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 |
| C20 | Alapin's opening | 7 | 14.3% | 64.3% | 0.01 MB |
| B02 | Alekhine's defence | 10 | 10.0% | 35.0% | 0.01 MB |
| B03 | Alekhine's defence | 4 | 50.0% | 75.0% | 0.00 MB |
| B03 | Alekhine's defence, Balogh variation | 1 | 0.0% | 100.0% | 0.00 MB |
| B02 | Alekhine's defence, Brooklyn defence | 5 | 20.0% | 30.0% | 0.01 MB |
| B02 | Alekhine's defence, Maroczy variation | 13 | 30.8% | 53.8% | 0.01 MB |
| B03 | Alekhine's defence, O'Sullivan gambit | 3 | 66.7% | 66.7% | 0.00 MB |
| B02 | Alekhine's defence, Saemisch attack | 5 | 60.0% | 50.0% | 0.00 MB |
| B02 | Alekhine's defence, Scandinavian variation | 7 | 0.0% | 42.9% | 0.01 MB |
| B02 | Alekhine's defence, Two pawns' (Lasker's) attack | 11 | 45.5% | 59.1% | 0.01 MB |
| B03 | Alekhine's defence, exchange variation | 51 | 31.4% | 56.9% | 0.04 MB |
| B03 | Alekhine's defence, exchange, Karpov variation | 1 | 100.0% | 50.0% | 0.00 MB |
| B03 | Alekhine's defence, four pawns attack | 7 | 28.6% | 57.1% | 0.01 MB |
| B03 | Alekhine's defence, four pawns attack, 7.Be3 | 12 | 50.0% | 75.0% | 0.01 MB |
| B03 | Alekhine's defence, four pawns attack, fianchetto variation | 4 | 0.0% | 50.0% | 0.00 MB |
| B04 | Alekhine's defence, modern variation | 13 | 46.2% | 69.2% | 0.01 MB |
| B05 | Alekhine's defence, modern variation, 4...Bg4 | 53 | 32.1% | 68.9% | 0.04 MB |
| B05 | Alekhine's defence, modern, Alekhine variation | 1 | 100.0% | 50.0% | 0.00 MB |
| B05 | Alekhine's defence, modern, Flohr variation | 8 | 12.5% | 68.8% | 0.01 MB |
| B04 | Alekhine's defence, modern, Keres variation | 10 | 60.0% | 60.0% | 0.01 MB |
| B04 | Alekhine's defence, modern, Larsen variation | 28 | 39.3% | 62.5% | 0.02 MB |
| B04 | Alekhine's defence, modern, Schmid variation | 11 | 36.4% | 54.5% | 0.01 MB |
| B04 | Alekhine's defence, modern, fianchetto variation | 20 | 35.0% | 67.5% | 0.02 MB |
| A00 | Amar (Paris) opening | 10 | 50.0% | 35.0% | 0.01 MB |
| A00 | Amar gambit | 1 | 0.0% | 0.0% | 0.00 MB |
| A00 | Amsterdam attack | 1 | 0.0% | 100.0% | 0.00 MB |
| A00 | Anderssen's opening | 5 | 40.0% | 20.0% | 0.01 MB |
| A00 | Anti-Borg (Desprez) opening | 1 | 0.0% | 0.0% | 0.00 MB |
| A40 | Beefeater defence | 3 | 33.3% | 83.3% | 0.00 MB |
| A57 | Benko gambit | 51 | 23.5% | 62.7% | 0.04 MB |
| A59 | Benko gambit | 1 | 0.0% | 0.0% | 0.00 MB |
| A58 | Benko gambit accepted | 67 | 41.8% | 53.7% | 0.04 MB |
| A57 | Benko gambit half accepted | 80 | 30.0% | 46.3% | 0.06 MB |
| A59 | Benko gambit, 7.e4 | 1 | 100.0% | 50.0% | 0.00 MB |
| A57 | Benko gambit, Zaitsev system | 8 | 12.5% | 6.3% | 0.01 MB |
| A58 | Benko gambit, fianchetto variation | 19 | 47.4% | 50.0% | 0.02 MB |
| A59 | Benko gambit, main line | 14 | 28.6% | 64.3% | 0.01 MB |
| A00 | Benko's opening | 317 | 37.2% | 51.4% | 0.22 MB |
| A00 | Benko's opening, reversed Alekhine | 9 | 44.4% | 44.4% | 0.01 MB |
| A56 | Benoni defence | 67 | 29.9% | 55.2% | 0.05 MB |
| A60 | Benoni defence | 13 | 30.8% | 69.2% | 0.01 MB |
| A61 | Benoni defence | 69 | 18.8% | 71.7% | 0.05 MB |
| A56 | Benoni defence, Hromodka system | 19 | 15.8% | 76.3% | 0.02 MB |
| A65 | Benoni, 6.e4 | 2 | 0.0% | 0.0% | 0.00 MB |
| A61 | Benoni, Nimzovich (knight's tour) variation | 47 | 23.4% | 60.6% | 0.03 MB |
| A67 | Benoni, Taimanov variation | 4 | 0.0% | 100.0% | 0.00 MB |
| A61 | Benoni, Uhlmann variation | 8 | 50.0% | 50.0% | 0.01 MB |
| A78 | Benoni, classical with ...Re8 and ...Na6 | 9 | 44.4% | 55.6% | 0.01 MB |
| A75 | Benoni, classical with ...a6 and 10...Bg4 | 9 | 22.2% | 55.6% | 0.01 MB |
| A70 | Benoni, classical with e4 and Nf3 | 84 | 27.4% | 55.4% | 0.05 MB |
| A70 | Benoni, classical without 9.O-O | 1 | 0.0% | 0.0% | 0.00 MB |
| A72 | Benoni, classical without 9.O-O | 8 | 12.5% | 81.3% | 0.01 MB |
| A79 | Benoni, classical, 11.f3 | 12 | 41.7% | 54.2% | 0.01 MB |
| A71 | Benoni, classical, 8.Bg5 | 15 | 13.3% | 46.7% | 0.01 MB |
| A76 | Benoni, classical, 9...Re8 | 10 | 20.0% | 30.0% | 0.01 MB |
| A77 | Benoni, classical, 9...Re8, 10.Nd2 | 19 | 21.1% | 68.4% | 0.01 MB |
| A74 | Benoni, classical, 9...a6, 10.a4 | 1 | 0.0% | 100.0% | 0.00 MB |
| A73 | Benoni, classical, 9.O-O | 7 | 0.0% | 71.4% | 0.01 MB |
| A61 | Benoni, fianchetto variation | 2 | 0.0% | 100.0% | 0.00 MB |
| A62 | Benoni, fianchetto variation | 53 | 30.2% | 62.3% | 0.04 MB |
| A64 | Benoni, fianchetto, 11...Re8 | 16 | 18.8% | 34.4% | 0.01 MB |
| A63 | Benoni, fianchetto, 9...Nbd7 | 5 | 20.0% | 70.0% | 0.01 MB |
| A69 | Benoni, four pawns attack, main line | 9 | 55.6% | 50.0% | 0.01 MB |
| A02 | Bird's opening | 5 | 40.0% | 60.0% | 0.00 MB |
| A03 | Bird's opening | 4 | 25.0% | 37.5% | 0.00 MB |
| A02 | Bird, From gambit, Lasker variation | 1 | 0.0% | 100.0% | 0.00 MB |
| C23 | Bishop's opening | 66 | 34.8% | 56.8% | 0.05 MB |
| C24 | Bishop's opening, Berlin defence | 80 | 38.8% | 56.9% | 0.06 MB |
| C23 | Bishop's opening, Calabrese counter-gambit, Jaenisch variation | 3 | 0.0% | 100.0% | 0.00 MB |
| C23 | Bishop's opening, Classical variation | 20 | 35.0% | 52.5% | 0.01 MB |
| C23 | Bishop's opening, Lisitsyn variation | 1 | 0.0% | 0.0% | 0.00 MB |
| C23 | Bishop's opening, Philidor counter-attack | 28 | 64.3% | 64.3% | 0.02 MB |
| C23 | Bishop's opening, Philidor variation | 4 | 75.0% | 37.5% | 0.00 MB |
| C24 | Bishop's opening, Urusov gambit | 9 | 22.2% | 33.3% | 0.01 MB |
| D00 | Blackmar gambit | 5 | 80.0% | 40.0% | 0.01 MB |
| A45 | Blackmar-Diemer gambit | 9 | 11.1% | 50.0% | 0.01 MB |
| E10 | Blumenfeld counter-gambit | 10 | 20.0% | 60.0% | 0.01 MB |
| E10 | Blumenfeld counter-gambit accepted | 9 | 22.2% | 33.3% | 0.01 MB |
| E10 | Blumenfeld counter-gambit, Dus-Chotimursky variation | 19 | 47.4% | 50.0% | 0.01 MB |
| E10 | Blumenfeld counter-gambit, Spielmann variation | 4 | 0.0% | 25.0% | 0.00 MB |
| C27 | Boden-Kieseritsky gambit | 1 | 0.0% | 100.0% | 0.00 MB |
| C27 | Boden-Kieseritsky gambit, Lichtenhein defence | 1 | 100.0% | 50.0% | 0.00 MB |
| E11 | Bogo-Indian defence | 117 | 38.5% | 59.4% | 0.09 MB |
| E11 | Bogo-Indian defence, Gruenfeld variation | 145 | 31.7% | 52.4% | 0.10 MB |
| E11 | Bogo-Indian defence, Nimzovich variation | 216 | 33.3% | 54.2% | 0.15 MB |
| A51 | Budapest defence declined | 2 | 0.0% | 50.0% | 0.00 MB |
| A52 | Budapest, Adler variation | 8 | 50.0% | 25.0% | 0.01 MB |
| A52 | Budapest, Alekhine, Abonyi variation | 2 | 0.0% | 50.0% | 0.00 MB |
| A51 | Budapest, Fajarowicz variation | 5 | 0.0% | 60.0% | 0.00 MB |
| A52 | Budapest, Rubinstein variation | 8 | 50.0% | 62.5% | 0.01 MB |
| A45 | Canard opening | 10 | 30.0% | 25.0% | 0.01 MB |
| B10 | Caro-Kann defence | 354 | 34.2% | 57.2% | 0.23 MB |
| B12 | Caro-Kann defence | 58 | 31.0% | 55.2% | 0.04 MB |
| B15 | Caro-Kann defence | 41 | 31.7% | 47.6% | 0.03 MB |
| B12 | Caro-Kann, 3.Nd2 | 46 | 43.5% | 54.3% | 0.03 MB |
| B15 | Caro-Kann, Alekhine gambit | 3 | 33.3% | 83.3% | 0.00 MB |
| B16 | Caro-Kann, Bronstein-Larsen variation | 22 | 22.7% | 65.9% | 0.02 MB |
| B12 | Caro-Kann, Edinburgh variation | 4 | 50.0% | 25.0% | 0.00 MB |
| B15 | Caro-Kann, Forgacs variation | 43 | 34.9% | 47.7% | 0.03 MB |
| B10 | Caro-Kann, Goldman (Spielmann) variation | 4 | 25.0% | 37.5% | 0.00 MB |
| B15 | Caro-Kann, Gurgenidze counter-attack | 2 | 0.0% | 50.0% | 0.00 MB |
| B15 | Caro-Kann, Gurgenidze system | 56 | 35.7% | 58.9% | 0.04 MB |
| B13 | Caro-Kann, Panov-Botvinnik attack | 70 | 51.4% | 48.6% | 0.05 MB |
| B14 | Caro-Kann, Panov-Botvinnik attack, 5...e6 | 342 | 42.4% | 56.0% | 0.22 MB |
| B14 | Caro-Kann, Panov-Botvinnik attack, 5...g6 | 40 | 47.5% | 51.3% | 0.03 MB |
| B13 | Caro-Kann, Panov-Botvinnik, Czerniak variation | 3 | 33.3% | 16.7% | 0.00 MB |
| B13 | Caro-Kann, Panov-Botvinnik, Gunderam attack | 2 | 0.0% | 50.0% | 0.00 MB |
| B13 | Caro-Kann, Panov-Botvinnik, Herzog defence | 1 | 0.0% | 0.0% | 0.00 MB |
| B13 | Caro-Kann, Panov-Botvinnik, normal variation | 8 | 12.5% | 68.8% | 0.01 MB |
| B15 | Caro-Kann, Rasa-Studier gambit | 4 | 50.0% | 25.0% | 0.00 MB |
| B17 | Caro-Kann, Steinitz variation | 431 | 35.7% | 54.3% | 0.28 MB |
| B15 | Caro-Kann, Tartakower (Nimzovich) variation | 22 | 36.4% | 59.1% | 0.02 MB |
| B12 | Caro-Kann, Tartakower (fantasy) variation | 110 | 40.9% | 55.9% | 0.07 MB |
| B10 | Caro-Kann, Two knights variation | 49 | 40.8% | 55.1% | 0.04 MB |
| B11 | Caro-Kann, Two knights, 3...Bg4 | 40 | 30.0% | 57.5% | 0.03 MB |
| B12 | Caro-Kann, advance variation | 731 | 33.1% | 56.4% | 0.45 MB |
| B12 | Caro-Kann, advance, Short variation | 4 | 50.0% | 75.0% | 0.00 MB |
| B10 | Caro-Kann, anti-Caro-Kann defence | 121 | 28.9% | 59.9% | 0.08 MB |
| B10 | Caro-Kann, anti-anti-Caro-Kann defence | 101 | 45.5% | 49.5% | 0.07 MB |
| B18 | Caro-Kann, classical variation | 73 | 46.6% | 50.7% | 0.06 MB |
| B18 | Caro-Kann, classical, 6.h4 | 64 | 32.8% | 55.5% | 0.05 MB |
| B19 | Caro-Kann, classical, 7...Nd7 | 9 | 55.6% | 50.0% | 0.01 MB |
| B18 | Caro-Kann, classical, Flohr variation | 2 | 0.0% | 50.0% | 0.00 MB |
| B18 | Caro-Kann, classical, Maroczy attack | 2 | 50.0% | 25.0% | 0.00 MB |
| B19 | Caro-Kann, classical, Spassky variation | 664 | 39.6% | 53.4% | 0.40 MB |
| B10 | Caro-Kann, closed (Breyer) variation | 37 | 35.1% | 50.0% | 0.03 MB |
| B13 | Caro-Kann, exchange variation | 92 | 46.7% | 50.5% | 0.07 MB |
| B13 | Caro-Kann, exchange, Rubinstein variation | 14 | 28.6% | 35.7% | 0.01 MB |
| E00 | Catalan opening | 357 | 40.1% | 55.3% | 0.25 MB |
| E01 | Catalan, closed | 30 | 33.3% | 56.7% | 0.02 MB |
| E06 | Catalan, closed, 5.Nf3 | 377 | 46.7% | 52.0% | 0.26 MB |
| E07 | Catalan, closed, 6...Nbd7 | 12 | 25.0% | 29.2% | 0.01 MB |
| E08 | Catalan, closed, 7.Qc2 | 3 | 0.0% | 33.3% | 0.00 MB |
| E07 | Catalan, closed, Botvinnik variation | 8 | 25.0% | 50.0% | 0.01 MB |
| E08 | Catalan, closed, Qc2 & b3 | 20 | 40.0% | 50.0% | 0.02 MB |
| E09 | Catalan, closed, main line | 23 | 13.0% | 71.7% | 0.02 MB |
| E04 | Catalan, open, 5.Nf3 | 567 | 39.3% | 51.1% | 0.35 MB |
| E02 | Catalan, open, 5.Qa4 | 10 | 40.0% | 70.0% | 0.01 MB |
| E05 | Catalan, open, classical line | 21 | 23.8% | 50.0% | 0.02 MB |
| C21 | Centre game | 45 | 46.7% | 70.0% | 0.03 MB |
| C22 | Centre game | 3 | 33.3% | 16.7% | 0.00 MB |
| C22 | Centre game, Berger variation | 56 | 23.2% | 70.5% | 0.03 MB |
| C22 | Centre game, Paulsen attack | 3 | 0.0% | 66.7% | 0.00 MB |
| A00 | Clemenz (Mead's, Basman's or de Klerk's) opening | 2 | 100.0% | 50.0% | 0.00 MB |
| D05 | Colle system | 9 | 44.4% | 66.7% | 0.01 MB |
| A56 | Czech Benoni defence | 19 | 31.6% | 78.9% | 0.02 MB |
| A56 | Czech Benoni, King's Indian system | 4 | 25.0% | 37.5% | 0.00 MB |
| C21 | Danish gambit | 2 | 50.0% | 75.0% | 0.00 MB |
| E10 | Doery defence | 9 | 33.3% | 50.0% | 0.01 MB |
| A00 | Dunst (Sleipner, Heinrichsen) opening | 5 | 40.0% | 60.0% | 0.00 MB |
| A00 | Durkin's attack | 4 | 50.0% | 25.0% | 0.00 MB |
| A80 | Dutch | 51 | 31.4% | 64.7% | 0.04 MB |
| A81 | Dutch defence | 128 | 34.4% | 56.3% | 0.10 MB |
| A84 | Dutch defence | 54 | 33.3% | 57.4% | 0.04 MB |
| A90 | Dutch defence | 43 | 30.2% | 59.3% | 0.04 MB |
| A91 | Dutch defence | 3 | 33.3% | 83.3% | 0.00 MB |
| A92 | Dutch defence | 1 | 0.0% | 100.0% | 0.00 MB |
| A81 | Dutch defence, Blackburne variation | 1 | 0.0% | 0.0% | 0.00 MB |
| A90 | Dutch defence, Dutch-Indian (Nimzo-Dutch) variation | 4 | 25.0% | 37.5% | 0.01 MB |
| A84 | Dutch defence, Rubinstein variation | 27 | 40.7% | 50.0% | 0.02 MB |
| A85 | Dutch with c4 & Nc3 | 10 | 20.0% | 60.0% | 0.01 MB |
| A86 | Dutch with c4 & g3 | 4 | 50.0% | 25.0% | 0.00 MB |
| A80 | Dutch, 2.Bg5 variation | 17 | 29.4% | 55.9% | 0.01 MB |
| A82 | Dutch, Balogh defence | 1 | 0.0% | 100.0% | 0.00 MB |
| A97 | Dutch, Ilyin-Genevsky variation | 1 | 0.0% | 100.0% | 0.00 MB |
| A98 | Dutch, Ilyin-Genevsky variation with Qc2 | 1 | 100.0% | 50.0% | 0.00 MB |
| A99 | Dutch, Ilyin-Genevsky variation with b3 | 5 | 60.0% | 70.0% | 0.01 MB |
| A97 | Dutch, Ilyin-Genevsky, Winter variation | 7 | 57.1% | 57.1% | 0.01 MB |
| A86 | Dutch, Leningrad variation | 6 | 50.0% | 58.3% | 0.01 MB |
| A87 | Dutch, Leningrad, main variation | 16 | 62.5% | 62.5% | 0.02 MB |
| A89 | Dutch, Leningrad, main variation with Nc6 | 24 | 33.3% | 66.7% | 0.02 MB |
| A88 | Dutch, Leningrad, main variation with c6 | 34 | 26.5% | 72.1% | 0.03 MB |
| A80 | Dutch, Manhattan (Alapin, Ulvestad) variation | 1 | 100.0% | 50.0% | 0.00 MB |
| A84 | Dutch, Staunton gambit deferred | 8 | 75.0% | 37.5% | 0.01 MB |
| A83 | Dutch, Staunton gambit, Staunton's line | 1 | 100.0% | 50.0% | 0.00 MB |
| A82 | Dutch, Staunton gambit, Tartakower variation | 1 | 100.0% | 50.0% | 0.00 MB |
| A96 | Dutch, classical variation | 10 | 30.0% | 65.0% | 0.01 MB |
| A92 | Dutch, stonewall variation | 1 | 100.0% | 50.0% | 0.00 MB |
| A94 | Dutch, stonewall with Ba3 | 3 | 100.0% | 50.0% | 0.00 MB |
| A92 | Dutch, stonewall with Nc3 | 3 | 33.3% | 50.0% | 0.00 MB |
| A95 | Dutch, stonewall with Nc3 | 8 | 12.5% | 43.8% | 0.01 MB |
| A93 | Dutch, stonewall, Botwinnik variation | 8 | 25.0% | 50.0% | 0.01 MB |
| A90 | Dutch-Indian, Alekhine variation | 4 | 0.0% | 50.0% | 0.00 MB |
| E10 | Dzindzikhashvili defence | 8 | 87.5% | 56.3% | 0.01 MB |
| A10 | English opening | 333 | 42.9% | 53.9% | 0.21 MB |
| A13 | English opening | 362 | 34.0% | 50.7% | 0.25 MB |
| A15 | English opening | 739 | 38.7% | 53.0% | 0.50 MB |
| A16 | English opening | 130 | 28.5% | 52.7% | 0.09 MB |
| A17 | English opening | 32 | 43.8% | 56.3% | 0.02 MB |
| A20 | English opening | 882 | 40.0% | 54.8% | 0.56 MB |
| A21 | English opening | 217 | 30.0% | 59.2% | 0.14 MB |
| A22 | English opening | 115 | 31.3% | 55.7% | 0.08 MB |
| A13 | English opening, Agincourt variation | 116 | 46.6% | 54.3% | 0.10 MB |
| A15 | English, 1...Nf6 (Anglo-Indian defense) | 145 | 29.0% | 57.2% | 0.10 MB |
| A10 | English, Adorjan defence | 16 | 50.0% | 56.3% | 0.01 MB |
| A10 | English, Anglo-Dutch defense | 33 | 36.4% | 51.5% | 0.03 MB |
| A16 | English, Anglo-Gruenfeld defense | 7 | 42.9% | 50.0% | 0.01 MB |
| A16 | English, Anglo-Gruenfeld, Czech defense | 6 | 50.0% | 41.7% | 0.01 MB |
| A16 | English, Anglo-Gruenfeld, Smyslov defense | 5 | 60.0% | 70.0% | 0.00 MB |
| A12 | English, Bled variation | 5 | 20.0% | 90.0% | 0.00 MB |
| A26 | English, Botvinnik system | 31 | 25.8% | 38.7% | 0.02 MB |
| A28 | English, Bradley Beach variation | 9 | 33.3% | 38.9% | 0.01 MB |
| A24 | English, Bremen system with ...g6 | 8 | 50.0% | 62.5% | 0.01 MB |
| A23 | English, Bremen system, Keres variation | 29 | 20.7% | 62.1% | 0.02 MB |
| A22 | English, Bremen, Smyslov system | 215 | 34.4% | 47.9% | 0.14 MB |
| A22 | English, Bremen, reverse dragon | 103 | 38.8% | 49.5% | 0.08 MB |
| A12 | English, Capablanca's variation | 11 | 54.5% | 36.4% | 0.01 MB |
| A22 | English, Carls' Bremen system | 34 | 35.3% | 61.8% | 0.03 MB |
| A11 | English, Caro-Kann defensive system | 68 | 44.1% | 54.4% | 0.05 MB |
| A12 | English, Caro-Kann defensive system | 8 | 62.5% | 56.3% | 0.01 MB |
| A12 | English, Caro-Kann defensive system, Bogolyubov variation | 7 | 28.6% | 71.4% | 0.01 MB |
| A10 | English, Jaenisch gambit | 2 | 0.0% | 100.0% | 0.00 MB |
| A21 | English, Keres variation | 2 | 50.0% | 25.0% | 0.00 MB |
| A21 | English, Kramnik-Shirov counterattack | 76 | 31.6% | 51.3% | 0.06 MB |
| A13 | English, Kurajica defence | 4 | 25.0% | 37.5% | 0.00 MB |
| A12 | English, London defensive system | 10 | 30.0% | 25.0% | 0.01 MB |
| A18 | English, Mikenas-Carls variation | 1 | 0.0% | 100.0% | 0.00 MB |
| A18 | English, Mikenas-Carls, Flohr variation | 5 | 20.0% | 70.0% | 0.00 MB |
| A19 | English, Mikenas-Carls, Sicilian variation | 19 | 36.8% | 44.7% | 0.02 MB |
| A28 | English, Nenarokov variation | 11 | 45.5% | 68.2% | 0.01 MB |
| A13 | English, Neo-Catalan | 27 | 40.7% | 68.5% | 0.02 MB |
| A13 | English, Neo-Catalan accepted | 36 | 41.7% | 54.2% | 0.03 MB |
| A14 | English, Neo-Catalan declined | 28 | 53.6% | 55.4% | 0.02 MB |
| A12 | English, New York (London) defensive system | 3 | 66.7% | 33.3% | 0.00 MB |
| A17 | English, Nimzo-English opening | 72 | 30.6% | 59.7% | 0.05 MB |
| A20 | English, Nimzovich variation | 6 | 16.7% | 91.7% | 0.01 MB |
| A20 | English, Nimzovich, Flohr variation | 15 | 26.7% | 40.0% | 0.01 MB |
| A17 | English, Queens Indian formation | 13 | 38.5% | 50.0% | 0.01 MB |
| A17 | English, Queens Indian, Romanishin variation | 3 | 66.7% | 33.3% | 0.00 MB |
| A13 | English, Romanishin gambit | 7 | 85.7% | 57.1% | 0.01 MB |
| A25 | English, Sicilian reversed | 89 | 31.5% | 48.3% | 0.06 MB |
| A21 | English, Smyslov defence | 5 | 20.0% | 30.0% | 0.00 MB |
| A14 | English, Symmetrical, Keres defence | 108 | 50.9% | 55.1% | 0.08 MB |
| A12 | English, Torre defensive system | 13 | 53.8% | 50.0% | 0.01 MB |
| A21 | English, Troeger defence | 16 | 25.0% | 62.5% | 0.01 MB |
| A13 | English, Wimpey system | 11 | 54.5% | 63.6% | 0.01 MB |
| A25 | English, closed system | 155 | 35.5% | 57.1% | 0.11 MB |
| A26 | English, closed system | 35 | 25.7% | 52.9% | 0.03 MB |
| A25 | English, closed system (without ...d6) | 21 | 38.1% | 57.1% | 0.02 MB |
| A25 | English, closed, 5.Rb1 | 35 | 51.4% | 54.3% | 0.03 MB |
| A25 | English, closed, 5.Rb1 Taimanov variation | 1 | 0.0% | 0.0% | 0.00 MB |
| A25 | English, closed, Hort variation | 2 | 50.0% | 25.0% | 0.00 MB |
| A28 | English, four knights system | 62 | 46.8% | 49.2% | 0.05 MB |
| A28 | English, four knights, 4.e3 | 214 | 34.6% | 54.2% | 0.14 MB |
| A28 | English, four knights, Capablanca variation | 40 | 42.5% | 53.8% | 0.03 MB |
| A28 | English, four knights, Marini variation | 54 | 44.4% | 46.3% | 0.04 MB |
| A28 | English, four knights, Nimzovich variation | 35 | 34.3% | 42.9% | 0.03 MB |
| A28 | English, four knights, Romanishin variation | 81 | 50.6% | 57.4% | 0.06 MB |
| A28 | English, four knights, Stean variation | 21 | 38.1% | 61.9% | 0.01 MB |
| A29 | English, four knights, kingside fianchetto | 1250 | 37.5% | 51.8% | 0.76 MB |
| A30 | English, symmetrical variation | 713 | 35.8% | 55.2% | 0.46 MB |
| A32 | English, symmetrical variation | 20 | 35.0% | 62.5% | 0.02 MB |
| A33 | English, symmetrical variation | 161 | 44.1% | 55.6% | 0.11 MB |
| A34 | English, symmetrical variation | 221 | 34.4% | 56.1% | 0.15 MB |
| A35 | English, symmetrical variation | 35 | 28.6% | 48.6% | 0.04 MB |
| A36 | English, symmetrical variation | 24 | 20.8% | 68.8% | 0.02 MB |
| A37 | English, symmetrical variation | 36 | 25.0% | 54.2% | 0.03 MB |
| A38 | English, symmetrical variation | 75 | 44.0% | 47.3% | 0.06 MB |
| A31 | English, symmetrical, Benoni formation | 120 | 44.2% | 58.8% | 0.10 MB |
| A36 | English, symmetrical, Botvinnik system | 7 | 42.9% | 50.0% | 0.01 MB |
| A36 | English, symmetrical, Botvinnik system reversed | 7 | 0.0% | 42.9% | 0.01 MB |
| A37 | English, symmetrical, Botvinnik system reversed | 65 | 26.2% | 54.6% | 0.05 MB |
| A33 | English, symmetrical, Geller variation | 105 | 30.5% | 56.2% | 0.08 MB |
| A34 | English, symmetrical, Rubinstein system | 15 | 40.0% | 46.7% | 0.01 MB |
| A35 | English, symmetrical, four knights system | 274 | 40.5% | 52.7% | 0.19 MB |
| A30 | English, symmetrical, hedgehog system | 455 | 38.7% | 57.1% | 0.30 MB |
| A30 | English, symmetrical, hedgehog, flexible formation | 74 | 43.2% | 56.8% | 0.05 MB |
| A38 | English, symmetrical, main line with b3 | 1 | 100.0% | 50.0% | 0.00 MB |
| A38 | English, symmetrical, main line with d3 | 5 | 0.0% | 0.0% | 0.01 MB |
| A39 | English, symmetrical, main line with d4 | 84 | 44.0% | 58.9% | 0.06 MB |
| A34 | English, symmetrical, three knights system | 83 | 42.2% | 60.8% | 0.07 MB |
| A27 | English, three knights system | 37 | 27.0% | 51.4% | 0.03 MB |
| A36 | English, ultra-symmetrical variation | 75 | 25.3% | 46.0% | 0.06 MB |
| C52 | Evans gambit | 10 | 30.0% | 55.0% | 0.01 MB |
| C51 | Evans gambit declined | 1 | 0.0% | 100.0% | 0.00 MB |
| C51 | Evans gambit declined, 5.a4 | 5 | 20.0% | 50.0% | 0.01 MB |
| C51 | Evans gambit declined, Showalter variation | 1 | 0.0% | 0.0% | 0.00 MB |
| C51 | Evans gambit, 5...Be7 | 1 | 0.0% | 0.0% | 0.00 MB |
| C51 | Evans gambit, Cordel variation | 4 | 75.0% | 37.5% | 0.00 MB |
| C51 | Evans gambit, Goering attack | 1 | 0.0% | 0.0% | 0.00 MB |
| C52 | Evans gambit, Lasker defence | 2 | 0.0% | 0.0% | 0.00 MB |
| C51 | Evans gambit, Morphy attack | 5 | 40.0% | 20.0% | 0.00 MB |
| C51 | Evans gambit, Paulsen variation | 9 | 11.1% | 72.2% | 0.01 MB |
| C52 | Evans gambit, Richardson attack | 3 | 33.3% | 16.7% | 0.00 MB |
| C51 | Evans gambit, Stone-Ware variation | 2 | 50.0% | 75.0% | 0.00 MB |
| C52 | Evans gambit, compromised defence | 4 | 25.0% | 62.5% | 0.00 MB |
| C52 | Evans gambit, compromised defence, Paulsen variation | 9 | 55.6% | 50.0% | 0.01 MB |
| C51 | Evans gambit, normal variation | 1 | 0.0% | 0.0% | 0.00 MB |
| C49 | Four knights | 6 | 50.0% | 75.0% | 0.00 MB |
| C46 | Four knights game | 70 | 48.6% | 51.4% | 0.05 MB |
| C48 | Four knights, Bardeleben variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C47 | Four knights, Belgrade gambit | 4 | 50.0% | 50.0% | 0.00 MB |
| C46 | Four knights, Gunsberg variation | 7 | 57.1% | 42.9% | 0.01 MB |
| C46 | Four knights, Italian variation | 23 | 30.4% | 50.0% | 0.02 MB |
| C49 | Four knights, Nimzovich (Paulsen) variation | 4 | 100.0% | 50.0% | 0.00 MB |
| C48 | Four knights, Ranken variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C48 | Four knights, Rubinstein counter-gambit | 150 | 39.3% | 57.0% | 0.10 MB |
| C48 | Four knights, Rubinstein counter-gambit, Bogolyubov variation | 2 | 0.0% | 50.0% | 0.00 MB |
| C48 | Four knights, Rubinstein counter-gambit, Henneberger variation | 4 | 50.0% | 50.0% | 0.00 MB |
| C48 | Four knights, Rubinstein counter-gambit, exchange variation | 11 | 81.8% | 59.1% | 0.01 MB |
| C47 | Four knights, Scotch variation | 4 | 50.0% | 50.0% | 0.00 MB |
| C47 | Four knights, Scotch, 4...exd4 | 47 | 48.9% | 50.0% | 0.04 MB |
| C47 | Four knights, Scotch, Krause variation | 5 | 20.0% | 70.0% | 0.00 MB |
| C48 | Four knights, Spanish variation | 12 | 66.7% | 50.0% | 0.01 MB |
| C48 | Four knights, Spanish, classical defence | 9 | 11.1% | 50.0% | 0.01 MB |
| C48 | Four knights, Spielmann variation | 1 | 0.0% | 0.0% | 0.00 MB |
| C49 | Four knights, double Ruy Lopez | 5 | 20.0% | 90.0% | 0.01 MB |
| C49 | Four knights, symmetrical variation | 39 | 33.3% | 52.6% | 0.03 MB |
| C49 | Four knights, symmetrical, Capablanca variation | 3 | 33.3% | 50.0% | 0.00 MB |
| C49 | Four knights, symmetrical, Maroczy system | 14 | 35.7% | 53.6% | 0.01 MB |
| C49 | Four knights, symmetrical, Metger unpin | 71 | 38.0% | 54.2% | 0.05 MB |
| C49 | Four knights, symmetrical, Pillsbury variation | 3 | 0.0% | 33.3% | 0.00 MB |
| C00 | French defence | 136 | 38.2% | 53.7% | 0.09 MB |
| C11 | French defence | 51 | 27.5% | 47.1% | 0.04 MB |
| C00 | French defence, Steiner variation | 125 | 44.8% | 50.4% | 0.09 MB |
| C00 | French, Alapin variation | 2 | 100.0% | 50.0% | 0.00 MB |
| C13 | French, Albin-Alekhine-Chatard attack | 5 | 40.0% | 40.0% | 0.00 MB |
| C13 | French, Albin-Alekhine-Chatard attack, Spielmann variation | 2 | 0.0% | 100.0% | 0.00 MB |
| C11 | French, Burn variation | 753 | 36.7% | 56.2% | 0.45 MB |
| C00 | French, Chigorin variation | 103 | 38.8% | 53.4% | 0.07 MB |
| C10 | French, Fort Knox variation | 53 | 35.8% | 50.0% | 0.04 MB |
| C10 | French, Frere (Becker) variation | 6 | 16.7% | 75.0% | 0.00 MB |
| C11 | French, Henneberger variation | 8 | 37.5% | 56.3% | 0.01 MB |
| C00 | French, King's Indian attack | 150 | 32.7% | 51.7% | 0.10 MB |
| C00 | French, Labourdonnais variation | 114 | 32.5% | 42.5% | 0.07 MB |
| C12 | French, MacCutcheon variation | 27 | 40.7% | 50.0% | 0.02 MB |
| C12 | French, MacCutcheon, Chigorin variation | 1 | 0.0% | 0.0% | 0.00 MB |
| C12 | French, MacCutcheon, Dr. Olland (Dutch) variation | 4 | 0.0% | 100.0% | 0.00 MB |
| C12 | French, MacCutcheon, Grigoriev variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C12 | French, MacCutcheon, Janowski variation | 13 | 38.5% | 65.4% | 0.01 MB |
| C12 | French, MacCutcheon, Lasker variation | 54 | 25.9% | 48.1% | 0.04 MB |
| C12 | French, MacCutcheon, Lasker variation, 8...g6 | 94 | 29.8% | 53.2% | 0.06 MB |
| C12 | French, MacCutcheon, advance variation | 10 | 30.0% | 25.0% | 0.01 MB |
| C10 | French, Paulsen variation | 155 | 29.0% | 56.5% | 0.10 MB |
| C00 | French, Pelikan variation | 31 | 35.5% | 53.2% | 0.03 MB |
| C00 | French, Reti (Spielmann) variation | 8 | 50.0% | 50.0% | 0.01 MB |
| C10 | French, Rubinstein variation | 179 | 44.7% | 57.0% | 0.13 MB |
| C00 | French, Schlechter variation | 78 | 42.3% | 46.8% | 0.06 MB |
| C00 | French, Steinitz attack | 3 | 0.0% | 33.3% | 0.00 MB |
| C11 | French, Steinitz variation | 119 | 33.6% | 56.3% | 0.08 MB |
| C11 | French, Steinitz, Boleslavsky variation | 309 | 34.0% | 56.5% | 0.20 MB |
| C11 | French, Steinitz, Gledhill attack | 1 | 100.0% | 50.0% | 0.00 MB |
| C11 | French, Swiss variation | 28 | 35.7% | 53.6% | 0.02 MB |
| C03 | French, Tarrasch | 200 | 41.0% | 58.5% | 0.15 MB |
| C05 | French, Tarrasch, Botvinnik variation | 3 | 33.3% | 50.0% | 0.00 MB |
| C07 | French, Tarrasch, Eliskases variation | 7 | 42.9% | 50.0% | 0.01 MB |
| C04 | French, Tarrasch, Guimard main line | 23 | 26.1% | 52.2% | 0.02 MB |
| C03 | French, Tarrasch, Guimard variation | 18 | 22.2% | 66.7% | 0.01 MB |
| C06 | French, Tarrasch, Leningrad variation | 4 | 25.0% | 87.5% | 0.00 MB |
| C05 | French, Tarrasch, closed variation | 122 | 34.4% | 57.4% | 0.08 MB |
| C06 | French, Tarrasch, closed variation, main line | 310 | 38.4% | 61.1% | 0.20 MB |
| C07 | French, Tarrasch, open variation | 466 | 46.8% | 51.9% | 0.31 MB |
| C09 | French, Tarrasch, open variation, main line | 229 | 52.0% | 57.9% | 0.16 MB |
| C08 | French, Tarrasch, open, 4.ed ed | 207 | 50.2% | 54.6% | 0.14 MB |
| C00 | French, Two knights variation | 26 | 38.5% | 50.0% | 0.02 MB |
| C15 | French, Winawer (Nimzovich) variation | 49 | 38.8% | 54.1% | 0.04 MB |
| C15 | French, Winawer, Alekhine (Maroczy) gambit | 24 | 37.5% | 56.3% | 0.02 MB |
| C15 | French, Winawer, Alekhine gambit, Kan variation | 17 | 64.7% | 50.0% | 0.02 MB |
| C16 | French, Winawer, Petrosian variation | 20 | 30.0% | 70.0% | 0.02 MB |
| C16 | French, Winawer, advance variation | 107 | 29.9% | 64.5% | 0.07 MB |
| C17 | French, Winawer, advance variation | 17 | 41.2% | 67.6% | 0.01 MB |
| C18 | French, Winawer, advance variation | 27 | 25.9% | 64.8% | 0.02 MB |
| C17 | French, Winawer, advance, 5.a3 | 55 | 23.6% | 66.4% | 0.03 MB |
| C19 | French, Winawer, advance, 6...Ne7 | 29 | 48.3% | 51.7% | 0.02 MB |
| C17 | French, Winawer, advance, Bogolyubov variation | 114 | 28.1% | 53.5% | 0.07 MB |
| C17 | French, Winawer, advance, Russian variation | 10 | 40.0% | 40.0% | 0.01 MB |
| C19 | French, Winawer, advance, Smyslov variation | 30 | 23.3% | 78.3% | 0.02 MB |
| C19 | French, Winawer, advance, poisoned pawn variation | 661 | 31.3% | 58.8% | 0.42 MB |
| C19 | French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation | 1 | 0.0% | 0.0% | 0.00 MB |
| C19 | French, Winawer, advance, poisoned pawn, Konstantinopolsky variation | 106 | 17.9% | 64.6% | 0.06 MB |
| C19 | French, Winawer, advance, positional main line | 285 | 28.4% | 54.9% | 0.18 MB |
| C18 | French, Winawer, classical variation | 41 | 24.4% | 51.2% | 0.03 MB |
| C00 | French, Wing gambit | 4 | 25.0% | 62.5% | 0.00 MB |
| C02 | French, advance variation | 181 | 26.5% | 54.7% | 0.13 MB |
| C02 | French, advance, Euwe variation | 145 | 35.2% | 59.7% | 0.10 MB |
| C02 | French, advance, Milner-Barry gambit | 8 | 75.0% | 62.5% | 0.01 MB |
| C02 | French, advance, Nimzovich system | 8 | 50.0% | 37.5% | 0.01 MB |
| C02 | French, advance, Paulsen attack | 117 | 29.9% | 52.6% | 0.08 MB |
| C02 | French, advance, Steinitz variation | 62 | 27.4% | 36.3% | 0.04 MB |
| C02 | French, advance, Wade variation | 30 | 20.0% | 63.3% | 0.02 MB |
| C13 | French, classical | 5 | 60.0% | 30.0% | 0.00 MB |
| C14 | French, classical variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C14 | French, classical, Alapin variation | 2 | 0.0% | 100.0% | 0.00 MB |
| C13 | French, classical, Anderssen variation | 4 | 0.0% | 50.0% | 0.00 MB |
| C13 | French, classical, Anderssen-Richter variation | 3 | 0.0% | 66.7% | 0.00 MB |
| C13 | French, classical, Frankfurt variation | 4 | 25.0% | 87.5% | 0.00 MB |
| C14 | French, classical, Rubinstein variation | 2 | 50.0% | 75.0% | 0.00 MB |
| C14 |