CCRL 40/40
Downloads and Statistics
February 17, 2018
Testing summary:
Total: 795'341 games
played by 2'045 programs
110322 CPU days (X2 4600+)

White wins: 272'710 (34.3%)
Black wins: 201'857 (25.4%)
Draws: 320'774 (40.3%)
White score: 54.5%

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
C70Ruy Lopez, Graz variation6100.0%50.0%
C30KGD, classical, Marshall attack4100.0%50.0%
C45Scotch, Ghulam Kassim variation4100.0%50.0%
C32KGD, Falkbeer, Charousek gambit2100.0%50.0%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
C49Four knights, symmetrical, Blake variation2100.0%50.0%
E21Nimzo-Indian, three knights, Euwe variation2100.0%50.0%
C44Scotch opening2100.0%50.0%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C77Ruy Lopez, Wormald attack, Gruenfeld variation2100.0%50.0%
E77King's Indian, Four pawns attack, Florentine gambit2100.0%50.0%
C48Four knights, Rubinstein counter-gambit, 5.Be22100.0%50.0%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C30KGD, classical, Reti variation1100.0%50.0%
C65Ruy Lopez, Berlin defence, Anderssen variation1100.0%50.0%
A38English, symmetrical, main line with b31100.0%50.0%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C15French, Winawer, Kondratiyev variation1100.0%50.0%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
C55Two knights defence, Keidanz variation1100.0%50.0%
A56Vulture defence1100.0%50.0%
D50QGD, Semi-Tarrasch, Krause variation1100.0%50.0%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C30KGD, classical, Svenonius variation1100.0%50.0%
C43Petrov, modern attack, Steinitz variation1100.0%50.0%
C11French, Steinitz, Bradford attack1100.0%50.0%
D63QGD, Orthodox defence, Capablanca variation1100.0%50.0%
B12Caro-Masi defence1100.0%50.0%
C37KGA, Silberschmidt gambit1100.0%50.0%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
C41Philidor, Nimzovich, Klein variation785.7%57.1%
C40Latvian gambit, 3.Bc4785.7%42.9%
C29Vienna gambit, Paulsen attack683.3%58.3%
C31KGD, Falkbeer, 3...e4683.3%58.3%
C42Petrov, classical attack, Berger variation1275.0%54.2%
C37KGA, Rosentreter gambit875.0%37.5%
D41QGD, Semi-Tarrasch, Kmoch variation875.0%50.0%
E08Catalan, closed, Zagoryansky variation475.0%37.5%
C21Danish gambit, Collijn defence475.0%37.5%
A86Dutch, Hort-Antoshin system475.0%62.5%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1573.3%63.3%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1172.7%54.5%
C33KGA, bishop's gambit, Maurian defence771.4%50.0%
C10French, Rubinstein, Capablanca line771.4%50.0%
D57QGD, Lasker defence, Bernstein variation1070.0%45.0%
C37KGA, King's knight's gambit1369.2%65.4%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation1968.4%65.8%
C41Philidor, Nimzovich, Sokolsky variation666.7%66.7%
E20Nimzo-Indian, Mikenas attack666.7%50.0%
C44Scotch, Relfsson gambit ('MacLopez')666.7%66.7%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
B15Caro-Kann, Gurgenidze counter-attack366.7%66.7%
C49Four knights, Svenonius variation366.7%66.7%
C80Ruy Lopez, open, Berger variation366.7%33.3%
A43Hawk (Habichd) defence366.7%33.3%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation366.7%66.7%
D00Queen's pawn, Anti-Veresov366.7%33.3%
C40QP counter-gambit, Maroczy gambit366.7%66.7%
C48Four knights, Spielmann variation366.7%33.3%
C48Four knights, Rubinstein counter-gambit, exchange variation14465.3%52.1%
D51QGD1764.7%61.8%
C65Ruy Lopez, Berlin defence, Mortimer variation1464.3%32.1%
C57Two knights defence, Ulvestad variation2263.6%45.5%
C39KGA, Kieseritsky, Neumann defence1163.6%68.2%
C21Danish gambit, Soerensen defence3262.5%56.3%
D51QGD, Capablanca anti-Cambridge Springs variation1662.5%68.8%
C83Ruy Lopez, open, Malkin variation1662.5%56.3%
B01Scandinavian, Mieses-Kotrvc gambit862.5%43.8%
C31KGD, Falkbeer, 4.d3862.5%68.8%
B44Sicilian, Szen variation, Dely-Kasparov gambit2161.9%59.5%
D05Queen's pawn game, Zukertort variation1861.1%52.8%
D34QGD, Tarrasch, Reti variation2860.7%58.9%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd75360.4%50.9%
C40QP counter-gambit (elephant gambit)1560.0%63.3%
C26Vienna, Mengarini variation1060.0%40.0%
C57Two knights defence, Fritz variation1060.0%40.0%
A51Budapest, Fajarowicz, Steiner variation560.0%50.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence560.0%30.0%
C31KGD, Falkbeer, Nimzovich variation560.0%70.0%
A02Bird, Hobbs gambit560.0%70.0%
C42Petrov, French attack560.0%70.0%
C49Four knights, symmetrical, Pillsbury variation4259.5%48.8%
C49Four knights, symmetrical, Capablanca variation2259.1%61.4%
C70Ruy Lopez, fianchetto defence deferred3458.8%55.9%
C41Philidor, Hanham, Krause variation1258.3%37.5%
D22QGA, Haberditz variation10358.3%51.5%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
C53Giuoco Piano, Anderssen variation1957.9%39.5%
B18Caro-Kann, classical, Flohr variation8357.8%49.4%
C49Four knights, Nimzovich (Paulsen) variation5457.4%58.3%
C66Ruy Lopez, closed Berlin defence, Wolf variation6157.4%56.6%
D57QGD, Lasker defence, main line4957.1%53.1%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation3557.1%54.3%
A47Queen's Indian, Marienbad system, Berg variation1457.1%57.1%
E23Nimzo-Indian, Spielmann, San Remo variation757.1%71.4%
C42Petrov, classical attack, Krause variation757.1%28.6%
C23Bishop's opening, Philidor counter-attack15157.0%49.0%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)4656.5%58.7%
C65Ruy Lopez, Berlin defence, Nyholm attack7156.3%54.9%
B62Sicilian, Richter-Rauzer, Podvebrady variation1656.3%34.4%
A06Tennison (Lemberg, Zukertort) gambit1656.3%40.6%
C67Ruy Lopez, open Berlin defence, l'Hermet variation7556.0%49.3%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation2556.0%56.0%
D27QGA, classical, Geller variation7255.6%52.8%
D26QGA, classical, Steinitz variation4555.6%63.3%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2755.6%57.4%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
A84Dutch, Staunton gambit deferred955.6%27.8%
A02Bird, From gambit, Lasker variation2955.2%58.6%
D08QGD, Albin counter-gambit, Alapin variation2055.0%57.5%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit3154.8%46.8%
B07Pirc, bayonet (Mariotti) attack3154.8%56.5%
C68Ruy Lopez, exchange, Keres variation8454.8%51.2%
D33QGD, Tarrasch, Folkestone (Swedish) variation4254.8%58.3%
C49Four knights6454.7%49.2%
D87Gruenfeld, exchange, Seville variation7754.5%62.3%
C96Ruy Lopez, closed (8...Na5)2254.5%63.6%
D65QGD, Orthodox defence, Rubinstein attack, main line1154.5%72.7%
D45QGD semi-Slav, stonewall defence1154.5%54.5%
C80Ruy Lopez, open, Tartakower variation1154.5%45.5%
C30KGD, Keene's defence1154.5%63.6%
C45Scotch, Meitner variation3554.3%55.7%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc47254.2%41.0%
C86Ruy Lopez, Worrall attack2454.2%56.3%
E92King's Indian, Andersson variation28154.1%49.5%
A83Dutch, Staunton gambit, Lasker variation1353.8%42.3%
E77King's Indian, Four pawns attack, 6.Be21353.8%50.0%
D30QGD, Vienna variation67853.8%52.6%
D25QGA, Smyslov variation9553.7%58.4%
D29QGA, classical, Smyslov variation4153.7%46.3%
C54Giuoco Piano17853.4%52.5%
D69QGD, Orthodox defence, classical, 13.de1553.3%53.3%
C67Ruy Lopez, Berlin defence, Zukertort variation1553.3%60.0%
C89Ruy Lopez, Marshall counter-attack50053.0%54.1%
E05Catalan, open, classical line10053.0%54.5%
A12English, New York (London) defensive system3452.9%44.1%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1752.9%44.1%
E34Nimzo-Indian, classical, Noa variation74152.9%54.3%
E17Queen's Indian, Euwe variation5952.5%55.1%
C66Ruy Lopez, Berlin defence, hedgehog variation9952.5%57.6%
D12QGD Slav, Amsterdam variation2152.4%45.2%
D56QGD, Lasker defence, Teichmann variation9252.2%50.0%
D51QGD, 5...c67152.1%52.8%
E10Dzindzikhashvili defence7152.1%58.5%
D55QGD, Petrosian variation35952.1%53.6%
C51Evans gambit, Cordel variation7552.0%44.7%
E56Nimzo-Indian, 4.e3, main line with 7...Nc633551.9%56.4%
C81Ruy Lopez, open, Howell attack13351.9%50.8%
C31KGD, Nimzovich counter-gambit2751.9%63.0%
C73Ruy Lopez, modern Steinitz defence, Richter variation13751.8%53.6%
B74Sicilian, dragon, classical, 9.Nb335951.8%47.9%
D26QGA, classical variation65451.7%52.9%
D28QGA, classical, 7...b519851.5%56.1%
D53QGD, 4.Bg5 Be7, 5.e3 O-O3551.4%51.4%
C48Four knights, Spanish variation22451.3%56.5%
B23Sicilian, closed, Korchnoi variation13551.1%53.0%
A94Dutch, stonewall with Ba34551.1%56.7%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation19451.0%56.4%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence4951.0%39.8%
D35QGD, Harrwitz attack19851.0%55.3%
D73Neo-Gruenfeld, 5.Nf379150.9%55.4%
A92Dutch defence5550.9%58.2%
E65King's Indian, fianchetto, Yugoslav, 7.O-O16750.9%52.4%
D84Gruenfeld, Gruenfeld gambit accepted5750.9%55.3%
B20Sicilian, wing gambit5750.9%41.2%
C45Scotch, Schmidt variation60450.8%46.8%
E20Nimzo-Indian defence12650.8%51.6%
D28QGA, classical, 7.Qe26350.8%60.3%
C89Ruy Lopez, Marshall, main line, 14...Qh341950.6%51.1%
C66Ruy Lopez, Berlin defence, 4.O-O, d68950.6%54.5%
D27QGA, classical, 6...a6380150.5%55.1%
D39QGD, Ragozin, Vienna variation156750.4%51.2%
B19Caro-Kann, classical, 7...Nd737950.4%53.2%
C08French, Tarrasch, open, 4.ed ed123750.3%54.6%
D93Gruenfeld with Bf4 e327650.0%52.2%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)14450.0%56.9%
B13Caro-Kann, Panov-Botvinnik, normal variation9050.0%57.2%
D94Gruenfeld, Makogonov variation8450.0%47.6%
C67Ruy Lopez, Berlin defence, Rosenthal variation2450.0%62.5%
D01Richter-Veresov attack, Veresov variation2250.0%47.7%
C55Two knights, Max Lange attack, Schlechter variation2250.0%52.3%
D94Gruenfeld, Flohr defence1850.0%58.3%
C92Ruy Lopez, closed, Keres (9...a5) variation1650.0%43.8%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C33KGA, Keres (Mason-Steinitz) gambit1450.0%32.1%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
B57Sicilian, Magnus Smith trap1050.0%35.0%
C80Ruy Lopez, open, Riga variation1050.0%65.0%
C48Four knights, Bardeleben variation850.0%50.0%
B03Alekhine's defence, exchange, Karpov variation850.0%50.0%
D89Gruenfeld, exchange, Sokolsky variation850.0%37.5%
C44Konstantinopolsky opening850.0%62.5%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation650.0%75.0%
C14French, classical, Stahlberg variation650.0%58.3%
C41Philidor, Philidor counter-gambit, Zukertort variation650.0%75.0%
C31KGD, Falkbeer, Tartakower variation650.0%58.3%
C00French, Alapin variation650.0%75.0%
A00Durkin's attack650.0%41.7%
A81Dutch, Leningrad, Karlsbad variation650.0%58.3%
C33KGA, bishop's gambit, Paulsen attack450.0%50.0%
A81Dutch, Leningrad, Basman system450.0%75.0%
C41Philidor, Hanham, Delmar variation450.0%75.0%
C51Evans gambit450.0%75.0%
B05Alekhine's defence, modern, Vitolins attack450.0%50.0%
C22Centre game, Charousek variation450.0%50.0%
C64Ruy Lopez, classical defence, Charousek variation450.0%75.0%
B00Carr's defence450.0%50.0%
E60King's Indian, Danube gambit450.0%75.0%
A03Mujannah opening450.0%25.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence450.0%75.0%
C32KGD, Falkbeer, Reti variation450.0%50.0%
C21Halasz gambit450.0%50.0%
B71Sicilian, dragon, Levenfish; Flohr variation450.0%50.0%
B07Pirc, Chinese variation250.0%25.0%
C52Evans gambit, Alapin-Steinitz variation250.0%25.0%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
A02Bird's opening, Swiss gambit250.0%75.0%
C52Evans gambit, Leonhardt variation250.0%25.0%
C10French, Marshall variation250.0%25.0%
C20KP, King's head opening250.0%25.0%
C83Ruy Lopez, open, Breslau variation250.0%75.0%
B01Scandinavian, Richter variation250.0%75.0%
B02Alekhine's defence, Krejcik variation250.0%25.0%
C41Philidor, Paulsen attack250.0%25.0%
C51Evans counter-gambit250.0%75.0%
B00Corn stalk defence250.0%25.0%
D19QGD Slav, Dutch, Saemisch variation250.0%25.0%
C23Bishop's opening, Wing gambit250.0%75.0%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C37KGA, Salvio gambit250.0%75.0%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation250.0%75.0%
C23Bishop's opening, MacDonnell double gambit250.0%25.0%
B06Norwegian defence250.0%25.0%
A28English, four knights, Romanishin variation44149.9%52.8%
D14QGD Slav, exchange, Trifunovic variation20749.8%52.4%
D16QGD Slav, Soultanbeieff variation39449.7%53.6%
B14Caro-Kann, Panov-Botvinnik attack, 5...g631049.7%53.2%
D48QGD semi-Slav, Meran, 8...a6137649.6%48.9%
D47QGD semi-Slav, Meran variation124249.4%54.8%
D14QGD Slav, exchange variation, 6.Bf4 Bf565549.3%51.4%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d514049.3%48.9%
C47Four knights, Scotch, 4...exd446749.3%53.7%
C09French, Tarrasch, open variation, main line104349.2%56.8%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd518349.2%47.0%
D05Colle system16949.1%54.7%
B80Sicilian, Scheveningen, Vitolins variation4949.0%51.0%
C42Petrov, Kaufmann attack19249.0%49.5%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc39248.9%58.2%
C41Philidor, Nimzovich variation4548.9%57.8%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc118948.9%55.6%
A12English, Caro-Kann defensive system, Bogolyubov variation8248.8%53.7%
C67Ruy Lopez, Berlin defence, Minckwitz variation4148.8%61.0%
C10French, Rubinstein variation211548.7%55.5%
C90Ruy Lopez, closed, Lutikov variation3748.6%56.8%
C42Petrov, Cozio (Lasker) attack49848.6%52.6%
C84Ruy Lopez, closed, centre attack16948.5%46.7%
C83Ruy Lopez, open, classical defence16748.5%60.8%
D17QGD Slav, Czech defence35948.5%54.6%
E06Catalan, closed, 5.Nf3286248.5%54.0%
D24QGA, Bogolyubov variation15748.4%56.7%
C43Petrov, modern (Steinitz) attack3148.4%56.5%
D79Neo-Gruenfeld, 6.O-O, main line46348.4%54.6%
B10Caro-Kann, anti-anti-Caro-Kann defence131348.4%52.1%
C82Ruy Lopez, open, Italian variation8948.3%65.7%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd353048.3%51.9%
C00St. George defence11648.3%63.8%
D47QGD semi-Slav, neo-Meran (Lundin variation)28448.2%54.8%
D30QGD, Hastings variation54248.2%53.0%
D85Gruenfeld, exchange variation271748.1%56.5%
D90Gruenfeld, Three knights variation52648.1%54.8%
C42Petrov, classical attack73148.0%56.6%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation180848.0%55.5%
A50Queen's Indian accelerated17548.0%57.7%
C55Two knights defence, Perreux variation2548.0%52.0%
E01Catalan, closed46347.9%52.5%
D34QGD, Tarrasch, Prague variation, Normal position65747.9%56.2%
A33English, symmetrical variation146147.9%54.3%
A38English, symmetrical, main line with d314247.9%53.5%
D41QGD, Semi-Tarrasch, 5.cd60247.8%57.6%
C07French, Tarrasch, Eliskases variation11547.8%53.5%
D68QGD, Orthodox defence, classical variation6947.8%57.2%
B74Sicilian, dragon, classical, Alekhine variation2347.8%67.4%
D80Gruenfeld defence77447.8%54.5%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg713447.8%55.2%
D30QGD78647.7%52.0%
C46Four knights, Gunsberg variation8647.7%50.6%
C07French, Tarrasch, open variation351647.6%53.6%
B13Caro-Kann, Panov-Botvinnik attack97247.6%52.7%
C11French, Swiss variation4247.6%57.1%
A14English, Symmetrical, Keres defence51747.6%57.1%
D27QGA, classical, Rubinstein variation143247.6%55.8%
D34QGD, Tarrasch, Prague variation, 9.Bg554147.5%57.6%
E24Nimzo-Indian, Saemisch variation17347.4%47.4%
A92Dutch, stonewall variation7647.4%59.2%
E33Nimzo-Indian, classical, 4...Nc67647.4%59.2%
D54QGD, Anti-neo-orthodox variation3847.4%47.4%
B34Sicilian, accelerated fianchetto, exchange variation1947.4%65.8%
D41QGD, Semi-Tarrasch with e314847.3%54.7%
D35QGD, exchange, Saemisch variation27547.3%54.5%
C66Ruy Lopez, closed Berlin defence, Showalter variation5547.3%56.4%
C80Ruy Lopez, open, Bernstein variation85347.2%63.1%
D06QGD, symmetrical (Austrian) defence3647.2%56.9%
C49Four knights, symmetrical, Maroczy system5347.2%51.9%
D26QGA, classical variation, 6.O-O15747.1%58.0%
D66QGD, Orthodox defence, Bd3 line24047.1%59.0%
E02Catalan, open, 5.Qa413647.1%58.8%
B74Sicilian, dragon, classical, Reti-Tartakower variation8547.1%55.3%
D52QGD, Cambridge Springs defence, Bogoljubow variation40047.0%56.3%
C43Petrov, modern attack, main line19646.9%58.2%
D32QGD, Tarrasch defence30746.9%53.7%
E90King's Indian, Zinnowitz variation3246.9%54.7%
C65Ruy Lopez, Berlin defence, Kaufmann variation3246.9%54.7%
B59Sicilian, Boleslavsky variation, 7.Nb312646.8%52.0%
E27Nimzo-Indian, Saemisch variation4746.8%40.4%
A30English, symmetrical, hedgehog system257946.8%56.0%
A52Budapest, Adler variation15646.8%54.8%
D38QGD, Ragozin variation387646.7%52.3%
D71Neo-Gruenfeld, 5.cd28946.7%56.2%
C26Vienna, Falkbeer variation4546.7%54.4%
C31KGD, Falkbeer counter-gambit3046.7%53.3%
B85Sicilian, Scheveningen, classical main line34346.6%55.4%
E25Nimzo-Indian, Saemisch, Keres variation28346.6%53.4%
D37QGD, 4.Nf3523246.6%52.7%
D63QGD, Orthodox defence8846.6%58.5%
E15Queen's Indian, 4.g3222046.6%55.8%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6174646.6%55.3%
D94Gruenfeld, Smyslov defence15946.5%57.2%
A54Old Indian, Ukrainian variation10146.5%55.0%
C67Ruy Lopez, Berlin defence, open variation350246.5%54.1%
E25Nimzo-Indian, Saemisch, Romanovsky variation8646.5%50.0%
C44Ponziani, Jaenisch counter-attack206146.5%52.9%
D85Gruenfeld, modern exchange variation306846.5%55.9%
D58QGD, Tartakower (Makagonov-Bondarevsky) system492646.4%52.1%
D56QGD, Lasker defence32346.4%53.3%
D30QGD, Capablanca-Duras variation33646.4%53.3%
B01Scandinavian, Icelandic gambit5646.4%57.1%
B72Sicilian, dragon, classical, Grigoriev variation2846.4%51.8%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)2846.4%55.4%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system40546.4%53.8%
C77Ruy Lopez, four knights (Tarrasch) variation15346.4%55.9%
E49Nimzo-Indian, 4.e3, Botvinnik system19446.4%56.2%
C47Four knights, Belgrade gambit10846.3%54.6%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc230946.3%62.3%
D77Neo-Gruenfeld, 6.O-O67546.2%54.2%
C78Ruy Lopez, 5.O-O107846.2%54.5%
C82Ruy Lopez, open, Motzko attack6546.2%58.5%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
B88Sicilian, Sozin, Fischer variation1346.2%53.8%
E11Bogo-Indian defence, Monticelli trap1346.2%46.2%
D13QGD Slav, exchange variation69046.1%55.5%
D23QGA, Mannheim variation29346.1%52.4%
D59QGD, Tartakower variation11346.0%46.0%
C41Philidor, Nimzovich, Larobok variation5046.0%33.0%
A40Polish defence5046.0%51.0%
C42Petrov, classical attack, close variation13746.0%58.8%
C14French, classical, Alapin variation8746.0%54.0%
C54Giuoco Piano, Moeller (Therkatz) attack3745.9%47.3%
B73Sicilian, dragon, classical, 8.O-O35745.9%51.8%
C89Ruy Lopez, Marshall counter-attack, 11...c617245.9%55.5%
C42Petrov, classical attack, Jaenisch variation162345.9%58.2%
D20Queen's gambit accepted88545.9%55.3%
B58Sicilian, classical20545.9%46.8%
C95Ruy Lopez, closed, Breyer, Gligoric variation4845.8%54.2%
E36Nimzo-Indian, classical, Noa variation, 5.a327545.8%52.0%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation21445.8%57.5%
A13English, Neo-Catalan accepted107945.8%56.3%
C26Vienna game25845.7%54.7%
D55QGD, Neo-orthodox variation, 7.Bxf632845.7%51.5%
E19Queen's Indian, old main line, 9.Qxc3132345.7%58.5%
C70Ruy Lopez3545.7%51.4%
D49QGD semi-Slav, Meran, Blumenfeld variation16245.7%51.2%
A18English, Mikenas-Carls variation12745.7%55.9%
C80Ruy Lopez, open (Tarrasch) defence5745.6%59.6%
D30Queen's gambit declined580845.6%55.7%
D86Gruenfeld, exchange, classical variation104245.6%55.3%
D82Gruenfeld, 4.Bf452145.5%53.1%
D31QGD, Charousek (Petrosian) variation137245.5%52.7%
D30QGD Slav27545.5%55.1%
E07Catalan, closed, Botvinnik variation6645.5%43.9%
C45Scotch, Romanishin variation5545.5%59.1%
C44Inverted Hungarian2245.5%59.1%
C25Vienna, Pierce gambit1145.5%59.1%
D26QGA, 4...e626245.4%53.2%
D11QGD Slav, Breyer variation11945.4%58.8%
A00Polish, Outflank variation11945.4%47.9%
C70Ruy Lopez, Cozio defence deferred28045.4%53.4%
C42Petrov, Nimzovich attack109845.4%55.1%
A72Benoni, classical without 9.O-O6445.3%61.7%
C43Petrov, modern attack, Trifunovic variation5345.3%49.1%
D53QGD, 4.Bg5 Be793745.3%54.5%
C43Petrov, modern attack, Symmetrical variation229345.2%53.4%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed51845.2%50.6%
D49QGD semi-Slav, Meran, Sozin variation15545.2%45.8%
D94Gruenfeld, 5.e341045.1%57.9%
E10Queen's pawn game397045.1%55.7%
A38English, symmetrical variation51345.0%55.8%
C74Ruy Lopez, modern Steinitz defence, siesta variation2045.0%47.5%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2045.0%47.5%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)58545.0%54.6%
B97Sicilian, Najdorf, Poisoned pawn variation107744.9%49.7%
B36Sicilian, accelerated fianchetto, Maroczy bind91744.9%58.3%
B01Scandinavian, Marshall variation54144.9%60.0%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3141644.9%53.0%
D02Queen's pawn game, Krause variation35444.9%54.1%
B18Caro-Kann, classical variation149744.9%54.2%
D37QGD, classical variation (5.Bf4)399644.9%55.2%
D92Gruenfeld, 5.Bf466044.8%56.7%
E41Nimzo-Indian, 4.e3 c569844.8%54.7%
B36Sicilian, accelerated fianchetto, Gurgenidze variation25244.8%60.1%
B09Pirc, Austrian attack, 6.e58744.8%56.9%
C70Ruy Lopez, Classical defence deferred8744.8%61.5%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)9644.8%56.8%
C48Four knights, Spanish, classical defence17244.8%50.3%
B73Sicilian, dragon, classical, Richter variation10544.8%56.7%
B49Sicilian, Taimanov variation61044.8%58.1%
D60QGD, Orthodox defence, Rauzer variation3844.7%61.8%
D10QGD Slav defence, exchange variation141444.7%55.2%
C03French, Tarrasch200244.7%56.7%
C44Scotch, Goering gambit18644.6%56.7%
C72Ruy Lopez, modern Steinitz defence, 5.O-O39044.6%57.9%
B27Sicilian, Katalimov variation13044.6%61.5%
A40Queen's pawn, Keres defence167344.6%56.1%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O21144.5%56.9%
D55QGD, Neo-orthodox variation, 7.Bh413744.5%58.0%
C01French, exchange variation132344.4%53.8%
D81Gruenfeld, Russian variation35144.4%62.7%
D44QGD semi-Slav, 5.Bg5 dc14444.4%49.3%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation1844.4%33.3%
A00Amar (Paris) opening1844.4%33.3%
B72Sicilian, dragon, classical, Nottingham variation1844.4%55.6%
D95Gruenfeld with e3 & Qb31844.4%61.1%
D63QGD, Orthodox defence, Pillsbury attack1844.4%66.7%
B73Sicilian, dragon, classical, Zollner gambit944.4%44.4%
C37KGA, Muzio gambit944.4%33.3%
B02Alekhine's defence, Steiner variation944.4%55.6%
C23Bishop's opening, Philidor variation944.4%55.6%
C22Centre game, Hall variation944.4%44.4%
D40QGD, Semi-Tarrasch, symmetrical variation944.4%55.6%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb650044.4%57.2%
B01Scandinavian, Pytel-Wade variation261644.3%58.0%
E22Nimzo-Indian, Spielmann variation10644.3%50.5%
C52Evans gambit, Tartakower attack7044.3%43.6%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation159244.2%51.2%
C11French, Burn variation496444.2%52.9%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3106544.1%57.5%
B02Alekhine's defence, Two pawns' (Lasker's) attack28144.1%54.4%
C00French, Wing gambit3444.1%63.2%
E46Nimzo-Indian, Reshevsky variation87644.1%51.8%
C42Petrov's defence26144.1%52.3%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation76544.1%55.9%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)192944.0%53.8%
A58Benko gambit, fianchetto variation15044.0%61.3%
A28English, four knights system34144.0%50.7%
E12Queen's Indian, Miles variation135544.0%53.0%
D46QGD semi-Slav, Chigorin defence42344.0%53.9%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc64143.9%51.2%
A59Benko gambit4143.9%63.4%
C44Ponziani, Caro variation22143.9%49.1%
C56Two knights defence13943.9%49.3%
B44Sicilian defence30843.8%52.1%
B83Sicilian, modern Scheveningen, main line50543.8%53.2%
B22Sicilian, Alapin's variation (2.c3)574443.8%54.5%
C48Four knights, Ranken variation1643.8%65.6%
A44Old Benoni defence1643.8%65.6%
A12English, Bled variation1643.8%59.4%
A35English, symmetrical, four knights system198243.7%53.5%
C46Four knights game59943.7%50.1%
A14English, Neo-Catalan declined77843.7%54.1%
E18Queen's Indian, old main line, 7.Nc3154843.7%56.6%
C63Ruy Lopez, Schliemann defence30043.7%57.2%
C50Giuoco Pianissimo, Canal variation18143.6%52.8%
D61QGD, Orthodox defence, Rubinstein variation22043.6%51.4%
C21Centre game14943.6%58.1%
C42Petrov, classical attack, Marshall variation94043.6%56.9%
E59Nimzo-Indian, 4.e3, main line73643.6%53.5%
E04Catalan, open, 5.Nf3416343.6%53.3%
D45QGD semi-Slav, Stoltz variation1141743.6%53.4%
D06QGD, Marshall defence14043.6%58.9%
A00Grob's attack18643.5%34.7%
C55Two knights defence6243.5%52.4%
C64Ruy Lopez, classical (Cordel) defence20943.5%52.4%
D80Gruenfeld, Stockholm variation67343.5%54.2%
D42QGD, Semi-Tarrasch, 7.Bd325543.5%56.7%
C15French, Winawer, Alekhine gambit, Kan variation4643.5%47.8%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2343.5%43.5%
C00French defence, Steiner variation73443.5%51.3%
E32Nimzo-Indian, classical, Adorjan gambit9943.4%50.0%
B20Sicilian, Steinitz variation37343.4%50.1%
C41Philidor, Nimzovich, Rellstab variation3043.3%68.3%
A52Budapest defence3043.3%48.3%
C46Three knights, Steinitz variation3043.3%55.0%
D31QGD, semi-Slav, Marshall gambit76043.3%53.8%
B35Sicilian, accelerated fianchetto, modern variation with Bc4189943.3%53.0%
A15English opening1060043.3%53.5%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation21543.3%59.3%
C36KGA, Abbazia defence, modern variation22943.2%43.9%
D35QGD, exchange variation36843.2%56.4%
A30English, symmetrical, hedgehog, flexible formation17643.2%54.5%
D63QGD, Orthodox defence, Swiss (Henneberger) variation8843.2%62.5%
D31QGD, Janowski variation13943.2%52.5%
E12Queen's Indian, Petrosian system636343.1%54.0%
A00Grob, Fritz gambit5143.1%27.5%
D46QGD semi-Slav, Bogolyubov variation16043.1%57.2%
C27Vienna game11643.1%54.3%
C91Ruy Lopez, closed, Bogolyubov variation376143.1%53.8%
E25Nimzo-Indian, Saemisch variation13043.1%52.3%
D97Gruenfeld, Russian, Prins variation43943.1%57.5%
D34QGD, Tarrasch, Prague variation, 7...Be717243.0%55.8%
D15QGD Slav accepted8643.0%50.6%
C61Ruy Lopez, Bird's defence18643.0%59.7%
C30King's gambit9343.0%60.2%
C44Ponziani counter-gambit10743.0%57.9%
B17Caro-Kann, Steinitz variation362743.0%53.7%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation11443.0%56.6%
C42Petrov, classical attack, Mason variation11443.0%59.2%
C60Ruy Lopez, Cozio defence26343.0%51.1%
D94Gruenfeld, Opovcensky variation14243.0%54.6%
B12Caro-Kann, 3.Nd214943.0%59.7%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7158542.9%49.8%
C49Four knights, double Ruy Lopez6342.9%62.7%
B55Sicilian, Prins variation, Venice attack4242.9%50.0%
C13French, classical2842.9%42.9%
C25Vienna game, Max Lange defence2142.9%50.0%
E10Doery defence2142.9%54.8%
A74Benoni, classical, 9...a6, 10.a42142.9%73.8%
B09Pirc, Austrian attack, Ljubojevic variation1442.9%50.0%
B21Sicilian, Andreaschek gambit1442.9%57.1%
C27Vienna, Alekhine variation1442.9%50.0%
C33KGA, bishop's gambit, Ruy Lopez defence1442.9%50.0%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
B05Alekhine's defence, modern, Alekhine variation742.9%50.0%
D31QGD, Alapin variation742.9%64.3%
C02French, advance, Nimzovich variation742.9%50.0%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
C29Vienna gambit, Bardeleben variation742.9%35.7%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation742.9%78.6%
A51Budapest defence declined742.9%64.3%
E00Catalan opening306842.8%55.2%
A16English, Anglo-Gruenfeld defense23642.8%53.2%
B53Sicilian, Chekhover variation112442.8%50.6%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d543742.8%49.1%
B02Alekhine's defence, Scandinavian variation19442.8%54.9%
E83King's Indian, Saemisch, Panno formation19442.8%57.0%
D87Gruenfeld, exchange, Spassky variation50342.7%55.2%
A13English, Wimpey system11742.7%51.3%
C45Scotch game231642.7%53.5%
C92Ruy Lopez, closed, 9.h338242.7%52.2%
C39KGA, Kieseritsky, Kolisch defence7542.7%44.0%
C71Ruy Lopez, modern Steinitz defence10842.6%55.6%
B04Alekhine's defence, modern, Larsen variation78542.5%60.5%
D15QGD Slav, Schlechter variation27542.5%59.1%
A12English, Torre defensive system4042.5%58.8%
D09QGD, Albin counter-gambit, 5.g311342.5%58.4%
A00Benko's opening, reversed Alekhine11342.5%48.7%
A08Reti, King's Indian attack51842.5%52.3%
C75Ruy Lopez, modern Steinitz defence14642.5%54.8%
D40QGD, Semi-Tarrasch defence41742.4%54.8%
D17QGD Slav, Wiesbaden variation60842.4%57.2%
A05Reti, King's Indian attack, Spassky's variation29742.4%52.5%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd19842.4%61.1%
D95Gruenfeld, Botvinnik variation6642.4%51.5%
C34KGA, Becker defence3342.4%45.5%
B12Caro-Kann, Edinburgh variation3342.4%57.6%
E10Blumenfeld counter-gambit30242.4%54.3%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation29542.4%63.9%
D11QGD Slav, 4.e3392142.4%55.4%
C70Ruy Lopez, Caro variation8542.4%58.8%
B83Sicilian, modern Scheveningen41142.3%47.4%
C49Four knights, symmetrical variation18942.3%55.6%
C78Ruy Lopez, Archangelsk (counterthrust) variation151742.3%55.0%
D31QGD, 3.Nc376842.3%55.1%
E60King's Indian, 3.g3149642.3%56.5%
A34English, symmetrical, three knights system111842.3%55.0%
C89Ruy Lopez, Marshall, main line, 12.d2d420842.3%63.0%
C33KGA, bishop's gambit, Jaenisch variation10442.3%48.1%
C44Ponziani, Fraser defence5242.3%65.4%
C51Evans gambit declined, Showalter variation2642.3%51.9%
A07Reti, King's Indian attack (with ...c5)17542.3%49.1%
E32Nimzo-Indian, classical variation607342.3%53.8%
C46Four knights, Italian variation16842.3%48.5%
B86Sicilian, Sozin attack16142.2%53.4%
C44Ponziani, Steinitz variation45742.2%46.1%
B77Sicilian, dragon, Yugoslav attack, 9...Bd719942.2%55.8%
C28Vienna game35342.2%53.1%
C12French, MacCutcheon variation10942.2%49.5%
A19English, Mikenas-Carls, Sicilian variation34642.2%54.0%
C69Ruy Lopez, exchange, Gligoric variation68542.2%55.5%
D21QGA, 3.Nf325642.2%57.8%
D78Neo-Gruenfeld, 6.O-O c674242.2%54.6%
A28English, four knights, Stean variation8342.2%59.6%
A32English, symmetrical variation35142.2%57.5%
B41Sicilian, Kan variation20442.2%54.9%
A00Benko's opening625842.2%52.3%
D08QGD, Albin counter-gambit12142.1%59.1%
C78Ruy Lopez, Moeller defence56042.1%53.4%
C77Ruy Lopez, Anderssen variation74142.1%51.3%
D52QGD, Cambridge Springs defence3842.1%47.4%
C55Two knights, Max Lange attack1942.1%57.9%
B45Sicilian, Taimanov, American attack1942.1%42.1%
B29Sicilian, Nimzovich-Rubinstein variation70142.1%59.7%
D96Gruenfeld, Russian variation22142.1%55.0%
B01Scandinavian gambit14542.1%52.8%
B15Caro-Kann, Forgacs variation21442.1%55.1%
B01Scandinavian (centre counter) defence250342.0%57.0%
C64Ruy Lopez, Cordel gambit6942.0%58.7%
C63Ruy Lopez, Schliemann defence, Berger variation35742.0%56.9%
E08Catalan, closed, Qc2 & b320042.0%50.5%
A07Reti, King's Indian attack228942.0%53.1%
E12Queen's Indian defence64142.0%53.7%
A06Reti, Nimzovich-Larsen attack305342.0%49.6%
C26Vienna, Paulsen-Mieses variation46042.0%52.7%
C15French, Winawer (Nimzovich) variation72742.0%55.8%
D36QGD, exchange, positional line, 6.Qc224841.9%54.8%
A12English, London defensive system12441.9%51.6%
D32QGD, Tarrasch, von Hennig-Schara gambit6241.9%61.3%
E17Queen's Indian, old main line, 6.O-O83341.9%59.0%
C82Ruy Lopez, open, Dilworth variation16041.9%60.9%
C69Ruy Lopez, exchange variation, 5.O-O65241.9%53.6%
C00French, Schlechter variation17241.9%49.4%
E96King's Indian, orthodox, 7...Nbd7, main line4341.9%60.5%
C65Ruy Lopez, Berlin defence, 4.O-O16541.8%59.1%
B15Caro-Kann, Tartakower (Nimzovich) variation31141.8%55.0%
D35QGD, exchange, positional line, 5...c673741.8%55.0%
D51QGD, 4.Bg5 Nbd76741.8%53.7%
C68Ruy Lopez, exchange variation7941.8%51.3%
C11French defence15141.7%54.6%
C51Evans gambit declined, 5.a416341.7%45.4%
A07Reti, King's Indian attack (Barcza system)429241.7%53.6%
A24English, Bremen system with ...g615641.7%48.4%
C77Ruy Lopez, Morphy defence, Duras variation4841.7%56.3%
B07Pirc, Holmov system2441.7%58.3%
C42Petrov, Damiano variation2441.7%50.0%
E36Nimzo-Indian, classical, Botvinnik variation1241.7%62.5%
C32KGD, Falkbeer, 5.de1241.7%37.5%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1241.7%54.2%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1241.7%54.2%
C55Two knights, Max Lange attack, Steinitz variation1241.7%62.5%
C58Two knights defence, Yankovich variation1241.7%20.8%
D04Queen's pawn game69941.6%50.6%
C44Scotch gambit, Dubois-Reti defence28641.6%51.9%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence27441.6%51.8%
A39English, symmetrical, main line with d441641.6%57.6%
C00French, Reti (Spielmann) variation16641.6%50.3%
C45Scotch, Mieses variation135041.6%54.2%
A40Queen's pawn, English defence18341.5%62.3%
A59Benko gambit, main line11841.5%66.5%
D22QGA, Alekhine defence22441.5%56.5%
C88Ruy Lopez, closed122641.5%52.5%
E21Nimzo-Indian, three knights variation227441.5%54.2%
D63QGD, Orthodox defence, Swiss, Karlsbad variation15941.5%54.1%
B21Sicilian, Smith-Morra gambit70941.5%47.7%
D29QGA, classical, 8...Bb730441.4%48.0%
C87Ruy Lopez, closed, Averbach variation25141.4%59.8%
A13English, Romanishin gambit25141.4%56.2%
C77Ruy Lopez, Wormald (Alapin) attack32141.4%54.4%
B70Sicilian, dragon variation70041.4%51.9%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)7041.4%43.6%
E26Nimzo-Indian, Saemisch, O'Kelly variation2941.4%51.7%
C82Ruy Lopez, open, St. Petersburg variation19141.4%65.7%
D02Queen's pawn game, Chigorin variation39941.4%57.5%
A23English, Bremen system, Keres variation57841.3%48.4%
D43QGD semi-Slav658241.3%52.7%
B32Sicilian, Labourdonnais-Loewenthal variation22541.3%58.9%
B47Sicilian, Taimanov (Bastrikov) variation366841.3%54.1%
E62King's Indian, fianchetto, Larsen system27141.3%62.0%
D02Queen's pawn game472841.3%52.7%
B57Sicilian, Sozin, not Scheveningen21841.3%56.4%
C21Danish gambit10941.3%47.2%
C42Petrov, classical attack, Chigorin variation56041.3%57.2%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
B20Sicilian, Keres variation (2.Ne2)59941.2%52.0%
A13English, Neo-Catalan69441.2%53.0%
A46Queen's pawn, Yusupov-Rubinstein system73341.2%52.4%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C33KGA, bishop's gambit, Steinitz defence1741.2%38.2%
A80Dutch, Manhattan (Alapin, Ulvestad) variation1741.2%61.8%
C45Scotch, Blackburne attack1741.2%50.0%
C10French, Frere (Becker) variation1741.2%61.8%
A21English, Kramnik-Shirov counterattack193241.1%52.4%
E00Queen's pawn game40141.1%56.5%
B50Sicilian352841.1%53.0%
D10QGD Slav defence371641.1%54.1%
C69Ruy Lopez, exchange variation, Alapin gambit27541.1%51.1%
D52QGD12941.1%57.8%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d516841.1%50.9%
C17French, Winawer, advance variation5641.1%59.8%
E15Queen's Indian, 4.g3 Bb724641.1%54.3%
B27Sicilian, Hungarian variation330741.0%57.7%
E10Blumenfeld counter-gambit accepted11741.0%53.8%
D11QGD Slav, 3.Nf3216741.0%55.8%
C88Ruy Lopez, Trajkovic counter-attack62941.0%52.0%
D00Blackmar gambit20041.0%40.5%
A00Van't Kruijs opening46141.0%51.5%
A29English, four knights, kingside fianchetto594341.0%51.9%
B18Caro-Kann, classical, 6.h452741.0%53.9%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)267241.0%56.0%
C42Petrov, Paulsen attack14940.9%52.0%
A01Nimzovich-Larsen attack, symmetrical variation65040.9%49.4%
A40Queen's pawn, Charlick (Englund) gambit2240.9%56.8%
C12French, MacCutcheon, Grigoriev variation2240.9%56.8%
D45QGD semi-Slav, 5.e340640.9%56.4%
D19QGD Slav, Dutch variation, main line20840.9%56.5%
D00Queen's pawn, Mason variation85940.9%52.1%
D50QGD, 4.Bg57140.8%54.2%
D98Gruenfeld, Russian, Smyslov variation24040.8%60.4%
C24Bishop's opening, Berlin defence101440.8%53.4%
D18QGD Slav, Dutch variation26740.8%60.9%
C80Ruy Lopez, open, 7.Bb348340.8%52.9%
B85Sicilian, Scheveningen, classical13040.8%51.9%
D35QGD, exchange, positional line93740.8%54.2%
B23Sicilian, closed, 2...Nc6169640.7%51.6%
A46Queen's pawn game280140.7%55.0%
A31English, symmetrical, Benoni formation90140.7%55.9%
A37English, symmetrical variation93340.7%49.9%
C64Ruy Lopez, classical defence, 4.c325340.7%55.5%
A00Anderssen's opening39840.7%51.0%
E16Queen's Indian, Riumin variation20440.7%56.1%
C48Four knights, Rubinstein counter-gambit, Henneberger variation5940.7%50.8%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation5940.7%69.5%
B23Sicilian, Grand Prix attack, Schofman variation15040.7%53.0%
A22English, Bremen, reverse dragon65240.6%50.5%
D00Queen's pawn game51240.6%50.0%
C15French, Winawer, fingerslip variation3240.6%32.8%
B88Sicilian, Sozin, Leonhardt variation53740.6%54.7%
E53Nimzo-Indian, 4.e3, main line with ...c537240.6%54.4%
C84Ruy Lopez, closed defence126040.6%51.6%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1391140.5%56.3%
A09Reti accepted24240.5%52.9%
E90King's Indian, Larsen variation8440.5%59.5%
B30Sicilian defence250140.5%54.5%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd451940.5%55.9%
A05Reti, King's Indian attack113240.5%53.4%
E11Bogo-Indian defence, Gruenfeld variation190640.5%56.1%
B39Sicilian, accelerated fianchetto, Breyer variation62340.4%58.1%
A52Budapest, Rubinstein variation35640.4%60.4%
A13English opening, Agincourt variation121240.4%54.0%
B01Scandinavian defence89840.4%58.6%
D24QGA, 4.Nc319340.4%50.3%
D12QGD Slav, 4.e3 Bf5292040.4%54.2%
C88Ruy Lopez, closed, 7...O-O280640.4%52.3%
A64Benoni, fianchetto, 11...Re811440.4%43.9%
D20QGA, 3.e4280140.3%56.6%
A01Nimzovich-Larsen attack, modern variation292440.3%50.5%
C99Ruy Lopez, closed, Chigorin, 12...c5d490640.3%62.9%
C13French, Albin-Alekhine-Chatard attack, Breyer variation7240.3%66.0%
A22English, Carls' Bremen system37540.3%54.8%
E81King's Indian, Saemisch, Byrne variation7740.3%53.9%
A11English, Caro-Kann defensive system125540.2%54.2%
C10French, Fort Knox variation59440.2%57.5%
E12Queen's Indian, 4.Nc3443240.2%53.2%
D35QGD, 3...Nf68740.2%50.0%
B83Sicilian, Scheveningen, 6.Be252740.2%52.9%
A09Reti, advance variation79840.2%48.8%
B09Pirc, Austrian attack17940.2%60.9%
E67King's Indian, fianchetto, classical variation48540.2%55.4%
A06Santasiere's folly11240.2%42.4%
B92Sicilian, Najdorf, Opovcensky variation492140.2%53.2%
A07Reti, King's Indian attack, Yugoslav variation161440.1%52.7%
B11Caro-Kann, Two knights, 3...Bg480340.1%55.7%
E52Nimzo-Indian, 4.e3, main line with ...b644440.1%53.2%
B40Sicilian, Anderssen variation75640.1%57.7%
C95Ruy Lopez, closed, Breyer, Borisenko variation71440.1%56.4%
A49King's Indian, fianchetto without c4105940.0%56.8%
A09Reti opening57040.0%53.2%
C50Giuoco Piano56040.0%52.7%
C17French, Winawer, advance, Bogolyubov variation35040.0%51.1%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)23540.0%54.5%
A28English, Nenarokov variation12040.0%51.7%
E08Catalan, closed, 7.Qc29040.0%60.0%
B10Caro-Kann, Goldman (Spielmann) variation7540.0%49.3%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
A92Dutch defence, Alekhine variation3540.0%62.9%
D94Gruenfeld with e3 Bd32040.0%55.0%
C51Evans gambit, Morphy attack2040.0%55.0%
C20KP, Mengarini's opening2040.0%25.0%
C45Scotch, Tartakower variation1540.0%46.7%
E23Nimzo-Indian, Spielmann, Karlsbad variation1540.0%40.0%
C49Four knights, Janowski variation1540.0%60.0%
B40Sicilian, Pin variation (Sicilian counter-attack)1540.0%73.3%
D51QGD, Manhattan variation1040.0%70.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1040.0%60.0%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence540.0%40.0%
D32QGD, Tarrasch defence, Tarrasch gambit540.0%20.0%
E78King's Indian, Four pawns attack, with Be2 and Nf3540.0%60.0%
C56Two knights defence, Canal variation540.0%40.0%
C46Three knights, Steinitz, Rosenthal variation540.0%40.0%
D50QGD, Been-Koomen variation540.0%20.0%
A66Benoni, pawn storm variation540.0%60.0%
C61Ruy Lopez, Bird's defence, Paulsen variation540.0%60.0%
E16Queen's Indian, Capablanca variation34839.9%56.5%
D15QGD Slav, 4.Nc3371039.9%54.9%
E14Queen's Indian, 4.e3165239.9%53.4%
D31QGD, semi-Slav95839.9%54.9%
A25English, closed, 5.Rb142439.9%52.5%
D10QGD Slav defence, Alekhine variation25139.8%55.4%
A30English, symmetrical variation286439.8%54.6%
D86Gruenfeld, exchange, Simagin's improved variation10339.8%51.0%
A28English, four knights, Marini variation78439.8%50.9%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit19639.8%57.1%
A76Benoni, classical, 9...Re89839.8%63.8%
B93Sicilian, Najdorf, 6.f4153839.8%50.7%
C50Hungarian defence16639.8%49.4%
B42Sicilian, Kan, Gipslis variation7839.7%63.5%
E29Nimzo-Indian, Saemisch, main line7839.7%55.8%
D48QGD semi-Slav, Meran, Reynolds' variation75039.7%56.1%
C45Scotch, Potter variation51139.7%51.4%
A57Benko gambit, Zaitsev system7339.7%48.6%
C65Ruy Lopez, Berlin defence269639.7%51.1%
B56Sicilian152339.7%53.3%
B44Sicilian, Szen (`anti-Taimanov') variation78839.7%53.9%
A70Benoni, classical with e4 and Nf356939.7%59.4%
B25Sicilian, closed, 6.f441339.7%51.1%
A20English, Nimzovich variation6839.7%58.1%
E26Nimzo-Indian, Saemisch variation6839.7%58.1%
B13Caro-Kann, exchange variation75139.7%51.7%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)118239.7%48.9%
C29Vienna gambit18439.7%46.5%
B07Pirc, Ufimtsev-Pytel variation36339.7%59.5%
E11Bogo-Indian defence144239.7%54.8%
A47Queen's Indian defence47939.7%52.4%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation115039.7%56.7%
B19Caro-Kann, classical, Spassky variation263839.7%56.7%
D99Gruenfeld defence, Smyslov, main line16439.6%58.8%
C88Ruy Lopez, closed, anti-Marshall 8.a4150939.6%53.6%
A15English, 1...Nf6 (Anglo-Indian defense)108839.6%55.2%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation23839.5%53.8%
E46Nimzo-Indian, Simagin variation11939.5%49.2%
C93Ruy Lopez, closed, Smyslov defence15739.5%57.3%
C48Four knights, Rubinstein counter-gambit101839.5%52.8%
B09Pirc, Austrian attack, 6.Bd3112239.5%59.9%
E60King's Indian, 3.Nf3265739.5%57.7%
B40Sicilian defence473439.5%53.9%
B44Sicilian, Szen, hedgehog variation22839.5%50.9%
B00St. George (Baker) defence3839.5%59.2%
D47QGD semi-Slav, Meran, Wade variation682039.5%53.6%
A36English, symmetrical, Botvinnik system reversed7139.4%53.5%
A34English, symmetrical variation94639.4%54.5%
A17English, Nimzo-English opening169539.4%53.5%
B03Alekhine's defence, exchange variation60939.4%57.6%
E73King's Indian, 5.Be23339.4%56.1%
A57Benko gambit half accepted78239.4%57.5%
D17QGD Slav, Krause attack66839.4%58.3%
B72Sicilian, dragon, classical attack9439.4%51.6%
A45Queen's pawn game207639.4%54.6%
D03Torre attack (Tartakower variation)64339.3%50.6%
A48King's Indian, London system102239.3%53.2%
C77Ruy Lopez, Morphy defence19639.3%55.9%
C39KGA, Kieseritsky, Berlin defence5639.3%41.1%
D02Queen's bishop game120239.3%53.1%
A90Dutch defence97339.3%61.2%
D91Gruenfeld, 5.Bg585939.2%48.3%
C64Ruy Lopez, classical defence, Benelux variation 38539.2%56.5%
C02French, advance, Wade variation32939.2%57.0%
A87Dutch, Leningrad, main variation32439.2%55.7%
B57Sicilian, Sozin, Benko variation125839.2%51.7%
B04Alekhine's defence, modern, Schmid variation14839.2%61.5%
A88Dutch, Leningrad, main variation with c683039.2%57.4%
C52Evans gambit28139.1%47.0%
D52QGD, Cambridge Springs defence, Yugoslav variation37339.1%56.8%
B62Sicilian, Richter-Rauzer, 6...e64639.1%58.7%
C38King's knight's gambit2339.1%28.3%
B32Sicilian, Nimzovich variation2339.1%54.3%
E51Nimzo-Indian, 4.e3, Ragozin variation2339.1%67.4%
C34KGA, Schallop defence2339.1%67.4%
B15Caro-Kann, Alekhine gambit2339.1%50.0%
E39Nimzo-Indian, classical, Pirc variation92939.1%55.3%
C91Ruy Lopez, closed, 9.d4120339.1%57.9%
A00Polish (Sokolsky) opening165939.1%48.8%
B15Caro-Kann, Gurgenidze system29739.1%57.2%
A84Dutch defence53839.0%56.3%
A22English, Bremen, Smyslov system146839.0%48.5%
C50Giuoco Pianissimo154039.0%53.1%
D19QGD Slav, Dutch variation128939.0%57.6%
D52QGD, Cambridge Springs defence, Rubinstein variation15939.0%55.3%
D47QGD semi-Slav, 7.Bc45939.0%53.4%
B09Pirc, Austrian attack, dragon formation76239.0%58.2%
D31QGD, semi-Slav, Noteboom variation24939.0%51.6%
B95Sicilian, Najdorf, 6...e6103239.0%49.7%
B96Sicilian, Najdorf, Polugayevsky variation9538.9%54.2%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation13138.9%64.5%
E17Queen's Indian, anti-Queen's Indian system28838.9%53.5%
C17French, Winawer, advance, Russian variation5438.9%52.8%
C41Philidor, Hanham variation3638.9%61.1%
C41Philidor, Nimzovich (Jaenisch) variation1838.9%47.2%
A33English, symmetrical, Geller variation58938.9%54.2%
D90Gruenfeld, Flohr variation26538.9%55.7%
B28Sicilian, O'Kelly variation32738.8%56.4%
B32Sicilian defence77038.8%56.0%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack154838.8%55.6%
A53Old Indian defence94338.8%56.3%
D16QGD Slav accepted, Alapin variation16538.8%66.7%
E20Nimzo-Indian, Kmoch variation71238.8%53.7%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f425838.8%54.3%
C41Philidor, Improved Hanham variation93438.8%56.7%
B43Sicilian, Kan, 5.Nc3273538.7%56.5%
A36English, ultra-symmetrical variation122738.7%52.7%
C20KP, Indian opening6238.7%43.5%
A43Old Benoni, Mujannah formation3138.7%67.7%
A48King's Indian, Torre attack153238.7%49.5%
B08Pirc, classical system, 5.Be2220538.7%56.9%
D25QGA, Janowsky-Larsen variation34938.7%57.7%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)186238.7%56.3%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation7538.7%55.3%
E68King's Indian, fianchetto, classical variation, 8.e4119538.7%59.9%
C42Petrov three knights game25138.6%57.2%
B84Sicilian, Scheveningen (Paulsen), classical variation358738.6%51.9%
C55Two knights defence (Modern bishop's opening)124038.6%56.2%
B33Sicilian, Sveshnikov variation133138.6%50.8%
C50Giuoco Piano, four knights variation5738.6%52.6%
D89Gruenfeld, Spassky variation, main line, 13.Bd37038.6%49.3%
C00French, Two knights variation22338.6%51.1%
A20English, Nimzovich, Flohr variation15338.6%45.4%
E11Bogo-Indian defence, Nimzovich variation139838.6%57.8%
C73Ruy Lopez, modern Steinitz defence, Alapin variation8338.6%54.2%
A48King's Indian, East Indian defence79238.5%51.8%
C11French, Steinitz variation95338.5%54.7%
B25Sicilian, closed23938.5%48.5%
C53Giuoco Piano192438.5%52.8%
A18English, Mikenas-Carls, Flohr variation31238.5%58.7%
C23Bishop's opening, Classical variation5238.5%53.8%
E29Nimzo-Indian, Saemisch, Capablanca variation2638.5%42.3%
A45Canard opening1338.5%26.9%
C11French, Henneberger variation1338.5%50.0%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd240638.4%61.1%
A04Reti opening726838.4%54.3%
A34English, symmetrical, Rubinstein system37538.4%52.8%
A40Queen's pawn, Franco-Indian (Keres) defence97738.4%56.2%
B46Sicilian, Taimanov variation305538.4%55.1%
D45QGD semi-Slav, 5...Nd752238.3%53.6%
D86Gruenfeld, exchange, Simagin's lesser variation4738.3%59.6%
C80Ruy Lopez, open, 8...Be6122838.3%43.1%
E61King's Indian, Smyslov system8138.3%53.7%
B45Sicilian, Taimanov variation184838.3%56.6%
A54Old Indian, Ukrainian variation, 4.Nf320438.2%57.4%
D70Neo-Gruenfeld defence20438.2%55.4%
B33Sicilian, Pelikan, Bird variation22538.2%64.0%
B06Robatsch defence, Two knights, Suttles variation99738.2%58.4%
A81Dutch defence313838.2%56.8%
A50Kevitz-Trajkovich defence33538.2%56.7%
D12QGD Slav, exchange variation8938.2%49.4%
B12Caro-Kann, advance variation957338.2%56.3%
A20English opening534638.2%54.4%
E17Queen's Indian, Opovcensky variation64738.2%54.5%
B12Caro-Kann, Tartakower (fantasy) variation60038.2%54.6%
A55Old Indian, main line41438.2%58.5%
A26English, Botvinnik system30438.2%52.6%
C15French, Winawer, Alekhine (Maroczy) gambit17338.2%55.5%
B10Caro-Kann, Two knights variation31238.1%59.8%
C22Centre game39638.1%46.1%
B23Sicilian, closed294838.1%51.6%
A06Reti opening58838.1%53.6%
C22Centre game, Paulsen attack18938.1%51.3%
C12French, MacCutcheon, Chigorin variation6338.1%47.6%
D70Neo-Gruenfeld (Kemeri) defence4238.1%54.8%
C41Philidor, Hanham, Steiner variation2138.1%66.7%
B08Pirc, classical, h3 system38138.1%59.2%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation62338.0%54.2%
C23Bishop's opening16338.0%54.0%
A17English opening21338.0%53.3%
C59Two knights defence19238.0%49.2%
A10English opening253638.0%55.0%
E76King's Indian, Four pawns attack22138.0%59.7%
C74Ruy Lopez, modern Steinitz defence5038.0%57.0%
A69Benoni, four pawns attack, main line7938.0%46.8%
B08Pirc, classical (two knights) system51938.0%58.5%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation27438.0%58.8%
A50Queen's pawn game57738.0%55.9%
C96Ruy Lopez, closed, Keres (...Nd7) defence20337.9%65.3%
A03Bird's opening, Williams gambit2937.9%63.8%
E76King's Indian, Four pawns attack, dynamic line16137.9%51.9%
A10English, Adorjan defence42537.9%53.8%
E63King's Indian, fianchetto, Panno variation211337.9%57.1%
D46QGD semi-Slav, 6.Bd33737.8%62.2%
D23Queen's gambit accepted3737.8%54.1%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)422337.8%56.2%
C62Ruy Lopez, old Steinitz defence26237.8%54.8%
E44Nimzo-Indian, Fischer variation, 5.Ne235237.8%55.0%
C80Ruy Lopez, open, 6.d44537.8%45.6%
A90Dutch-Indian, Alekhine variation4537.8%56.7%
A05Reti, King's Indian attack, Reti-Smyslov variation5337.7%56.6%
E38Nimzo-Indian, classical, 4...c557837.7%60.4%
C06French, Tarrasch, closed variation, main line98937.7%59.6%
B10Caro-Kann, closed (Breyer) variation65537.7%52.7%
A12English, Caro-Kann defensive system19137.7%47.6%
C90Ruy Lopez, closed, Suetin variation6937.7%56.5%
B54Sicilian70137.7%55.2%
B90Sicilian, Najdorf, Adams attack109437.7%51.5%
A37English, symmetrical, Botvinnik system reversed69637.6%50.6%
C50Giuoco Pianissimo, Italian four knights variation37237.6%51.3%
D00Queen's pawn, Mason variation, Steinitz counter-gambit43137.6%49.4%
C22Centre game, Berger variation35437.6%54.7%
A28English, four knights, Capablanca variation41837.6%54.4%
B07Pirc, 150 attack22937.6%60.7%
E16Queen's Indian, Yates variation33337.5%59.0%
B07Pirc defence158837.5%56.3%
E84King's Indian, Saemisch, Panno main line40537.5%52.6%
B24Sicilian, closed40537.5%49.6%
A08Reti, King's Indian attack, French variation25637.5%48.4%
C12French, MacCutcheon, Janowski variation13637.5%57.7%
A41Robatsch defence, Rossolimo variation12837.5%51.6%
D97Gruenfeld, Russian, Byrne (Simagin) variation12037.5%58.8%
B05Alekhine's defence, modern, Flohr variation12037.5%63.8%
C35KGA, Cunningham defence5637.5%49.1%
C78Ruy Lopez, ...b5 & ...d64837.5%54.2%
C57Two knights defence, Wilkes Barre (Traxler) variation4837.5%54.2%
C37KGA, Blachly gambit2437.5%31.3%
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%
C13French, classical, Tartakower variation2437.5%47.9%
C82Ruy Lopez, open, Berlin variation1637.5%68.8%
C45Scotch, Blumenfeld attack1637.5%31.3%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
C68Ruy Lopez, exchange, Alekhine variation1637.5%43.8%
B74Sicilian, dragon, classical, Spielmann variation837.5%56.3%
C41Philidor, Philidor counter-gambit837.5%56.3%
C13French, classical, Frankfurt variation837.5%81.3%
A58Benko gambit, Nd2 variation837.5%56.3%
C44Scotch, Goering gambit, Bardeleben variation837.5%43.8%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C30KGD, Mafia defence837.5%68.8%
C38KGA, Hanstein gambit837.5%43.8%
B00Lemming defence837.5%56.3%
C17French, Winawer, advance, Rauzer variation837.5%68.8%
C00French, King's Indian attack207037.4%51.2%
E61King's Indian defence, 3.Nc378837.4%55.6%
A26English, closed system29737.4%51.7%
A40Modern defence87037.4%57.8%
B42Sicilian, Kan, 5.Bd3173537.3%58.2%
D44QGD semi-Slav, Botvinnik system (anti-Meran)7537.3%56.0%
A40Queen's pawn203137.3%55.1%
A01Nimzovich-Larsen attack, classical variation105137.3%50.0%
B48Sicilian, Taimanov variation307837.3%56.0%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7109137.2%56.1%
A05Reti opening327637.2%53.3%
A46Queen's pawn, Torre attack126437.2%51.7%
A36English, symmetrical variation11337.2%54.9%
B89Sicilian, Sozin, 7.Be399337.2%50.7%
D17QGD Slav, Carlsbad variation47137.2%60.4%
B06Robatsch defence63037.1%58.1%
C47Four knights, Scotch, Krause variation3537.1%64.3%
B27Sicilian, Quinteros variation3537.1%64.3%
C01French, exchange, Svenonius variation3537.1%55.7%
E94King's Indian, orthodox variation97637.1%54.1%
A01Nimzovich-Larsen attack63937.1%52.5%
A86Dutch with c4 & g38937.1%64.6%
B56Sicilian, Venice attack5437.0%64.8%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation5437.0%51.9%
C88Ruy Lopez, closed, 8.c32737.0%63.0%
D16QGD Slav, Steiner variation20837.0%63.7%
E15Queen's Indian, Rubinstein variation11937.0%58.8%
B58Sicilian, Boleslavsky, Louma variation4637.0%57.6%
B54Sicilian, Prins (Moscow) variation39836.9%56.4%
A57Benko gambit62136.9%56.1%
A42Pterodactyl defence32036.9%63.8%
B02Alekhine's defence, Saemisch attack25536.9%49.4%
C41Philidor, exchange variation70336.8%58.4%
A07Reti, King's Indian attack, Pachman system11436.8%52.6%
D00Queen's pawn, stonewall attack5736.8%43.0%
A78Benoni, classical with ...Re8 and ...Na63836.8%57.9%
C52Evans gambit, Richardson attack1936.8%28.9%
C57Two knights defence, Lolli attack1936.8%55.3%
B41Sicilian, Kan, Maroczy bind - Bronstein variation1936.8%28.9%
B58Sicilian, Boleslavsky variation42936.8%48.0%
B13Caro-Kann, exchange, Rubinstein variation12536.8%52.8%
A17English, Queens Indian formation22336.8%60.1%
D00Levitsky attack (Queen's bishop attack)183636.8%52.4%
C90Ruy Lopez, closed (with ...d6)118436.7%51.4%
A22English opening70536.7%51.1%
C44Scotch gambit, Benima defence4936.7%55.1%
B07Robatsch defence, Geller's system59136.7%57.6%
A97Dutch, Ilyin-Genevsky, Winter variation7936.7%63.9%
C49Four knights, symmetrical, Metger unpin32736.7%51.1%
A13English opening182636.7%51.5%
D46QGD semi-Slav, Romih variation16936.7%63.9%
B00King's pawn opening134736.7%57.5%
E73King's Indian, Semi-Averbakh system3036.7%51.7%
D25QGA, 4.e310136.6%55.9%
A43Old Benoni, Franco-Benoni defence10136.6%58.9%
B90Sicilian, Najdorf255836.6%53.5%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation28736.6%60.8%
E10Blumenfeld counter-gambit, Spielmann variation8236.6%57.3%
D52QGD, Cambridge Springs defence, 7.cd4136.6%52.4%
C86Ruy Lopez, Worrall attack, sharp line21636.6%53.5%
B06Robatsch defence, Gurgenidze variation5236.5%60.6%
D06QGD, Grau (Sahovic) defence11536.5%60.9%
E07Catalan, closed, 6...Nbd76336.5%51.6%
B06Robatsch (modern) defence550336.5%56.1%
A47Queen's Indian, Marienbad system7436.5%56.1%
B34Sicilian, accelerated fianchetto, modern variation32936.5%52.0%
E53Nimzo-Indian, 4.e3, Keres variation9636.5%46.4%
B87Sicilian, Sozin with ...a6 and ...b575236.4%51.2%
D05Queen's pawn game54136.4%52.0%
A02Bird's opening299736.4%48.7%
A28English, four knights, 4.e396536.4%51.7%
A45Trompovsky attack (Ruth, Opovcensky opening)367636.4%52.2%
C58Two knights defence17636.4%55.7%
A16English, Anglo-Gruenfeld defense, Korchnoi variation8836.4%58.0%
B02Alekhine's defence, Maroczy variation8836.4%58.0%
B84Sicilian, Scheveningen, classical, Nd7 system6636.4%50.0%
C67Ruy Lopez, Berlin defence, Cordel variation5536.4%58.2%
C88Ruy Lopez, closed, Balla variation4436.4%54.5%
C14French, classical, Rubinstein variation3336.4%60.6%
C20King's pawn game2236.4%54.5%
D32QGD, Tarrasch defence, 4.cd ed2236.4%54.5%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
C34King's knight's gambit1136.4%27.3%
E83King's Indian, Saemisch, Ruban variation1136.4%45.5%
C00French, Reversed Philidor formation1136.4%63.6%
B20Sicilian, wing gambit, Carlsbad variation1136.4%45.5%
A22English, Bellon gambit1136.4%63.6%
E43Nimzo-Indian, Fischer variation56736.3%53.8%
E94King's Indian, orthodox, Donner variation17936.3%60.1%
E91King's Indian, Kazakh variation29236.3%55.5%
E60King's Indian defence65636.3%56.7%
C41Philidor's defence23236.2%59.9%
C65Ruy Lopez, Berlin defence, Beverwijk variation48936.2%57.4%
C50King's pawn game21036.2%59.5%
A82Dutch, Staunton gambit10536.2%35.2%
B42Sicilian, Kan, Polugaievsky variation129636.2%54.3%
D67QGD, Orthodox defence, Bd3 line, 11.O-O4736.2%64.9%
E93King's Indian, Petrosian system, main line8336.1%50.6%
A89Dutch, Leningrad, main variation with Nc636836.1%64.0%
C46Three knights game11936.1%55.0%
D01Richter-Veresov attack42936.1%46.3%
C02French, advance, Euwe variation127936.1%54.1%
C51Evans gambit, 5...Be73636.1%56.9%
A25English, closed, Hort variation3636.1%54.2%
C53Giuoco Piano, centre-holding variation3636.1%59.7%
D52QGD, Cambridge Springs defence, Capablanca variation3636.1%59.7%
A62Benoni, fianchetto variation70736.1%56.1%
A41Queen's Pawn189136.1%54.3%
B10Caro-Kann defence206136.1%53.2%
B20Sicilian defence200036.0%50.7%
D07QGD, Chigorin defence72436.0%57.1%
B83Sicilian, modern Scheveningen, main line with Nb38636.0%57.6%
B23Sicilian, Grand Prix attack66936.0%49.7%
D60QGD, Orthodox defence10036.0%56.0%
B85Sicilian, Scheveningen, classical, Maroczy system2536.0%54.0%
E92King's Indian, classical variation2536.0%38.0%
C45Scotch, Horwitz attack2536.0%66.0%
A03Bird's opening299635.9%47.7%
A16English opening124135.9%53.0%
B12Caro-Kann defence19235.9%51.8%
C00French, Pelikan variation6435.9%52.3%
B02Alekhine's defence56035.9%54.9%
A83Dutch, Staunton gambit, Staunton's line13135.9%50.0%
B33Sicilian, Pelikan, Chelyabinsk variation205735.9%57.3%
E30Nimzo-Indian, Leningrad variation59435.9%47.9%
A84Dutch defence, Rubinstein variation26535.8%58.7%
B90Sicilian, Najdorf, Lipnitzky attack91535.8%49.8%
B41Sicilian, Kan, Maroczy bind (Reti variation)43835.8%57.4%
A00Dunst (Sleipner, Heinrichsen) opening162735.8%49.6%
B94Sicilian, Najdorf, 6.Bg572635.8%53.4%
B21Sicilian, Grand Prix attack148135.8%52.7%
B03Alekhine's defence, four pawns attack, 7.Be310935.8%67.4%
C12French, MacCutcheon, Lasker variation, 8...g637235.8%59.5%
B07Pirc, Sveshnikov system29435.7%52.6%
A01Nimzovich-Larsen attack, English variation18235.7%48.6%
D48QGD semi-Slav, Meran, old main line11235.7%52.7%
B62Sicilian, Richter-Rauzer, Keres variation7035.7%52.1%
C67Ruy Lopez, open Berlin defence, 5...Be77035.7%53.6%
E85King's Indian, Saemisch, orthodox variation5635.7%51.8%
C53Giuoco Piano, close variation2835.7%71.4%
D40QGD, Semi-Tarrasch defence, Pillsbury variation2835.7%57.1%
C66Ruy Lopez, closed Berlin defence, Bernstein variation1435.7%53.6%
B13Caro-Kann, Panov-Botvinnik, Herzog defence1435.7%46.4%
D33QGD, Tarrasch, Schlechter-Rubinstein system1435.7%53.6%
C65Ruy Lopez, Berlin defence, Duras variation1435.7%53.6%
C44Scotch, Lolli variation1435.7%53.6%
D98Gruenfeld, Russian, Keres variation1435.7%46.4%
D63QGD, Orthodox defence, 7.Rc121335.7%57.7%
E95King's Indian, orthodox, 7...Nbd7, 8.Re132835.7%55.6%
B03Alekhine's defence, four pawns attack, Trifunovic variation5935.6%68.6%
E13Queen's Indian, 4.Nc3, main line20835.6%52.4%
B42Sicilian, Kan, Swiss cheese variation25335.6%61.3%
C19French, Winawer, advance, 6...Ne729835.6%57.0%
C90Ruy Lopez, closed, Pilnik variation80735.6%51.9%
E40Nimzo-Indian, 4.e3, Taimanov variation7635.5%62.5%
A80Dutch192635.5%54.6%
B63Sicilian, Richter-Rauzer, Rauzer attack13835.5%57.6%
B60Sicilian, Richter-Rauzer61735.5%58.1%
C11French, Steinitz, Boleslavsky variation327735.5%57.3%
C14French, classical, Steinitz variation68235.5%57.8%
E67King's Indian, fianchetto with ...Nd79335.5%55.4%
E62King's Indian, fianchetto variation6235.5%50.0%
E15Queen's Indian, Buerger variation3135.5%59.7%
C44King's pawn game7935.4%51.9%
B33Sicilian defence42935.4%54.1%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation94335.4%55.0%
C44Ponziani, Leonhardt variation9635.4%47.9%
E46Nimzo-Indian, 4.e3 O-O6535.4%57.7%
A85Dutch with c4 & Nc362235.4%54.3%
E62King's Indian, fianchetto, Simagin variation8235.4%64.0%
D20QGA, Linares variation8235.4%61.6%
A43Old Benoni defence141635.3%58.5%
C86Ruy Lopez, Worrall attack, solid line6835.3%47.1%
A12English, Capablanca's variation6835.3%47.1%
A41Old Indian, Tartakower (Wade) variation90235.3%61.0%
D55QGD, 6.Nf312235.2%57.8%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation31535.2%51.6%
B82Sicilian, Scheveningen, Tal variation10535.2%61.4%
B23Sicilian, chameleon variation58235.2%58.2%
B90Sicilian, Najdorf, Byrne (English) attack1875635.2%53.3%
C51Evans gambit, Stone-Ware variation19635.2%50.3%
E74King's Indian, Averbakh, 6...c525335.2%55.5%
E64King's Indian, fianchetto, Yugoslav system9135.2%59.3%
D31QGD, semi-Slav, Abrahams variation12835.2%44.1%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack124235.1%58.2%
C25Vienna, Paulsen variation8035.0%57.5%
C45Scotch, Steinitz variation4035.0%55.0%
C46Three knights, Schlechter variation2035.0%52.5%
C95Ruy Lopez, closed, Breyer, Simagin variation2035.0%57.5%
C44Ponziani opening31234.9%45.7%
D44QGD semi-Slav, anti-Meran gambit75934.9%58.3%
C83Ruy Lopez, open, 9...Be7, 10.Re14334.9%54.7%
A04Reti v Dutch97534.9%59.2%
A35English, symmetrical variation21834.9%51.8%
C16French, Winawer, advance variation74134.8%57.6%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation20434.8%61.5%
A28English, four knights, Nimzovich variation48334.8%54.0%
B80Sicilian, Scheveningen, fianchetto variation18434.8%50.0%
A99Dutch, Ilyin-Genevsky variation with b39234.8%64.1%
E24Nimzo-Indian, Saemisch, Botvinnik variation4634.8%41.3%
C94Ruy Lopez, closed, Breyer defence4634.8%58.7%
E71King's Indian, Makagonov system (5.h3)68534.7%59.9%
D00Queen's pawn, Chigorin variation31134.7%52.1%
A02Bird, From gambit15034.7%50.0%
A96Dutch, classical variation20534.6%62.2%
B76Sicilian, dragon, Yugoslav attack, 7...O-O31234.6%52.9%
A07Reti, King's Indian attack, Keres variation68734.5%54.1%
C67Ruy Lopez, Berlin defence, Winawer attack2934.5%69.0%
B04Alekhine's defence, modern, fianchetto variation65634.5%57.6%
C25Vienna game24734.4%60.9%
D72Neo-Gruenfeld, 5.cd, main line18634.4%60.8%
A27English, three knights system51234.4%52.7%
A45Paleface attack3234.4%45.3%
B81Sicilian, Scheveningen, Keres attack218534.4%59.6%
A25English, Sicilian reversed71634.4%52.8%
A80Dutch, Krejcik gambit26534.3%54.2%
D16QGD Slav, Smyslov variation6734.3%59.0%
A68Benoni, four pawns attack7334.2%56.8%
E62King's Indian, fianchetto with ...Nc622834.2%54.8%
A41Modern defence7634.2%56.6%
A36English, symmetrical, Botvinnik system15534.2%51.3%
B00Owen defence28134.2%61.6%
B72Sicilian, dragon, 6.Be38234.1%53.7%
A56Benoni defence59234.1%59.6%
E60King's Indian, Anti-Gruenfeld4434.1%60.2%
E94King's Indian, orthodox, 7...Nbd788634.1%60.3%
A25English, closed system72534.1%54.0%
A58Benko gambit accepted66734.0%58.5%
A80Dutch, 2.Bg5 variation91734.0%54.3%
A91Dutch defence10034.0%52.0%
B96Sicilian, Najdorf, 7.f4122434.0%51.0%
E81King's Indian, Saemisch, 5...O-O199634.0%55.2%
E09Catalan, closed, main line21534.0%60.2%
E80King's Indian, Saemisch variation32434.0%59.0%
E92King's Indian, Gligoric-Taimanov system142933.9%58.7%
E72King's Indian with e4 & g35633.9%56.3%
C00French defence51033.9%57.4%
A21English opening138333.9%54.6%
A42Modern defence, Averbakh system38433.9%58.9%
A00Mieses opening13333.8%53.0%
A63Benoni, fianchetto, 9...Nbd77433.8%65.5%
C02French, advance, Paulsen attack171433.8%54.8%
B06Robatsch defence, Pseudo-Austrian attack47433.8%54.6%
A16English, Anglo-Gruenfeld, Czech defense16633.7%63.9%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation16933.7%57.1%
B03Alekhine's defence8633.7%62.2%
D07QGD, Chigorin defence, Janowski variation8933.7%62.9%
C02French, advance, Milner-Barry gambit9833.7%46.4%
A93Dutch, stonewall, Botwinnik variation10133.7%61.4%
E66King's Indian, fianchetto, Yugoslav Panno30633.7%56.7%
B77Sicilian, dragon, Yugoslav attack, 9.Bc410433.7%49.5%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6563133.7%51.4%
C11French, Steinitz, Gledhill attack11633.6%54.7%
C19French, Winawer, advance, poisoned pawn variation245633.6%60.9%
B06Robatsch defence, Two knights variation30733.6%61.4%
A86Dutch, Leningrad variation15533.5%56.1%
C10French, Paulsen variation63533.5%58.3%
B76Sicilian, dragon, Yugoslav attack, Rauser variation90733.5%64.6%
B04Alekhine's defence, modern variation22733.5%60.8%
E41Nimzo-Indian, e3, Huebner variation47533.5%51.5%
C18French, Winawer, classical variation28433.5%58.3%
E73King's Indian, Averbakh system93333.4%54.8%
B00KP, Nimzovich defence47633.4%60.2%
B10Caro-Kann, anti-Caro-Kann defence52433.4%60.6%
B89Sicilian, Velimirovic attack71633.4%51.3%
B07Pirc, Byrne variation33633.3%57.1%
C40Latvian counter-gambit7833.3%61.5%
C33KGA, bishop's gambit5433.3%46.3%
B12Caro-Kann, advance, Short variation4833.3%52.1%
B04Alekhine's defence, modern, Keres variation4533.3%72.2%
C36KGA, Abbazia defence (classical defence, modern defence[!])4533.3%67.8%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)4233.3%52.4%
C44Ponziani, Reti variation2133.3%59.5%
A00Novosibirsk opening2133.3%50.0%
B24Sicilian, closed, Smyslov variation2133.3%54.8%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1533.3%43.3%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C68Ruy Lopez, exchange, Romanovsky variation1233.3%50.0%
A82Dutch, Balogh defence1233.3%83.3%
C20KP, Lopez opening1233.3%33.3%
C37KGA, Quaade gambit933.3%27.8%
C14French, classical, Pollock variation933.3%38.9%
C58Two knights defence, Paoli variation933.3%72.2%
C57Two knights defence, Fritz, Gruber variation633.3%50.0%
C58Two knights defence, Kieseritsky variation633.3%66.7%
C29Vienna gambit, Steinitz variation633.3%33.3%
C20KP, Napoleon's opening633.3%50.0%
C43Petrov, Urusov gambit633.3%83.3%
D32QGD, Tarrasch defence, Marshall gambit633.3%50.0%
D55QGD, Neo-orthodox variation633.3%50.0%
A59Benko gambit, 7.e4633.3%50.0%
A00Grob, spike attack633.3%33.3%
A46Queen's pawn, Torre attack, Wagner gambit333.3%83.3%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd333.3%16.7%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit333.3%50.0%
C50Rousseau gambit333.3%50.0%
A00Lasker simul special333.3%50.0%
A83Dutch, Staunton gambit, Alekhine variation333.3%50.0%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
C33KGA, bishop's gambit, Boden defence333.3%16.7%
C01French, exchange, Bogolyubov variation333.3%50.0%
C32KGD, Falkbeer, Keres variation333.3%83.3%
C37KGA, Cochrane gambit333.3%50.0%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C33KGA, Breyer gambit333.3%50.0%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C53Giuoco Piano, Mestel variation333.3%83.3%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7267733.3%55.5%
E70King's Indian, 4.e487733.3%58.6%
E91King's Indian, 6.Be258633.3%64.9%
E69King's Indian, fianchetto, classical main line42733.3%62.1%
C02French, advance, Steinitz variation35833.2%54.1%
E90King's Indian, 5.Nf381433.2%56.6%
A01Nimzovich-Larsen attack, Indian variation25733.1%48.4%
B01Scandinavian defence, Lasker variation11533.0%64.3%
E70King's Indian, accelerated Averbakh system10933.0%55.0%
B97Sicilian, Najdorf, 7...Qb6147833.0%46.1%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)392933.0%56.1%
C02French, advance variation113133.0%55.7%
A10English, Anglo-Dutch defense64933.0%52.7%
E92King's Indian, Petrosian system, Stein variation55632.9%53.9%
A53Old Indian, Janowski variation13432.8%56.7%
B82Sicilian, Scheveningen, 6.f445732.8%57.8%
C96Ruy Lopez, closed (10...c5)63432.8%64.7%
E88King's Indian, Saemisch, orthodox, 7.d5 c631132.8%58.2%
C58Two knights defence, Bogolyubov variation5532.7%45.5%
B26Sicilian, closed, 6.Be357532.7%49.9%
C00French, Chigorin variation77432.7%51.2%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation25732.7%58.8%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation53632.6%60.5%
E82King's Indian, Saemisch, double fianchetto variation9232.6%58.7%
B05Alekhine's defence, modern variation, 4...Bg459332.5%64.8%
B98Sicilian, Najdorf, 7...Be712632.5%54.4%
C69Ruy Lopez, exchange, Bronstein variation45232.5%50.3%
A09Reti accepted, Keres variation4032.5%68.8%
C27Boden-Kieseritsky gambit4032.5%31.3%
D10QGD Slav, Winawer counter-gambit14232.4%54.2%
C53Giuoco Piano, Bird's attack13932.4%49.3%
D15QGD Slav, Suechting variation13032.3%58.5%
D60QGD, Orthodox defence, Botvinnik variation6532.3%50.0%
B03Alekhine's defence, four pawns attack, fianchetto variation11832.2%59.3%
C44Inverted Hanham2832.1%41.1%
E89King's Indian, Saemisch, orthodox main line2832.1%62.5%
C34KGA, Bonsch-Osmolovsky variation2832.1%55.4%
C00French, Labourdonnais variation21832.1%45.4%
E77King's Indian, Four pawns attack10932.1%58.3%
B15Caro-Kann defence21532.1%51.9%
B00KP, Nimzovich defence, Bogolyubov variation10032.0%59.0%
B32Sicilian, Flohr variation21631.9%60.9%
A83Dutch, Staunton gambit, Chigorin variation7231.9%53.5%
C17French, Winawer, advance, 5.a336431.9%63.5%
A41Old Indian defence74431.9%55.0%
C16French, Winawer, Petrosian variation19831.8%55.3%
A16English, Anglo-Gruenfeld, Smyslov defense15431.8%55.5%
C34KGA, Fischer defence13231.8%46.2%
D30QGD Slav, Semmering variation2231.8%47.7%
A61Benoni defence47531.8%62.8%
B09Pirc, Austrian attack, 6.Be327731.8%57.8%
E00Neo-Indian (Seirawan) attack17031.8%52.9%
C39KGA, Kieseritsky, Berlin defence, 6.Bc44131.7%35.4%
B80Sicilian, Scheveningen, English variation13931.7%52.5%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf67931.6%61.4%
C98Ruy Lopez, closed, Chigorin, 12...Nc613631.6%61.4%
C02French, advance, Nimzovich system9531.6%45.3%
D83Gruenfeld, Gruenfeld gambit1931.6%68.4%
C41Philidor, Hanham, Schlechter variation1931.6%73.7%
D52QGD, Cambridge Springs defence, Argentine variation1931.6%42.1%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
C29Vienna gambit, Breyer variation9231.5%53.8%
B03Alekhine's defence, four pawns attack23831.5%65.3%
B75Sicilian, dragon, Yugoslav attack26731.5%58.8%
D30QGD, Capablanca variation3531.4%58.6%
E60Queen's pawn, Mengarini attack3531.4%61.4%
C05French, Tarrasch, closed variation98131.4%60.6%
D33QGD, Tarrasch, Prague variation6731.3%54.5%
C24Bishop's opening, Urusov gambit4831.3%36.5%
C44Ponziani, Romanishin variation1631.3%46.9%
B27Sicilian defence1631.3%53.1%
A00Battambang opening1631.3%46.9%
B00Reversed Grob (Borg/Basman defence/macho Grob)1631.3%84.4%
B16Caro-Kann, Bronstein-Larsen variation46231.2%61.5%
C05French, Tarrasch, Botvinnik variation4531.1%64.4%
C44Scotch gambit4531.1%62.2%
B71Sicilian, dragon, Levenfish variation4531.1%57.8%
C74Ruy Lopez, Siesta, Kopayev variation11931.1%54.2%
A44Semi-Benoni (`blockade variation')10331.1%62.1%
C97Ruy Lopez, closed, Chigorin defence74731.1%63.2%
B80Sicilian, Scheveningen variation121131.0%54.5%
D97Gruenfeld, Russian variation with e42931.0%60.3%
A00Clemenz (Mead's, Basman's or de Klerk's) opening2931.0%43.1%
B06Robatsch defence, three pawns attack13930.9%63.7%
A01Nimzovich-Larsen attack, Dutch variation1330.8%46.2%
C19French, Winawer, advance, positional main line102430.8%57.5%
D15QGD Slav, 5.e3 (Alekhine variation)16030.6%55.3%
A81Dutch defence, Blackburne variation4930.6%52.0%
A21English, Smyslov defence3630.6%59.7%
E30Nimzo-Indian, Leningrad, ...b5 gambit5930.5%47.5%
D44QGD semi-Slav, anti-Meran, Lilienthal variation16130.4%66.1%
A71Benoni, classical, 8.Bg59230.4%55.4%
D90Gruenfeld, Schlechter variation2330.4%41.3%
E31Nimzo-Indian, Leningrad, main line20430.4%51.0%
C13French, Albin-Alekhine-Chatard attack25730.4%55.3%
C92Ruy Lopez, closed, Kholmov variation11930.3%66.4%
A00Saragossa opening31230.1%49.4%
B98Sicilian, Najdorf variation33230.1%57.5%
B60Sicilian, Richter-Rauzer, Larsen variation14330.1%59.1%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation57630.0%62.2%
D25QGA, Flohr variation7030.0%66.4%
C88Ruy Lopez, closed, 7...d6, 8.d42030.0%20.0%
B03Alekhine's defence, Balogh variation1030.0%75.0%
A21English, Keres variation1030.0%45.0%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
C33KGA, bishop's gambit, Bogolyubov variation1030.0%25.0%
E72King's Indian, Pomar system1030.0%55.0%
A45Queen's pawn, Bronstein gambit1030.0%55.0%
C40Greco defence1030.0%45.0%
B79Sicilian, dragon, Yugoslav attack, 12.h41030.0%65.0%
E70King's Indian, Kramer system32429.9%57.9%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence15729.9%57.6%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be710729.9%57.0%
A03Bird's opening, Lasker variation9429.8%43.6%
A95Dutch, stonewall with Nc322529.8%58.4%
C04French, Tarrasch, Guimard main line33729.7%59.6%
A79Benoni, classical, 11.f35429.6%59.3%
C40Gunderam defence7129.6%69.7%
E40Nimzo-Indian, 4.e313229.5%58.0%
B20Sicilian, wing gambit, Marshall variation6129.5%55.7%
A21English, Troeger defence12929.5%54.3%
A13English, Kurajica defence6829.4%58.8%
E83King's Indian, Saemisch, 6...Nc66829.4%44.1%
B02Alekhine's defence, Spielmann variation1729.4%44.1%
C20Alapin's opening1729.4%67.6%
A92Dutch, stonewall with Nc31729.4%44.1%
B99Sicilian, Najdorf, 7...Be7 main line58729.3%53.2%
C59Two knights defence, Steinitz variation32829.3%48.2%
A04Reti, Pirc-Lisitsin gambit12329.3%49.6%
C30KGD, classical, 4.c34129.3%63.4%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c634129.0%53.2%
C03French, Tarrasch, Guimard variation6229.0%66.1%
C25Vienna gambit3129.0%53.2%
D15QGD Slav, Tolush-Geller gambit11828.8%40.7%
A45Blackmar-Diemer gambit18128.7%49.7%
E92King's Indian, Petrosian system9828.6%52.0%
A73Benoni, classical, 9.O-O4928.6%57.1%
A97Dutch, Ilyin-Genevsky variation4228.6%57.1%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation2828.6%50.0%
C30KGD, 2...Nf62828.6%60.7%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1428.6%64.3%
C67Ruy Lopez, open Berlin defence, Showalter variation1428.6%42.9%
E08Catalan, closed, Spassky gambit728.6%57.1%
B01Scandinavian, Kiel variation728.6%85.7%
A61Benoni, Nimzovich (knight's tour) variation35528.5%59.3%
C60Ruy Lopez (Spanish opening)3228.1%64.1%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O32428.1%54.5%
A56Czech Benoni defence29228.1%67.5%
D21QGA, Alekhine defense, Borisenko-Furman variation2528.0%50.0%
B98Sicilian, Najdorf, Browne variation4327.9%60.5%
C51Evans gambit, Paulsen variation1827.8%69.4%
C35KGA, Cunningham, Euwe defence1827.8%58.3%
A25English, closed system (without ...d6)11927.7%55.0%
C12French, MacCutcheon, Lasker variation20327.6%59.1%
A17English, Queens Indian, Romanishin variation5827.6%58.6%
A52Budapest, Alekhine, Abonyi variation5827.6%62.1%
A75Benoni, classical with ...a6 and 10...Bg45127.5%70.6%
C20KP, Patzer opening2227.3%31.8%
C40Latvian, Polerio variation2227.3%40.9%
A18English, Mikenas-Carls, Kevitz variation2227.3%45.5%
C53Giuoco Piano, LaBourdonnais variation1127.3%59.1%
E60King's Indian, 3.g3, counterthrust variation1127.3%31.8%
D99Gruenfeld defence, Smyslov, Yugoslav variation1127.3%50.0%
C13French, classical, Anderssen variation1127.3%40.9%
C42Petrov, Italian variation6327.0%50.0%
A65Benoni, 6.e431927.0%56.7%
C30KGD, classical variation5226.9%59.6%
C19French, Winawer, advance, Smyslov variation14926.8%61.1%
C18French, Winawer, advance variation45126.8%63.3%
E87King's Indian, Saemisch, orthodox, 7.d525026.8%59.4%
E17Queen's Indian, 5.Bg2 Be73026.7%43.3%
C12French, MacCutcheon, advance variation1526.7%20.0%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc1526.7%73.3%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne185226.6%61.0%
C12French, MacCutcheon, Dr. Olland (Dutch) variation5326.4%64.2%
A67Benoni, Taimanov variation22426.3%63.2%
B22Sicilian, 2.c3, Heidenfeld variation5726.3%44.7%
A98Dutch, Ilyin-Genevsky variation with Qc23826.3%52.6%
C70Ruy Lopez, Schliemann defence deferred1926.3%71.1%
C33KGA, bishop's gambit, Morphy variation1926.3%60.5%
A77Benoni, classical, 9...Re8, 10.Nd212226.2%68.0%
C57Two knights defence, Fegatello attack6526.2%53.1%
C58Two knights defence, Colman variation2326.1%34.8%
A06Reti, old Indian attack9325.8%48.4%
A51Budapest, Fajarowicz variation3525.7%61.4%
C60Ruy Lopez, Cozio defence, Paulsen variation3525.7%70.0%
B40Sicilian, Pin, Koch variation4325.6%80.2%
E28Nimzo-Indian, Saemisch variation9525.3%52.6%
D49QGD semi-Slav, Meran, Rabinovich variation6025.0%44.2%
E75King's Indian, Averbakh, main line5225.0%58.7%
A80Dutch, Korchnoi attack2025.0%42.5%
C52Evans gambit, compromised defence, Paulsen variation1625.0%62.5%
D50QGD, Semi-Tarrasch1225.0%54.2%
D97Gruenfeld, Russian, Levenfish variation1225.0%70.8%
B03Alekhine's defence, four pawns attack, 6...Nc61225.0%45.8%
C55Two knights, Max Lange attack, Marshall variation825.0%62.5%
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%
E79King's Indian, Four pawns attack, main line825.0%62.5%
C57Two knights defence, Fegatello attack, Leonhardt variation825.0%50.0%
C13French, classical, Anderssen-Richter variation825.0%50.0%
C59Two knights defence, Goering variation425.0%12.5%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
A00Ware (Meadow Hay) opening425.0%62.5%
A00Grob, Romford counter-gambit425.0%62.5%
D53QGD, Lasker variation425.0%87.5%
C12French, MacCutcheon, Duras variation425.0%62.5%
A00Global opening425.0%62.5%
B00KP, Colorado counter425.0%62.5%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit425.0%62.5%
A70Benoni, classical without 9.O-O425.0%37.5%
C14French, classical variation425.0%12.5%
D08QGD, Albin counter-gambit, Janowski variation425.0%62.5%
C43Petrov, modern attack, Bardeleben variation425.0%62.5%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
A56Benoni defence, Hromodka system38824.5%65.1%
A42Modern defence, Averbakh system, Kotov variation11224.1%65.6%
B53Sicilian, Chekhover, Zaitsev variation5424.1%58.3%
B72Sicilian, dragon, classical, Amsterdam variation4223.8%47.6%
B50Sicilian, wing gambit deferred2123.8%35.7%
E99King's Indian, orthodox, Aronin-Taimanov, main line2123.8%59.5%
C12French, MacCutcheon, Bernstein variation2123.8%59.5%
E12Queen's Indian, 4.Nc3, Botvinnik variation3823.7%46.1%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack5523.6%66.4%
A40Beefeater defence3423.5%67.6%
A66Benoni, Mikenas variation1723.5%47.1%
C39KGA, Kieseritsky, Rice gambit1723.5%29.4%
D01Richter-Veresov attack, Richter variation1723.5%52.9%
A60Benoni defence12423.4%63.3%
D00Blackmar-Diemer, Euwe defence2623.1%42.3%
B05Alekhine's defence, modern, Panov variation1323.1%57.7%
A52Budapest, Alekhine variation1323.1%65.4%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3122.6%56.5%
A61Benoni, Uhlmann variation19222.4%39.3%
D15QGD Slav, Slav gambit1822.2%55.6%
A54Old Indian, Dus-Khotimirsky variation922.2%44.4%
D33QGD, Tarrasch, Wagner variation922.2%66.7%
E03Catalan, open, Alekhine variation1421.4%39.3%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation1421.4%46.4%
C41Philidor, Larsen variation3321.2%68.2%
A28English, Bradley Beach variation5221.2%37.5%
C51Evans gambit, normal variation1921.1%47.4%
D44QGD semi-Slav, anti-Meran, Szabo variation2420.8%35.4%
C52Evans gambit, compromised defence4420.5%73.9%
D00Blackmar-Diemer gambit3020.0%40.0%
A43Old Benoni, Schmid's system2520.0%58.0%
C80Ruy Lopez, open, Friess attack1020.0%60.0%
B18Caro-Kann, classical, Maroczy attack1020.0%40.0%
C24Bishop's opening, Ponziani gambit520.0%10.0%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
B12de Bruycker defence520.0%70.0%
C31KGD, Falkbeer, Rubinstein variation520.0%70.0%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
B03Alekhine's defence, four pawns attack, Planinc variation520.0%30.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
C00Lengfellner system520.0%90.0%
D08QGD, Albin counter-gambit, Balogh variation520.0%90.0%
C33KGA, bishop's gambit, Bledow variation3119.4%32.3%
C40Latvian, Fraser defence1118.2%54.5%
C57Two knights defence1118.2%45.5%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1118.2%54.5%
C06French, Tarrasch, Leningrad variation1717.6%85.3%
C42Petrov, Cochrane gambit6317.5%32.5%
A04Reti, Lisitsin gambit deferred1816.7%75.0%
C52Evans gambit, Lasker defence616.7%25.0%
A82Dutch, Staunton gambit, Tartakower variation616.7%41.7%
C32KGD, Falkbeer, main line, 7...Bf5616.7%91.7%
C48Four knights, Marshall variation616.7%41.7%
C52Evans gambit, Levenfish variation616.7%25.0%
C47Four knights, Scotch variation1315.4%61.5%
C51Evans gambit declined2015.0%57.5%
A56Czech Benoni, King's Indian system4214.3%64.3%
A61Benoni, fianchetto variation1414.3%78.6%
C21Danish gambit, Schlechter defence714.3%50.0%
B02Alekhine's defence, Brooklyn defence714.3%35.7%
B02Alekhine's defence, Kmoch variation714.3%21.4%
C00French, Steinitz attack911.1%27.8%
A25English, closed, Taimanov variation2010.0%65.0%
C14French, classical, Tarrasch variation1010.0%55.0%
B15Caro-Kann, Rasa-Studier gambit119.1%31.8%
C38KGA, Philidor gambit128.3%29.2%
C30KGD, Norwalde variation147.1%82.1%
D48QGD semi-Slav, Meran205.0%37.5%
A42Modern defence, Averbakh system, Randspringer variation90.0%77.8%
C13French, classical, Vistaneckis (Nimzovich) variation90.0%66.7%
C52Evans gambit, Waller attack60.0%100.0%
C82Ruy Lopez, open, 9.c350.0%80.0%
C37KGA, Salvio gambit, Anderssen counter-attack50.0%60.0%
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
C78Ruy Lopez, Wing attack40.0%50.0%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
D21QGA, Ericson variation40.0%25.0%
D51QGD, Alekhine variation40.0%50.0%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
A59Benko gambit, Ne2 variation30.0%33.3%
C57Two knights defence, Fegatello attack, Polerio defence30.0%100.0%
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%
E37Nimzo-Indian, classical, San Remo variation30.0%66.7%
A00Anti-Borg (Desprez) opening30.0%33.3%
C58Two knights defence, Blackburne variation30.0%66.7%
D86Gruenfeld, exchange, Larsen variation30.0%66.7%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
A83Dutch, Staunton gambit, Nimzovich variation20.0%0.0%
C55Giuoco piano20.0%50.0%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C44Dresden opening20.0%0.0%
D08QGD, Albin counter-gambit, Lasker trap20.0%50.0%
C52Evans gambit, Sanders-Alapin variation20.0%100.0%
C41Philidor, Lopez counter-gambit20.0%50.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
E14Queen's Indian, Averbakh variation20.0%50.0%
D50QGD, Canal (Venice) variation20.0%50.0%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
A04Reti, Herrstroem gambit20.0%100.0%
B10Caro-Kann, Hillbilly attack20.0%50.0%
C51Evans gambit, Fraser attack20.0%100.0%
A04Reti, Wade defence20.0%50.0%
C23Bishop's opening, Lopez gambit20.0%0.0%
C41Philidor, Steinitz variation20.0%0.0%
C40King's knight opening20.0%50.0%
C60Ruy Lopez, Lucena defence20.0%50.0%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C15French, Winawer, Alekhine gambit20.0%50.0%
A10English, Jaenisch gambit20.0%100.0%
A25English, closed, 5.Rb1 Taimanov variation20.0%50.0%
C51Evans gambit declined, Lange variation20.0%0.0%
C45Scotch, Pulling counter-attack20.0%50.0%
B40Sicilian, Marshall variation10.0%100.0%
D40QGD, Semi-Tarrasch, Levenfish variation10.0%100.0%
C25Vienna, Steinitz gambit10.0%0.0%
C33KGA, Carrera (Basman) gambit10.0%100.0%
C55Two knights, Max Lange attack, Loman defence10.0%100.0%
A00Amar gambit10.0%0.0%
C39KGA, Kieseritsky, Brentano defence10.0%100.0%
C27Vienna, `Frankenstein-Dracula' variation10.0%100.0%
C30KGD, classical counter-gambit10.0%0.0%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
A00Amsterdam attack10.0%100.0%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
D80Gruenfeld, Lundin variation10.0%0.0%
D26QGA, classical, Furman variation10.0%0.0%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C51Evans gambit, Goering attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C44Scotch gambit, Hanneken variation10.0%100.0%
C45Scotch, Paulsen attack10.0%100.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%
A02Bird, From gambit, Lipke variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
B62Sicilian, Richter-Rauzer, Richter attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
C33King's gambit accepted10.0%0.0%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
C33KGA, bishop's gambit, classical defence10.0%0.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%

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