CCRL 40/15
Downloads and Statistics
May 8, 2021
Testing summary:
Total: 1'242'291 games
played by 2'843 programs

White wins: 425'658 (34.3%)
Black wins: 312'703 (25.2%)
Draws: 503'930 (40.6%)
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
C64Ruy Lopez, classical defence, Zaitsev variation4100.0%50.0%
C39KGA, Kieseritsky, Brentano defence, Caro variation3100.0%50.0%
C40Latvian, Behting variation3100.0%50.0%
C89Ruy Lopez, Marshall, Kevitz variation3100.0%50.0%
D50QGD, Semi-Tarrasch, Krause variation2100.0%50.0%
C55Two knights defence, Keidanz variation2100.0%50.0%
C34KGA, Gianutio counter-gambit2100.0%50.0%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
C55Two knights, Max Lange attack, Rubinstein variation1100.0%50.0%
C37KGA, Muzio gambit, From defence1100.0%50.0%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
B12Caro-Masi defence1100.0%50.0%
C30KGD, classical, Marshall attack1080.0%50.0%
C41Philidor, Nimzovich, Sokolsky variation1478.6%60.7%
C45Scotch, Ghulam Kassim variation875.0%50.0%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1872.2%58.3%
C48Four knights, Rubinstein counter-gambit, exchange variation23567.2%52.3%
C70Ruy Lopez, Graz variation1266.7%58.3%
C42Petrov, French attack966.7%66.7%
B06Norwegian defence666.7%50.0%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C83Ruy Lopez, open, Breslau variation366.7%66.7%
A43Hawk (Habichd) defence366.7%33.3%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation366.7%66.7%
C30KGD, classical, Svenonius variation366.7%66.7%
C42Petrov, classical attack, Tarrasch variation366.7%66.7%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
A38English, symmetrical, main line with b3366.7%33.3%
C55Two knights, Max Lange attack, Schlechter variation3562.9%51.4%
B03Alekhine's defence, exchange, Karpov variation1662.5%56.3%
E21Nimzo-Indian, three knights, Euwe variation862.5%56.3%
C48Four knights, Spielmann variation862.5%43.8%
C22Centre game, Charousek variation862.5%56.3%
C67Ruy Lopez, open Berlin defence, l'Hermet variation15261.8%51.3%
C32KGD, Falkbeer, Charousek gambit1361.5%53.8%
C80Ruy Lopez, open, Tartakower variation1361.5%46.2%
C67Ruy Lopez, Berlin defence, Zukertort variation2860.7%55.4%
C12French, MacCutcheon, Grigoriev variation3360.6%54.5%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation3860.5%59.2%
C42Petrov, classical attack, Berger variation2560.0%58.0%
C41Philidor, Nimzovich, Klein variation1560.0%56.7%
D41QGD, Semi-Tarrasch, Kmoch variation1560.0%43.3%
E08Catalan, closed, Zagoryansky variation1060.0%50.0%
C10French, Rubinstein, Capablanca line1060.0%50.0%
C38KGA, Philidor gambit, Schultz variation1060.0%30.0%
D26QGA, classical, Furman variation560.0%30.0%
C49Four knights, Gunsberg counter-attack560.0%50.0%
C21Danish gambit, Collijn defence560.0%50.0%
C49Four knights, Svenonius variation560.0%50.0%
A02Bird, Hobbs gambit560.0%70.0%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit7259.7%53.5%
C37KGA, King's knight's gambit3759.5%51.4%
C83Ruy Lopez, open, Malkin variation1758.8%58.8%
E25Nimzo-Indian, Saemisch, Romanovsky variation16558.8%52.4%
C31KGD, Falkbeer, Tartakower variation7058.6%47.9%
E79King's Indian, Four pawns attack, main line5757.9%57.0%
D57QGD, Lasker defence, Bernstein variation3857.9%55.3%
D32QGD, Tarrasch defence, Tarrasch gambit1957.9%44.7%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
B44Sicilian, Szen variation, Dely-Kasparov gambit3357.6%62.1%
C66Ruy Lopez, closed Berlin defence, Wolf variation6157.4%56.6%
C26Vienna, Mengarini variation3557.1%48.6%
D22QGA, Alekhine defence, Alatortsev variation1457.1%42.9%
C64Ruy Lopez, classical defence, Boden variation1457.1%57.1%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)5156.9%57.8%
C55Two knights defence, Perreux variation4656.5%50.0%
D22QGA, Haberditz variation23555.7%56.0%
E92King's Indian, Andersson variation42755.7%48.2%
C15French, Winawer, Kondratiyev variation1855.6%61.1%
C30KGD, classical, Reti variation955.6%50.0%
C33KGA, bishop's gambit, Boden defence955.6%50.0%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
C53Giuoco Piano, Anderssen variation4755.3%46.8%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation6755.2%60.4%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation5154.9%62.7%
D34QGD, Tarrasch, Reti variation4454.5%65.9%
C54Giuoco Piano, Moeller (Therkatz) attack4454.5%47.7%
D12QGD Slav, Amsterdam variation2254.5%45.5%
D33QGD, Tarrasch, Wagner variation5954.2%55.9%
C49Four knights, Nimzovich (Paulsen) variation9654.2%57.3%
C49Four knights, symmetrical, Capablanca variation2454.2%60.4%
D55QGD, Petrosian variation41454.1%53.1%
D63QGD, Orthodox defence, Pillsbury attack3754.1%62.2%
C65Ruy Lopez, Berlin defence, Nyholm attack11753.8%53.4%
C52Evans gambit, Alapin-Steinitz variation1353.8%34.6%
B01Scandinavian, Mieses-Kotrvc gambit1353.8%50.0%
C47Four knights, Scotch, 4...exd463253.8%52.7%
D87Gruenfeld, exchange, Seville variation9353.8%61.3%
C54Giuoco Piano25153.4%50.2%
D56QGD, Lasker defence, Teichmann variation13553.3%49.6%
E17Queen's Indian, Euwe variation10553.3%54.3%
D27QGA, classical, Geller variation9453.2%57.4%
D29QGA, classical, Smyslov variation4753.2%43.6%
D30QGD, Vienna variation128653.2%52.3%
D25QGA, Smyslov variation11753.0%60.7%
D27QGA, classical, 6...a6509253.0%55.0%
D69QGD, Orthodox defence, classical, 13.de1752.9%55.9%
C89Ruy Lopez, Marshall counter-attack66552.9%54.3%
C49Four knights10452.9%47.6%
C66Ruy Lopez, Berlin defence, hedgehog variation14252.8%57.4%
D14QGD Slav, exchange variation, 6.Bf4 Bf586852.8%52.4%
E34Nimzo-Indian, classical, Noa variation113552.7%53.7%
D57QGD, Lasker defence, main line16952.7%55.3%
E05Catalan, open, classical line24752.6%57.9%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1952.6%47.4%
D50QGD, Semi-Tarrasch7852.6%51.9%
C92Ruy Lopez, closed, Keres (9...a5) variation2152.4%50.0%
C40Latvian gambit, 3.Bc42152.4%50.0%
D94Gruenfeld, Flohr defence2352.2%60.9%
B14Caro-Kann, Panov-Botvinnik attack, 5...g643952.2%52.5%
B18Caro-Kann, classical, Flohr variation14852.0%55.7%
C89Ruy Lopez, Marshall, main line, 14...Qh354852.0%51.4%
D14QGD Slav, exchange, Trifunovic variation27552.0%52.2%
D55QGD, Neo-orthodox variation, 7.Bh423151.9%57.6%
C09French, Tarrasch, open variation, main line134251.9%56.7%
C57Two knights defence, Ulvestad variation11451.8%46.9%
C82Ruy Lopez, open, Italian variation11651.7%62.9%
B74Sicilian, dragon, classical, Alekhine variation2951.7%63.8%
C65Ruy Lopez, Berlin defence, Mortimer variation2951.7%46.6%
E56Nimzo-Indian, 4.e3, main line with 7...Nc658451.7%55.5%
D26QGA, classical variation95451.7%53.8%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)26951.7%54.5%
C08French, Tarrasch, open, 4.ed ed169751.6%54.6%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation3351.5%56.1%
C48Four knights, Rubinstein counter-gambit, Henneberger variation10551.4%50.5%
C41Philidor, Hanham, Schlechter variation3551.4%65.7%
C45Scotch, Schmidt variation92651.4%48.5%
D16QGD Slav, Soultanbeieff variation59051.4%52.1%
C84Ruy Lopez, closed, centre attack20951.2%47.6%
D34QGD, Tarrasch, Prague variation, Normal position83151.1%56.4%
D73Neo-Gruenfeld, 5.Nf3112951.1%55.8%
D52QGD, Cambridge Springs defence, Bogoljubow variation55251.1%55.6%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)13951.1%55.0%
C90Ruy Lopez, closed, Lutikov variation4751.1%53.2%
D28QGA, classical, 7...b533951.0%55.0%
C45Scotch, Meitner variation5151.0%51.0%
D47QGD semi-Slav, neo-Meran (Lundin variation)37150.9%55.1%
E06Catalan, closed, 5.Nf3432950.9%53.7%
D79Neo-Gruenfeld, 6.O-O, main line74050.8%53.6%
C53Giuoco Piano, LaBourdonnais variation6750.7%58.2%
D28QGA, classical, 7.Qe26950.7%61.6%
A28English, four knights, Romanishin variation64650.6%52.2%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd528550.5%46.0%
D40QGD, Semi-Tarrasch defence, Pillsbury variation9750.5%58.2%
D56QGD, Lasker defence61050.3%53.4%
D41QGD, Semi-Tarrasch, 5.cd88450.2%56.7%
D48QGD semi-Slav, Meran, 8...a6156150.2%49.1%
C42Petrov, Cozio (Lasker) attack61650.0%51.9%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d539650.0%52.3%
D68QGD, Orthodox defence, classical variation8450.0%57.1%
C43Petrov, modern attack, Trifunovic variation7650.0%51.3%
C31KGD, Falkbeer, 4.d36050.0%63.3%
C65Ruy Lopez, Berlin defence, Kaufmann variation4250.0%53.6%
C96Ruy Lopez, closed (8...Na5)4050.0%62.5%
D65QGD, Orthodox defence, Rubinstein attack, main line3650.0%58.3%
D50QGD, Been-Koomen variation3650.0%47.2%
C40QP counter-gambit (elephant gambit)3250.0%65.6%
A82Dutch, Balogh defence2850.0%60.7%
D51QGD, Manhattan variation2650.0%55.8%
D98Gruenfeld, Russian, Keres variation2250.0%47.7%
C44Scotch opening2050.0%50.0%
C41Philidor, Hanham, Krause variation1850.0%47.2%
B88Sicilian, Sozin, Fischer variation1650.0%50.0%
D48QGD semi-Slav, Meran, Pirc variation1650.0%68.8%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C44Scotch gambit, Cochrane-Shumov defence1250.0%66.7%
A81Dutch, Leningrad, Karlsbad variation1250.0%50.0%
D55QGD, Neo-orthodox variation1250.0%58.3%
C41Philidor, Philidor counter-gambit, Zukertort variation1250.0%66.7%
A81Dutch, Leningrad, Basman system1250.0%58.3%
C30KGD, classical counter-gambit1050.0%55.0%
C41Philidor, Boden variation1050.0%45.0%
C01French, exchange, Bogolyubov variation1050.0%45.0%
C48Four knights, Bardeleben variation850.0%50.0%
E20Nimzo-Indian, Mikenas attack850.0%62.5%
B15Caro-Kann, Gurgenidze counter-attack850.0%62.5%
B07Pirc, Chinese variation650.0%41.7%
C23Bishop's opening, Wing gambit650.0%41.7%
C30KGD, classical, Hanham variation650.0%58.3%
A83Dutch, Staunton gambit, Alekhine variation650.0%41.7%
A66Benoni, pawn storm variation650.0%58.3%
D00Queen's pawn, Anti-Veresov650.0%58.3%
E14Queen's Indian, Averbakh variation650.0%41.7%
C14French, classical, Stahlberg variation650.0%58.3%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6450.0%50.0%
B00Carr's defence450.0%50.0%
A80Dutch, Spielmann gambit450.0%50.0%
A83Dutch, Staunton gambit, Nimzovich variation450.0%25.0%
D30QGD, Stonewall variation450.0%75.0%
B27Sicilian, Stiletto (Althouse) variation450.0%25.0%
C24Bishop's opening, Urusov gambit, Panov variation450.0%50.0%
C36KGA, Abbazia defence, Botvinnik variation450.0%50.0%
A03Mujannah opening450.0%25.0%
C51Evans gambit, Goering attack450.0%75.0%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C41Philidor, Nimzovich, Locock variation450.0%50.0%
C55Two knights, Max Lange attack, Krause variation450.0%75.0%
C23Bishop's opening, MacDonnell double gambit250.0%25.0%
C10French, Marshall variation250.0%25.0%
C41Philidor, Paulsen attack250.0%25.0%
C65Ruy Lopez, Berlin defence, Anderssen variation250.0%75.0%
C20KP, King's head opening250.0%25.0%
E87King's Indian, Saemisch, orthodox, Bronstein variation250.0%75.0%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation250.0%25.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%25.0%
D34QGD, Tarrasch, Bogolyubov variation250.0%25.0%
C43Petrov, modern attack, Steinitz variation250.0%75.0%
C25Vienna, Steinitz gambit250.0%25.0%
C60Ruy Lopez, Vinogradov variation250.0%75.0%
A02Bird's opening, Swiss gambit250.0%75.0%
D55QGD, Pillsbury attack250.0%75.0%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
D47QGD semi-Slav, Meran variation166449.9%53.5%
C48Four knights, Spanish variation35749.9%55.5%
D35QGD, Harrwitz attack28549.8%55.8%
C23Bishop's opening, Philidor counter-attack23149.8%50.0%
D26QGA, classical variation, 6.O-O22349.8%57.6%
B73Sicilian, dragon, classical, Richter variation18549.7%57.8%
C80Ruy Lopez, open, Bernstein variation110849.7%62.8%
C42Petrov, classical attack132149.7%57.6%
D39QGD, Ragozin, Vienna variation192449.6%51.1%
D51QGD, 5...c624449.6%51.0%
C81Ruy Lopez, open, Howell attack28949.5%53.8%
D90Gruenfeld, Three knights variation103549.5%53.7%
D26QGA, classical, Steinitz variation18049.4%64.2%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc417449.4%46.6%
B19Caro-Kann, classical, 7...Nd743149.4%52.6%
D23Queen's gambit accepted7749.4%51.9%
B74Sicilian, dragon, classical, 9.Nb356049.3%49.1%
D93Gruenfeld with Bf4 e341649.3%55.6%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed91449.2%51.1%
D51QGD5549.1%57.3%
D05Colle system37149.1%52.3%
D13QGD Slav, exchange variation110849.0%55.1%
B10Caro-Kann, anti-anti-Caro-Kann defence176049.0%53.1%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation215049.0%55.3%
D17QGD Slav, Czech defence52949.0%55.7%
C41Philidor, Nimzovich, Larobok variation9448.9%38.3%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc259748.9%60.3%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation4548.9%48.9%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc142448.9%55.6%
D08QGD, Albin counter-gambit, Alapin variation13148.9%55.7%
C68Ruy Lopez, exchange, Keres variation20948.8%49.8%
D27QGA, classical, Rubinstein variation170548.7%56.7%
B36Sicilian, accelerated fianchetto, Gurgenidze variation37048.6%60.5%
C68Ruy Lopez, exchange, Alekhine variation3748.6%43.2%
C67Ruy Lopez, Berlin defence, open variation546248.6%53.7%
C42Petrov, Kaufmann attack33148.6%52.7%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)95048.6%54.6%
D35QGD, exchange, Saemisch variation42448.6%53.8%
B59Sicilian, Boleslavsky variation, 7.Nb321048.6%52.9%
D84Gruenfeld, Gruenfeld gambit accepted17548.6%58.6%
C10French, Rubinstein variation318848.6%55.8%
E01Catalan, closed96248.5%54.7%
D85Gruenfeld, exchange variation439948.5%55.8%
C83Ruy Lopez, open, classical defence26448.5%59.8%
C43Petrov, modern attack, main line26448.5%57.6%
D94Gruenfeld, Smyslov defence23148.5%55.0%
D33QGD, Tarrasch, Folkestone (Swedish) variation25048.4%56.2%
E15Queen's Indian, 4.g3378148.4%55.2%
E25Nimzo-Indian, Saemisch, Keres variation36648.4%54.5%
C70Ruy Lopez, fianchetto defence deferred12248.4%57.0%
A13English, Wimpey system24248.3%46.9%
D59QGD, Tartakower variation15148.3%46.0%
D44QGD semi-Slav, 5.Bg5 dc27148.3%49.3%
C07French, Tarrasch, Eliskases variation17448.3%54.0%
C46Three knights, Steinitz, Rosenthal variation2948.3%48.3%
D55QGD, Neo-orthodox variation, 7.Bxf645248.2%52.4%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O33648.2%56.5%
C67Ruy Lopez, Berlin defence, Minckwitz variation5648.2%58.0%
D66QGD, Orthodox defence, Bd3 line35748.2%56.9%
A14English, Symmetrical, Keres defence62148.1%57.4%
C82Ruy Lopez, open, Motzko attack10848.1%59.3%
D40QGD, Semi-Tarrasch, symmetrical variation2748.1%53.7%
B13Caro-Kann, Panov-Botvinnik attack142948.1%52.6%
D77Neo-Gruenfeld, 6.O-O97048.0%55.1%
A33English, symmetrical variation220148.0%53.8%
D30QGD, Hastings variation90348.0%52.8%
A13English, Neo-Catalan accepted169447.9%55.8%
D85Gruenfeld, modern exchange variation419047.9%56.3%
C56Two knights defence16147.8%49.4%
A47Queen's Indian, Marienbad system, Berg variation2347.8%54.3%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2347.8%50.0%
C07French, Tarrasch, open variation470947.8%54.3%
C51Evans gambit, Cordel variation11147.7%46.4%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc326447.7%58.0%
B23Sicilian, closed, Korchnoi variation25847.7%50.2%
D24QGA, Bogolyubov variation23547.7%54.9%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6232147.7%55.5%
B73Sicilian, dragon, classical, 8.O-O46947.5%53.6%
D60QGD, Orthodox defence, Rauzer variation12047.5%54.6%
D30QGD121547.5%51.4%
E19Queen's Indian, old main line, 9.Qxc3159847.4%58.1%
B72Sicilian, dragon, classical, Grigoriev variation5747.4%50.0%
B21Sicilian, Andreaschek gambit1947.4%55.3%
B13Caro-Kann, Panov-Botvinnik, normal variation14847.3%55.4%
D37QGD, 4.Nf3790147.2%53.5%
D58QGD, Tartakower (Makagonov-Bondarevsky) system549447.2%52.1%
A02Bird, From gambit, Lasker variation3647.2%56.9%
A30English, symmetrical, hedgehog system328147.2%56.1%
D52QGD, Cambridge Springs defence5147.1%49.0%
C31KGD, Falkbeer, 3...e45147.1%47.1%
D50QGD, Canal (Venice) variation1747.1%52.9%
D42QGD, Semi-Tarrasch, 7.Bd344947.0%54.7%
E20Nimzo-Indian defence29647.0%53.2%
D38QGD, Ragozin variation646946.9%53.2%
C73Ruy Lopez, modern Steinitz defence, Richter variation27346.9%50.5%
C42Petrov, Damiano variation3246.9%54.7%
E32Nimzo-Indian, classical, Adorjan gambit14346.9%53.5%
D05Queen's pawn game, Zukertort variation7946.8%57.6%
C78Ruy Lopez, 5.O-O150946.8%54.6%
D34QGD, Tarrasch, Prague variation, 9.Bg562946.7%58.8%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb667246.7%57.3%
C66Ruy Lopez, Berlin defence, 4.O-O, d619746.7%59.4%
C42Petrov, classical attack, Jaenisch variation190846.7%58.4%
B60Sicilian, Richter-Rauzer, Bondarevsky variation4546.7%65.6%
D37QGD, classical variation (5.Bf4)571746.7%55.0%
D83Gruenfeld, Gruenfeld gambit11846.6%55.5%
D61QGD, Orthodox defence, Rubinstein variation45746.6%53.3%
D41QGD, Semi-Tarrasch with e337846.6%56.9%
D86Gruenfeld, exchange, classical variation145046.6%55.9%
D31QGD, Charousek (Petrosian) variation234246.5%54.3%
C42Petrov, classical attack, Mason variation18746.5%58.6%
D63QGD, Orthodox defence12946.5%60.5%
E02Catalan, open, 5.Qa424346.5%58.6%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd711446.5%53.1%
C89Ruy Lopez, Marshall counter-attack, 11...c625446.5%55.1%
C00St. George defence20946.4%59.1%
D80Gruenfeld defence164046.4%53.8%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd392946.4%52.0%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation216946.4%51.6%
E65King's Indian, fianchetto, Yugoslav, 7.O-O32646.3%53.5%
D20Queen's gambit accepted133046.3%55.0%
D92Gruenfeld, 5.Bf4100446.3%56.0%
B97Sicilian, Najdorf, Poisoned pawn variation131546.2%50.7%
B85Sicilian, Scheveningen, classical main line40746.2%56.8%
D30QGD Slav64346.2%55.0%
C14French, classical, Alapin variation13046.2%53.1%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
C30KGD, classical, Heath variation1346.2%53.8%
D51QGD, Rochlin variation1346.2%46.2%
C42Petrov, Nimzovich attack190546.1%55.2%
D53QGD, 4.Bg5 Be7134346.0%55.2%
D97Gruenfeld, Russian, Prins variation53946.0%56.4%
A34English, symmetrical, three knights system195246.0%54.5%
C66Ruy Lopez, closed Berlin defence, Showalter variation7445.9%56.8%
A12English, Caro-Kann defensive system, Bogolyubov variation17045.9%54.7%
D46QGD semi-Slav, Chigorin defence48445.9%55.0%
D71Neo-Gruenfeld, 5.cd42345.9%56.7%
D06QGD, symmetrical (Austrian) defence18145.9%60.5%
C66Ruy Lopez, closed Berlin defence, Bernstein variation2445.8%60.4%
B62Sicilian, Richter-Rauzer, Podvebrady variation2445.8%35.4%
B18Caro-Kann, classical variation217845.8%54.6%
D54QGD, Anti-neo-orthodox variation15345.8%55.6%
B01Scandinavian, Icelandic gambit7045.7%57.1%
C13French, classical3545.7%45.7%
C86Ruy Lopez, Worrall attack3545.7%60.0%
D32QGD, Tarrasch defence63545.7%54.0%
C44Inverted Hungarian4645.7%51.1%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)4645.7%59.8%
C11French, Burn variation619545.6%53.1%
C49Four knights, symmetrical, Pillsbury variation6845.6%44.9%
C52Evans gambit, Tartakower attack10145.5%47.5%
C42Petrov, classical attack, close variation21345.5%58.9%
A40Queen's pawn, English defence49045.5%57.2%
B36Sicilian, accelerated fianchetto, Maroczy bind120745.5%58.4%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system71945.5%54.9%
C24Bishop's opening, Urusov gambit13245.5%40.2%
C48Four knights, Ranken variation3345.5%62.1%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation2245.5%54.5%
A84Dutch, Staunton gambit deferred1145.5%31.8%
C80Ruy Lopez, open, Riga variation1145.5%68.2%
B57Sicilian, Magnus Smith trap1145.5%40.9%
C77Ruy Lopez, four knights (Tarrasch) variation26245.4%55.5%
E36Nimzo-Indian, classical, Noa variation, 5.a351145.4%53.6%
A52Budapest, Adler variation43445.4%57.5%
C48Four knights, Spanish, classical defence26045.4%49.6%
D15QGD Slav, Schlechter variation47645.4%59.9%
A30English, symmetrical, hedgehog, flexible formation21445.3%54.0%
C43Petrov, modern attack, Symmetrical variation343845.3%52.9%
A14English, Neo-Catalan declined127245.3%54.6%
D51QGD, Capablanca anti-Cambridge Springs variation5345.3%60.4%
C51Evans gambit declined, Showalter variation5345.3%58.5%
D10QGD Slav defence, exchange variation231945.2%55.6%
E04Catalan, open, 5.Nf3615945.2%53.7%
A58Benko gambit, fianchetto variation18845.2%59.8%
D46QGD semi-Slav, Bogolyubov variation19745.2%56.6%
D78Neo-Gruenfeld, 6.O-O c6114745.2%52.7%
A51Budapest defence declined3145.2%61.3%
E53Nimzo-Indian, 4.e3, Keres variation16445.1%50.6%
D32QGD, Tarrasch, von Hennig-Schara gambit13345.1%63.2%
E49Nimzo-Indian, 4.e3, Botvinnik system31745.1%56.0%
B74Sicilian, dragon, classical, Reti-Tartakower variation10245.1%53.9%
D30Queen's gambit declined813745.1%55.3%
E10Queen's pawn game619745.1%55.2%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation119645.1%55.6%
C11French defence27345.1%54.4%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3165445.0%52.8%
A32English, symmetrical variation86645.0%54.2%
B15Caro-Kann, Forgacs variation30245.0%56.6%
E46Nimzo-Indian, Reshevsky variation130045.0%51.1%
C63Ruy Lopez, Schliemann defence, Berger variation56045.0%57.0%
C11French, Swiss variation6045.0%54.2%
B05Alekhine's defence, modern, Vitolins attack4045.0%55.0%
C45Scotch, Paulsen attack2045.0%52.5%
D80Gruenfeld, Stockholm variation111445.0%53.7%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation27845.0%58.1%
D26QGA, 4...e638144.9%54.2%
D49QGD semi-Slav, Meran, Blumenfeld variation21444.9%53.7%
D63QGD, Orthodox defence, Swiss, Karlsbad variation37944.9%54.6%
E53Nimzo-Indian, 4.e3, main line with ...c557344.9%55.4%
B83Sicilian, modern Scheveningen, main line60244.9%53.0%
C95Ruy Lopez, closed, Breyer, Gligoric variation6744.8%58.2%
A92Dutch, stonewall with Nc33844.7%48.7%
C44Ponziani, Jaenisch counter-attack251544.7%52.2%
C69Ruy Lopez, exchange, Gligoric variation98444.7%54.6%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc612344.7%46.7%
E27Nimzo-Indian, Saemisch variation12344.7%50.0%
B86Sicilian, Sozin attack30244.7%53.1%
D34QGD, Tarrasch, Prague variation, 7...Be722644.7%55.1%
C25Vienna game, Max Lange defence4744.7%52.1%
D63QGD, Orthodox defence, Swiss (Henneberger) variation15044.7%57.0%
A72Benoni, classical without 9.O-O15944.7%65.7%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)11244.6%45.5%
B80Sicilian, Scheveningen, Vitolins variation5644.6%50.9%
C42Petrov, classical attack, Marshall variation128444.6%58.1%
E46Nimzo-Indian, Simagin variation23144.6%48.7%
E41Nimzo-Indian, 4.e3 c5111544.6%54.8%
A38English, symmetrical, main line with d321144.5%54.0%
A35English, symmetrical, four knights system292544.5%53.5%
D87Gruenfeld, exchange, Spassky variation69444.5%56.4%
D35QGD, exchange, positional line, 5...c6115044.5%56.3%
D95Gruenfeld, Botvinnik variation14644.5%50.3%
D30QGD, Capablanca-Duras variation50644.5%53.1%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2744.4%44.4%
B77Sicilian, dragon, Yugoslav attack, Byrne variation1844.4%66.7%
A00Amar (Paris) opening1844.4%33.3%
C42Petrov, classical attack, Krause variation944.4%33.3%
C23Bishop's opening, Philidor variation944.4%55.6%
C43Petrov, modern attack, Bardeleben variation944.4%55.6%
C61Ruy Lopez, Bird's defence, Paulsen variation944.4%66.7%
D94Gruenfeld, 5.e352744.4%56.2%
D94Gruenfeld, Opovcensky variation24144.4%52.1%
A36English, symmetrical, Botvinnik system reversed12444.4%52.8%
D53QGD, 4.Bg5 Be7, 5.e3 O-O10644.3%52.4%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d532544.3%49.8%
C01French, exchange variation214544.3%53.4%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence7044.3%40.7%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d583844.3%52.3%
B49Sicilian, Taimanov variation81844.3%57.5%
A38English, symmetrical variation69644.3%54.9%
C69Ruy Lopez, exchange variation, Alapin gambit40044.3%50.9%
D19QGD Slav, Dutch variation, main line33044.2%58.5%
C46Four knights, Italian variation24944.2%47.4%
A40Queen's pawn, Charlick (Englund) gambit3444.1%60.3%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence3444.1%54.4%
B20Sicilian, wing gambit, Carlsbad variation3444.1%48.5%
D45QGD semi-Slav, Stoltz variation1390044.1%53.2%
A15English opening1654944.1%53.8%
D63QGD, Orthodox defence, 7.Rc130944.0%56.3%
C91Ruy Lopez, closed, Bogolyubov variation415644.0%53.7%
C17French, Winawer, advance, Russian variation7544.0%51.3%
C80Ruy Lopez, open (Tarrasch) defence7544.0%62.0%
E18Queen's Indian, old main line, 7.Nc3217143.9%57.0%
D11QGD Slav, 4.e3680143.9%55.5%
C39KGA, Kieseritsky, Kolisch defence15543.9%46.5%
D49QGD semi-Slav, Meran, Sozin variation17143.9%47.1%
A00Grob, Fritz gambit5743.9%30.7%
B72Sicilian, dragon, classical, Nottingham variation5743.9%53.5%
C44Ponziani, Caro variation27643.8%49.5%
D82Gruenfeld, 4.Bf480143.8%53.9%
E12Queen's Indian, Petrosian system887143.8%54.3%
C82Ruy Lopez, open, St. Petersburg variation23343.8%64.8%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)321843.8%54.3%
E36Nimzo-Indian, classical, Botvinnik variation1643.8%59.4%
E32Nimzo-Indian, classical variation835543.7%53.9%
E17Queen's Indian, old main line, 6.O-O135143.7%57.8%
B17Caro-Kann, Steinitz variation467143.7%53.5%
B83Sicilian, modern Scheveningen57443.7%50.4%
B70Sicilian, dragon variation108443.7%52.1%
A94Dutch, stonewall with Ba313543.7%56.7%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg722943.7%55.9%
B35Sicilian, accelerated fianchetto, modern variation with Bc4256143.7%53.8%
E07Catalan, closed, 6...Nbd714943.6%52.7%
D86Gruenfeld, exchange, Simagin's lesser variation9443.6%60.1%
E59Nimzo-Indian, 4.e3, main line80543.6%53.9%
B22Sicilian, Alapin's variation (2.c3)857043.6%54.6%
C77Ruy Lopez, Anderssen variation221643.6%52.0%
E16Queen's Indian, Capablanca variation67743.6%57.1%
C46Four knights, Gunsberg variation16343.6%49.4%
C64Ruy Lopez, classical defence, 4.c341643.5%57.8%
E12Queen's Indian, Miles variation192743.5%53.3%
C49Four knights, symmetrical, Maroczy system9243.5%56.5%
D00Blackmar-Diemer gambit6943.5%43.5%
E11Bogo-Indian defence, Monticelli trap2343.5%39.1%
C03French, Tarrasch328043.5%57.0%
D36QGD, exchange, positional line, 6.Qc253943.4%55.5%
C33KGA, bishop's gambit, Ruy Lopez defence5343.4%51.9%
C45Scotch, Mieses variation191743.3%53.5%
A05Reti, King's Indian attack, Spassky's variation72043.3%51.3%
A59Benko gambit6043.3%65.0%
C45Scotch, Blackburne attack3043.3%51.7%
C45Scotch game326143.3%54.2%
C41Philidor, Nimzovich variation6743.3%59.0%
B01Scandinavian, Marshall variation74043.2%59.9%
A28English, four knights, Stean variation11143.2%56.8%
B32Sicilian, Nimzovich variation3743.2%54.1%
A16English, Anglo-Gruenfeld defense41043.2%54.8%
C92Ruy Lopez, closed, 9.h345943.1%53.6%
C29Vienna gambit, Paulsen attack5143.1%52.9%
B01Scandinavian, Pytel-Wade variation352443.1%58.1%
C75Ruy Lopez, modern Steinitz defence26243.1%52.9%
C78Ruy Lopez, Archangelsk (counterthrust) variation205243.1%55.2%
C33KGA, bishop's gambit, Bogolyubov variation9343.0%50.5%
D31QGD, semi-Slav, Marshall gambit144443.0%55.0%
C42Petrov, classical attack, Chigorin variation73543.0%57.6%
C77Ruy Lopez, Morphy defence32143.0%54.8%
C50Giuoco Pianissimo, Canal variation22143.0%52.3%
C70Ruy Lopez, Caro variation11443.0%57.5%
E10Dzindzikhashvili defence24243.0%52.5%
D51QGD, 4.Bg5 Nbd712143.0%53.7%
B44Sicilian defence41243.0%53.0%
B44Sicilian, Szen (`anti-Taimanov') variation104842.9%53.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3125342.9%58.2%
B01Scandinavian gambit20542.9%55.1%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation34542.9%63.8%
A12English, London defensive system16842.9%53.0%
B72Sicilian, dragon, classical attack16842.9%55.4%
B12Caro-Kann, Edinburgh variation7742.9%56.5%
C15French, Winawer, Alekhine gambit, Kan variation7042.9%52.9%
E23Nimzo-Indian, Spielmann, Karlsbad variation4942.9%45.9%
D45QGD semi-Slav, stonewall defence1442.9%50.0%
D32QGD, Tarrasch defence, Marshall gambit1442.9%57.1%
A58Benko gambit, Nd2 variation1442.9%57.1%
C33KGA, Breyer gambit742.9%50.0%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation742.9%64.3%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
C78Ruy Lopez, Moeller defence80842.8%54.7%
A13English, Neo-Catalan120342.8%52.3%
C42Petrov, Paulsen attack25742.8%51.0%
B04Alekhine's defence, modern, Larsen variation125542.8%59.2%
C77Ruy Lopez, Wormald (Alapin) attack60842.8%53.0%
C63Ruy Lopez, Schliemann defence58742.8%57.7%
D33QGD, Tarrasch, Prague variation22742.7%54.0%
D43QGD semi-Slav1041242.7%53.1%
A52Budapest, Rubinstein variation52242.7%61.8%
C44Scotch gambit, Dubois-Reti defence41242.7%53.9%
C00French defence, Steiner variation100242.7%51.6%
C69Ruy Lopez, exchange variation, 5.O-O125342.7%53.0%
D21QGA, 3.Nf349942.7%57.6%
B15Caro-Kann, Tartakower (Nimzovich) variation58642.7%56.3%
E17Queen's Indian, anti-Queen's Indian system55142.6%54.0%
C00French, Schlechter variation25842.6%52.3%
B58Sicilian, classical25842.6%49.2%
C47Four knights, Belgrade gambit18342.6%52.5%
B18Caro-Kann, classical, 6.h475842.6%54.6%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation54742.6%57.1%
D31QGD, Janowski variation37842.6%54.6%
E64King's Indian, fianchetto, Yugoslav system16242.6%58.3%
D09QGD, Albin counter-gambit, 5.g347242.6%56.5%
E16Queen's Indian, Yates variation53842.6%57.9%
A00Polish, Outflank variation19542.6%46.9%
E60King's Indian, 3.g3270742.5%55.4%
C84Ruy Lopez, closed defence222342.5%52.2%
E21Nimzo-Indian, three knights variation380142.5%54.5%
C49Four knights, double Ruy Lopez26642.5%56.6%
C70Ruy Lopez, Cozio defence deferred58442.5%54.8%
D23QGA, Mannheim variation53042.5%53.9%
C48Four knights, Rubinstein counter-gambit143742.4%52.0%
D40QGD, Semi-Tarrasch defence48342.4%54.6%
B62Sicilian, Richter-Rauzer, 6...e66642.4%59.1%
E00Catalan opening491042.4%55.1%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7262042.4%50.7%
A40Queen's pawn, Keres defence340642.4%56.3%
D29QGA, classical, 8...Bb738042.4%47.2%
C64Ruy Lopez, classical (Cordel) defence39242.3%54.1%
D17QGD Slav, Wiesbaden variation80342.3%57.4%
D11QGD Slav, Breyer variation30042.3%57.8%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence63842.3%53.4%
B41Sicilian, Kan variation27242.3%54.6%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd29142.3%61.0%
C12French, MacCutcheon, Chigorin variation9742.3%49.0%
C27Vienna game25842.2%52.5%
B47Sicilian, Taimanov (Bastrikov) variation466642.2%54.4%
B53Sicilian, Chekhover variation229242.2%52.0%
A59Benko gambit, main line18042.2%68.9%
C53Giuoco Piano, centre-holding variation9042.2%61.1%
A00Grob's attack19942.2%35.2%
D99Gruenfeld defence, Smyslov, main line26342.2%58.7%
C65Ruy Lopez, Berlin defence, 4.O-O25642.2%59.0%
E15Queen's Indian, 4.g3 Bb741542.2%53.9%
C88Ruy Lopez, closed140942.2%53.3%
C50Giuoco Piano249142.2%52.3%
E10Blumenfeld counter-gambit42542.1%55.6%
C88Ruy Lopez, Trajkovic counter-attack67242.1%52.2%
E67King's Indian, fianchetto, classical variation68442.1%55.3%
A00Benko's opening, reversed Alekhine13342.1%45.9%
E29Nimzo-Indian, Saemisch, Capablanca variation3842.1%42.1%
C88Ruy Lopez, closed, 8.c33842.1%57.9%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation1942.1%73.7%
C78Ruy Lopez, Wing attack1942.1%52.6%
B45Sicilian, Taimanov, American attack1942.1%42.1%
C88Ruy Lopez, closed, 7...O-O402642.1%52.9%
D06QGD, Marshall defence37842.1%55.4%
D35QGD, exchange variation47842.1%56.0%
C44Scotch, Goering gambit26442.0%54.0%
D81Gruenfeld, Russian variation78542.0%58.7%
C33KGA, Keres (Mason-Steinitz) gambit6942.0%45.7%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1790842.0%56.5%
A39English, symmetrical, main line with d468842.0%56.2%
C46Four knights game102442.0%51.1%
A29English, four knights, kingside fianchetto804041.9%52.3%
A92Dutch defence, Alekhine variation6241.9%59.7%
D02Queen's pawn game, Krause variation74241.9%55.2%
D11QGD Slav, 3.Nf3433441.9%55.4%
C12French, MacCutcheon variation17941.9%45.0%
C60Ruy Lopez, Cozio defence, Paulsen variation7441.9%65.5%
B23Sicilian, Grand Prix attack, Schofman variation16041.9%52.2%
C24Bishop's opening, Berlin defence199541.9%52.8%
C49Four knights, symmetrical variation22741.9%54.8%
D96Gruenfeld, Russian variation53341.8%51.9%
D22QGA, Alekhine defence54541.8%57.6%
B07Pirc, bayonet (Mariotti) attack5541.8%53.6%
D25QGA, Janowsky-Larsen variation66541.8%58.5%
A13English, Romanishin gambit43341.8%56.7%
C71Ruy Lopez, modern Steinitz defence18941.8%55.3%
C44Ponziani, Steinitz variation54841.8%46.1%
E25Nimzo-Indian, Saemisch variation22541.8%55.1%
D35QGD, exchange, positional line142041.8%54.5%
B92Sicilian, Najdorf, Opovcensky variation648741.8%53.4%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd465441.7%55.4%
E11Bogo-Indian defence, Nimzovich variation203241.7%57.5%
A08Reti, King's Indian attack82241.7%52.7%
A07Reti, King's Indian attack305941.7%53.0%
A07Reti, King's Indian attack, Pachman system21141.7%52.6%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1241.7%62.5%
C29Vienna gambit, Kaufmann variation1241.7%70.8%
D89Gruenfeld, exchange, Sokolsky variation1241.7%45.8%
A86Dutch, Hort-Antoshin system1241.7%54.2%
C48Four knights, Rubinstein counter-gambit, 5.Be21241.7%45.8%
B00KP, Colorado counter1241.7%70.8%
C60Ruy Lopez, Lucena defence1241.7%45.8%
E60King's Indian, Danube gambit1241.7%54.2%
B39Sicilian, accelerated fianchetto, Breyer variation72341.6%58.3%
A37English, symmetrical variation139641.6%51.1%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)461041.6%56.3%
D19QGD Slav, Dutch variation186241.6%56.9%
D02Queen's bishop game244941.6%53.3%
A28English, four knights system48641.6%52.9%
E52Nimzo-Indian, 4.e3, main line with ...b673941.5%50.8%
C42Petrov's defence45541.5%53.1%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation131541.5%53.9%
D02Queen's pawn game754441.5%53.2%
C72Ruy Lopez, modern Steinitz defence, 5.O-O98641.5%57.5%
C21Danish gambit, Soerensen defence21741.5%51.2%
A47Queen's Indian, Marienbad system12341.5%52.4%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation56241.5%54.4%
E07Catalan, closed, Botvinnik variation15241.4%50.3%
E11Bogo-Indian defence234341.4%55.2%
E12Queen's Indian defence83541.4%53.4%
B57Sicilian, Sozin, not Scheveningen32141.4%55.6%
C26Vienna game51941.4%54.0%
E62King's Indian, fianchetto, Larsen system36741.4%60.8%
C80Ruy Lopez, open, 7.Bb351241.4%53.3%
A46Queen's pawn, Yusupov-Rubinstein system124741.4%52.4%
E17Queen's Indian, 5.Bg2 Be75841.4%46.6%
C67Ruy Lopez, Berlin defence, Rosenthal variation5841.4%56.9%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation2941.4%41.4%
E23Nimzo-Indian, Spielmann, San Remo variation2941.4%51.7%
B05Alekhine's defence, modern, Panov variation2941.4%48.3%
C86Ruy Lopez, Worrall attack, sharp line34141.3%52.9%
C50Giuoco Pianissimo, Italian four knights variation64641.3%51.8%
A18English, Mikenas-Carls, Flohr variation54741.3%59.0%
E39Nimzo-Indian, classical, Pirc variation122341.3%55.0%
C33KGA, bishop's gambit, Jaenisch variation15541.3%47.1%
D18QGD Slav, Dutch variation47041.3%58.7%
E08Catalan, closed, Qc2 & b337841.3%52.1%
B44Sicilian, Szen, hedgehog variation25241.3%50.8%
A49King's Indian, fianchetto without c4176941.3%55.6%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
A07Reti, King's Indian attack (Barcza system)819041.2%53.4%
C15French, Winawer (Nimzovich) variation131541.2%54.8%
A05Reti, King's Indian attack206541.2%53.3%
C65Ruy Lopez, Berlin defence638341.2%52.1%
C00French, Wing gambit6841.2%60.3%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C55Two knights, Max Lange attack, Steinitz variation1741.2%67.6%
C88Ruy Lopez, closed, anti-Marshall 8.a4220641.2%53.5%
B83Sicilian, Scheveningen, 6.Be262341.1%53.0%
D15QGD Slav, 4.Nc3582241.1%55.4%
C87Ruy Lopez, closed, Averbach variation48541.0%59.9%
E12Queen's Indian, 4.Nc3606441.0%53.2%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation170741.0%57.1%
C12French, MacCutcheon, Dr. Olland (Dutch) variation13941.0%60.1%
A00Anderssen's opening51741.0%50.3%
D20QGA, 3.e4399541.0%56.6%
C50Hungarian defence24441.0%50.0%
E60King's Indian, 3.Nf3424141.0%57.2%
C44Scotch gambit14441.0%56.6%
D90Gruenfeld, Flohr variation49841.0%52.8%
D10QGD Slav defence555941.0%54.3%
D60QGD, Orthodox defence, Botvinnik variation12740.9%53.5%
C50Giuoco Pianissimo379140.9%53.0%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit22040.9%58.2%
C20KP, Mengarini's opening2240.9%29.5%
D17QGD Slav, Krause attack100540.9%58.6%
C64Ruy Lopez, classical defence, Benelux variation 49940.9%55.9%
D91Gruenfeld, 5.Bg5112840.9%48.5%
E11Bogo-Indian defence, Gruenfeld variation300940.8%56.2%
C89Ruy Lopez, Marshall, main line, 12.d2d424040.8%62.5%
B27Sicilian, Katalimov variation21840.8%58.5%
C82Ruy Lopez, open, Dilworth variation19640.8%60.2%
C83Ruy Lopez, open, 9...Be7, 10.Re14940.8%53.1%
E77King's Indian, Four pawns attack, 6.Be24940.8%44.9%
A01Nimzovich-Larsen attack, symmetrical variation91240.8%50.1%
D00Queen's pawn, Mason variation, Steinitz counter-gambit88340.8%51.5%
D15QGD Slav accepted15740.8%51.0%
C51Evans gambit declined, 5.a421140.8%47.4%
B30Sicilian defence414540.7%54.4%
C10French, Fort Knox variation78340.7%57.3%
B02Alekhine's defence, Brooklyn defence2740.7%61.1%
C49Four knights, Janowski variation2740.7%64.8%
D12QGD Slav, 4.e3 Bf5451640.7%54.7%
E78King's Indian, Four pawns attack, with Be2 and Nf311340.7%57.5%
C23Bishop's opening, Classical variation11340.7%52.2%
A07Reti, King's Indian attack, Yugoslav variation220640.7%53.2%
E03Catalan, open, Alekhine variation5940.7%49.2%
D97Gruenfeld, Russian, Byrne (Simagin) variation21440.7%63.3%
A88Dutch, Leningrad, main variation with c6136340.6%58.5%
B13Caro-Kann, exchange variation138640.6%52.4%
E17Queen's Indian, Opovcensky variation95340.6%55.6%
C15French, Winawer, Alekhine (Maroczy) gambit33040.6%56.4%
C93Ruy Lopez, closed, Smyslov defence27140.6%59.0%
D52QGD, Cambridge Springs defence, Rubinstein variation23940.6%55.4%
D45QGD semi-Slav, 5...Nd785340.6%51.6%
D94Gruenfeld, Makogonov variation14340.6%51.0%
A23English, Bremen system, Keres variation97440.6%50.9%
C36KGA, Abbazia defence (classical defence, modern defence[!])14840.5%59.5%
B09Pirc, Austrian attack, 6.e514840.5%56.8%
C51Evans gambit, Morphy attack3740.5%58.1%
A22English, Bremen, reverse dragon86140.5%51.2%
B02Alekhine's defence, Two pawns' (Lasker's) attack41240.5%52.5%
B90Sicilian, Najdorf, Adams attack218640.5%53.8%
B85Sicilian, Scheveningen, classical15340.5%50.3%
D01Richter-Veresov attack, Veresov variation4240.5%48.8%
C29Vienna gambit, Steinitz variation4240.5%46.4%
A06Tennison (Lemberg, Zukertort) gambit4240.5%51.2%
E14Queen's Indian, 4.e3227340.5%52.6%
B19Caro-Kann, classical, Spassky variation291340.5%56.5%
E46Nimzo-Indian, 4.e3 O-O13640.4%51.8%
C45Scotch, Potter variation77940.4%52.2%
A00Benko's opening1015740.4%52.0%
A33English, symmetrical, Geller variation85640.4%54.0%
B33Sicilian, Sveshnikov variation167040.4%50.8%
B40Sicilian, Anderssen variation107940.4%57.1%
C64Ruy Lopez, Cordel gambit9940.4%55.6%
E68King's Indian, fianchetto, classical variation, 8.e4160740.4%59.6%
B71Sicilian, dragon, Levenfish; Flohr variation5240.4%58.7%
C99Ruy Lopez, closed, Chigorin, 12...c5d492440.4%62.9%
A34English, symmetrical, Rubinstein system52840.3%51.8%
B93Sicilian, Najdorf, 6.f4205540.3%51.1%
B21Sicilian, Smith-Morra gambit106640.3%47.8%
A48King's Indian, Torre attack243540.3%50.3%
A50Queen's Indian accelerated62540.3%57.0%
A97Dutch, Ilyin-Genevsky, Winter variation19140.3%63.6%
C44Ponziani counter-gambit13440.3%60.4%
C60Ruy Lopez, Cozio defence59140.3%53.6%
E90King's Indian, Zinnowitz variation7740.3%55.2%
D98Gruenfeld, Russian, Smyslov variation40040.3%59.9%
A30English, symmetrical variation488640.2%54.2%
C53Giuoco Piano378240.2%52.6%
A11English, Caro-Kann defensive system220140.2%53.4%
B09Pirc, Austrian attack, 6.Bd3165940.2%60.3%
A00Van't Kruijs opening62040.2%50.9%
C28Vienna game68540.1%51.9%
C02French, advance, Steinitz variation69540.1%57.5%
A13English opening, Agincourt variation210540.1%55.0%
D31QGD, semi-Slav158240.1%53.8%
A92Dutch, stonewall variation14740.1%60.9%
E67King's Indian, fianchetto with ...Nd714740.1%58.2%
B11Caro-Kann, Two knights, 3...Bg4145140.1%55.1%
A51Budapest, Fajarowicz variation41440.1%56.8%
B50Sicilian694340.1%52.6%
A31English, symmetrical, Benoni formation153340.1%55.7%
D52QGD, Cambridge Springs defence, Yugoslav variation56240.0%56.9%
D17QGD Slav, Carlsbad variation58740.0%61.6%
D47QGD semi-Slav, Meran, Wade variation737940.0%53.4%
D02Queen's pawn game, Chigorin variation77240.0%56.4%
E10Blumenfeld counter-gambit accepted17040.0%55.9%
C67Ruy Lopez, open Berlin defence, 5...Be711540.0%53.0%
E62King's Indian, fianchetto variation10040.0%54.0%
D89Gruenfeld, Spassky variation, main line, 13.Bd37540.0%48.0%
D46QGD semi-Slav, 6.Bd35040.0%66.0%
C96Ruy Lopez, closed, Borisenko defence4540.0%57.8%
B41Sicilian, Kan, Maroczy bind - Bronstein variation3540.0%37.1%
D94Gruenfeld with e3 Bd32540.0%48.0%
C39KGA, Kieseritsky, Neumann defence2540.0%60.0%
C95Ruy Lopez, closed, Breyer, Simagin variation2540.0%56.0%
C51Evans gambit2040.0%65.0%
C20KP, Lopez opening2040.0%35.0%
C44Scotch, Goering gambit, Bardeleben variation1540.0%46.7%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1540.0%53.3%
C44Scotch, Relfsson gambit ('MacLopez')1040.0%50.0%
C57Two knights defence, Pincus variation1040.0%30.0%
D63QGD, Orthodox defence, Capablanca variation540.0%60.0%
C56Two knights defence, Canal variation540.0%40.0%
D40QGD, Semi-Tarrasch, Levenfish variation540.0%60.0%
C40QP counter-gambit, Maroczy gambit540.0%80.0%
B84Sicilian, Scheveningen (Paulsen), classical variation437940.0%52.4%
A48King's Indian, London system188440.0%53.1%
D05Queen's pawn game113939.9%51.9%
B09Pirc, Austrian attack, dragon formation97439.9%58.2%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack286539.9%55.0%
A76Benoni, classical, 9...Re823339.9%61.6%
D25QGA, 4.e323339.9%57.3%
A17English, Nimzo-English opening271439.9%53.9%
B23Sicilian, closed, 2...Nc6278039.9%52.6%
C86Ruy Lopez, Worrall attack, solid line17339.9%51.2%
A34English, symmetrical variation163039.9%53.9%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation48939.9%59.0%
C26Vienna, Paulsen-Mieses variation92339.9%52.7%
B29Sicilian, Nimzovich-Rubinstein variation125239.9%58.4%
A64Benoni, fianchetto, 11...Re826139.8%49.8%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)169439.8%49.7%
B01Scandinavian (centre counter) defence387439.8%57.7%
E24Nimzo-Indian, Saemisch, Botvinnik variation11339.8%43.8%
E81King's Indian, Saemisch, Byrne variation10839.8%57.9%
A37English, symmetrical, Botvinnik system reversed104039.8%51.9%
B27Sicilian, Hungarian variation394939.8%57.7%
C57Two knights defence, Fritz variation10339.8%50.0%
B55Sicilian, Prins variation, Venice attack10339.8%51.0%
A57Benko gambit half accepted129939.8%58.6%
D31QGD, 3.Nc3133239.8%54.6%
B04Alekhine's defence, modern, Schmid variation18639.8%59.7%
B04Alekhine's defence, modern, Keres variation9339.8%67.2%
A00Polish (Sokolsky) opening291139.8%48.1%
D52QGD25439.8%54.9%
C45Scotch, Romanishin variation8339.8%56.0%
B33Sicilian defence64739.7%55.3%
C47Four knights, Scotch, Krause variation6839.7%64.0%
E94King's Indian, orthodox variation126239.7%55.3%
D50QGD, 4.Bg551439.7%58.8%
A28English, Nenarokov variation12639.7%50.8%
C43Petrov, modern (Steinitz) attack6339.7%56.3%
A46Queen's pawn game571639.7%54.5%
C21Centre game36339.7%55.9%
C42Petrov three knights game42139.7%58.1%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation53239.7%54.2%
E26Nimzo-Indian, Saemisch, O'Kelly variation5839.7%50.9%
C95Ruy Lopez, closed, Breyer, Borisenko variation81539.6%56.7%
A69Benoni, four pawns attack, main line15939.6%55.0%
B01Scandinavian defence164439.6%58.5%
C52Evans gambit44239.6%49.2%
E38Nimzo-Indian, classical, 4...c582639.6%59.5%
D95Gruenfeld with e3 & Qb34839.6%59.4%
C36KGA, Abbazia defence, modern variation80139.6%47.8%
A12English, Capablanca's variation13939.6%46.4%
C65Ruy Lopez, Berlin defence, Beverwijk variation66539.5%57.5%
B96Sicilian, Najdorf, Polugayevsky variation12939.5%54.7%
B08Pirc, classical system, 5.Be2323339.5%58.1%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)50139.5%55.1%
C55Two knights defence (Modern bishop's opening)198239.5%55.8%
C00French, Pelikan variation7639.5%51.3%
B34Sicilian, accelerated fianchetto, exchange variation3839.5%48.7%
C27Vienna, Alekhine variation3839.5%48.7%
A09Reti opening107239.5%54.2%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation25139.4%56.4%
C02French, advance, Wade variation42639.4%58.5%
E85King's Indian, Saemisch, orthodox variation21339.4%55.4%
A92Dutch defence14239.4%62.0%
A48King's Indian, East Indian defence148739.4%52.7%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)215739.4%57.2%
B57Sicilian, Sozin, Benko variation147039.4%51.7%
B43Sicilian, Kan, 5.Nc3420239.4%56.1%
A83Dutch, Staunton gambit, Staunton's line29239.4%50.2%
E44Nimzo-Indian, Fischer variation, 5.Ne276739.4%55.3%
E74King's Indian, Averbakh, 6...c555939.4%58.0%
B03Alekhine's defence, Balogh variation6139.3%57.4%
A06Reti, Nimzovich-Larsen attack450439.3%49.6%
D48QGD semi-Slav, Meran, Reynolds' variation84439.3%56.3%
B13Caro-Kann, exchange, Rubinstein variation23439.3%54.7%
B88Sicilian, Sozin, Leonhardt variation72539.3%55.1%
B56Sicilian230339.3%53.2%
A12English, Torre defensive system11239.3%50.9%
C44Ponziani, Reti variation5639.3%60.7%
A28English, four knights, 4.e3148239.3%52.2%
A93Dutch, stonewall, Botwinnik variation29839.3%60.9%
D04Queen's pawn game141939.3%51.6%
A28English, four knights, Marini variation120839.2%50.2%
B46Sicilian, Taimanov variation397739.2%55.8%
C41Philidor, Improved Hanham variation147139.2%57.9%
C13French, Albin-Alekhine-Chatard attack, Breyer variation10239.2%62.7%
C70Ruy Lopez, Classical defence deferred12539.2%58.0%
C68Ruy Lopez, exchange variation12539.2%53.2%
D70Neo-Gruenfeld (Kemeri) defence28639.2%53.1%
C59Two knights defence21239.2%48.8%
B42Sicilian, Kan, 5.Bd3255739.1%58.1%
C44Scotch gambit, Benima defence6939.1%57.2%
C46Three knights, Schlechter variation4639.1%54.3%
A59Benko gambit, Ne2 variation2339.1%50.0%
B02Alekhine's defence, Steiner variation2339.1%50.0%
C33KGA, bishop's gambit, Paulsen attack2339.1%45.7%
E95King's Indian, orthodox, 7...Nbd7, 8.Re156539.1%56.0%
B25Sicilian, closed, 6.f456039.1%49.4%
B34Sicilian, accelerated fianchetto, modern variation62439.1%53.2%
A99Dutch, Ilyin-Genevsky variation with b339939.1%60.9%
D86Gruenfeld, exchange, Simagin's improved variation22039.1%56.4%
B40Sicilian defence817539.1%54.0%
A10English, Adorjan defence97039.1%51.9%
E22Nimzo-Indian, Spielmann variation71739.1%53.3%
B32Sicilian defence125039.0%55.4%
A22English, Bremen, Smyslov system209639.0%48.7%
C77Ruy Lopez, Morphy defence, Duras variation8239.0%58.5%
C32KGD, Falkbeer, Keres variation4139.0%51.2%
A20English opening1025839.0%53.4%
C06French, Tarrasch, closed variation, main line117239.0%59.8%
A19English, Mikenas-Carls, Sicilian variation73139.0%54.5%
C80Ruy Lopez, open, 6.d45939.0%44.9%
A87Dutch, Leningrad, main variation60339.0%56.0%
B07Pirc, Holmov system7739.0%53.2%
A90Dutch defence139538.9%60.3%
D00Queen's pawn, Mason variation176538.9%53.1%
D03Torre attack (Tartakower variation)94138.9%50.8%
B42Sicilian, Kan, Gipslis variation9038.9%63.9%
C50Giuoco Piano, four knights variation7238.9%54.2%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation5438.9%49.1%
E10Doery defence3638.9%58.3%
E77King's Indian, Four pawns attack, Florentine gambit1838.9%41.7%
D08QGD, Albin counter-gambit, Krenosz variation1838.9%58.3%
C91Ruy Lopez, closed, 9.d4134838.9%58.5%
B03Alekhine's defence, exchange variation89338.9%59.5%
A15English, 1...Nf6 (Anglo-Indian defense)192338.8%55.0%
C22Centre game, Berger variation44838.8%52.0%
B54Sicilian, Prins (Moscow) variation86038.8%54.9%
A08Reti, King's Indian attack, French variation35338.8%49.7%
B32Sicilian, Labourdonnais-Loewenthal variation40238.8%57.0%
B77Sicilian, dragon, Yugoslav attack, 9...Bd726838.8%56.7%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation11638.8%49.6%
A54Old Indian, Ukrainian variation20938.8%54.3%
D55QGD, 6.Nf320938.8%57.2%
A17English opening33338.7%53.0%
A20English, Nimzovich, Flohr variation22238.7%48.2%
D16QGD Slav accepted, Alapin variation26638.7%64.5%
A09Reti accepted52738.7%52.6%
C51Evans gambit declined6238.7%53.2%
A12English, Bled variation3138.7%45.2%
A04Reti opening1266338.7%54.6%
A01Nimzovich-Larsen attack, modern variation442838.7%50.5%
B20Sicilian, Keres variation (2.Ne2)133438.7%52.0%
B95Sicilian, Najdorf, 6...e6159038.7%50.2%
E24Nimzo-Indian, Saemisch variation49938.7%53.0%
A25English, closed, 5.Rb161338.7%52.4%
C17French, Winawer, advance, Bogolyubov variation43238.7%52.2%
C17French, Winawer, advance variation11938.7%58.0%
E00Queen's pawn game65238.7%56.4%
B05Alekhine's defence, modern, Flohr variation20738.6%59.9%
B94Sicilian, Najdorf, 6.Bg5136938.6%53.2%
A24English, Bremen system with ...g624638.6%49.4%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation20238.6%62.4%
E96King's Indian, orthodox, 7...Nbd7, main line10138.6%58.9%
A36English, ultra-symmetrical variation207338.6%52.4%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f435038.6%57.6%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)660738.5%56.5%
B20Sicilian, Steinitz variation64438.5%50.9%
E16Queen's Indian, Riumin variation31738.5%59.0%
D31QGD, semi-Slav, Noteboom variation39538.5%50.6%
A81Dutch defence506438.5%57.0%
B45Sicilian, Taimanov variation247038.5%56.8%
A28English, four knights, Capablanca variation71538.5%53.8%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc3938.5%65.4%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd1338.5%57.7%
D24QGA, 4.Nc336738.4%52.5%
A18English, Mikenas-Carls variation34138.4%57.9%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7143238.4%56.8%
B08Pirc, classical, h3 system57338.4%58.8%
E20Nimzo-Indian, Kmoch variation138638.4%53.6%
D00Queen's pawn game138138.4%50.8%
E76King's Indian, Four pawns attack37338.3%58.3%
C41Philidor, Nimzovich, Rellstab variation4738.3%66.0%
B12Caro-Kann, advance variation1446538.3%56.4%
C90Ruy Lopez, closed (with ...d6)128338.3%51.9%
D45QGD semi-Slav, 5.e352838.3%57.0%
E60King's Indian, Anti-Gruenfeld17038.2%52.1%
A21English, Kramnik-Shirov counterattack320138.2%51.9%
B03Alekhine's defence19938.2%59.3%
C69Ruy Lopez, exchange, Bronstein variation86738.2%50.7%
A06Reti opening110338.2%52.7%
D10QGD Slav defence, Alekhine variation33838.2%57.5%
B42Sicilian, Kan, Polugaievsky variation191338.2%54.9%
A26English, closed system45638.2%51.5%
B07Pirc, 150 attack31238.1%61.7%
B10Caro-Kann, Two knights variation80538.1%57.3%
B10Caro-Kann, closed (Breyer) variation147438.1%53.2%
D16QGD Slav, Steiner variation32038.1%61.9%
D08QGD, Albin counter-gambit64838.1%55.3%
E63King's Indian, fianchetto, Panno variation255438.1%56.8%
A70Benoni, classical with e4 and Nf388238.1%60.2%
B06Robatsch defence, Two knights, Suttles variation115638.1%58.0%
C94Ruy Lopez, closed, Breyer defence11338.1%58.0%
D70Neo-Gruenfeld defence39238.0%55.0%
B04Alekhine's defence, modern, fianchetto variation96338.0%57.6%
D35QGD, 3...Nf615038.0%49.7%
B08Pirc, classical (two knights) system97738.0%58.9%
E91King's Indian, Kazakh variation37438.0%58.0%
C22Centre game, Hall variation2937.9%36.2%
C31KGD, Falkbeer, Nimzovich variation2937.9%53.4%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation2937.9%63.8%
D41QGD, Semi-Tarrasch, San Sebastian variation2937.9%77.6%
C65Ruy Lopez, Berlin defence, Duras variation2937.9%46.6%
C22Centre game, Paulsen attack44337.9%53.7%
B54Sicilian145637.9%55.2%
A86Dutch, Leningrad variation33537.9%57.2%
C90Ruy Lopez, closed, Suetin variation9537.9%57.9%
C67Ruy Lopez, Berlin defence, Cordel variation9537.9%60.0%
C80Ruy Lopez, open, 8...Be6139137.9%44.0%
B48Sicilian, Taimanov variation415637.9%56.4%
C41Philidor, exchange variation112537.9%59.8%
B09Pirc, Austrian attack24337.9%60.1%
D16QGD Slav, Smyslov variation11937.8%60.9%
C11French, Steinitz variation135237.8%54.7%
C20KP, Napoleon's opening4537.8%61.1%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation60937.8%53.9%
A16English, Anglo-Gruenfeld defense, Korchnoi variation9837.8%55.6%
B41Sicilian, Kan, Maroczy bind (Reti variation)71837.7%58.7%
A58Benko gambit accepted113237.7%57.7%
B90Sicilian, Najdorf, Lipnitzky attack146737.7%50.3%
B89Sicilian, Sozin, 7.Be3116237.7%51.5%
A45Queen's pawn game432737.7%53.8%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation6937.7%66.7%
A17English, Queens Indian formation36937.7%58.4%
C61Ruy Lopez, Bird's defence64037.7%56.6%
B56Sicilian, Venice attack8537.6%58.8%
A13English opening324937.6%52.9%
B63Sicilian, Richter-Rauzer, Rauzer attack17837.6%57.0%
A53Old Indian defence153137.6%58.7%
B12Caro-Kann, Tartakower (fantasy) variation105037.6%55.7%
D00Blackmar gambit25837.6%40.9%
C49Four knights, symmetrical, Metger unpin39137.6%51.5%
A47Queen's Indian defence84137.6%50.8%
A16English, Anglo-Gruenfeld, Smyslov defense19737.6%56.9%
A22English, Carls' Bremen system60737.6%54.2%
B07Pirc, Sveshnikov system41837.6%52.3%
C96Ruy Lopez, closed, Keres (...Nd7) defence24537.6%66.1%
A50Queen's pawn game126537.5%56.2%
B02Alekhine's defence, Scandinavian variation53037.5%55.6%
B58Sicilian, Boleslavsky variation51237.5%48.4%
C58Two knights defence39237.5%57.0%
A57Benko gambit, Zaitsev system14437.5%50.7%
C14French, classical, Rubinstein variation4837.5%62.5%
C10French, Frere (Becker) variation3237.5%62.5%
C41Philidor, Hanham, Steiner variation2437.5%64.6%
C57Two knights defence, Fritz, Gruber variation1637.5%43.8%
B00Barnes defence1637.5%81.3%
C15French, Winawer, Alekhine gambit1637.5%56.3%
C45Scotch, Blumenfeld attack1637.5%31.3%
C13French, classical, Frankfurt variation837.5%81.3%
B05Alekhine's defence, modern, Alekhine variation837.5%43.8%
C30KGD, Mafia defence837.5%68.8%
B90Sicilian, Najdorf418237.4%53.9%
C53Giuoco Piano, close variation14737.4%59.5%
A10English opening480637.3%54.8%
A28English, four knights, Nimzovich variation102137.3%53.9%
B33Sicilian, Pelikan, Chelyabinsk variation249537.3%57.7%
C70Ruy Lopez20137.3%53.5%
C55Two knights defence13437.3%51.5%
E72King's Indian, Pomar system6737.3%57.5%
A01Nimzovich-Larsen attack, Indian variation68937.3%49.9%
B23Sicilian, closed521237.3%51.6%
A07Reti, King's Indian attack, Keres variation107037.3%54.3%
B15Caro-Kann, Gurgenidze system47237.3%58.1%
A05Reti opening598437.3%53.0%
D12QGD Slav, exchange variation11037.3%48.6%
C12French, MacCutcheon, Janowski variation16137.3%58.4%
E94King's Indian, orthodox, Donner variation30637.3%58.8%
C29Vienna gambit66937.2%49.7%
B32Sicilian, Flohr variation35237.2%58.4%
E83King's Indian, Saemisch, Panno formation47337.2%56.9%
D07QGD, Chigorin defence, Janowski variation17237.2%63.4%
C70Ruy Lopez, Schliemann defence deferred4337.2%60.5%
B87Sicilian, Sozin with ...a6 and ...b593037.2%49.7%
C22Centre game45737.2%46.0%
B77Sicilian, dragon, Yugoslav attack, 9.Bc415637.2%55.1%
C44Ponziani, Fraser defence7837.2%66.0%
A06Santasiere's folly22637.2%45.6%
C30King's gambit35037.1%57.1%
E09Catalan, closed, main line33437.1%59.9%
C32KGD, Falkbeer, 5.de6237.1%50.8%
B23Sicilian, Grand Prix attack103737.0%49.3%
A40Queen's pawn, Franco-Indian (Keres) defence203137.0%56.3%
E26Nimzo-Indian, Saemisch variation28937.0%55.9%
A00Clemenz (Mead's, Basman's or de Klerk's) opening10037.0%50.5%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd269837.0%62.0%
B24Sicilian, closed69037.0%51.1%
C88Ruy Lopez, closed, Balla variation4637.0%55.4%
B96Sicilian, Najdorf, 7.f4182536.9%51.9%
A46Queen's pawn, Torre attack226236.9%52.4%
C21Danish gambit29836.9%49.3%
A84Dutch defence87836.9%56.7%
A86Dutch with c4 & g318736.9%60.7%
B28Sicilian, O'Kelly variation102236.9%58.3%
E73King's Indian, Semi-Averbakh system14136.9%58.2%
A97Dutch, Ilyin-Genevsky variation17936.9%55.3%
E82King's Indian, Saemisch, double fianchetto variation19836.9%58.3%
C62Ruy Lopez, old Steinitz defence49136.9%55.7%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation31236.9%60.7%
C52Evans gambit, Richardson attack1936.8%28.9%
A26English, Botvinnik system40236.8%53.2%
C20KP, Indian opening14436.8%46.9%
C02French, advance, Milner-Barry gambit14436.8%49.0%
A01Nimzovich-Larsen attack102236.8%51.7%
A63Benoni, fianchetto, 9...Nbd717436.8%64.9%
C01French, exchange, Svenonius variation8736.8%51.7%
A42Pterodactyl defence34036.8%63.4%
A22English opening109936.8%50.8%
A12English, New York (London) defensive system9836.7%43.9%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation42536.7%57.2%
D20QGA, Linares variation12036.7%59.2%
A00Novosibirsk opening3036.7%55.0%
A54Old Indian, Ukrainian variation, 4.Nf348336.6%54.6%
C12French, MacCutcheon, Lasker variation, 8...g643436.6%59.3%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation39636.6%59.7%
B06Robatsch defence, Pseudo-Austrian attack67236.6%53.7%
C17French, Winawer, advance, 5.a358236.6%63.7%
C14French, classical, Steinitz variation89936.6%58.8%
A02Bird's opening440636.6%49.4%
E43Nimzo-Indian, Fischer variation82336.6%53.3%
C31KGD, Nimzovich counter-gambit32036.6%51.7%
C02French, advance, Euwe variation184136.6%55.5%
E84King's Indian, Saemisch, Panno main line74536.5%54.4%
E29Nimzo-Indian, Saemisch, main line18936.5%56.9%
E61King's Indian, Smyslov system12636.5%52.4%
C78Ruy Lopez, ...b5 & ...d67436.5%60.1%
A09Reti, advance variation172736.5%48.8%
B71Sicilian, dragon, Levenfish variation44736.5%52.7%
D90Gruenfeld, Schlechter variation9636.5%53.6%
B83Sicilian, modern Scheveningen, main line with Nb310736.4%55.6%
D07QGD, Chigorin defence130736.4%57.5%
B07Robatsch defence, Geller's system79436.4%57.5%
B82Sicilian, Scheveningen, 6.f463236.4%56.6%
D46QGD semi-Slav, Romih variation19836.4%63.6%
C51Evans gambit, 5...Be77736.4%61.0%
B15Caro-Kann, Alekhine gambit4436.4%45.5%
A83Dutch, Staunton gambit, Lasker variation3336.4%57.6%
A00Battambang opening2236.4%50.0%
C17French, Winawer, advance, Rauzer variation2236.4%63.6%
D86Gruenfeld, exchange, Larsen variation1136.4%54.5%
B03Alekhine's defence, four pawns attack, Planinc variation1136.4%36.4%
A82Dutch, Staunton gambit22336.3%44.6%
A00Dunst (Sleipner, Heinrichsen) opening257236.3%49.8%
C44Ponziani, Leonhardt variation14636.3%50.3%
B33Sicilian, Pelikan, Bird variation27336.3%64.7%
C20King's pawn game11636.2%50.9%
E13Queen's Indian, 4.Nc3, main line32636.2%53.1%
B90Sicilian, Najdorf, Byrne (English) attack2340036.2%53.3%
D31QGD, semi-Slav, Abrahams variation18836.2%43.6%
C11French, Steinitz, Boleslavsky variation454836.2%57.1%
E61King's Indian defence, 3.Nc3171736.2%55.8%
C74Ruy Lopez, modern Steinitz defence, siesta variation13036.2%49.6%
E76King's Indian, Four pawns attack, dynamic line34336.2%52.2%
D00Levitsky attack (Queen's bishop attack)299136.1%50.7%
B12Caro-Kann, 3.Nd226336.1%59.9%
B06Robatsch defence111336.1%58.8%
C37KGA, Rosentreter gambit3636.1%43.1%
B04Alekhine's defence, modern variation33836.1%60.9%
B07Pirc defence266636.1%56.5%
C00French, King's Indian attack300236.1%51.6%
C44Konstantinopolsky opening6136.1%60.7%
C90Ruy Lopez, closed, Pilnik variation92136.0%52.2%
E33Nimzo-Indian, classical, 4...Nc629736.0%55.7%
B60Sicilian, Richter-Rauzer96936.0%58.5%
B10Caro-Kann, Goldman (Spielmann) variation15036.0%51.3%
D30QGD Slav, Semmering variation5036.0%50.0%
A51Budapest, Fajarowicz, Steiner variation5036.0%46.0%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation27836.0%56.8%
D48QGD semi-Slav, Meran, old main line12835.9%53.1%
B23Sicilian, chameleon variation101335.9%57.1%
A96Dutch, classical variation57935.9%59.2%
D52QGD, Cambridge Springs defence, Capablanca variation3935.9%59.0%
E60Queen's pawn, Mengarini attack3935.9%61.5%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack142435.9%58.7%
B42Sicilian, Kan, Swiss cheese variation34035.9%61.2%
A25English, closed system95635.9%53.7%
A17English, Queens Indian, Romanishin variation12035.8%54.6%
E92King's Indian, Gligoric-Taimanov system179535.8%58.6%
D60QGD, Orthodox defence13435.8%53.7%
E15Queen's Indian, Buerger variation6735.8%62.7%
A55Old Indian, main line60635.8%58.5%
C41Philidor's defence50335.8%59.0%
C26Vienna, Falkbeer variation12335.8%56.9%
E08Catalan, closed, 7.Qc215135.8%61.6%
A62Benoni, fianchetto variation158635.8%55.8%
E71King's Indian, Makagonov system (5.h3)112835.7%59.5%
A35English, symmetrical variation42035.7%50.2%
C33KGA, bishop's gambit39235.7%50.3%
C45Scotch, Horwitz attack4235.7%56.0%
C32KGD, Falkbeer, Reti variation2835.7%53.6%
C64Ruy Lopez, classical defence, Charousek variation1435.7%67.9%
C52Evans gambit, Lasker defence1435.7%25.0%
B10Caro-Kann defence328935.7%52.6%
A41Queen's Pawn314635.6%56.0%
A01Nimzovich-Larsen attack, English variation53935.6%49.4%
C25Vienna game45235.6%57.6%
C00French, Two knights variation36535.6%53.2%
E70King's Indian, accelerated Averbakh system20535.6%52.9%
A40Modern defence185735.6%57.0%
B06Robatsch (modern) defence967235.6%56.3%
C27Boden-Kieseritsky gambit4535.6%35.6%
C00French, Reti (Spielmann) variation25635.5%51.4%
B02Alekhine's defence, Maroczy variation16935.5%57.4%
A16English opening196235.5%54.2%
A89Dutch, Leningrad, main variation with Nc664035.5%61.8%
E94King's Indian, orthodox, 7...Nbd7112035.4%60.0%
B76Sicilian, dragon, Yugoslav attack, 7...O-O42635.4%54.3%
C50King's pawn game28535.4%60.5%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation142835.4%55.4%
E51Nimzo-Indian, 4.e3, Ragozin variation4835.4%67.7%
A12English, Caro-Kann defensive system30535.4%51.8%
C25Vienna gambit17835.4%54.2%
A03Bird's opening376235.4%47.9%
C31KGD, Falkbeer counter-gambit31135.4%53.1%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be716435.4%56.1%
B27Sicilian, Quinteros variation8235.4%61.6%
E81King's Indian, Saemisch, 5...O-O306435.3%55.1%
A45Trompovsky attack (Ruth, Opovcensky opening)763035.3%53.2%
D72Neo-Gruenfeld, 5.cd, main line31735.3%61.2%
D67QGD, Orthodox defence, Bd3 line, 11.O-O6835.3%66.2%
C47Four knights, Scotch variation3435.3%52.9%
D49QGD semi-Slav, Meran, Rellstab attack1735.3%58.8%
A07Reti, King's Indian attack (with ...c5)27835.3%50.0%
A36English, symmetrical, Botvinnik system21035.2%49.5%
B25Sicilian, closed38635.2%50.3%
A68Benoni, four pawns attack12535.2%58.4%
B58Sicilian, Boleslavsky, Louma variation5435.2%54.6%
A57Benko gambit140535.2%56.4%
E40Nimzo-Indian, 4.e331935.1%55.8%
E40Nimzo-Indian, 4.e3, Taimanov variation24535.1%60.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation20835.1%65.6%
A71Benoni, classical, 8.Bg517135.1%56.7%
C05French, Tarrasch, Botvinnik variation11435.1%65.8%
E15Queen's Indian, Rubinstein variation19735.0%60.2%
A01Nimzovich-Larsen attack, classical variation228235.0%49.2%
B02Alekhine's defence, Krejcik variation2035.0%47.5%
B02Alekhine's defence, Saemisch attack48635.0%49.8%
C29Vienna gambit, Breyer variation22335.0%52.0%
E10Blumenfeld counter-gambit, Spielmann variation18634.9%58.3%
B97Sicilian, Najdorf, 7...Qb6191234.9%47.3%
E90King's Indian, Larsen variation14634.9%59.2%
D21QGA, Alekhine defense, Borisenko-Furman variation4334.9%45.3%
C19French, Winawer, advance, 6...Ne749634.9%60.8%
A80Dutch364734.9%54.6%
B98Sicilian, Najdorf, 7...Be715234.9%55.6%
D44QGD semi-Slav, Botvinnik system (anti-Meran)10934.9%51.4%
C15French, Winawer, fingerslip variation6634.8%46.2%
A13English, Kurajica defence17834.8%60.7%
A40Queen's pawn384834.8%55.0%
C33KGA, bishop's gambit, Morphy variation6934.8%56.5%
C27Boden-Kieseritsky gambit, Lichtenhein defence2334.8%52.2%
B13Caro-Kann, Panov-Botvinnik, Herzog defence2334.8%52.2%
B07Pirc, Ufimtsev-Pytel variation72534.8%58.1%
A41Robatsch defence, Rossolimo variation21934.7%52.5%
D00Queen's pawn, Chigorin variation103534.7%51.9%
A16English, Anglo-Gruenfeld, Czech defense27434.7%59.7%
E73King's Indian, Averbakh system142234.7%56.2%
B21Sicilian, Grand Prix attack202934.6%52.4%
E31Nimzo-Indian, Leningrad, main line43934.6%49.4%
A25English, closed, Hort variation5234.6%55.8%
C44Inverted Hanham5234.6%44.2%
C67Ruy Lopez, open Berlin defence, Showalter variation2634.6%48.1%
B85Sicilian, Scheveningen, classical, Maroczy system2634.6%55.8%
D52QGD, Cambridge Springs defence, Argentine variation2634.6%44.2%
E72King's Indian with e4 & g315934.6%56.3%
D44QGD semi-Slav, anti-Meran gambit98634.6%58.3%
C57Two knights defence, Wilkes Barre (Traxler) variation13634.6%59.2%
B80Sicilian, Scheveningen, English variation22034.5%55.0%
B27Sicilian defence5534.5%62.7%
B81Sicilian, Scheveningen, Keres attack256034.5%60.2%
D97Gruenfeld, Russian, Levenfish variation2934.5%62.1%
C73Ruy Lopez, modern Steinitz defence, Alapin variation32834.5%50.5%
D33QGD, Tarrasch, Schlechter-Rubinstein system6134.4%56.6%
E41Nimzo-Indian, e3, Huebner variation55534.4%50.9%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)492934.4%56.0%
B00King's pawn opening274734.4%57.0%
B06Robatsch defence, Gurgenidze variation9634.4%63.0%
A18English, Mikenas-Carls, Kevitz variation3234.4%48.4%
B02Alekhine's defence81034.3%54.7%
B50Sicilian, wing gambit deferred3534.3%42.9%
B89Sicilian, Velimirovic attack85834.3%51.9%
A43Old Benoni defence266534.3%56.8%
C11French, Steinitz, Gledhill attack14634.2%52.7%
D10QGD Slav, Winawer counter-gambit30434.2%55.9%
B40Sicilian, Pin variation (Sicilian counter-attack)3834.2%64.5%
C37KGA, Blachly gambit3834.2%30.3%
E30Nimzo-Indian, Leningrad variation102934.2%50.0%
B82Sicilian, Scheveningen, Tal variation15834.2%64.6%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7329234.2%55.6%
E92King's Indian, Petrosian system, Stein variation76734.2%54.0%
B76Sicilian, dragon, Yugoslav attack, Rauser variation117434.2%62.8%
E91King's Indian, 6.Be286434.1%63.6%
E80King's Indian, Saemisch variation71534.1%58.7%
B20Sicilian defence370834.1%50.2%
A75Benoni, classical with ...a6 and 10...Bg414134.0%62.4%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6614134.0%51.9%
A03Bird's opening, Williams gambit5334.0%56.6%
B07Pirc, Byrne variation57833.9%57.1%
E90King's Indian, 5.Nf3134333.9%57.1%
C20Alapin's opening6233.9%57.3%
C38King's knight's gambit6233.9%25.0%
B26Sicilian, closed, 6.Be384233.8%50.1%
A43Old Benoni, Franco-Benoni defence19833.8%62.4%
C02French, advance, Paulsen attack224533.8%54.9%
C53Giuoco Piano, Bird's attack21333.8%50.2%
E93King's Indian, Petrosian system, main line14233.8%53.5%
E60King's Indian defence155433.8%55.3%
D15QGD Slav, 5.e3 (Alekhine variation)23133.8%56.3%
A36English, symmetrical variation15433.8%51.3%
B03Alekhine's defence, four pawns attack, fianchetto variation15433.8%60.4%
A77Benoni, classical, 9...Re8, 10.Nd223733.8%63.7%
B00Owen defence51333.7%60.7%
E75King's Indian, Averbakh, main line26733.7%57.3%
D47QGD semi-Slav, 7.Bc48933.7%58.4%
C39KGA, Kieseritsky, Berlin defence9233.7%42.9%
E69King's Indian, fianchetto, classical main line57933.7%62.8%
A56Benoni defence109333.7%60.3%
E62King's Indian, fianchetto with ...Nc631833.6%55.5%
A53Old Indian, Janowski variation22633.6%55.8%
C19French, Winawer, advance, poisoned pawn variation298333.6%61.6%
B01Scandinavian defence, Lasker variation14633.6%65.4%
A25English, Sicilian reversed121633.6%53.5%
B03Alekhine's defence, four pawns attack30733.6%65.3%
A05Reti, King's Indian attack, Reti-Smyslov variation15833.5%49.1%
B03Alekhine's defence, four pawns attack, 7.Be317633.5%70.2%
B72Sicilian, dragon, 6.Be322733.5%51.5%
A61Benoni defence66733.4%61.4%
D06QGD, Grau (Sahovic) defence33833.4%59.9%
C96Ruy Lopez, closed (10...c5)76333.4%66.4%
E88King's Indian, Saemisch, orthodox, 7.d5 c649433.4%58.0%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation66233.4%60.0%
A41Old Indian, Tartakower (Wade) variation184133.4%59.3%
C74Ruy Lopez, Siesta, Kopayev variation20433.3%55.9%
B84Sicilian, Scheveningen, classical, Nd7 system12933.3%50.8%
E30Nimzo-Indian, Leningrad, ...b5 gambit8433.3%47.6%
C41Philidor, Hanham variation6333.3%62.7%
C45Scotch, Steinitz variation4833.3%58.3%
D30QGD, Capablanca variation4533.3%58.9%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation3633.3%61.1%
C67Ruy Lopez, Berlin defence, Winawer attack3333.3%68.2%
A00Ware (Meadow Hay) opening3033.3%40.0%
C41Philidor, Nimzovich (Jaenisch) variation2733.3%50.0%
C44Ponziani, Romanishin variation2433.3%50.0%
C13French, classical, Anderssen variation2433.3%41.7%
C88Ruy Lopez, closed, 7...d6, 8.d42433.3%25.0%
C44Scotch, Lolli variation2433.3%58.3%
D45QGD semi-Slav, Rubinstein (anti-Meran) system2133.3%45.2%
C57Two knights defence, Lolli attack2133.3%59.5%
C37KGA, Muzio gambit1833.3%33.3%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C11French, Henneberger variation1533.3%50.0%
A45Queen's pawn, Bronstein gambit1233.3%50.0%
D31QGD, semi-Slav, Junge variation1233.3%33.3%
B73Sicilian, dragon, classical, Zollner gambit1233.3%41.7%
B00Lemming defence1233.3%58.3%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1233.3%50.0%
C82Ruy Lopez, open, 9.c3933.3%72.2%
B00Corn stalk defence633.3%33.3%
C37KGA, Silberschmidt gambit633.3%33.3%
C52Evans gambit, Leonhardt variation633.3%50.0%
C33KGA, bishop's gambit, Anderssen variation633.3%50.0%
A00Grob, spike attack633.3%33.3%
C52Evans gambit, Sanders-Alapin variation633.3%50.0%
D53QGD, Lasker variation633.3%66.7%
C11French, Steinitz, Bradford attack333.3%50.0%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
A56Vulture defence333.3%83.3%
C33King's gambit accepted333.3%16.7%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
A00Lasker simul special333.3%50.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence333.3%50.0%
C50Rousseau gambit333.3%50.0%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C39KGA, Kieseritsky, Brentano defence333.3%50.0%
D19QGD Slav, Dutch, Saemisch variation333.3%50.0%
A42Modern defence, Averbakh system88333.3%59.1%
A50Kevitz-Trajkovich defence66233.2%56.2%
E70King's Indian, 4.e4145433.2%58.5%
A91Dutch defence24133.2%52.7%
A85Dutch with c4 & Nc3100133.2%54.9%
C59Two knights defence, Steinitz variation41733.1%48.0%
B16Caro-Kann, Bronstein-Larsen variation64433.1%60.6%
D15QGD Slav, Suechting variation21833.0%59.6%
E66King's Indian, fianchetto, Yugoslav Panno41533.0%57.7%
B20Sicilian, wing gambit10333.0%44.7%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c665032.9%53.4%
D01Richter-Veresov attack93332.9%47.7%
C25Vienna, Paulsen variation22832.9%56.8%
C16French, Winawer, advance variation120432.9%56.9%
C23Bishop's opening35632.9%53.5%
A04Reti v Dutch189332.9%57.3%
A65Benoni, 6.e461532.8%58.0%
B09Pirc, Austrian attack, 6.Be341832.8%57.1%
A02Bird, From gambit28732.8%53.3%
A80Dutch, 2.Bg5 variation188832.7%54.2%
B53Sicilian, Chekhover, Zaitsev variation10432.7%59.6%
B00KP, Nimzovich defence108332.7%58.7%
C37KGA, Quaade gambit4932.7%38.8%
B05Alekhine's defence, modern variation, 4...Bg481832.6%64.6%
A45Paleface attack4632.6%51.1%
B75Sicilian, dragon, Yugoslav attack51932.6%57.7%
C58Two knights defence, Colman variation8632.6%45.3%
B06Robatsch defence, Two knights variation41832.5%59.6%
C16French, Winawer, Petrosian variation29232.5%55.7%
A41Old Indian defence174932.5%53.8%
A10English, Anglo-Dutch defense122732.5%51.5%
A74Benoni, classical, 9...a6, 10.a44032.5%63.8%
B12Caro-Kann defence39732.5%57.3%
A95Dutch, stonewall with Nc332132.4%58.9%
A80Dutch, Krejcik gambit32132.4%53.6%
C92Ruy Lopez, closed, Kholmov variation14232.4%64.1%
A21English opening228832.4%55.4%
C40Gunderam defence13332.3%64.3%
E83King's Indian, Saemisch, 6...Nc619832.3%53.5%
C58Two knights defence, Bogolyubov variation9632.3%43.2%
A40Polish defence12432.3%57.3%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation87032.2%62.5%
A43Old Benoni, Mujannah formation8732.2%63.2%
C97Ruy Lopez, closed, Chigorin defence88032.2%63.4%
C60Ruy Lopez (Spanish opening)8432.1%57.7%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack2832.1%44.6%
B80Sicilian, Scheveningen variation144732.1%54.3%
C02French, advance variation171932.1%56.5%
D00Queen's pawn, stonewall attack8132.1%42.0%
B00St. George (Baker) defence5332.1%59.4%
A41Modern defence15632.1%55.8%
A78Benoni, classical with ...Re8 and ...Na612832.0%61.3%
A00Mieses opening35032.0%50.0%
C68Ruy Lopez, exchange, Romanovsky variation5032.0%52.0%
C40Latvian, Polerio variation2532.0%44.0%
E00Neo-Indian (Seirawan) attack29432.0%50.0%
D97Gruenfeld, Russian variation with e49732.0%61.3%
C34KGA, Fischer defence33531.9%46.1%
C51Evans gambit, Stone-Ware variation28531.9%54.9%
A20English, Nimzovich variation16631.9%54.5%
A84Dutch defence, Rubinstein variation51131.9%57.4%
C00French, Chigorin variation134731.8%50.4%
E77King's Indian, Four pawns attack22331.8%59.4%
B03Alekhine's defence, four pawns attack, Trifunovic variation11031.8%69.5%
E89King's Indian, Saemisch, orthodox main line8831.8%55.7%
C55Two knights, Max Lange attack4431.8%61.4%
C21Halasz gambit2231.8%43.2%
C30KGD, classical, 4.c321731.8%59.2%
E28Nimzo-Indian, Saemisch variation36831.8%52.6%
A83Dutch, Staunton gambit, Chigorin variation10731.8%52.3%
A59Benko gambit, 7.e46331.7%61.9%
E62King's Indian, fianchetto, Simagin variation10131.7%64.4%
B62Sicilian, Richter-Rauzer, Keres variation12031.7%49.2%
B10Caro-Kann, anti-Caro-Kann defence81331.6%60.0%
C29Vienna gambit, Bardeleben variation1931.6%52.6%
C58Two knights defence, Yankovich variation1931.6%26.3%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
E70King's Indian, Kramer system54231.5%57.5%
A90Dutch-Indian, Alekhine variation11131.5%57.2%
A27English, three knights system140631.5%52.1%
A52Budapest defence7331.5%54.1%
A40Beefeater defence5431.5%62.0%
A79Benoni, classical, 11.f310531.4%62.4%
C13French, classical, Tartakower variation3531.4%55.7%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)8331.3%49.4%
A73Benoni, classical, 9.O-O13131.3%59.2%
C18French, Winawer, classical variation45431.3%58.6%
A81Dutch defence, Blackburne variation8031.3%53.1%
D32QGD, Tarrasch defence, 4.cd ed4831.3%44.8%
A60Benoni defence41331.2%58.2%
C05French, Tarrasch, closed variation155631.2%60.5%
C03French, Tarrasch, Guimard variation15731.2%62.1%
C40Latvian, Fraser defence6131.1%68.0%
C51Evans gambit, normal variation6131.1%46.7%
C58Two knights defence, Kieseritsky variation4531.1%57.8%
C13French, Albin-Alekhine-Chatard attack38931.1%55.7%
C46Three knights game37331.1%59.8%
C74Ruy Lopez, modern Steinitz defence19031.1%61.8%
C19French, Winawer, advance, positional main line129831.0%58.7%
A52Budapest, Alekhine variation2931.0%60.3%
B15Caro-Kann defence37431.0%55.3%
C34KGA, Becker defence10031.0%50.5%
C98Ruy Lopez, closed, Chigorin, 12...Nc615230.9%63.5%
C44Ponziani opening37230.9%46.1%
B60Sicilian, Richter-Rauzer, Larsen variation18830.9%61.2%
C34KGA, Bonsch-Osmolovsky variation21430.8%53.7%
A25English, closed system (without ...d6)14630.8%55.1%
D49QGD semi-Slav, Meran, Rabinovich variation7830.8%47.4%
E92King's Indian, classical variation3930.8%48.7%
A06Reti, old Indian attack19230.7%48.2%
A03Bird's opening, Lasker variation14030.7%46.1%
C39KGA, Kieseritsky, Berlin defence, 6.Bc47230.6%41.7%
C51Evans counter-gambit3630.6%56.9%
D52QGD, Cambridge Springs defence, 7.cd9530.5%55.3%
C34KGA, Schallop defence23630.5%53.8%
A04Reti, Pirc-Lisitsin gambit16430.5%48.2%
C10French, Paulsen variation111330.5%60.2%
C44King's pawn game13830.4%50.0%
D08QGD, Albin counter-gambit, Balogh variation2330.4%76.1%
B98Sicilian, Najdorf, Browne variation5630.4%63.4%
B80Sicilian, Scheveningen, fianchetto variation25730.4%51.8%
C00French defence111430.3%56.3%
B09Pirc, Austrian attack, Ljubojevic variation3330.3%48.5%
B99Sicilian, Najdorf, 7...Be7 main line68230.2%53.7%
A52Budapest, Alekhine, Abonyi variation8330.1%60.8%
A98Dutch, Ilyin-Genevsky variation with Qc222030.0%57.7%
C24Bishop's opening, Ponziani gambit2030.0%30.0%
C33KGA, Villemson (Steinitz) gambit2030.0%50.0%
B74Sicilian, dragon, classical, Spielmann variation1030.0%55.0%
C58Two knights defence, Paoli variation1030.0%75.0%
E21Nimzo-Indian, three knights, Korchnoi variation1030.0%35.0%
B12Caro-Kann, advance, Short variation6729.9%61.2%
B00KP, Nimzovich defence, Bogolyubov variation14829.7%60.1%
A67Benoni, Taimanov variation37429.7%62.7%
B24Sicilian, closed, Smyslov variation2729.6%59.3%
C00Lengfellner system2729.6%59.3%
E83King's Indian, Saemisch, Ruban variation2729.6%51.9%
A61Benoni, fianchetto variation7129.6%58.5%
C40Latvian counter-gambit38929.6%59.5%
A00Saragossa opening46729.6%51.0%
C00French, Labourdonnais variation30829.5%45.0%
E73King's Indian, 5.Be26129.5%63.9%
D15QGD Slav, Tolush-Geller gambit17029.4%41.8%
E60King's Indian, 3.g3, counterthrust variation1729.4%32.4%
C14French, classical, Pollock variation1729.4%44.1%
A45Canard opening1729.4%38.2%
B98Sicilian, Najdorf variation37129.4%57.5%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O51629.3%56.7%
C04French, Tarrasch, Guimard main line59529.2%60.8%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation19529.2%59.2%
B72Sicilian, dragon, classical, Amsterdam variation6529.2%48.5%
B03Alekhine's defence, four pawns attack, 6...Nc62429.2%52.1%
A46Queen's pawn, Torre attack, Wagner gambit2429.2%47.9%
B02Alekhine's defence, Spielmann variation2429.2%47.9%
A61Benoni, Nimzovich (knight's tour) variation60429.1%59.6%
D15QGD Slav, Slav gambit7929.1%67.7%
A44Old Benoni defence6929.0%59.4%
A44Semi-Benoni (`blockade variation')43628.9%59.9%
C12French, MacCutcheon, Lasker variation24328.8%60.9%
A21English, Smyslov defence6628.8%61.4%
A42Modern defence, Averbakh system, Kotov variation18128.7%63.0%
C30KGD, Keene's defence9428.7%64.4%
C33KGA, bishop's gambit, Steinitz defence10528.6%50.5%
C30KGD, 2...Nf67028.6%61.4%
C00French, Steinitz attack3528.6%45.7%
C82Ruy Lopez, open, Berlin variation2828.6%67.9%
C41Philidor, Hanham, Delmar variation1428.6%42.9%
C39King's knight's gambit1428.6%50.0%
C51Evans gambit, Fraser attack1428.6%57.1%
C30KGD, classical, Soldatenkov variation728.6%28.6%
B01Scandinavian, Kiel variation728.6%85.7%
C02French, advance, Nimzovich system15128.5%50.7%
C35KGA, Cunningham defence27428.5%51.5%
E99King's Indian, orthodox, Aronin-Taimanov, main line8128.4%66.0%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf614128.4%58.9%
C30KGD, classical variation27628.3%54.3%
A04Reti, Lisitsin gambit deferred4628.3%68.5%
C34King's knight's gambit4628.3%48.9%
E12Queen's Indian, 4.Nc3, Botvinnik variation4628.3%48.9%
B06Robatsch defence, three pawns attack22328.3%59.4%
C19French, Winawer, advance, Smyslov variation22328.3%64.3%
C33KGA, bishop's gambit, Bledow variation18828.2%42.8%
B20Sicilian, wing gambit, Marshall variation9628.1%56.8%
A09Reti accepted, Keres variation6827.9%64.0%
C44Dresden opening1827.8%41.7%
C00French, Alapin variation1827.8%58.3%
A82Dutch, Staunton gambit, Tartakower variation1827.8%58.3%
C02French, advance, Nimzovich variation1827.8%47.2%
C42Petrov, Italian variation6527.7%49.2%
A22English, Bellon gambit4727.7%58.5%
A45Blackmar-Diemer gambit25727.6%52.3%
C20KP, Patzer opening13827.5%41.3%
A21English, Troeger defence17527.4%56.0%
C18French, Winawer, advance variation69427.4%62.5%
C46Three knights, Steinitz variation25627.3%57.0%
A54Old Indian, Dus-Khotimirsky variation2227.3%40.9%
C32KGD, Falkbeer, main line, 7...Bf51127.3%68.2%
E37Nimzo-Indian, classical, San Remo variation1127.3%59.1%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1101927.2%61.5%
E87King's Indian, Saemisch, orthodox, 7.d550827.2%57.1%
D25QGA, Flohr variation12927.1%65.5%
E92King's Indian, Petrosian system15227.0%54.3%
A56Czech Benoni defence44726.8%66.0%
A43Old Benoni, Schmid's system4126.8%59.8%
D00Blackmar-Diemer, Euwe defence4126.8%47.6%
A56Benoni defence, Hromodka system64526.7%62.3%
C12French, MacCutcheon, advance variation1526.7%20.0%
C37KGA, Salvio gambit1526.7%46.7%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence34126.4%56.9%
A80Dutch, Korchnoi attack8026.3%48.1%
C35KGA, Cunningham, Euwe defence13826.1%47.1%
C52Evans gambit, compromised defence5425.9%70.4%
D01Richter-Veresov attack, Richter variation2725.9%57.4%
C25Vienna, Pierce gambit2725.9%53.7%
B22Sicilian, 2.c3, Heidenfeld variation6225.8%45.2%
C12French, MacCutcheon, Bernstein variation3125.8%58.1%
C41Philidor, Larsen variation6625.8%65.9%
A28English, Bradley Beach variation8225.6%39.6%
C33KGA, bishop's gambit, Cozio (Morphy) defence3625.0%34.7%
C45Scotch, Tartakower variation2825.0%44.6%
C14French, classical, Tarrasch variation2425.0%58.3%
C57Two knights defence2025.0%42.5%
C51Evans gambit, Paulsen variation2025.0%67.5%
C13French, classical, Anderssen-Richter variation1625.0%50.0%
B79Sicilian, dragon, Yugoslav attack, 12.h41625.0%62.5%
C40Greco defence1225.0%45.8%
B40Sicilian, Marshall variation825.0%75.0%
C33KGA, Carrera (Basman) gambit825.0%50.0%
C55Two knights, Max Lange attack, Loman defence425.0%37.5%
A00Grob, Romford counter-gambit425.0%62.5%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
C58Two knights defence, Blackburne variation425.0%62.5%
B27Sicilian, Acton extension425.0%87.5%
C12French, MacCutcheon, Duras variation425.0%62.5%
C44Tayler opening425.0%37.5%
A00Global opening425.0%62.5%
A01Nimzovich-Larsen attack, Dutch variation4524.4%58.9%
C31KGD, Falkbeer, Morphy gambit2123.8%50.0%
D08QGD, Albin counter-gambit, Janowski variation2123.8%73.8%
B40Sicilian, Pin, Koch variation8523.5%76.5%
A80Dutch, Manhattan (Alapin, Ulvestad) variation5123.5%51.0%
C52Evans gambit, compromised defence, Paulsen variation1723.5%58.8%
C00French, Reversed Philidor formation1723.5%64.7%
C21Danish gambit, Schlechter defence1723.5%47.1%
D31QGD, Alapin variation1723.5%64.7%
C38KGA, Hanstein gambit1323.1%57.7%
E08Catalan, closed, Spassky gambit1323.1%50.0%
A61Benoni, Uhlmann variation22722.9%41.4%
C57Two knights defence, Fegatello attack9222.8%52.7%
D44QGD semi-Slav, anti-Meran, Szabo variation3122.6%37.1%
D99Gruenfeld defence, Smyslov, Yugoslav variation2722.2%51.9%
B15Caro-Kann, Rasa-Studier gambit1822.2%27.8%
C52Evans gambit, Waller attack922.2%88.9%
C57Two knights defence, Fegatello attack, Leonhardt variation922.2%55.6%
C55Two knights, Max Lange attack, Marshall variation922.2%66.7%
C42Petrov, Cochrane gambit8721.8%36.2%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack15321.6%61.8%
A21English, Keres variation1421.4%46.4%
B20Sicilian, Gloria variation1421.4%46.4%
A00Durkin's attack1421.4%46.4%
C39KGA, Kieseritsky, Rice gambit1921.1%26.3%
C06French, Tarrasch, Leningrad variation1921.1%84.2%
C38KGA, Philidor gambit2920.7%31.0%
A25English, closed, Taimanov variation3420.6%63.2%
A56Czech Benoni, King's Indian system6520.0%62.3%
D00Blackmar-Diemer, Lemberg counter-gambit2020.0%60.0%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation2020.0%65.0%
B02Alekhine's defence, Kmoch variation1520.0%36.7%
A25English, closed, 5.Rb1 Taimanov variation1020.0%60.0%
B02Alekhine's defence, Welling variation1020.0%50.0%
C48Four knights, Marshall variation1020.0%50.0%
C39KGA, Kieseritsky, Paulsen defence1020.0%50.0%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit1020.0%50.0%
E09Catalan, closed, Sokolsky variation520.0%50.0%
C45Scotch, Pulling counter-attack520.0%70.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
B00Reversed Grob (Borg/Basman defence/macho Grob)5219.2%71.2%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation4219.0%52.4%
C80Ruy Lopez, open, Friess attack1118.2%54.5%
A66Benoni, Mikenas variation3517.1%54.3%
C41Philidor, Philidor counter-gambit3016.7%71.7%
B01Scandinavian, Richter variation1216.7%66.7%
B18Caro-Kann, classical, Maroczy attack1216.7%41.7%
C53Giuoco Piano, Mestel variation1216.7%66.7%
B00KP, Nimzovich defence, Marshall gambit616.7%25.0%
C52Evans gambit, Levenfish variation616.7%25.0%
D08QGD, Albin counter-gambit, Lasker trap616.7%58.3%
C03French, Tarrasch, Haberditz variation616.7%75.0%
A01Nimzovich-Larsen attack, Polish variation616.7%58.3%
C33KGA, bishop's gambit, Maurian defence4515.6%41.1%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit1315.4%53.8%
A00Gedult's opening1414.3%42.9%
C14French, classical variation1414.3%42.9%
C43Petrov, Urusov gambit1414.3%71.4%
B62Sicilian, Richter-Rauzer, Richter attack714.3%50.0%
C37KGA, Cochrane gambit714.3%21.4%
A70Benoni, classical without 9.O-O2213.6%52.3%
C30KGD, Norwalde variation2213.6%79.5%
A42Modern defence, Averbakh system, Randspringer variation1513.3%66.7%
C59Two knights defence, Goering variation812.5%31.3%
D51QGD, Alekhine variation812.5%56.3%
C27Vienna, `Frankenstein-Dracula' variation1910.5%78.9%
C31KGD, Falkbeer, Rubinstein variation3010.0%58.3%
B12de Bruycker defence258.0%56.0%
C13French, classical, Vistaneckis (Nimzovich) variation137.7%57.7%
D48QGD semi-Slav, Meran244.2%43.8%
C22Centre game, l'Hermet variation80.0%37.5%
A43Woozle defence80.0%75.0%
B00Fred80.0%75.0%
A00Anti-Borg (Desprez) opening70.0%42.9%
C33KGA, bishop's gambit, classical defence60.0%33.3%
D21QGA, Ericson variation60.0%33.3%
C46Four knights, Schultze-Mueller gambit50.0%20.0%
C37KGA, Salvio gambit, Anderssen counter-attack50.0%60.0%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B40Sicilian, Pin, Jaffe variation40.0%100.0%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
C60Ruy Lopez, Nuernberg variation40.0%50.0%
C57Two knights defence, Fegatello attack, Polerio defence40.0%100.0%
C41Philidor, Philidor counter-gambit, del Rio attack40.0%75.0%
C23Bishop's opening, Lewis gambit40.0%75.0%
C41Philidor, Lopez counter-gambit30.0%66.7%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
A00Amsterdam attack30.0%100.0%
C40King's knight opening20.0%50.0%
C55Giuoco piano20.0%50.0%
A10English, Jaenisch gambit20.0%100.0%
A80Dutch, Von Pretzel gambit20.0%100.0%
A04Reti, Herrstroem gambit20.0%100.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
B10Caro-Kann, Hillbilly attack20.0%50.0%
C33KGA, bishop's gambit, Bryan counter-gambit20.0%0.0%
C35KGA, Cunningham, three pawns gambit20.0%100.0%
C23Bishop's opening, Lopez gambit20.0%0.0%
C51Evans gambit declined, Lange variation20.0%0.0%
B02Alekhine's defence, Two pawns' attack, Mikenas variation20.0%0.0%
C40Latvian, Nimzovich variation20.0%50.0%
C41Philidor, Steinitz variation20.0%0.0%
C53Giuoco Piano, Eisinger variation20.0%100.0%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C51Evans gambit, Ulvestad variation20.0%100.0%
C29Vienna gambit, Wurzburger trap20.0%100.0%
A04Reti, Wade defence20.0%50.0%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
A00Amar gambit10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C78Ruy Lopez, Rabinovich variation10.0%0.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
E36Nimzo-Indian, classical, Noa variation, main line10.0%0.0%
C33KGA, bishop's gambit, McDonnell attack10.0%100.0%
D80Gruenfeld, Lundin variation10.0%0.0%
C41Philidor, Hanham, Kmoch variation10.0%100.0%
A02Bird, From gambit, Lipke variation10.0%0.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
D28QGA, classical, Flohr variation10.0%0.0%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
C44Scotch gambit, Hanneken variation10.0%100.0%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
C52Evans gambit, compromised defence, Potter variation10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%

Created in 2005-2013 by CCRL team
Last games added on May 8, 2021