CCRL 40/4
Downloads and Statistics
February 17, 2018
Testing summary:
Total: 1'671'765 games
played by 1'982 programs
22445 CPU days (X2 4600+)

White wins: 653'018 (39.1%)
Black wins: 530'657 (31.7%)
Draws: 488'090 (29.2%)
White score: 53.7%

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
C32KGD, Falkbeer, Charousek gambit20.0%100.0%
D34QGD, Tarrasch, Stoltz variation20.0%100.0%
C67Ruy Lopez, Berlin defence, Trifunovic variation30.0%100.0%
C39KGA, Allgaier gambit10.0%100.0%
D67QGD, Orthodox defence, Bd3 line, Capablanca freeing manoevre10.0%100.0%
C41Philidor, Paulsen attack30.0%100.0%
C78Ruy Lopez, Rabinovich variation10.0%100.0%
B00Guatemala defence10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Goteborg system50.0%100.0%
C51Evans gambit, Steinitz variation10.0%100.0%
C44Ponziani counter-gambit, Cordel variation10.0%100.0%
C36KGA, Abbazia defence, Botvinnik variation20.0%100.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%
D08QGD, Albin counter-gambit, Janowski variation10.0%100.0%
C32KGD, Falkbeer, Tarrasch variation10.0%100.0%
B01Scandinavian, Kiel variation520.0%90.0%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation922.2%88.9%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation425.0%87.5%
B00Fred80.0%87.5%
B03Alekhine's defence, four pawns attack, Planinc variation425.0%87.5%
C13French, classical, Frankfurt variation1618.8%84.4%
C42Petrov, classical attack, Tarrasch variation933.3%83.3%
D30QGD, Stonewall variation333.3%83.3%
A40Queen's pawn, Charlick (Englund) gambit60.0%83.3%
C37KGA, Rosentreter gambit333.3%83.3%
C58Two knights defence, Paoli variation1118.2%81.8%
B00Corn stalk defence1136.4%81.8%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation540.0%80.0%
D30QGD, Spielmann variation540.0%80.0%
C83Ruy Lopez, open, Breslau variation50.0%80.0%
B40Sicilian, Pin, Jaffe variation50.0%80.0%
B77Sicilian, dragon, Yugoslav attack, Byrne variation50.0%80.0%
C41Philidor, Lopez counter-gambit1513.3%80.0%
A04Reti, Wade defence540.0%80.0%
C58Two knights defence, Colman variation90.0%77.8%
C31KGD, Falkbeer, Tartakower variation1833.3%77.8%
A70Benoni, classical without 9.O-O922.2%77.8%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%75.0%
C30KGD, classical, Reti variation616.7%75.0%
C58Two knights defence, Blackburne variation450.0%75.0%
C13French, classical, Vistaneckis (Nimzovich) variation40.0%75.0%
A86Dutch, Hort-Antoshin system40.0%75.0%
C14French, classical, Stahlberg variation450.0%75.0%
B01Scandinavian, Anderssen counter-attack250.0%75.0%
D08QGD, Albin counter-gambit, Krenosz variation250.0%75.0%
B06Norwegian defence250.0%75.0%
B20Sicilian, wing gambit, Santasiere variation250.0%75.0%
C52Evans gambit, Alapin-Steinitz variation450.0%75.0%
C37KGA, MacDonnell gambit250.0%75.0%
C53Giuoco Piano, Mestel variation250.0%75.0%
C33KGA, bishop's gambit, McDonnell attack250.0%75.0%
E08Catalan, closed, Zagoryansky variation450.0%75.0%
C33KGA, Lopez-Gianutio counter-gambit, Hein variation250.0%75.0%
C41Philidor, Hanham, Delmar variation850.0%75.0%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C12French, MacCutcheon, Bogolyubov variation616.7%75.0%
C33KGA, bishop's gambit, Anderssen variation616.7%75.0%
C67Ruy Lopez, Berlin defence, Rio de Janeiro variation850.0%75.0%
D00Blackmar-Diemer, Lemberg counter-gambit250.0%75.0%
C64Ruy Lopez, classical defence, Zaitsev variation250.0%75.0%
B03Alekhine's defence, four pawns attack, Tartakower variation250.0%75.0%
D63QGD, Orthodox defence, Capablanca variation40.0%75.0%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation214.8%73.8%
B12Caro-Kann, Edinburgh variation5117.6%73.5%
B09Pirc, Austrian attack, Ljubojevic variation1526.7%73.3%
B01Scandinavian, Richter variation1822.2%72.2%
A00Global opening1618.8%71.9%
B27Sicilian, Stiletto (Althouse) variation1414.3%71.4%
C15French, Winawer, Alekhine gambit70.0%71.4%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd2828.6%71.4%
C64Ruy Lopez, Cordel gambit5226.9%71.2%
B24Sicilian, closed, Smyslov variation1241.7%70.8%
D98Gruenfeld, Russian, Keres variation1225.0%70.8%
A66Benoni, pawn storm variation560.0%70.0%
A16English, Anglo-Gruenfeld defense, Korchnoi variation1533.3%70.0%
C45Scotch, Ghulam Kassim variation560.0%70.0%
C96Ruy Lopez, closed, Rossolimo defence520.0%70.0%
D16QGD Slav accepted, Alapin variation25822.5%69.8%
B40Sicilian, Pin, Koch variation14526.2%69.7%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack2817.9%69.6%
C83Ruy Lopez, open, Malkin variation1330.8%69.2%
C52Evans gambit, compromised defence, Paulsen variation1625.0%68.8%
D41QGD, Semi-Tarrasch, San Sebastian variation8025.0%68.8%
A54Old Indian, Dus-Khotimirsky variation812.5%68.8%
C31KGD, Falkbeer, 4.d31931.6%68.4%
A10English, Jaenisch gambit1921.1%68.4%
C41Philidor, Hanham, Krause variation3030.0%68.3%
B72Sicilian, dragon, classical, Grigoriev variation1145.5%68.2%
E62King's Indian, fianchetto, Simagin variation16528.5%68.2%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit1163.6%68.2%
C41Philidor, Larsen variation7724.7%68.2%
A83Dutch, Staunton gambit, Chigorin variation5832.8%68.1%
C10French, Marshall variation1435.7%67.9%
B12Caro-Kann, advance, Short variation9319.4%67.7%
C43Petrov, modern attack, Bardeleben variation1717.6%67.6%
D51QGD3417.6%67.6%
D45QGD semi-Slav, stonewall defence2619.2%67.3%
B03Alekhine's defence, four pawns attack, Trifunovic variation7022.9%67.1%
A79Benoni, classical, 11.f320020.0%67.0%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1216.7%66.7%
C12French, MacCutcheon, Duras variation366.7%66.7%
C03French, Tarrasch, Haberditz variation1513.3%66.7%
C40Latvian gambit, 3.Bc4633.3%66.7%
C49Four knights, Svenonius variation30.0%66.7%
C65Ruy Lopez, Berlin defence, Mortimer variation1811.1%66.7%
C41Philidor, Hanham, Steiner variation3330.3%66.7%
C33KGA, bishop's gambit, Boren-Svenonius variation30.0%66.7%
C42Petrov, French attack1513.3%66.7%
A16English, Anglo-Gruenfeld, Czech defense12730.7%66.5%
C95Ruy Lopez, closed, Breyer, Gligoric variation7119.7%66.2%
A44Old Benoni defence6225.8%66.1%
B04Alekhine's defence, modern, Schmid variation13729.9%66.1%
D87Gruenfeld, exchange, Seville variation18038.3%65.8%
C70Ruy Lopez, fianchetto defence deferred1947.4%65.8%
B05Alekhine's defence, modern, Panov variation1936.8%65.8%
D18QGD Slav, Dutch, Lasker variation2913.8%65.5%
C29Vienna gambit, Kaufmann variation1338.5%65.4%
C46Three knights, Schlechter variation1338.5%65.4%
D90Gruenfeld, Schlechter variation2623.1%65.4%
D84Gruenfeld, Gruenfeld gambit accepted9127.5%65.4%
A59Benko gambit, 7.e41030.0%65.0%
D22QGA, Alekhine defence, Alatortsev variation1050.0%65.0%
B05Alekhine's defence, modern, Flohr variation39429.9%65.0%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation3727.0%64.9%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation1711.8%64.7%
D48QGD semi-Slav, Meran, Pirc variation3429.4%64.7%
B03Alekhine's defence, four pawns attack, fianchetto variation5135.3%64.7%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation30733.2%64.5%
B79Sicilian, dragon, Yugoslav attack, 12.h414531.0%64.5%
C40Greco defence9017.8%64.4%
B05Alekhine's defence, modern variation, 4...Bg492929.1%64.4%
C30KGD, Mafia defence14325.2%64.3%
B01Scandinavian defence, Lasker variation15027.3%64.3%
A97Dutch, Ilyin-Genevsky, Winter variation18535.7%64.3%
A59Benko gambit, Ne2 variation1428.6%64.3%
D55QGD, Neo-orthodox variation1457.1%64.3%
A81Dutch, Leningrad, Karlsbad variation742.9%64.3%
C64Ruy Lopez, classical defence, Charousek variation2123.8%64.3%
C57Two knights defence, Pincus variation742.9%64.3%
C31KGD, Falkbeer, Morphy gambit742.9%64.3%
B18Caro-Kann, classical, Maroczy attack742.9%64.3%
C41Philidor, Nimzovich, Rellstab variation9832.7%64.3%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)771.4%64.3%
A02Bird's opening, Swiss gambit1414.3%64.3%
D46QGD semi-Slav, Romih variation22928.4%64.0%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc4330.2%64.0%
A59Benko gambit8632.6%64.0%
C98Ruy Lopez, closed, Chigorin, 12...Nc626226.3%63.9%
B00Barnes defence1816.7%63.9%
D35QGD, exchange, chameleon variation1827.8%63.9%
B06Robatsch defence, Gurgenidze variation78524.3%63.9%
A43Old Benoni, Mujannah formation13721.2%63.9%
C40QP counter-gambit (elephant gambit)18817.0%63.8%
C88Ruy Lopez, closed, Balla variation2937.9%63.8%
C40Gunderam defence24122.8%63.7%
C42Petrov, classical attack, Mason variation9538.9%63.7%
C48Four knights, Marshall variation1118.2%63.6%
C80Ruy Lopez, open, Tartakower variation1136.4%63.6%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation11348.7%63.3%
C67Ruy Lopez, Berlin defence, Minckwitz variation5339.6%63.2%
A83Dutch, Staunton gambit, Alekhine variation1931.6%63.2%
A97Dutch, Ilyin-Genevsky variation4630.4%63.0%
B56Sicilian, Venice attack65334.2%63.0%
B03Alekhine's defence, four pawns attack, 7.Be317328.9%63.0%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation2722.2%63.0%
C65Ruy Lopez, Berlin defence, 4.O-O20527.3%62.9%
E33Nimzo-Indian, classical, 4...Nc612824.2%62.9%
B74Sicilian, dragon, classical, Alekhine variation3522.9%62.9%
E67King's Indian, fianchetto with ...Nd719628.6%62.8%
E87King's Indian, Saemisch, orthodox, 7.d548820.1%62.7%
C41Philidor, Hanham, Schlechter variation6726.9%62.7%
C30KGD, classical, 4.c314225.4%62.7%
C57Two knights defence, Wilkes Barre (Traxler) variation7516.0%62.7%
C95Ruy Lopez, closed, Breyer, Simagin variation7944.3%62.7%
B04Alekhine's defence, modern, Keres variation17533.7%62.6%
D67QGD, Orthodox defence, Bd3 line, 11.O-O18331.1%62.6%
E74King's Indian, Averbakh, 6...c525523.1%62.5%
C67Ruy Lopez, open Berlin defence, Showalter variation425.0%62.5%
A02Bird, Hobbs gambit425.0%62.5%
C15French, Winawer, Kondratiyev variation1241.7%62.5%
C78Ruy Lopez, Wing attack2045.0%62.5%
D25QGA, Flohr variation8030.0%62.5%
C40Latvian, Fraser defence128.3%62.5%
C39KGA, Kieseritsky, Neumann defence425.0%62.5%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C53Giuoco Piano, Tarrasch variation425.0%62.5%
C14French, classical, Tarrasch variation850.0%62.5%
C41Philidor, Nimzovich, Klein variation128.3%62.5%
A86Dutch with c4 & g320927.3%62.4%
A59Benko gambit, main line95434.1%62.4%
A55Old Indian, main line118226.9%62.4%
A43Old Benoni, Franco-Benoni defence16825.6%62.2%
C40QP counter-gambit, Maroczy gambit7024.3%62.1%
D86Gruenfeld, exchange, Simagin's lesser variation6230.6%62.1%
D07QGD, Chigorin defence, Janowski variation57924.0%62.1%
A51Budapest, Fajarowicz variation12025.8%62.1%
D31QGD, semi-Slav, Junge variation2920.7%62.1%
C53Giuoco Piano, centre-holding variation2920.7%62.1%
A81Dutch defence, Blackburne variation7932.9%62.0%
E89King's Indian, Saemisch, orthodox main line8026.3%61.9%
A44Semi-Benoni (`blockade variation')110721.0%61.8%
C82Ruy Lopez, open, Italian variation8931.5%61.8%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1752.9%61.8%
D50QGD, Semi-Tarrasch3050.0%61.7%
D99Gruenfeld defence, Smyslov, main line38630.6%61.7%
A42Pterodactyl defence111127.2%61.7%
A96Dutch, classical variation55431.2%61.6%
E21Nimzo-Indian, three knights, Korchnoi variation4334.9%61.6%
B02Alekhine's defence, Brooklyn defence8721.8%61.5%
A56Czech Benoni defence78325.4%61.5%
B04Alekhine's defence, modern variation40722.6%61.4%
C03French, Tarrasch, Guimard variation23122.9%61.3%
C48Four knights, Rubinstein counter-gambit, Henneberger variation4936.7%61.2%
B16Caro-Kann, Bronstein-Larsen variation74224.5%61.2%
C70Ruy Lopez, Graz variation933.3%61.1%
C55Two knights, Max Lange attack, Steinitz variation911.1%61.1%
C82Ruy Lopez, open, Berlin variation1833.3%61.1%
C00Lengfellner system10827.8%61.1%
B21Sicilian, Andreaschek gambit1844.4%61.1%
D08QGD, Albin counter-gambit, Alapin variation2740.7%61.1%
D49QGD semi-Slav, Meran, Rabinovich variation11340.7%61.1%
B39Sicilian, accelerated fianchetto, Breyer variation150633.0%61.0%
A24English, Bremen system with ...g68226.8%61.0%
C96Ruy Lopez, closed, Keres (...Nd7) defence32938.6%60.9%
C40Latvian counter-gambit15125.2%60.9%
C47Four knights, Scotch variation4634.8%60.9%
C41Philidor, Hanham variation8337.3%60.8%
C43Petrov, modern (Steinitz) attack15324.8%60.8%
D44QGD semi-Slav, anti-Meran, Alatortsev system5111.8%60.8%
B58Sicilian, Boleslavsky, Louma variation4231.0%60.7%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation49028.4%60.7%
C80Ruy Lopez, open, 6.d44727.7%60.6%
A92Dutch, stonewall with Nc38527.1%60.6%
E17Queen's Indian, Euwe variation10436.5%60.6%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation34129.0%60.6%
D86Gruenfeld, exchange, Larsen variation1926.3%60.5%
B01Scandinavian, Marshall variation92628.1%60.5%
A98Dutch, Ilyin-Genevsky variation with Qc217226.7%60.5%
E07Catalan, closed, Botvinnik variation15324.2%60.5%
D33QGD, Tarrasch, Wagner variation2429.2%60.4%
A72Benoni, classical without 9.O-O12528.0%60.4%
B82Sicilian, Scheveningen, Tal variation19318.1%60.4%
C17French, Winawer, advance variation9725.8%60.3%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd259827.9%60.3%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation125525.7%60.2%
A93Dutch, stonewall, Botwinnik variation26428.8%60.2%
C92Ruy Lopez, closed, Keres (9...a5) variation4922.4%60.2%
E91King's Indian, 6.Be289225.1%60.2%
C97Ruy Lopez, closed, Chigorin defence173723.0%60.0%
D44QGD semi-Slav, anti-Meran gambit193326.1%60.0%
D94Gruenfeld with e3 Bd33040.0%60.0%
E09Catalan, closed, Sokolsky variation540.0%60.0%
C41Philidor, Philidor counter-gambit, del Rio attack540.0%60.0%
A86Dutch, Leningrad variation20532.2%60.0%
C31KGD, Falkbeer, 3...e4540.0%60.0%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation4045.0%60.0%
D41QGD, Semi-Tarrasch, Kmoch variation3053.3%60.0%
E72King's Indian, Pomar system1553.3%60.0%
C50Rousseau gambit50.0%60.0%
C53Giuoco Piano, LaBourdonnais variation1540.0%60.0%
C25Vienna, Steinitz gambit540.0%60.0%
C88Ruy Lopez, Noah's ark trap50.0%60.0%
C80Ruy Lopez, open, Harksen gambit50.0%60.0%
C49Four knights, symmetrical, Tarrasch variation540.0%60.0%
C44Ponziani, Romanishin variation1060.0%60.0%
A52Budapest, Alekhine, Abonyi variation5028.0%60.0%
E69King's Indian, fianchetto, classical main line125730.3%59.9%
B01Scandinavian (centre counter) defence501727.5%59.9%
A18English, Mikenas-Carls, Flohr variation16731.1%59.9%
A56Czech Benoni, King's Indian system33519.4%59.9%
A65Benoni, 6.e419323.3%59.8%
E76King's Indian, Four pawns attack30531.8%59.8%
B27Sicilian defence11230.4%59.8%
D99Gruenfeld defence, Smyslov, Yugoslav variation5149.0%59.8%
D56QGD, Lasker defence, Teichmann variation14833.1%59.8%
C67Ruy Lopez, Berlin defence, Cordel variation4637.0%59.8%
E10Dzindzikhashvili defence19528.2%59.7%
A16English, Anglo-Gruenfeld, Smyslov defense7739.0%59.7%
E82King's Indian, Saemisch, double fianchetto variation16529.7%59.7%
B15Caro-Kann, Gurgenidze counter-attack3116.1%59.7%
D45QGD semi-Slav, Rubinstein (anti-Meran) system3135.5%59.7%
B01Scandinavian, Pytel-Wade variation291833.9%59.7%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)8337.3%59.6%
A76Benoni, classical, 9...Re813016.2%59.6%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc215632.1%59.6%
C12French, MacCutcheon, Janowski variation17724.3%59.6%
A52Budapest, Adler variation65229.9%59.6%
E02Catalan, open, 5.Qa49438.3%59.6%
D06QGD, Marshall defence35729.4%59.5%
C66Ruy Lopez, closed Berlin defence, Showalter variation6349.2%59.5%
A87Dutch, Leningrad, main variation80928.3%59.5%
A09Reti accepted, Keres variation12121.5%59.5%
B12Caro-Kann, 3.Nd248426.4%59.5%
C19French, Winawer, advance, 6...Ne780525.8%59.5%
A92Dutch defence11632.8%59.5%
C15French, Winawer, fingerslip variation3721.6%59.5%
B00KP, Colorado counter1631.3%59.4%
D51QGD, Capablanca anti-Cambridge Springs variation1631.3%59.4%
B02Alekhine's defence, Spielmann variation1631.3%59.4%
C20KP, King's head opening1631.3%59.4%
B03Alekhine's defence, O'Sullivan gambit166.3%59.4%
B33Sicilian, Pelikan, Bird variation29926.4%59.4%
C82Ruy Lopez, open, St. Petersburg variation27838.1%59.4%
A70Benoni, classical with e4 and Nf3155127.0%59.3%
B76Sicilian, dragon, Yugoslav attack, Rauser variation137526.5%59.3%
D33QGD, Tarrasch, Prague variation13433.6%59.3%
B03Alekhine's defence, Balogh variation4320.9%59.3%
D16QGD Slav, Smyslov variation12927.1%59.3%
E96King's Indian, orthodox, 7...Nbd7, main line21533.0%59.3%
B09Pirc, Austrian attack, 6.e531228.8%59.3%
D34QGD, Tarrasch, Prague variation, 7...Be742031.0%59.3%
D26QGA, classical, Steinitz variation13046.2%59.2%
B06Robatsch defence, Pseudo-Austrian attack96025.5%59.2%
A40Beefeater defence3823.7%59.2%
B27Sicilian, Quinteros variation9818.4%59.2%
C96Ruy Lopez, closed (10...c5)123629.7%59.2%
E16Queen's Indian, Yates variation80131.2%59.2%
A67Benoni, Taimanov variation39319.6%59.2%
A56Benoni defence156726.5%59.2%
A99Dutch, Ilyin-Genevsky variation with b349724.9%59.2%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1315821.2%59.1%
C51Evans gambit, Goering attack1127.3%59.1%
E87King's Indian, Saemisch, orthodox, Bronstein variation1127.3%59.1%
A12English, Bled variation4431.8%59.1%
C22Centre game2227.3%59.1%
C43Petrov, modern attack, Steinitz variation1127.3%59.1%
E29Nimzo-Indian, Saemisch, main line13230.3%59.1%
B03Alekhine's defence, four pawns attack9931.3%59.1%
D55QGD, 6.Nf336032.5%59.0%
B81Sicilian, Scheveningen, Keres attack473825.9%59.0%
C99Ruy Lopez, closed, Chigorin, 12...c5d4207234.2%59.0%
B06Robatsch defence127928.2%59.0%
C23Bishop's opening, Philidor counter-attack10634.9%59.0%
C71Ruy Lopez, modern Steinitz defence, Three knights variation2825.0%58.9%
C92Ruy Lopez, closed, Kholmov variation19726.4%58.9%
B02Alekhine's defence, Saemisch attack25522.7%58.8%
C59Two knights defence, Steinitz variation17625.6%58.8%
C19French, Winawer, advance, poisoned pawn variation511524.3%58.8%
C19French, Winawer, advance, Smyslov variation26325.5%58.7%
D22QGA, Haberditz variation21834.9%58.7%
A61Benoni defence73524.6%58.7%
A52Budapest, Rubinstein variation75336.9%58.7%
A00Anti-Borg (Desprez) opening2321.7%58.7%
D44QGD semi-Slav, anti-Meran, Lilienthal variation48321.3%58.7%
E68King's Indian, fianchetto, classical variation, 8.e4211829.1%58.7%
C43Petrov, modern attack, main line48631.7%58.6%
D16QGD Slav, Steiner variation35928.7%58.6%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation45224.3%58.6%
D05Queen's pawn game, Zukertort variation3531.4%58.6%
A56Benoni defence, Hromodka system110620.9%58.5%
A04Reti, Pirc-Lisitsin gambit15822.2%58.5%
A41Old Indian, Tartakower (Wade) variation330524.5%58.5%
D17QGD Slav, Wiesbaden variation66928.0%58.5%
D33QGD, Tarrasch, Folkestone (Swedish) variation5334.0%58.5%
A53Old Indian, Janowski variation64119.8%58.4%
B08Pirc, classical system, 5.Be2496831.4%58.4%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation14332.9%58.4%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation50130.1%58.4%
B03Alekhine's defence, exchange variation80631.4%58.4%
B20Sicilian, wing gambit, Carlsbad variation2416.7%58.3%
E23Nimzo-Indian, Spielmann, San Remo variation650.0%58.3%
B71Sicilian, dragon, Levenfish; Flohr variation616.7%58.3%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence1861.1%58.3%
C57Two knights defence, Ulvestad variation3622.2%58.3%
C82Ruy Lopez, open, 9.c3616.7%58.3%
C24Bishop's opening, Urusov gambit, Panov variation616.7%58.3%
C57Two knights defence, Fritz variation616.7%58.3%
C30KGD, classical counter-gambit616.7%58.3%
A92Dutch, stonewall variation34827.0%58.3%
C86Ruy Lopez, Worrall attack9627.1%58.3%
A03Bird's opening, Williams gambit1816.7%58.3%
B05Alekhine's defence, modern, Alekhine variation650.0%58.3%
C60Ruy Lopez, Brentano defence616.7%58.3%
D52QGD, Cambridge Springs defence, Yugoslav variation112926.9%58.3%
A92Dutch defence, Alekhine variation12130.6%58.3%
B06Robatsch defence, Two knights, Suttles variation246934.4%58.3%
A42Modern defence, Averbakh system, Kotov variation69825.4%58.2%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation115129.7%58.2%
B09Pirc, Austrian attack76827.9%58.2%
C14French, classical, Alapin variation9238.0%58.2%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)17841.0%58.1%
D32QGD, Tarrasch, von Hennig-Schara gambit8630.2%58.1%
D34QGD, Tarrasch, Prague variation, Normal position118234.2%58.1%
D17QGD Slav, Krause attack83826.3%58.1%
C80Ruy Lopez, open, Bernstein variation96836.3%58.1%
B10Caro-Kann, Hillbilly attack3735.1%58.1%
C26Vienna, Mengarini variation3735.1%58.1%
A50Queen's Indian accelerated34128.7%58.1%
D26QGA, classical variation, 6.O-O42236.5%58.1%
C41Philidor, exchange variation131026.0%58.1%
D51QGD, 5...c68127.2%58.0%
A57Benko gambit half accepted122729.7%58.0%
B01Scandinavian defence159530.3%57.9%
C96Ruy Lopez, closed, Borisenko defence8228.0%57.9%
B06Robatsch defence, Two knights variation59329.8%57.9%
D34QGD, Tarrasch, Prague variation, 9.Bg5115038.3%57.9%
C81Ruy Lopez, open, Howell attack9537.9%57.9%
A06Tennison (Lemberg, Zukertort) gambit1921.1%57.9%
D47QGD semi-Slav, 7.Bc482427.4%57.9%
B09Pirc, Austrian attack, 6.Bd3408230.8%57.9%
E17Queen's Indian, Opovcensky variation132829.9%57.9%
D94Gruenfeld, 5.e375735.1%57.9%
A89Dutch, Leningrad, main variation with Nc6140628.7%57.9%
D41QGD, Semi-Tarrasch, 5.cd98136.2%57.8%
D42QGD, Semi-Tarrasch, 7.Bd364436.2%57.8%
C83Ruy Lopez, open, classical defence18538.9%57.8%
B98Sicilian, Najdorf, Browne variation9632.3%57.8%
C93Ruy Lopez, closed, Smyslov defence25033.2%57.8%
A42Modern defence, Averbakh system96529.7%57.8%
D60QGD, Orthodox defence35430.8%57.8%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack312628.6%57.7%
E32Nimzo-Indian, classical, Adorjan gambit19428.9%57.7%
D22QGA, Alekhine defence38233.8%57.7%
C60Ruy Lopez, Cozio defence40227.4%57.7%
C51Evans gambit, Morphy attack1338.5%57.7%
C48Four knights, Rubinstein counter-gambit, 5.Be21323.1%57.7%
B27Sicilian, Acton extension1323.1%57.7%
D18QGD Slav, Dutch variation89732.0%57.7%
D63QGD, Orthodox defence11125.2%57.7%
D25QGA, Smyslov variation20330.5%57.6%
C19French, Winawer, advance, positional main line285123.4%57.6%
C70Ruy Lopez, Schliemann defence deferred4615.2%57.6%
B18Caro-Kann, classical, Flohr variation9237.0%57.6%
B00KP, Nimzovich defence263824.1%57.6%
C49Four knights, symmetrical, Capablanca variation3342.4%57.6%
E51Nimzo-Indian, 4.e3, Ragozin variation5350.9%57.5%
E65King's Indian, fianchetto, Yugoslav, 7.O-O23930.5%57.5%
D07QGD, Chigorin defence232427.6%57.5%
B15Caro-Kann, Gurgenidze system53328.7%57.5%
C80Ruy Lopez, open, Riga variation4030.0%57.5%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation6028.3%57.5%
D25QGA, 4.e356129.1%57.5%
E92King's Indian, Petrosian system20119.4%57.5%
E91King's Indian, Kazakh variation69729.4%57.5%
B19Caro-Kann, classical, Spassky variation864527.7%57.4%
E92King's Indian, Gligoric-Taimanov system250124.8%57.4%
C18French, Winawer, advance variation76720.2%57.4%
C75Ruy Lopez, modern Steinitz defence30428.0%57.4%
C87Ruy Lopez, closed, Averbach variation39230.1%57.4%
A35English, symmetrical variation38228.3%57.3%
C14French, classical, Steinitz variation94726.3%57.3%
C61Ruy Lopez, Bird's defence37129.4%57.3%
D52QGD, Cambridge Springs defence, 7.cd43332.3%57.3%
C68Ruy Lopez, exchange variation33025.5%57.3%
A63Benoni, fianchetto, 9...Nbd711027.3%57.3%
C13French, Albin-Alekhine-Chatard attack40621.9%57.3%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf644823.9%57.3%
D48QGD semi-Slav, Meran, old main line20033.5%57.3%
E16Queen's Indian, Capablanca variation41432.9%57.2%
A40Polish defence35324.9%57.2%
C17French, Winawer, advance, 5.a376225.2%57.2%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O54833.8%57.2%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3293238.8%57.2%
B27Sicilian, Hungarian variation1036833.7%57.2%
A30English, symmetrical, hedgehog, flexible formation58736.3%57.2%
C48Four knights, Bardeleben variation728.6%57.1%
C12French, MacCutcheon, Bernstein variation219.5%57.1%
C42Petrov, Kaufmann attack30132.6%57.1%
C21Centre game28732.8%57.1%
D53QGD, Lasker variation728.6%57.1%
E79King's Indian, Four pawns attack, main line12644.4%57.1%
D06Queen's Gambit2119.0%57.1%
A61Benoni, Nimzovich (knight's tour) variation70127.5%57.1%
E63King's Indian, fianchetto, Panno variation326628.6%57.1%
B12Caro-Kann defence190022.2%57.1%
C05French, Tarrasch, Botvinnik variation14924.2%57.0%
C42Petrov, classical attack203830.8%57.0%
D45QGD semi-Slav, 5.e3142128.5%57.0%
B60Sicilian, Richter-Rauzer142226.0%57.0%
D50QGD, 4.Bg531329.1%57.0%
E38Nimzo-Indian, classical, 4...c579230.4%57.0%
E94King's Indian, orthodox variation189131.4%57.0%
B07Robatsch defence, Geller's system156329.9%57.0%
B04Alekhine's defence, modern, Larsen variation132132.6%57.0%
D57QGD, Lasker defence, main line5034.0%57.0%
D87Gruenfeld, exchange, Spassky variation69334.1%57.0%
B42Sicilian, Kan, Gipslis variation19329.0%57.0%
E94King's Indian, orthodox, 7...Nbd7260426.8%57.0%
C15French, Winawer, Alekhine (Maroczy) gambit38830.9%57.0%
C63Ruy Lopez, Schliemann defence38827.3%57.0%
B28Sicilian, O'Kelly variation84428.6%56.9%
C45Scotch, Pulling counter-attack2917.2%56.9%
C20KP, Patzer opening2931.0%56.9%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence80527.1%56.9%
A88Dutch, Leningrad, main variation with c6219131.3%56.9%
B42Sicilian, Kan, 5.Bd3444129.0%56.9%
A84Dutch defence, Rubinstein variation66528.3%56.8%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4153830.8%56.8%
C83Ruy Lopez, open, 9...Be7, 10.Re12231.8%56.8%
C05French, Tarrasch, closed variation194424.4%56.8%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d514032.1%56.8%
B41Sicilian, Kan, Maroczy bind - Bronstein variation5928.8%56.8%
E64King's Indian, fianchetto, Yugoslav system19224.0%56.8%
E09Catalan, closed, main line66528.1%56.8%
C30King's gambit18527.0%56.8%
E62King's Indian, fianchetto with ...Nc634124.9%56.7%
E44Nimzo-Indian, Fischer variation, 5.Ne289724.7%56.7%
D10QGD Slav, Winawer counter-gambit30427.3%56.7%
A04Reti v Dutch243326.1%56.7%
C01French, exchange, Svenonius variation6735.8%56.7%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation9741.2%56.7%
B42Sicilian, Kan, Swiss cheese variation29927.8%56.7%
B10Caro-Kann, anti-Caro-Kann defence131626.3%56.7%
E36Nimzo-Indian, classical, Botvinnik variation1533.3%56.7%
C46Three knights, Steinitz, Rosenthal variation1560.0%56.7%
E85King's Indian, Saemisch, orthodox variation6033.3%56.7%
D16QGD Slav, Soultanbeieff variation25639.1%56.6%
B55Sicilian, Prins variation, Venice attack12137.2%56.6%
E17Queen's Indian, old main line, 6.O-O90830.4%56.6%
A21English, Smyslov defence5326.4%56.6%
C41Philidor, Improved Hanham variation128927.2%56.6%
C16French, Winawer, advance variation113224.6%56.6%
E11Bogo-Indian defence, Nimzovich variation270328.6%56.5%
C58Two knights defence, Bogolyubov variation6920.3%56.5%
C41Philidor's defence56029.5%56.5%
D19QGD Slav, Dutch variation268629.1%56.5%
A84Dutch defence172025.9%56.5%
C49Four knights, double Ruy Lopez31541.9%56.5%
B32Sicilian, Flohr variation14628.1%56.5%
C10French, Paulsen variation156827.3%56.5%
A41Modern defence10029.0%56.5%
E39Nimzo-Indian, classical, Pirc variation137632.4%56.5%
D09QGD, Albin counter-gambit, 5.g312429.0%56.5%
B00Owen defence87226.4%56.4%
C20KP, Mengarini's opening7817.9%56.4%
D46QGD semi-Slav, Bogolyubov variation44530.1%56.4%
C17French, Winawer, advance, Bogolyubov variation30528.2%56.4%
C55Two knights defence (Modern bishop's opening)139530.2%56.4%
B08Pirc, classical (two knights) system94428.6%56.4%
C63Ruy Lopez, Schliemann defence, Berger variation69333.6%56.3%
A40Modern defence214224.7%56.3%
C42Petrov, classical attack, Jaenisch variation354335.2%56.3%
B06Robatsch (modern) defence1004729.5%56.3%
B29Sicilian, Nimzovich-Rubinstein variation54729.6%56.3%
E83King's Indian, Saemisch, 6...Nc611117.1%56.3%
A36English, symmetrical, Botvinnik system65227.9%56.3%
C95Ruy Lopez, closed, Breyer, Borisenko variation234730.3%56.3%
E05Catalan, open, classical line50231.3%56.3%
D53QGD, 4.Bg5 Be764635.4%56.3%
D51QGD, Manhattan variation2429.2%56.3%
E21Nimzo-Indian, three knights, Euwe variation837.5%56.3%
D53QGD, 4.Bg5 Be7, 5.e3 O-O3237.5%56.3%
D06QGD, symmetrical (Austrian) defence11228.6%56.3%
C18French, Winawer, classical variation80021.3%56.3%
A18English, Mikenas-Carls variation10424.0%56.3%
C45Scotch, Tartakower variation1637.5%56.3%
A40Queen's pawn, English defence67221.7%56.3%
E18Queen's Indian, old main line, 7.Nc3309033.0%56.2%
C04French, Tarrasch, Guimard main line45125.9%56.2%
C03French, Tarrasch288529.9%56.2%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be724228.1%56.2%
B72Sicilian, dragon, classical attack10530.5%56.2%
D10QGD Slav defence, Alekhine variation41220.6%56.2%
E16Queen's Indian, Riumin variation42132.5%56.2%
D47QGD semi-Slav, neo-Meran (Lundin variation)71431.1%56.2%
A41Queen's Pawn492623.4%56.2%
C74Ruy Lopez, modern Steinitz defence6541.5%56.2%
A81Dutch defence725628.6%56.1%
E94King's Indian, orthodox, Donner variation22926.6%56.1%
D35QGD, exchange variation37832.3%56.1%
A52Budapest defence7423.0%56.1%
E95King's Indian, orthodox, 7...Nbd7, 8.Re197926.8%56.1%
E36Nimzo-Indian, classical, Noa variation, 5.a345532.5%56.0%
B08Pirc, classical, h3 system68730.0%56.0%
D06QGD, Grau (Sahovic) defence140125.1%56.0%
D60QGD, Orthodox defence, Rauzer variation2532.0%56.0%
A95Dutch, stonewall: Chekhover variation5036.0%56.0%
E08Catalan, closed, Spassky gambit2524.0%56.0%
D20QGA, 3.e4399829.1%56.0%
C58Two knights defence22625.2%56.0%
A28English, four knights, Stean variation17624.4%56.0%
A85Dutch with c4 & Nc357033.3%56.0%
A11English, Caro-Kann defensive system149427.8%56.0%
C27Vienna, `Frankenstein-Dracula' variation4226.2%56.0%
A90Dutch defence205826.0%56.0%
B10Caro-Kann, Two knights variation89227.4%55.9%
B36Sicilian, accelerated fianchetto, Maroczy bind143235.6%55.9%
A50Queen's pawn game196128.3%55.9%
D25QGA, Janowsky-Larsen variation71929.2%55.9%
D51QGD, 4.Bg5 Nbd712729.9%55.9%
C09French, Tarrasch, open variation, main line220437.2%55.9%
C91Ruy Lopez, closed, 9.d4382226.9%55.9%
D48QGD semi-Slav, Meran, Reynolds' variation135128.9%55.9%
B02Alekhine's defence, Scandinavian variation39128.4%55.9%
A77Benoni, classical, 9...Re8, 10.Nd240825.0%55.9%
C67Ruy Lopez, open Berlin defence, 5...Be712033.3%55.8%
B13Caro-Kann, exchange, Rubinstein variation21533.5%55.8%
E73King's Indian, Semi-Averbakh system4323.3%55.8%
C92Ruy Lopez, closed, 9.h356126.7%55.8%
B63Sicilian, Richter-Rauzer, Rauzer attack47626.7%55.8%
A05Reti, King's Indian attack223529.6%55.8%
B82Sicilian, Scheveningen, 6.f479729.7%55.8%
C13French, classical, Tartakower variation2626.9%55.8%
E78King's Indian, Four pawns attack, with Be2 and Nf32642.3%55.8%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation78132.7%55.8%
B07Pirc, Ufimtsev-Pytel variation85124.1%55.8%
A30English, symmetrical, hedgehog system776531.9%55.8%
C89Ruy Lopez, Marshall, main line, 12.d2d4120827.6%55.8%
E13Queen's Indian, 4.Nc3, main line36625.7%55.7%
E60King's Indian, 3.g3224031.3%55.7%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit7037.1%55.7%
A62Benoni, fianchetto variation136622.8%55.7%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)409130.0%55.7%
C72Ruy Lopez, modern Steinitz defence, 5.O-O51729.8%55.7%
B15Caro-Kann, Forgacs variation11436.0%55.7%
E72King's Indian with e4 & g34429.5%55.7%
A40Queen's pawn, Franco-Indian (Keres) defence336628.8%55.7%
E93King's Indian, Petrosian system, main line23122.9%55.6%
B07Pirc, Byrne variation44624.7%55.6%
E66King's Indian, fianchetto, Yugoslav Panno46427.2%55.6%
D28QGA, classical, 7.Qe213441.0%55.6%
E71King's Indian, Makagonov system (5.h3)86925.8%55.6%
A43Old Benoni defence260826.0%55.6%
E60King's Indian, 3.Nf3468829.1%55.6%
C41Philidor, Philidor counter-gambit, Zukertort variation1833.3%55.6%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd712639.7%55.6%
C12French, MacCutcheon, Dr. Olland (Dutch) variation3633.3%55.6%
B20Sicilian, Gloria variation922.2%55.6%
D97Gruenfeld, Russian, Levenfish variation1822.2%55.6%
B73Sicilian, dragon, classical, 8.O-O23437.6%55.6%
A47Queen's Indian, Marienbad system, Berg variation922.2%55.6%
A12English, Caro-Kann defensive system27928.0%55.6%
D66QGD, Orthodox defence, Bd3 line37930.3%55.5%
C77Ruy Lopez, four knights (Tarrasch) variation29830.5%55.5%
E11Bogo-Indian defence360932.6%55.5%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6124934.3%55.5%
A40Queen's pawn, Keres defence357727.7%55.5%
E80King's Indian, Saemisch variation51724.8%55.5%
C50Giuoco Pianissimo, Italian four knights variation52729.0%55.5%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)858525.0%55.5%
B00KP, Nimzovich defence, Bogolyubov variation27417.5%55.5%
C66Ruy Lopez, closed Berlin defence, Wolf variation12840.6%55.5%
B40Sicilian, Anderssen variation226831.7%55.5%
D35QGD, exchange, positional line, 5...c6175828.2%55.5%
A53Old Indian defence182329.0%55.5%
D01Richter-Veresov attack, Veresov variation5520.0%55.5%
C13French, Albin-Alekhine-Chatard attack, Breyer variation9228.3%55.4%
A58Benko gambit accepted84731.1%55.4%
A19English, Mikenas-Carls, Sicilian variation25828.7%55.4%
D20Queen's gambit accepted199430.6%55.4%
D81Gruenfeld, Russian variation38834.0%55.4%
A10English, Anglo-Dutch defense135124.9%55.4%
E11Bogo-Indian defence, Gruenfeld variation373830.8%55.4%
D97Gruenfeld, Russian, Prins variation117934.3%55.4%
E11Bogo-Indian defence, Monticelli trap2825.0%55.4%
B49Sicilian, Taimanov variation235531.5%55.4%
D11QGD Slav, 4.e3493929.8%55.3%
D52QGD, Cambridge Springs defence, Rubinstein variation22531.6%55.3%
A18English, Mikenas-Carls, Kevitz variation4717.0%55.3%
D15QGD Slav, Schlechter variation32929.8%55.3%
D31QGD, Janowski variation20737.2%55.3%
D21QGA, 3.Nf3117726.2%55.3%
B09Pirc, Austrian attack, 6.Be376525.6%55.3%
B33Sicilian, Pelikan, Chelyabinsk variation576526.9%55.3%
C06French, Tarrasch, closed variation, main line273232.2%55.3%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)207331.5%55.3%
C23Bishop's opening, Philidor variation1926.3%55.3%
C42Petrov, classical attack, Berger variation1936.8%55.3%
D27QGA, classical, Rubinstein variation397334.2%55.3%
C42Petrov, classical attack, Marshall variation243129.4%55.2%
C29Vienna gambit, Breyer variation13435.8%55.2%
E15Queen's Indian, 4.g3183940.9%55.2%
D52QGD37429.1%55.2%
B02Alekhine's defence58632.3%55.2%
D71Neo-Gruenfeld, 5.cd21239.6%55.2%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack274430.1%55.2%
C40Damiano's defence2927.6%55.2%
B77Sicilian, dragon, Yugoslav attack, 9...Bd746525.6%55.2%
A58Benko gambit, fianchetto variation39829.9%55.2%
A22English, Carls' Bremen system85526.3%55.1%
B12Caro-Kann, Tartakower (fantasy) variation100427.4%55.1%
D28QGA, classical, 7...b527334.1%55.1%
D92Gruenfeld, 5.Bf4110432.9%55.1%
C00St. George defence64626.6%55.1%
C42Petrov, classical attack, close variation20730.0%55.1%
B23Sicilian, chameleon variation122328.0%55.1%
E88King's Indian, Saemisch, orthodox, 7.d5 c651331.0%55.1%
B04Alekhine's defence, modern, fianchetto variation91031.0%55.1%
B18Caro-Kann, classical variation203130.5%55.0%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd386337.5%55.0%
D70Neo-Gruenfeld (Kemeri) defence16940.2%55.0%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc43036.7%55.0%
C21Danish gambit6026.7%55.0%
C52Evans gambit, compromised defence3010.0%55.0%
B40Sicilian, Pin variation (Sicilian counter-attack)12018.3%55.0%
C57Two knights defence, Lolli attack2020.0%55.0%
B15Caro-Kann, Alekhine gambit3050.0%55.0%
A80Dutch, Manhattan (Alapin, Ulvestad) variation12021.7%55.0%
C00French, Reti (Spielmann) variation29027.2%55.0%
B43Sicilian, Kan, 5.Nc3621728.9%55.0%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c654822.3%54.9%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6587733.4%54.9%
A14English, Symmetrical, Keres defence89436.2%54.9%
E67King's Indian, fianchetto, classical variation98631.5%54.9%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)3186729.4%54.9%
D32QGD, Tarrasch defence43831.7%54.9%
D02Queen's pawn game, Chigorin variation172424.8%54.9%
A08Reti, King's Indian attack119530.6%54.9%
D31QGD, 3.Nc395128.4%54.9%
C73Ruy Lopez, modern Steinitz defence, Alapin variation30725.7%54.9%
B57Sicilian, Sozin, not Scheveningen56330.2%54.9%
C67Ruy Lopez, Berlin defence, Rosenthal variation4141.5%54.9%
C54Giuoco Piano15426.6%54.9%
E43Nimzo-Indian, Fischer variation63730.0%54.9%
C02French, advance, Wade variation39227.6%54.8%
C41Philidor, Nimzovich variation3138.7%54.8%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation38328.7%54.8%
B27Sicilian, Katalimov variation17624.4%54.8%
E19Queen's Indian, old main line, 9.Qxc3170333.1%54.8%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation26026.5%54.8%
B60Sicilian, Richter-Rauzer, Larsen variation35424.9%54.8%
B07Pirc defence283326.1%54.8%
A54Old Indian, Ukrainian variation, 4.Nf331426.8%54.8%
C12French, MacCutcheon, Lasker variation, 8...g675424.7%54.8%
B57Sicilian, Magnus Smith trap4228.6%54.8%
B13Caro-Kann, Panov-Botvinnik, Herzog defence2123.8%54.8%
C78Ruy Lopez, 5.O-O267631.5%54.7%
D31QGD, semi-Slav, Marshall gambit277028.9%54.7%
D26QGA, classical variation132234.4%54.7%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)675929.1%54.7%
D41QGD, Semi-Tarrasch with e335036.3%54.7%
B41Sicilian, Kan variation27629.0%54.7%
D63QGD, Orthodox defence, 7.Rc134034.1%54.7%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation69131.3%54.7%
A39English, symmetrical, main line with d4122337.3%54.7%
D29QGA, classical, Smyslov variation9628.1%54.7%
C47Four knights, Scotch, Krause variation19233.3%54.7%
C58Two knights defence, Kieseritsky variation3228.1%54.7%
D08QGD, Albin counter-gambit22536.4%54.7%
E62King's Indian, fianchetto variation15029.3%54.7%
C16French, Winawer, Petrosian variation38623.8%54.7%
B46Sicilian, Taimanov variation566328.7%54.7%
E40Nimzo-Indian, 4.e322626.1%54.6%
E70King's Indian, 4.e485425.6%54.6%
A57Benko gambit118124.7%54.6%
A17English, Queens Indian formation22825.9%54.6%
A17English, Nimzo-English opening255431.1%54.6%
D86Gruenfeld, exchange, classical variation133331.9%54.6%
C45Scotch, Horwitz attack3336.4%54.5%
B85Sicilian, Scheveningen, classical, Maroczy system6633.3%54.5%
C77Ruy Lopez, Morphy defence40732.9%54.5%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation4436.4%54.5%
C45Scotch, Blackburne attack2254.5%54.5%
A82Dutch, Balogh defence1118.2%54.5%
B06Robatsch defence, three pawns attack9916.2%54.5%
D94Gruenfeld, Flohr defence6624.2%54.5%
C00French defence385624.0%54.5%
A45Blackmar-Diemer gambit16627.1%54.5%
D12QGD Slav, 4.e3 Bf5839928.2%54.5%
C11French, Steinitz, Boleslavsky variation699026.4%54.5%
A31English, symmetrical, Benoni formation226128.3%54.5%
B41Sicilian, Kan, Maroczy bind (Reti variation)85128.8%54.5%
B99Sicilian, Najdorf, 7...Be7 main line160322.0%54.5%
A13English, Romanishin gambit76430.6%54.5%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O108024.1%54.4%
E10Queen's pawn game671931.6%54.4%
E90King's Indian, 5.Nf3120823.6%54.4%
E56Nimzo-Indian, 4.e3, main line with 7...Nc6126530.1%54.4%
B56Sicilian522326.3%54.4%
C42Petrov, classical attack, Chigorin variation106334.1%54.4%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f462332.7%54.4%
A02Bird, From gambit, Lasker variation3414.7%54.4%
A21English, Troeger defence17027.6%54.4%
A20English, Nimzovich variation29526.8%54.4%
B45Sicilian, Taimanov variation464227.3%54.4%
B47Sicilian, Taimanov (Bastrikov) variation1107630.8%54.4%
E10Blumenfeld counter-gambit12527.2%54.4%
D52QGD, Cambridge Springs defence, Bogoljubow variation69429.8%54.4%
B32Sicilian, Labourdonnais-Loewenthal variation34227.5%54.4%
B54Sicilian108926.8%54.4%
D68QGD, Orthodox defence, classical variation13836.2%54.3%
A41Robatsch defence, Rossolimo variation18427.2%54.3%
A95Dutch, stonewall with Nc347226.5%54.3%
D23QGA, Mannheim variation51932.4%54.3%
E20Nimzo-Indian, Kmoch variation107425.0%54.3%
D10QGD Slav defence517530.0%54.3%
C62Ruy Lopez, old Steinitz defence63728.3%54.3%
B42Sicilian, Kan, Polugaievsky variation289626.9%54.3%
C42Petrov, Nimzovich attack72433.4%54.3%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation120533.2%54.3%
C10French, Fort Knox variation46934.3%54.3%
A71Benoni, classical, 8.Bg512926.4%54.3%
D86Gruenfeld, exchange, Simagin's improved variation12932.6%54.3%
C14French, classical, Rubinstein variation4719.1%54.3%
B53Sicilian, Chekhover, Zaitsev variation4719.1%54.3%
C10French, Frere (Becker) variation4723.4%54.3%
D24QGA, 4.Nc332931.9%54.3%
E59Nimzo-Indian, 4.e3, main line208030.7%54.3%
A13English, Neo-Catalan accepted230533.5%54.3%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc340042.5%54.3%
E62King's Indian, fianchetto, Larsen system31829.2%54.2%
C50King's pawn game38923.1%54.2%
C78Ruy Lopez, Archangelsk (counterthrust) variation356129.3%54.2%
D11QGD Slav, 3.Nf3509428.7%54.2%
A49King's Indian, fianchetto without c4218928.2%54.2%
E08Catalan, closed, 7.Qc223931.4%54.2%
E61King's Indian defence, 3.Nc3134328.1%54.2%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2433.3%54.2%
E37Nimzo-Indian, classical, San Remo variation1241.7%54.2%
D34QGD, Tarrasch, Reti variation6038.3%54.2%
C30KGD, classical, Soldatenkov variation1225.0%54.2%
B44Sicilian, Szen variation, Dely-Kasparov gambit2441.7%54.2%
A21English opening334827.3%54.2%
C12French, MacCutcheon, advance variation1241.7%54.2%
B85Sicilian, Scheveningen, classical main line70940.1%54.2%
E00Catalan opening656830.9%54.1%
A28English, four knights, Marini variation142931.7%54.1%
B48Sicilian, Taimanov variation709328.0%54.1%
E06Catalan, closed, 5.Nf3650034.6%54.1%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation174429.5%54.1%
E81King's Indian, Saemisch, 5...O-O233325.5%54.1%
A16English opening120027.7%54.1%
B14Caro-Kann, Panov-Botvinnik attack, 5...g646738.8%54.1%
E83King's Indian, Saemisch, Panno formation20922.0%54.1%
A80Dutch799326.5%54.1%
C60Ruy Lopez, Cozio defence, Paulsen variation3737.8%54.1%
B12Caro-Kann, advance variation2197224.8%54.0%
E17Queen's Indian, anti-Queen's Indian system28533.7%54.0%
B22Sicilian, Alapin's variation (2.c3)1727531.9%54.0%
E00Queen's pawn game147827.7%54.0%
C13French, classical2512.0%54.0%
A15English opening1282933.2%54.0%
B20Sicilian, Steinitz variation124025.4%54.0%
D96Gruenfeld, Russian variation51530.3%54.0%
D98Gruenfeld, Russian, Smyslov variation59327.7%54.0%
D31QGD, semi-Slav131431.2%54.0%
A46Queen's pawn game616027.6%54.0%
D78Neo-Gruenfeld, 6.O-O c6178332.7%53.9%
C06French, Tarrasch, Leningrad variation5117.6%53.9%
C43Petrov, modern attack, Symmetrical variation464131.3%53.9%
C65Ruy Lopez, Berlin defence, Nyholm attack9034.4%53.9%
A30English, symmetrical variation863029.2%53.9%
C48Four knights, Rubinstein counter-gambit152126.4%53.9%
A07Reti, King's Indian attack, Yugoslav variation489931.3%53.9%
D17QGD Slav, Czech defence90535.2%53.9%
C11French, Steinitz variation181526.9%53.9%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)356732.5%53.9%
B00Carr's defence6524.6%53.8%
A58Benko gambit, Nd2 variation1330.8%53.8%
C42Petrov, Damiano variation3930.8%53.8%
C42Petrov's defence93624.8%53.8%
C02French, advance variation206325.2%53.8%
B17Caro-Kann, Steinitz variation539929.1%53.8%
D90Gruenfeld, Three knights variation70834.2%53.8%
B59Sicilian, Boleslavsky variation, 7.Nb315839.2%53.8%
B74Sicilian, dragon, classical, Spielmann variation6628.8%53.8%
E99King's Indian, orthodox, Aronin-Taimanov, main line13222.7%53.8%
C42Petrov three knights game52928.5%53.8%
B03Alekhine's defence78123.8%53.8%
B80Sicilian, Scheveningen variation143123.8%53.8%
C11French, Steinitz, Gledhill attack5339.6%53.8%
B62Sicilian, Richter-Rauzer, Keres variation55730.7%53.8%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc218935.6%53.8%
C69Ruy Lopez, exchange, Gligoric variation61135.2%53.8%
B00St. George (Baker) defence18721.9%53.7%
D89Gruenfeld, Spassky variation, main line, 13.Bd310732.7%53.7%
C44Ponziani opening17425.9%53.7%
A00Durkin's attack6717.9%53.7%
A60Benoni defence22826.8%53.7%
B00King's pawn opening295926.0%53.7%
C36KGA, Abbazia defence (classical defence, modern defence[!])2718.5%53.7%
B36Sicilian, accelerated fianchetto, Gurgenidze variation36638.5%53.7%
D38QGD, Ragozin variation769632.4%53.7%
A61Benoni, fianchetto variation6825.0%53.7%
B10Caro-Kann defence563225.0%53.7%
C26Vienna game35427.1%53.7%
E10Blumenfeld counter-gambit accepted20523.4%53.7%
D55QGD, Neo-orthodox variation, 7.Bh453431.6%53.7%
E10Blumenfeld counter-gambit, Spielmann variation9619.8%53.6%
B77Sicilian, dragon, Yugoslav attack, 9.Bc49630.2%53.6%
C22Centre game, Berger variation39825.9%53.6%
E01Catalan, closed52330.4%53.6%
E25Nimzo-Indian, Saemisch variation12436.3%53.6%
A01Nimzovich-Larsen attack, Indian variation77226.7%53.6%
C69Ruy Lopez, exchange variation, 5.O-O74529.7%53.6%
B35Sicilian, accelerated fianchetto, modern variation with Bc4466534.3%53.6%
A40Queen's pawn557725.9%53.6%
A09Reti opening103927.3%53.6%
D27QGA, classical, 6...a6507736.1%53.6%
E90King's Indian, Larsen variation11129.7%53.6%
D85Gruenfeld, modern exchange variation764836.8%53.6%
D82Gruenfeld, 4.Bf457032.8%53.6%
D77Neo-Gruenfeld, 6.O-O182333.8%53.6%
D46QGD semi-Slav, Chigorin defence85232.7%53.6%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation117523.7%53.6%
B32Sicilian, Nimzovich variation2814.3%53.6%
C45Scotch, Meitner variation4235.7%53.6%
E15Queen's Indian, Buerger variation2821.4%53.6%
D54QGD, Anti-neo-orthodox variation4231.0%53.6%
D61QGD, Orthodox defence, Rubinstein variation53230.5%53.6%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation1450.0%53.6%
B01Scandinavian defence, Gruenfeld variation1435.7%53.6%
C50Hungarian defence12635.7%53.6%
C41Philidor, Steinitz variation1421.4%53.6%
D21QGA, Ericson variation2842.9%53.6%
D51QGD, Alekhine variation1421.4%53.6%
D37QGD, classical variation (5.Bf4)796233.0%53.6%
B09Pirc, Austrian attack, dragon formation118231.5%53.6%
C02French, advance, Paulsen attack219424.4%53.5%
D15QGD Slav, Suechting variation8520.0%53.5%
C65Ruy Lopez, Berlin defence, Beverwijk variation56729.5%53.5%
C10French, Rubinstein variation785932.9%53.5%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation297134.7%53.5%
E92King's Indian, Andersson variation45539.8%53.5%
B13Caro-Kann, Panov-Botvinnik attack186332.5%53.5%
A50Kevitz-Trajkovich defence114327.6%53.5%
A78Benoni, classical with ...Re8 and ...Na68634.9%53.5%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)352832.7%53.5%
A10English opening489225.5%53.5%
A13English, Neo-Catalan178330.3%53.5%
A47Queen's Indian defence96528.0%53.5%
A06Reti opening329727.0%53.5%
D31QGD, Charousek (Petrosian) variation188528.5%53.4%
B18Caro-Kann, classical, 6.h4236730.9%53.4%
D43QGD semi-Slav2008529.2%53.4%
C25Vienna gambit7327.4%53.4%
A48King's Indian, East Indian defence165829.1%53.4%
E70King's Indian, Kramer system23521.7%53.4%
D04Queen's pawn game226230.7%53.4%
D80Gruenfeld defence82641.4%53.4%
E12Queen's Indian, Petrosian system1135131.9%53.4%
E04Catalan, open, 5.Nf31097532.5%53.4%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)161331.0%53.4%
D13QGD Slav, exchange variation138532.3%53.4%
B95Sicilian, Najdorf, 6...e6147627.2%53.4%
A80Dutch, 2.Bg5 variation240823.1%53.3%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation58426.9%53.3%
A74Benoni, classical, 9...a6, 10.a43033.3%53.3%
C20KP, Napoleon's opening1540.0%53.3%
C01French, exchange variation225632.5%53.3%
C66Ruy Lopez, Berlin defence, 4.O-O, d610640.6%53.3%
E92King's Indian, Petrosian system, Stein variation121227.2%53.3%
A94Dutch, stonewall with Ba318236.3%53.3%
B11Caro-Kann, Two knights, 3...Bg4155125.3%53.3%
C88Ruy Lopez, Trajkovic counter-attack28927.0%53.3%
C94Ruy Lopez, closed, Breyer defence12237.7%53.3%
C45Scotch game357531.8%53.3%
D35QGD, exchange, Saemisch variation30729.0%53.3%
E60King's Indian defence162823.6%53.3%
D30Queen's gambit declined662531.0%53.3%
D37QGD, 4.Nf3649132.3%53.3%
A22English, Bremen, reverse dragon164634.7%53.3%
C44Scotch, Lolli variation7718.2%53.2%
B23Sicilian, closed, 2...Nc6347127.7%53.2%
A75Benoni, classical with ...a6 and 10...Bg415529.0%53.2%
C46Three knights, Steinitz variation15518.7%53.2%
A05Reti, King's Indian attack, Spassky's variation80729.9%53.2%
A25English, closed system137528.3%53.2%
E28Nimzo-Indian, Saemisch variation9431.9%53.2%
B07Pirc, Holmov system4729.8%53.2%
A34English, symmetrical, Rubinstein system36132.7%53.2%
C60Ruy Lopez (Spanish opening)15822.8%53.2%
D60QGD, Orthodox defence, Botvinnik variation23736.3%53.2%
B20Sicilian, Keres variation (2.Ne2)115525.8%53.2%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)9515.8%53.2%
D05Queen's pawn game204528.9%53.2%
D79Neo-Gruenfeld, 6.O-O, main line87336.7%53.2%
C69Ruy Lopez, exchange variation, Alapin gambit15932.1%53.1%
C15French, Winawer (Nimzovich) variation133632.0%53.1%
B15Caro-Kann, Tartakower (Nimzovich) variation125832.2%53.1%
B98Sicilian, Najdorf, 7...Be727125.1%53.1%
E32Nimzo-Indian, classical variation879932.4%53.1%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1631.3%53.1%
E60King's Indian, Danube gambit1631.3%53.1%
C44Ponziani, Reti variation166.3%53.1%
A82Dutch, Staunton gambit, Tartakower variation1618.8%53.1%
E77King's Indian, Four pawns attack24132.4%53.1%
A09Reti accepted128927.5%53.1%
A07Reti, King's Indian attack (Barcza system)1022029.8%53.1%
C02French, advance, Milner-Barry gambit12925.6%53.1%
C66Ruy Lopez, Berlin defence, hedgehog variation16238.3%53.1%
B94Sicilian, Najdorf, 6.Bg5165325.3%53.1%
D12QGD Slav, exchange variation43824.9%53.1%
D40QGD, Semi-Tarrasch defence, Pillsbury variation4940.8%53.1%
D47QGD semi-Slav, Meran variation315231.4%53.0%
B07Pirc, 150 attack59429.6%53.0%
B85Sicilian, Scheveningen, classical24839.1%53.0%
A73Benoni, classical, 9.O-O26524.5%53.0%
D35QGD, exchange, positional line250127.6%53.0%
D26QGA, 4...e684532.2%53.0%
D11QGD Slav, Breyer variation26829.1%53.0%
A04Reti opening1537528.0%53.0%
C70Ruy Lopez, Cozio defence deferred15134.4%53.0%
D73Neo-Gruenfeld, 5.Nf3123440.1%53.0%
C21Danish gambit, Soerensen defence3429.4%52.9%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation3441.2%52.9%
C57Two knights defence, Fritz, Gruber variation1735.3%52.9%
A64Benoni, fianchetto, 11...Re818726.7%52.9%
C80Ruy Lopez, open, 8.de1723.5%52.9%
A27English, three knights system49427.3%52.9%
D94Gruenfeld, Smyslov defence25735.8%52.9%
A28English, four knights, Capablanca variation49729.4%52.9%
A35English, symmetrical, four knights system408330.2%52.9%
A13English opening483125.6%52.9%
D93Gruenfeld with Bf4 e368838.1%52.9%
A38English, symmetrical variation74229.2%52.9%
C08French, Tarrasch, open, 4.ed ed331536.7%52.9%
D47QGD semi-Slav, Meran, Wade variation2128129.3%52.9%
B44Sicilian defence43229.4%52.9%
C96Ruy Lopez, closed (8...Na5)5225.0%52.9%
B84Sicilian, Scheveningen, classical, Nd7 system8725.3%52.9%
B23Sicilian, closed588326.9%52.9%
D02Queen's pawn game1426727.7%52.9%
A80Dutch, Korchnoi attack10531.4%52.9%
A17English opening36831.3%52.9%
C07French, Tarrasch, open variation638332.5%52.8%
B90Sicilian, Najdorf, Adams attack268223.8%52.8%
E12Queen's Indian, Miles variation143131.6%52.8%
C23Bishop's opening39024.1%52.8%
C44Ponziani, Steinitz variation10740.2%52.8%
A37English, symmetrical variation96329.2%52.8%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence50035.2%52.8%
B33Sicilian, Sveshnikov variation314726.5%52.8%
C48Four knights, Spanish, classical defence16226.5%52.8%
A00Mieses opening50518.4%52.8%
B23Sicilian, Grand Prix attack58326.2%52.7%
A07Reti, King's Indian attack329833.7%52.7%
C74Ruy Lopez, Siesta, Kopayev variation12827.3%52.7%
D15QGD Slav, 4.Nc3398128.7%52.7%
B33Sicilian defence101329.2%52.7%
C67Ruy Lopez, Berlin defence, open variation804434.4%52.7%
B50Sicilian526227.8%52.7%
C32KGD, Falkbeer, 5.de3729.7%52.7%
A91Dutch defence20432.8%52.7%
A33English, symmetrical, Geller variation297430.7%52.7%
A05Reti opening966628.7%52.7%
D55QGD, Petrosian variation46638.8%52.7%
C49Four knights, Nimzovich (Paulsen) variation7544.0%52.7%
A14English, Neo-Catalan declined112536.0%52.7%
D85Gruenfeld, exchange variation290935.9%52.7%
C41Philidor, Boden variation1910.5%52.6%
C70Ruy Lopez7628.9%52.6%
E15Queen's Indian, 4.g3 Bb724730.8%52.6%
E12Queen's Indian, 4.Nc3686229.2%52.6%
C46Three knights game26725.1%52.6%
B83Sicilian, modern Scheveningen, main line70835.7%52.6%
D30QGD Slav102331.3%52.6%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg732934.7%52.6%
B54Sicilian, Prins (Moscow) variation46630.9%52.6%
C53Giuoco Piano475727.8%52.6%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation19532.3%52.6%
D58QGD, Tartakower (Makagonov-Bondarevsky) system1284532.6%52.5%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7719525.1%52.5%
A21English, Kramnik-Shirov counterattack365328.6%52.5%
B92Sicilian, Najdorf, Opovcensky variation1123429.8%52.5%
C44Scotch gambit, Benima defence6028.3%52.5%
C10French, Rubinstein, Capablanca line2035.0%52.5%
B40Sicilian defence877528.9%52.5%
A06Reti, old Indian attack32324.5%52.5%
A15English, 1...Nf6 (Anglo-Indian defense)163926.6%52.5%
D70Neo-Gruenfeld defence40623.6%52.5%
C49Four knights, symmetrical, Metger unpin49035.1%52.4%
D30QGD, Capablanca-Duras variation81828.4%52.4%
A34English, symmetrical, three knights system241634.9%52.4%
E46Nimzo-Indian, Reshevsky variation146228.1%52.4%
A32English, symmetrical variation84728.6%52.4%
D67QGD, Orthodox defence, Bd3 line6243.5%52.4%
E07Catalan, closed, 6...Nbd718629.6%52.4%
D30QGD, Vienna variation109639.9%52.4%
D17QGD Slav, Carlsbad variation68532.7%52.4%
D05Colle system80430.6%52.4%
D45QGD semi-Slav, Stoltz variation3862930.5%52.4%
C82Ruy Lopez, open, Motzko attack8538.8%52.4%
C30KGD, 2...Nf66426.6%52.3%
C24Bishop's opening, Berlin defence141127.7%52.3%
C64Ruy Lopez, classical defence, 4.c345028.2%52.3%
C90Ruy Lopez, closed, Pilnik variation308926.1%52.3%
D63QGD, Orthodox defence, Swiss, Karlsbad variation30129.6%52.3%
E73King's Indian, Averbakh system88329.0%52.3%
D72Neo-Gruenfeld, 5.cd, main line34532.2%52.3%
E34Nimzo-Indian, classical, Noa variation82433.7%52.3%
E52Nimzo-Indian, 4.e3, main line with ...b683132.6%52.3%
A28English, four knights system63525.2%52.3%
C82Ruy Lopez, open, Dilworth variation8827.3%52.3%
E22Nimzo-Indian, Spielmann variation13233.3%52.3%
C53Giuoco Piano, Anderssen variation2250.0%52.3%
B96Sicilian, Najdorf, Polugayevsky variation13324.8%52.3%
C25Vienna game75425.5%52.3%
C44Ponziani counter-gambit20020.5%52.3%
D49QGD semi-Slav, Meran, Stahlberg variation8932.6%52.2%
C49Four knights, symmetrical, Maroczy system8939.3%52.2%
A13English opening, Agincourt variation285427.9%52.2%
C33KGA, bishop's gambit13416.4%52.2%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7212427.8%52.2%
A28English, four knights, Nimzovich variation141330.3%52.2%
D19QGD Slav, Dutch variation, main line49434.4%52.2%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation4520.0%52.2%
B30Sicilian defence432829.1%52.2%
B74Sicilian, dragon, classical, Reti-Tartakower variation20334.5%52.2%
A16English, Anglo-Gruenfeld defense31730.0%52.2%
A20English opening1099628.5%52.2%
D31QGD, semi-Slav, Noteboom variation72628.7%52.2%
E14Queen's Indian, 4.e3279629.9%52.2%
B07Pirc, Sveshnikov system105027.3%52.1%
A33English, symmetrical variation425535.3%52.1%
C02French, advance, Euwe variation321225.1%52.1%
C50Giuoco Pianissimo194730.2%52.1%
E84King's Indian, Saemisch, Panno main line84821.9%52.1%
B75Sicilian, dragon, Yugoslav attack40229.1%52.1%
C80Ruy Lopez, open, 7.Bb349730.6%52.1%
C78Ruy Lopez, Moeller defence78629.9%52.1%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd33440.7%52.1%
A00Dunst (Sleipner, Heinrichsen) opening191523.3%52.1%
D56QGD, Lasker defence52730.2%52.1%
A43Old Benoni, Schmid's system2429.2%52.1%
C20King's pawn game29120.3%52.1%
A00Polish, Tuebingen variation7321.9%52.1%
C12French, MacCutcheon, Lasker variation46419.6%52.0%
B07Pirc, bayonet (Mariotti) attack4918.4%52.0%
E27Nimzo-Indian, Saemisch variation4930.6%52.0%
E90King's Indian, Zinnowitz variation9830.6%52.0%
C11French, Burn variation933430.9%52.0%
A00Van't Kruijs opening129426.6%52.0%
C70Ruy Lopez, Classical defence deferred52326.4%52.0%
C33KGA, bishop's gambit, Maurian defence2524.0%52.0%
C00French, Steinitz attack5036.0%52.0%
A07Reti, King's Indian attack, Keres variation75230.9%52.0%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)35432.8%52.0%
A07Reti, King's Indian attack, Pachman system25323.3%52.0%
E15Queen's Indian, Rubinstein variation12822.7%52.0%
A46Queen's pawn, Torre attack136826.5%51.9%
A01Nimzovich-Larsen attack, Polish variation2634.6%51.9%
C90Ruy Lopez, closed, Lutikov variation2650.0%51.9%
C29Vienna gambit, Paulsen attack2626.9%51.9%
E08Catalan, closed, Qc2 & b342028.1%51.9%
B19Caro-Kann, classical, 7...Nd791924.8%51.9%
C84Ruy Lopez, closed defence120332.1%51.9%
D00Queen's pawn, Chigorin variation150722.2%51.9%
A51Budapest defence declined5422.2%51.9%
E40Nimzo-Indian, 4.e3, Taimanov variation10824.1%51.9%
D30QGD264732.4%51.9%
D10QGD Slav defence, exchange variation273230.6%51.8%
B32Sicilian defence108228.5%51.8%
B84Sicilian, Scheveningen (Paulsen), classical variation927929.0%51.8%
A25English, closed, 5.Rb168128.5%51.8%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d568131.4%51.8%
D00Queen's pawn, Mason variation199924.9%51.8%
C88Ruy Lopez, closed, anti-Marshall 8.a4159128.8%51.8%
A12English, Torre defensive system38534.5%51.8%
B10Caro-Kann, anti-anti-Caro-Kann defence223434.2%51.8%
E53Nimzo-Indian, 4.e3, main line with ...c5160537.2%51.8%
D40QGD, Semi-Tarrasch defence100233.3%51.8%
C48Four knights, Spanish variation33527.2%51.8%
C50Giuoco Piano, four knights variation14027.9%51.8%
A48King's Indian, London system109328.9%51.8%
B00Reversed Grob (Borg/Basman defence/macho Grob)16917.2%51.8%
C91Ruy Lopez, closed, Bogolyubov variation623932.0%51.8%
C70Ruy Lopez, Caro variation8530.6%51.8%
A03Bird's opening, Lasker variation5733.3%51.8%
D02Queen's pawn game, Krause variation82933.5%51.7%
A25English, Sicilian reversed109126.7%51.7%
B58Sicilian, classical74835.3%51.7%
C64Ruy Lopez, classical (Cordel) defence69131.7%51.7%
A45Trompovsky attack (Ruth, Opovcensky opening)733525.0%51.7%
C71Ruy Lopez, modern Steinitz defence14529.0%51.7%
E21Nimzo-Indian, three knights variation339729.1%51.7%
C88Ruy Lopez, closed, 7...O-O791829.8%51.7%
A10English, Adorjan defence53936.5%51.7%
A13English, Kurajica defence12025.0%51.7%
C41Philidor, Philidor counter-gambit3016.7%51.7%
D49QGD semi-Slav, Meran, Blumenfeld variation54529.5%51.7%
B80Sicilian, Scheveningen, fianchetto variation53128.2%51.6%
D00Blackmar-Diemer gambit3215.6%51.6%
C52Evans gambit, Tartakower attack9821.4%51.5%
A28English, four knights, 4.e3141428.1%51.5%
C12French, MacCutcheon variation30330.4%51.5%
B90Sicilian, Najdorf, Byrne (English) attack4938024.8%51.5%
B62Sicilian, Richter-Rauzer, Podvebrady variation3426.5%51.5%
C73Ruy Lopez, modern Steinitz defence, Richter variation23831.5%51.5%
D45QGD semi-Slav, 5...Nd7130526.6%51.5%
D36QGD, exchange, positional line, 6.Qc241332.7%51.5%
D97Gruenfeld, Russian variation with e46930.4%51.4%
B76Sicilian, dragon, Yugoslav attack, 7...O-O62129.8%51.4%
A29English, four knights, kingside fianchetto1696530.7%51.4%
B34Sicilian, accelerated fianchetto, modern variation121732.0%51.4%
B44Sicilian, Szen (`anti-Taimanov') variation97731.4%51.4%
D55QGD, Neo-orthodox variation, 7.Bxf631536.8%51.4%
C33KGA, bishop's gambit, Jaenisch variation10526.7%51.4%
D95Gruenfeld with e3 & Qb37138.0%51.4%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation405331.5%51.4%
C42Petrov, Cozio (Lasker) attack28632.2%51.4%
D46QGD semi-Slav, 6.Bd310828.7%51.4%
E25Nimzo-Indian, Saemisch, Keres variation40130.9%51.4%
D14QGD Slav, exchange variation, 6.Bf4 Bf577931.8%51.3%
C28Vienna game37629.8%51.3%
A01Nimzovich-Larsen attack94226.0%51.3%
D97Gruenfeld, Russian, Byrne (Simagin) variation34025.6%51.3%
C69Ruy Lopez, exchange, Bronstein variation53130.7%51.3%
C65Ruy Lopez, Berlin defence477529.6%51.3%
E46Nimzo-Indian, 4.e3 O-O19535.9%51.3%
C89Ruy Lopez, Marshall counter-attack333033.6%51.3%
D00Queen's pawn game199825.3%51.3%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)19631.1%51.3%
C50Giuoco Pianissimo, Canal variation23730.0%51.3%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd555737.2%51.3%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a61501724.9%51.2%
A45Queen's pawn game530726.4%51.2%
A01Nimzovich-Larsen attack, English variation41627.9%51.2%
B88Sicilian, Sozin, Fischer variation4250.0%51.2%
D02Queen's bishop game353728.4%51.2%
A37English, symmetrical, Botvinnik system reversed71827.2%51.2%
C43Petrov, modern attack, Trifunovic variation8534.1%51.2%
A41Old Indian defence317226.1%51.2%
E81King's Indian, Saemisch, Byrne variation8731.0%51.1%
A06Reti, Nimzovich-Larsen attack414131.3%51.1%
D15QGD Slav accepted31528.6%51.1%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation140527.2%51.1%
C45Scotch, Mieses variation209633.3%51.1%
B90Sicilian, Najdorf1228024.8%51.1%
B83Sicilian, Scheveningen, 6.Be282431.1%51.1%
C68Ruy Lopez, exchange, Keres variation27536.7%51.1%
C53Giuoco Piano, Bird's attack13825.4%51.1%
A12English, Caro-Kann defensive system, Bogolyubov variation13822.5%51.1%
C26Vienna, Paulsen-Mieses variation102830.7%51.1%
C88Ruy Lopez, closed, 8.c34725.5%51.1%
C26Vienna, Falkbeer variation14117.0%51.1%
A46Queen's pawn, Yusupov-Rubinstein system129430.2%51.0%
C07French, Tarrasch, Eliskases variation9637.5%51.0%
C64Ruy Lopez, classical defence, Benelux variation 58233.3%51.0%
C22Centre game, Paulsen attack9832.7%51.0%
B57Sicilian, Sozin, Benko variation516429.4%51.0%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation60528.3%51.0%
A00Benko's opening1152330.9%51.0%
C12French, MacCutcheon, Chigorin variation5135.3%51.0%
C34KGA, Schallop defence10318.4%51.0%
C42Petrov, Italian variation15519.4%51.0%
D35QGD, Harrwitz attack10436.5%51.0%
E76King's Indian, Four pawns attack, dynamic line15831.0%50.9%
D63QGD, Orthodox defence, Swiss (Henneberger) variation21729.0%50.9%
A61Benoni, Uhlmann variation10928.4%50.9%
C00French, King's Indian attack740228.6%50.9%
A26English, closed system33823.1%50.9%
C23Bishop's opening, Classical variation11417.5%50.9%
E12Queen's Indian defence51629.3%50.9%
E30Nimzo-Indian, Leningrad variation47131.2%50.8%
B89Sicilian, Velimirovic attack171024.4%50.8%
A08Reti, King's Indian attack, French variation113231.0%50.8%
D39QGD, Ragozin, Vienna variation150536.7%50.8%
C47Four knights, Scotch, 4...exd478736.3%50.8%
D83Gruenfeld, Gruenfeld gambit6530.8%50.8%
C50Giuoco Piano157729.7%50.8%
D20QGA, Linares variation6628.8%50.8%
C35KGA, Cunningham, Euwe defence6830.9%50.7%
C25Vienna, Paulsen variation61622.9%50.7%
C00French, Chigorin variation317724.6%50.7%
E60Queen's pawn, Mengarini attack14124.8%50.7%
A57Benko gambit, Zaitsev system7125.4%50.7%
A00Saragossa opening93519.5%50.7%
A05Reti, King's Indian attack, Reti-Smyslov variation14727.9%50.7%
D94Gruenfeld, Makogonov variation22331.4%50.7%
A34English, symmetrical variation189626.5%50.7%
E25Nimzo-Indian, Saemisch, Romanovsky variation15643.6%50.6%
C56Two knights defence7834.6%50.6%
A38English, symmetrical, main line with d315934.6%50.6%
D30QGD, Hastings variation75035.6%50.6%
A01Nimzovich-Larsen attack, Dutch variation16721.0%50.6%
C86Ruy Lopez, Worrall attack, solid line25130.3%50.6%
A00Polish (Sokolsky) opening149828.0%50.5%
C00French, Schlechter variation47031.7%50.5%
C77Ruy Lopez, Wormald (Alapin) attack66033.2%50.5%
A54Old Indian, Ukrainian variation19930.7%50.5%
B80Sicilian, Scheveningen, English variation59824.7%50.5%
C39KGA, Kieseritsky, Kolisch defence10534.3%50.5%
A28English, four knights, Romanishin variation117634.3%50.5%
C45Scotch, Schmidt variation102140.0%50.4%
A22English opening104925.7%50.4%
E41Nimzo-Indian, 4.e3 c582333.8%50.4%
D00Queen's pawn, Mason variation, Steinitz counter-gambit58930.9%50.4%
B13Caro-Kann, exchange variation109327.3%50.4%
C20KP, Indian opening24626.8%50.4%
B53Sicilian, Chekhover variation99437.0%50.4%
E29Nimzo-Indian, Saemisch, Capablanca variation12940.3%50.4%
E70King's Indian, accelerated Averbakh system12926.4%50.4%
C49Four knights13235.6%50.4%
D03Torre attack (Tartakower variation)93423.2%50.4%
B10Caro-Kann, closed (Breyer) variation177924.6%50.4%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d528733.1%50.3%
A36English, symmetrical, Botvinnik system reversed15227.0%50.3%
D14QGD Slav, exchange, Trifunovic variation21341.3%50.2%
C84Ruy Lopez, closed, centre attack22031.4%50.2%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)26841.4%50.2%
D80Gruenfeld, Stockholm variation59135.0%50.2%
C46Four knights game92129.5%50.2%
D15QGD Slav, 5.e3 (Alekhine variation)30825.0%50.2%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7154234.8%50.1%
B70Sicilian, dragon variation78529.7%50.1%
B25Sicilian, closed, 6.f486129.2%50.1%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation53033.0%50.1%
C52Evans gambit, Lasker defence1040.0%50.0%
D26QGA, classical, Furman variation560.0%50.0%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc62321.7%50.0%
A51Budapest, Fajarowicz, Steiner variation3100.0%50.0%
C60Ruy Lopez, Vinogradov variation933.3%50.0%
A43Woozle defence4015.0%50.0%
B01Scandinavian, Mieses-Kotrvc gambit267.7%50.0%
C44Ponziani, Caro variation11636.2%50.0%
D69QGD, Orthodox defence, classical, 13.de2458.3%50.0%
C59Two knights defence, Knorre variation1100.0%50.0%
C59Two knights defence, Goering variation20.0%50.0%
C55Two knights, Max Lange attack, Marshall variation450.0%50.0%
B01Scandinavian, Icelandic gambit7530.7%50.0%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
C55Giuoco piano1100.0%50.0%
C55Two knights defence, Keidanz variation1100.0%50.0%
C54Giuoco Piano, Greco variation1100.0%50.0%
C52Evans gambit, Leonhardt variation2100.0%50.0%
C44Scotch, Goering gambit18031.1%50.0%
C35KGA, Cunningham, Bertin gambit20.0%50.0%
C02French, advance, Steinitz variation69828.1%50.0%
C23Bishop's opening, Lewis counter-gambit633.3%50.0%
C15French, Winawer, Alekhine gambit, Alatortsev variation1100.0%50.0%
A45Canard opening2718.5%50.0%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.20.0%50.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system1323.1%50.0%
B12Caro-Masi defence1414.3%50.0%
C30KGD, Norwalde variation1428.6%50.0%
C30KGD, classical, Marshall attack1127.3%50.0%
A83Dutch, Staunton gambit, Nimzovich variation714.3%50.0%
C41Philidor, Nimzovich, Sokolsky variation520.0%50.0%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack1100.0%50.0%
C37KGA, Lolli gambit (wild Muzio gambit)1100.0%50.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation714.3%50.0%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation1533.3%50.0%
C12French, MacCutcheon, Tartakower variation450.0%50.0%
C32KGD, Falkbeer, Keres variation1100.0%50.0%
D12QGD Slav, Landau variation1100.0%50.0%
C30KGD, classical, Svenonius variation520.0%50.0%
A25English, closed, Hort variation4131.7%50.0%
E93King's Indian, Petrosian system, Keres variation2828.6%50.0%
D94Gruenfeld, Opovcensky variation20737.2%50.0%
C27Boden-Kieseritsky gambit5813.8%50.0%
D52QGD, Cambridge Springs defence, Capablanca variation4136.6%50.0%
B02Alekhine's defence, Kmoch variation60.0%50.0%
B72Sicilian, dragon, 6.Be326128.0%50.0%
B07Pirc, Chinese variation20.0%50.0%
D57QGD, Lasker defence, Bernstein variation2937.9%50.0%
C44Inverted Hungarian5328.3%50.0%
C41Philidor, Hanham, Kmoch variation20.0%50.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation1100.0%50.0%
C89Ruy Lopez, Marshall, main line, Spassky variation1100.0%50.0%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1844.4%50.0%
C31KGD, Falkbeer, Rubinstein variation450.0%50.0%
C12French, MacCutcheon, Grigoriev variation955.6%50.0%
A83Dutch, Staunton gambit, Lasker variation1127.3%50.0%
B25Sicilian, closed25930.5%50.0%
C64Ruy Lopez, classical defence, Boden variation1100.0%50.0%
B12de Bruycker defence2330.4%50.0%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system76729.1%50.0%
C48Four knights, Spielmann variation633.3%50.0%
C25Vienna, Steinitz gambit, Zukertort defence1100.0%50.0%
B03Alekhine's defence, four pawns attack, 6...Nc65922.0%50.0%
B83Sicilian, modern Scheveningen, main line with Nb316123.0%50.0%
C44Ponziani, Leonhardt variation5837.9%50.0%
C42Petrov, classical attack, Krause variation1100.0%50.0%
C39King's knight's gambit20.0%50.0%
C89Ruy Lopez, Marshall, Herman Steiner variation345.9%50.0%
A66Benoni, Mikenas variation450.0%50.0%
C22Centre game, Hall variation1127.3%50.0%
C80Ruy Lopez, open, Zukertort variation714.3%50.0%
A00Amar gambit1216.7%50.0%
D32QGD, Tarrasch defence, Marshall gambit1936.8%50.0%
D49QGD semi-Slav, Meran, Rellstab attack3633.3%50.0%
C22Centre game, Charousek variation714.3%50.0%
A00Amsterdam attack933.3%50.0%
B83Sicilian, modern Scheveningen85130.4%50.0%
C38King's knight's gambit911.1%50.0%
D31QGD, semi-Slav, Koomen variation450.0%50.0%
E83King's Indian, Saemisch, Ruban variation1020.0%50.0%
A48King's Indian, Torre attack184829.3%49.9%
B21Sicilian, Smith-Morra gambit104628.3%49.9%
C49Four knights, symmetrical variation50732.0%49.9%
A01Nimzovich-Larsen attack, modern variation298230.8%49.8%
C00French defence, Steiner variation112128.0%49.8%
C00French, Two knights variation86524.4%49.8%
D00Levitsky attack (Queen's bishop attack)262924.6%49.8%
E24Nimzo-Indian, Saemisch variation19732.5%49.7%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed97433.2%49.7%
E00Neo-Indian (Seirawan) attack57324.1%49.7%
D23Queen's gambit accepted18129.8%49.7%
C77Ruy Lopez, Anderssen variation140130.0%49.7%
B15Caro-Kann defence60825.3%49.7%
A02Bird's opening285829.5%49.7%
C86Ruy Lopez, Worrall attack, sharp line27532.4%49.6%
D91Gruenfeld, 5.Bg5206131.9%49.6%
A00Clemenz (Mead's, Basman's or de Klerk's) opening487023.4%49.6%
A01Nimzovich-Larsen attack, symmetrical variation61730.1%49.6%
B74Sicilian, dragon, classical, 9.Nb324435.2%49.6%
B21Sicilian, Grand Prix attack222525.8%49.6%
E12Queen's Indian, 4.Nc3, Botvinnik variation11128.8%49.5%
E73King's Indian, 5.Be210922.0%49.5%
B98Sicilian, Najdorf variation21324.9%49.5%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation10636.8%49.5%
C44Scotch gambit, Dubois-Reti defence62631.3%49.5%
C44Scotch gambit10125.7%49.5%
B93Sicilian, Najdorf, 6.f4251229.3%49.5%
C00French, Pelikan variation8626.7%49.4%
E41Nimzo-Indian, e3, Huebner variation93925.9%49.4%
A00Grob's attack23222.0%49.4%
A12English, London defensive system38331.9%49.3%
E61King's Indian, Smyslov system14626.0%49.3%
C90Ruy Lopez, closed (with ...d6)240927.5%49.3%
A36English, ultra-symmetrical variation204828.7%49.3%
A47Queen's Indian, Marienbad system14130.5%49.3%
C11French defence62525.9%49.3%
A00Polish, Outflank variation27624.6%49.3%
C27Vienna game27526.5%49.3%
D30QGD Slav, Semmering variation20331.5%49.3%
C17French, Winawer, advance, Russian variation6726.9%49.3%
C80Ruy Lopez, open (Tarrasch) defence12438.7%49.2%
B96Sicilian, Najdorf, 7.f4197623.5%49.1%
A90Dutch-Indian, Alekhine variation11230.4%49.1%
C90Ruy Lopez, closed, Suetin variation5525.5%49.1%
C00French, Labourdonnais variation63925.5%49.1%
B88Sicilian, Sozin, Leonhardt variation68832.7%49.1%
D49QGD semi-Slav, Meran, Sozin variation41539.8%49.0%
B89Sicilian, Sozin, 7.Be3428826.9%49.0%
D00Queen's pawn, stonewall attack10225.5%49.0%
D90Gruenfeld, Flohr variation30535.7%49.0%
A23English, Bremen system, Keres variation45133.3%49.0%
C15French, Winawer, Alekhine gambit, Kan variation20034.0%49.0%
C78Ruy Lopez, ...b5 & ...d69727.8%49.0%
B24Sicilian, closed61528.0%48.9%
C74Ruy Lopez, modern Steinitz defence, siesta variation4725.5%48.9%
C44Inverted Hanham4725.5%48.9%
B58Sicilian, Boleslavsky variation88533.2%48.9%
E17Queen's Indian, 5.Bg2 Be79333.3%48.9%
A22English, Bremen, Smyslov system268328.1%48.9%
E75King's Indian, Averbakh, main line4632.6%48.9%
C41Philidor, Nimzovich, Sozin variation4517.8%48.9%
D48QGD semi-Slav, Meran, 8...a6659330.9%48.9%
C48Four knights, Rubinstein counter-gambit, exchange variation13342.1%48.9%
A36English, symmetrical variation17126.3%48.8%
C53Giuoco Piano, close variation4221.4%48.8%
C89Ruy Lopez, Marshall, main line, 14...Qh387041.6%48.7%
C51Evans gambit, Cordel variation11430.7%48.7%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3291428.6%48.7%
A00Benko's opening, reversed Alekhine11326.5%48.7%
B10Caro-Kann, Goldman (Spielmann) variation11123.4%48.6%
A12English, Capablanca's variation7427.0%48.6%
D44QGD semi-Slav, 5.Bg5 dc40133.4%48.6%
B90Sicilian, Najdorf, Lipnitzky attack229628.9%48.6%
B13Caro-Kann, Panov-Botvinnik, normal variation25536.1%48.6%
A03Bird's opening303824.4%48.6%
C55Two knights defence, Perreux variation3630.6%48.6%
B20Sicilian defence615524.2%48.6%
B73Sicilian, dragon, classical, Richter variation20536.6%48.5%
C29Vienna gambit23927.6%48.5%
A07Reti, King's Indian attack (with ...c5)43425.6%48.5%
E26Nimzo-Indian, Saemisch variation13326.3%48.5%
A25English, closed system (without ...d6)9924.2%48.5%
A52Budapest, Alekhine variation6421.9%48.4%
D52QGD, Cambridge Springs defence, Argentine variation3221.9%48.4%
B87Sicilian, Sozin with ...a6 and ...b5137727.7%48.4%
E24Nimzo-Indian, Saemisch, Botvinnik variation3125.8%48.4%
C29Vienna gambit, Steinitz variation3125.8%48.4%
D32QGD, Tarrasch defence, 4.cd ed3125.8%48.4%
A01Nimzovich-Larsen attack, classical variation181326.7%48.4%
B62Sicilian, Richter-Rauzer, 6...e618426.1%48.4%
C41Philidor, Nimzovich (Jaenisch) variation9032.2%48.3%
B44Sicilian, Szen, hedgehog variation41730.5%48.3%
C88Ruy Lopez, closed412727.4%48.3%
D48QGD semi-Slav, Meran34923.2%48.3%
B26Sicilian, closed, 6.Be355225.9%48.3%
C46Four knights, Italian variation40329.0%48.3%
C55Two knights, Max Lange attack, Schlechter variation8535.3%48.2%
C20Alapin's opening11023.6%48.2%
E46Nimzo-Indian, Simagin variation10928.4%48.2%
C55Two knights defence16128.0%48.1%
C89Ruy Lopez, Marshall counter-attack, 11...c699835.3%48.1%
B23Sicilian, closed, Korchnoi variation36233.1%48.1%
A26English, Botvinnik system41324.5%48.1%
A00Novosibirsk opening258.0%48.0%
E49Nimzo-Indian, 4.e3, Botvinnik system43929.4%47.9%
D12QGD Slav, Amsterdam variation7335.6%47.9%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)9625.0%47.9%
C45Scotch, Potter variation28234.8%47.9%
A09Reti, advance variation159325.7%47.8%
C30KGD, Keene's defence4320.9%47.7%
D44QGD semi-Slav, Botvinnik system (anti-Meran)36224.0%47.7%
B02Alekhine's defence, Two pawns' (Lasker's) attack14841.2%47.6%
D52QGD, Cambridge Springs defence8248.8%47.6%
D29QGA, classical, 8...Bb777831.4%47.6%
A00Anderssen's opening70321.9%47.5%
B02Alekhine's defence, Maroczy variation27023.0%47.4%
A00Ware (Meadow Hay) opening20521.5%47.3%
C51Evans gambit declined, Showalter variation1838.9%47.2%
C44King's pawn game7126.8%47.2%
C51Evans gambit declined, 5.a410529.5%47.1%
C77Ruy Lopez, Morphy defence, Duras variation10531.4%47.1%
C34KGA, Fischer defence22622.6%47.1%
A45Queen's pawn, Bronstein gambit1711.8%47.1%
C33KGA, bishop's gambit, Bogolyubov variation3411.8%47.1%
C55Two knights, Max Lange attack8422.6%47.0%
D40QGD, Semi-Tarrasch, symmetrical variation6532.3%46.9%
C31KGD, Falkbeer counter-gambit6520.0%46.9%
E31Nimzo-Indian, Leningrad, main line21120.9%46.9%
A83Dutch, Staunton gambit, Staunton's line24326.3%46.9%
C59Two knights defence17826.4%46.9%
E60King's Indian, 3.g3, counterthrust variation1631.3%46.9%
A17English, Queens Indian, Romanishin variation4835.4%46.9%
A02Bird, From gambit8028.8%46.9%
C61Ruy Lopez, Bird's defence, Paulsen variation1631.3%46.9%
D15QGD Slav, Slav gambit32826.5%46.8%
A00Lasker simul special14027.9%46.8%
A28English, Nenarokov variation7733.8%46.8%
C30KGD, classical variation22820.6%46.7%
A80Dutch, Krejcik gambit16733.5%46.7%
B97Sicilian, Najdorf, 7...Qb6253823.6%46.7%
D30QGD, Capablanca variation6020.0%46.7%
C02French, advance, Nimzovich system32719.3%46.6%
C44Dresden opening5820.7%46.6%
A13English, Wimpey system33130.8%46.5%
C42Petrov, Cochrane gambit4314.0%46.5%
C44Ponziani, Jaenisch counter-attack69232.2%46.5%
D24QGA, Bogolyubov variation25216.7%46.4%
B98Sicilian, Najdorf, Goteborg (Argentine) variation1435.7%46.4%
B01Scandinavian gambit19531.3%46.4%
A20English, Nimzovich, Flohr variation66329.4%46.4%
E20Nimzo-Indian defence27229.4%46.3%
D01Richter-Veresov attack124026.5%46.3%
C44Scotch, Relfsson gambit ('MacLopez')4012.5%46.3%
C57Two knights defence, Fegatello attack7936.7%46.2%
C35KGA, Cunningham defence10322.3%46.1%
C33KGA, bishop's gambit, Steinitz defence7729.9%46.1%
C80Ruy Lopez, open, 8...Be6133032.0%46.0%
E10Doery defence10823.1%45.8%
B50Sicilian, wing gambit deferred3619.4%45.8%
C37KGA, Salvio gambit1225.0%45.8%
C44Konstantinopolsky opening2416.7%45.8%
B71Sicilian, dragon, Levenfish variation8333.7%45.8%
B22Sicilian, 2.c3, Heidenfeld variation4727.7%45.7%
D15QGD Slav, Tolush-Geller gambit31427.1%45.7%
E60King's Indian, Anti-Gruenfeld13922.3%45.7%
C60Ruy Lopez, Lucena defence2321.7%45.7%
E53Nimzo-Indian, 4.e3, Keres variation11533.9%45.7%
C43Petrov, Urusov gambit468.7%45.7%
B20Sicilian, wing gambit8023.8%45.6%
C66Ruy Lopez, closed Berlin defence, Bernstein variation3438.2%45.6%
C00French, Alapin variation4515.6%45.6%
A06Santasiere's folly13536.3%45.6%
A12English, New York (London) defensive system4533.3%45.6%
C39KGA, Kieseritsky, Berlin defence, 6.Bc45630.4%45.5%
C42Petrov, Paulsen attack26527.5%45.5%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit229.1%45.5%
C68Ruy Lopez, exchange, Romanovsky variation1118.2%45.5%
C34King's knight's gambit7715.6%45.5%
D00Blackmar-Diemer, Euwe defence110.0%45.5%
C45Scotch, Steinitz variation5521.8%45.5%
C65Ruy Lopez, Berlin defence, Kaufmann variation1118.2%45.5%
C45Scotch, Romanishin variation3228.1%45.3%
C65Ruy Lopez, Berlin defence, Duras variation3234.4%45.3%
B86Sicilian, Sozin attack24426.6%45.3%
C33KGA, bishop's gambit, Morphy variation4223.8%45.2%
C31KGD, Nimzovich counter-gambit5225.0%45.2%
C20KP, Lopez opening6235.5%45.2%
C67Ruy Lopez, Berlin defence, Winawer attack1070.0%45.0%
B37Sicilian, accelerated fianchetto, Simagin variation1030.0%45.0%
C25Vienna game, Max Lange defence6923.2%44.9%
B02Alekhine's defence, Welling variation2927.6%44.8%
C51Evans gambit, Stone-Ware variation5722.8%44.7%
E92King's Indian, classical variation1926.3%44.7%
C60Ruy Lopez, Nuernberg variation1936.8%44.7%
C67Ruy Lopez, open Berlin defence, l'Hermet variation9534.7%44.7%
B72Sicilian, dragon, classical, Nottingham variation8528.2%44.7%
C48Four knights, Ranken variation2825.0%44.6%
A25English, closed, Taimanov variation2737.0%44.4%
C51Evans gambit, Paulsen variation3611.1%44.4%
C33King's gambit accepted922.2%44.4%
B72Sicilian, dragon, classical, Amsterdam variation6338.1%44.4%
D31QGD, semi-Slav, Abrahams variation76730.4%44.4%
B97Sicilian, Najdorf, Poisoned pawn variation339927.4%44.3%
A21English, Keres variation2634.6%44.2%
C33KGA, Keres (Mason-Steinitz) gambit439.3%44.2%
B80Sicilian, Scheveningen, Vitolins variation11019.1%44.1%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack4231.0%44.0%
D35QGD, 3...Nf620133.3%44.0%
A28English, Bradley Beach variation18829.3%43.9%
C11French, Swiss variation13730.7%43.8%
D95Gruenfeld, Botvinnik variation11230.4%43.8%
A22English, Bellon gambit1612.5%43.8%
C33KGA, bishop's gambit, Paulsen attack812.5%43.8%
C36KGA, Abbazia defence, modern variation20634.0%43.7%
C68Ruy Lopez, exchange, Alekhine variation7631.6%43.4%
C67Ruy Lopez, Berlin defence, Zukertort variation1560.0%43.3%
E03Catalan, open, Alekhine variation156.7%43.3%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc63020.0%43.3%
A04Reti, Lisitsin gambit deferred5820.7%43.1%
D01Richter-Veresov attack, Richter variation6540.0%43.1%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit16627.1%43.1%
D27QGA, classical, Geller variation8632.6%43.0%
C47Four knights, Belgrade gambit24926.5%43.0%
C46Four knights, Gunsberg variation12029.2%42.9%
A68Benoni, four pawns attack140.0%42.9%
D50QGD, Been-Koomen variation1428.6%42.9%
D32QGD, Tarrasch defence, Tarrasch gambit728.6%42.9%
C17French, Winawer, advance, Rauzer variation757.1%42.9%
A03Mujannah opening70.0%42.9%
C51Evans gambit declined2138.1%42.9%
C70Ruy Lopez, Alapin's defence deferred70.0%42.9%
C31KGD, Falkbeer, Nimzovich variation70.0%42.9%
C33KGA, Villemson (Steinitz) gambit728.6%42.9%
D67QGD, Orthodox defence, Bd3 line, Janowski variation757.1%42.9%
C33KGA, bishop's gambit, Ruy Lopez defence757.1%42.9%
C89Ruy Lopez, Marshall, Kevitz variation1428.6%42.9%
D00Blackmar gambit8229.3%42.7%
E30Nimzo-Indian, Leningrad, ...b5 gambit3444.1%42.6%
B34Sicilian, accelerated fianchetto, exchange variation2733.3%42.6%
C56Two knights defence, Canal variation2748.1%42.6%
C49Four knights, symmetrical, Pillsbury variation4725.5%42.6%
D65QGD, Orthodox defence, Rubinstein attack, main line2035.0%42.5%
C27Vienna, Alekhine variation9924.2%42.4%
B45Sicilian, Taimanov, American attack1952.6%42.1%
C34KGA, Bonsch-Osmolovsky variation4425.0%42.0%
D63QGD, Orthodox defence, Pillsbury attack2544.0%42.0%
A69Benoni, four pawns attack, main line9332.3%41.9%
B40Sicilian, Marshall variation2416.7%41.7%
C52Evans gambit, Waller attack616.7%41.7%
C33KGA, bishop's gambit, Bledow variation4833.3%41.7%
C51Evans gambit, normal variation1233.3%41.7%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation3036.7%41.7%
C00French, Wing gambit4812.5%41.7%
D31QGD, Alapin variation4216.7%41.7%
B00KP, Nimzovich defence, Marshall gambit616.7%41.7%
C40King's knight opening616.7%41.7%
A00Amar (Paris) opening7622.4%41.4%
C33KGA, Carrera (Basman) gambit3531.4%41.4%
C24Bishop's opening, Urusov gambit2927.6%41.4%
A45Paleface attack19119.9%41.4%
D44QGD semi-Slav, anti-Meran, Szabo variation21420.1%41.4%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation2365.2%41.3%
D59QGD, Tartakower variation20046.5%41.3%
C34KGA, Becker defence4520.0%41.1%
C21Halasz gambit4528.9%41.1%
C44Scotch opening5625.0%41.1%
E77King's Indian, Four pawns attack, Florentine gambit3930.8%41.0%
B20Sicilian, wing gambit, Marshall variation40027.5%40.8%
A00Gedult's opening3116.1%40.3%
C00French, Reversed Philidor formation8229.3%40.2%
A82Dutch, Staunton gambit16331.3%40.2%
B03Alekhine's defence, exchange, Karpov variation540.0%40.0%
E77King's Indian, Four pawns attack, 6.Be250.0%40.0%
C39KGA, Kieseritsky, Paulsen defence540.0%40.0%
C58Two knights defence, Yankovich variation540.0%40.0%
C23Bishop's opening, Lewis gambit540.0%40.0%
C44Scotch, Goering gambit, Bardeleben variation1020.0%40.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence3033.3%40.0%
C46Four knights, Schultze-Mueller gambit2429.2%39.6%
C52Evans gambit25326.9%39.5%
A46Queen's pawn, Torre attack, Wagner gambit2821.4%39.3%
C14French, classical, Pollock variation147.1%39.3%
C13French, classical, Anderssen variation4621.7%39.1%
D89Gruenfeld, exchange, Sokolsky variation6434.4%39.1%
C32KGD, Falkbeer, main line, 7...Bf5977.8%38.9%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack933.3%38.9%
D44QGD semi-Slav, Ekstrom variation5320.8%38.7%
B15Caro-Kann, Rasa-Studier gambit1330.8%38.5%
E23Nimzo-Indian, Spielmann, Karlsbad variation1729.4%38.2%
C88Ruy Lopez, closed, 7...d6, 8.d412623.8%38.1%
C24Bishop's opening, Ponziani gambit2128.6%38.1%
C38KGA, Hanstein gambit2119.0%38.1%
C49Four knights, Janowski variation2138.1%38.1%
C54Giuoco Piano, Moeller (Therkatz) attack2544.0%38.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation2528.0%38.0%
E26Nimzo-Indian, Saemisch, O'Kelly variation3721.6%37.8%
A25English, closed, 5.Rb1 Taimanov variation425.0%37.5%
B02Alekhine's defence, Steiner variation825.0%37.5%
C80Ruy Lopez, open, Friess attack850.0%37.5%
A43Hawk (Habichd) defence425.0%37.5%
A84Dutch, Staunton gambit deferred1625.0%37.5%
C25Vienna, Hamppe-Allgaier gambit425.0%37.5%
C54Giuoco Piano, Greco's attack425.0%37.5%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation850.0%37.5%
C39KGA, Kieseritsky, Berlin defence5516.4%37.3%
C57Two knights defence6420.3%36.7%
D21QGA, Alekhine defense, Borisenko-Furman variation3729.7%36.5%
A38English, symmetrical, main line with b31136.4%36.4%
E20Nimzo-Indian, Mikenas attack1827.8%36.1%
C25Vienna, Pierce gambit1816.7%36.1%
B02Alekhine's defence, Krejcik variation1827.8%36.1%
C33KGA, bishop's gambit, Boden defence714.3%35.7%
C51Evans gambit, 5...Be7771.4%35.7%
C41Philidor, Nimzovich, Larobok variation5141.2%34.3%
D50QGD, Semi-Tarrasch, Krause variation366.7%33.3%
C27Boden-Kieseritsky gambit, Lichtenhein defence633.3%33.3%
C11French, Steinitz, Bradford attack30.0%33.3%
C01French, exchange, Bogolyubov variation922.2%33.3%
A56Vulture defence30.0%33.3%
D50QGD, Canal (Venice) variation30.0%33.3%
C80Ruy Lopez, open, Berger variation666.7%33.3%
C40Latvian, Polerio variation60.0%33.3%
C37KGA, Salvio gambit, Anderssen counter-attack30.0%33.3%
C80Ruy Lopez, open, Richter variation30.0%33.3%
C30KGD, classical, Heath variation366.7%33.3%
C67Ruy Lopez, Berlin defence, Pillsbury variation366.7%33.3%
C32KGD, Falkbeer, Reti variation366.7%33.3%
C21Danish gambit, Collijn defence30.0%33.3%
A57Benko gambit, Nescafe Frappe attack120.0%33.3%
C80Ruy Lopez, open, Schlechter defence2339.1%32.6%
C11French, Henneberger variation3138.7%32.3%
C13French, classical, Anderssen-Richter variation1315.4%30.8%
C51Evans gambit declined, Cordel variation1330.8%30.8%
B23Sicilian, Grand Prix attack, Schofman variation1827.8%30.6%
C33KGA, Breyer gambit2040.0%30.0%
C45Scotch, Paulsen attack1533.3%30.0%
A02Bird, From gambit, Lipke variation520.0%30.0%
C29Vienna gambit, Bardeleben variation1225.0%29.2%
C37KGA, Blachly gambit2416.7%29.2%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit3125.8%29.0%
C44Tayler opening728.6%28.6%
E14Queen's Indian, Averbakh variation728.6%28.6%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation728.6%28.6%
A42Modern defence, Averbakh system, Randspringer variation728.6%28.6%
C02French, advance, Nimzovich variation5125.5%28.4%
A00Battambang opening933.3%27.8%
C38KGA, Philidor gambit40.0%25.0%
B05Alekhine's defence, modern, Vitolins attack850.0%25.0%
C52Evans gambit, Levenfish variation250.0%25.0%
C23Bishop's opening, Calabrese counter-gambit250.0%25.0%
A46Doery defence250.0%25.0%
C52Evans gambit, Richardson attack616.7%25.0%
D43QGD semi-Slav, Hastings variation825.0%25.0%
C39KGA, Kieseritsky, Rice gambit2250.0%25.0%
C14French, classical variation2313.0%23.9%
B73Sicilian, dragon, classical, Zollner gambit1735.3%23.5%
C33KGA, bishop's gambit, classical defence119.1%22.7%
A00Grob, Fritz gambit3910.3%20.5%
C38KGA, Philidor gambit, Schultz variation50.0%20.0%
E36Nimzo-Indian, classical, Noa variation, main line50.0%20.0%
D34QGD, Tarrasch, Bogolyubov variation540.0%20.0%
C45Scotch, Blumenfeld attack1040.0%20.0%
A80Dutch, Von Pretzel gambit333.3%16.7%
A80Dutch, Spielmann gambit333.3%16.7%
C37KGA, Muzio gambit119.1%13.6%
C37KGA, Quaade gambit137.7%11.5%
C65Ruy Lopez, Berlin defence, Anderssen variation616.7%8.3%
C37KGA, Ghulam Kassim gambit10.0%0.0%
C51Evans gambit60.0%0.0%
C37KGA, double Muzio gambit10.0%0.0%
C37KGA, Silberschmidt gambit20.0%0.0%
C44Ponziani counter-gambit, Schmidt attack10.0%0.0%
C37KGA, King's knight's gambit10.0%0.0%
D51QGD, Rochlin variation10.0%0.0%
C98Ruy Lopez, closed, Chigorin, Rauzer attack10.0%0.0%
B62Sicilian, Richter-Rauzer, Richter attack10.0%0.0%
C57Two knights defence, Fegatello attack, Leonhardt variation30.0%0.0%
C57Two knights defence, Fegatello attack, Polerio defence10.0%0.0%
D08QGD, Albin counter-gambit, Balogh variation10.0%0.0%
C45Scotch, Rosenthal variation10.0%0.0%
C32KGD, Falkbeer, Charousek variation10.0%0.0%
D55QGD, Pillsbury attack10.0%0.0%
C34KGA, Gianutio counter-gambit10.0%0.0%

Created in 2005-2013 by CCRL team
Last games added on February 17, 2018