CCRL 40/40
Downloads and Statistics
April 11, 2008
|
Testing summary:
Total: 114'872 gamesplayed by 449 programs 16375 CPU days (X2 4600+) White wins: 41'478 (36.1%) Black wins: 31'357 (27.3%) Draws: 42'037 (36.6%) White score: 54.4% |
CCRL 40/40
Downloads and Statistics
April 11, 2008
|
Testing summary:
Total: 114'872 gamesplayed by 449 programs 16375 CPU days (X2 4600+) White wins: 41'478 (36.1%) Black wins: 31'357 (27.3%) Draws: 42'037 (36.6%) White score: 54.4% |
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.
| ECO | Opening | Number of games | Draws | White score | Commented PGN |
| E25 | Nimzo-Indian, Saemisch variation | 5 | 100.0% | 50.0% | 0.00 MB |
| C49 | Four knights, Nimzovich (Paulsen) variation | 4 | 100.0% | 50.0% | 0.00 MB |
| C70 | Ruy Lopez, Graz variation | 4 | 100.0% | 50.0% | 0.00 MB |
| A44 | Old Benoni defence | 4 | 100.0% | 50.0% | 0.00 MB |
| A94 | Dutch, stonewall with Ba3 | 3 | 100.0% | 50.0% | 0.00 MB |
| C80 | Ruy Lopez, open, Riga variation | 3 | 100.0% | 50.0% | 0.00 MB |
| C53 | Giuoco Piano, centre-holding variation | 2 | 100.0% | 50.0% | 0.00 MB |
| C31 | KGD, Nimzovich counter-gambit | 2 | 100.0% | 50.0% | 0.00 MB |
| C41 | Philidor, Hanham, Delmar variation | 2 | 100.0% | 50.0% | 0.00 MB |
| E15 | Queen's Indian, Buerger variation | 2 | 100.0% | 50.0% | 0.00 MB |
| B07 | Pirc, Holmov system | 2 | 100.0% | 50.0% | 0.00 MB |
| D34 | QGD, Tarrasch, Reti variation | 2 | 100.0% | 50.0% | 0.00 MB |
| B07 | Pirc, bayonet (Mariotti) attack | 2 | 100.0% | 50.0% | 0.00 MB |
| C00 | French, Alapin variation | 2 | 100.0% | 50.0% | 0.00 MB |
| C45 | Scotch, Ghulam Kassim variation | 2 | 100.0% | 50.0% | 0.00 MB |
| C80 | Ruy Lopez, open, Berger variation | 2 | 100.0% | 50.0% | 0.00 MB |
| A00 | Clemenz (Mead's, Basman's or de Klerk's) opening | 2 | 100.0% | 50.0% | 0.00 MB |
| D32 | QGD, Tarrasch defence, 4.cd ed | 2 | 100.0% | 50.0% | 0.00 MB |
| E77 | King's Indian, Four pawns attack, Florentine gambit | 1 | 100.0% | 50.0% | 0.00 MB |
| C27 | Boden-Kieseritsky gambit, Lichtenhein defence | 1 | 100.0% | 50.0% | 0.00 MB |
| C40 | Latvian, Fraser defence | 1 | 100.0% | 50.0% | 0.00 MB |
| C45 | Scotch, Meitner variation | 1 | 100.0% | 50.0% | 0.00 MB |
| D51 | QGD | 1 | 100.0% | 50.0% | 0.00 MB |
| C43 | Petrov, modern attack, Steinitz variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C33 | KGA, bishop's gambit | 1 | 100.0% | 50.0% | 0.00 MB |
| B06 | Robatsch defence, three pawns attack | 1 | 100.0% | 50.0% | 0.00 MB |
| C89 | Ruy Lopez, Marshall, Kevitz variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C56 | Two knights defence, Canal variation | 1 | 100.0% | 50.0% | 0.00 MB |
| E23 | Nimzo-Indian, Spielmann, Karlsbad variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C37 | KGA, Muzio gambit, Brentano defence | 1 | 100.0% | 50.0% | 0.00 MB |
| C48 | Four knights, Ranken variation | 1 | 100.0% | 50.0% | 0.00 MB |
| A00 | Mieses opening | 1 | 100.0% | 50.0% | 0.00 MB |
| B72 | Sicilian, dragon, classical, Grigoriev variation | 1 | 100.0% | 50.0% | 0.00 MB |
| A40 | Queen's pawn, Charlick (Englund) gambit | 1 | 100.0% | 50.0% | 0.00 MB |
| C14 | French, classical variation | 1 | 100.0% | 50.0% | 0.00 MB |
| E87 | King's Indian, Saemisch, orthodox, Bronstein variation | 1 | 100.0% | 50.0% | 0.00 MB |
| D94 | Gruenfeld with e3 Bd3 | 1 | 100.0% | 50.0% | 0.00 MB |
| C44 | Scotch gambit, Benima defence | 1 | 100.0% | 50.0% | 0.00 MB |
| A38 | English, symmetrical, main line with b3 | 1 | 100.0% | 50.0% | 0.00 MB |
| E25 | Nimzo-Indian, Saemisch, Romanovsky variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C48 | Four knights, Bardeleben variation | 1 | 100.0% | 50.0% | 0.00 MB |
| D83 | Gruenfeld, Gruenfeld gambit, Botvinnik variation | 1 | 100.0% | 50.0% | 0.00 MB |
| B31 | Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C41 | Philidor, Philidor counter-gambit | 1 | 100.0% | 50.0% | 0.00 MB |
| B03 | Alekhine's defence, exchange, Karpov variation | 1 | 100.0% | 50.0% | 0.00 MB |
| A98 | Dutch, Ilyin-Genevsky variation with Qc2 | 1 | 100.0% | 50.0% | 0.00 MB |
| A92 | Dutch, stonewall variation | 1 | 100.0% | 50.0% | 0.00 MB |
| A82 | Dutch, Staunton gambit, Tartakower variation | 1 | 100.0% | 50.0% | 0.00 MB |
| A59 | Benko gambit, 7.e4 | 1 | 100.0% | 50.0% | 0.00 MB |
| C53 | Giuoco Piano, Mestel variation | 1 | 100.0% | 50.0% | 0.00 MB |
| B64 | Sicilian, Richter-Rauzer, Rauzer attack, Geller variation | 1 | 100.0% | 50.0% | 0.00 MB |
| E72 | King's Indian, Pomar system | 1 | 100.0% | 50.0% | 0.00 MB |
| A83 | Dutch, Staunton gambit, Staunton's line | 1 | 100.0% | 50.0% | 0.00 MB |
| B05 | Alekhine's defence, modern, Alekhine variation | 1 | 100.0% | 50.0% | 0.00 MB |
| D22 | QGA, Alekhine defence, Alatortsev variation | 1 | 100.0% | 50.0% | 0.00 MB |
| A00 | Novosibirsk opening | 1 | 100.0% | 50.0% | 0.00 MB |
| C79 | Ruy Lopez, Steinitz defence deferred, Rubinstein variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C11 | French, Steinitz, Gledhill attack | 1 | 100.0% | 50.0% | 0.00 MB |
| A56 | Vulture defence | 1 | 100.0% | 50.0% | 0.00 MB |
| A80 | Dutch, Manhattan (Alapin, Ulvestad) variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C30 | KGD, classical, Reti variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C25 | Vienna, Pierce gambit | 1 | 100.0% | 50.0% | 0.00 MB |
| C80 | Ruy Lopez, open, Schlechter defence | 1 | 100.0% | 50.0% | 0.00 MB |
| C12 | French, MacCutcheon, Grigoriev variation | 1 | 100.0% | 50.0% | 0.00 MB |
| D41 | QGD, Semi-Tarrasch, Kmoch variation | 1 | 100.0% | 50.0% | 0.00 MB |
| D52 | QGD, Cambridge Springs defence, Argentine variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C34 | King's knight's gambit | 1 | 100.0% | 50.0% | 0.00 MB |
| C42 | Petrov, French attack | 1 | 100.0% | 50.0% | 0.00 MB |
| E10 | Dzindzikhashvili defence | 8 | 87.5% | 56.3% | 0.01 MB |
| A13 | English, Romanishin gambit | 7 | 85.7% | 57.1% | 0.01 MB |
| C48 | Four knights, Rubinstein counter-gambit, exchange variation | 11 | 81.8% | 59.1% | 0.01 MB |
| A40 | Polish defence | 5 | 80.0% | 60.0% | 0.01 MB |
| E73 | King's Indian, 5.Be2 | 5 | 80.0% | 60.0% | 0.00 MB |
| D00 | Blackmar gambit | 5 | 80.0% | 40.0% | 0.01 MB |
| D89 | Gruenfeld, Spassky variation, main line, 13.Bd3 | 12 | 75.0% | 54.2% | 0.01 MB |
| A84 | Dutch, Staunton gambit deferred | 8 | 75.0% | 37.5% | 0.01 MB |
| D94 | Gruenfeld, Makogonov variation | 8 | 75.0% | 37.5% | 0.01 MB |
| C02 | French, advance, Milner-Barry gambit | 8 | 75.0% | 62.5% | 0.01 MB |
| C51 | Evans gambit, Cordel variation | 4 | 75.0% | 37.5% | 0.00 MB |
| B27 | Sicilian, Katalimov variation | 4 | 75.0% | 37.5% | 0.00 MB |
| C80 | Ruy Lopez, open, 6.d4 | 4 | 75.0% | 62.5% | 0.00 MB |
| C57 | Two knights defence, Ulvestad variation | 4 | 75.0% | 62.5% | 0.00 MB |
| D26 | QGA, classical, Steinitz variation | 4 | 75.0% | 62.5% | 0.00 MB |
| E81 | King's Indian, Saemisch, Byrne variation | 4 | 75.0% | 62.5% | 0.00 MB |
| C39 | KGA, Kieseritsky, Kolisch defence | 4 | 75.0% | 62.5% | 0.00 MB |
| D24 | QGA, Bogolyubov variation | 4 | 75.0% | 37.5% | 0.00 MB |
| C83 | Ruy Lopez, open, Malkin variation | 4 | 75.0% | 62.5% | 0.00 MB |
| C55 | Two knights defence, Perreux variation | 4 | 75.0% | 62.5% | 0.00 MB |
| E83 | King's Indian, Saemisch, 6...Nc6 | 4 | 75.0% | 62.5% | 0.00 MB |
| C23 | Bishop's opening, Philidor variation | 4 | 75.0% | 37.5% | 0.00 MB |
| C00 | St. George defence | 4 | 75.0% | 62.5% | 0.00 MB |
| E51 | Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d5 | 11 | 72.7% | 45.5% | 0.01 MB |
| B62 | Sicilian, Richter-Rauzer, Podvebrady variation | 10 | 70.0% | 45.0% | 0.01 MB |
| D69 | QGD, Orthodox defence, classical, 13.de | 15 | 66.7% | 40.0% | 0.01 MB |
| C48 | Four knights, Spanish variation | 12 | 66.7% | 50.0% | 0.01 MB |
| C86 | Ruy Lopez, Worrall attack | 6 | 66.7% | 50.0% | 0.01 MB |
| C68 | Ruy Lopez, exchange, Keres variation | 6 | 66.7% | 33.3% | 0.00 MB |
| D81 | Gruenfeld, Russian variation | 6 | 66.7% | 66.7% | 0.01 MB |
| D25 | QGA, Smyslov variation | 6 | 66.7% | 66.7% | 0.01 MB |
| B72 | Sicilian, dragon, classical attack | 6 | 66.7% | 50.0% | 0.01 MB |
| B03 | Alekhine's defence, O'Sullivan gambit | 3 | 66.7% | 66.7% | 0.00 MB |
| A17 | English, Queens Indian, Romanishin variation | 3 | 66.7% | 33.3% | 0.00 MB |
| C25 | Vienna, Paulsen variation | 3 | 66.7% | 66.7% | 0.00 MB |
| D22 | QGA, Haberditz variation | 3 | 66.7% | 33.3% | 0.00 MB |
| D01 | Richter-Veresov attack, Richter variation | 3 | 66.7% | 66.7% | 0.00 MB |
| C92 | Ruy Lopez, closed, Keres (9...a5) variation | 3 | 66.7% | 33.3% | 0.00 MB |
| E51 | Nimzo-Indian, 4.e3, Ragozin variation | 3 | 66.7% | 66.7% | 0.00 MB |
| C82 | Ruy Lopez, open, Motzko attack | 3 | 66.7% | 66.7% | 0.00 MB |
| B72 | Sicilian, dragon, classical, Amsterdam variation | 3 | 66.7% | 33.3% | 0.00 MB |
| D23 | Queen's gambit accepted | 3 | 66.7% | 33.3% | 0.00 MB |
| E54 | Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation | 3 | 66.7% | 66.7% | 0.00 MB |
| D31 | QGD, Janowski variation | 3 | 66.7% | 33.3% | 0.00 MB |
| A12 | English, New York (London) defensive system | 3 | 66.7% | 33.3% | 0.00 MB |
| C41 | Philidor, Hanham variation | 3 | 66.7% | 66.7% | 0.01 MB |
| C15 | French, Winawer, Alekhine gambit, Kan variation | 17 | 64.7% | 50.0% | 0.02 MB |
| C23 | Bishop's opening, Philidor counter-attack | 28 | 64.3% | 64.3% | 0.02 MB |
| A87 | Dutch, Leningrad, main variation | 16 | 62.5% | 62.5% | 0.02 MB |
| A12 | English, Caro-Kann defensive system | 8 | 62.5% | 56.3% | 0.01 MB |
| D00 | Queen's pawn, Mason variation, Steinitz counter-gambit | 8 | 62.5% | 68.8% | 0.01 MB |
| C86 | Ruy Lopez, Worrall attack, solid line | 8 | 62.5% | 43.8% | 0.01 MB |
| C79 | Ruy Lopez, Steinitz defence deferred, Lipnitsky variation | 8 | 62.5% | 56.3% | 0.01 MB |
| A00 | Saragossa opening | 8 | 62.5% | 68.8% | 0.01 MB |
| C45 | Scotch, Schmidt variation | 118 | 61.9% | 43.6% | 0.08 MB |
| E92 | King's Indian, Andersson variation | 23 | 60.9% | 52.2% | 0.02 MB |
| C66 | Ruy Lopez, closed Berlin defence, Wolf variation | 30 | 60.0% | 60.0% | 0.02 MB |
| A54 | Old Indian, Ukrainian variation | 10 | 60.0% | 70.0% | 0.01 MB |
| B04 | Alekhine's defence, modern, Keres variation | 10 | 60.0% | 60.0% | 0.01 MB |
| B37 | Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg7 | 10 | 60.0% | 50.0% | 0.01 MB |
| B02 | Alekhine's defence, Saemisch attack | 5 | 60.0% | 50.0% | 0.00 MB |
| A99 | Dutch, Ilyin-Genevsky variation with b3 | 5 | 60.0% | 70.0% | 0.01 MB |
| E57 | Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd | 5 | 60.0% | 30.0% | 0.00 MB |
| B09 | Pirc, Austrian attack, 6.e5 | 5 | 60.0% | 50.0% | 0.01 MB |
| C95 | Ruy Lopez, closed, Breyer, Simagin variation | 5 | 60.0% | 70.0% | 0.00 MB |
| A16 | English, Anglo-Gruenfeld, Smyslov defense | 5 | 60.0% | 70.0% | 0.00 MB |
| C90 | Ruy Lopez, closed, Lutikov variation | 5 | 60.0% | 50.0% | 0.01 MB |
| B55 | Sicilian, Prins variation, Venice attack | 5 | 60.0% | 70.0% | 0.01 MB |
| C13 | French, classical | 5 | 60.0% | 30.0% | 0.00 MB |
| C50 | Hungarian defence | 5 | 60.0% | 50.0% | 0.01 MB |
| D51 | QGD, 5...c6 | 5 | 60.0% | 50.0% | 0.01 MB |
| D94 | Gruenfeld, Smyslov defence | 22 | 59.1% | 56.8% | 0.02 MB |
| B90 | Sicilian, Najdorf, Adams attack | 12 | 58.3% | 62.5% | 0.01 MB |
| D64 | QGD, Orthodox defence, Rubinstein attack (with Rc1) | 19 | 57.9% | 55.3% | 0.02 MB |
| D73 | Neo-Gruenfeld, 5.Nf3 | 70 | 57.1% | 54.3% | 0.06 MB |
| D52 | QGD, Cambridge Springs defence, Rubinstein variation | 14 | 57.1% | 42.9% | 0.01 MB |
| D71 | Neo-Gruenfeld, 5.cd | 14 | 57.1% | 50.0% | 0.01 MB |
| E17 | Queen's Indian, 5.Bg2 Be7 | 7 | 57.1% | 42.9% | 0.01 MB |
| C56 | Two knights defence | 7 | 57.1% | 57.1% | 0.01 MB |
| C46 | Four knights, Gunsberg variation | 7 | 57.1% | 42.9% | 0.01 MB |
| A97 | Dutch, Ilyin-Genevsky, Winter variation | 7 | 57.1% | 57.1% | 0.01 MB |
| B96 | Sicilian, Najdorf, Polugayevsky variation | 7 | 57.1% | 28.6% | 0.01 MB |
| E33 | Nimzo-Indian, classical, 4...Nc6 | 7 | 57.1% | 42.9% | 0.01 MB |
| D30 | QGD Slav | 30 | 56.7% | 58.3% | 0.03 MB |
| D88 | Gruenfeld, Spassky variation, main line, 10...cd, 11.cd | 16 | 56.3% | 59.4% | 0.01 MB |
| C84 | Ruy Lopez, closed, centre attack | 9 | 55.6% | 50.0% | 0.01 MB |
| A69 | Benoni, four pawns attack, main line | 9 | 55.6% | 50.0% | 0.01 MB |
| B19 | Caro-Kann, classical, 7...Nd7 | 9 | 55.6% | 50.0% | 0.01 MB |
| C52 | Evans gambit, compromised defence, Paulsen variation | 9 | 55.6% | 50.0% | 0.01 MB |
| B56 | Sicilian, Venice attack | 20 | 55.0% | 47.5% | 0.01 MB |
| B58 | Sicilian, classical | 22 | 54.5% | 50.0% | 0.02 MB |
| D05 | Queen's pawn game, Rubinstein (Colle-Zukertort) variation | 22 | 54.5% | 50.0% | 0.02 MB |
| B28 | Sicilian, O'Kelly variation | 11 | 54.5% | 63.6% | 0.01 MB |
| A12 | English, Capablanca's variation | 11 | 54.5% | 36.4% | 0.01 MB |
| D00 | Queen's pawn, Chigorin variation | 11 | 54.5% | 63.6% | 0.01 MB |
| A13 | English, Wimpey system | 11 | 54.5% | 63.6% | 0.01 MB |
| D22 | QGA, Alekhine defence | 13 | 53.8% | 57.7% | 0.01 MB |
| D27 | QGA, classical, Geller variation | 13 | 53.8% | 65.4% | 0.01 MB |
| A12 | English, Torre defensive system | 13 | 53.8% | 50.0% | 0.01 MB |
| A14 | English, Neo-Catalan declined | 28 | 53.6% | 55.4% | 0.02 MB |
| B52 | Sicilian, Canal-Sokolsky attack, 3...Bd7 | 90 | 53.3% | 54.4% | 0.07 MB |
| E45 | Nimzo-Indian, 4.e3, Bronstein (Byrne) variation | 30 | 53.3% | 60.0% | 0.02 MB |
| B01 | Scandinavian gambit | 15 | 53.3% | 60.0% | 0.02 MB |
| E16 | Queen's Indian, Riumin variation | 15 | 53.3% | 46.7% | 0.01 MB |
| C66 | Ruy Lopez, closed Berlin defence, Showalter variation | 32 | 53.1% | 60.9% | 0.02 MB |
| D68 | QGD, Orthodox defence, classical, 13.d1c2 (Vidmar) | 32 | 53.1% | 57.8% | 0.02 MB |
| C66 | Ruy Lopez, Berlin defence, hedgehog variation | 66 | 53.0% | 61.4% | 0.05 MB |
| D55 | QGD, Neo-orthodox variation, 7.Bh4 | 17 | 52.9% | 61.8% | 0.02 MB |
| D28 | QGA, classical, 7.Qe2 | 17 | 52.9% | 55.9% | 0.01 MB |
| B21 | Sicilian, Smith-Morra gambit | 19 | 52.6% | 57.9% | 0.02 MB |
| D62 | QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein) | 21 | 52.4% | 69.0% | 0.02 MB |
| B01 | Scandinavian, Pytel-Wade variation | 21 | 52.4% | 54.8% | 0.02 MB |
| D26 | QGA, classical variation | 191 | 52.4% | 52.9% | 0.14 MB |
| D00 | Queen's pawn game | 25 | 52.0% | 54.0% | 0.02 MB |
| C09 | French, Tarrasch, open variation, main line | 229 | 52.0% | 57.9% | 0.16 MB |
| B13 | Caro-Kann, Panov-Botvinnik attack | 70 | 51.4% | 48.6% | 0.05 MB |
| A25 | English, closed, 5.Rb1 | 35 | 51.4% | 54.3% | 0.03 MB |
| E25 | Nimzo-Indian, Saemisch, Keres variation | 41 | 51.2% | 47.6% | 0.03 MB |
| D92 | Gruenfeld, 5.Bf4 | 84 | 51.2% | 56.5% | 0.05 MB |
| A14 | English, Symmetrical, Keres defence | 108 | 50.9% | 55.1% | 0.08 MB |
| A28 | English, four knights, Romanishin variation | 81 | 50.6% | 57.4% | 0.06 MB |
| C08 | French, Tarrasch, open, 4.ed ed | 207 | 50.2% | 54.6% | 0.14 MB |
| E47 | Nimzo-Indian, 4.e3 O-O, 5.Bd3 | 44 | 50.0% | 54.5% | 0.03 MB |
| D99 | Gruenfeld defence, Smyslov, main line | 36 | 50.0% | 52.8% | 0.02 MB |
| D32 | QGD, Tarrasch defence | 34 | 50.0% | 57.4% | 0.02 MB |
| E49 | Nimzo-Indian, 4.e3, Botvinnik system | 28 | 50.0% | 67.9% | 0.02 MB |
| B09 | Pirc, Austrian attack, dragon formation | 26 | 50.0% | 67.3% | 0.02 MB |
| D67 | QGD, Orthodox defence, Bd3 line, Alekhine variation | 24 | 50.0% | 58.3% | 0.02 MB |
| B57 | Sicilian, Sozin, not Scheveningen | 22 | 50.0% | 61.4% | 0.02 MB |
| B32 | Sicilian, Labourdonnais-Loewenthal variation | 20 | 50.0% | 65.0% | 0.02 MB |
| D31 | QGD, semi-Slav, Abrahams variation | 18 | 50.0% | 47.2% | 0.02 MB |
| A42 | Pterodactyl defence | 18 | 50.0% | 63.9% | 0.02 MB |
| D41 | QGD, Semi-Tarrasch with e3 | 18 | 50.0% | 52.8% | 0.01 MB |
| A10 | English, Adorjan defence | 16 | 50.0% | 56.3% | 0.01 MB |
| E56 | Nimzo-Indian, 4.e3, main line with 7...Nc6 | 16 | 50.0% | 56.3% | 0.01 MB |
| E24 | Nimzo-Indian, Saemisch variation | 16 | 50.0% | 31.3% | 0.01 MB |
| E67 | King's Indian, fianchetto with ...Nd7 | 16 | 50.0% | 62.5% | 0.02 MB |
| D67 | QGD, Orthodox defence, Bd3 line | 16 | 50.0% | 50.0% | 0.01 MB |
| C43 | Petrov, modern attack, Trifunovic variation | 14 | 50.0% | 46.4% | 0.01 MB |
| E65 | King's Indian, fianchetto, Yugoslav, 7.O-O | 12 | 50.0% | 50.0% | 0.01 MB |
| B03 | Alekhine's defence, four pawns attack, 7.Be3 | 12 | 50.0% | 75.0% | 0.01 MB |
| C65 | Ruy Lopez, Berlin defence, Nyholm attack | 10 | 50.0% | 55.0% | 0.01 MB |
| A00 | Amar (Paris) opening | 10 | 50.0% | 35.0% | 0.01 MB |
| D49 | QGD semi-Slav, Meran, Rellstab attack | 10 | 50.0% | 45.0% | 0.01 MB |
| C80 | Ruy Lopez, open, 7.Bb3 | 10 | 50.0% | 55.0% | 0.01 MB |
| B01 | Scandinavian, Icelandic gambit | 10 | 50.0% | 55.0% | 0.01 MB |
| B25 | Sicilian, closed, 6.Ne2 e5 (Botvinnik) | 8 | 50.0% | 50.0% | 0.01 MB |
| D26 | QGA, classical variation, 6.O-O | 8 | 50.0% | 50.0% | 0.01 MB |
| A24 | English, Bremen system with ...g6 | 8 | 50.0% | 62.5% | 0.01 MB |
| C96 | Ruy Lopez, closed (8...Na5) | 8 | 50.0% | 62.5% | 0.01 MB |
| A52 | Budapest, Adler variation | 8 | 50.0% | 25.0% | 0.01 MB |
| D33 | QGD, Tarrasch, Prague variation | 8 | 50.0% | 37.5% | 0.01 MB |
| C02 | French, advance, Nimzovich system | 8 | 50.0% | 37.5% | 0.01 MB |
| A61 | Benoni, Uhlmann variation | 8 | 50.0% | 50.0% | 0.01 MB |
| C00 | French, Reti (Spielmann) variation | 8 | 50.0% | 50.0% | 0.01 MB |
| A52 | Budapest, Rubinstein variation | 8 | 50.0% | 62.5% | 0.01 MB |
| E83 | King's Indian, Saemisch, Panno formation | 6 | 50.0% | 58.3% | 0.01 MB |
| A86 | Dutch, Leningrad variation | 6 | 50.0% | 58.3% | 0.01 MB |
| C25 | Vienna gambit | 6 | 50.0% | 58.3% | 0.01 MB |
| C36 | KGA, Abbazia defence, modern variation | 6 | 50.0% | 41.7% | 0.01 MB |
| C44 | Ponziani counter-gambit | 6 | 50.0% | 41.7% | 0.00 MB |
| A16 | English, Anglo-Gruenfeld, Czech defense | 6 | 50.0% | 41.7% | 0.01 MB |
| C49 | Four knights | 6 | 50.0% | 75.0% | 0.00 MB |
| D52 | QGD | 6 | 50.0% | 58.3% | 0.01 MB |
| B23 | Sicilian, Grand Prix attack, Schofman variation | 4 | 50.0% | 50.0% | 0.00 MB |
| C45 | Scotch, Blumenfeld attack | 4 | 50.0% | 25.0% | 0.00 MB |
| D16 | QGD Slav, Soultanbeieff variation | 4 | 50.0% | 75.0% | 0.00 MB |
| B57 | Sicilian, Magnus Smith trap | 4 | 50.0% | 25.0% | 0.00 MB |
| B12 | Caro-Kann, Edinburgh variation | 4 | 50.0% | 25.0% | 0.00 MB |
| B03 | Alekhine's defence | 4 | 50.0% | 75.0% | 0.00 MB |
| B15 | Caro-Kann, Rasa-Studier gambit | 4 | 50.0% | 25.0% | 0.00 MB |
| C47 | Four knights, Scotch variation | 4 | 50.0% | 50.0% | 0.00 MB |
| B96 | Sicilian, Najdorf, Polugayevsky, Simagin variation | 4 | 50.0% | 25.0% | 0.00 MB |
| C47 | Four knights, Belgrade gambit | 4 | 50.0% | 50.0% | 0.00 MB |
| C48 | Four knights, Rubinstein counter-gambit, Henneberger variation | 4 | 50.0% | 50.0% | 0.00 MB |
| A00 | Durkin's attack | 4 | 50.0% | 25.0% | 0.00 MB |
| B25 | Sicilian, closed, 6.f4 e5 (Botvinnik) | 4 | 50.0% | 75.0% | 0.01 MB |
| A86 | Dutch with c4 & g3 | 4 | 50.0% | 25.0% | 0.00 MB |
| B12 | Caro-Kann, advance, Short variation | 4 | 50.0% | 75.0% | 0.00 MB |
| D84 | Gruenfeld, Gruenfeld gambit accepted | 2 | 50.0% | 25.0% | 0.00 MB |
| B72 | Sicilian, dragon, classical, Nottingham variation | 2 | 50.0% | 75.0% | 0.00 MB |
| A44 | Semi-Benoni (`blockade variation') | 2 | 50.0% | 75.0% | 0.00 MB |
| C33 | KGA, bishop's gambit, Gifford variation | 2 | 50.0% | 75.0% | 0.00 MB |
| D68 | QGD, Orthodox defence, classical, 13.d1b1 (Maroczy) | 2 | 50.0% | 25.0% | 0.00 MB |
| A43 | Old Benoni, Franco-Benoni defence | 2 | 50.0% | 25.0% | 0.00 MB |
| B80 | Sicilian, Scheveningen, Vitolins variation | 2 | 50.0% | 25.0% | 0.00 MB |
| C14 | French, classical, Rubinstein variation | 2 | 50.0% | 75.0% | 0.00 MB |
| C84 | Ruy Lopez, closed, Basque gambit (North Spanish variation) | 2 | 50.0% | 25.0% | 0.00 MB |
| A21 | English, Keres variation | 2 | 50.0% | 25.0% | 0.00 MB |
| C41 | Philidor, Hanham, Steiner variation | 2 | 50.0% | 25.0% | 0.00 MB |
| C27 | Vienna, Alekhine variation | 2 | 50.0% | 75.0% | 0.00 MB |
| C64 | Ruy Lopez, classical defence, Charousek variation | 2 | 50.0% | 75.0% | 0.00 MB |
| C30 | KGD, 2...Nf6 | 2 | 50.0% | 25.0% | 0.00 MB |
| C21 | Danish gambit | 2 | 50.0% | 75.0% | 0.00 MB |
| A04 | Reti, Lisitsin gambit deferred | 2 | 50.0% | 25.0% | 0.00 MB |
| B20 | Sicilian, wing gambit | 2 | 50.0% | 75.0% | 0.00 MB |
| B41 | Sicilian, Kan, Maroczy bind - Bronstein variation | 2 | 50.0% | 25.0% | 0.00 MB |
| C65 | Ruy Lopez, Berlin defence, Kaufmann variation | 2 | 50.0% | 75.0% | 0.00 MB |
| B18 | Caro-Kann, classical, Maroczy attack | 2 | 50.0% | 25.0% | 0.00 MB |
| D21 | QGA, Alekhine defense, Borisenko-Furman variation | 2 | 50.0% | 25.0% | 0.00 MB |
| B22 | Sicilian, 2.c3, Heidenfeld variation | 2 | 50.0% | 75.0% | 0.00 MB |
| D31 | QGD, Alapin variation | 2 | 50.0% | 75.0% | 0.00 MB |
| E27 | Nimzo-Indian, Saemisch variation | 2 | 50.0% | 25.0% | 0.00 MB |
| C51 | Evans gambit, Stone-Ware variation | 2 | 50.0% | 75.0% | 0.00 MB |
| C20 | KP, Lopez opening | 2 | 50.0% | 25.0% | 0.00 MB |
| C41 | Philidor, Nimzovich, Sokolsky variation | 2 | 50.0% | 75.0% | 0.00 MB |
| C59 | Two knights defence, Goering variation | 2 | 50.0% | 25.0% | 0.00 MB |
| A25 | English, closed, Hort variation | 2 | 50.0% | 25.0% | 0.00 MB |
| D33 | QGD, Tarrasch, Wagner variation | 2 | 50.0% | 75.0% | 0.00 MB |
| B44 | Sicilian, Szen variation, Dely-Kasparov gambit | 2 | 50.0% | 75.0% | 0.00 MB |
| D15 | QGD Slav, Suechting variation | 2 | 50.0% | 75.0% | 0.00 MB |
| C45 | Scotch, Tartakower variation | 2 | 50.0% | 25.0% | 0.00 MB |
| B00 | Lemming defence | 2 | 50.0% | 25.0% | 0.00 MB |
| C40 | QP counter-gambit (elephant gambit) | 2 | 50.0% | 75.0% | 0.00 MB |
| C94 | Ruy Lopez, closed, Breyer defence | 2 | 50.0% | 25.0% | 0.00 MB |
| C43 | Petrov, Urusov gambit | 2 | 50.0% | 75.0% | 0.00 MB |
| B27 | Sicilian defence | 2 | 50.0% | 75.0% | 0.00 MB |
| E34 | Nimzo-Indian, classical, Noa variation | 117 | 49.6% | 53.0% | 0.08 MB |
| D85 | Gruenfeld, modern exchange variation | 698 | 49.4% | 53.9% | 0.44 MB |
| D27 | QGA, classical, 6...a6 | 394 | 49.2% | 56.3% | 0.26 MB |
| C47 | Four knights, Scotch, 4...exd4 | 47 | 48.9% | 50.0% | 0.04 MB |
| D93 | Gruenfeld with Bf4 e3 | 43 | 48.8% | 57.0% | 0.03 MB |
| D42 | QGD, Semi-Tarrasch, 7.Bd3 | 41 | 48.8% | 58.5% | 0.04 MB |
| B08 | Pirc, classical, h3 system | 37 | 48.6% | 48.6% | 0.03 MB |
| C46 | Four knights game | 70 | 48.6% | 51.4% | 0.05 MB |
| A09 | Reti accepted | 33 | 48.5% | 48.5% | 0.03 MB |
| B85 | Sicilian, Scheveningen, classical | 31 | 48.4% | 56.5% | 0.03 MB |
| B07 | Pirc, Byrne variation | 31 | 48.4% | 59.7% | 0.03 MB |
| C70 | Ruy Lopez, Classical defence deferred | 58 | 48.3% | 55.2% | 0.05 MB |
| C19 | French, Winawer, advance, 6...Ne7 | 29 | 48.3% | 51.7% | 0.02 MB |
| D61 | QGD, Orthodox defence, Rubinstein variation | 29 | 48.3% | 51.7% | 0.03 MB |
| B36 | Sicilian, accelerated fianchetto, Maroczy bind | 73 | 47.9% | 52.7% | 0.05 MB |
| E62 | King's Indian, fianchetto, lesser Simagin (Spassky) variation | 23 | 47.8% | 54.3% | 0.02 MB |
| D76 | Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6 | 44 | 47.7% | 55.7% | 0.04 MB |
| E46 | Nimzo-Indian, Reshevsky variation | 65 | 47.7% | 46.9% | 0.05 MB |
| A05 | Reti, King's Indian attack | 84 | 47.6% | 51.2% | 0.06 MB |
| D02 | Queen's pawn game, Chigorin variation | 40 | 47.5% | 48.8% | 0.04 MB |
| B14 | Caro-Kann, Panov-Botvinnik attack, 5...g6 | 40 | 47.5% | 51.3% | 0.03 MB |
| D55 | QGD, Petrosian variation | 116 | 47.4% | 54.7% | 0.08 MB |
| A58 | Benko gambit, fianchetto variation | 19 | 47.4% | 50.0% | 0.02 MB |
| E10 | Blumenfeld counter-gambit, Dus-Chotimursky variation | 19 | 47.4% | 50.0% | 0.01 MB |
| D39 | QGD, Ragozin, Vienna variation | 535 | 47.3% | 52.8% | 0.30 MB |
| D52 | QGD, Cambridge Springs defence, Bogoljubow variation | 68 | 47.1% | 52.9% | 0.05 MB |
| C42 | Petrov, Cozio (Lasker) attack | 17 | 47.1% | 52.9% | 0.02 MB |
| C68 | Ruy Lopez, exchange variation | 17 | 47.1% | 52.9% | 0.01 MB |
| A55 | Old Indian, main line | 64 | 46.9% | 60.9% | 0.05 MB |
| D82 | Gruenfeld, 4.Bf4 | 32 | 46.9% | 51.6% | 0.02 MB |
| C07 | French, Tarrasch, open variation | 466 | 46.8% | 51.9% | 0.31 MB |
| A28 | English, four knights system | 62 | 46.8% | 49.2% | 0.05 MB |
| B13 | Caro-Kann, exchange variation | 92 | 46.7% | 50.5% | 0.07 MB |
| E06 | Catalan, closed, 5.Nf3 | 377 | 46.7% | 52.0% | 0.26 MB |
| C21 | Centre game | 45 | 46.7% | 70.0% | 0.03 MB |
| D96 | Gruenfeld, Russian variation | 15 | 46.7% | 70.0% | 0.01 MB |
| B18 | Caro-Kann, classical variation | 73 | 46.6% | 50.7% | 0.06 MB |
| A13 | English opening, Agincourt variation | 116 | 46.6% | 54.3% | 0.10 MB |
| D94 | Gruenfeld, 5.e3 | 58 | 46.6% | 57.8% | 0.04 MB |
| C54 | Giuoco Piano | 28 | 46.4% | 48.2% | 0.02 MB |
| C26 | Vienna, Paulsen-Mieses variation | 41 | 46.3% | 47.6% | 0.03 MB |
| D14 | QGD Slav, exchange variation, 6.Bf4 Bf5 | 39 | 46.2% | 53.8% | 0.03 MB |
| B77 | Sicilian, dragon, Yugoslav attack, 9...Bd7 | 26 | 46.2% | 53.8% | 0.02 MB |
| C50 | Giuoco Piano | 26 | 46.2% | 53.8% | 0.02 MB |
| B39 | Sicilian, accelerated fianchetto, Breyer variation | 26 | 46.2% | 50.0% | 0.02 MB |
| D74 | Neo-Gruenfeld, 6.cd Nxd5, 7.O-O | 13 | 46.2% | 61.5% | 0.01 MB |
| C77 | Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred) | 13 | 46.2% | 53.8% | 0.02 MB |
| B04 | Alekhine's defence, modern variation | 13 | 46.2% | 69.2% | 0.01 MB |
| E17 | Queen's Indian, anti-Queen's Indian system | 13 | 46.2% | 53.8% | 0.01 MB |
| E55 | Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation | 829 | 46.1% | 53.7% | 0.54 MB |
| D79 | Neo-Gruenfeld, 6.O-O, main line | 37 | 45.9% | 50.0% | 0.03 MB |
| C89 | Ruy Lopez, Marshall, main line, 12.d2d4 | 24 | 45.8% | 43.8% | 0.02 MB |
| B10 | Caro-Kann, anti-anti-Caro-Kann defence | 101 | 45.5% | 49.5% | 0.07 MB |
| B58 | Sicilian, Boleslavsky variation | 77 | 45.5% | 44.8% | 0.06 MB |
| D06 | QGD, Marshall defence | 44 | 45.5% | 61.4% | 0.03 MB |
| E62 | King's Indian, fianchetto, Larsen system | 44 | 45.5% | 61.4% | 0.03 MB |
| A09 | Reti opening | 22 | 45.5% | 54.5% | 0.02 MB |
| C83 | Ruy Lopez, open, classical defence | 22 | 45.5% | 45.5% | 0.02 MB |
| C43 | Petrov, modern attack, main line | 22 | 45.5% | 63.6% | 0.02 MB |
| D44 | QGD semi-Slav, 5.Bg5 dc | 11 | 45.5% | 50.0% | 0.01 MB |
| B86 | Sicilian, Sozin attack | 11 | 45.5% | 40.9% | 0.01 MB |
| C44 | Scotch, Lolli variation | 11 | 45.5% | 50.0% | 0.01 MB |
| A54 | Old Indian, Ukrainian variation, 4.Nf3 | 11 | 45.5% | 59.1% | 0.01 MB |
| A05 | Reti, King's Indian attack, Reti-Smyslov variation | 11 | 45.5% | 50.0% | 0.01 MB |
| B02 | Alekhine's defence, Two pawns' (Lasker's) attack | 11 | 45.5% | 59.1% | 0.01 MB |
| A28 | English, Nenarokov variation | 11 | 45.5% | 68.2% | 0.01 MB |
| B20 | Sicilian, Steinitz variation | 124 | 45.2% | 46.8% | 0.09 MB |
| D26 | QGA, 4...e6 | 60 | 45.0% | 52.5% | 0.04 MB |
| B80 | Sicilian, Scheveningen, fianchetto variation | 40 | 45.0% | 45.0% | 0.03 MB |
| C00 | French defence, Steiner variation | 125 | 44.8% | 50.4% | 0.09 MB |
| D58 | QGD, Tartakower (Makagonov-Bondarevsky) system | 2021 | 44.8% | 52.8% | 1.31 MB |
| C10 | French, Rubinstein variation | 179 | 44.7% | 57.0% | 0.13 MB |
| A07 | Reti, King's Indian attack, Keres variation | 47 | 44.7% | 43.6% | 0.04 MB |
| D34 | QGD, Tarrasch, Prague variation, 9.Bg5 | 56 | 44.6% | 59.8% | 0.04 MB |
| D97 | Gruenfeld, Russian, Prins variation | 117 | 44.4% | 57.3% | 0.08 MB |
| A07 | Reti, King's Indian attack (with ...c5) | 54 | 44.4% | 51.9% | 0.04 MB |
| A28 | English, four knights, Marini variation | 54 | 44.4% | 46.3% | 0.04 MB |
| D15 | QGD Slav, Schlechter variation | 18 | 44.4% | 55.6% | 0.01 MB |
| D63 | QGD, Orthodox defence, Swiss (Henneberger) variation | 18 | 44.4% | 61.1% | 0.01 MB |
| D60 | QGD, Orthodox defence | 9 | 44.4% | 66.7% | 0.01 MB |
| D20 | QGA, Linares variation | 9 | 44.4% | 55.6% | 0.01 MB |
| A78 | Benoni, classical with ...Re8 and ...Na6 | 9 | 44.4% | 55.6% | 0.01 MB |
| C30 | KGD, classical variation | 9 | 44.4% | 66.7% | 0.01 MB |
| D05 | Colle system | 9 | 44.4% | 66.7% | 0.01 MB |
| D46 | QGD semi-Slav, 6.Bd3 | 9 | 44.4% | 55.6% | 0.01 MB |
| B72 | Sicilian, dragon, 6.Be3 | 9 | 44.4% | 44.4% | 0.01 MB |
| A00 | Benko's opening, reversed Alekhine | 9 | 44.4% | 44.4% | 0.01 MB |
| A31 | English, symmetrical, Benoni formation | 120 | 44.2% | 58.8% | 0.10 MB |
| A11 | English, Caro-Kann defensive system | 68 | 44.1% | 54.4% | 0.05 MB |
| A33 | English, symmetrical variation | 161 | 44.1% | 55.6% | 0.11 MB |
| A39 | English, symmetrical, main line with d4 | 84 | 44.0% | 58.9% | 0.06 MB |
| A38 | English, symmetrical variation | 75 | 44.0% | 47.3% | 0.06 MB |
| D52 | QGD, Cambridge Springs defence, Yugoslav variation | 50 | 44.0% | 58.0% | 0.04 MB |
| B97 | Sicilian, Najdorf, Poisoned pawn variation | 373 | 44.0% | 49.3% | 0.19 MB |
| A50 | Kevitz-Trajkovich defence | 41 | 43.9% | 48.8% | 0.03 MB |
| D34 | QGD, Tarrasch, Prague variation, Normal position | 57 | 43.9% | 51.8% | 0.05 MB |
| A09 | Reti, advance variation | 73 | 43.8% | 47.9% | 0.06 MB |
| A17 | English opening | 32 | 43.8% | 56.3% | 0.02 MB |
| E53 | Nimzo-Indian, 4.e3, Keres variation | 16 | 43.8% | 65.6% | 0.01 MB |