CCRL 40/40
Downloads and Statistics
June 18, 2018
Testing summary:
Total: 849'893 games
played by 2'196 programs
118931 CPU days (X2 4600+)

White wins: 292'067 (34.4%)
Black wins: 216'114 (25.4%)
Draws: 341'712 (40.2%)
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 attack5100.0%50.0%
C45Scotch, Ghulam Kassim variation4100.0%50.0%
C32KGD, Falkbeer, Charousek gambit2100.0%50.0%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
C39KGA, Kieseritsky, Brentano defence, Caro variation2100.0%50.0%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C77Ruy Lopez, Wormald attack, Gruenfeld variation2100.0%50.0%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
C48Four knights, Rubinstein counter-gambit, 5.Be22100.0%50.0%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C43Petrov, modern attack, Steinitz variation1100.0%50.0%
C11French, Steinitz, Bradford attack1100.0%50.0%
A38English, symmetrical, main line with b31100.0%50.0%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
A56Vulture defence1100.0%50.0%
C30KGD, classical, Reti variation1100.0%50.0%
B12Caro-Masi defence1100.0%50.0%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
D50QGD, Semi-Tarrasch, Krause variation1100.0%50.0%
C55Two knights defence, Keidanz variation1100.0%50.0%
D63QGD, Orthodox defence, Capablanca variation1100.0%50.0%
C30KGD, classical, Svenonius variation1100.0%50.0%
C65Ruy Lopez, Berlin defence, Anderssen variation1100.0%50.0%
C15French, Winawer, Kondratiyev variation1100.0%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%
C42Petrov, classical attack, Berger variation1275.0%54.2%
D41QGD, Semi-Tarrasch, Kmoch variation875.0%50.0%
A86Dutch, Hort-Antoshin system475.0%62.5%
C48Four knights, Spielmann variation475.0%37.5%
B77Sicilian, dragon, Yugoslav attack, Byrne variation475.0%62.5%
C49Four knights, symmetrical, Blake variation475.0%62.5%
E08Catalan, closed, Zagoryansky variation475.0%37.5%
E21Nimzo-Indian, three knights, Euwe variation475.0%62.5%
C21Danish gambit, Collijn defence475.0%37.5%
C44Scotch opening475.0%37.5%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1573.3%63.3%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1172.7%54.5%
C10French, Rubinstein, Capablanca line771.4%50.0%
D57QGD, Lasker defence, Bernstein variation1070.0%45.0%
C26Vienna, Mengarini variation1266.7%41.7%
C42Petrov, French attack966.7%66.7%
C40Latvian gambit, 3.Bc4966.7%44.4%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C33KGA, bishop's gambit, Paulsen attack666.7%50.0%
C44Scotch, Relfsson gambit ('MacLopez')666.7%66.7%
E20Nimzo-Indian, Mikenas attack666.7%50.0%
E60King's Indian, Danube gambit666.7%66.7%
C49Four knights, Svenonius variation366.7%66.7%
D00Queen's pawn, Anti-Veresov366.7%33.3%
C40QP counter-gambit, Maroczy gambit366.7%66.7%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation366.7%66.7%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
C80Ruy Lopez, open, Berger variation366.7%33.3%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
A43Hawk (Habichd) defence366.7%33.3%
B15Caro-Kann, Gurgenidze counter-attack366.7%66.7%
C48Four knights, Rubinstein counter-gambit, exchange variation14965.8%52.3%
D51QGD2365.2%63.0%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation2564.0%68.0%
C83Ruy Lopez, open, Malkin variation1662.5%56.3%
C41Philidor, Philidor counter-gambit, Zukertort variation862.5%68.8%
C31KGD, Falkbeer, 3...e4862.5%56.3%
C41Philidor, Nimzovich, Sokolsky variation862.5%68.8%
B01Scandinavian, Mieses-Kotrvc gambit862.5%43.8%
B44Sicilian, Szen variation, Dely-Kasparov gambit2161.9%59.5%
D65QGD, Orthodox defence, Rubinstein attack, main line1361.5%69.2%
D51QGD, Capablanca anti-Cambridge Springs variation1861.1%69.4%
C37KGA, King's knight's gambit1861.1%63.9%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc48560.0%42.9%
D34QGD, Tarrasch, Reti variation3060.0%60.0%
C53Giuoco Piano, Anderssen variation2060.0%40.0%
A47Queen's Indian, Marienbad system, Berg variation1560.0%56.7%
C40QP counter-gambit (elephant gambit)1560.0%63.3%
C65Ruy Lopez, Berlin defence, Mortimer variation1560.0%30.0%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation1060.0%70.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence560.0%30.0%
A02Bird, Hobbs gambit560.0%70.0%
A51Budapest, Fajarowicz, Steiner variation560.0%50.0%
C31KGD, Falkbeer, Nimzovich variation560.0%70.0%
C57Two knights defence, Ulvestad variation3259.4%45.3%
C49Four knights, symmetrical, Capablanca variation2259.1%61.4%
C21Danish gambit, Soerensen defence3959.0%57.7%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
D22QGA, Haberditz variation12357.7%52.4%
C49Four knights, Nimzovich (Paulsen) variation5457.4%58.3%
C66Ruy Lopez, closed Berlin defence, Wolf variation6157.4%56.6%
D05Queen's pawn game, Zukertort variation2857.1%57.1%
C41Philidor, Hanham, Krause variation1457.1%42.9%
E23Nimzo-Indian, Spielmann, San Remo variation757.1%71.4%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation3756.8%55.4%
D26QGA, classical, Steinitz variation6056.7%65.0%
C67Ruy Lopez, open Berlin defence, l'Hermet variation8356.6%50.0%
D57QGD, Lasker defence, main line5356.6%50.9%
E77King's Indian, Four pawns attack, 6.Be22356.5%54.3%
D51QGD, 5...c68556.5%51.8%
C49Four knights, symmetrical, Pillsbury variation4856.3%44.8%
C31KGD, Falkbeer, Tartakower variation1656.3%40.6%
C33KGA, Keres (Mason-Steinitz) gambit1656.3%34.4%
C23Bishop's opening, Philidor counter-attack15756.1%48.4%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation2556.0%56.0%
C57Two knights defence, Fritz variation2556.0%48.0%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd76855.9%51.5%
C65Ruy Lopez, Berlin defence, Nyholm attack7755.8%53.9%
B18Caro-Kann, classical, Flohr variation9055.6%50.0%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
B03Alekhine's defence, exchange, Karpov variation955.6%50.0%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
A84Dutch, Staunton gambit deferred955.6%27.8%
C70Ruy Lopez, fianchetto defence deferred5655.4%54.5%
A02Bird, From gambit, Lasker variation2955.2%58.6%
C31KGD, Falkbeer, 4.d32055.0%62.5%
B07Pirc, bayonet (Mariotti) attack3154.8%56.5%
E05Catalan, open, classical line10654.7%53.8%
D87Gruenfeld, exchange, Seville variation7754.5%62.3%
B60Sicilian, Richter-Rauzer, Bondarevsky variation3354.5%60.6%
A06Tennison (Lemberg, Zukertort) gambit2254.5%40.9%
C96Ruy Lopez, closed (8...Na5)2254.5%63.6%
C80Ruy Lopez, open, Tartakower variation1154.5%45.5%
D45QGD semi-Slav, stonewall defence1154.5%54.5%
C29Vienna gambit, Paulsen attack1154.5%54.5%
E92King's Indian, Andersson variation29854.4%49.3%
C45Scotch, Meitner variation3554.3%55.7%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)4854.2%58.3%
C86Ruy Lopez, Worrall attack2454.2%56.3%
C39KGA, Kieseritsky, Neumann defence1353.8%65.4%
D25QGA, Smyslov variation9553.7%58.4%
D29QGA, classical, Smyslov variation4153.7%46.3%
C54Giuoco Piano18053.3%52.8%
D69QGD, Orthodox defence, classical, 13.de1553.3%53.3%
C67Ruy Lopez, Berlin defence, Zukertort variation1553.3%60.0%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit3253.1%48.4%
D35QGD, Harrwitz attack21553.0%55.3%
D30QGD, Vienna variation76453.0%52.4%
C49Four knights6852.9%48.5%
A12English, New York (London) defensive system3452.9%44.1%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1752.9%44.1%
C22Centre game, Hall variation1752.9%38.2%
E10Dzindzikhashvili defence8752.9%58.6%
E34Nimzo-Indian, classical, Noa variation78852.8%53.8%
E65King's Indian, fianchetto, Yugoslav, 7.O-O18452.7%52.4%
D27QGA, classical, Geller variation7652.6%53.9%
C48Four knights, Ranken variation1952.6%63.2%
B74Sicilian, dragon, classical, 9.Nb337152.6%48.1%
C89Ruy Lopez, Marshall counter-attack52052.5%54.5%
E17Queen's Indian, Euwe variation6352.4%54.8%
D12QGD Slav, Amsterdam variation2152.4%45.2%
C53Giuoco Piano, LaBourdonnais variation2152.4%50.0%
B13Caro-Kann, Panov-Botvinnik, normal variation9652.1%57.3%
D63QGD, Orthodox defence, Pillsbury attack2552.0%58.0%
D26QGA, classical variation69751.9%53.1%
D55QGD, Petrosian variation36351.8%53.7%
D28QGA, classical, 7...b520151.7%56.2%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d516151.6%50.0%
C66Ruy Lopez, Berlin defence, hedgehog variation10351.5%58.7%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc310951.4%58.7%
C73Ruy Lopez, modern Steinitz defence, Richter variation14651.4%53.8%
D56QGD, Lasker defence, Teichmann variation9651.0%49.5%
C68Ruy Lopez, exchange, Keres variation9851.0%52.0%
E56Nimzo-Indian, 4.e3, main line with 7...Nc635151.0%56.0%
A94Dutch, stonewall with Ba35350.9%57.5%
D73Neo-Gruenfeld, 5.Nf382550.9%55.2%
D27QGA, classical, 6...a6394950.9%55.2%
B20Sicilian, wing gambit5950.8%40.7%
C81Ruy Lopez, open, Howell attack14650.7%52.1%
C82Ruy Lopez, open, Italian variation9350.5%65.1%
C48Four knights, Spanish variation24250.4%56.6%
C89Ruy Lopez, Marshall, main line, 14...Qh342750.4%50.9%
B19Caro-Kann, classical, 7...Nd738350.1%53.0%
D39QGD, Ragozin, Vienna variation159250.1%51.1%
A28English, four knights, Romanishin variation45550.1%52.3%
B14Caro-Kann, Panov-Botvinnik attack, 5...g631850.0%53.3%
D93Gruenfeld with Bf4 e328250.0%52.3%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)15650.0%56.4%
E20Nimzo-Indian defence15450.0%52.9%
E25Nimzo-Indian, Saemisch, Romanovsky variation10050.0%51.0%
D28QGA, classical, 7.Qe26450.0%60.9%
D84Gruenfeld, Gruenfeld gambit accepted6250.0%55.6%
D33QGD, Tarrasch, Folkestone (Swedish) variation5650.0%60.7%
C11French, Swiss variation4650.0%55.4%
D08QGD, Albin counter-gambit, Alapin variation3050.0%61.7%
C12French, MacCutcheon, Grigoriev variation2650.0%55.8%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2250.0%47.7%
C55Two knights, Max Lange attack, Schlechter variation2250.0%52.3%
D01Richter-Veresov attack, Veresov variation2250.0%47.7%
D94Gruenfeld, Flohr defence2050.0%60.0%
C92Ruy Lopez, closed, Keres (9...a5) variation1850.0%47.2%
B62Sicilian, Richter-Rauzer, Podvebrady variation1850.0%36.1%
C33KGA, bishop's gambit, Ruy Lopez defence1650.0%50.0%
B88Sicilian, Sozin, Fischer variation1650.0%50.0%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C44Konstantinopolsky opening1250.0%58.3%
C37KGA, Rosentreter gambit1250.0%33.3%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
B05Alekhine's defence, modern, Vitolins attack1050.0%45.0%
C44Scotch, Goering gambit, Bardeleben variation1050.0%45.0%
B57Sicilian, Magnus Smith trap1050.0%35.0%
C80Ruy Lopez, open, Riga variation1050.0%65.0%
A59Benko gambit, 7.e4850.0%50.0%
C48Four knights, Bardeleben variation850.0%50.0%
C78Ruy Lopez, Wing attack850.0%50.0%
D89Gruenfeld, exchange, Sokolsky variation850.0%37.5%
C58Two knights defence, Kieseritsky variation850.0%62.5%
A81Dutch, Leningrad, Karlsbad variation650.0%58.3%
C61Ruy Lopez, Bird's defence, Paulsen variation650.0%58.3%
D08QGD, Albin counter-gambit, Janowski variation650.0%58.3%
C22Centre game, Charousek variation650.0%58.3%
E77King's Indian, Four pawns attack, Florentine gambit650.0%41.7%
C51Evans counter-gambit650.0%58.3%
C14French, classical, Stahlberg variation650.0%58.3%
D50QGD, Been-Koomen variation650.0%25.0%
C00French, Alapin variation650.0%75.0%
C41Philidor, Hanham, Delmar variation450.0%75.0%
C32KGD, Falkbeer, Reti variation450.0%50.0%
A03Mujannah opening450.0%25.0%
C52Evans gambit, Leonhardt variation450.0%50.0%
C51Evans gambit450.0%75.0%
A81Dutch, Leningrad, Basman system450.0%75.0%
B01Scandinavian, Richter variation450.0%75.0%
B00Carr's defence450.0%50.0%
C33KGA, bishop's gambit, Boden defence450.0%25.0%
C33KGA, bishop's gambit, Anderssen variation450.0%50.0%
B00Barnes defence250.0%75.0%
A02Bird's opening, Swiss gambit250.0%75.0%
C83Ruy Lopez, open, Breslau variation250.0%75.0%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C41Philidor, Paulsen attack250.0%25.0%
C10French, Marshall variation250.0%25.0%
B06Norwegian defence250.0%25.0%
C23Bishop's opening, Wing gambit250.0%75.0%
D19QGD Slav, Dutch, Saemisch variation250.0%25.0%
B00Corn stalk defence250.0%25.0%
B07Pirc, Chinese variation250.0%25.0%
C52Evans gambit, Alapin-Steinitz variation250.0%25.0%
C23Bishop's opening, MacDonnell double gambit250.0%25.0%
C20KP, King's head opening250.0%25.0%
C60Ruy Lopez, Vinogradov variation250.0%75.0%
C37KGA, Salvio gambit250.0%75.0%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation250.0%75.0%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C08French, Tarrasch, open, 4.ed ed129749.8%54.5%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation22349.8%56.3%
D90Gruenfeld, Three knights variation59349.7%54.2%
C45Scotch, Schmidt variation66249.7%46.8%
C09French, Tarrasch, open variation, main line108349.5%56.8%
D14QGD Slav, exchange variation, 6.Bf4 Bf567949.5%51.0%
C51Evans gambit, Cordel variation8749.4%46.6%
D48QGD semi-Slav, Meran, 8...a6140449.4%48.9%
D14QGD Slav, exchange, Trifunovic variation21149.3%52.6%
C00St. George defence12449.2%63.3%
D16QGD Slav, Soultanbeieff variation42549.2%53.5%
C47Four knights, Scotch, 4...exd447649.2%53.8%
D47QGD semi-Slav, Meran variation128349.0%54.8%
B80Sicilian, Scheveningen, Vitolins variation4949.0%51.0%
C66Ruy Lopez, Berlin defence, 4.O-O, d69649.0%55.7%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd518848.9%46.8%
D06QGD, symmetrical (Austrian) defence4748.9%58.5%
D53QGD, 4.Bg5 Be7, 5.e3 O-O4548.9%48.9%
C67Ruy Lopez, Berlin defence, Minckwitz variation4348.8%61.6%
C42Petrov, Kaufmann attack19948.7%50.5%
E01Catalan, closed51348.7%53.0%
C42Petrov, Cozio (Lasker) attack50548.7%52.7%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc122648.7%55.8%
B23Sicilian, closed, Korchnoi variation15248.7%52.0%
C90Ruy Lopez, closed, Lutikov variation3748.6%56.8%
D68QGD, Orthodox defence, classical variation7248.6%56.3%
C84Ruy Lopez, closed, centre attack17348.6%46.2%
C10French, Rubinstein variation226848.5%55.3%
D17QGD Slav, Czech defence38748.3%54.9%
E06Catalan, closed, 5.Nf3297748.3%54.0%
C31KGD, Falkbeer counter-gambit5848.3%53.4%
D41QGD, Semi-Tarrasch, 5.cd62448.2%57.1%
C80Ruy Lopez, open, Bernstein variation89448.2%62.9%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation187548.2%55.7%
D79Neo-Gruenfeld, 6.O-O, main line51548.2%54.4%
D83Gruenfeld, Gruenfeld gambit2748.1%61.1%
D24QGA, Bogolyubov variation15848.1%56.3%
E24Nimzo-Indian, Saemisch variation18348.1%48.6%
C67Ruy Lopez, Berlin defence, Rosenthal variation2548.0%64.0%
D34QGD, Tarrasch, Prague variation, Normal position66948.0%56.1%
A92Dutch defence7347.9%59.6%
D47QGD semi-Slav, neo-Meran (Lundin variation)30347.9%54.6%
B74Sicilian, dragon, classical, Alekhine variation2347.8%67.4%
B13Caro-Kann, Panov-Botvinnik attack102547.8%52.7%
D85Gruenfeld, exchange variation297747.8%56.4%
A50Queen's Indian accelerated20347.8%57.9%
D63QGD, Orthodox defence10747.7%59.3%
B10Caro-Kann, anti-anti-Caro-Kann defence136447.7%51.8%
D52QGD, Cambridge Springs defence, Bogoljubow variation42647.7%56.0%
A14English, Symmetrical, Keres defence52947.6%57.1%
D80Gruenfeld defence88447.6%54.6%
A92Dutch, stonewall variation8447.6%58.3%
E78King's Indian, Four pawns attack, with Be2 and Nf32147.6%57.1%
D66QGD, Orthodox defence, Bd3 line25047.6%59.4%
E33Nimzo-Indian, classical, 4...Nc610347.6%59.7%
D34QGD, Tarrasch, Prague variation, 9.Bg554547.5%57.5%
C07French, Tarrasch, open variation362047.5%53.6%
C83Ruy Lopez, open, classical defence18147.5%60.8%
D27QGA, classical, Rubinstein variation146547.5%56.0%
D71Neo-Gruenfeld, 5.cd30147.5%56.6%
D30QGD82847.5%51.9%
C42Petrov, classical attack78947.4%56.8%
C41Philidor, Nimzovich, Larobok variation5747.4%34.2%
B07Pirc, Holmov system3847.4%60.5%
B34Sicilian, accelerated fianchetto, exchange variation1947.4%65.8%
C66Ruy Lopez, closed Berlin defence, Showalter variation5547.3%56.4%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence5547.3%38.2%
D30QGD, Hastings variation58647.3%52.5%
D26QGA, classical variation, 6.O-O15947.2%58.2%
E27Nimzo-Indian, Saemisch variation5347.2%44.3%
C77Ruy Lopez, four knights (Tarrasch) variation15547.1%55.8%
A33English, symmetrical variation156347.1%54.3%
B74Sicilian, dragon, classical, Reti-Tartakower variation8547.1%55.3%
C51Evans gambit declined, Showalter variation3447.1%52.9%
D05Colle system18547.0%54.9%
C43Petrov, modern attack, main line20047.0%58.5%
C41Philidor, Nimzovich variation4946.9%56.1%
B59Sicilian, Boleslavsky variation, 7.Nb313046.9%51.9%
C65Ruy Lopez, Berlin defence, Kaufmann variation3246.9%54.7%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd358746.8%52.0%
D32QGD, Tarrasch defence34446.8%53.6%
C47Four knights, Belgrade gambit10946.8%54.6%
D35QGD, exchange, Saemisch variation30846.8%54.2%
A38English, symmetrical, main line with d315446.8%53.2%
A30English, symmetrical, hedgehog system263346.8%55.7%
D94Gruenfeld, Makogonov variation9246.7%47.3%
D41QGD, Semi-Tarrasch with e318046.7%57.2%
A83Dutch, Staunton gambit, Lasker variation1546.7%43.3%
E11Bogo-Indian defence, Monticelli trap1546.7%43.3%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed56846.7%50.4%
D23QGA, Mannheim variation32646.6%52.8%
C49Four knights, double Ruy Lopez8846.6%61.9%
D85Gruenfeld, modern exchange variation319446.6%55.8%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg714646.6%55.5%
D77Neo-Gruenfeld, 6.O-O69846.6%54.2%
D49QGD semi-Slav, Meran, Blumenfeld variation17446.6%51.4%
B58Sicilian, classical21546.5%47.0%
A12English, Caro-Kann defensive system, Bogolyubov variation8646.5%53.5%
D59QGD, Tartakower variation11446.5%46.1%
C42Petrov, classical attack, close variation14246.5%59.2%
C46Four knights, Gunsberg variation9946.5%50.5%
D37QGD, 4.Nf3554746.4%52.9%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)2846.4%55.4%
D44QGD semi-Slav, 5.Bg5 dc15346.4%49.3%
E19Queen's Indian, old main line, 9.Qxc3137446.4%58.3%
D58QGD, Tartakower (Makagonov-Bondarevsky) system498746.4%52.0%
E15Queen's Indian, 4.g3251146.4%55.5%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6183446.3%55.3%
C67Ruy Lopez, Berlin defence, open variation370746.3%54.0%
B12Caro-Kann, Edinburgh variation4146.3%57.3%
C78Ruy Lopez, 5.O-O112546.3%54.5%
C82Ruy Lopez, open, Motzko attack6746.3%59.0%
D13QGD Slav, exchange variation72246.3%55.4%
D20Queen's gambit accepted93146.2%55.3%
D56QGD, Lasker defence34046.2%53.7%
D38QGD, Ragozin variation422346.2%52.4%
B55Sicilian, Prins variation, Venice attack5246.2%51.9%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2646.2%42.3%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
C07French, Tarrasch, Eliskases variation12846.1%53.5%
E25Nimzo-Indian, Saemisch, Keres variation29346.1%54.1%
B73Sicilian, dragon, classical, 8.O-O36746.0%52.2%
B85Sicilian, Scheveningen, classical main line35446.0%55.5%
C89Ruy Lopez, Marshall counter-attack, 11...c617646.0%56.0%
C15French, Winawer, Alekhine gambit, Kan variation5046.0%47.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc237246.0%62.5%
D94Gruenfeld, Smyslov defence16146.0%57.8%
B73Sicilian, dragon, classical, Richter variation11145.9%57.2%
C54Giuoco Piano, Moeller (Therkatz) attack3745.9%47.3%
A13English, Neo-Catalan accepted113945.9%56.2%
D53QGD, 4.Bg5 Be799045.9%54.6%
C44Ponziani, Jaenisch counter-attack213145.8%52.7%
C52Evans gambit, Tartakower attack7245.8%43.8%
C95Ruy Lopez, closed, Breyer, Gligoric variation4845.8%54.2%
E10Doery defence2445.8%56.3%
A54Old Indian, Ukrainian variation11845.8%57.6%
C26Vienna, Falkbeer variation5945.8%58.5%
D86Gruenfeld, exchange, classical variation107845.7%55.6%
C43Petrov, modern (Steinitz) attack3545.7%60.0%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)64845.7%54.2%
C39KGA, Kieseritsky, Kolisch defence8145.7%45.1%
C14French, classical, Alapin variation9245.7%55.4%
D02Queen's pawn game, Krause variation39045.6%54.1%
E02Catalan, open, 5.Qa414945.6%58.4%
C49Four knights, symmetrical, Maroczy system5745.6%50.9%
C80Ruy Lopez, open (Tarrasch) defence5745.6%59.6%
C42Petrov, classical attack, Jaenisch variation166445.6%58.3%
E22Nimzo-Indian, Spielmann variation14545.5%51.7%
D82Gruenfeld, 4.Bf454345.5%53.1%
C43Petrov, modern attack, Trifunovic variation5545.5%48.2%
C44Inverted Hungarian2245.5%59.1%
B72Sicilian, dragon, classical, Nottingham variation2245.5%54.5%
C25Vienna, Pierce gambit1145.5%59.1%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation1145.5%77.3%
D40QGD, Semi-Tarrasch, symmetrical variation1145.5%50.0%
D61QGD, Orthodox defence, Rubinstein variation24045.4%52.3%
D30Queen's gambit declined607845.4%55.5%
D30QGD, Capablanca-Duras variation35545.4%53.7%
A72Benoni, classical without 9.O-O6445.3%61.7%
D31QGD, Charousek (Petrosian) variation154145.3%53.3%
D55QGD, Neo-orthodox variation, 7.Bxf635645.2%51.3%
B01Scandinavian, Marshall variation56445.2%60.0%
D26QGA, 4...e627045.2%52.6%
C42Petrov, Nimzovich attack114945.2%55.0%
C48Four knights, Spanish, classical defence18645.2%50.0%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system44145.1%54.1%
D11QGD Slav, Breyer variation13345.1%59.4%
A38English, symmetrical variation52645.1%55.2%
C43Petrov, modern attack, Symmetrical variation244745.0%53.2%
D46QGD semi-Slav, Chigorin defence43345.0%53.9%
B97Sicilian, Najdorf, Poisoned pawn variation110045.0%49.8%
E90King's Indian, Zinnowitz variation4045.0%57.5%
C34KGA, Bonsch-Osmolovsky variation4045.0%55.0%
E41Nimzo-Indian, 4.e3 c574745.0%54.6%
D37QGD, classical variation (5.Bf4)418144.9%55.2%
C44Ponziani, Caro variation22744.9%49.3%
B36Sicilian, accelerated fianchetto, Maroczy bind95144.9%58.0%
C72Ruy Lopez, modern Steinitz defence, 5.O-O46644.8%57.4%
B09Pirc, Austrian attack, 6.e58744.8%56.9%
C33KGA, bishop's gambit, Steinitz defence2944.8%50.0%
A58Benko gambit, fianchetto variation15444.8%60.7%
C70Ruy Lopez, Cozio defence deferred31744.8%52.7%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)9644.8%56.8%
C55Two knights defence6744.8%52.2%
A52Budapest, Adler variation18144.8%53.3%
C44Scotch, Goering gambit19044.7%57.1%
B72Sicilian, dragon, classical, Grigoriev variation3844.7%46.1%
C01French, exchange variation147044.7%53.5%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3145844.7%52.9%
E10Queen's pawn game422044.6%55.7%
D92Gruenfeld, 5.Bf468144.6%56.7%
E49Nimzo-Indian, 4.e3, Botvinnik system20444.6%56.6%
B18Caro-Kann, classical variation158344.6%54.3%
D49QGD semi-Slav, Meran, Sozin variation15744.6%45.9%
D55QGD, Neo-orthodox variation, 7.Bh413744.5%58.0%
B49Sicilian, Taimanov variation65244.5%58.3%
D94Gruenfeld, 5.e342544.5%57.5%
C55Two knights defence, Perreux variation2744.4%55.6%
E72King's Indian, Pomar system1844.4%50.0%
A00Amar (Paris) opening1844.4%33.3%
D95Gruenfeld with e3 & Qb31844.4%61.1%
C37KGA, Muzio gambit944.4%33.3%
D32QGD, Tarrasch defence, Tarrasch gambit944.4%33.3%
C23Bishop's opening, Philidor variation944.4%55.6%
B73Sicilian, dragon, classical, Zollner gambit944.4%44.4%
C42Petrov, classical attack, Krause variation944.4%33.3%
B02Alekhine's defence, Steiner variation944.4%55.6%
E46Nimzo-Indian, Reshevsky variation94444.4%51.5%
D10QGD Slav defence, exchange variation150444.3%55.5%
C70Ruy Lopez, Classical defence deferred9744.3%60.3%
C03French, Tarrasch220744.3%56.9%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation167944.3%51.1%
D50QGD, 4.Bg59544.2%53.7%
C27Vienna game12944.2%54.7%
B83Sicilian, modern Scheveningen, main line52344.2%53.1%
C11French, Burn variation515444.1%53.0%
B36Sicilian, accelerated fianchetto, Gurgenidze variation27244.1%60.3%
B27Sicilian, Katalimov variation13644.1%61.0%
C46Four knights game61944.1%50.2%
D95Gruenfeld, Botvinnik variation7544.0%51.3%
D54QGD, Anti-neo-orthodox variation5044.0%50.0%
E36Nimzo-Indian, classical, Noa variation, 5.a329643.9%53.0%
B44Sicilian defence31243.9%52.1%
C26Vienna game28743.9%54.0%
A59Benko gambit4143.9%63.4%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O22143.9%56.8%
C56Two knights defence13943.9%49.3%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3107843.9%57.7%
C45Scotch, Romanishin variation5743.9%60.5%
B01Scandinavian, Pytel-Wade variation272643.8%58.2%
C21Centre game16243.8%57.7%
A40Queen's pawn, Keres defence179543.8%56.2%
D09QGD, Albin counter-gambit, 5.g314443.8%56.6%
D70Neo-Gruenfeld (Kemeri) defence6443.8%53.1%
A05Reti, King's Indian attack, Spassky's variation35043.7%53.0%
E32Nimzo-Indian, classical, Adorjan gambit10343.7%51.0%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb653843.7%57.5%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation82243.7%55.5%
D06QGD, Marshall defence15843.7%58.5%
E12Queen's Indian, Miles variation146843.7%53.6%
D97Gruenfeld, Russian, Prins variation44943.7%57.0%
D80Gruenfeld, Stockholm variation70143.7%54.4%
D63QGD, Orthodox defence, Swiss (Henneberger) variation9443.6%62.2%
A35English, symmetrical, four knights system209543.6%53.5%
B57Sicilian, Sozin, not Scheveningen24143.6%55.8%
D81Gruenfeld, Russian variation40443.6%61.6%
A00Grob's attack18643.5%34.7%
A40Polish defence6243.5%55.6%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)206743.5%53.9%
E08Catalan, closed, Qc2 & b321643.5%51.4%
C44Ponziani counter-gambit10843.5%57.9%
E04Catalan, open, 5.Nf3438143.5%53.6%
C63Ruy Lopez, Schliemann defence33843.5%57.8%
D32QGD, Tarrasch, von Hennig-Schara gambit6943.5%62.3%
D60QGD, Orthodox defence, Rauzer variation4643.5%63.0%
C25Vienna game, Max Lange defence2343.5%52.2%
C42Petrov, classical attack, Marshall variation96743.4%57.1%
D45QGD semi-Slav, Stoltz variation1172543.4%53.2%
B22Sicilian, Alapin's variation (2.c3)607543.4%54.7%
A28English, four knights system35743.4%51.4%
E59Nimzo-Indian, 4.e3, main line74443.4%53.4%
D42QGD, Semi-Tarrasch, 7.Bd326543.4%55.7%
A14English, Neo-Catalan declined81643.4%54.2%
B01Scandinavian, Icelandic gambit6043.3%55.0%
E18Queen's Indian, old main line, 7.Nc3164643.3%57.0%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)7443.2%44.6%
C00French defence, Steiner variation76843.2%51.4%
B17Caro-Kann, Steinitz variation374443.2%53.6%
D31QGD, semi-Slav, Marshall gambit87743.2%54.1%
B35Sicilian, accelerated fianchetto, modern variation with Bc4198143.2%53.5%
A32English, symmetrical variation40543.2%57.9%
A34English, symmetrical, three knights system123643.2%54.4%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation12543.2%57.6%
A30English, symmetrical, hedgehog, flexible formation17643.2%54.5%
C91Ruy Lopez, closed, Bogolyubov variation379943.2%53.8%
A00Polish, Outflank variation13943.2%48.9%
E12Queen's Indian, Petrosian system667743.1%54.0%
A00Grob, Fritz gambit5143.1%27.5%
A15English opening1132443.1%53.4%
C50Giuoco Pianissimo, Canal variation18843.1%52.9%
C48Four knights, Rubinstein counter-gambit, Henneberger variation6543.1%52.3%
E07Catalan, closed, Botvinnik variation7243.1%43.8%
D35QGD, exchange variation38143.0%55.9%
C63Ruy Lopez, Schliemann defence, Berger variation38843.0%56.6%
C77Ruy Lopez, Wormald (Alapin) attack35843.0%54.7%
C42Petrov's defence28643.0%53.3%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation22843.0%58.8%
D36QGD, exchange, positional line, 6.Qc227743.0%52.9%
D15QGD Slav, Schlechter variation29143.0%59.3%
B86Sicilian, Sozin attack19142.9%52.9%
B02Alekhine's defence, Two pawns' (Lasker's) attack30342.9%54.5%
D30QGD Slav32442.9%54.2%
C69Ruy Lopez, exchange, Gligoric variation74242.9%55.0%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation26642.9%57.5%
A07Reti, King's Indian attack (with ...c5)18942.9%48.4%
C71Ruy Lopez, modern Steinitz defence11242.9%55.4%
C00French, Wing gambit4242.9%59.5%
C13French, classical2842.9%42.9%
C30KGD, Keene's defence2142.9%69.0%
C51Evans gambit, Morphy attack2142.9%54.8%
A74Benoni, classical, 9...a6, 10.a42142.9%73.8%
C27Vienna, Alekhine variation1442.9%50.0%
D51QGD, Manhattan variation1442.9%64.3%
E79King's Indian, Four pawns attack, main line1442.9%57.1%
B09Pirc, Austrian attack, Ljubojevic variation1442.9%50.0%
B21Sicilian, Andreaschek gambit1442.9%57.1%
C20KP, Lopez opening1442.9%35.7%
B05Alekhine's defence, modern, Alekhine variation742.9%50.0%
C46Three knights, Steinitz, Rosenthal variation742.9%35.7%
A51Budapest defence declined742.9%64.3%
D31QGD, Alapin variation742.9%64.3%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
C29Vienna gambit, Bardeleben variation742.9%35.7%
C45Scotch game243242.8%53.6%
B20Sicilian, Steinitz variation40942.8%50.2%
A40Queen's pawn, English defence20142.8%60.7%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7169042.8%50.0%
D46QGD semi-Slav, Bogolyubov variation16642.8%56.3%
C92Ruy Lopez, closed, 9.h338642.7%52.2%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d549642.7%49.2%
D96Gruenfeld, Russian variation24842.7%54.8%
B53Sicilian, Chekhover variation128542.7%50.9%
D15QGD Slav accepted9642.7%51.6%
D34QGD, Tarrasch, Prague variation, 7...Be717842.7%56.2%
D63QGD, Orthodox defence, Swiss, Karlsbad variation17142.7%53.5%
E00Catalan opening327342.7%54.8%
B04Alekhine's defence, modern, Larsen variation82542.7%60.1%
C49Four knights, symmetrical variation19742.6%55.3%
A00Benko's opening, reversed Alekhine11542.6%48.3%
C60Ruy Lopez, Cozio defence30342.6%51.3%
A16English, Anglo-Gruenfeld defense25442.5%53.5%
E12Queen's Indian defence67542.5%54.0%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation32042.5%63.8%
C75Ruy Lopez, modern Steinitz defence16042.5%54.4%
E25Nimzo-Indian, Saemisch variation14642.5%52.1%
C64Ruy Lopez, Cordel gambit7342.5%56.8%
C51Evans gambit declined, 5.a417242.4%46.2%
C34KGA, Becker defence3342.4%45.5%
C78Ruy Lopez, Moeller defence58042.4%53.1%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d519142.4%51.0%
D94Gruenfeld, Opovcensky variation15842.4%54.1%
C15French, Winawer (Nimzovich) variation79542.4%55.4%
C42Petrov, classical attack, Mason variation11842.4%57.6%
E73King's Indian, Semi-Averbakh system5942.4%55.1%
D35QGD, exchange, positional line, 5...c679342.4%55.5%
A08Reti, King's Indian attack55742.4%52.6%
E60King's Indian, 3.g3165542.4%56.1%
C70Ruy Lopez, Caro variation8542.4%58.8%
E32Nimzo-Indian, classical variation638442.3%53.7%
E16Queen's Indian, Capablanca variation42342.3%56.9%
A40Queen's pawn, Charlick (Englund) gambit2642.3%59.6%
C89Ruy Lopez, Marshall, main line, 12.d2d421342.3%62.9%
C28Vienna game37442.2%53.2%
D17QGD Slav, Wiesbaden variation63542.2%57.0%
D40QGD, Semi-Tarrasch defence42242.2%54.7%
A28English, four knights, Stean variation8342.2%59.6%
C36KGA, Abbazia defence, modern variation26842.2%45.0%
E17Queen's Indian, old main line, 6.O-O96342.2%58.7%
C30King's gambit12142.1%60.7%
C00French, Schlechter variation17842.1%49.2%
B29Sicilian, Nimzovich-Rubinstein variation78842.1%59.0%
A00Benko's opening686642.1%52.3%
D52QGD, Cambridge Springs defence3842.1%47.4%
B45Sicilian, Taimanov, American attack1942.1%42.1%
C69Ruy Lopez, exchange variation, 5.O-O70842.1%53.8%
A12English, London defensive system12642.1%52.0%
C46Four knights, Italian variation17642.0%47.2%
D31QGD, Janowski variation16942.0%55.9%
C69Ruy Lopez, exchange variation, Alapin gambit28642.0%51.0%
D78Neo-Gruenfeld, 6.O-O c677742.0%54.7%
C64Ruy Lopez, classical (Cordel) defence23641.9%53.6%
C64Ruy Lopez, classical defence, 4.c326741.9%55.8%
C78Ruy Lopez, Archangelsk (counterthrust) variation157641.9%54.6%
B01Scandinavian gambit15541.9%53.2%
A13English, Wimpey system12441.9%50.8%
C70Ruy Lopez6241.9%54.8%
D08QGD, Albin counter-gambit16741.9%57.5%
A00Anderssen's opening41341.9%50.5%
C82Ruy Lopez, open, Dilworth variation16041.9%60.9%
B77Sicilian, dragon, Yugoslav attack, 9...Bd720341.9%55.4%
D11QGD Slav, 4.e3425041.8%55.4%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd20841.8%60.8%
D86Gruenfeld, exchange, Simagin's lesser variation5541.8%59.1%
B70Sicilian, dragon variation72741.8%51.6%
D87Gruenfeld, exchange, Spassky variation53141.8%55.6%
A01Nimzovich-Larsen attack, symmetrical variation70141.8%49.6%
B41Sicilian, Kan variation21341.8%55.6%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence35241.8%51.3%
B83Sicilian, modern Scheveningen43641.7%48.9%
A19English, Mikenas-Carls, Sicilian variation37441.7%54.5%
B21Sicilian, Smith-Morra gambit77241.7%47.4%
A06Reti, Nimzovich-Larsen attack339341.7%49.5%
B18Caro-Kann, classical, 6.h456641.7%53.9%
C44Scotch gambit, Dubois-Reti defence30041.7%51.5%
A64Benoni, fianchetto, 11...Re813241.7%45.1%
C46Three knights, Steinitz variation6041.7%54.2%
C41Philidor, Nimzovich, Rellstab variation3641.7%65.3%
C74Ruy Lopez, modern Steinitz defence, siesta variation2441.7%50.0%
C42Petrov, Damiano variation2441.7%50.0%
E36Nimzo-Indian, classical, Botvinnik variation1241.7%62.5%
C32KGD, Falkbeer, 5.de1241.7%37.5%
C58Two knights defence, Yankovich variation1241.7%20.8%
C55Two knights, Max Lange attack, Steinitz variation1241.7%62.5%
A58Benko gambit, Nd2 variation1241.7%62.5%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1241.7%54.2%
B01Scandinavian (centre counter) defence260441.6%57.1%
C88Ruy Lopez, Trajkovic counter-attack65141.6%52.0%
C44Ponziani, Steinitz variation47141.6%45.9%
C33KGA, bishop's gambit, Jaenisch variation11341.6%48.2%
A59Benko gambit, main line11841.5%66.5%
B15Caro-Kann, Forgacs variation22441.5%55.6%
D31QGD, 3.Nc384841.5%55.1%
E10Blumenfeld counter-gambit31841.5%55.0%
A07Reti, King's Indian attack242241.5%52.9%
B02Alekhine's defence, Scandinavian variation24641.5%52.8%
C77Ruy Lopez, Anderssen variation93441.4%51.6%
C88Ruy Lopez, closed124841.4%52.7%
D29QGA, classical, 8...Bb730941.4%47.9%
A39English, symmetrical, main line with d443541.4%57.0%
E26Nimzo-Indian, Saemisch, O'Kelly variation2941.4%51.7%
C82Ruy Lopez, open, St. Petersburg variation19141.4%65.7%
D51QGD, 4.Bg5 Nbd77541.3%54.0%
A07Reti, King's Indian attack (Barcza system)476041.3%53.5%
E46Nimzo-Indian, Simagin variation14341.3%50.0%
C68Ruy Lopez, exchange variation8041.3%51.9%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
D98Gruenfeld, Russian, Smyslov variation25741.2%60.3%
C26Vienna, Paulsen-Mieses variation53141.2%52.4%
A52Budapest, Rubinstein variation37141.2%60.2%
E21Nimzo-Indian, three knights variation248141.2%54.3%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation31341.2%58.9%
C65Ruy Lopez, Berlin defence, 4.O-O18241.2%58.5%
C61Ruy Lopez, Bird's defence21641.2%58.6%
B47Sicilian, Taimanov (Bastrikov) variation382241.2%54.2%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)25541.2%54.7%
D99Gruenfeld defence, Smyslov, main line17041.2%58.2%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
A12English, Bled variation1741.2%61.8%
C45Scotch, Blackburne attack1741.2%50.0%
C45Scotch, Mieses variation139141.1%54.2%
D43QGD semi-Slav699441.1%52.8%
D52QGD14641.1%58.9%
C17French, Winawer, advance variation5641.1%59.8%
A37English, symmetrical variation99641.1%50.5%
D11QGD Slav, 3.Nf3243341.1%55.7%
B85Sicilian, Scheveningen, classical13441.0%51.9%
C42Petrov, classical attack, Chigorin variation57541.0%57.0%
E67King's Indian, fianchetto, classical variation51941.0%55.6%
E00Queen's pawn game42441.0%56.4%
C80Ruy Lopez, open, 7.Bb348541.0%52.9%
A76Benoni, classical, 9...Re810041.0%63.5%
D02Queen's pawn game500541.0%52.7%
D24QGA, 4.Nc320541.0%50.7%
D10QGD Slav defence389341.0%54.1%
E83King's Indian, Saemisch, Panno formation22741.0%57.0%
A57Benko gambit, Zaitsev system8341.0%47.0%
A36English, symmetrical, Botvinnik system reversed8341.0%54.2%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)288441.0%56.1%
C21Danish gambit12740.9%48.8%
D18QGD Slav, Dutch variation28140.9%60.3%
D21QGA, 3.Nf328140.9%57.5%
A13English, Neo-Catalan73840.9%53.1%
C87Ruy Lopez, closed, Averbach variation26440.9%59.8%
B15Caro-Kann, Tartakower (Nimzovich) variation34040.9%55.4%
B32Sicilian, Labourdonnais-Loewenthal variation23540.9%59.1%
B39Sicilian, accelerated fianchetto, Breyer variation63940.8%58.3%
A29English, four knights, kingside fianchetto616540.8%51.9%
A46Queen's pawn, Yusupov-Rubinstein system79640.8%52.8%
A00Van't Kruijs opening50740.8%51.2%
A13English, Romanishin gambit26740.8%56.4%
E10Blumenfeld counter-gambit accepted12540.8%53.2%
C12French, MacCutcheon variation12540.8%49.2%
B23Sicilian, Grand Prix attack, Schofman variation15240.8%52.6%
D04Queen's pawn game80740.8%51.4%
C42Petrov, Paulsen attack15740.8%52.2%
D19QGD Slav, Dutch variation, main line22140.7%56.6%
E26Nimzo-Indian, Saemisch variation8640.7%57.6%
E62King's Indian, fianchetto, Larsen system29040.7%62.4%
B20Sicilian, Keres variation (2.Ne2)63940.7%52.4%
C84Ruy Lopez, closed defence134240.7%52.1%
B27Sicilian, Hungarian variation340740.7%57.5%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1473540.6%56.4%
A06Santasiere's folly12840.6%42.2%
C93Ruy Lopez, closed, Smyslov defence16540.6%57.9%
B01Scandinavian defence103840.6%59.5%
E53Nimzo-Indian, 4.e3, main line with ...c539740.6%54.3%
A43Old Benoni, Mujannah formation3740.5%66.2%
D35QGD, exchange, positional line101440.5%54.4%
A46Queen's pawn game315640.5%54.7%
C24Bishop's opening, Berlin defence110840.5%53.1%
D22QGA, Alekhine defence24740.5%54.7%
E11Bogo-Indian defence, Gruenfeld variation206540.5%56.0%
A31English, symmetrical, Benoni formation99140.5%56.1%
B23Sicilian, closed, 2...Nc6180240.5%51.6%
B09Pirc, Austrian attack18340.4%61.2%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc64740.4%52.1%
A25English, closed, 5.Rb144840.4%52.8%
E12Queen's Indian, 4.Nc3460740.4%53.2%
D45QGD semi-Slav, 5.e341140.4%56.2%
C77Ruy Lopez, Morphy defence, Duras variation5240.4%56.7%
B50Sicilian397040.3%53.2%
A23English, Bremen system, Keres variation61840.3%48.5%
A21English, Kramnik-Shirov counterattack213040.3%52.3%
D02Queen's pawn game, Chigorin variation42740.3%57.1%
C88Ruy Lopez, closed, 7...O-O288040.3%52.2%
C99Ruy Lopez, closed, Chigorin, 12...c5d490940.3%62.7%
B40Sicilian, Anderssen variation80340.2%57.3%
B30Sicilian defence268640.2%54.7%
B88Sicilian, Sozin, Leonhardt variation58740.2%54.5%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd455040.2%55.7%
C95Ruy Lopez, closed, Breyer, Borisenko variation73740.2%56.4%
A15English, 1...Nf6 (Anglo-Indian defense)115840.2%54.5%
C10French, Fort Knox variation60340.1%57.2%
A22English, Bremen, reverse dragon66840.1%50.6%
B13Caro-Kann, exchange variation84040.1%51.6%
A18English, Mikenas-Carls, Flohr variation33940.1%58.7%
A87Dutch, Leningrad, main variation34440.1%55.2%
C50Hungarian defence17740.1%50.0%
D00Blackmar gambit21240.1%40.8%
E52Nimzo-Indian, 4.e3, main line with ...b646940.1%53.5%
A01Nimzovich-Larsen attack, modern variation318540.1%50.7%
A22English, Carls' Bremen system42740.0%54.0%
D12QGD Slav, 4.e3 Bf5306340.0%54.4%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation121740.0%56.5%
E14Queen's Indian, 4.e3174240.0%53.5%
B44Sicilian, Szen (`anti-Taimanov') variation82040.0%53.7%
C29Vienna gambit21040.0%45.7%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit20040.0%57.5%
B12Caro-Kann, 3.Nd217040.0%60.6%
A28English, Nenarokov variation12040.0%51.7%
C86Ruy Lopez, Worrall attack, solid line8040.0%47.5%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
A92Dutch defence, Alekhine variation3540.0%62.9%
C10French, Frere (Becker) variation2540.0%60.0%
C41Philidor, Nimzovich (Jaenisch) variation2040.0%45.0%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation2040.0%35.0%
C20KP, Mengarini's opening2040.0%25.0%
A92Dutch, stonewall with Nc32040.0%45.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system2040.0%55.0%
B20Sicilian, wing gambit, Carlsbad variation1540.0%46.7%
D98Gruenfeld, Russian, Keres variation1540.0%46.7%
C49Four knights, Janowski variation1540.0%60.0%
B71Sicilian, dragon, Levenfish; Flohr variation1040.0%60.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1040.0%60.0%
A66Benoni, pawn storm variation540.0%60.0%
C56Two knights defence, Canal variation540.0%40.0%
C64Ruy Lopez, classical defence, Charousek variation540.0%80.0%
A00Ware (Meadow Hay) opening540.0%60.0%
B83Sicilian, Scheveningen, 6.Be254340.0%52.8%
B92Sicilian, Najdorf, Opovcensky variation511040.0%53.3%
A13English opening, Agincourt variation132239.9%53.9%
A07Reti, King's Indian attack, Yugoslav variation167439.9%53.0%
C64Ruy Lopez, classical defence, Benelux variation 40139.9%56.4%
D48QGD semi-Slav, Meran, Reynolds' variation75739.9%56.3%
D31QGD, semi-Slav105339.9%54.9%
A11English, Caro-Kann defensive system136739.9%53.7%
D86Gruenfeld, exchange, Simagin's improved variation12339.8%52.4%
A43Old Benoni, Franco-Benoni defence12339.8%58.9%
B11Caro-Kann, Two knights, 3...Bg489439.8%56.3%
A05Reti, King's Indian attack122339.8%53.6%
E15Queen's Indian, 4.g3 Bb728439.8%54.0%
D25QGA, Janowsky-Larsen variation36739.8%57.5%
C17French, Winawer, advance, Bogolyubov variation35739.8%51.0%
A30English, symmetrical variation307539.8%54.8%
A24English, Bremen system with ...g616639.8%48.2%
B25Sicilian, closed, 6.f443339.7%51.0%
D20QGA, 3.e4295839.7%56.4%
A49King's Indian, fianchetto without c4118639.7%57.0%
C45Scotch, Potter variation52939.7%51.6%
B03Alekhine's defence, exchange variation66039.7%57.9%
B56Sicilian162539.7%53.4%
C48Four knights, Rubinstein counter-gambit107139.7%52.5%
B19Caro-Kann, classical, Spassky variation269039.7%56.6%
A70Benoni, classical with e4 and Nf359039.7%59.5%
A34English, symmetrical variation105439.7%54.6%
E39Nimzo-Indian, classical, Pirc variation96139.6%55.1%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)127939.6%49.1%
B93Sicilian, Najdorf, 6.f4158739.6%50.7%
D91Gruenfeld, 5.Bg590639.6%48.2%
D15QGD Slav, 4.Nc3400339.6%54.8%
A88Dutch, Leningrad, main variation with c688939.6%57.9%
C65Ruy Lopez, Berlin defence302639.6%51.2%
E17Queen's Indian, Opovcensky variation69539.6%54.9%
C88Ruy Lopez, closed, anti-Marshall 8.a4156339.5%53.7%
E60King's Indian, 3.Nf3284139.5%57.6%
B28Sicilian, O'Kelly variation40539.5%57.0%
C11French defence16239.5%56.2%
A57Benko gambit half accepted82839.5%58.2%
D47QGD semi-Slav, Meran, Wade variation692239.5%53.6%
B44Sicilian, Szen, hedgehog variation22839.5%50.9%
E16Queen's Indian, Riumin variation22339.5%56.1%
B09Pirc, Austrian attack, 6.Bd3115639.4%59.7%
C77Ruy Lopez, Morphy defence20839.4%56.3%
A17English, Nimzo-English opening182539.4%53.6%
D03Torre attack (Tartakower variation)66839.4%51.0%
D25QGA, 4.e312739.4%57.5%
C62Ruy Lopez, old Steinitz defence28239.4%54.8%
E08Catalan, closed, 7.Qc29439.4%61.2%
C02French, advance, Wade variation34339.4%57.3%
D70Neo-Gruenfeld defence21639.4%55.3%
C94Ruy Lopez, closed, Breyer defence6139.3%57.4%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation6139.3%67.2%
C00French, Reti (Spielmann) variation17839.3%50.6%
E11Bogo-Indian defence156039.3%54.6%
B57Sicilian, Sozin, Benko variation129839.3%51.6%
C44Ponziani, Fraser defence5639.3%66.1%
E29Nimzo-Indian, Saemisch, Capablanca variation2839.3%41.1%
A09Reti, advance variation91739.3%48.6%
A28English, four knights, Marini variation83339.3%51.1%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f426539.2%54.0%
A09Reti accepted26539.2%52.8%
E81King's Indian, Saemisch, Byrne variation7939.2%53.8%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation25539.2%54.1%
B07Pirc, Ufimtsev-Pytel variation40339.2%59.3%
D19QGD Slav, Dutch variation133539.2%57.3%
A00Polish (Sokolsky) opening181939.1%48.9%
A84Dutch defence58039.1%57.0%
A48King's Indian, Torre attack163839.1%49.7%
D17QGD Slav, Krause attack71339.1%58.3%
C53Giuoco Piano, close variation4639.1%58.7%
B62Sicilian, Richter-Rauzer, 6...e64639.1%58.7%
C38King's knight's gambit2339.1%28.3%
E51Nimzo-Indian, 4.e3, Ragozin variation2339.1%67.4%
A80Dutch, Manhattan (Alapin, Ulvestad) variation2339.1%58.7%
B15Caro-Kann, Alekhine gambit2339.1%50.0%
B32Sicilian, Nimzovich variation2339.1%54.3%
A53Old Indian defence102839.1%56.8%
D00Queen's pawn, Mason variation99539.1%52.6%
A09Reti opening64539.1%53.5%
B10Caro-Kann, Goldman (Spielmann) variation10039.0%50.5%
A22English, Bremen, Smyslov system153739.0%48.8%
A90Dutch defence102939.0%60.9%
C91Ruy Lopez, closed, 9.d4121939.0%57.8%
D10QGD Slav defence, Alekhine variation26238.9%55.0%
B32Sicilian defence84038.9%55.8%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd242438.9%61.2%
C23Bishop's opening, Classical variation5438.9%52.8%
B40Sicilian defence517738.9%53.8%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation8538.8%55.9%
B95Sicilian, Najdorf, 6...e6108538.8%49.3%
A40Queen's pawn, Franco-Indian (Keres) defence113438.8%56.3%
B09Pirc, Austrian attack, dragon formation77638.8%58.3%
D52QGD, Cambridge Springs defence, Rubinstein variation16538.8%54.5%
E11Bogo-Indian defence, Nimzovich variation148938.8%57.6%
B42Sicilian, Kan, Gipslis variation8038.8%63.1%
B84Sicilian, Scheveningen (Paulsen), classical variation367038.7%52.1%
E68King's Indian, fianchetto, classical variation, 8.e4125838.7%59.7%
B43Sicilian, Kan, 5.Nc3295838.7%56.4%
B04Alekhine's defence, modern, Schmid variation15038.7%60.7%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)188138.6%56.3%
A12English, Torre defensive system4438.6%58.0%
C41Philidor, Improved Hanham variation102038.6%57.0%
D89Gruenfeld, Spassky variation, main line, 13.Bd37038.6%49.3%
A20English, Nimzovich variation7038.6%59.3%
C50Giuoco Piano79638.6%52.4%
A69Benoni, four pawns attack, main line8338.6%47.0%
A33English, symmetrical, Geller variation62838.5%53.8%
B46Sicilian, Taimanov variation314338.5%55.2%
C15French, Winawer, Alekhine (Maroczy) gambit18738.5%55.1%
E20Nimzo-Indian, Kmoch variation76938.5%53.8%
C80Ruy Lopez, open, 8...Be6124238.5%43.2%
A45Queen's pawn game238838.5%54.0%
B33Sicilian, Sveshnikov variation138538.5%50.8%
A47Queen's Indian defence52038.5%52.1%
D35QGD, 3...Nf69138.5%48.9%
C36KGA, Abbazia defence (classical defence, modern defence[!])5238.5%67.3%
C01French, exchange, Svenonius variation3938.5%57.7%
D46QGD semi-Slav, 6.Bd33938.5%62.8%
A44Old Benoni defence2638.5%61.5%
A45Canard opening1338.5%26.9%
A22English, Bellon gambit1338.5%57.7%
D33QGD, Tarrasch, Wagner variation1338.5%57.7%
C11French, Henneberger variation1338.5%50.0%
C55Two knights defence (Modern bishop's opening)135338.4%56.2%
A48King's Indian, London system111938.4%53.9%
D16QGD Slav accepted, Alapin variation17738.4%65.5%
B10Caro-Kann, closed (Breyer) variation74238.4%52.8%
B72Sicilian, dragon, classical attack9938.4%52.5%
B96Sicilian, Najdorf, Polugayevsky variation9938.4%52.5%
E76King's Indian, Four pawns attack, dynamic line17238.4%52.3%
C13French, Albin-Alekhine-Chatard attack, Breyer variation8638.4%63.4%
E29Nimzo-Indian, Saemisch, main line8638.4%56.4%
A04Reti opening781538.4%54.2%
C52Evans gambit30538.4%46.4%
A17English opening21938.4%53.0%
D45QGD semi-Slav, 5...Nd754538.3%53.1%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation13338.3%64.3%
B54Sicilian, Prins (Moscow) variation44638.3%57.7%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation6038.3%50.8%
B15Caro-Kann, Gurgenidze system32138.3%58.1%
C50Giuoco Pianissimo175738.3%53.2%
A10English, Adorjan defence48338.3%53.7%
E96King's Indian, orthodox, 7...Nbd7, main line4738.3%59.6%
A34English, symmetrical, Rubinstein system38738.2%52.5%
C15French, Winawer, fingerslip variation3438.2%33.8%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation3438.2%48.5%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)455138.2%56.3%
B08Pirc, classical system, 5.Be2235538.2%57.3%
D02Queen's bishop game136638.2%53.6%
A20English opening569738.2%54.3%
C17French, Winawer, advance, Russian variation5538.2%53.6%
A90Dutch-Indian, Alekhine variation5538.2%60.9%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack170338.2%55.5%
E76King's Indian, Four pawns attack22838.2%59.4%
A55Old Indian, main line43038.1%58.4%
C22Centre game, Paulsen attack21538.1%50.7%
E17Queen's Indian, anti-Queen's Indian system33338.1%53.0%
A36English, ultra-symmetrical variation135338.1%52.8%
B06Robatsch defence, Two knights, Suttles variation101038.1%58.5%
B45Sicilian, Taimanov variation195238.1%56.5%
C42Petrov three knights game26538.1%57.2%
C11French, Steinitz variation100538.1%54.7%
C46Three knights game14738.1%54.4%
C12French, MacCutcheon, Chigorin variation6338.1%47.6%
E15Queen's Indian, Buerger variation4238.1%61.9%
D94Gruenfeld with e3 Bd32138.1%52.4%
C41Philidor, Hanham, Steiner variation2138.1%66.7%
C55Two knights, Max Lange attack2138.1%52.4%
B23Sicilian, closed320338.1%51.7%
C53Giuoco Piano211438.1%52.6%
A99Dutch, Ilyin-Genevsky variation with b313438.1%62.3%
C00French, Two knights variation24738.1%51.8%
B12Caro-Kann, advance variation1024638.1%56.3%
A10English opening275438.1%54.8%
C86Ruy Lopez, Worrall attack, sharp line22638.1%53.1%
A18English, Mikenas-Carls variation18438.0%57.6%
E90King's Indian, Larsen variation9238.0%61.4%
B90Sicilian, Najdorf, Adams attack122038.0%52.4%
C59Two knights defence19238.0%49.2%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation73438.0%53.9%
B02Alekhine's defence, Saemisch attack27138.0%49.6%
A48King's Indian, East Indian defence86638.0%51.8%
B12Caro-Kann, Tartakower (fantasy) variation67738.0%55.9%
E61King's Indian, Smyslov system8737.9%54.6%
B06Robatsch defence, Gurgenidze variation5837.9%62.1%
A03Bird's opening, Williams gambit2937.9%63.8%
C22Centre game, Berger variation36437.9%53.8%
E84King's Indian, Saemisch, Panno main line43037.9%52.7%
D97Gruenfeld, Russian, Byrne (Simagin) variation12437.9%59.3%
C20KP, Indian opening6637.9%44.7%
C67Ruy Lopez, open Berlin defence, 5...Be77437.8%52.7%
E63King's Indian, fianchetto, Panno variation217337.8%57.1%
D00Queen's pawn game66137.8%50.2%
A47Queen's Indian, Marienbad system8237.8%54.3%
D90Gruenfeld, Flohr variation29937.8%56.0%
D31QGD, semi-Slav, Noteboom variation26237.8%51.7%
A81Dutch defence332437.8%56.6%
D52QGD, Cambridge Springs defence, 7.cd4537.8%54.4%
C80Ruy Lopez, open, 6.d44537.8%45.6%
E44Nimzo-Indian, Fischer variation, 5.Ne242137.8%55.5%
A83Dutch, Staunton gambit, Staunton's line14337.8%50.3%
C41Philidor, exchange variation75537.7%58.9%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7111937.7%55.9%
A50Queen's pawn game65537.7%56.0%
A05Reti, King's Indian attack, Reti-Smyslov variation6137.7%54.9%
B42Sicilian, Kan, 5.Bd3189237.7%58.2%
E38Nimzo-Indian, classical, 4...c560837.7%60.1%
D44QGD semi-Slav, Botvinnik system (anti-Meran)7737.7%56.5%
A22English opening73337.7%51.3%
A37English, symmetrical, Botvinnik system reversed74937.7%50.9%
B54Sicilian85037.6%55.3%
C44King's pawn game8537.6%51.8%
E64King's Indian, fianchetto, Yugoslav system10137.6%60.4%
B33Sicilian, Pelikan, Bird variation23437.6%62.8%
D52QGD, Cambridge Springs defence, Yugoslav variation41037.6%56.1%
B25Sicilian, closed26937.5%49.3%
C22Centre game40537.5%46.2%
C50Giuoco Pianissimo, Italian four knights variation40837.5%51.3%
B07Pirc, 150 attack24037.5%60.4%
D47QGD semi-Slav, 7.Bc46437.5%53.1%
C57Two knights defence, Wilkes Barre (Traxler) variation5637.5%56.3%
B00St. George (Baker) defence4037.5%61.3%
D32QGD, Tarrasch defence, 4.cd ed2437.5%52.1%
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%
C33KGA, bishop's gambit, Bogolyubov variation2437.5%43.8%
C13French, classical, Tartakower variation2437.5%47.9%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
C44Scotch, Lolli variation1637.5%56.3%
C68Ruy Lopez, exchange, Alekhine variation1637.5%43.8%
C45Scotch, Tartakower variation1637.5%43.8%
C45Scotch, Blumenfeld attack1637.5%31.3%
C38KGA, Hanstein gambit837.5%43.8%
C13French, classical, Frankfurt variation837.5%81.3%
A00Durkin's attack837.5%31.3%
B00Lemming defence837.5%56.3%
C29Vienna gambit, Kaufmann variation837.5%68.8%
B74Sicilian, dragon, classical, Spielmann variation837.5%56.3%
C30KGD, Mafia defence837.5%68.8%
C06French, Tarrasch, closed variation, main line100637.5%59.8%
C96Ruy Lopez, closed, Keres (...Nd7) defence21137.4%65.6%
C12French, MacCutcheon, Janowski variation13937.4%57.6%
A12English, Caro-Kann defensive system22237.4%48.4%
E16Queen's Indian, Yates variation38037.4%58.7%
A06Reti opening62937.4%53.0%
C00French, King's Indian attack220337.3%51.4%
B10Caro-Kann, Two knights variation37837.3%59.7%
A40Modern defence100037.3%57.0%
A96Dutch, classical variation24437.3%59.6%
B08Pirc, classical, h3 system41337.3%58.8%
D63QGD, Orthodox defence, 7.Rc122837.3%57.7%
B08Pirc, classical (two knights) system60137.3%58.6%
E94King's Indian, orthodox variation100937.3%54.0%
D00Queen's pawn, Mason variation, Steinitz counter-gambit50237.3%50.7%
B89Sicilian, Sozin, 7.Be3103437.2%50.6%
C25Vienna game27437.2%59.5%
A97Dutch, Ilyin-Genevsky, Winter variation8637.2%65.1%
B27Sicilian, Quinteros variation4337.2%60.5%
A26English, closed system31237.2%51.6%
B07Robatsch defence, Geller's system60837.2%57.4%
D16QGD Slav, Steiner variation22637.2%62.8%
C65Ruy Lopez, Berlin defence, Beverwijk variation51437.2%57.5%
B05Alekhine's defence, modern, Flohr variation14037.1%62.9%
A86Dutch with c4 & g310537.1%64.3%
E85King's Indian, Saemisch, orthodox variation7037.1%52.9%
C47Four knights, Scotch, Krause variation3537.1%64.3%
A40Queen's pawn219737.1%55.2%
A08Reti, King's Indian attack, French variation26437.1%48.9%
C39KGA, Kieseritsky, Berlin defence6237.1%42.7%
A26English, Botvinnik system32937.1%52.3%
B48Sicilian, Taimanov variation329137.1%56.2%
A05Reti opening364837.1%53.4%
D33QGD, Tarrasch, Prague variation8137.0%53.1%
C88Ruy Lopez, closed, 8.c32737.0%63.0%
A28English, four knights, 4.e3100837.0%51.8%
A07Reti, King's Indian attack, Pachman system11937.0%52.9%
A54Old Indian, Ukrainian variation, 4.Nf323037.0%57.2%
D12QGD Slav, exchange variation9237.0%50.0%
B58Sicilian, Boleslavsky, Louma variation4637.0%57.6%
C90Ruy Lopez, closed (with ...d6)119436.9%51.5%
B07Pirc defence175036.9%55.7%
B63Sicilian, Richter-Rauzer, Rauzer attack14936.9%57.4%
A42Pterodactyl defence32036.9%63.8%
C23Bishop's opening17936.9%54.2%
A01Nimzovich-Larsen attack71136.8%53.3%
D00Queen's pawn, stonewall attack5736.8%43.0%
A52Budapest defence3836.8%52.6%
C57Two knights defence, Lolli attack1936.8%55.3%
C52Evans gambit, Richardson attack1936.8%28.9%
E74King's Indian, Averbakh, 6...c527736.8%56.0%
A41Robatsch defence, Rossolimo variation14436.8%50.3%
D06QGD, Grau (Sahovic) defence12536.8%61.6%
C73Ruy Lopez, modern Steinitz defence, Alapin variation10636.8%51.4%
B58Sicilian, Boleslavsky variation43536.8%48.0%
D46QGD semi-Slav, Romih variation17436.8%63.8%
A17English, Queens Indian formation24236.8%60.5%
C19French, Winawer, advance, 6...Ne735136.8%57.4%
B03Alekhine's defence, four pawns attack, 7.Be311736.8%67.9%
D17QGD Slav, Carlsbad variation47936.7%60.5%
A78Benoni, classical with ...Re8 and ...Na64936.7%61.2%
D00Levitsky attack (Queen's bishop attack)196636.7%52.0%
A13English opening197736.7%52.0%
C41Philidor's defence26736.7%60.3%
B00King's pawn opening154536.7%57.2%
E15Queen's Indian, Rubinstein variation13936.7%59.4%
E91King's Indian, Kazakh variation30036.7%56.0%
B83Sicilian, modern Scheveningen, main line with Nb39036.7%56.1%
D40QGD, Semi-Tarrasch defence, Pillsbury variation3036.7%58.3%
B23Sicilian, Grand Prix attack74536.6%50.0%
E67King's Indian, fianchetto with ...Nd710136.6%56.9%
E07Catalan, closed, 6...Nbd77136.6%52.1%
E30Nimzo-Indian, Leningrad variation63436.6%48.3%
A20English, Nimzovich, Flohr variation16436.6%46.3%
A46Queen's pawn, Torre attack138136.6%52.2%
B87Sicilian, Sozin with ...a6 and ...b577436.6%51.1%
E53Nimzo-Indian, 4.e3, Keres variation10436.5%47.1%
D60QGD, Orthodox defence10436.5%55.8%
C78Ruy Lopez, ...b5 & ...d65236.5%52.9%
C44Scotch gambit5236.5%62.5%
B34Sicilian, accelerated fianchetto, modern variation35636.5%51.7%
C50Giuoco Piano, four knights variation6336.5%53.2%
E43Nimzo-Indian, Fischer variation58936.5%54.1%
B13Caro-Kann, exchange, Rubinstein variation13736.5%53.3%
A02Bird's opening315736.4%49.0%
A16English, Anglo-Gruenfeld defense, Korchnoi variation8836.4%58.0%
C00French, Pelikan variation6636.4%53.0%
B56Sicilian, Venice attack5536.4%65.5%
C88Ruy Lopez, closed, Balla variation4436.4%54.5%
C51Evans gambit, 5...Be74436.4%59.1%
E83King's Indian, Saemisch, Ruban variation1136.4%45.5%
C14French, classical, Pollock variation1136.4%45.5%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
C02French, advance, Nimzovich variation1136.4%45.5%
B42Sicilian, Kan, Polugaievsky variation142836.3%54.2%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation30636.3%61.3%
D01Richter-Veresov attack47536.2%45.9%
A28English, four knights, Capablanca variation46436.2%53.9%
A02Bird, From gambit16336.2%50.6%
B90Sicilian, Najdorf275336.2%53.9%
B06Robatsch (modern) defence608536.2%56.3%
D67QGD, Orthodox defence, Bd3 line, 11.O-O4736.2%64.9%
B24Sicilian, closed46236.1%50.8%
E61King's Indian defence, 3.Nc387736.1%55.4%
A82Dutch, Staunton gambit11936.1%36.6%
D52QGD, Cambridge Springs defence, Capablanca variation3636.1%59.7%
A25English, closed, Hort variation3636.1%54.2%
E40Nimzo-Indian, 4.e3, Taimanov variation9736.1%63.4%
C02French, advance, Euwe variation135036.1%54.0%
C49Four knights, symmetrical, Metger unpin33336.0%51.1%
B72Sicilian, dragon, 6.Be310036.0%54.0%
C53Giuoco Piano, centre-holding variation5036.0%62.0%
C33KGA, bishop's gambit, Morphy variation2536.0%54.0%
C45Scotch, Horwitz attack2536.0%66.0%
B33Sicilian, Pelikan, Chelyabinsk variation210936.0%57.2%
B33Sicilian defence45636.0%54.2%
A89Dutch, Leningrad, main variation with Nc638136.0%63.6%
D07QGD, Chigorin defence77135.9%57.0%
B90Sicilian, Najdorf, Lipnitzky attack97535.9%49.6%
C58Two knights defence19535.9%56.4%
B82Sicilian, Scheveningen, Tal variation11735.9%62.4%
A36English, symmetrical variation11735.9%53.8%
C41Philidor, Hanham variation3935.9%61.5%
D23Queen's gambit accepted3935.9%53.8%
A45Trompovsky attack (Ruth, Opovcensky opening)408035.9%52.5%
D55QGD, 6.Nf313135.9%57.6%
A03Bird's opening310035.9%47.6%
A41Queen's Pawn199935.9%54.6%
B20Sicilian defence217335.8%50.4%
A36English, symmetrical, Botvinnik system15935.8%51.3%
A97Dutch, Ilyin-Genevsky variation5335.8%55.7%
C44Scotch gambit, Benima defence5335.8%55.7%
A27English, three knights system64235.8%53.3%
B06Robatsch defence70935.8%58.1%
B03Alekhine's defence, four pawns attack, Trifunovic variation6735.8%68.7%
A01Nimzovich-Larsen attack, classical variation123435.8%49.4%
B02Alekhine's defence59235.8%54.9%
A57Benko gambit68735.8%56.2%
A50Kevitz-Trajkovich defence39435.8%56.0%
E60King's Indian defence76335.8%55.8%
D31QGD, semi-Slav, Abrahams variation13735.8%44.2%
A00Dunst (Sleipner, Heinrichsen) opening179035.8%49.3%
A16English opening131335.7%53.4%
C12French, MacCutcheon, Lasker variation, 8...g637835.7%59.4%
A35English, symmetrical variation23835.7%51.5%
D48QGD semi-Slav, Meran, old main line11235.7%52.7%
E62King's Indian, fianchetto, Simagin variation8435.7%64.3%
C37KGA, Blachly gambit2835.7%28.6%
D50QGD, Semi-Tarrasch1435.7%53.6%
C66Ruy Lopez, closed Berlin defence, Bernstein variation1435.7%53.6%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1435.7%60.7%
C65Ruy Lopez, Berlin defence, Duras variation1435.7%53.6%
B60Sicilian, Richter-Rauzer70335.7%58.5%
D05Queen's pawn game61135.7%52.7%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation99335.6%55.2%
E95King's Indian, orthodox, 7...Nbd7, 8.Re135135.6%56.0%
C67Ruy Lopez, Berlin defence, Cordel variation5935.6%58.5%
B12Caro-Kann defence22235.6%53.8%
B42Sicilian, Kan, Swiss cheese variation26735.6%61.2%
C11French, Steinitz, Boleslavsky variation342735.6%57.3%
A84Dutch defence, Rubinstein variation29835.6%58.4%
B21Sicilian, Grand Prix attack153835.6%52.4%
B41Sicilian, Kan, Maroczy bind (Reti variation)47835.6%57.9%
B02Alekhine's defence, Maroczy variation9035.6%57.8%
A85Dutch with c4 & Nc367835.5%54.6%
B07Pirc, Sveshnikov system30435.5%52.6%
C90Ruy Lopez, closed, Pilnik variation82535.5%51.7%
B04Alekhine's defence, modern variation24835.5%60.9%
C14French, classical, Steinitz variation74235.4%58.2%
E24Nimzo-Indian, Saemisch, Botvinnik variation4835.4%40.6%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation21235.4%61.6%
B10Caro-Kann defence224235.4%52.9%
B84Sicilian, Scheveningen, classical, Nd7 system8235.4%50.6%
A80Dutch220035.3%54.8%
B94Sicilian, Najdorf, 6.Bg579935.3%52.9%
E93King's Indian, Petrosian system, main line8535.3%50.6%
C35KGA, Cunningham defence6835.3%50.0%
A45Paleface attack3435.3%47.1%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc1735.3%70.6%
E23Nimzo-Indian, Spielmann, Karlsbad variation1735.3%41.2%
B90Sicilian, Najdorf, Byrne (English) attack1947735.3%53.2%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack127335.3%58.2%
C50King's pawn game22435.3%60.0%
E73King's Indian, 5.Be23735.1%58.1%
E60Queen's pawn, Mengarini attack3735.1%60.8%
C14French, classical, Rubinstein variation3735.1%58.1%
A43Old Benoni defence155335.1%58.2%
C90Ruy Lopez, closed, Suetin variation7735.1%56.5%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation17435.1%57.2%
E94King's Indian, orthodox, Donner variation20035.0%60.0%
A93Dutch, stonewall, Botwinnik variation12035.0%61.7%
C44Ponziani, Leonhardt variation10035.0%48.5%
C46Three knights, Schlechter variation2035.0%52.5%
C95Ruy Lopez, closed, Breyer, Simagin variation2035.0%57.5%
E71King's Indian, Makagonov system (5.h3)75835.0%59.6%
C31KGD, Nimzovich counter-gambit6334.9%50.8%
C83Ruy Lopez, open, 9...Be7, 10.Re14334.9%54.7%
C39KGA, Kieseritsky, Berlin defence, 6.Bc44334.9%36.0%
D44QGD semi-Slav, anti-Meran gambit76634.9%58.2%
C00French defence58334.8%57.2%
B96Sicilian, Najdorf, 7.f4135334.8%51.6%
E62King's Indian, fianchetto variation6934.8%52.2%
A04Reti v Dutch106434.8%58.7%
E13Queen's Indian, 4.Nc3, main line21634.7%53.0%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation34334.7%51.5%
A01Nimzovich-Larsen attack, Indian variation30934.6%48.7%
A62Benoni, fianchetto variation80034.6%55.8%
A13English, Kurajica defence7834.6%57.1%
B71Sicilian, dragon, Levenfish variation7834.6%55.8%
C20King's pawn game2634.6%48.1%
B85Sicilian, Scheveningen, classical, Maroczy system2634.6%55.8%
A25English, Sicilian reversed81534.6%52.8%
E66King's Indian, fianchetto, Yugoslav Panno31834.6%56.9%
E82King's Indian, Saemisch, double fianchetto variation11034.5%57.3%
D20QGA, Linares variation8434.5%62.5%
A41Old Indian, Tartakower (Wade) variation101134.5%61.1%
E72King's Indian with e4 & g35834.5%56.9%
C67Ruy Lopez, Berlin defence, Winawer attack2934.5%69.0%
E92King's Indian, classical variation2934.5%41.4%
B76Sicilian, dragon, Yugoslav attack, 7...O-O32534.5%52.9%
A80Dutch, Krejcik gambit26734.5%53.9%
B81Sicilian, Scheveningen, Keres attack221834.4%59.6%
C33KGA, bishop's gambit9034.4%52.8%
E94King's Indian, orthodox, 7...Nbd792134.4%59.7%
D07QGD, Chigorin defence, Janowski variation9334.4%63.4%
A25English, closed system75934.4%54.3%
B23Sicilian, chameleon variation62634.3%57.7%
C74Ruy Lopez, modern Steinitz defence6734.3%56.0%
C69Ruy Lopez, exchange, Bronstein variation50434.3%50.5%
C16French, Winawer, advance variation81034.3%57.4%
E92King's Indian, Gligoric-Taimanov system148934.3%58.5%
A07Reti, King's Indian attack, Keres variation72334.3%54.5%
B04Alekhine's defence, modern, fianchetto variation70634.3%57.2%
E46Nimzo-Indian, 4.e3 O-O7334.2%56.8%
A12English, Capablanca's variation7634.2%47.4%
B62Sicilian, Richter-Rauzer, Keres variation7634.2%50.0%
E70King's Indian, accelerated Averbakh system12334.1%56.1%
B06Robatsch defence, Pseudo-Austrian attack51034.1%54.9%
A16English, Anglo-Gruenfeld, Czech defense17034.1%63.5%
B04Alekhine's defence, modern, Keres variation4734.0%72.3%
C02French, advance, Steinitz variation38234.0%54.7%
D00Queen's pawn, Chigorin variation34134.0%51.6%
B00Owen defence30034.0%61.7%
A53Old Indian, Janowski variation15034.0%55.7%
C02French, advance, Milner-Barry gambit10034.0%47.0%
B06Robatsch defence, Two knights variation33633.9%60.4%
E09Catalan, closed, main line23033.9%61.3%
A51Budapest, Fajarowicz variation5933.9%62.7%
E81King's Indian, Saemisch, 5...O-O214633.9%55.4%
A10English, Anglo-Dutch defense70633.9%52.3%
C44Ponziani opening32233.9%45.2%
D72Neo-Gruenfeld, 5.cd, main line19533.8%60.5%
B89Sicilian, Velimirovic attack74533.8%51.5%
C51Evans gambit, Stone-Ware variation21033.8%49.8%
D60QGD, Orthodox defence, Botvinnik variation7133.8%50.7%
E73King's Indian, Averbakh system101833.8%55.2%
A68Benoni, four pawns attack7733.8%58.4%
A58Benko gambit accepted71133.8%59.2%
E91King's Indian, 6.Be260833.7%64.7%
A86Dutch, Leningrad variation18133.7%58.3%
E10Blumenfeld counter-gambit, Spielmann variation10133.7%58.4%
C02French, advance, Paulsen attack178233.6%54.7%
E80King's Indian, Saemisch variation36633.6%58.9%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6568933.6%51.5%
A01Nimzovich-Larsen attack, English variation25933.6%51.5%
B80Sicilian, Scheveningen, fianchetto variation19433.5%51.3%
E69King's Indian, fianchetto, classical main line44533.5%62.1%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation29333.4%58.4%
C19French, Winawer, advance, poisoned pawn variation257333.4%61.1%
B76Sicilian, dragon, Yugoslav attack, Rauser variation92633.4%64.6%
A56Benoni defence64533.3%59.9%
B32Sicilian, Flohr variation23433.3%60.3%
B01Scandinavian defence, Lasker variation11733.3%64.5%
B77Sicilian, dragon, Yugoslav attack, 9.Bc410833.3%50.9%
A91Dutch defence10833.3%52.8%
B03Alekhine's defence10833.3%62.0%
C29Vienna gambit, Breyer variation10233.3%52.9%
C12French, MacCutcheon, Dr. Olland (Dutch) variation8433.3%60.7%
C05French, Tarrasch, Botvinnik variation5733.3%64.0%
B12Caro-Kann, advance, Short variation4833.3%52.1%
C45Scotch, Steinitz variation4233.3%54.8%
C34KGA, Schallop defence3933.3%62.8%
E89King's Indian, Saemisch, orthodox main line3033.3%60.0%
A00Novosibirsk opening2133.3%50.0%
B24Sicilian, closed, Smyslov variation2133.3%54.8%
B03Alekhine's defence, Balogh variation1833.3%61.1%
B27Sicilian defence1833.3%55.6%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1533.3%43.3%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C00French, Reversed Philidor formation1233.3%58.3%
A45Queen's pawn, Bronstein gambit1233.3%50.0%
C58Two knights defence, Paoli variation933.3%72.2%
C37KGA, Quaade gambit933.3%27.8%
C29Vienna gambit, Steinitz variation633.3%33.3%
D55QGD, Neo-orthodox variation633.3%50.0%
D32QGD, Tarrasch defence, Marshall gambit633.3%50.0%
C43Petrov, Urusov gambit633.3%83.3%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence633.3%33.3%
A00Grob, spike attack633.3%33.3%
C57Two knights defence, Fritz, Gruber variation633.3%50.0%
C20KP, Napoleon's opening633.3%50.0%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit333.3%50.0%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
C53Giuoco Piano, Mestel variation333.3%83.3%
C33King's gambit accepted333.3%16.7%
C45Scotch, Paulsen attack333.3%83.3%
C01French, exchange, Bogolyubov variation333.3%50.0%
A83Dutch, Staunton gambit, Alekhine variation333.3%50.0%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C50Rousseau gambit333.3%50.0%
C37KGA, Cochrane gambit333.3%50.0%
C32KGD, Falkbeer, Keres variation333.3%83.3%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd333.3%16.7%
A00Lasker simul special333.3%50.0%
C33KGA, Breyer gambit333.3%50.0%
C37KGA, Silberschmidt gambit333.3%50.0%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7278633.3%55.6%
B97Sicilian, Najdorf, 7...Qb6158133.2%46.4%
A21English opening149733.2%55.5%
E41Nimzo-Indian, e3, Huebner variation48533.2%51.9%
E62King's Indian, fianchetto with ...Nc623833.2%54.8%
A80Dutch, 2.Bg5 variation101333.2%54.6%
E70King's Indian, 4.e497133.2%58.3%
A28English, four knights, Nimzovich variation54933.2%54.6%
C18French, Winawer, classical variation33533.1%58.1%
D10QGD Slav, Winawer counter-gambit16633.1%55.1%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)401033.1%56.0%
E92King's Indian, Petrosian system, Stein variation59533.1%54.0%
C96Ruy Lopez, closed (10...c5)64433.1%64.7%
C11French, Steinitz, Gledhill attack11833.1%54.7%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation56633.0%60.5%
E90King's Indian, 5.Nf386433.0%57.2%
B05Alekhine's defence, modern variation, 4...Bg461933.0%64.1%
A63Benoni, fianchetto, 9...Nbd78833.0%67.6%
A42Modern defence, Averbakh system43832.9%58.7%
D16QGD Slav, Smyslov variation7332.9%58.9%
B10Caro-Kann, anti-Caro-Kann defence55732.9%60.4%
C17French, Winawer, advance, 5.a339032.8%63.3%
B07Pirc, Byrne variation38432.8%57.3%
C10French, Paulsen variation70132.8%59.1%
B00KP, Nimzovich defence55532.6%59.2%
B26Sicilian, closed, 6.Be360132.6%49.9%
C25Vienna, Paulsen variation9232.6%58.7%
B82Sicilian, Scheveningen, 6.f450332.6%57.3%
B98Sicilian, Najdorf, 7...Be712632.5%54.4%
C00French, Chigorin variation86732.5%50.2%
C02French, advance variation120932.5%56.0%
B03Alekhine's defence, four pawns attack, fianchetto variation12032.5%59.6%
C27Boden-Kieseritsky gambit4032.5%31.3%
A09Reti accepted, Keres variation4032.5%68.8%
E30Nimzo-Indian, Leningrad, ...b5 gambit7432.4%47.3%
D97Gruenfeld, Russian variation with e43732.4%62.2%
C74Ruy Lopez, Siesta, Kopayev variation14532.4%55.5%
E70King's Indian, Kramer system35832.4%58.1%
A00Mieses opening16732.3%50.9%
C30KGD, classical, 4.c36532.3%65.4%
B16Caro-Kann, Bronstein-Larsen variation48332.3%61.5%
B15Caro-Kann defence22332.3%52.0%
A16English, Anglo-Gruenfeld, Smyslov defense15832.3%56.0%
A98Dutch, Ilyin-Genevsky variation with Qc26232.3%54.8%
A61Benoni defence50332.2%62.0%
C58Two knights defence, Bogolyubov variation5932.2%46.6%
C44Inverted Hanham2832.1%41.1%
C44Ponziani, Reti variation2832.1%58.9%
A41Old Indian defence85032.1%54.6%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf68132.1%60.5%
C16French, Winawer, Petrosian variation21232.1%56.1%
A83Dutch, Staunton gambit, Chigorin variation7532.0%52.0%
D90Gruenfeld, Schlechter variation2532.0%40.0%
E99King's Indian, orthodox, Aronin-Taimanov, main line2532.0%60.0%
C98Ruy Lopez, closed, Chigorin, 12...Nc613831.9%61.6%
B09Pirc, Austrian attack, 6.Be331131.8%58.4%
A41Modern defence8531.8%58.2%
B80Sicilian, Scheveningen, English variation14531.7%53.1%
E88King's Indian, Saemisch, orthodox, 7.d5 c632831.7%57.6%
E00Neo-Indian (Seirawan) attack18031.7%51.4%
C02French, advance, Nimzovich system9831.6%45.4%
E31Nimzo-Indian, Leningrad, main line23131.6%51.3%
E77King's Indian, Four pawns attack11431.6%57.9%
D52QGD, Cambridge Springs defence, Argentine variation1931.6%42.1%
B40Sicilian, Pin variation (Sicilian counter-attack)1931.6%73.7%
C33KGA, bishop's gambit, Maurian defence1931.6%52.6%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
C24Bishop's opening, Urusov gambit5431.5%36.1%
E60King's Indian, Anti-Gruenfeld5431.5%60.2%
A81Dutch defence, Blackburne variation5431.5%52.8%
D30QGD, Capablanca variation3531.4%58.6%
C05French, Tarrasch, closed variation113031.4%60.5%
C40Latvian counter-gambit8631.4%61.0%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)5131.4%51.0%
C00French, Labourdonnais variation23031.3%45.2%
B03Alekhine's defence, four pawns attack24631.3%65.2%
B20Sicilian, wing gambit, Marshall variation6431.3%54.7%
A00Battambang opening1631.3%46.9%
C68Ruy Lopez, exchange, Romanovsky variation1631.3%53.1%
C44Ponziani, Romanishin variation1631.3%46.9%
B13Caro-Kann, Panov-Botvinnik, Herzog defence1631.3%53.1%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation66331.2%62.4%
D25QGA, Flohr variation7431.1%66.9%
A79Benoni, classical, 11.f35831.0%60.3%
C19French, Winawer, advance, positional main line105931.0%57.6%
B75Sicilian, dragon, Yugoslav attack32331.0%57.9%
B80Sicilian, Scheveningen variation124130.9%54.1%
A95Dutch, stonewall with Nc323630.9%58.7%
C13French, classical, Anderssen variation1330.8%38.5%
B03Alekhine's defence, four pawns attack, 6...Nc61330.8%46.2%
D99Gruenfeld defence, Smyslov, Yugoslav variation1330.8%46.2%
E60King's Indian, 3.g3, counterthrust variation1330.8%30.8%
D15QGD Slav, 5.e3 (Alekhine variation)16630.7%55.1%
C97Ruy Lopez, closed, Chigorin defence76930.6%63.5%
A00Saragossa opening36030.6%50.6%
D15QGD Slav, Suechting variation14430.6%59.0%
A21English, Smyslov defence3630.6%59.7%
B60Sicilian, Richter-Rauzer, Larsen variation15430.5%59.4%
C25Vienna gambit4630.4%56.5%
B41Sicilian, Kan, Maroczy bind - Bronstein variation2330.4%32.6%
C92Ruy Lopez, closed, Kholmov variation12230.3%66.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation16530.3%66.7%
C34KGA, Fischer defence14230.3%46.1%
E40Nimzo-Indian, 4.e314230.3%58.8%
E28Nimzo-Indian, Saemisch variation12930.2%53.9%
C13French, Albin-Alekhine-Chatard attack27530.2%55.1%
B98Sicilian, Najdorf variation33230.1%57.5%
C04French, Tarrasch, Guimard main line35030.0%59.6%
C03French, Tarrasch, Guimard variation7030.0%65.0%
C88Ruy Lopez, closed, 7...d6, 8.d42030.0%20.0%
C13French, classical, Anderssen-Richter variation1030.0%55.0%
C40Greco defence1030.0%45.0%
B79Sicilian, dragon, Yugoslav attack, 12.h41030.0%65.0%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be710729.9%57.0%
C53Giuoco Piano, Bird's attack15429.9%49.4%
A00Clemenz (Mead's, Basman's or de Klerk's) opening3729.7%39.2%
D30QGD Slav, Semmering variation2729.6%51.9%
A71Benoni, classical, 8.Bg59829.6%56.6%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c638029.5%54.5%
B02Alekhine's defence, Spielmann variation1729.4%44.1%
C34King's knight's gambit1729.4%32.4%
C59Two knights defence, Steinitz variation34429.4%48.1%
B00KP, Nimzovich defence, Bogolyubov variation11629.3%60.3%
C58Two knights defence, Colman variation4129.3%39.0%
A18English, Mikenas-Carls, Kevitz variation2429.2%47.9%
C82Ruy Lopez, open, Berlin variation2429.2%72.9%
A04Reti, Lisitsin gambit deferred2429.2%68.8%
C40Gunderam defence7929.1%67.7%
A03Bird's opening, Lasker variation11029.1%46.4%
A52Budapest, Alekhine, Abonyi variation6229.0%62.9%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence16929.0%56.5%
B06Robatsch defence, three pawns attack14928.9%60.7%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O37928.8%56.1%
B99Sicilian, Najdorf, 7...Be7 main line61128.6%53.1%
A21English, Troeger defence13328.6%53.4%
E92King's Indian, Petrosian system11228.6%51.8%
C30KGD, classical variation7728.6%53.2%
C70Ruy Lopez, Schliemann defence deferred2128.6%71.4%
C41Philidor, Hanham, Schlechter variation2128.6%71.4%
C20Alapin's opening2128.6%61.9%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1428.6%50.0%
C67Ruy Lopez, open Berlin defence, Showalter variation1428.6%42.9%
A82Dutch, Balogh defence1428.6%78.6%
B01Scandinavian, Kiel variation728.6%85.7%
E08Catalan, closed, Spassky gambit728.6%57.1%
B03Alekhine's defence, four pawns attack, Planinc variation728.6%28.6%
C82Ruy Lopez, open, 9.c3728.6%71.4%
A45Blackmar-Diemer gambit20128.4%51.0%
A73Benoni, classical, 9.O-O5728.1%59.6%
A65Benoni, 6.e433528.1%56.4%
A61Benoni, Nimzovich (knight's tour) variation37128.0%58.5%
A04Reti, Pirc-Lisitsin gambit12927.9%49.6%
B98Sicilian, Najdorf, Browne variation4327.9%60.5%
D15QGD Slav, Tolush-Geller gambit12227.9%41.0%
E83King's Indian, Saemisch, 6...Nc67927.8%43.0%
C12French, MacCutcheon, Lasker variation20527.8%59.3%
A44Semi-Benoni (`blockade variation')14427.8%59.0%
C20KP, Patzer opening3627.8%33.3%
A40Beefeater defence3627.8%66.7%
C51Evans gambit, Paulsen variation1827.8%69.4%
A25English, closed system (without ...d6)11927.7%55.0%
A17English, Queens Indian, Romanishin variation6227.4%60.5%
A77Benoni, classical, 9...Re8, 10.Nd213227.3%68.2%
A75Benoni, classical with ...a6 and 10...Bg45527.3%68.2%
C35KGA, Cunningham, Euwe defence2227.3%54.5%
C40Latvian, Polerio variation2227.3%40.9%
A56Czech Benoni defence30727.0%67.3%
C60Ruy Lopez, Cozio defence, Paulsen variation3727.0%70.3%
A06Reti, old Indian attack10027.0%48.5%
C42Petrov, Italian variation6327.0%50.0%
C33KGA, bishop's gambit, Bledow variation5226.9%30.8%
C57Two knights defence, Fegatello attack6726.9%53.7%
E87King's Indian, Saemisch, orthodox, 7.d528126.7%57.8%
D21QGA, Alekhine defense, Borisenko-Furman variation3026.7%46.7%
B05Alekhine's defence, modern, Panov variation1526.7%60.0%
C12French, MacCutcheon, advance variation1526.7%20.0%
A01Nimzovich-Larsen attack, Dutch variation1526.7%46.7%
B53Sicilian, Chekhover, Zaitsev variation6426.6%55.5%
A67Benoni, Taimanov variation23426.5%63.2%
C30KGD, 2...Nf63426.5%66.2%
A80Dutch, Korchnoi attack3426.5%54.4%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne186726.4%60.7%
C18French, Winawer, advance variation48726.1%63.1%
B22Sicilian, 2.c3, Heidenfeld variation5825.9%45.7%
C19French, Winawer, advance, Smyslov variation15525.8%61.3%
D49QGD semi-Slav, Meran, Rabinovich variation6225.8%43.5%
A60Benoni defence14425.0%62.5%
B40Sicilian, Pin, Koch variation4825.0%79.2%
B72Sicilian, dragon, classical, Amsterdam variation4425.0%46.6%
E17Queen's Indian, 5.Bg2 Be73225.0%43.8%
B00Reversed Grob (Borg/Basman defence/macho Grob)2025.0%77.5%
A52Budapest, Alekhine variation1625.0%68.8%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation1625.0%50.0%
C52Evans gambit, compromised defence, Paulsen variation1625.0%62.5%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1625.0%68.8%
D97Gruenfeld, Russian, Levenfish variation1225.0%70.8%
A21English, Keres variation1225.0%45.8%
C55Two knights, Max Lange attack, Marshall variation825.0%62.5%
C57Two knights defence, Fegatello attack, Leonhardt variation825.0%50.0%
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%
C52Evans gambit, Lasker defence825.0%25.0%
A25English, closed, 5.Rb1 Taimanov variation825.0%50.0%
C21Halasz gambit825.0%37.5%
A46Queen's pawn, Torre attack, Wagner gambit825.0%62.5%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
B02Alekhine's defence, Krejcik variation425.0%12.5%
D53QGD, Lasker variation425.0%87.5%
A00Global opening425.0%62.5%
D50QGD, Canal (Venice) variation425.0%62.5%
C15French, Winawer, Alekhine gambit425.0%37.5%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit425.0%62.5%
A00Grob, Romford counter-gambit425.0%62.5%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
C60Ruy Lopez, Lucena defence425.0%62.5%
A01Nimzovich-Larsen attack, Polish variation425.0%62.5%
C59Two knights defence, Goering variation425.0%12.5%
B00KP, Colorado counter425.0%62.5%
C43Petrov, modern attack, Bardeleben variation425.0%62.5%
C12French, MacCutcheon, Duras variation425.0%62.5%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack6124.6%68.0%
A56Benoni defence, Hromodka system40324.6%64.4%
A42Modern defence, Averbakh system, Kotov variation11924.4%66.0%
B50Sicilian, wing gambit deferred2123.8%35.7%
C12French, MacCutcheon, Bernstein variation2123.8%59.5%
E75King's Indian, Averbakh, main line7623.7%60.5%
C39KGA, Kieseritsky, Rice gambit1723.5%29.4%
D01Richter-Veresov attack, Richter variation1723.5%52.9%
C51Evans gambit declined3023.3%58.3%
C60Ruy Lopez (Spanish opening)3923.1%62.8%
C24Bishop's opening, Ponziani gambit1323.1%26.9%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3122.6%56.5%
E12Queen's Indian, 4.Nc3, Botvinnik variation4022.5%46.3%
A61Benoni, Uhlmann variation19822.2%39.9%
C41Philidor, Larsen variation3622.2%69.4%
E03Catalan, open, Alekhine variation1822.2%38.9%
C00Lengfellner system922.2%77.8%
C33KGA, bishop's gambit, Cozio (Morphy) defence922.2%44.4%
D00Blackmar-Diemer, Euwe defence2821.4%46.4%
C41Philidor, Philidor counter-gambit1421.4%67.9%
C17French, Winawer, advance, Rauzer variation1421.4%67.9%
A28English, Bradley Beach variation5221.2%37.5%
A66Benoni, Mikenas variation1921.1%52.6%
D15QGD Slav, Slav gambit2420.8%56.3%
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%
C51Evans gambit, normal variation2020.0%50.0%
C47Four knights, Scotch variation1520.0%56.7%
C80Ruy Lopez, open, Friess attack1020.0%60.0%
A70Benoni, classical without 9.O-O1020.0%50.0%
B02Alekhine's defence, Kmoch variation1020.0%20.0%
A54Old Indian, Dus-Khotimirsky variation1020.0%40.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
C31KGD, Falkbeer, Rubinstein variation520.0%70.0%
A59Benko gambit, Ne2 variation520.0%30.0%
C45Scotch, Pulling counter-attack520.0%70.0%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C42Petrov, Cochrane gambit6518.5%32.3%
C40Latvian, Fraser defence1118.2%54.5%
C06French, Tarrasch, Leningrad variation1717.6%85.3%
C57Two knights defence1216.7%41.7%
C14French, classical, Tarrasch variation1216.7%50.0%
B15Caro-Kann, Rasa-Studier gambit1216.7%33.3%
B18Caro-Kann, classical, Maroczy attack1216.7%41.7%
C32KGD, Falkbeer, main line, 7...Bf5616.7%91.7%
C14French, classical variation616.7%41.7%
C52Evans gambit, Levenfish variation616.7%25.0%
A82Dutch, Staunton gambit, Tartakower variation616.7%41.7%
C48Four knights, Marshall variation616.7%41.7%
A56Czech Benoni, King's Indian system4916.3%67.3%
C30KGD, Norwalde variation2015.0%77.5%
A61Benoni, fianchetto variation1414.3%78.6%
B02Alekhine's defence, Brooklyn defence714.3%35.7%
C21Danish gambit, Schlechter defence714.3%50.0%
A25English, closed, Taimanov variation2412.5%64.6%
C38KGA, Philidor gambit1612.5%31.3%
C00French, Steinitz attack911.1%27.8%
D08QGD, Albin counter-gambit, Balogh variation911.1%83.3%
A42Modern defence, Averbakh system, Randspringer variation119.1%77.3%
B12de Bruycker defence119.1%59.1%
D48QGD semi-Slav, Meran214.8%40.5%
C13French, classical, Vistaneckis (Nimzovich) variation90.0%66.7%
D21QGA, Ericson variation60.0%33.3%
C52Evans gambit, Waller attack60.0%100.0%
D08QGD, Albin counter-gambit, Lasker trap50.0%60.0%
E37Nimzo-Indian, classical, San Remo variation50.0%60.0%
C37KGA, Salvio gambit, Anderssen counter-attack50.0%60.0%
C57Two knights defence, Fegatello attack, Polerio defence40.0%100.0%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%
C44Dresden opening40.0%25.0%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
B20Sicilian, Gloria variation40.0%50.0%
D51QGD, Alekhine variation40.0%50.0%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
D86Gruenfeld, exchange, Larsen variation30.0%66.7%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
A00Anti-Borg (Desprez) opening30.0%33.3%
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%
C33KGA, bishop's gambit, classical defence30.0%33.3%
C58Two knights defence, Blackburne variation30.0%66.7%
C51Evans gambit declined, Lange variation20.0%0.0%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
C41Philidor, Steinitz variation20.0%0.0%
A04Reti, Herrstroem gambit20.0%100.0%
C27Vienna, `Frankenstein-Dracula' variation20.0%100.0%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C40King's knight opening20.0%50.0%
A83Dutch, Staunton gambit, Nimzovich variation20.0%0.0%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C30KGD, classical, Heath variation20.0%50.0%
A10English, Jaenisch gambit20.0%100.0%
C51Evans gambit, Fraser attack20.0%100.0%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B00Fred20.0%100.0%
C55Giuoco piano20.0%50.0%
E14Queen's Indian, Averbakh variation20.0%50.0%
C52Evans gambit, Sanders-Alapin variation20.0%100.0%
A04Reti, Wade defence20.0%50.0%
C23Bishop's opening, Lopez gambit20.0%0.0%
B00KP, Nimzovich defence, Marshall gambit20.0%50.0%
C41Philidor, Lopez counter-gambit20.0%50.0%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C31KGD, Falkbeer, Morphy gambit10.0%100.0%
C25Vienna, Steinitz gambit10.0%0.0%
C44Scotch gambit, Hanneken variation10.0%100.0%
C55Two knights, Max Lange attack, Loman defence10.0%100.0%
C30KGD, classical counter-gambit10.0%0.0%
A02Bird, From gambit, Lipke variation10.0%0.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
A00Amsterdam attack10.0%100.0%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
A00Amar gambit10.0%0.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
B62Sicilian, Richter-Rauzer, Richter attack10.0%100.0%
D26QGA, classical, Furman variation10.0%0.0%
C39KGA, Kieseritsky, Brentano defence10.0%100.0%
C51Evans gambit, Goering attack10.0%100.0%
C30KGD, classical, Soldatenkov variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
B40Sicilian, Marshall variation10.0%100.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
C33KGA, Carrera (Basman) gambit10.0%100.0%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
D80Gruenfeld, Lundin variation10.0%0.0%
D40QGD, Semi-Tarrasch, Levenfish variation10.0%100.0%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%

Created in 2005-2013 by CCRL team
Last games added on June 18, 2018