CCRL 40/40
Downloads and Statistics
January 3, 2009
|
Testing summary:
Total: 159'438 gamesplayed by 579 programs 22978 CPU days (X2 4600+) White wins: 57'641 (36.2%) Black wins: 43'113 (27.0%) Draws: 58'684 (36.8%) White score: 54.6% |
CCRL 40/40
Downloads and Statistics
January 3, 2009
|
Testing summary:
Total: 159'438 gamesplayed by 579 programs 22978 CPU days (X2 4600+) White wins: 57'641 (36.2%) Black wins: 43'113 (27.0%) Draws: 58'684 (36.8%) White score: 54.6% |
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 | 11 | 9.1% | 40.9% | 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 | 4 | 50.0% | 50.0% | 0.00 MB |
| B02 | Alekhine's defence, Saemisch attack | 5 | 60.0% | 50.0% | 0.00 MB |
| B02 | Alekhine's defence, Scandinavian variation | 9 | 11.1% | 50.0% | 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 | 54 | 31.5% | 52.8% | 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 | 8 | 37.5% | 56.3% | 0.01 MB |
| B03 | Alekhine's defence, four pawns attack, 7.Be3 | 14 | 42.9% | 78.6% | 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 | 17 | 41.2% | 67.6% | 0.01 MB |
| B05 | Alekhine's defence, modern variation, 4...Bg4 | 93 | 26.9% | 66.1% | 0.07 MB |
| B05 | Alekhine's defence, modern, Alekhine variation | 1 | 100.0% | 50.0% | 0.00 MB |
| B05 | Alekhine's defence, modern, Flohr variation | 12 | 33.3% | 66.7% | 0.01 MB |
| B04 | Alekhine's defence, modern, Keres variation | 13 | 53.8% | 65.4% | 0.01 MB |
| B04 | Alekhine's defence, modern, Larsen variation | 35 | 42.9% | 64.3% | 0.03 MB |
| B04 | Alekhine's defence, modern, Schmid variation | 12 | 33.3% | 58.3% | 0.01 MB |
| B04 | Alekhine's defence, modern, fianchetto variation | 28 | 32.1% | 66.1% | 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 | 7 | 42.9% | 35.7% | 0.01 MB |
| A00 | Anti-Borg (Desprez) opening | 1 | 0.0% | 0.0% | 0.00 MB |
| A40 | Beefeater defence | 5 | 20.0% | 90.0% | 0.00 MB |
| A57 | Benko gambit | 69 | 29.0% | 62.3% | 0.06 MB |
| A59 | Benko gambit | 7 | 14.3% | 35.7% | 0.01 MB |
| A58 | Benko gambit accepted | 107 | 40.2% | 53.7% | 0.07 MB |
| A57 | Benko gambit half accepted | 126 | 31.0% | 51.2% | 0.09 MB |
| A59 | Benko gambit, 7.e4 | 1 | 100.0% | 50.0% | 0.00 MB |
| A59 | Benko gambit, Ne2 variation | 2 | 0.0% | 50.0% | 0.00 MB |
| A57 | Benko gambit, Zaitsev system | 11 | 27.3% | 22.7% | 0.01 MB |
| A58 | Benko gambit, fianchetto variation | 31 | 41.9% | 62.9% | 0.02 MB |
| A59 | Benko gambit, main line | 26 | 30.8% | 65.4% | 0.02 MB |
| A00 | Benko's opening | 345 | 35.7% | 52.0% | 0.23 MB |
| A00 | Benko's opening, reversed Alekhine | 9 | 44.4% | 44.4% | 0.01 MB |
| A56 | Benoni defence | 111 | 27.9% | 59.9% | 0.08 MB |
| A60 | Benoni defence | 15 | 33.3% | 63.3% | 0.01 MB |
| A61 | Benoni defence | 92 | 19.6% | 70.7% | 0.06 MB |
| A56 | Benoni defence, Hromodka system | 32 | 25.0% | 75.0% | 0.03 MB |
| A65 | Benoni, 6.e4 | 3 | 0.0% | 33.3% | 0.00 MB |
| A61 | Benoni, Nimzovich (knight's tour) variation | 90 | 20.0% | 65.6% | 0.06 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 | 11 | 36.4% | 54.5% | 0.01 MB |
| A75 | Benoni, classical with ...a6 and 10...Bg4 | 17 | 23.5% | 64.7% | 0.01 MB |
| A70 | Benoni, classical with e4 and Nf3 | 124 | 32.3% | 55.6% | 0.09 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 | 20 | 40.0% | 50.0% | 0.02 MB |
| A71 | Benoni, classical, 8.Bg5 | 25 | 12.0% | 50.0% | 0.02 MB |
| A76 | Benoni, classical, 9...Re8 | 11 | 18.2% | 36.4% | 0.01 MB |
| A77 | Benoni, classical, 9...Re8, 10.Nd2 | 26 | 19.2% | 63.5% | 0.02 MB |
| A74 | Benoni, classical, 9...a6, 10.a4 | 1 | 0.0% | 100.0% | 0.00 MB |
| A73 | Benoni, classical, 9.O-O | 10 | 10.0% | 75.0% | 0.01 MB |
| A61 | Benoni, fianchetto variation | 2 | 0.0% | 100.0% | 0.00 MB |
| A62 | Benoni, fianchetto variation | 62 | 29.0% | 59.7% | 0.05 MB |
| A64 | Benoni, fianchetto, 11...Re8 | 30 | 23.3% | 35.0% | 0.02 MB |
| A63 | Benoni, fianchetto, 9...Nbd7 | 9 | 22.2% | 66.7% | 0.01 MB |
| A69 | Benoni, four pawns attack, main line | 13 | 53.8% | 57.7% | 0.01 MB |
| A02 | Bird's opening | 7 | 28.6% | 57.1% | 0.01 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 | 70 | 34.3% | 57.1% | 0.05 MB |
| C24 | Bishop's opening, Berlin defence | 100 | 36.0% | 57.0% | 0.08 MB |
| C23 | Bishop's opening, Calabrese counter-gambit, Jaenisch variation | 3 | 0.0% | 100.0% | 0.00 MB |
| C23 | Bishop's opening, Classical variation | 22 | 31.8% | 47.7% | 0.01 MB |
| C23 | Bishop's opening, Lisitsyn variation | 1 | 0.0% | 0.0% | 0.00 MB |
| C23 | Bishop's opening, Philidor counter-attack | 27 | 59.3% | 66.7% | 0.02 MB |
| C23 | Bishop's opening, Philidor variation | 5 | 60.0% | 50.0% | 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 | 11 | 18.2% | 45.5% | 0.01 MB |
| E10 | Blumenfeld counter-gambit | 9 | 11.1% | 61.1% | 0.01 MB |
| E10 | Blumenfeld counter-gambit accepted | 10 | 20.0% | 40.0% | 0.01 MB |
| E10 | Blumenfeld counter-gambit, Dus-Chotimursky variation | 28 | 39.3% | 51.8% | 0.02 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 | 3 | 66.7% | 33.3% | 0.00 MB |
| E11 | Bogo-Indian defence | 173 | 34.1% | 55.8% | 0.12 MB |
| E11 | Bogo-Indian defence, Gruenfeld variation | 218 | 30.3% | 54.1% | 0.16 MB |
| E11 | Bogo-Indian defence, Monticelli trap | 2 | 50.0% | 25.0% | 0.00 MB |
| E11 | Bogo-Indian defence, Nimzovich variation | 274 | 32.8% | 54.7% | 0.19 MB |
| A52 | Budapest defence | 3 | 66.7% | 66.7% | 0.00 MB |
| A51 | Budapest defence declined | 2 | 0.0% | 50.0% | 0.00 MB |
| A52 | Budapest, Adler variation | 20 | 45.0% | 47.5% | 0.02 MB |
| A52 | Budapest, Alekhine variation | 2 | 0.0% | 50.0% | 0.00 MB |
| A52 | Budapest, Alekhine, Abonyi variation | 5 | 60.0% | 50.0% | 0.01 MB |
| A51 | Budapest, Fajarowicz variation | 7 | 0.0% | 71.4% | 0.01 MB |
| A52 | Budapest, Rubinstein variation | 115 | 43.5% | 66.1% | 0.08 MB |
| A45 | Canard opening | 11 | 36.4% | 27.3% | 0.01 MB |
| B10 | Caro-Kann defence | 395 | 34.2% | 57.8% | 0.26 MB |
| B12 | Caro-Kann defence | 68 | 33.8% | 56.6% | 0.05 MB |
| B15 | Caro-Kann defence | 43 | 27.9% | 53.5% | 0.03 MB |
| B12 | Caro-Kann, 3.Nd2 | 53 | 37.7% | 50.9% | 0.04 MB |
| B15 | Caro-Kann, Alekhine gambit | 3 | 33.3% | 83.3% | 0.00 MB |
| B16 | Caro-Kann, Bronstein-Larsen variation | 33 | 27.3% | 65.2% | 0.03 MB |
| B12 | Caro-Kann, Edinburgh variation | 4 | 50.0% | 25.0% | 0.00 MB |
| B15 | Caro-Kann, Forgacs variation | 45 | 33.3% | 50.0% | 0.03 MB |
| B10 | Caro-Kann, Goldman (Spielmann) variation | 4 | 25.0% | 37.5% | 0.00 MB |
| B15 | Caro-Kann, Gurgenidze counter-attack | 3 | 33.3% | 50.0% | 0.00 MB |
| B15 | Caro-Kann, Gurgenidze system | 78 | 34.6% | 55.8% | 0.05 MB |
| B13 | Caro-Kann, Panov-Botvinnik attack | 103 | 51.5% | 51.9% | 0.08 MB |
| B14 | Caro-Kann, Panov-Botvinnik attack, 5...e6 | 445 | 44.3% | 54.0% | 0.29 MB |
| B14 | Caro-Kann, Panov-Botvinnik attack, 5...g6 | 57 | 43.9% | 51.8% | 0.04 MB |
| B13 | Caro-Kann, Panov-Botvinnik, Czerniak variation | 2 | 50.0% | 25.0% | 0.00 MB |
| B13 | Caro-Kann, Panov-Botvinnik, Gunderam attack | 3 | 0.0% | 33.3% | 0.00 MB |
| B13 | Caro-Kann, Panov-Botvinnik, Herzog defence | 3 | 33.3% | 50.0% | 0.00 MB |
| B13 | Caro-Kann, Panov-Botvinnik, normal variation | 12 | 25.0% | 62.5% | 0.01 MB |
| B15 | Caro-Kann, Rasa-Studier gambit | 4 | 50.0% | 25.0% | 0.00 MB |
| B17 | Caro-Kann, Steinitz variation | 594 | 36.7% | 54.2% | 0.39 MB |
| B15 | Caro-Kann, Tartakower (Nimzovich) variation | 27 | 33.3% | 61.1% | 0.03 MB |
| B12 | Caro-Kann, Tartakower (fantasy) variation | 119 | 40.3% | 56.3% | 0.08 MB |
| B10 | Caro-Kann, Two knights variation | 57 | 43.9% | 60.5% | 0.04 MB |
| B11 | Caro-Kann, Two knights, 3...Bg4 | 72 | 34.7% | 54.9% | 0.05 MB |
| B12 | Caro-Kann, advance variation | 1044 | 33.4% | 57.1% | 0.65 MB |
| B12 | Caro-Kann, advance, Short variation | 4 | 50.0% | 75.0% | 0.00 MB |
| B10 | Caro-Kann, anti-Caro-Kann defence | 160 | 31.3% | 58.8% | 0.11 MB |
| B10 | Caro-Kann, anti-anti-Caro-Kann defence | 135 | 41.5% | 52.6% | 0.09 MB |
| B18 | Caro-Kann, classical variation | 106 | 45.3% | 51.9% | 0.08 MB |
| B18 | Caro-Kann, classical, 6.h4 | 69 | 33.3% | 54.3% | 0.05 MB |
| B19 | Caro-Kann, classical, 7...Nd7 | 16 | 56.3% | 53.1% | 0.01 MB |
| B18 | Caro-Kann, classical, Flohr variation | 4 | 0.0% | 75.0% | 0.01 MB |
| B18 | Caro-Kann, classical, Maroczy attack | 2 | 50.0% | 25.0% | 0.00 MB |
| B19 | Caro-Kann, classical, Spassky variation | 879 | 38.9% | 55.2% | 0.53 MB |
| B10 | Caro-Kann, closed (Breyer) variation | 46 | 34.8% | 50.0% | 0.04 MB |
| B13 | Caro-Kann, exchange variation | 111 | 46.8% | 50.5% | 0.08 MB |
| B13 | Caro-Kann, exchange, Rubinstein variation | 21 | 33.3% | 40.5% | 0.02 MB |
| E00 | Catalan opening | 547 | 36.4% | 54.6% | 0.37 MB |
| E01 | Catalan, closed | 35 | 37.1% | 55.7% | 0.03 MB |
| E06 | Catalan, closed, 5.Nf3 | 534 | 45.3% | 53.0% | 0.37 MB |
| E07 | Catalan, closed, 6...Nbd7 | 17 | 35.3% | 35.3% | 0.01 MB |
| E08 | Catalan, closed, 7.Qc2 | 10 | 20.0% | 50.0% | 0.01 MB |
| E07 | Catalan, closed, Botvinnik variation | 8 | 25.0% | 50.0% | 0.01 MB |
| E08 | Catalan, closed, Qc2 & b3 | 36 | 27.8% | 52.8% | 0.03 MB |
| E09 | Catalan, closed, main line | 32 | 18.8% | 75.0% | 0.03 MB |
| E04 | Catalan, open, 5.Nf3 | 748 | 40.1% | 51.6% | 0.47 MB |
| E02 | Catalan, open, 5.Qa4 | 14 | 35.7% | 75.0% | 0.01 MB |
| E03 | Catalan, open, 5.Qa4 Nbd7, 6.Qxc4 | 1 | 100.0% | 50.0% | 0.00 MB |
| E05 | Catalan, open, classical line | 26 | 26.9% | 51.9% | 0.02 MB |
| C21 | Centre game | 56 | 44.6% | 70.5% | 0.04 MB |
| C22 | Centre game | 3 | 33.3% | 16.7% | 0.00 MB |
| C22 | Centre game, Berger variation | 62 | 25.8% | 69.4% | 0.04 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 | 12 | 50.0% | 66.7% | 0.01 MB |
| A56 | Czech Benoni defence | 26 | 26.9% | 75.0% | 0.02 MB |
| A56 | Czech Benoni, King's Indian system | 5 | 20.0% | 30.0% | 0.01 MB |
| C21 | Danish gambit | 2 | 50.0% | 75.0% | 0.00 MB |
| E10 | Doery defence | 8 | 25.0% | 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 | 109 | 34.9% | 61.5% | 0.08 MB |
| A81 | Dutch defence | 307 | 35.8% | 54.4% | 0.21 MB |
| A84 | Dutch defence | 80 | 38.8% | 58.1% | 0.06 MB |
| A90 | Dutch defence | 79 | 31.6% | 61.4% | 0.06 MB |
| A91 | Dutch defence | 6 | 16.7% | 75.0% | 0.01 MB |
| A92 | Dutch defence | 4 | 50.0% | 75.0% | 0.00 MB |
| A92 | Dutch defence, Alekhine variation | 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 | 6 | 33.3% | 66.7% | 0.01 MB |
| A84 | Dutch defence, Rubinstein variation | 35 | 37.1% | 58.6% | 0.03 MB |
| A85 | Dutch with c4 & Nc3 | 17 | 29.4% | 55.9% | 0.01 MB |
| A86 | Dutch with c4 & g3 | 5 | 40.0% | 40.0% | 0.01 MB |
| A80 | Dutch, 2.Bg5 variation | 23 | 26.1% | 56.5% | 0.02 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 | 14 | 42.9% | 64.3% | 0.01 MB |
| A97 | Dutch, Ilyin-Genevsky, Winter variation | 8 | 62.5% | 56.3% | 0.01 MB |
| A86 | Dutch, Leningrad variation | 9 | 66.7% | 55.6% | 0.01 MB |
| A87 | Dutch, Leningrad, main variation | 24 | 58.3% | 58.3% | 0.02 MB |
| A89 | Dutch, Leningrad, main variation with Nc6 | 42 | 31.0% | 67.9% | 0.03 MB |
| A88 | Dutch, Leningrad, main variation with c6 | 62 | 32.3% | 64.5% | 0.05 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 | 3 | 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 | 19 | 36.8% | 65.8% | 0.02 MB |
| A92 | Dutch, stonewall variation | 5 | 60.0% | 70.0% | 0.01 MB |
| A94 | Dutch, stonewall with Ba3 | 6 | 66.7% | 66.7% | 0.01 MB |
| A95 | Dutch, stonewall with Nc3 | 10 | 20.0% | 40.0% | 0.01 MB |
| A93 | Dutch, stonewall, Botwinnik variation | 13 | 15.4% | 61.5% | 0.01 MB |
| A90 | Dutch-Indian, Alekhine variation | 8 | 25.0% | 50.0% | 0.01 MB |
| E10 | Dzindzikhashvili defence | 9 | 77.8% | 61.1% | 0.01 MB |
| A10 | English opening | 388 | 42.3% | 53.1% | 0.25 MB |
| A13 | English opening | 442 | 34.8% | 50.2% | 0.31 MB |
| A15 | English opening | 1063 | 39.7% | 53.5% | 0.70 MB |
| A16 | English opening | 172 | 26.2% | 49.1% | 0.12 MB |
| A17 | English opening | 41 | 43.9% | 53.7% | 0.03 MB |
| A20 | English opening | 1114 | 38.3% | 54.9% | 0.71 MB |
| A21 | English opening | 285 | 31.2% | 58.8% | 0.19 MB |
| A22 | English opening | 121 | 30.6% | 56.6% | 0.08 MB |
| A13 | English opening, Agincourt variation | 156 | 44.9% | 53.8% | 0.13 MB |
| A15 | English, 1...Nf6 (Anglo-Indian defense) | 178 | 32.6% | 59.0% | 0.12 MB |
| A10 | English, Adorjan defence | 18 | 44.4% | 61.1% | 0.02 MB |
| A10 | English, Anglo-Dutch defense | 47 | 38.3% | 46.8% | 0.04 MB |
| A16 | English, Anglo-Gruenfeld defense | 10 | 30.0% | 55.0% | 0.01 MB |
| A16 | English, Anglo-Gruenfeld, Czech defense | 9 | 55.6% | 50.0% | 0.01 MB |
| A16 | English, Anglo-Gruenfeld, Smyslov defense | 8 | 62.5% | 68.8% | 0.01 MB |
| A12 | English, Bled variation | 6 | 33.3% | 66.7% | 0.01 MB |
| A26 | English, Botvinnik system | 58 | 32.8% | 47.4% | 0.04 MB |
| A28 | English, Bradley Beach variation | 17 | 29.4% | 44.1% | 0.01 MB |
| A24 | English, Bremen system with ...g6 | 11 | 63.6% | 59.1% | 0.01 MB |
| A23 | English, Bremen system, Keres variation | 45 | 26.7% | 60.0% | 0.03 MB |
| A22 | English, Bremen, Smyslov system | 267 | 36.3% | 46.3% | 0.18 MB |
| A22 | English, Bremen, reverse dragon | 132 | 40.9% | 48.5% | 0.10 MB |
| A12 | English, Capablanca's variation | 12 | 50.0% | 41.7% | 0.01 MB |
| A22 | English, Carls' Bremen system | 46 | 32.6% | 62.0% | 0.03 MB |
| A11 | English, Caro-Kann defensive system | 148 | 43.9% | 56.4% | 0.09 MB |
| A12 | English, Caro-Kann defensive system | 12 | 50.0% | 50.0% | 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 | 4 | 50.0% | 25.0% | 0.00 MB |
| A21 | English, Kramnik-Shirov counterattack | 99 | 33.3% | 52.0% | 0.08 MB |
| A13 | English, Kurajica defence | 6 | 33.3% | 50.0% | 0.01 MB |
| A12 | English, London defensive system | 16 | 31.3% | 34.4% | 0.01 MB |
| A18 | English, Mikenas-Carls variation | 1 | 0.0% | 100.0% | 0.00 MB |
| A18 | English, Mikenas-Carls, Flohr variation | 11 | 18.2% | 54.5% | 0.01 MB |
| A19 | English, Mikenas-Carls, Sicilian variation | 21 | 52.4% | 50.0% | 0.02 MB |
| A28 | English, Nenarokov variation | 15 | 53.3% | 66.7% | 0.01 MB |
| A13 | English, Neo-Catalan | 34 | 44.1% | 63.2% | 0.03 MB |
| A13 | English, Neo-Catalan accepted | 72 | 45.8% | 54.9% | 0.06 MB |
| A14 | English, Neo-Catalan declined | 57 | 43.9% | 46.5% | 0.04 MB |
| A12 | English, New York (London) defensive system | 3 | 66.7% | 33.3% | 0.00 MB |
| A17 | English, Nimzo-English opening | 167 | 33.5% | 61.1% | 0.12 MB |
| A20 | English, Nimzovich variation | 7 | 14.3% | 92.9% | 0.01 MB |
| A20 | English, Nimzovich, Flohr variation | 32 | 31.3% | 40.6% | 0.03 MB |
| A17 | English, Queens Indian formation | 15 | 26.7% | 53.3% | 0.02 MB |
| A17 | English, Queens Indian, Romanishin variation | 4 | 50.0% | 50.0% | 0.00 MB |
| A13 | English, Romanishin gambit | 9 | 66.7% | 55.6% | 0.01 MB |
| A25 | English, Sicilian reversed | 106 | 32.1% | 46.2% | 0.07 MB |
| A21 | English, Smyslov defence | 6 | 16.7% | 25.0% | 0.00 MB |
| A14 | English, Symmetrical, Keres defence | 137 | 48.9% | 55.8% | 0.10 MB |
| A12 | English, Torre defensive system | 15 | 53.3% | 46.7% | 0.01 MB |
| A21 | English, Troeger defence | 21 | 23.8% | 50.0% | 0.02 MB |
| A13 | English, Wimpey system | 14 | 42.9% | 64.3% | 0.01 MB |
| A25 | English, closed system | 196 | 36.7% | 56.6% | 0.14 MB |
| A26 | English, closed system | 52 | 28.8% | 58.7% | 0.04 MB |
| A25 | English, closed system (without ...d6) | 42 | 31.0% | 53.6% | 0.03 MB |
| A25 | English, closed, 5.Rb1 | 72 | 43.1% | 53.5% | 0.06 MB |
| A25 | English, closed, 5.Rb1 Taimanov variation | 2 | 0.0% | 50.0% | 0.00 MB |
| A25 | English, closed, Hort variation | 2 | 50.0% | 25.0% | 0.00 MB |
| A25 | English, closed, Taimanov variation | 4 | 25.0% | 87.5% | 0.00 MB |
| A28 | English, four knights system | 64 | 42.2% | 49.2% | 0.05 MB |
| A28 | English, four knights, 4.e3 | 242 | 34.7% | 53.7% | 0.16 MB |
| A28 | English, four knights, Capablanca variation | 58 | 43.1% | 50.9% | 0.05 MB |
| A28 | English, four knights, Marini variation | 87 | 41.4% | 47.1% | 0.06 MB |
| A28 | English, four knights, Nimzovich variation | 38 | 28.9% | 38.2% | 0.04 MB |
| A28 | English, four knights, Romanishin variation | 111 | 49.5% | 56.3% | 0.08 MB |
| A28 | English, four knights, Stean variation | 29 | 41.4% | 58.6% | 0.02 MB |
| A29 | English, four knights, kingside fianchetto | 1690 | 38.1% | 52.3% | 1.05 MB |
| A30 | English, symmetrical variation | 899 | 34.9% | 56.0% | 0.58 MB |
| A32 | English, symmetrical variation | 27 | 33.3% | 61.1% | 0.02 MB |
| A33 | English, symmetrical variation | 223 | 41.7% | 55.8% | 0.16 MB |
| A34 | English, symmetrical variation | 268 | 33.2% | 54.3% | 0.18 MB |
| A35 | English, symmetrical variation | 43 | 25.6% | 52.3% | 0.04 MB |
| A36 | English, symmetrical variation | 29 | 20.7% | 69.0% | 0.02 MB |
| A37 | English, symmetrical variation | 55 | 23.6% | 48.2% | 0.04 MB |
| A38 | English, symmetrical variation | 170 | 40.6% | 53.2% | 0.12 MB |
| A31 | English, symmetrical, Benoni formation | 161 | 41.0% | 58.4% | 0.13 MB |
| A36 | English, symmetrical, Botvinnik system | 10 | 40.0% | 50.0% | 0.01 MB |
| A36 | English, symmetrical, Botvinnik system reversed | 8 | 0.0% | 62.5% | 0.01 MB |
| A37 | English, symmetrical, Botvinnik system reversed | 128 | 30.5% | 52.0% | 0.09 MB |
| A33 | English, symmetrical, Geller variation | 159 | 30.2% | 59.1% | 0.11 MB |
| A34 | English, symmetrical, Rubinstein system | 26 | 38.5% | 50.0% | 0.02 MB |
| A35 | English, symmetrical, four knights system | 366 | 39.3% | 52.7% | 0.25 MB |
| A30 | English, symmetrical, hedgehog system | 644 | 40.2% | 56.6% | 0.42 MB |
| A30 | English, symmetrical, hedgehog, flexible formation | 89 | 48.3% | 53.4% | 0.06 MB |
| A38 | English, symmetrical, main line with b3 | 1 | 100.0% | 50.0% | 0.00 MB |
| A38 | English, symmetrical, main line with d3 | 13 | 38.5% | 42.3% | 0.01 MB |
| A39 | English, symmetrical, main line with d4 | 170 | 47.6% | 57.4% | 0.11 MB |
| A34 | English, symmetrical, three knights system | 136 | 41.2% | 58.8% | 0.10 MB |
| A27 | English, three knights system | 50 | 30.0% | 59.0% | 0.04 MB |
| A36 | English, ultra-symmetrical variation | 128 | 28.9% | 48.8% | 0.10 MB |
| C52 | Evans gambit | 14 | 28.6% | 42.9% | 0.01 MB |
| C51 | Evans gambit declined | 1 | 0.0% | 100.0% | 0.00 MB |
| C51 | Evans gambit declined, 5.a4 | 78 | 38.5% | 43.6% | 0.04 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 | 2 | 0.0% | 50.0% | 0.00 MB |
| C52 | Evans gambit, Lasker defence | 5 | 20.0% | 30.0% | 0.01 MB |
| C51 | Evans gambit, Morphy attack | 5 | 40.0% | 20.0% | 0.00 MB |
| C51 | Evans gambit, Paulsen variation | 13 | 23.1% | 73.1% | 0.01 MB |
| C52 | Evans gambit, Richardson attack | 3 | 33.3% | 16.7% | 0.00 MB |
| C51 | Evans gambit, Stone-Ware variation | 3 | 66.7% | 66.7% | 0.00 MB |
| C52 | Evans gambit, Tartakower attack | 1 | 0.0% | 0.0% | 0.00 MB |
| C52 | Evans gambit, compromised defence | 4 | 25.0% | 62.5% | 0.00 MB |
| C52 | Evans gambit, compromised defence, Paulsen variation | 10 | 60.0% | 50.0% | 0.01 MB |
| C51 | Evans gambit, normal variation | 3 | 0.0% | 33.3% | 0.00 MB |
| C49 | Four knights | 10 | 60.0% | 70.0% | 0.01 MB |
| C46 | Four knights game | 104 | 50.0% | 52.9% | 0.08 MB |
| C48 | Four knights, Bardeleben variation | 1 | 100.0% | 50.0% | 0.00 MB |
| C47 | Four knights, Belgrade gambit | 4 | 75.0% | 62.5% | 0.00 MB |
| C46 | Four knights, Gunsberg variation | 8 | 50.0% | 37.5% | 0.01 MB |
| C46 | Four knights, Italian variation | 30 | 33.3% | 46.7% | 0.03 MB |
| C49 | Four knights, Janowski variation | 1 | 0.0% | 0.0% | 0.00 MB |
| C49 | Four knights, Nimzovich (Paulsen) variation | 6 | 83.3% | 58.3% | 0.01 MB |
| C48 | Four knights, Ranken variation | 2 | 50.0% | 75.0% | 0.00 MB |
| C48 | Four knights, Rubinstein counter-gambit | 282 | 35.5% | 56.7% | 0.18 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 | 6 | 33.3% | 33.3% | 0.01 MB |
| C48 | Four knights, Rubinstein counter-gambit, exchange variation | 20 | 70.0% | 60.0% | 0.02 MB |
| C46 | Four knights, Schultze-Mueller gambit | 1 | 0.0% | 100.0% | 0.00 MB |
| C47 | Four knights, Scotch variation | 4 | 50.0% | 50.0% | 0.00 MB |
| C47 | Four knights, Scotch, 4...exd4 | 73 | 47.9% | 50.0% | 0.06 MB |
| C47 | Four knights, Scotch, Krause variation | 6 | 33.3% | 66.7% | 0.00 MB |
| C48 | Four knights, Spanish variation | 16 | 56.3% | 59.4% | 0.02 MB |
| C48 | Four knights, Spanish, classical defence | 11 | 9.1% | 40.9% | 0.01 MB |
| C48 | Four knights, Spielmann variation | 1 | 0.0% | 0.0% | 0.00 MB |
| C49 | Four knights, double Ruy Lopez | 7 | 28.6% | 85.7% | 0.01 MB |
| C49 | Four knights, symmetrical variation | 60 | 35.0% | 55.8% | 0.05 MB |
| C49 | Four knights, symmetrical, Capablanca variation | 6 | 50.0% | 58.3% | 0.01 MB |
| C49 | Four knights, symmetrical, Maroczy system | 19 | 42.1% | 52.6% | 0.02 MB |
| C49 | Four knights, symmetrical, Metger unpin | 119 | 35.3% | 55.5% | 0.09 MB |
| C49 | Four knights, symmetrical, Pillsbury variation | 7 | 28.6% | 28.6% | 0.01 MB |
| C00 | French defence | 143 | 36.4% | 55.9% | 0.10 MB |
| C11 | French defence | 67 | 29.9% | 50.7% | 0.05 MB |
| C00 | French defence, Steiner variation | 138 | 43.5% | 50.0% | 0.10 MB |
| C00 | French, Alapin variation | 2 | 100.0% | 50.0% | 0.00 MB |
| C13 | French, Albin-Alekhine-Chatard attack | 7 | 42.9% | 50.0% | 0.01 MB |
| C13 | French, Albin-Alekhine-Chatard attack, Breyer variation | 3 | 33.3% | 50.0% | 0.00 MB |
| C13 | French, Albin-Alekhine-Chatard attack, Spielmann variation | 2 | 0.0% | 100.0% | 0.00 MB |
| C13 | French, Albin-Alekhine-Chatard attack, Teichmann variation | 2 | 50.0% | 75.0% | 0.00 MB |
| C11 | French, Burn variation | 1035 | 37.5% | 55.6% | 0.61 MB |
| C00 | French, Chigorin variation | 123 | 36.6% | 53.3% | 0.09 MB |
| C10 | French, Fort Knox variation | 106 | 42.5% | 49.5% | 0.07 MB |
| C10 | French, Frere (Becker) variation | 5 | 0.0% | 80.0% | 0.00 MB |
| C11 | French, Henneberger variation | 8 | 25.0% | 62.5% | 0.01 MB |
| C00 | French, King's Indian attack | 255 | 34.1% | 49.6% | 0.19 MB |
| C00 | French, Labourdonnais variation | 131 | 32.8% | 41.6% | 0.08 MB |
| C12 | French, MacCutcheon variation | 34 | 41.2% | 50.0% | 0.03 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 | 16 | 43.8% | 65.6% | 0.01 MB |
| C12 | French, MacCutcheon, Lasker variation | 82 | 23.2% | 55.5% | 0.06 MB |
| C12 | French, MacCutcheon, Lasker variation, 8...g6 | 113 | 29.2% | 54.4% | 0.07 MB |
| C12 | French, MacCutcheon, advance variation | 10 | 30.0% | 25.0% | 0.01 MB |
| C10 | French, Paulsen variation | 198 | 30.3% | 54.5% | 0.13 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 | 244 | 42.2% | 55.5% | 0.17 MB |
| C00 | French, Schlechter variation | 85 | 42.4% | 44.7% | 0.06 MB |
| C00 | French, Steinitz attack | 3 | 0.0% | 33.3% | 0.00 MB |
| C11 | French, Steinitz variation | 151 | 35.8% | 57.6% | 0.11 MB |
| C11 | French, Steinitz, Boleslavsky variation | 488 | 33.0% | 56.7% | 0.30 MB |
| C11 | French, Steinitz, Gledhill attack | 1 | 100.0% | 50.0% | 0.00 MB |
| C11 | French, Swiss variation | 30 | 36.7% | 55.0% | 0.02 MB |
| C03 | French, Tarrasch | 308 | 42.5% | 57.3% | 0.22 MB |
| C05 | French, Tarrasch, Botvinnik variation | 6 | 33.3% | 66.7% | 0.00 MB |
| C07 | French, Tarrasch, Eliskases variation | 9 | 44.4% | 44.4% | 0.01 MB |
| C04 | French, Tarrasch, Guimard main line | 37 | 24.3% | 58.1% | 0.03 MB |
| C03 | French, Tarrasch, Guimard variation | 16 | 25.0% | 62.5% | 0.01 MB |
| C06 | French, Tarrasch, Leningrad variation | 4 | 25.0% | 87.5% | 0.00 MB |
| C05 | French, Tarrasch, closed variation | 176 | 35.2% | 55.7% | 0.12 MB |
| C06 | French, Tarrasch, closed variation, main line | 411 | 38.4% | 61.1% | 0.26 MB |
| C07 | French, Tarrasch, open variation | 639 | 47.1% | 50.9% | 0.43 MB |
| C09 | French, Tarrasch, open variation, main line | 310 | 50.6% | 56.3% | 0.21 MB |
| C08 | French, Tarrasch, open, 4.ed ed | 303 | 50.5% | 53.3% | 0.20 MB |
| C00 | French, Two knights variation | 25 | 36.0% | 50.0% | 0.02 MB |
| C15 | French, Winawer (Nimzovich) variation | 77 | 35.1% | 56.5% | 0.06 MB |
| C15 | French, Winawer, Alekhine (Maroczy) gambit | 30 | 33.3% | 60.0% | 0.03 MB |
| C15 | French, Winawer, Alekhine gambit, Kan variation | 24 | 58.3% | 45.8% | 0.02 MB |
| C16 | French, Winawer, Petrosian variation | 25 | 24.0% | 72.0% | 0.02 MB |
| C16 | French, Winawer, advance variation | 138 | 32.6% | 63.4% | 0.09 MB |
| C17 | French, Winawer, advance variation | 20 | 40.0% | 70.0% | 0.02 MB |
| C18 | French, Winawer, advance variation | 42 | 28.6% | 69.0% | 0.03 MB |
| C17 | French, Winawer, advance, 5.a3 | 77 | 27.3% | 64.3% | 0.05 MB |
| C19 | French, Winawer, advance, 6...Ne7 | 44 | 38.6% | 55.7% | 0.03 MB |
| C17 | French, Winawer, advance, Bogolyubov variation | 116 | 30.2% | 53.9% | 0.08 MB |
| C17 | French, Winawer, advance, Russian variation | 12 | 41.7% | 37.5% | 0.01 MB |
| C19 | French, Winawer, advance, Smyslov variation | 35 | 22.9% | 74.3% | 0.03 MB |
| C19 | French, Winawer, advance, poisoned pawn variation | 862 | 31.7% | 59.6% | 0.55 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 | 147 | 23.8% | 65.0% | 0.09 MB |
| C19 | French, Winawer, advance, positional main line | 387 | 27.6% | 54.1% | 0.25 MB |
| C18 | French, Winawer, classical variation | 51 | 23.5% | 52.9% | 0.03 MB |
| C00 | French, Wing gambit | 4 | 25.0% | 62.5% | 0.00 MB |
| C02 | French, advance variation | 205 | 27.8% | 54.4% | 0.15 MB |
| C02 | French, advance, Euwe variation | 193 | 35.2% | 57.5% | 0.14 MB |
| C02 | French, advance, Milner-Barry gambit | 9 | 66.7% | 55.6% |