CCRL 40/40
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 756'425 games
played by 1'967 programs
103446 CPU days (X2 4600+)

White wins: 259'856 (34.4%)
Black wins: 192'693 (25.5%)
Draws: 303'876 (40.2%)
White score: 54.4%

Opening statistics

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

ECOOpeningNumber
of
games
DrawsWhite
score
Commented
PGN
C70Ruy Lopez, Graz variation6100.0%50.0%
C30KGD, classical, Marshall attack3100.0%50.0%
C48Four knights, Rubinstein counter-gambit, 5.Be22100.0%50.0%
C45Scotch, Ghulam Kassim variation2100.0%50.0%
A86Dutch, Hort-Antoshin system2100.0%50.0%
C32KGD, Falkbeer, Charousek gambit2100.0%50.0%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C49Four knights, symmetrical, Blake variation2100.0%50.0%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
C41Philidor, Hanham, Delmar variation2100.0%50.0%
E77King's Indian, Four pawns attack, Florentine gambit2100.0%50.0%
C77Ruy Lopez, Wormald attack, Gruenfeld variation2100.0%50.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence2100.0%50.0%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C44Scotch opening2100.0%50.0%
C43Petrov, modern attack, Steinitz variation1100.0%50.0%
C65Ruy Lopez, Berlin defence, Anderssen variation1100.0%50.0%
A38English, symmetrical, main line with b31100.0%50.0%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
A56Vulture defence1100.0%50.0%
D63QGD, Orthodox defence, Capablanca variation1100.0%50.0%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
B12Caro-Masi defence1100.0%50.0%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C11French, Steinitz, Bradford attack1100.0%50.0%
C53Giuoco Piano, Mestel variation1100.0%50.0%
D50QGD, Semi-Tarrasch, Krause variation1100.0%50.0%
C30KGD, classical, Reti variation1100.0%50.0%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
C30KGD, classical, Svenonius variation1100.0%50.0%
C15French, Winawer, Kondratiyev variation1100.0%50.0%
C31KGD, Falkbeer, 3...e4683.3%58.3%
C29Vienna gambit, Paulsen attack580.0%60.0%
C40Latvian gambit, 3.Bc4580.0%40.0%
C41Philidor, Nimzovich, Klein variation580.0%60.0%
C42Petrov, classical attack, Berger variation1275.0%54.2%
C37KGA, Rosentreter gambit875.0%37.5%
D41QGD, Semi-Tarrasch, Kmoch variation875.0%50.0%
A81Dutch, Leningrad, Karlsbad variation475.0%62.5%
C00French, Alapin variation475.0%62.5%
C21Danish gambit, Collijn defence475.0%37.5%
C31KGD, Falkbeer, Tartakower variation475.0%62.5%
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%
D51QGD, Capablanca anti-Cambridge Springs variation1070.0%65.0%
D57QGD, Lasker defence, Bernstein variation1070.0%45.0%
C37KGA, King's knight's gambit1369.2%65.4%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation1968.4%65.8%
C70Ruy Lopez, fianchetto defence deferred2466.7%58.3%
C57Two knights defence, Ulvestad variation1866.7%44.4%
C44Scotch, Relfsson gambit ('MacLopez')666.7%66.7%
E20Nimzo-Indian, Mikenas attack666.7%50.0%
C41Philidor, Nimzovich, Sokolsky variation666.7%66.7%
C33KGA, bishop's gambit, Maurian defence666.7%50.0%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Konstantinopolsky opening666.7%66.7%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
C40QP counter-gambit, Maroczy gambit366.7%66.7%
C80Ruy Lopez, open, Berger variation366.7%33.3%
A51Budapest, Fajarowicz, Steiner variation366.7%33.3%
C48Four knights, Spielmann variation366.7%33.3%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
B15Caro-Kann, Gurgenidze counter-attack366.7%66.7%
D00Queen's pawn, Anti-Veresov366.7%33.3%
A43Hawk (Habichd) defence366.7%33.3%
C48Four knights, Rubinstein counter-gambit, exchange variation14064.3%52.9%
C65Ruy Lopez, Berlin defence, Mortimer variation1464.3%32.1%
C39KGA, Kieseritsky, Neumann defence1163.6%68.2%
C83Ruy Lopez, open, Malkin variation862.5%68.8%
C31KGD, Falkbeer, 4.d3862.5%68.8%
B01Scandinavian, Mieses-Kotrvc gambit862.5%43.8%
D34QGD, Tarrasch, Reti variation2661.5%61.5%
D05Queen's pawn game, Zukertort variation1861.1%52.8%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd74161.0%50.0%
C21Danish gambit, Soerensen defence2860.7%55.4%
C26Vienna, Mengarini variation1060.0%40.0%
C57Two knights defence, Fritz variation560.0%30.0%
A02Bird, Hobbs gambit560.0%70.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence560.0%30.0%
C30KGD, Keene's defence560.0%70.0%
C02French, advance, Nimzovich variation560.0%50.0%
C31KGD, Falkbeer, Nimzovich variation560.0%70.0%
C49Four knights, symmetrical, Pillsbury variation4259.5%48.8%
C49Four knights, symmetrical, Capablanca variation2259.1%61.4%
C49Four knights, Nimzovich (Paulsen) variation5358.5%57.5%
C41Philidor, Hanham, Krause variation1258.3%37.5%
B18Caro-Kann, classical, Flohr variation7458.1%48.0%
B44Sicilian, Szen variation, Dely-Kasparov gambit1957.9%60.5%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
C23Bishop's opening, Philidor counter-attack14157.4%49.3%
D22QGA, Haberditz variation9857.1%52.0%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation3557.1%54.3%
D95Gruenfeld with e3 & Qb31457.1%64.3%
C42Petrov, classical attack, Krause variation757.1%28.6%
D08QGD, Albin counter-gambit, Alapin variation757.1%57.1%
C25Vienna, Pierce gambit757.1%57.1%
C66Ruy Lopez, closed Berlin defence, Wolf variation5856.9%57.8%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)4456.8%58.0%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit3056.7%45.0%
A06Tennison (Lemberg, Zukertort) gambit1656.3%40.6%
B62Sicilian, Richter-Rauzer, Podvebrady variation1656.3%34.4%
C67Ruy Lopez, open Berlin defence, l'Hermet variation7556.0%49.3%
D27QGA, classical, Geller variation7255.6%52.8%
C65Ruy Lopez, Berlin defence, Nyholm attack6355.6%54.8%
D57QGD, Lasker defence, main line4555.6%52.2%
B07Pirc, bayonet (Mariotti) attack2755.6%57.4%
C53Giuoco Piano, Anderssen variation1855.6%38.9%
A84Dutch, Staunton gambit deferred955.6%27.8%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
A02Bird, From gambit, Lasker variation2955.2%58.6%
D29QGA, classical, Smyslov variation4055.0%45.0%
B23Sicilian, closed, Korchnoi variation11354.9%51.3%
D33QGD, Tarrasch, Folkestone (Swedish) variation4254.8%58.3%
C49Four knights6454.7%49.2%
D87Gruenfeld, exchange, Seville variation7754.5%62.3%
C96Ruy Lopez, closed (8...Na5)2254.5%63.6%
D45QGD semi-Slav, stonewall defence1154.5%54.5%
D65QGD, Orthodox defence, Rubinstein attack, main line1154.5%72.7%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc47054.3%40.0%
C45Scotch, Meitner variation3554.3%55.7%
C86Ruy Lopez, Worrall attack2454.2%56.3%
D30QGD, Vienna variation55354.1%52.5%
C40QP counter-gambit (elephant gambit)1353.8%65.4%
C68Ruy Lopez, exchange, Keres variation8253.7%51.2%
C89Ruy Lopez, Marshall counter-attack48553.6%54.6%
C54Giuoco Piano16853.6%52.4%
E92King's Indian, Andersson variation25453.5%50.4%
C31KGD, Nimzovich counter-gambit1553.3%73.3%
D69QGD, Orthodox defence, classical, 13.de1553.3%53.3%
A12English, New York (London) defensive system3452.9%44.1%
D25QGA, Smyslov variation8752.9%58.6%
E56Nimzo-Indian, 4.e3, main line with 7...Nc630552.8%55.9%
E34Nimzo-Indian, classical, Noa variation71752.6%54.3%
E17Queen's Indian, Euwe variation5952.5%55.1%
C66Ruy Lopez, Berlin defence, hedgehog variation9952.5%57.6%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation2152.4%54.8%
D12QGD Slav, Amsterdam variation2152.4%45.2%
B74Sicilian, dragon, classical, 9.Nb334652.3%47.5%
A92Dutch defence4452.3%58.0%
E05Catalan, open, classical line9252.2%55.4%
C51Evans gambit, Cordel variation6952.2%44.9%
C48Four knights, Spanish variation20952.2%57.7%
D55QGD, Petrosian variation35352.1%53.5%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2552.0%58.0%
C81Ruy Lopez, open, Howell attack13151.9%50.4%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation15851.9%57.6%
C73Ruy Lopez, modern Steinitz defence, Richter variation13351.9%53.8%
D28QGA, classical, 7...b519351.8%56.5%
D28QGA, classical, 7.Qe26251.6%61.3%
E33Nimzo-Indian, classical, 4...Nc66451.6%55.5%
D26QGA, classical variation61951.5%52.6%
C89Ruy Lopez, Marshall, main line, 14...Qh340951.3%51.3%
D73Neo-Gruenfeld, 5.Nf375851.3%55.3%
A54Old Indian, Ukrainian variation8251.2%56.1%
A94Dutch, stonewall with Ba34151.2%57.3%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence4351.2%39.5%
D56QGD, Lasker defence, Teichmann variation9051.1%50.0%
D84Gruenfeld, Gruenfeld gambit accepted4551.1%54.4%
D35QGD, Harrwitz attack18851.1%55.3%
C45Scotch, Schmidt variation58251.0%47.2%
D39QGD, Ragozin, Vienna variation151250.9%51.1%
B20Sicilian, wing gambit5750.9%41.2%
B19Caro-Kann, classical, 7...Nd736850.8%52.9%
C66Ruy Lopez, Berlin defence, 4.O-O, d68550.6%54.7%
E20Nimzo-Indian defence10150.5%51.0%
A28English, four knights, Romanishin variation42850.5%52.8%
D27QGA, classical, 6...a6368050.4%55.1%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)13150.4%55.7%
E65King's Indian, fianchetto, Yugoslav, 7.O-O15950.3%52.2%
C08French, Tarrasch, open, 4.ed ed121150.3%54.5%
B13Caro-Kann, Panov-Botvinnik, normal variation8650.0%56.4%
D06QGD, symmetrical (Austrian) defence3450.0%57.4%
E90King's Indian, Zinnowitz variation3050.0%55.0%
C00French, Wing gambit2850.0%57.1%
C67Ruy Lopez, Berlin defence, Rosenthal variation2450.0%62.5%
A52Budapest defence2050.0%55.0%
D94Gruenfeld, Flohr defence1850.0%58.3%
C92Ruy Lopez, closed, Keres (9...a5) variation1650.0%43.8%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
E77King's Indian, Four pawns attack, 6.Be21450.0%53.6%
C33KGA, Keres (Mason-Steinitz) gambit1450.0%32.1%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
A47Queen's Indian, Marienbad system, Berg variation1250.0%58.3%
C67Ruy Lopez, Berlin defence, Zukertort variation1250.0%58.3%
C80Ruy Lopez, open, Riga variation1050.0%65.0%
B57Sicilian, Magnus Smith trap1050.0%35.0%
D40QGD, Semi-Tarrasch, symmetrical variation850.0%62.5%
C48Four knights, Bardeleben variation850.0%50.0%
D89Gruenfeld, exchange, Sokolsky variation850.0%37.5%
E23Nimzo-Indian, Spielmann, San Remo variation650.0%75.0%
C14French, classical, Stahlberg variation650.0%58.3%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation650.0%75.0%
C29Vienna gambit, Bardeleben variation650.0%25.0%
A00Durkin's attack650.0%41.7%
C41Philidor, Philidor counter-gambit, Zukertort variation650.0%75.0%
B03Alekhine's defence, exchange, Karpov variation650.0%58.3%
C21Halasz gambit450.0%50.0%
B05Alekhine's defence, modern, Vitolins attack450.0%50.0%
C33KGA, bishop's gambit, Paulsen attack450.0%50.0%
C22Centre game, Charousek variation450.0%50.0%
B00Carr's defence450.0%50.0%
A81Dutch, Leningrad, Basman system450.0%75.0%
C32KGD, Falkbeer, Reti variation450.0%50.0%
A03Mujannah opening450.0%25.0%
C51Evans gambit450.0%75.0%
B71Sicilian, dragon, Levenfish; Flohr variation450.0%50.0%
B07Pirc, Chinese variation250.0%25.0%
D19QGD Slav, Dutch, Saemisch variation250.0%25.0%
A83Dutch, Staunton gambit, Alekhine variation250.0%25.0%
B02Alekhine's defence, Krejcik variation250.0%25.0%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C33KGA, bishop's gambit, Boden defence250.0%25.0%
C52Evans gambit, Alapin-Steinitz variation250.0%25.0%
C83Ruy Lopez, open, Breslau variation250.0%75.0%
B01Scandinavian, Richter variation250.0%75.0%
C41Philidor, Paulsen attack250.0%25.0%
C23Bishop's opening, MacDonnell double gambit250.0%25.0%
C51Evans counter-gambit250.0%75.0%
A02Bird's opening, Swiss gambit250.0%75.0%
C24Bishop's opening, Ponziani gambit250.0%25.0%
C10French, Marshall variation250.0%25.0%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C37KGA, Salvio gambit250.0%75.0%
C20KP, King's head opening250.0%25.0%
B00Corn stalk defence250.0%25.0%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation250.0%75.0%
B14Caro-Kann, Panov-Botvinnik attack, 5...g629549.8%53.7%
C47Four knights, Scotch, 4...exd445649.8%53.8%
D47QGD semi-Slav, Meran variation121449.8%54.9%
D48QGD semi-Slav, Meran, 8...a6136149.7%48.8%
D93Gruenfeld with Bf4 e325049.6%52.0%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d512349.6%47.6%
D14QGD Slav, exchange, Trifunovic variation20449.5%52.7%
D14QGD Slav, exchange variation, 6.Bf4 Bf565049.4%51.5%
D16QGD Slav, Soultanbeieff variation37949.3%53.4%
D51QGD, 5...c66349.2%53.2%
C10French, Rubinstein variation203949.1%55.4%
E10Dzindzikhashvili defence5549.1%59.1%
C83Ruy Lopez, open, classical defence16149.1%59.9%
D24QGA, Bogolyubov variation14949.0%56.7%
C42Petrov, Kaufmann attack17848.9%48.6%
C09French, Tarrasch, open variation, main line101748.9%56.9%
C42Petrov, Cozio (Lasker) attack48848.8%52.7%
A12English, Caro-Kann defensive system, Bogolyubov variation8048.8%53.1%
C46Four knights, Gunsberg variation7648.7%49.3%
D79Neo-Gruenfeld, 6.O-O, main line44848.7%54.2%
C67Ruy Lopez, Berlin defence, Minckwitz variation3748.6%62.2%
C90Ruy Lopez, closed, Lutikov variation3748.6%56.8%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc116448.6%55.8%
B10Caro-Kann, anti-anti-Caro-Kann defence126648.6%52.3%
C84Ruy Lopez, closed, centre attack16748.5%46.4%
D53QGD, 4.Bg5 Be7, 5.e3 O-O3348.5%51.5%
E06Catalan, closed, 5.Nf3278148.5%53.8%
D05Colle system16348.5%54.9%
A38English, symmetrical, main line with d313048.5%52.7%
A33English, symmetrical variation140048.4%54.4%
E24Nimzo-Indian, Saemisch variation15548.4%48.1%
C43Petrov, modern (Steinitz) attack3148.4%56.5%
E01Catalan, closed42248.3%51.9%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd518048.3%46.9%
A92Dutch, stonewall variation6048.3%57.5%
D47QGD semi-Slav, neo-Meran (Lundin variation)27648.2%54.5%
B01Scandinavian, Icelandic gambit5448.1%55.6%
D94Gruenfeld, Makogonov variation7548.0%46.7%
C55Two knights defence, Perreux variation2548.0%52.0%
D80Gruenfeld defence66748.0%54.7%
D17QGD Slav, Czech defence34248.0%54.4%
D30QGD72947.9%51.9%
B74Sicilian, dragon, classical, Alekhine variation2347.8%67.4%
B13Caro-Kann, Panov-Botvinnik attack93447.8%53.1%
C82Ruy Lopez, open, Italian variation8847.7%65.9%
C41Philidor, Nimzovich, Larobok variation4447.7%35.2%
C07French, Tarrasch, open variation343347.7%53.5%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation176947.7%55.3%
D27QGA, classical, Rubinstein variation141147.6%55.6%
C11French, Swiss variation4247.6%57.1%
D41QGD, Semi-Tarrasch, 5.cd58247.6%58.0%
D85Gruenfeld, exchange variation246847.6%56.5%
A52Budapest, Adler variation14347.6%55.2%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg712047.5%56.3%
D34QGD, Tarrasch, Prague variation, Normal position63447.5%56.2%
C42Petrov, classical attack70047.4%56.6%
D34QGD, Tarrasch, Prague variation, 9.Bg553247.4%57.5%
C66Ruy Lopez, closed Berlin defence, Showalter variation5547.3%56.4%
D90Gruenfeld, Three knights variation45747.3%54.7%
A14English, Symmetrical, Keres defence50247.2%57.1%
C80Ruy Lopez, open, Bernstein variation81647.2%62.7%
C47Four knights, Belgrade gambit10647.2%53.8%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd348647.1%51.7%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc227247.1%62.5%
B59Sicilian, Boleslavsky variation, 7.Nb311947.1%52.1%
C49Four knights, symmetrical, Maroczy system5147.1%51.0%
B34Sicilian, accelerated fianchetto, exchange variation1747.1%70.6%
D35QGD, exchange, Saemisch variation26847.0%54.5%
D30QGD, Hastings variation48547.0%52.8%
D41QGD, Semi-Tarrasch with e312846.9%52.3%
D26QGA, classical, Steinitz variation3246.9%64.1%
C07French, Tarrasch, Eliskases variation11146.8%53.2%
B80Sicilian, Scheveningen, Vitolins variation4746.8%51.1%
D52QGD, Cambridge Springs defence, Bogoljubow variation38946.8%56.0%
B85Sicilian, Scheveningen, classical main line34046.8%55.4%
D94Gruenfeld, Smyslov defence15446.8%57.1%
C00St. George defence9246.7%64.7%
A30English, symmetrical, hedgehog system252746.7%55.7%
C67Ruy Lopez, Berlin defence, open variation338346.7%54.2%
D32QGD, Tarrasch defence28546.7%54.2%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation18046.7%55.6%
E27Nimzo-Indian, Saemisch variation4546.7%41.1%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1546.7%43.3%
E15Queen's Indian, 4.g3194446.6%55.9%
C42Petrov, classical attack, close variation13146.6%59.2%
D37QGD, 4.Nf3502746.5%52.7%
C89Ruy Lopez, Marshall counter-attack, 11...c616846.4%54.8%
C14French, classical, Alapin variation8446.4%54.2%
C41Philidor, Nimzovich, Rellstab variation2846.4%69.6%
C43Petrov, modern attack, main line19446.4%58.2%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6170346.3%55.5%
D58QGD, Tartakower (Makagonov-Bondarevsky) system486746.3%52.0%
C78Ruy Lopez, 5.O-O105646.3%54.5%
E26Nimzo-Indian, Saemisch variation5446.3%54.6%
D77Neo-Gruenfeld, 6.O-O64646.3%54.3%
D68QGD, Orthodox defence, classical variation6746.3%57.5%
D38QGD, Ragozin variation356446.2%52.4%
E02Catalan, open, 5.Qa413246.2%58.7%
D71Neo-Gruenfeld, 5.cd27746.2%56.0%
D85Gruenfeld, modern exchange variation299346.2%55.9%
C44Ponziani, Jaenisch counter-attack200046.2%53.0%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)2646.2%53.8%
B88Sicilian, Sozin, Fischer variation1346.2%53.8%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
B40Sicilian, Pin variation (Sicilian counter-attack)1346.2%69.2%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system37346.1%53.4%
A50Queen's Indian accelerated14146.1%57.1%
D26QGA, classical variation, 6.O-O14146.1%57.1%
E25Nimzo-Indian, Saemisch, Keres variation26946.1%53.2%
B27Sicilian, Katalimov variation12646.0%61.9%
A40Polish defence5046.0%51.0%
E49Nimzo-Indian, 4.e3, Botvinnik system17446.0%56.3%
C42Petrov, classical attack, Jaenisch variation161246.0%58.3%
D66QGD, Orthodox defence, Bd3 line22245.9%59.5%
D23QGA, Mannheim variation28345.9%52.7%
D20Queen's gambit accepted84745.9%55.7%
D30QGD Slav27045.9%54.8%
C95Ruy Lopez, closed, Breyer, Gligoric variation4845.8%54.2%
B72Sicilian, dragon, classical, Grigoriev variation2445.8%52.1%
C70Ruy Lopez, Classical defence deferred8345.8%61.4%
D13QGD Slav, exchange variation66245.8%55.7%
C70Ruy Lopez3545.7%51.4%
D26QGA, 4...e624345.7%54.5%
E36Nimzo-Indian, classical, Noa variation, 5.a325445.7%52.4%
D55QGD, Neo-orthodox variation, 7.Bxf631145.7%51.8%
A18English, Mikenas-Carls variation9245.7%57.6%
C27Vienna game9245.7%54.3%
A13English, Neo-Catalan accepted104545.6%56.7%
D86Gruenfeld, exchange, classical variation97545.6%55.2%
C80Ruy Lopez, open (Tarrasch) defence5745.6%59.6%
C77Ruy Lopez, four knights (Tarrasch) variation14745.6%56.1%
C42Petrov, Nimzovich attack106045.6%55.0%
E19Queen's Indian, old main line, 9.Qxc3128745.5%58.7%
D31QGD, Charousek (Petrosian) variation131245.5%52.8%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc37745.5%60.4%
C45Scotch, Romanishin variation5545.5%59.1%
C15French, Winawer, Alekhine gambit, Kan variation4445.5%45.5%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2245.5%45.5%
D51QGD1145.5%68.2%
A83Dutch, Staunton gambit, Lasker variation1145.5%40.9%
E10Queen's pawn game379145.4%55.6%
C26Vienna game23645.3%54.0%
D53QGD, 4.Bg5 Be791145.3%54.3%
D56QGD, Lasker defence29845.3%53.5%
D30Queen's gambit declined549645.3%55.7%
D49QGD semi-Slav, Meran, Blumenfeld variation15945.3%50.9%
C43Petrov, modern attack, Trifunovic variation5345.3%49.1%
B58Sicilian, classical20145.3%46.5%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)9545.3%56.3%
A38English, symmetrical variation50245.2%55.5%
D30QGD, Capablanca-Duras variation31245.2%54.3%
D82Gruenfeld, 4.Bf450345.1%53.6%
C43Petrov, modern attack, Symmetrical variation220745.1%53.3%
C48Four knights, Spanish, classical defence16445.1%50.6%
B36Sicilian, accelerated fianchetto, Maroczy bind87945.1%58.0%
A40Queen's pawn, Charlick (Englund) gambit2045.0%62.5%
C44Inverted Hungarian2045.0%57.5%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2045.0%47.5%
C74Ruy Lopez, modern Steinitz defence, siesta variation2045.0%47.5%
D01Richter-Veresov attack, Veresov variation2045.0%47.5%
B18Caro-Kann, classical variation142945.0%54.3%
C70Ruy Lopez, Cozio defence deferred25845.0%53.1%
D31QGD, Janowski variation10945.0%50.0%
D94Gruenfeld, 5.e339644.9%57.8%
D37QGD, classical variation (5.Bf4)385844.9%55.2%
D55QGD, Neo-orthodox variation, 7.Bh412744.9%57.1%
C03French, Tarrasch185844.8%56.9%
D92Gruenfeld, 5.Bf465044.8%57.0%
B97Sicilian, Najdorf, Poisoned pawn variation106844.8%49.7%
D63QGD, Orthodox defence7644.7%57.9%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3139544.7%53.0%
B49Sicilian, Taimanov variation58844.7%58.2%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O19944.7%56.0%
D02Queen's pawn game, Krause variation34044.7%54.4%
C82Ruy Lopez, open, Motzko attack5644.6%58.0%
C42Petrov's defence24044.6%51.5%
D10QGD Slav defence, exchange variation137544.6%55.3%
D61QGD, Orthodox defence, Rubinstein variation21144.5%51.2%
D59QGD, Tartakower variation11044.5%45.9%
B73Sicilian, dragon, classical, 8.O-O34444.5%51.9%
D46QGD semi-Slav, Chigorin defence41644.5%54.0%
C44Scotch, Goering gambit18044.4%57.2%
D49QGD semi-Slav, Meran, Sozin variation15344.4%45.8%
B74Sicilian, dragon, classical, Reti-Tartakower variation8144.4%55.6%
E07Catalan, closed, Botvinnik variation6344.4%42.9%
C54Giuoco Piano, Moeller (Therkatz) attack3644.4%47.2%
B72Sicilian, dragon, classical, Nottingham variation1844.4%55.6%
B07Pirc, Holmov system1844.4%61.1%
A00Amar (Paris) opening1844.4%33.3%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation1844.4%33.3%
D94Gruenfeld with e3 Bd31844.4%55.6%
C23Bishop's opening, Philidor variation944.4%55.6%
C37KGA, Muzio gambit944.4%33.3%
C34King's knight's gambit944.4%33.3%
B02Alekhine's defence, Steiner variation944.4%55.6%
B20Sicilian, wing gambit, Carlsbad variation944.4%44.4%
B01Scandinavian, Marshall variation52044.4%60.1%
B01Scandinavian, Pytel-Wade variation250744.4%58.0%
B02Alekhine's defence, Two pawns' (Lasker's) attack26644.4%54.9%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation152244.3%51.2%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed49444.3%50.5%
E32Nimzo-Indian, classical, Adorjan gambit9744.3%51.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3105744.3%57.4%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb649744.3%57.1%
E46Nimzo-Indian, Reshevsky variation83644.3%51.2%
C11French, Burn variation485244.2%52.9%
A00Polish, Outflank variation10444.2%48.1%
B83Sicilian, modern Scheveningen, main line49344.2%53.8%
D63QGD, Orthodox defence, Swiss (Henneberger) variation8644.2%62.8%
C26Vienna, Falkbeer variation4344.2%54.7%
E12Queen's Indian, Miles variation127044.2%52.6%
C52Evans gambit, Tartakower attack6844.1%44.1%
C72Ruy Lopez, modern Steinitz defence, 5.O-O35644.1%58.8%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)53344.1%53.9%
A28English, four knights system33844.1%51.0%
B36Sicilian, accelerated fianchetto, Gurgenidze variation24344.0%60.3%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)179744.0%54.0%
B20Sicilian, Steinitz variation33444.0%49.9%
A40Queen's pawn, Keres defence152744.0%56.6%
C31KGD, Falkbeer counter-gambit2544.0%54.0%
C01French, exchange variation123744.0%53.6%
C50Giuoco Pianissimo, Canal variation17843.8%52.8%
E41Nimzo-Indian, 4.e3 c564643.8%54.4%
C56Two knights defence13743.8%48.9%
A44Old Benoni defence1643.8%65.6%
A12English, Bled variation1643.8%59.4%
A35English, symmetrical, four knights system193243.7%53.6%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation18343.7%57.9%
D44QGD semi-Slav, 5.Bg5 dc14243.7%49.3%
E59Nimzo-Indian, 4.e3, main line72443.6%53.2%
E18Queen's Indian, old main line, 7.Nc3150643.6%56.6%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation74543.6%55.6%
B22Sicilian, Alapin's variation (2.c3)552043.6%54.5%
A14English, Neo-Catalan declined76243.6%54.2%
A00Grob's attack18643.5%34.7%
B09Pirc, Austrian attack, 6.e58543.5%57.1%
D45QGD semi-Slav, Stoltz variation1123043.5%53.4%
E04Catalan, open, 5.Nf3396643.5%53.3%
C42Petrov, classical attack, Mason variation11343.4%58.8%
C21Centre game14343.4%58.0%
C15French, Winawer, fingerslip variation3043.3%35.0%
C00French defence, Steiner variation68643.3%51.1%
D50QGD, 4.Bg56743.3%53.0%
A58Benko gambit, fianchetto variation14143.3%62.1%
A59Benko gambit3743.2%62.2%
D34QGD, Tarrasch, Prague variation, 7...Be716943.2%55.9%
A30English, symmetrical, hedgehog, flexible formation17643.2%54.5%
C33KGA, bishop's gambit, Jaenisch variation8843.2%48.9%
C46Four knights game57943.2%50.3%
B35Sicilian, accelerated fianchetto, modern variation with Bc4185643.2%52.9%
D31QGD, semi-Slav, Marshall gambit65643.1%53.0%
A00Grob, Fritz gambit5143.1%27.5%
C42Petrov, classical attack, Marshall variation91643.1%57.0%
B44Sicilian defence30443.1%52.1%
D46QGD semi-Slav, Bogolyubov variation15843.0%57.0%
E22Nimzo-Indian, Spielmann variation10043.0%50.5%
B73Sicilian, dragon, classical, Richter variation10043.0%57.5%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation28443.0%64.1%
C91Ruy Lopez, closed, Bogolyubov variation369943.0%53.9%
D80Gruenfeld, Stockholm variation65742.9%54.3%
C63Ruy Lopez, Schliemann defence26842.9%57.3%
C44Ponziani, Caro variation21042.9%49.5%
D06QGD, Marshall defence11242.9%58.9%
C44Ponziani counter-gambit10542.9%57.6%
C13French, classical2842.9%42.9%
E10Doery defence2142.9%54.8%
C25Vienna game, Max Lange defence2142.9%50.0%
B09Pirc, Austrian attack, Ljubojevic variation1442.9%50.0%
C68Ruy Lopez, exchange, Alekhine variation1442.9%42.9%
C33KGA, bishop's gambit, Ruy Lopez defence1442.9%50.0%
C48Four knights, Ranken variation1442.9%64.3%
B21Sicilian, Andreaschek gambit1442.9%57.1%
A51Budapest defence declined742.9%64.3%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation742.9%78.6%
D31QGD, Alapin variation742.9%64.3%
B05Alekhine's defence, modern, Alekhine variation742.9%50.0%
D97Gruenfeld, Russian, Levenfish variation742.9%64.3%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
B17Caro-Kann, Steinitz variation356542.8%53.7%
D15QGD Slav, Schlechter variation27142.8%59.0%
C49Four knights, symmetrical variation18042.8%55.3%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7151542.8%49.8%
E12Queen's Indian, Petrosian system608642.8%54.2%
A15English opening976642.7%53.5%
D42QGD, Semi-Tarrasch, 7.Bd324642.7%56.7%
C60Ruy Lopez, Cozio defence23242.7%50.2%
C92Ruy Lopez, closed, 9.h338242.7%52.2%
C39KGA, Kieseritsky, Kolisch defence7542.7%44.0%
D97Gruenfeld, Russian, Prins variation42942.7%57.9%
C45Scotch game223542.6%53.4%
B77Sicilian, dragon, Yugoslav attack, 9...Bd719742.6%55.8%
D35QGD, exchange variation35242.6%56.5%
C12French, MacCutcheon variation10842.6%50.0%
C17French, Winawer, advance variation5442.6%58.3%
B10Caro-Kann, Goldman (Spielmann) variation4742.6%48.9%
A19English, Mikenas-Carls, Sicilian variation32242.5%54.2%
E00Catalan opening291642.5%55.2%
A00Benko's opening, reversed Alekhine11342.5%48.7%
B83Sicilian, modern Scheveningen40542.5%47.7%
A13English, Wimpey system10642.5%51.4%
B12Caro-Kann, 3.Nd213942.4%58.6%
A07Reti, King's Indian attack211242.4%53.2%
E10Blumenfeld counter-gambit29042.4%55.0%
E62King's Indian, fianchetto, Larsen system25742.4%62.1%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd19142.4%61.0%
C49Four knights, double Ruy Lopez5942.4%63.6%
D11QGD Slav, 4.e3366842.3%55.4%
C64Ruy Lopez, classical (Cordel) defence18942.3%52.4%
C89Ruy Lopez, Marshall, main line, 12.d2d420842.3%63.0%
C46Four knights, Italian variation15642.3%48.7%
E73King's Indian, Semi-Averbakh system2642.3%55.8%
C65Ruy Lopez, Berlin defence, Kaufmann variation2642.3%55.8%
E83King's Indian, Saemisch, Panno formation17542.3%56.6%
D17QGD Slav, Wiesbaden variation59642.3%57.4%
C78Ruy Lopez, Moeller defence54042.2%53.5%
C78Ruy Lopez, Archangelsk (counterthrust) variation147942.2%55.0%
D95Gruenfeld, Botvinnik variation6442.2%50.8%
D40QGD, Semi-Tarrasch defence41542.2%54.8%
A28English, four knights, Stean variation8342.2%59.6%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation10242.2%55.4%
E32Nimzo-Indian, classical variation588142.2%53.6%
B53Sicilian, Chekhover variation103042.1%49.5%
E25Nimzo-Indian, Saemisch, Romanovsky variation7642.1%48.7%
D15QGD Slav accepted7642.1%48.7%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation5742.1%70.2%
A12English, Torre defensive system3842.1%57.9%
A74Benoni, classical, 9...a6, 10.a41942.1%73.7%
C55Two knights, Max Lange attack, Schlechter variation1942.1%52.6%
E00Queen's pawn game37642.0%56.4%
D36QGD, exchange, positional line, 6.Qc221942.0%53.9%
D87Gruenfeld, exchange, Spassky variation46942.0%54.3%
D78Neo-Gruenfeld, 6.O-O c671742.0%54.6%
A32English, symmetrical variation32442.0%58.0%
D81Gruenfeld, Russian variation30542.0%63.0%
A08Reti, King's Indian attack50341.9%52.2%
E60King's Indian, 3.g3138341.9%56.3%
E73King's Indian, 5.Be23141.9%59.7%
B04Alekhine's defence, modern, Larsen variation75641.9%60.6%
D31QGD, 3.Nc370641.9%55.2%
C71Ruy Lopez, modern Steinitz defence10541.9%55.2%
A05Reti, King's Indian attack, Spassky's variation27741.9%52.3%
C77Ruy Lopez, Wormald (Alapin) attack30141.9%53.8%
A16English, Anglo-Gruenfeld defense21541.9%53.0%
D63QGD, Orthodox defence, Swiss, Karlsbad variation15341.8%52.9%
D32QGD, Tarrasch, von Hennig-Schara gambit5541.8%60.9%
E17Queen's Indian, old main line, 6.O-O76341.8%58.5%
A12English, London defensive system12241.8%51.2%
C28Vienna game33541.8%53.4%
E12Queen's Indian defence62041.8%53.8%
D35QGD, 3...Nf67941.8%50.0%
A39English, symmetrical, main line with d440741.8%57.5%
C24Bishop's opening, Berlin defence91741.8%53.9%
C69Ruy Lopez, exchange variation, 5.O-O60641.7%52.9%
B32Sicilian, Labourdonnais-Loewenthal variation20641.7%59.7%
B01Scandinavian gambit13941.7%52.5%
B01Scandinavian (centre counter) defence239241.7%57.0%
A24English, Bremen system with ...g614441.7%48.6%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)6041.7%45.8%
D52QGD, Cambridge Springs defence3641.7%45.8%
B55Sicilian, Prins variation, Venice attack3641.7%51.4%
C51Evans gambit declined, Showalter variation2441.7%50.0%
C42Petrov, Damiano variation2441.7%50.0%
C55Two knights, Max Lange attack, Steinitz variation1241.7%62.5%
E11Bogo-Indian defence, Monticelli trap1241.7%45.8%
C58Two knights defence, Yankovich variation1241.7%20.8%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1241.7%54.2%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1241.7%54.2%
E25Nimzo-Indian, Saemisch variation11341.6%51.8%
C26Vienna, Paulsen-Mieses variation38041.6%53.4%
C87Ruy Lopez, closed, Averbach variation24341.6%59.5%
C00French, Reti (Spielmann) variation15441.6%51.3%
C75Ruy Lopez, modern Steinitz defence14241.5%55.3%
D35QGD, exchange, positional line, 5...c671541.5%54.8%
A97Dutch, Ilyin-Genevsky, Winter variation6541.5%63.8%
D04Queen's pawn game65541.5%50.2%
C50Giuoco Piano42441.5%52.4%
C51Evans gambit declined, 5.a415941.5%45.3%
C88Ruy Lopez, closed120341.5%52.6%
A00Benko's opening574141.5%52.4%
A34English, symmetrical, three knights system107341.5%55.1%
D98Gruenfeld, Russian, Smyslov variation23441.5%60.0%
A07Reti, King's Indian attack (Barcza system)399341.4%53.7%
C44Ponziani, Steinitz variation43741.4%45.7%
B23Sicilian, closed, 2...Nc6157341.4%52.0%
A59Benko gambit, main line11641.4%66.4%
C64Ruy Lopez, Cordel gambit5841.4%58.6%
C34KGA, Becker defence2941.4%48.3%
B47Sicilian, Taimanov (Bastrikov) variation359441.4%54.2%
D43QGD semi-Slav627541.4%52.8%
C77Ruy Lopez, Anderssen variation71141.4%51.2%
B15Caro-Kann, Forgacs variation20841.3%55.3%
C68Ruy Lopez, exchange variation7541.3%51.3%
E21Nimzo-Indian, three knights variation213541.3%53.9%
A72Benoni, classical without 9.O-O4641.3%62.0%
C21Danish gambit10941.3%47.2%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
B70Sicilian, dragon variation66241.2%51.7%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)250941.2%55.9%
C45Scotch, Mieses variation131341.2%54.2%
D10QGD Slav defence, Alekhine variation23341.2%54.9%
C69Ruy Lopez, exchange variation, Alapin gambit26741.2%50.6%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d540841.2%48.8%
C00French, Schlechter variation17041.2%49.4%
C65Ruy Lopez, Berlin defence, 4.O-O15341.2%59.2%
C55Two knights defence5141.2%50.0%
C41Philidor, Nimzovich variation3441.2%61.8%
D54QGD, Anti-neo-orthodox variation3441.2%47.1%
B45Sicilian, Taimanov, American attack1741.2%44.1%
A80Dutch, Manhattan (Alapin, Ulvestad) variation1741.2%61.8%
C33KGA, bishop's gambit, Steinitz defence1741.2%38.2%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C10French, Frere (Becker) variation1741.2%61.8%
D02Queen's pawn game455341.1%52.7%
B57Sicilian, Sozin, not Scheveningen21441.1%56.1%
D11QGD Slav, Breyer variation10741.1%58.9%
A07Reti, King's Indian attack (with ...c5)16341.1%50.0%
C15French, Winawer (Nimzovich) variation66241.1%55.7%
B21Sicilian, Smith-Morra gambit66741.1%47.5%
A13English, Romanishin gambit24641.1%56.3%
A06Reti, Nimzovich-Larsen attack282341.1%49.7%
D09QGD, Albin counter-gambit, 5.g37841.0%61.5%
E96King's Indian, orthodox, 7...Nbd7, main line3941.0%59.0%
C88Ruy Lopez, closed, Balla variation3941.0%48.7%
C69Ruy Lopez, exchange, Gligoric variation62941.0%56.4%
B15Caro-Kann, Tartakower (Nimzovich) variation29541.0%55.1%
D29QGA, classical, 8...Bb730041.0%47.8%
A40Queen's pawn, English defence16141.0%63.4%
C42Petrov, classical attack, Chigorin variation54941.0%57.1%
A29English, four knights, kingside fianchetto583941.0%51.8%
B27Sicilian, Hungarian variation321941.0%57.7%
A21English, Kramnik-Shirov counterattack175041.0%52.5%
D10QGD Slav defence353741.0%53.9%
D08QGD, Albin counter-gambit8341.0%63.9%
C70Ruy Lopez, Caro variation8341.0%59.0%
D24QGA, 4.Nc318841.0%50.8%
C63Ruy Lopez, Schliemann defence, Berger variation33740.9%57.3%
C64Ruy Lopez, classical defence, 4.c323240.9%55.8%
B86Sicilian, Sozin attack14940.9%54.0%
B88Sicilian, Sozin, Leonhardt variation49140.9%54.7%
D00Blackmar gambit19840.9%40.7%
D94Gruenfeld, Opovcensky variation13240.9%54.5%
B50Sicilian325940.9%53.0%
B01Scandinavian defence78040.9%57.9%
C88Ruy Lopez, Trajkovic counter-attack62640.9%51.9%
D19QGD Slav, Dutch variation, main line18640.9%57.5%
B18Caro-Kann, classical, 6.h448540.8%54.6%
C11French defence14740.8%54.4%
B39Sicilian, accelerated fianchetto, Breyer variation59340.8%58.0%
C80Ruy Lopez, open, 7.Bb348340.8%52.9%
A49King's Indian, fianchetto without c497140.8%56.5%
B30Sicilian defence233240.8%54.5%
B20Sicilian, Keres variation (2.Ne2)56440.8%52.5%
B40Sicilian, Anderssen variation69940.8%58.2%
A00Anderssen's opening39040.8%51.4%
B85Sicilian, Scheveningen, classical13040.8%51.9%
C82Ruy Lopez, open, Dilworth variation15740.8%61.1%
A46Queen's pawn, Yusupov-Rubinstein system68240.8%52.3%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence23840.8%52.7%
D35QGD, exchange, positional line89140.7%54.0%
A06Santasiere's folly10840.7%41.7%
B12Caro-Kann, Edinburgh variation2740.7%57.4%
B09Pirc, Austrian attack16740.7%59.9%
A22English, Bremen, reverse dragon61940.7%50.4%
D02Queen's pawn game, Chigorin variation37140.7%58.4%
E16Queen's Indian, Capablanca variation31740.7%56.3%
A13English, Neo-Catalan67640.7%52.9%
A23English, Bremen system, Keres variation53140.7%48.2%
C48Four knights, Rubinstein counter-gambit, Henneberger variation5940.7%50.8%
B23Sicilian, Grand Prix attack, Schofman variation15040.7%53.0%
B25Sicilian, closed, 6.f439640.7%50.9%
A37English, symmetrical variation88640.6%50.1%
D60QGD, Orthodox defence, Rauzer variation3240.6%60.9%
D00Queen's pawn, Mason variation73940.6%50.9%
D45QGD semi-Slav, 5.e339240.6%56.8%
E08Catalan, closed, Qc2 & b318040.6%50.8%
B29Sicilian, Nimzovich-Rubinstein variation61440.6%60.0%
A05Reti, King's Indian attack109540.5%53.4%
A46Queen's pawn game262540.5%54.9%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd451140.5%55.9%
E90King's Indian, Larsen variation7940.5%60.8%
C84Ruy Lopez, closed defence121340.5%51.5%
C88Ruy Lopez, closed, 7...O-O274040.4%52.4%
A31English, symmetrical, Benoni formation83640.4%55.7%
E16Queen's Indian, Riumin variation19840.4%56.1%
A09Reti opening50040.4%53.0%
C50Hungarian defence15640.4%49.7%
C10French, Fort Knox variation58240.4%57.3%
A01Nimzovich-Larsen attack, symmetrical variation59740.4%49.2%
A09Reti accepted22340.4%52.5%
C99Ruy Lopez, closed, Chigorin, 12...c5d490240.4%62.7%
A87Dutch, Leningrad, main variation30040.3%54.5%
A07Reti, King's Indian attack, Yugoslav variation158740.3%52.8%
A09Reti, advance variation68740.3%49.3%
B41Sicilian, Kan variation19640.3%54.8%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1350540.3%56.4%
E81King's Indian, Saemisch, Byrne variation7740.3%53.9%
D48QGD semi-Slav, Meran, Reynolds' variation73340.2%56.3%
A01Nimzovich-Larsen attack, modern variation274640.2%50.5%
A52Budapest, Rubinstein variation34340.2%60.3%
E11Bogo-Indian defence, Gruenfeld variation178540.2%55.9%
A11English, Caro-Kann defensive system118640.2%53.9%
B13Caro-Kann, exchange variation73140.2%52.0%
C82Ruy Lopez, open, St. Petersburg variation18440.2%66.3%
C36KGA, Abbazia defence, modern variation18940.2%45.0%
D11QGD Slav, 3.Nf3200540.1%55.9%
B92Sicilian, Najdorf, Opovcensky variation482540.1%53.1%
C52Evans gambit26740.1%47.8%
A13English opening, Agincourt variation114640.1%54.2%
D12QGD Slav, 4.e3 Bf5281440.0%54.2%
A00Van't Kruijs opening44540.0%51.5%
C44Scotch gambit, Dubois-Reti defence27040.0%52.2%
D22QGA, Alekhine defence20040.0%56.5%
D52QGD12540.0%58.4%
A28English, Nenarokov variation12040.0%51.7%
A64Benoni, fianchetto, 11...Re810540.0%41.9%
D51QGD, 4.Bg5 Nbd76540.0%53.8%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
C77Ruy Lopez, Morphy defence, Duras variation4040.0%55.0%
D46QGD semi-Slav, 6.Bd33540.0%62.9%
A92Dutch defence, Alekhine variation3540.0%62.9%
D70Neo-Gruenfeld (Kemeri) defence3040.0%53.3%
C41Philidor, Hanham variation2540.0%68.0%
C51Evans gambit, Morphy attack2040.0%55.0%
C20KP, Mengarini's opening2040.0%25.0%
E23Nimzo-Indian, Spielmann, Karlsbad variation1540.0%40.0%
C45Scotch, Tartakower variation1540.0%46.7%
C49Four knights, Janowski variation1540.0%60.0%
C41Philidor, Nimzovich (Jaenisch) variation1540.0%53.3%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1040.0%60.0%
C46Three knights, Steinitz, Rosenthal variation540.0%40.0%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence540.0%40.0%
D32QGD, Tarrasch defence, Tarrasch gambit540.0%20.0%
C22Centre game, Hall variation540.0%40.0%
C56Two knights defence, Canal variation540.0%40.0%
D50QGD, Been-Koomen variation540.0%20.0%
C29Vienna gambit, Steinitz variation540.0%40.0%
E78King's Indian, Four pawns attack, with Be2 and Nf3540.0%60.0%
A66Benoni, pawn storm variation540.0%60.0%
C80Ruy Lopez, open, Tartakower variation540.0%40.0%
D20QGA, 3.e4260340.0%56.9%
E53Nimzo-Indian, 4.e3, main line with ...c534839.9%54.7%
A22English, Carls' Bremen system33339.9%54.2%
E12Queen's Indian, 4.Nc3432139.9%53.2%
B93Sicilian, Najdorf, 6.f4152239.9%50.6%
E67King's Indian, fianchetto, classical variation46439.9%55.3%
D52QGD, Cambridge Springs defence, Rubinstein variation15339.9%55.2%
A25English, closed, 5.Rb140939.9%52.2%
B44Sicilian, Szen, hedgehog variation22639.8%50.9%
E10Blumenfeld counter-gambit accepted11339.8%54.4%
A57Benko gambit half accepted76139.8%57.2%
E14Queen's Indian, 4.e3160039.8%53.5%
D15QGD Slav, 4.Nc3349439.8%54.8%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit19139.8%57.6%
D18QGD Slav, Dutch variation24939.8%59.2%
C45Scotch, Potter variation49339.8%51.5%
B42Sicilian, Kan, Gipslis variation7839.7%63.5%
C93Ruy Lopez, closed, Smyslov defence15139.7%58.3%
E29Nimzo-Indian, Saemisch, main line7339.7%55.5%
B56Sicilian143839.7%53.3%
C13French, Albin-Alekhine-Chatard attack, Breyer variation6839.7%65.4%
A57Benko gambit, Zaitsev system6839.7%46.3%
B83Sicilian, Scheveningen, 6.Be251939.7%52.8%
C95Ruy Lopez, closed, Breyer, Borisenko variation70339.7%56.4%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation108639.7%56.7%
B09Pirc, Austrian attack, 6.Bd3107639.7%59.9%
D02Queen's bishop game111439.7%53.0%
E46Nimzo-Indian, Simagin variation11139.6%49.5%
A17English, Nimzo-English opening161839.6%53.5%
C23Bishop's opening, Classical variation4839.6%53.1%
A15English, 1...Nf6 (Anglo-Indian defense)103639.6%55.1%
A28English, four knights, Marini variation75339.6%51.1%
C42Petrov, Paulsen attack13939.6%51.4%
D03Torre attack (Tartakower variation)63239.6%50.6%
E15Queen's Indian, 4.g3 Bb722539.6%53.6%
B19Caro-Kann, classical, Spassky variation260239.5%56.7%
C88Ruy Lopez, closed, anti-Marshall 8.a4146339.5%53.9%
C41Philidor, Improved Hanham variation89139.5%56.2%
A30English, symmetrical variation277039.5%54.4%
A69Benoni, four pawns attack, main line7639.5%46.1%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc63839.5%51.3%
B00St. George (Baker) defence3839.5%59.2%
C02French, advance, Wade variation32239.4%56.7%
E11Bogo-Indian defence134939.4%55.1%
C65Ruy Lopez, Berlin defence251339.4%50.9%
D47QGD semi-Slav, Meran, Wade variation679239.4%53.5%
D23Queen's gambit accepted3339.4%50.0%
C01French, exchange, Svenonius variation3339.4%56.1%
A84Dutch defence50839.4%55.5%
E60King's Indian, 3.Nf3252339.3%57.9%
D31QGD, semi-Slav, Noteboom variation22939.3%52.4%
C39KGA, Kieseritsky, Berlin defence5639.3%41.1%
C46Three knights, Steinitz variation2839.3%55.4%
B11Caro-Kann, Two knights, 3...Bg472639.3%55.7%
B03Alekhine's defence, exchange variation56339.3%58.3%
A48King's Indian, London system94839.2%53.4%
E08Catalan, closed, 7.Qc27939.2%60.1%
D17QGD Slav, Krause attack65039.2%58.2%
C17French, Winawer, advance, Bogolyubov variation33439.2%51.0%
A05Reti, King's Indian attack, Reti-Smyslov variation5139.2%56.9%
C35KGA, Cunningham defence5139.2%47.1%
A70Benoni, classical with e4 and Nf353339.2%59.2%
E52Nimzo-Indian, 4.e3, main line with ...b642639.2%53.2%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)108739.2%48.6%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation22239.2%53.4%
D86Gruenfeld, exchange, Simagin's improved variation9739.2%51.5%
A45Queen's pawn game179239.2%53.9%
A34English, symmetrical variation88139.2%54.1%
C29Vienna gambit16639.2%46.1%
B44Sicilian, Szen (`anti-Taimanov') variation76439.1%54.3%
B32Sicilian, Nimzovich variation2339.1%54.3%
B15Caro-Kann, Alekhine gambit2339.1%50.0%
C38King's knight's gambit2339.1%28.3%
A34English, symmetrical, Rubinstein system36339.1%52.6%
A90Dutch defence92839.1%61.2%
B15Caro-Kann, Gurgenidze system28939.1%57.3%
D91Gruenfeld, 5.Bg583739.1%48.1%
C77Ruy Lopez, Morphy defence19239.1%56.5%
A20English, Nimzovich variation6439.1%57.0%
B57Sicilian, Sozin, Benko variation125239.1%51.7%
B40Sicilian defence442539.1%54.1%
A53Old Indian defence85639.0%56.0%
D00Queen's pawn game44639.0%48.9%
D99Gruenfeld defence, Smyslov, main line15939.0%59.1%
D52QGD, Cambridge Springs defence, Yugoslav variation35439.0%57.3%
C48Four knights, Rubinstein counter-gambit98039.0%52.8%
D25QGA, Janowsky-Larsen variation33139.0%57.9%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack144539.0%55.7%
E17Queen's Indian, anti-Queen's Indian system26739.0%53.2%
B28Sicilian, O'Kelly variation28038.9%55.2%
A33English, symmetrical, Geller variation57838.9%54.2%
D21QGA, 3.Nf322138.9%57.5%
D31QGD, semi-Slav85638.9%55.1%
A48King's Indian, Torre attack145038.9%49.4%
D96Gruenfeld, Russian variation19838.9%55.8%
A78Benoni, classical with ...Re8 and ...Na63638.9%58.3%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d515738.9%50.6%
D16QGD Slav accepted, Alapin variation15738.9%66.6%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation26038.8%58.3%
B09Pirc, Austrian attack, dragon formation74438.8%58.5%
C11French, Steinitz variation92238.8%54.4%
B95Sicilian, Najdorf, 6...e698738.8%49.5%
B07Pirc, Ufimtsev-Pytel variation32538.8%59.7%
B43Sicilian, Kan, 5.Nc3257538.8%56.5%
B72Sicilian, dragon, classical attack8038.8%51.9%
D19QGD Slav, Dutch variation126038.7%57.5%
C86Ruy Lopez, Worrall attack, sharp line20438.7%54.7%
C91Ruy Lopez, closed, 9.d4118838.7%57.9%
A22English, Bremen, Smyslov system140538.7%48.7%
A48King's Indian, East Indian defence74438.7%51.3%
A43Old Benoni, Mujannah formation3138.7%67.7%
B08Pirc, classical system, 5.Be2212738.6%56.9%
A47Queen's Indian defence44038.6%52.3%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)183838.6%56.4%
C64Ruy Lopez, classical defence, Benelux variation 37838.6%56.3%
B84Sicilian, Scheveningen (Paulsen), classical variation350538.6%51.8%
E07Catalan, closed, 6...Nbd75738.6%50.9%
C50Giuoco Pianissimo, Italian four knights variation35038.6%51.6%
D44QGD semi-Slav, Botvinnik system (anti-Meran)7038.6%53.6%
D89Gruenfeld, Spassky variation, main line, 13.Bd37038.6%49.3%
B33Sicilian, Sveshnikov variation130238.6%50.9%
C55Two knights defence (Modern bishop's opening)118838.6%56.0%
E20Nimzo-Indian, Kmoch variation64638.5%53.5%
B10Caro-Kann, closed (Breyer) variation58438.5%52.1%
A20English, Nimzovich, Flohr variation13538.5%42.2%
C50Giuoco Pianissimo144438.5%53.0%
A00Polish (Sokolsky) opening157738.5%48.5%
B32Sicilian defence73838.5%56.2%
A88Dutch, Leningrad, main variation with c678538.5%57.2%
C73Ruy Lopez, modern Steinitz defence, Alapin variation6538.5%54.6%
C17French, Winawer, advance, Russian variation5238.5%53.8%
C11French, Henneberger variation1338.5%50.0%
C65Ruy Lopez, Berlin defence, Duras variation1338.5%50.0%
C27Vienna, Alekhine variation1338.5%50.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system1338.5%50.0%
B08Pirc, classical, h3 system37238.4%59.3%
A81Dutch defence292738.4%56.9%
A36English, ultra-symmetrical variation116638.4%53.0%
E68King's Indian, fianchetto, classical variation, 8.e4115638.4%60.3%
D45QGD semi-Slav, 5...Nd751338.4%54.1%
B23Sicilian, closed273338.4%51.5%
E39Nimzo-Indian, classical, Pirc variation87638.4%55.0%
C30King's gambit7338.4%58.9%
B46Sicilian, Taimanov variation297638.3%55.0%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f425338.3%54.0%
C12French, MacCutcheon, Chigorin variation6038.3%45.8%
C22Centre game39438.3%46.3%
A12English, Caro-Kann defensive system16738.3%49.1%
A10English, Adorjan defence36838.3%54.5%
E94King's Indian, orthodox, Donner variation15438.3%59.4%
E17Queen's Indian, Opovcensky variation61438.3%54.2%
A86Dutch with c4 & g38138.3%66.0%
B06Robatsch defence, Two knights, Suttles variation97538.3%58.4%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)21738.2%54.6%
A50Kevitz-Trajkovich defence29338.2%58.0%
B04Alekhine's defence, modern, Schmid variation14438.2%61.5%
B12Caro-Kann, advance variation918838.1%56.3%
D97Gruenfeld, Russian, Byrne (Simagin) variation11838.1%58.9%
A55Old Indian, main line39638.1%58.2%
E11Bogo-Indian defence, Nimzovich variation134838.1%58.2%
E10Blumenfeld counter-gambit, Spielmann variation6338.1%57.1%
C12French, MacCutcheon, Grigoriev variation2138.1%57.1%
C37KGA, Blachly gambit2138.1%33.3%
E51Nimzo-Indian, 4.e3, Ragozin variation2138.1%66.7%
A20English opening507138.1%54.5%
A04Reti opening693638.0%54.3%
B33Sicilian, Pelikan, Bird variation22138.0%64.3%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation60038.0%54.0%
C74Ruy Lopez, modern Steinitz defence5038.0%57.0%
B45Sicilian, Taimanov variation175838.0%56.8%
C80Ruy Lopez, open, 8...Be6121638.0%43.0%
E61King's Indian, Smyslov system7938.0%53.2%
B02Alekhine's defence, Saemisch attack24538.0%48.8%
E53Nimzo-Indian, 4.e3, Keres variation8737.9%45.4%
D12QGD Slav, exchange variation8737.9%48.9%
A17English opening21137.9%53.6%
A40Queen's pawn, Franco-Indian (Keres) defence85237.9%55.8%
C59Two knights defence19037.9%48.9%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation25637.9%60.0%
C53Giuoco Piano184537.9%52.7%
B54Sicilian62337.9%55.2%
A08Reti, King's Indian attack, French variation25137.8%48.0%
C00French, King's Indian attack196537.8%51.0%
E38Nimzo-Indian, classical, 4...c554037.8%60.4%
D70Neo-Gruenfeld defence18037.8%56.7%
C80Ruy Lopez, open, 6.d44537.8%45.6%
B90Sicilian, Najdorf, Adams attack101237.7%51.4%
C06French, Tarrasch, closed variation, main line98337.7%59.5%
B07Pirc defence146137.7%56.7%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)392837.7%56.1%
A26English, Botvinnik system29237.7%52.4%
E61King's Indian defence, 3.Nc370937.7%55.6%
D00Queen's pawn, Mason variation, Steinitz counter-gambit35937.6%49.2%
A10English opening238437.6%55.0%
C96Ruy Lopez, closed, Keres (...Nd7) defence19737.6%65.0%
A26English, closed system28537.5%52.1%
A18English, Mikenas-Carls, Flohr variation28537.5%59.8%
A50Queen's pawn game53337.5%55.3%
C22Centre game, Berger variation35237.5%54.8%
A76Benoni, classical, 9...Re88837.5%65.3%
C44Ponziani, Fraser defence4837.5%66.7%
B06Robatsch defence, Gurgenidze variation4837.5%58.3%
C34KGA, Bonsch-Osmolovsky variation2437.5%56.3%
D40QGD, Semi-Tarrasch defence, Pillsbury variation2437.5%56.3%
E15Queen's Indian, Buerger variation2437.5%60.4%
E29Nimzo-Indian, Saemisch, Capablanca variation2437.5%43.8%
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
C45Scotch, Blumenfeld attack1637.5%31.3%
C82Ruy Lopez, open, Berlin variation1637.5%68.8%
C45Scotch, Blackburne attack1637.5%50.0%
C32KGD, Falkbeer, 5.de837.5%43.8%
A58Benko gambit, Nd2 variation837.5%56.3%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C41Philidor, Philidor counter-gambit837.5%56.3%
A80Dutch, Korchnoi attack837.5%43.8%
B73Sicilian, dragon, classical, Zollner gambit837.5%43.8%
B74Sicilian, dragon, classical, Spielmann variation837.5%56.3%
D51QGD, Manhattan variation837.5%68.8%
C30KGD, Mafia defence837.5%68.8%
C44Scotch, Goering gambit, Bardeleben variation837.5%43.8%
C17French, Winawer, advance, Rauzer variation837.5%68.8%
C38KGA, Hanstein gambit837.5%43.8%
C13French, classical, Frankfurt variation837.5%81.3%
B00Lemming defence837.5%56.3%
D17QGD Slav, Carlsbad variation46737.5%60.3%
A28English, four knights, Capablanca variation40337.5%55.2%
B25Sicilian, closed21937.4%48.9%
C61Ruy Lopez, Bird's defence14737.4%59.5%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation12337.4%64.2%
B07Pirc, 150 attack22237.4%61.0%
B12Caro-Kann, Tartakower (fantasy) variation54337.4%54.4%
A07Reti, King's Indian attack, Pachman system10737.4%53.3%
E84King's Indian, Saemisch, Panno main line38037.4%52.6%
B96Sicilian, Najdorf, Polugayevsky variation9137.4%53.8%
E67King's Indian, fianchetto with ...Nd77537.3%53.3%
E63King's Indian, fianchetto, Panno variation205837.3%57.2%
C90Ruy Lopez, closed, Suetin variation6737.3%56.0%
A37English, symmetrical, Botvinnik system reversed68137.3%50.7%
C42Petrov three knights game22837.3%57.7%
B10Caro-Kann, Two knights variation27937.3%60.2%
B56Sicilian, Venice attack5137.3%63.7%
A06Reti opening56437.2%53.4%
A40Modern defence79537.2%58.0%
B62Sicilian, Richter-Rauzer, 6...e64337.2%58.1%
A05Reti opening300737.2%53.5%
B07Robatsch defence, Geller's system56537.2%57.0%
B27Sicilian, Quinteros variation3537.1%64.3%
C36KGA, Abbazia defence (classical defence, modern defence[!])3537.1%67.1%
D46QGD semi-Slav, Romih variation16737.1%64.1%
B48Sicilian, Taimanov variation297937.1%55.9%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7107337.1%55.8%
C62Ruy Lopez, old Steinitz defence24037.1%54.8%
D16QGD Slav, Steiner variation20537.1%63.9%
C46Three knights game11637.1%53.9%
A40Queen's pawn193837.0%55.3%
B08Pirc, classical (two knights) system46737.0%57.7%
C14French, classical, Rubinstein variation2737.0%55.6%
C88Ruy Lopez, closed, 8.c32737.0%63.0%
C22Centre game, Paulsen attack18137.0%51.7%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd238137.0%60.8%
D00Levitsky attack (Queen's bishop attack)171037.0%52.3%
C57Two knights defence, Wilkes Barre (Traxler) variation4637.0%53.3%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation6536.9%56.9%
B42Sicilian, Kan, 5.Bd3164436.9%58.0%
B24Sicilian, closed37436.9%48.9%
B02Alekhine's defence, Scandinavian variation14136.9%56.7%
A42Pterodactyl defence32036.9%63.8%
B00King's pawn opening119936.9%57.4%
B63Sicilian, Richter-Rauzer, Rauzer attack13336.8%57.5%
D00Queen's pawn, stonewall attack5736.8%43.0%
C33KGA, bishop's gambit3836.8%47.4%
C52Evans gambit, Richardson attack1936.8%28.9%
C57Two knights defence, Lolli attack1936.8%55.3%
B41Sicilian, Kan, Maroczy bind - Bronstein variation1936.8%28.9%
B54Sicilian, Prins (Moscow) variation37236.8%55.8%
A22English opening68736.8%50.7%
E91King's Indian, Kazakh variation28836.8%55.6%
A17English, Queens Indian formation21236.8%59.9%
A36English, symmetrical variation10636.8%56.1%
C44Ponziani, Leonhardt variation8736.8%46.0%
D25QGA, 4.e38736.8%54.0%
C23Bishop's opening15536.8%54.5%
B58Sicilian, Boleslavsky variation42736.8%47.9%
A57Benko gambit59336.8%56.3%
C49Four knights, symmetrical, Metger unpin32136.8%50.8%
A01Nimzovich-Larsen attack57736.7%52.9%
D05Queen's pawn game50936.7%52.2%
C41Philidor, exchange variation66736.7%58.4%
C12French, MacCutcheon, Janowski variation12836.7%57.4%
A89Dutch, Leningrad, main variation with Nc633536.7%63.4%
A13English opening177636.7%51.7%
D01Richter-Veresov attack39836.7%46.0%
D90Gruenfeld, Flohr variation22936.7%55.0%
E43Nimzo-Indian, Fischer variation54836.7%53.7%
E76King's Indian, Four pawns attack21036.7%60.7%
A43Old Benoni, Franco-Benoni defence9036.7%58.3%
E94King's Indian, orthodox variation95536.6%54.5%
B90Sicilian, Najdorf244636.6%53.5%
B89Sicilian, Sozin, 7.Be397236.6%50.3%
A54Old Indian, Ukrainian variation, 4.Nf318336.6%57.7%
C15French, Winawer, Alekhine (Maroczy) gambit15336.6%54.9%
A90Dutch-Indian, Alekhine variation4136.6%54.9%
E16Queen's Indian, Yates variation30936.6%58.7%
B06Robatsch defence57736.6%58.5%
C41Philidor's defence20836.5%59.6%
C67Ruy Lopez, Berlin defence, Cordel variation5236.5%60.6%
C50Giuoco Piano, four knights variation5236.5%51.0%
B87Sicilian, Sozin with ...a6 and ...b573936.5%51.2%
C90Ruy Lopez, closed (with ...d6)116936.5%51.5%
A83Dutch, Staunton gambit, Staunton's line11536.5%50.4%
A46Queen's pawn, Torre attack117936.5%51.7%
B12Caro-Kann defence18436.4%51.9%
E64King's Indian, fianchetto, Yugoslav system8836.4%59.1%
A16English, Anglo-Gruenfeld defense, Korchnoi variation8836.4%58.0%
D47QGD semi-Slav, 7.Bc45536.4%52.7%
E24Nimzo-Indian, Saemisch, Botvinnik variation4436.4%43.2%
C20King's pawn game2236.4%54.5%
C13French, classical, Tartakower variation2236.4%45.5%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
A45Canard opening1136.4%27.3%
E83King's Indian, Saemisch, Ruban variation1136.4%45.5%
C00French, Reversed Philidor formation1136.4%63.6%
D98Gruenfeld, Russian, Keres variation1136.4%54.5%
A22English, Bellon gambit1136.4%63.6%
A02Bird's opening283736.3%48.8%
B06Robatsch (modern) defence495136.3%56.6%
C58Two knights defence16036.3%56.3%
A28English, four knights, 4.e393936.2%52.0%
E62King's Indian, fianchetto variation5836.2%49.1%
C50King's pawn game21036.2%59.5%
B05Alekhine's defence, modern, Flohr variation9436.2%63.8%
D67QGD, Orthodox defence, Bd3 line, 11.O-O4736.2%64.9%
A01Nimzovich-Larsen attack, classical variation92936.2%49.9%
B41Sicilian, Kan, Maroczy bind (Reti variation)41536.1%57.6%
A01Nimzovich-Larsen attack, English variation15536.1%50.3%
B42Sicilian, Kan, Polugaievsky variation123536.1%54.3%
D52QGD, Cambridge Springs defence, Capablanca variation3636.1%59.7%
C51Evans gambit, 5...Be73636.1%56.9%
A25English, closed, Hort variation3636.1%54.2%
C53Giuoco Piano, centre-holding variation3636.1%59.7%
A36English, symmetrical, Botvinnik system reversed6136.1%55.7%
B02Alekhine's defence, Maroczy variation8636.0%57.6%
B83Sicilian, modern Scheveningen, main line with Nb38636.0%57.6%
B34Sicilian, accelerated fianchetto, modern variation30836.0%52.4%
A41Robatsch defence, Rossolimo variation11136.0%50.5%
B85Sicilian, Scheveningen, classical, Maroczy system2536.0%54.0%
E92King's Indian, classical variation2536.0%38.0%
A03Bird's opening290636.0%47.8%
C12French, MacCutcheon, Lasker variation, 8...g636436.0%59.5%
C00French, Pelikan variation6435.9%52.3%
C02French, advance, Euwe variation123635.9%54.2%
E44Nimzo-Indian, Fischer variation, 5.Ne230935.9%55.2%
D63QGD, Orthodox defence, 7.Rc120935.9%57.7%
A96Dutch, classical variation17035.9%62.1%
B20Sicilian defence189035.9%50.6%
A16English opening121335.9%53.1%
B94Sicilian, Najdorf, 6.Bg568935.8%53.0%
C65Ruy Lopez, Berlin defence, Beverwijk variation46635.8%57.6%
C44Ponziani opening29335.8%44.5%
A00Dunst (Sleipner, Heinrichsen) opening149335.8%49.6%
A47Queen's Indian, Marienbad system6735.8%53.7%
E62King's Indian, fianchetto, Simagin variation8135.8%63.6%
B02Alekhine's defence52035.8%55.0%
B21Sicilian, Grand Prix attack141835.8%52.5%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation17935.8%60.9%
B10Caro-Kann defence194435.8%53.0%
B23Sicilian, Grand Prix attack63535.7%49.5%
B33Sicilian, Pelikan, Chelyabinsk variation201035.7%57.3%
E15Queen's Indian, Rubinstein variation11235.7%58.0%
B82Sicilian, Scheveningen, Tal variation9835.7%59.7%
C44Scotch, Lolli variation1435.7%53.6%
C66Ruy Lopez, closed Berlin defence, Bernstein variation1435.7%53.6%
B13Caro-Kann, Panov-Botvinnik, Herzog defence1435.7%46.4%
B02Alekhine's defence, Spielmann variation1435.7%46.4%
A41Queen's Pawn183035.7%54.2%
A82Dutch, Staunton gambit10135.6%34.7%
B90Sicilian, Najdorf, Lipnitzky attack88135.6%49.9%
E76King's Indian, Four pawns attack, dynamic line14635.6%53.4%
E13Queen's Indian, 4.Nc3, main line20835.6%52.4%
C00French, Two knights variation19435.6%51.3%
A45Trompovsky attack (Ruth, Opovcensky opening)332935.6%52.1%
B58Sicilian, Boleslavsky, Louma variation4535.6%57.8%
C90Ruy Lopez, closed, Pilnik variation79935.5%51.8%
B13Caro-Kann, exchange, Rubinstein variation12135.5%52.5%
B03Alekhine's defence, four pawns attack, 7.Be310735.5%67.3%
E62King's Indian, fianchetto with ...Nc621735.5%54.6%
C47Four knights, Scotch, Krause variation3135.5%62.9%
A85Dutch with c4 & Nc357535.5%54.6%
B42Sicilian, Kan, Swiss cheese variation25135.5%61.6%
C51Evans gambit, Stone-Ware variation19235.4%50.5%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack121535.4%58.4%
A80Dutch174435.4%54.4%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation29735.4%51.7%
D07QGD, Chigorin defence66235.3%57.3%
A43Old Benoni defence128835.3%59.2%
A12English, Capablanca's variation6835.3%47.1%
D32QGD, Tarrasch defence, 4.cd ed1735.3%58.8%
E95King's Indian, orthodox, 7...Nbd7, 8.Re131235.3%55.8%
B90Sicilian, Najdorf, Byrne (English) attack1837435.2%53.2%
A68Benoni, four pawns attack7135.2%55.6%
D44QGD semi-Slav, anti-Meran gambit75035.2%58.3%
D31QGD, semi-Slav, Abrahams variation12535.2%44.0%
E72King's Indian with e4 & g35435.2%56.5%
B60Sicilian, Richter-Rauzer57235.1%57.8%
D48QGD semi-Slav, Meran, old main line11135.1%52.7%
E30Nimzo-Indian, Leningrad variation54135.1%48.2%
B23Sicilian, chameleon variation52435.1%58.4%
C11French, Steinitz, Boleslavsky variation315935.1%57.5%
B03Alekhine's defence, four pawns attack, Trifunovic variation5735.1%68.4%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation90135.1%55.6%
C44King's pawn game7735.1%51.3%
C14French, classical, Steinitz variation65735.0%57.8%
A99Dutch, Ilyin-Genevsky variation with b38035.0%65.0%
D20QGA, Linares variation8035.0%61.3%
C45Scotch, Steinitz variation4035.0%55.0%
C95Ruy Lopez, closed, Breyer, Simagin variation2035.0%57.5%
C41Philidor, Hanham, Steiner variation2035.0%67.5%
A62Benoni, fianchetto variation66935.0%56.2%
B84Sicilian, Scheveningen, classical, Nd7 system6334.9%49.2%
E40Nimzo-Indian, 4.e3, Taimanov variation6334.9%63.5%
B33Sicilian defence40434.9%53.8%
C83Ruy Lopez, open, 9...Be7, 10.Re14334.9%54.7%
E60King's Indian defence54834.9%57.0%
A86Dutch, Leningrad variation13234.8%56.1%
A07Reti, King's Indian attack, Keres variation64134.8%54.4%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation4634.8%52.2%
A03Bird's opening, Williams gambit2334.8%65.2%
E74King's Indian, Averbakh, 6...c523334.8%56.0%
D06QGD, Grau (Sahovic) defence9534.7%62.6%
B76Sicilian, dragon, Yugoslav attack, 7...O-O29134.7%52.1%
A27English, three knights system46134.7%53.1%
A41Old Indian, Tartakower (Wade) variation81934.7%61.3%
A35English, symmetrical variation20834.6%51.9%
A04Reti v Dutch91334.6%58.8%
B72Sicilian, dragon, 6.Be38134.6%54.3%
C16French, Winawer, advance variation68134.5%57.6%
B07Pirc, Sveshnikov system28434.5%52.8%
D00Queen's pawn, Chigorin variation29334.5%52.0%
A02Bird, From gambit14834.5%50.3%
A25English, closed system71434.5%53.8%
B04Alekhine's defence, modern, fianchetto variation61934.4%57.8%
C02French, advance, Milner-Barry gambit9634.4%46.4%
A41Modern defence6434.4%56.3%
A45Paleface attack3234.4%45.3%
B81Sicilian, Scheveningen, Keres attack215934.4%59.5%
C19French, Winawer, advance, 6...Ne725934.4%56.6%
A80Dutch, Krejcik gambit26534.3%54.2%
A63Benoni, fianchetto, 9...Nbd77034.3%64.3%
A28English, four knights, Nimzovich variation45834.3%54.0%
E71King's Indian, Makagonov system (5.h3)63734.2%59.5%
E93King's Indian, Petrosian system, main line7634.2%50.0%
B06Robatsch defence, Pseudo-Austrian attack44234.2%55.3%
C25Vienna game24334.2%60.7%
E60King's Indian, Anti-Gruenfeld4434.1%60.2%
B04Alekhine's defence, modern, Keres variation4434.1%71.6%
C44Scotch gambit, Benima defence4734.0%55.3%
E81King's Indian, Saemisch, 5...O-O191434.0%54.9%
E85King's Indian, Saemisch, orthodox variation5034.0%51.0%
E09Catalan, closed, main line20334.0%60.3%
E70King's Indian, accelerated Averbakh system10334.0%55.8%
C20KP, Indian opening5633.9%43.8%
B80Sicilian, Scheveningen, fianchetto variation17133.9%51.5%
B96Sicilian, Najdorf, 7.f4117133.9%51.3%
D55QGD, 6.Nf311833.9%57.6%
E66King's Indian, fianchetto, Yugoslav Panno30133.9%56.8%
E69King's Indian, fianchetto, classical main line41733.8%61.3%
A56Benoni defence55933.8%58.9%
E80King's Indian, Saemisch variation29633.8%57.8%
A36English, symmetrical, Botvinnik system15133.8%52.0%
D72Neo-Gruenfeld, 5.cd, main line16933.7%60.1%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6559233.7%51.4%
A25English, Sicilian reversed66633.6%52.0%
B04Alekhine's defence, modern variation22333.6%61.2%
C00French defence47633.6%57.4%
B98Sicilian, Najdorf, 7...Be712233.6%54.5%
A84Dutch defence, Rubinstein variation25333.6%59.1%
C19French, Winawer, advance, poisoned pawn variation239233.5%60.7%
E92King's Indian, Gligoric-Taimanov system138733.5%58.5%
C02French, advance, Paulsen attack168733.5%54.7%
E41Nimzo-Indian, e3, Huebner variation45733.5%50.7%
C10French, Paulsen variation57133.5%58.2%
B89Sicilian, Velimirovic attack70333.4%51.3%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7263233.4%55.6%
E94King's Indian, orthodox, 7...Nbd786033.4%60.8%
E90King's Indian, 5.Nf377433.3%56.8%
B10Caro-Kann, anti-Caro-Kann defence50133.3%60.2%
B06Robatsch defence, Two knights variation30033.3%62.3%
A16English, Anglo-Gruenfeld, Czech defense15633.3%63.5%
A91Dutch defence8433.3%52.4%
C25Vienna, Paulsen variation7233.3%56.9%
A83Dutch, Staunton gambit, Chigorin variation6933.3%52.9%
C67Ruy Lopez, open Berlin defence, 5...Be76633.3%53.0%
B12Caro-Kann, advance, Short variation4833.3%52.1%
C78Ruy Lopez, ...b5 & ...d64233.3%52.4%
C44Scotch gambit4233.3%59.5%
C94Ruy Lopez, closed, Breyer defence4233.3%57.1%
D52QGD, Cambridge Springs defence, 7.cd3633.3%50.0%
D30QGD, Capablanca variation3333.3%56.1%
C44Inverted Hanham2433.3%45.8%
C45Scotch, Horwitz attack2433.3%66.7%
A00Novosibirsk opening2133.3%50.0%
B24Sicilian, closed, Smyslov variation2133.3%54.8%
C88Ruy Lopez, closed, 7...d6, 8.d41833.3%16.7%
D90Gruenfeld, Schlechter variation1833.3%38.9%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1533.3%43.3%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
D63QGD, Orthodox defence, Pillsbury attack1533.3%70.0%
C44Ponziani, Reti variation1233.3%58.3%
C68Ruy Lopez, exchange, Romanovsky variation1233.3%50.0%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1233.3%66.7%
C20KP, Lopez opening1233.3%33.3%
C58Two knights defence, Paoli variation933.3%72.2%
A59Benko gambit, 7.e4633.3%50.0%
A00Grob, spike attack633.3%33.3%
C43Petrov, Urusov gambit633.3%83.3%
C37KGA, Quaade gambit633.3%16.7%
D32QGD, Tarrasch defence, Marshall gambit633.3%50.0%
C58Two knights defence, Kieseritsky variation633.3%66.7%
D55QGD, Neo-orthodox variation633.3%50.0%
A82Dutch, Balogh defence633.3%83.3%
C20KP, Napoleon's opening633.3%50.0%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C01French, exchange, Bogolyubov variation333.3%50.0%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit333.3%50.0%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd333.3%16.7%
C33KGA, Breyer gambit333.3%50.0%
C42Petrov, French attack333.3%83.3%
A46Queen's pawn, Torre attack, Wagner gambit333.3%83.3%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
A00Lasker simul special333.3%50.0%
C50Rousseau gambit333.3%50.0%
B03Alekhine's defence, four pawns attack, Planinc variation333.3%50.0%
C37KGA, Cochrane gambit333.3%50.0%
C61Ruy Lopez, Bird's defence, Paulsen variation333.3%50.0%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C64Ruy Lopez, classical defence, Charousek variation333.3%83.3%
E70King's Indian, 4.e483533.3%58.7%
B76Sicilian, dragon, Yugoslav attack, Rauser variation88433.3%64.8%
B00KP, Nimzovich defence41533.3%61.2%
C02French, advance, Steinitz variation34033.2%53.1%
C96Ruy Lopez, closed (10...c5)61433.2%64.0%
A10English, Anglo-Dutch defense61133.2%52.9%
B00Owen defence26933.1%61.5%
A21English opening130633.1%54.5%
A80Dutch, 2.Bg5 variation77133.1%54.0%
A58Benko gambit accepted63233.1%58.9%
C11French, Steinitz, Gledhill attack11233.0%54.9%
B77Sicilian, dragon, Yugoslav attack, 9.Bc410333.0%49.5%
B97Sicilian, Najdorf, 7...Qb6143833.0%46.2%
E91King's Indian, 6.Be255632.9%64.3%
B26Sicilian, closed, 6.Be355632.9%49.6%
D07QGD, Chigorin defence, Janowski variation7932.9%63.3%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)385732.9%56.2%
D15QGD Slav, Suechting variation12832.8%57.8%
C86Ruy Lopez, Worrall attack, solid line6432.8%46.1%
D16QGD Slav, Smyslov variation6432.8%58.6%
A42Modern defence, Averbakh system35432.8%58.5%
B01Scandinavian defence, Lasker variation11332.7%65.0%
C02French, advance variation107232.7%55.8%
E92King's Indian, Petrosian system, Stein variation52332.7%53.3%
C58Two knights defence, Bogolyubov variation4932.7%49.0%
D60QGD, Orthodox defence8932.6%55.6%
A09Reti accepted, Keres variation4032.5%68.8%
C27Boden-Kieseritsky gambit4032.5%31.3%
B07Pirc, Byrne variation31732.5%57.3%
E73King's Indian, Averbakh system85332.5%54.7%
B05Alekhine's defence, modern variation, 4...Bg456332.3%65.2%
E88King's Indian, Saemisch, orthodox, 7.d5 c629732.3%57.9%
D60QGD, Orthodox defence, Botvinnik variation6532.3%50.0%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation53032.3%60.7%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation15532.3%56.8%
C00French, Labourdonnais variation21432.2%45.6%
A16English, Anglo-Gruenfeld, Smyslov defense15232.2%54.9%
B15Caro-Kann defence21132.2%51.7%
B32Sicilian, Flohr variation20532.2%61.0%
D86Gruenfeld, exchange, Simagin's lesser variation2832.1%55.4%
C67Ruy Lopez, Berlin defence, Winawer attack2832.1%69.6%
E89King's Indian, Saemisch, orthodox main line2832.1%62.5%
C69Ruy Lopez, exchange, Bronstein variation43932.1%50.0%
B82Sicilian, Scheveningen, 6.f443932.1%57.3%
B80Sicilian, Scheveningen, English variation13732.1%51.8%
C18French, Winawer, classical variation26832.1%58.2%
B09Pirc, Austrian attack, 6.Be326532.1%58.3%
E77King's Indian, Four pawns attack10332.0%57.8%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf67532.0%61.3%
D97Gruenfeld, Russian variation with e42532.0%60.0%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation24732.0%58.9%
C02French, advance, Nimzovich system9431.9%44.7%
D30QGD Slav, Semmering variation2231.8%47.7%
A01Nimzovich-Larsen attack, Indian variation23931.8%50.2%
C53Giuoco Piano, Bird's attack12931.8%49.2%
B03Alekhine's defence, four pawns attack, fianchetto variation10731.8%57.9%
C05French, Tarrasch, closed variation91431.7%60.1%
C00French, Chigorin variation69231.6%50.8%
B03Alekhine's defence7931.6%63.9%
C98Ruy Lopez, closed, Chigorin, 12...Nc613631.6%61.4%
A61Benoni defence45931.6%62.9%
A41Old Indian defence62731.6%54.4%
C40Latvian counter-gambit7631.6%61.8%
D52QGD, Cambridge Springs defence, Argentine variation1931.6%42.1%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
B03Alekhine's defence, four pawns attack22531.6%65.6%
C16French, Winawer, Petrosian variation18731.6%54.8%
D10QGD Slav, Winawer counter-gambit13031.5%53.5%
A53Old Indian, Janowski variation10831.5%56.5%
E82King's Indian, Saemisch, double fianchetto variation8931.5%58.4%
E00Neo-Indian (Seirawan) attack15931.4%52.8%
E60Queen's pawn, Mengarini attack3531.4%61.4%
A44Semi-Benoni (`blockade variation')8631.4%62.2%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be79931.3%58.1%
B16Caro-Kann, Bronstein-Larsen variation43831.3%62.2%
A00Battambang opening1631.3%46.9%
C44Ponziani, Romanishin variation1631.3%46.9%
B27Sicilian defence1631.3%53.1%
C55Two knights, Max Lange attack1631.3%59.4%
B00Reversed Grob (Borg/Basman defence/macho Grob)1631.3%84.4%
C13French, Albin-Alekhine-Chatard attack23131.2%53.7%
B62Sicilian, Richter-Rauzer, Keres variation6131.1%51.6%
D33QGD, Tarrasch, Prague variation6131.1%53.3%
B06Robatsch defence, three pawns attack13531.1%63.7%
C30KGD, classical, 4.c32931.0%60.3%
A00Clemenz (Mead's, Basman's or de Klerk's) opening2931.0%43.1%
C97Ruy Lopez, closed, Chigorin defence72931.0%63.0%
E31Nimzo-Indian, Leningrad, main line18431.0%51.4%
C17French, Winawer, advance, 5.a333931.0%63.3%
B80Sicilian, Scheveningen variation118630.9%54.4%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence14930.9%59.1%
C74Ruy Lopez, Siesta, Kopayev variation10730.8%53.7%
D44QGD semi-Slav, anti-Meran, Lilienthal variation15930.8%66.4%
B60Sicilian, Richter-Rauzer, Larsen variation13030.8%60.8%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation2630.8%50.0%
A01Nimzovich-Larsen attack, Dutch variation1330.8%46.2%
B00KP, Nimzovich defence, Bogolyubov variation8830.7%58.5%
B71Sicilian, dragon, Levenfish variation3630.6%56.9%
A21English, Smyslov defence3630.6%59.7%
E46Nimzo-Indian, 4.e3 O-O5930.5%57.6%
C19French, Winawer, advance, positional main line99430.4%57.4%
A00Mieses opening11930.3%52.9%
C92Ruy Lopez, closed, Kholmov variation11930.3%66.4%
C29Vienna gambit, Breyer variation8630.2%55.8%
C05French, Tarrasch, Botvinnik variation4330.2%64.0%
A45Blackmar-Diemer gambit15930.2%48.4%
C34KGA, Fischer defence11630.2%44.4%
D25QGA, Flohr variation6330.2%65.9%
A13English, Kurajica defence6330.2%59.5%
A21English, Troeger defence12030.0%53.3%
C39KGA, Kieseritsky, Berlin defence, 6.Bc44030.0%35.0%
C53Giuoco Piano, close variation2030.0%75.0%
B79Sicilian, dragon, Yugoslav attack, 12.h41030.0%65.0%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
A21English, Keres variation1030.0%45.0%
A92Dutch, stonewall with Nc31030.0%45.0%
C40Greco defence1030.0%45.0%
E36Nimzo-Indian, classical, Botvinnik variation1030.0%65.0%
A45Queen's pawn, Bronstein gambit1030.0%55.0%
D50QGD, Semi-Tarrasch1030.0%45.0%
B98Sicilian, Najdorf variation32730.0%57.8%
B75Sicilian, dragon, Yugoslav attack23730.0%57.2%
A04Reti, Pirc-Lisitsin gambit12129.8%49.6%
D15QGD Slav, 5.e3 (Alekhine variation)14829.7%54.7%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)3729.7%50.0%
C59Two knights defence, Steinitz variation31329.7%47.4%
E92King's Indian, Petrosian system8129.6%50.6%
E70King's Indian, Kramer system31429.6%57.8%
B20Sicilian, wing gambit, Marshall variation6129.5%55.7%
A93Dutch, stonewall, Botwinnik variation8529.4%59.4%
A98Dutch, Ilyin-Genevsky variation with Qc23429.4%52.9%
C20Alapin's opening1729.4%67.6%
E99King's Indian, orthodox, Aronin-Taimanov, main line1729.4%61.8%
C12French, MacCutcheon, Bernstein variation1729.4%61.8%
C34KGA, Schallop defence1729.4%73.5%
D83Gruenfeld, Gruenfeld gambit1729.4%67.6%
C33KGA, bishop's gambit, Morphy variation1729.4%61.8%
A95Dutch, stonewall with Nc320529.3%58.5%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation52429.2%62.7%
B99Sicilian, Najdorf, 7...Be7 main line56929.2%53.4%
A00Saragossa opening28629.0%49.8%
C04French, Tarrasch, Guimard main line30729.0%59.4%
A81Dutch defence, Blackburne variation4528.9%52.2%
A79Benoni, classical, 11.f35228.8%58.7%
D15QGD Slav, Tolush-Geller gambit11828.8%40.7%
A71Benoni, classical, 8.Bg58728.7%54.6%
A03Bird's opening, Lasker variation8428.6%42.9%
A17English, Queens Indian, Romanishin variation5628.6%58.9%
B98Sicilian, Najdorf, Browne variation4228.6%61.9%
E17Queen's Indian, 5.Bg2 Be72828.6%39.3%
D21QGA, Alekhine defense, Borisenko-Furman variation2128.6%52.4%
E26Nimzo-Indian, Saemisch, O'Kelly variation2128.6%57.1%
C67Ruy Lopez, open Berlin defence, Showalter variation1428.6%42.9%
C46Three knights, Schlechter variation1428.6%42.9%
C12French, MacCutcheon, advance variation1428.6%21.4%
A54Old Indian, Dus-Khotimirsky variation728.6%42.9%
E08Catalan, closed, Spassky gambit728.6%57.1%
B01Scandinavian, Kiel variation728.6%85.7%
C33KGA, bishop's gambit, Bogolyubov variation728.6%28.6%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O29628.4%55.4%
A61Benoni, Nimzovich (knight's tour) variation34228.4%59.2%
C40Gunderam defence6728.4%70.9%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c632828.4%53.5%
E30Nimzo-Indian, Leningrad, ...b5 gambit5328.3%46.2%
A25English, closed system (without ...d6)11728.2%55.1%
A56Czech Benoni defence26927.9%68.2%
E40Nimzo-Indian, 4.e312227.9%57.4%
E83King's Indian, Saemisch, 6...Nc65427.8%47.2%
C51Evans gambit, Paulsen variation1827.8%69.4%
C35KGA, Cunningham, Euwe defence1827.8%58.3%
C12French, MacCutcheon, Lasker variation20327.6%59.1%
E87King's Indian, Saemisch, orthodox, 7.d524327.6%59.5%
C30KGD, classical variation4427.3%59.1%
C60Ruy Lopez, Cozio defence, Paulsen variation3327.3%68.2%
C40Latvian, Polerio variation2227.3%40.9%
C20KP, Patzer opening2227.3%31.8%
D99Gruenfeld defence, Smyslov, Yugoslav variation1127.3%50.0%
C13French, classical, Anderssen variation1127.3%40.9%
C19French, Winawer, advance, Smyslov variation14727.2%61.2%
C57Two knights defence, Fegatello attack5927.1%54.2%
A73Benoni, classical, 9.O-O4827.1%57.3%
C42Petrov, Italian variation6327.0%50.0%
C30KGD, 2...Nf62626.9%59.6%
C24Bishop's opening, Urusov gambit4126.8%37.8%
C18French, Winawer, advance variation42526.8%63.1%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne183926.8%61.1%
A52Budapest, Alekhine, Abonyi variation5626.8%61.6%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc1526.7%73.3%
B22Sicilian, 2.c3, Heidenfeld variation5726.3%44.7%
C70Ruy Lopez, Schliemann defence deferred1926.3%71.1%
E75King's Indian, Averbakh, main line4626.1%58.7%
A65Benoni, 6.e429325.9%56.0%
C25Vienna gambit2725.9%53.7%
C60Ruy Lopez (Spanish opening)2725.9%64.8%
A51Budapest, Fajarowicz variation3525.7%61.4%
A75Benoni, classical with ...a6 and 10...Bg44725.5%72.3%
A77Benoni, classical, 9...Re8, 10.Nd211825.4%67.8%
E28Nimzo-Indian, Saemisch variation9125.3%52.2%
A60Benoni defence10725.2%64.0%
D49QGD semi-Slav, Meran, Rabinovich variation6025.0%44.2%
C03French, Tarrasch, Guimard variation5625.0%66.1%
C12French, MacCutcheon, Dr. Olland (Dutch) variation4825.0%66.7%
B40Sicilian, Pin, Koch variation3625.0%79.2%
A18English, Mikenas-Carls, Kevitz variation2025.0%47.5%
C52Evans gambit, compromised defence, Paulsen variation1625.0%62.5%
D15QGD Slav, Slav gambit1625.0%56.3%
B03Alekhine's defence, four pawns attack, 6...Nc61225.0%45.8%
C55Two knights, Max Lange attack, Marshall variation825.0%62.5%
B03Alekhine's defence, Balogh variation825.0%75.0%
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%
C57Two knights defence, Fegatello attack, Leonhardt variation825.0%50.0%
C13French, classical, Anderssen-Richter variation825.0%50.0%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D53QGD, Lasker variation425.0%87.5%
C43Petrov, modern attack, Bardeleben variation425.0%62.5%
A00Global opening425.0%62.5%
A00Ware (Meadow Hay) opening425.0%62.5%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit425.0%62.5%
C57Two knights defence, Fritz, Gruber variation425.0%37.5%
C14French, classical variation425.0%12.5%
C12French, MacCutcheon, Duras variation425.0%62.5%
D08QGD, Albin counter-gambit, Balogh variation425.0%87.5%
C59Two knights defence, Goering variation425.0%12.5%
A00Grob, Romford counter-gambit425.0%62.5%
D08QGD, Albin counter-gambit, Janowski variation425.0%62.5%
A70Benoni, classical without 9.O-O425.0%37.5%
A06Reti, old Indian attack8924.7%48.3%
A67Benoni, Taimanov variation19924.6%62.6%
B72Sicilian, dragon, classical, Amsterdam variation4124.4%48.8%
A42Modern defence, Averbakh system, Kotov variation10324.3%64.6%
A56Benoni defence, Hromodka system37223.9%65.7%
B50Sicilian, wing gambit deferred2123.8%35.7%
D01Richter-Veresov attack, Richter variation1723.5%52.9%
C58Two knights defence, Colman variation1723.5%35.3%
A66Benoni, Mikenas variation1723.5%47.1%
C39KGA, Kieseritsky, Rice gambit1723.5%29.4%
C41Philidor, Hanham, Schlechter variation1723.5%76.5%
C41Philidor, Larsen variation3023.3%65.0%
D00Blackmar-Diemer, Euwe defence2623.1%42.3%
A52Budapest, Alekhine variation1323.1%65.4%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack5322.6%66.0%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3122.6%56.5%
A61Benoni, Uhlmann variation19222.4%39.3%
D33QGD, Tarrasch, Wagner variation922.2%66.7%
C52Evans gambit, compromised defence4221.4%72.6%
B53Sicilian, Chekhover, Zaitsev variation4221.4%58.3%
E03Catalan, open, Alekhine variation1421.4%39.3%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation1421.4%46.4%
A40Beefeater defence3321.2%68.2%
A28English, Bradley Beach variation5221.2%37.5%
C51Evans gambit, normal variation1921.1%47.4%
D44QGD semi-Slav, anti-Meran, Szabo variation2420.8%35.4%
E12Queen's Indian, 4.Nc3, Botvinnik variation3520.0%47.1%
D00Blackmar-Diemer gambit3020.0%40.0%
B18Caro-Kann, classical, Maroczy attack1020.0%40.0%
C80Ruy Lopez, open, Friess attack1020.0%60.0%
C31KGD, Falkbeer, Rubinstein variation520.0%70.0%
B12de Bruycker defence520.0%70.0%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
C00Lengfellner system520.0%90.0%
A97Dutch, Ilyin-Genevsky variation2218.2%54.5%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1118.2%54.5%
C40Latvian, Fraser defence1118.2%54.5%
C42Petrov, Cochrane gambit6118.0%32.0%
C06French, Tarrasch, Leningrad variation1717.6%85.3%
A43Old Benoni, Schmid's system2317.4%56.5%
A04Reti, Lisitsin gambit deferred1816.7%75.0%
C51Evans gambit declined1816.7%58.3%
A82Dutch, Staunton gambit, Tartakower variation616.7%41.7%
C52Evans gambit, Levenfish variation616.7%25.0%
C32KGD, Falkbeer, main line, 7...Bf5616.7%91.7%
C52Evans gambit, Lasker defence616.7%25.0%
C47Four knights, Scotch variation1315.4%61.5%
A61Benoni, fianchetto variation1414.3%78.6%
C14French, classical, Pollock variation714.3%35.7%
B02Alekhine's defence, Kmoch variation714.3%21.4%
B02Alekhine's defence, Brooklyn defence714.3%35.7%
C21Danish gambit, Schlechter defence714.3%50.0%
C33KGA, bishop's gambit, Bledow variation2412.5%31.3%
C57Two knights defence812.5%31.3%
E72King's Indian, Pomar system812.5%56.3%
A56Czech Benoni, King's Indian system3611.1%66.7%
C53Giuoco Piano, LaBourdonnais variation911.1%61.1%
B15Caro-Kann, Rasa-Studier gambit911.1%38.9%
E60King's Indian, 3.g3, counterthrust variation911.1%27.8%
B05Alekhine's defence, modern, Panov variation911.1%50.0%
C00French, Steinitz attack911.1%27.8%
A25English, closed, Taimanov variation2010.0%65.0%
C38KGA, Philidor gambit128.3%29.2%
C30KGD, Norwalde variation147.1%82.1%
D48QGD semi-Slav, Meran205.0%37.5%
A42Modern defence, Averbakh system, Randspringer variation90.0%77.8%
C13French, classical, Vistaneckis (Nimzovich) variation90.0%66.7%
C14French, classical, Tarrasch variation70.0%57.1%
C52Evans gambit, Waller attack60.0%100.0%
E79King's Indian, Four pawns attack, main line60.0%66.7%
C82Ruy Lopez, open, 9.c350.0%80.0%
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
C78Ruy Lopez, Wing attack40.0%50.0%
D21QGA, Ericson variation40.0%25.0%
D51QGD, Alekhine variation40.0%50.0%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
C37KGA, Salvio gambit, Anderssen counter-attack40.0%50.0%
A00Anti-Borg (Desprez) opening30.0%33.3%
C58Two knights defence, Blackburne variation30.0%66.7%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
E37Nimzo-Indian, classical, San Remo variation30.0%66.7%
C57Two knights defence, Fegatello attack, Polerio defence30.0%100.0%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
A59Benko gambit, Ne2 variation30.0%33.3%
D86Gruenfeld, exchange, Larsen variation30.0%66.7%
C51Evans gambit declined, Lange variation20.0%0.0%
B10Caro-Kann, Hillbilly attack20.0%50.0%
C44Dresden opening20.0%0.0%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
A04Reti, Wade defence20.0%50.0%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
A10English, Jaenisch gambit20.0%100.0%
C41Philidor, Steinitz variation20.0%0.0%
D50QGD, Canal (Venice) variation20.0%50.0%
C45Scotch, Pulling counter-attack20.0%50.0%
A25English, closed, 5.Rb1 Taimanov variation20.0%50.0%
C55Giuoco piano20.0%50.0%
C48Four knights, Marshall variation20.0%0.0%
C41Philidor, Lopez counter-gambit20.0%50.0%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C23Bishop's opening, Lopez gambit20.0%0.0%
C15French, Winawer, Alekhine gambit20.0%50.0%
B00KP, Colorado counter20.0%50.0%
A83Dutch, Staunton gambit, Nimzovich variation20.0%0.0%
C40King's knight opening20.0%50.0%
C51Evans gambit, Fraser attack20.0%100.0%
C52Evans gambit, Sanders-Alapin variation20.0%100.0%
A04Reti, Herrstroem gambit20.0%100.0%
E14Queen's Indian, Averbakh variation20.0%50.0%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C60Ruy Lopez, Lucena defence20.0%50.0%
C51Evans gambit, Goering attack10.0%100.0%
D08QGD, Albin counter-gambit, Lasker trap10.0%100.0%
A02Bird, From gambit, Lipke variation10.0%0.0%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C25Vienna, Steinitz gambit10.0%0.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation10.0%100.0%
C32KGD, Falkbeer, Keres variation10.0%100.0%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
D26QGA, classical, Furman variation10.0%0.0%
C44Scotch gambit, Hanneken variation10.0%100.0%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
B40Sicilian, Marshall variation10.0%100.0%
D80Gruenfeld, Lundin variation10.0%0.0%
A00Amsterdam attack10.0%100.0%
C49Four knights, Svenonius variation10.0%100.0%
C33KGA, bishop's gambit, classical defence10.0%0.0%
C55Two knights, Max Lange attack, Loman defence10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
C33King's gambit accepted10.0%0.0%
C30KGD, classical counter-gambit10.0%0.0%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
A00Amar gambit10.0%0.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Kieseritsky, Brentano defence10.0%100.0%
C45Scotch, Paulsen attack10.0%100.0%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation10.0%100.0%
B62Sicilian, Richter-Rauzer, Richter attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C27Vienna, `Frankenstein-Dracula' variation10.0%100.0%
C33KGA, Carrera (Basman) gambit10.0%100.0%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%

Created in 2005-2013 by CCRL team
Last games added on November 18, 2017