian, Boleslavsky variation7745.5%44.8%
A19English, Mikenas-Carls, Sicilian variation1936.8%44.7%
E46Nimzo-Indian, 4.e3 O-O922.2%44.4%
B76Sicilian, dragon, Yugoslav attack, 7...O-O2722.2%44.4%
B72Sicilian, dragon, 6.Be3944.4%44.4%
A00Benko's opening, reversed Alekhine944.4%44.4%
B07Pirc, Sveshnikov system2634.6%44.2%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d51741.2%44.1%
E36Nimzo-Indian, classical, Noa variation, 5.a31717.6%44.1%
C65Ruy Lopez, Berlin defence, 4.O-O837.5%43.8%
A95Dutch, stonewall with Nc3812.5%43.8%
C86Ruy Lopez, Worrall attack, solid line862.5%43.8%
E61King's Indian, Smyslov system1637.5%43.8%
D17QGD Slav, Czech defence2437.5%43.8%
D56QGD, Lasker defence, Teichmann variation837.5%43.8%
C89Ruy Lopez, Marshall, main line, 12.d2d42445.8%43.8%
D86Gruenfeld, exchange, Simagin's improved variation837.5%43.8%
C44Scotch, Goering gambit837.5%43.8%
D53QGD, 4.Bg5 Be7837.5%43.8%
D44QGD semi-Slav, anti-Meran, Szabo variation812.5%43.8%
C45Scotch, Schmidt variation11861.9%43.6%
A07Reti, King's Indian attack, Keres variation4744.7%43.6%
A01Nimzovich-Larsen attack2317.4%43.5%
E16Queen's Indian, Capablanca variation1533.3%43.3%
A01Nimzovich-Larsen attack, Indian variation2213.6%43.2%
B02Alekhine's defence, Scandinavian variation70.0%42.9%
A28English, four knights, Nimzovich variation3534.3%42.9%
B26Sicilian, closed, 6.Be34932.7%42.9%
E17Queen's Indian, 5.Bg2 Be7757.1%42.9%
C67Ruy Lopez, open Berlin defence, 5...Be7728.6%42.9%
A36English, symmetrical, Botvinnik system reversed70.0%42.9%
C46Four knights, Gunsberg variation757.1%42.9%
D52QGD, Cambridge Springs defence, Rubinstein variation1457.1%42.9%
E33Nimzo-Indian, classical, 4...Nc6757.1%42.9%
C00French, Labourdonnais variation11432.5%42.5%
B74Sicilian, dragon, classical, 9.Nb32035.0%42.5%
A08Reti, King's Indian attack, French variation1323.1%42.3%
E41Nimzo-Indian, e3, Huebner variation7628.9%42.1%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit1216.7%41.7%
E15Queen's Indian, Rubinstein variation1233.3%41.7%
C36KGA, Abbazia defence, modern variation650.0%41.7%
C44Ponziani counter-gambit650.0%41.7%
C39KGA, Kieseritsky, Rice gambit616.7%41.7%
A16English, Anglo-Gruenfeld, Czech defense650.0%41.7%
D14QGD Slav, exchange, Trifunovic variation1233.3%41.7%
C80Ruy Lopez, open, Friess attack616.7%41.7%
D29QGA, classical, 8...Bb76737.3%41.0%
D49QGD semi-Slav, Meran, Stahlberg variation3941.0%41.0%
B86Sicilian, Sozin attack1145.5%40.9%
E96King's Indian, orthodox, 7...Nbd7, main line1631.3%40.6%
A06Reti, old Indian attack2133.3%40.5%
C13French, Albin-Alekhine-Chatard attack540.0%40.0%
A20English, Nimzovich, Flohr variation1526.7%40.0%
D36QGD, exchange, positional line, 6.Qc21040.0%40.0%
D69QGD, Orthodox defence, classical, 13.de1566.7%40.0%
C42Petrov, Cochrane gambit540.0%40.0%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c64531.1%40.0%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1020.0%40.0%
C17French, Winawer, advance, Russian variation1040.0%40.0%
D00Blackmar gambit580.0%40.0%
C42Petrov, Kaufmann attack1513.3%40.0%
B23Sicilian, closed, Korchnoi variation540.0%40.0%
A28English, Bradley Beach variation933.3%38.9%
A26English, Botvinnik system3125.8%38.7%
D01Richter-Veresov attack4721.3%38.3%
C66Ruy Lopez, Berlin defence, 4.O-O, d61225.0%37.5%
C51Evans gambit, Cordel variation475.0%37.5%
D09QGD, Albin counter-gambit, 5.g3425.0%37.5%
B27Sicilian, Katalimov variation475.0%37.5%
B10Caro-Kann, Goldman (Spielmann) variation425.0%37.5%
A84Dutch, Staunton gambit deferred875.0%37.5%
D33QGD, Tarrasch, Prague variation850.0%37.5%
C02French, advance, Nimzovich system850.0%37.5%
A56Czech Benoni, King's Indian system425.0%37.5%
A03Bird's opening425.0%37.5%
D94Gruenfeld, Makogonov variation875.0%37.5%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation425.0%37.5%
D24QGA, Bogolyubov variation475.0%37.5%
D33QGD, Tarrasch, Schlechter-Rubinstein system425.0%37.5%
A13English, Kurajica defence425.0%37.5%
E20Nimzo-Indian defence825.0%37.5%
C23Bishop's opening, Philidor variation475.0%37.5%
D35QGD, exchange, Saemisch variation1942.1%36.8%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation1118.2%36.4%
A12English, Capablanca's variation1154.5%36.4%
C02French, advance, Steinitz variation6227.4%36.3%
B13Caro-Kann, exchange, Rubinstein variation1428.6%35.7%
C66Ruy Lopez, closed Berlin defence, Bernstein variation714.3%35.7%
A00Amar (Paris) opening1050.0%35.0%
B02Alekhine's defence1010.0%35.0%
D72Neo-Gruenfeld, 5.cd, main line1338.5%34.6%
A64Benoni, fianchetto, 11...Re81618.8%34.4%
C01French, exchange, Svenonius variation633.3%33.3%
B60Sicilian, Richter-Rauzer, Bondarevsky variation30.0%33.3%
C00French, Steinitz attack30.0%33.3%
A17English, Queens Indian, Romanishin variation366.7%33.3%
C49Four knights, symmetrical, Pillsbury variation30.0%33.3%
C24Bishop's opening, Urusov gambit922.2%33.3%
E10Blumenfeld counter-gambit accepted922.2%33.3%
C68Ruy Lopez, exchange, Keres variation666.7%33.3%
B32Sicilian, Nimzovich variation30.0%33.3%
E08Catalan, closed, 7.Qc230.0%33.3%
D22QGA, Haberditz variation366.7%33.3%
C92Ruy Lopez, closed, Keres (9...a5) variation366.7%33.3%
A01Nimzovich-Larsen attack, symmetrical variation30.0%33.3%
D15QGD Slav accepted1540.0%33.3%
E40Nimzo-Indian, 4.e3, Taimanov variation30.0%33.3%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack30.0%33.3%
B72Sicilian, dragon, classical, Amsterdam variation366.7%33.3%
D23Queen's gambit accepted366.7%33.3%
D31QGD, Janowski variation366.7%33.3%
A12English, New York (London) defensive system366.7%33.3%
B95Sicilian, Najdorf, 6...e65326.4%32.1%
C42Petrov, classical attack, close variation837.5%31.3%
E24Nimzo-Indian, Saemisch variation1650.0%31.3%
E29Nimzo-Indian, Saemisch, Capablanca variation837.5%31.3%
B77Sicilian, dragon, Yugoslav attack, 9.Bc4837.5%31.3%
A00Polish (Sokolsky) opening2133.3%31.0%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd560.0%30.0%
B45Sicilian, Taimanov, American attack520.0%30.0%
B02Alekhine's defence, Brooklyn defence520.0%30.0%
A21English, Smyslov defence520.0%30.0%
A76Benoni, classical, 9...Re81020.0%30.0%
C13French, classical560.0%30.0%
E07Catalan, closed, 6...Nbd71225.0%29.2%
B96Sicilian, Najdorf, Polugayevsky variation757.1%28.6%
D44QGD semi-Slav, Ekstrom variation933.3%27.8%
A45Canard opening1030.0%25.0%
D84Gruenfeld, Gruenfeld gambit accepted250.0%25.0%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)250.0%25.0%
C45Scotch, Blumenfeld attack450.0%25.0%
A43Old Benoni, Franco-Benoni defence250.0%25.0%
B80Sicilian, Scheveningen, Vitolins variation250.0%25.0%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
A21English, Keres variation250.0%25.0%
C41Philidor, Hanham, Steiner variation250.0%25.0%
B57Sicilian, Magnus Smith trap450.0%25.0%
A52Budapest, Adler variation850.0%25.0%
C30KGD, 2...Nf6250.0%25.0%
B12Caro-Kann, Edinburgh variation450.0%25.0%
A04Reti, Lisitsin gambit deferred250.0%25.0%
D48QGD semi-Slav, Meran80.0%25.0%
B41Sicilian, Kan, Maroczy bind - Bronstein variation250.0%25.0%
B18Caro-Kann, classical, Maroczy attack250.0%25.0%
D21QGA, Alekhine defense, Borisenko-Furman variation250.0%25.0%
A12English, London defensive system1030.0%25.0%
E27Nimzo-Indian, Saemisch variation250.0%25.0%
B15Caro-Kann, Rasa-Studier gambit450.0%25.0%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation450.0%25.0%
C20KP, Lopez opening250.0%25.0%
C59Two knights defence, Goering variation250.0%25.0%
A25English, closed, Hort variation250.0%25.0%
A00Durkin's attack450.0%25.0%
C45Scotch, Tartakower variation250.0%25.0%
A86Dutch with c4 & g3450.0%25.0%
B00Lemming defence250.0%25.0%
C94Ruy Lopez, closed, Breyer defence250.0%25.0%
C12French, MacCutcheon, advance variation1030.0%25.0%
E10Blumenfeld counter-gambit, Spielmann variation40.0%25.0%
C27Vienna game742.9%21.4%
C54Giuoco Piano, Moeller (Therkatz) attack742.9%21.4%
E26Nimzo-Indian, Saemisch, O'Kelly variation50.0%20.0%
A00Anderssen's opening540.0%20.0%
C51Evans gambit, Morphy attack540.0%20.0%
C82Ruy Lopez, open, Dilworth variation540.0%20.0%
C22Centre game333.3%16.7%
C52Evans gambit, Richardson attack333.3%16.7%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd7333.3%16.7%
C41Philidor, Hanham, Krause variation333.3%16.7%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation333.3%16.7%
C41Philidor, Steinitz variation333.3%16.7%
C68Ruy Lopez, exchange, Alekhine variation333.3%16.7%
D15QGD Slav, Tolush-Geller gambit520.0%10.0%
C33KGA, bishop's gambit, Jaenisch variation616.7%8.3%
A57Benko gambit, Zaitsev system812.5%6.3%
B13Caro-Kann, Panov-Botvinnik, Herzog defence10.0%0.0%
E77King's Indian, Six pawns attack20.0%0.0%
C67Ruy Lopez, open Berlin defence, l'Hermet variation20.0%0.0%
A70Benoni, classical without 9.O-O10.0%0.0%
E60King's Indian, 3.g3, counterthrust variation10.0%0.0%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence10.0%0.0%
A00Amar gambit10.0%0.0%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation10.0%0.0%
C52Evans gambit, Lasker defence20.0%0.0%
D50QGD, Been-Koomen variation10.0%0.0%
B98Sicilian, Najdorf, Goteborg (Argentine) variation10.0%0.0%
C38King's knight's gambit30.0%0.0%
C51Evans gambit declined, Showalter variation10.0%0.0%
C48Four knights, Spielmann variation10.0%0.0%
D21QGA, Ericson variation10.0%0.0%
C38KGA, Hanstein gambit10.0%0.0%
C88Ruy Lopez, closed, 8.c320.0%0.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
C35KGA, Cunningham, Euwe defence10.0%0.0%
A25English, closed, 5.Rb1 Taimanov variation10.0%0.0%
A38English, symmetrical, main line with d350.0%0.0%
A00Anti-Borg (Desprez) opening10.0%0.0%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation10.0%0.0%
C37KGA, Blachly gambit10.0%0.0%
C33KGA, Keres (Mason-Steinitz) gambit10.0%0.0%
C60Ruy Lopez (Spanish opening)20.0%0.0%
A43Hawk (Habichd) defence10.0%0.0%
E24Nimzo-Indian, Saemisch, Botvinnik variation10.0%0.0%
E89King's Indian, Saemisch, orthodox main line10.0%0.0%
D26QGA, classical, Furman variation10.0%0.0%
A65Benoni, 6.e420.0%0.0%
D52QGD, Cambridge Springs defence, 7.cd10.0%0.0%
C45Scotch, Blackburne attack10.0%0.0%
C51Evans gambit, Goering attack10.0%0.0%
C46Three knights, Steinitz, Rosenthal variation10.0%0.0%
C51Evans gambit, normal variation10.0%0.0%
C57Two knights defence, Fegatello attack10.0%0.0%
B09Pirc, Austrian attack, Ljubojevic variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C26Vienna, Mengarini variation20.0%0.0%
C53Giuoco Piano, LaBourdonnais variation10.0%0.0%
C39KGA, Kieseritsky, Berlin defence, 6.Bc410.0%0.0%
A81Dutch defence, Blackburne variation10.0%0.0%
D06QGD, symmetrical (Austrian) defence10.0%0.0%
D89Gruenfeld, exchange, Sokolsky variation30.0%0.0%
A59Benko gambit10.0%0.0%
C33KGA, bishop's gambit, Bogolyubov variation10.0%0.0%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack10.0%0.0%
C51Evans gambit, 5...Be710.0%0.0%
C12French, MacCutcheon, Chigorin variation10.0%0.0%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit20.0%0.0%
A43Old Benoni, Schmid's system20.0%0.0%

Created in 2005-2008 by CCRL team
Last games added on April 11, 2008