CCRL 40/40
Downloads and Statistics
January 3, 2009
Testing summary:
Total: 159'438 games
played 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%

Opening statistics

This page shows how many games in our database were played from various openings classified by the Encyclopedia of Chess Openings. The table also shows average draw percentage and white score we observed in our games.

ECONumber
of
games		DrawsWhite
score		Commented
PGN
A74Benoni, Classical, 9...a6, 10.a410.0%100.0%0.00 MB
D65QGD; Orthodox defense, Rubinstein attack, Main line10.0%100.0%0.00 MB
A67Benoni, Taimanov variation40.0%100.0%0.00 MB
D54QGD; Anti-neo-Orthodox variation10.0%100.0%0.00 MB
A72Benoni, Classical without 9.O-O812.5%81.3%0.01 MB
A92Dutch defense1050.0%75.0%0.01 MB
A73Benoni, Classical, 9.O-O1010.0%75.0%0.01 MB
C94Ruy Lopez, Closed, Breyer defense1030.0%75.0%0.01 MB
A82Dutch, Staunton gambit250.0%75.0%0.00 MB
E02Catalan, open, 5.Qa41435.7%75.0%0.01 MB
A91Dutch defense616.7%75.0%0.01 MB
E09Catalan, Closed, Main line3218.8%75.0%0.03 MB
E37Nimzo-Indian, Classical, Noa variation, Main line, 7.Qc22133.3%73.8%0.01 MB
E64King's Indian, Fianchetto, Yugoslav system2623.1%73.1%0.02 MB
D83Gruenfeld gambit1631.3%71.9%0.01 MB
C61Ruy Lopez, Bird's defense70.0%71.4%0.01 MB
C21center game5844.8%70.7%0.04 MB
B28Sicilian, O'Kelly variation1637.5%68.8%0.01 MB
D62QGD; Orthodox defense, 7.Qc2 c5, 8.cd (Rubinstein)3551.4%68.6%0.03 MB
A89Dutch, Leningrad, Main variation with Nc64231.0%67.9%0.03 MB
A61Benoni defense19220.8%67.7%0.12 MB
D16QGD; Slav accepted, Alapin variation5226.9%67.3%0.04 MB
E53Nimzo-Indian, 4.e3, Main line with ...c59440.4%67.0%0.06 MB
C22center game6825.0%66.9%0.04 MB
E38Nimzo-Indian, Classical, 4...c57138.0%66.9%0.06 MB
B55Sicilian, Prins variation, Venice attack666.7%66.7%0.01 MB
A51Budapest defense declined90.0%66.7%0.01 MB
A63Benoni, Fianchetto variation, 9...Nbd7922.2%66.7%0.01 MB
A94Dutch, Stonewall with Ba3666.7%66.7%0.01 MB
B05Alekhine's defense, Modern variation, 4...Bg410628.3%66.0%0.08 MB
A54Old Indian, Ukrainian variation2552.0%66.0%0.02 MB
E70King's Indian, 4.e416623.5%66.0%0.11 MB
B75Sicilian, Dragon, Yugoslav attack3842.1%65.8%0.02 MB
A96Dutch, Classical variation1936.8%65.8%0.02 MB
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defense, 9...Be73534.3%65.7%0.03 MB
C30King's gambit2630.8%65.4%0.02 MB
C40King's knight Opening3630.6%65.3%0.03 MB
B16Caro-Kann, Bronstein-Larsen variation3327.3%65.2%0.03 MB
C97Ruy Lopez, Closed, Chigorin defense41531.8%65.1%0.28 MB
B04Alekhine's defense, Modern variation10540.0%64.8%0.08 MB
C16French, Winawer, Advance variation16331.3%64.7%0.11 MB
A75Benoni, Classical with ...a6 and 10...Bg41723.5%64.7%0.01 MB
A88Dutch, Leningrad, Main variation with 7...c66232.3%64.5%0.05 MB
D98Gruenfeld, Russian, Smyslov variation6245.2%64.5%0.04 MB
E49Nimzo-Indian, 4.e3, Botvinnik system3850.0%64.5%0.03 MB
A99Dutch, Ilyin-Genevsky variation with b31442.9%64.3%0.01 MB
D81Gruenfeld; Russian variation771.4%64.3%0.01 MB
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defense, 11.Bxf67031.4%64.3%0.05 MB
A56Benoni defense17527.4%64.0%0.12 MB
E71King's Indian, Makagonov system (5.h3)7326.0%63.7%0.06 MB
C60Ruy Lopez3324.2%63.6%0.02 MB
A55Old Indian, Main line8148.1%63.6%0.06 MB
A77Benoni, Classical, 9...Re8, 10.Nd22619.2%63.5%0.02 MB
A60Benoni defense1533.3%63.3%0.01 MB
D80Gruenfeld defense8835.2%63.1%0.06 MB
E69King's Indian, Fianchetto, Classical Main line24231.4%62.8%0.15 MB
A52Budapest defense14544.1%62.8%0.11 MB
A02Bird's Opening825.0%62.5%0.01 MB
D96Gruenfeld, Russian variation2544.0%62.0%0.02 MB
B76Sicilian, Dragon, Yugoslav attack, 7...O-O21426.6%61.9%0.13 MB
B60Sicilian, Richter-Rauzer8529.4%61.8%0.06 MB
C70Ruy Lopez,15836.1%61.7%0.12 MB
C99Ruy Lopez, Closed, Chigorin, 12...c5d473641.8%61.7%0.47 MB
A93Dutch, Stonewall, Botwinnik variation1315.4%61.5%0.01 MB
C06French, Tarrasch, Closed variation, Main line41538.3%61.3%0.26 MB
D32QGD; Tarrasch defense5843.1%61.2%0.05 MB
E52Nimzo-Indian, 4.e3, Main line with ...b65839.7%61.2%0.04 MB
C36KGA, Abbazia defense (Classical defense, Modern defense)933.3%61.1%0.01 MB
A32English Opening, Symmetrical2733.3%61.1%0.02 MB
A97Dutch, Ilyin-Genevsky variation955.6%61.1%0.01 MB
E87King's Indian, Saemisch, Orthodox, 7.d55026.0%61.0%0.03 MB
E68King's Indian, Fianchetto, Classical variation, 8.e441133.3%60.9%0.28 MB
A90Dutch defense9331.2%60.8%0.07 MB
C98Ruy Lopez, Closed, Chigorin, 12...Nc612132.2%60.7%0.09 MB
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O2842.9%60.7%0.02 MB
B81Sicilian, Scheveningen, Keres attack65330.5%60.6%0.37 MB
A80Dutch13333.8%60.5%0.10 MB
E77King's Indian, Four pawns attack, 6.Be23826.3%60.5%0.03 MB
D60QGD; Orthodox defense2429.2%60.4%0.02 MB
B32Sicilian defense56935.7%60.4%0.38 MB
A42Modern defense, Averbakh system6841.2%60.3%0.05 MB
B98Sicilian, Najdorf, 7...Be710730.8%60.3%0.07 MB
D28QGA; Classical variation 7.Qe24443.2%60.2%0.03 MB
C18French, Winawer, Advance variation9325.8%60.2%0.06 MB
D25QGA, 4.e39441.5%60.1%0.07 MB
B00King's pawn Opening20829.8%60.1%0.15 MB
E98King's Indian, Orthodox, Aronin-Taimanov, 9.Ne148623.0%60.1%0.31 MB
E91King's Indian, 6.Be218936.5%60.1%0.14 MB
C34King's knight's gambit1526.7%60.0%0.01 MB
A23English Opening, Bremen system, Keres variation4526.7%60.0%0.03 MB
E72King's Indian with e4 & g31040.0%60.0%0.01 MB
E80King's Indian, Saemisch variation3033.3%60.0%0.03 MB
C63Ruy Lopez, Schilemann defense3026.7%60.0%0.02 MB
D13QGD; Slav defense, Exchange variation13736.5%59.9%0.09 MB
D20Queen's Gambit accepted52335.9%59.8%0.35 MB
E18Queen's Indian, Old Main line, 7.Nc334246.5%59.8%0.21 MB
A62Benoni, Fianchetto variation6229.0%59.7%0.05 MB
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation6241.9%59.7%0.04 MB
D06Queen's Gambit5242.3%59.6%0.04 MB
C13French, Classical4325.6%59.3%0.03 MB
E76King's Indian, Four pawns attack4339.5%59.3%0.03 MB
A53Old Indian defense19633.7%59.2%0.14 MB
C14French, Classical variation10930.3%59.2%0.07 MB
D19QGD; Dutch variation46436.0%59.2%0.30 MB
C58Two knights defense2227.3%59.1%0.02 MB
A24English Opening, Bremen system with 3...g61163.6%59.1%0.01 MB
D51QGD; 4.Bg5 Nbd71145.5%59.1%0.01 MB
A17English Opening22735.2%59.0%0.16 MB
A27English Opening, Three knights system5030.0%59.0%0.04 MB
E43Nimzo-Indian, Fischer variation11739.3%59.0%0.08 MB
E19Queen's Indian, Old Main line, 9.Qxc324636.6%58.9%0.17 MB
C29Vienna gambit, Kaufmann variation2839.3%58.9%0.02 MB
B01Scandinavian (centercounter) center defense33741.2%58.9%0.23 MB
C19French, Winawer, Advance, 6...Ne7147629.8%58.9%0.92 MB
A43Old Benoni defense20327.1%58.9%0.13 MB
D07QGD; Chigorin defense32234.5%58.9%0.20 MB
E47Nimzo-Indian, 4.e3 O-O, 5.Bd35154.9%58.8%0.04 MB
C72Ruy Lopez, Modern Steinitz defense 5.0-05740.4%58.8%0.04 MB
E67King's Indian, Fianchetto with ...Nd712737.0%58.7%0.09 MB
E35Nimzo-Indian, Classical, Noa variation, 5. cxd5 exd57643.4%58.6%0.06 MB
C87Ruy Lopez, Closed, Averbach variation8239.0%58.5%0.06 MB
E62King's Indian, Fianchetto variation33833.4%58.4%0.23 MB
A31English Opening, Symmetrical, Benoni formation16141.0%58.4%0.13 MB
E94King's Indian, Orthodox variation53834.2%58.4%0.37 MB
B03Alekhine's defense9034.4%58.3%0.06 MB
A87Dutch, Leningrad, Main variation2458.3%58.3%0.02 MB
A18English, Mikenas-Carls variation1216.7%58.3%0.01 MB
A59Benko gambit, 7.e43627.8%58.3%0.03 MB
D93Gruenfeld with 5. Bf4 O-O 6. e36647.0%58.3%0.05 MB
A44Old Benoni defence683.3%58.3%0.00 MB
E82King's Indian, Saemisch, double Fianchetto variation1233.3%58.3%0.01 MB
E56Nimzo-Indian, 4.e3, Main line with 7...Nc62441.7%58.3%0.02 MB
E61King's Indian defense, 3.Nc317231.4%58.1%0.13 MB
B82Sicilian, Scheveningen, 6.f412331.7%58.1%0.09 MB
C04French, Tarrasch, Guimard Main line3724.3%58.1%0.03 MB
D66QGD; Orthodox defense, Bd3 line5641.1%58.0%0.04 MB
B36Sicilian, Accelerated Fianchetto, Maroczy bind16841.1%58.0%0.12 MB
C17French, Winawer, Advance variation22530.7%58.0%0.14 MB
D99Gruenfeld defense, Smyslov, Main line6946.4%58.0%0.05 MB
D42QGD; Semi-Tarrasch, 7.Bd35738.6%57.9%0.05 MB
B94Sicilian, Najdorf, 6.Bg53221.9%57.8%0.02 MB
C23Bishop's Opening12839.1%57.8%0.08 MB
D17QGD; Slav defense, Czech defence42434.0%57.8%0.27 MB
C42Petrov's defense158738.6%57.8%1.00 MB
D46QGD; Semi-Slav 6.Bd327135.8%57.7%0.18 MB
D87Gruenfeld, Exchange, Spassky variation14940.3%57.7%0.09 MB
B29Sicilian, Nimzovich-Rubinstein variation2623.1%57.7%0.02 MB
C74Ruy Lopez, Modern Steinitz defense2623.1%57.7%0.02 MB
A69Benoni, Four pawns attack, Main line1353.8%57.7%0.01 MB
B08Pirc, Classical (Two knights) system32034.1%57.7%0.23 MB
D92Gruenfeld, 5.Bf413148.1%57.6%0.08 MB
C03French, Tarrasch32441.7%57.6%0.23 MB
D71Neo-Gruenfeld, 5.cd2055.0%57.5%0.02 MB
E95King's Indian, Orthodox, 7...Nbd7, 8.Re19436.2%57.4%0.07 MB
E39Nimzo-Indian, Classical, Pirc variation16838.7%57.4%0.12 MB
B27Sicilian defense57834.9%57.4%0.41 MB
E10Queen's pawn game 3. Nf386341.4%57.4%0.57 MB
A39English Opening, Symmetrical, Main line with d417047.6%57.4%0.11 MB
C96Ruy Lopez, closed, 8...Na532334.7%57.3%0.23 MB
C64Ruy Lopez, Classical (Cordel) defence22731.7%57.3%0.16 MB
B88Sicilian, Sozin, Leonhardt variation14538.6%57.2%0.10 MB
C62Ruy Lopez, Old Steinitz defence10431.7%57.2%0.08 MB
B45Sicilian, Taimanov variation65934.9%57.2%0.40 MB
A33English Opening, Symmetrical38236.9%57.2%0.25 MB
B71Sicilian, Dragon, Levenfish variation728.6%57.1%0.01 MB
D55QGD; 6.Nf319745.2%57.1%0.14 MB
B33Sicilian defense153832.6%57.1%0.91 MB
C41Philidor's defense22235.6%57.0%0.15 MB
C66Ruy Lopez, Berlin defence, 4.O-O, d618049.4%56.9%0.12 MB
A40Queen's pawn114237.0%56.9%0.76 MB
E63King's Indian, Fianchetto, Panno variation88234.7%56.9%0.59 MB
A84Dutch defense12340.7%56.9%0.09 MB
A47Queen's Indian defense12334.1%56.9%0.09 MB
D24QGA, 4.Nc32937.9%56.9%0.02 MB
E17Queen's Indian, 5.Bg2 Be723240.5%56.9%0.16 MB
C75Ruy Lopez, Modern Steinitz defense2931.0%56.9%0.02 MB
B10Caro-Kann defense79735.5%56.8%0.52 MB
E90King's Indian, 5.Nf317032.4%56.8%0.12 MB
B12Caro-Kann defense129534.3%56.8%0.80 MB
C95Ruy Lopez, closed, Breyer, 10.d448937.0%56.7%0.34 MB
B38Sicilian, Accelerated Fianchetto, Maroczy bind, 6.Be323039.6%56.7%0.16 MB
A49King's Indian, Fianchetto without c417136.3%56.7%0.12 MB
B52Sicilian, Canal-Sokolsky attack, 3...Bd724843.1%56.7%0.17 MB
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9...Nxd420338.4%56.7%0.13 MB
E20Nimzo-Indian defense17633.5%56.5%0.12 MB
E99King's Indian, Orthodox, Aronin-Taimanov, Main line238.7%56.5%0.02 MB
B07Pirc defense35336.0%56.5%0.25 MB
C78Ruy Lopez, 5.O-O53136.5%56.5%0.35 MB
E60King's Indian defense88335.9%56.5%0.63 MB
A11English, Caro-Kann defensive system14843.9%56.4%0.09 MB
E97King's Indian, Orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)206632.6%56.3%1.28 MB
B06Robatsch (Modern) defense72133.0%56.3%0.50 MB
C53Giuoco piano64335.8%56.3%0.43 MB
C09French, Tarrasch, Open variation, Main line31050.6%56.3%0.21 MB
D95Gruenfeld with 5. e3 O-O 6. Qb3837.5%56.3%0.01 MB
D63QGD; Orthodox defense, 7.Rc112035.8%56.3%0.08 MB
C92Ruy Lopez, closed, 9.d4137138.3%56.2%0.87 MB
E15Queen's Indian, 4.g3627635.4%56.2%3.88 MB
B42Sicilian, Kan, 5.Bd371134.7%56.2%0.48 MB
E88King's Indian, Saemisch, Orthodox, 7.d5 c68933.7%56.2%0.06 MB
E92King's Indian, Classical variation47029.4%56.2%0.32 MB
D82Gruenfeld 4.Bf47343.8%56.2%0.05 MB
E33Nimzo-Indian, Classical variation, 4...Nc68234.1%56.1%0.06 MB
D41QGD; Semi-Tarrasch, 5.cd12345.5%56.1%0.08 MB
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)40236.1%56.1%0.28 MB
B49Sicilian, Taimanov variation23838.2%56.1%0.17 MB
A30English Opening, Symmetrical variation163237.7%56.1%1.04 MB
C05French, Tarrasch, Closed variation18235.2%56.0%0.12 MB
C82Ruy Lopez, Open, 9.c35832.8%56.0%0.04 MB
E16Queen's Indian, Capablanca variation11631.0%56.0%0.08 MB
C48Four knights, Spanish variation34137.5%56.0%0.23 MB
B30Sicilian defense104236.2%56.0%0.71 MB
A41Queen's pawn26731.8%56.0%0.19 MB
C77Ruy Lopez, Morphy defence25139.4%56.0%0.19 MB
C49Four knights, double Ruy Lopez23537.9%56.0%0.17 MB
B63Sicilian, Richter-Rauzer, Rauzer attack32931.0%55.9%0.20 MB
A21English Opening41531.3%55.9%0.28 MB
C69Ruy Lopez, Exchange variation, 5.O-O28030.4%55.9%0.19 MB
A85Dutch with 2.c4 & 3.Nc31729.4%55.9%0.01 MB
C11French defense178035.8%55.9%1.07 MB
D68QGD; Orthodox defense, Classical variation8646.5%55.8%0.06 MB
A58Benko gambit accepted13840.6%55.8%0.09 MB
C25Vienna game9634.4%55.7%0.07 MB
C73Ruy Lopez, Modern Steinitz defense, Richter variation3531.4%55.7%0.03 MB
E01Catalan, closed3537.1%55.7%0.03 MB
B50Sicilian42733.5%55.6%0.30 MB
B09Pirc, Austrian attack20541.0%55.6%0.14 MB
A50Queen's pawn game17934.1%55.6%0.13 MB
D18QGD; Dutch variation2722.2%55.6%0.02 MB
E13Queen's Indian, 4.Nc3, Main line2737.0%55.6%0.02 MB
E81King's Indian, Saemisch, 5...O-O30035.0%55.5%0.20 MB
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd28237.8%55.5%0.06 MB
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc21044.3%55.5%0.14 MB
B54Sicilian32035.3%55.5%0.23 MB
A34English Opening, Symmetrical43036.0%55.5%0.29 MB
B40Sicilian defense101433.9%55.4%0.68 MB
D73Neo-Gruenfeld, 5.Nf38456.0%55.4%0.07 MB
D88Gruenfeld, Spassky variation, Main line, 10...cd, 11.cd2846.4%55.4%0.02 MB
C15French, Winawer (Nimzovich) variation13138.9%55.3%0.10 MB
C55Two knights defense24436.1%55.3%0.17 MB
D35QGD; 3...Nf625742.0%55.3%0.19 MB
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb610545.7%55.2%0.08 MB
A70Benoni, Classical with e4 and Nf312532.0%55.2%0.09 MB
D30QGD145738.8%55.2%0.93 MB
B19Caro-Kann, Classical, 7...Nd789539.2%55.1%0.54 MB
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defense, 8...Bd7102530.0%55.1%0.60 MB
C24Bishop's Opening, Berlin defense10934.9%55.0%0.08 MB
C84Ruy Lopez, Closed defense40037.5%55.0%0.26 MB
D22QGA; Alekhine defense2060.0%55.0%0.02 MB
C93Ruy Lopez, closed, Smyslov defense3030.0%55.0%0.03 MB
D34QGD; Tarrasch, 7...Be737144.7%55.0%0.25 MB
B47Sicilian, Taimanov (Bastrikov) variation147737.1%55.0%0.93 MB
D27QGA; classical variation123645.1%54.9%0.79 MB
D37QGD; 4.Nf3146641.3%54.9%0.94 MB
B11Caro-Kann, Two knights, 3...Bg47234.7%54.9%0.05 MB
C83Ruy Lopez, Open, Classical defence5244.2%54.8%0.04 MB
E14Queen's Indian, 4.e338536.4%54.8%0.25 MB
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation96847.0%54.8%0.63 MB
B41Sicilian, Kan variation9430.9%54.8%0.07 MB
A20English Opening115338.0%54.7%0.74 MB
E11Bogo-Indian defense66732.4%54.7%0.45 MB
C91Ruy Lopez, closed, 9.d4189836.7%54.7%1.24 MB
A04Reti Opening162535.8%54.7%1.06 MB
D47QGD; Semi-Slav 7.Bc4393035.7%54.7%2.32 MB
D52QGD22746.7%54.6%0.16 MB
B73Sicilian, Dragon, Classical, 8.O-O7638.2%54.6%0.06 MB
E22Nimzo-Indian, Spielmann variation1154.5%54.5%0.01 MB
A78Benoni, Classical with ...Re8 and ...Na61136.4%54.5%0.01 MB
D11QGD; Slav defense, 3.Nf346036.7%54.5%0.33 MB
B15Caro-Kann defense20333.0%54.4%0.14 MB
B99Sicilian, Najdorf, 7...Be7 Main line27125.5%54.4%0.15 MB
B43Sicilian, Kan, 5.Nc343034.9%54.4%0.29 MB
E93King's Indian, Petrosian system, Main line2339.1%54.3%0.02 MB
A15English, 1...Nf6 (Anglo-Indian defense)124138.7%54.3%0.81 MB
D67QGD; Orthodox defense, Bd3 line, Capablanca freeing manoever7040.0%54.3%0.05 MB
E32Nimzo-Indian, Classical variation172140.4%54.3%1.07 MB
E58Nimzo-Indian, 4.e3, Main line with 8...Bxc336433.8%54.3%0.23 MB
C10French, Paulsen variation55337.6%54.2%0.36 MB
D94Gruenfeld, 5.e317750.8%54.2%0.13 MB
A81Dutch defense30835.7%54.2%0.21 MB
C12French, MacCutcheon variation26129.5%54.2%0.16 MB
B17Caro-Kann, Steinitz variation59436.7%54.2%0.39 MB
B56Sicilian35735.0%54.2%0.24 MB
D43QGD; Semi-Slav143737.1%54.2%0.91 MB
B25Sicilian, Closed8436.9%54.2%0.07 MB
D61QGD; Orthodox defense, Rubinstein variation4850.0%54.2%0.04 MB
C57Two knights defense1225.0%54.2%0.01 MB
B59Sicilian, Boleslavsky variation, 7.Nb31225.0%54.2%0.01 MB
C20King's pawn game1225.0%54.2%0.01 MB
C80Ruy Lopez, Open (Tarrasch) defence42134.2%54.2%0.25 MB
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d57342.5%54.1%0.06 MB
E00Queen's pawn game78336.0%54.0%0.54 MB
B74Sicilian, Dragon, Classical, 9.Nb35036.0%54.0%0.04 MB
B22Sicilian, Alapin's variation (2.c3)100438.5%53.9%0.67 MB
B39Sicilian, Accelerated Fianchetto, Breyer variation8944.9%53.9%0.07 MB
D85Gruenfeld, exchange variation120946.4%53.9%0.76 MB
D21QGA, 3.Nf36530.8%53.8%0.05 MB
B23Sicilian, Closed77934.9%53.8%0.50 MB
B14Caro-Kann, Panov-Botvinnik attack, 5...e650244.2%53.8%0.33 MB
C71Ruy Lopez, Modern Steinitz defense5335.8%53.8%0.04 MB
C79Ruy Lopez, Steinitz defense deferred (Russian defence)9435.1%53.7%0.07 MB
D33QGD; Tarrasch, Schlechter-Rubinstein system2740.7%53.7%0.02 MB
D10QGD; Slav defense80335.1%53.7%0.56 MB
B87Sozin with ...a6 and ...b531437.3%53.7%0.20 MB
B46Sicilian, Taimanov variation98737.8%53.6%0.61 MB
A45Queen's pawn game84535.5%53.6%0.55 MB
B35Sicilian, Accelerated Fianchetto, Modern variation with Bc425040.0%53.6%0.17 MB
E75King's Indian, Averbakh, Main line147.1%53.6%0.01 MB
B91Sicilian, Najdorf, Zagreb (Fianchetto) variation8431.0%53.6%0.06 MB
D44QGD; Semi-Slav 5.Bg5 dc42134.0%53.6%0.22 MB
D86Gruenfeld, Exchange, Classical variation15545.2%53.5%0.11 MB
A46Queen's pawn game64933.1%53.5%0.42 MB
D77Neo-Gruenfeld, 6.O-O11348.7%53.5%0.08 MB
C88Ruy Lopez, Closed149236.0%53.5%0.97 MB
A05Reti Opening, 2..Nf690539.7%53.4%0.61 MB
D15QGD; Slav accepted, Exchange variation, 6.Bf4 Bf546933.9%53.4%0.33 MB
A57Benko gambit20630.1%53.4%0.14 MB
D64QGD; Orthodox defense, Rubinstein attack (with Rc1)5945.8%53.4%0.04 MB
A25English Opening, Sicilian Reversed42435.8%53.3%0.29 MB
C08French, Tarrasch, Open, 4.exd5 exd530350.5%53.3%0.20 MB
D79Neo-Gruenfeld, 6.O-O, Main line4645.7%53.3%0.04 MB
E30Nimzo-Indian, Leningrad variation,12330.1%53.3%0.08 MB
D26QGA; classical variation37152.0%53.2%0.25 MB
B85Sicilian, Scheveningen, Classical variation with ...Qc7 and ...Nc623240.1%53.2%0.15 MB
C76Ruy Lopez, Modern Steinitz defense, Fianchetto (Bronstein) variation6229.0%53.2%0.05 MB
C02French, Advance variation74631.9%53.2%0.49 MB
D39QGD; Ragozin, Vienna variation56748.1%53.2%0.33 MB
E84King's Indian, Saemisch, Panno Main line9534.7%53.2%0.07 MB
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack20642.2%53.2%0.15 MB
E83King's Indian, Saemisch, 6...Nc61643.8%53.1%0.01 MB
A14English, Neo-Catalan declined19447.4%53.1%0.14 MB
E44Nimzo-Indian, Fischer variation, 5.Ne28137.0%53.1%0.06 MB
B18Caro-Kann, Classical variation18139.8%53.0%0.13 MB
D56QGD; Lasker defense6633.3%53.0%0.05 MB
E06Catalan, Closed, 5.Nf353445.3%53.0%0.37 MB
B34Sicilian, Accelerated Fianchetto, Exchange variation6737.3%53.0%0.05 MB
A10English Opening45541.8%53.0%0.30 MB
D02Queen's pawn game, 2. Nf3182135.7%53.0%1.18 MB
B90Sicilian, Najdorf622630.3%52.9%3.48 MB
D05Queen's pawn game, Zukertort variation13836.2%52.9%0.10 MB
E40Nimzo-Indian, 4.e35225.0%52.9%0.04 MB
A36English Opening, Symmetrical17526.9%52.9%0.12 MB
C89Ruy Lopez, Marshall counter-attack21038.1%52.9%0.14 MB
E59Nimzo-Indian, 4.e3, Main line51243.2%52.8%0.32 MB
D48QGD; Meran, 8...a679037.2%52.8%0.48 MB
E65King's Indian, Yugoslav, 7.O-O1850.0%52.8%0.01 MB
D23Queen's gambit accepted1838.9%52.8%0.01 MB
D12QGD; Slav defense, 4.e3 Bf548736.6%52.8%0.32 MB
A26English Opening, Closed system11030.9%52.7%0.07 MB
C45Scotch game128138.9%52.7%0.78 MB
A35English Opening, Symmetrical40937.9%52.7%0.28 MB
E12Queen's Indian defense264836.9%52.6%1.67 MB
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc31931.6%52.6%0.02 MB
C01French, Exchange variation27639.9%52.5%0.20 MB
D58QGD; Tartakower (Makagonov-Bondarevsky) system258145.4%52.5%1.69 MB
A38English Opening, Symmetrical18440.8%52.4%0.13 MB
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)22741.4%52.4%0.16 MB
C67Ruy Lopez, Berlin defence, Open variation72341.5%52.4%0.46 MB
A13English Opening73339.0%52.4%0.53 MB
D50QGD; 4.Bg52138.1%52.4%0.02 MB
D78Neo-Gruenfeld, 6.O-O c612843.8%52.3%0.09 MB
A29English Opening, Four knights, kingside Fianchetto169038.1%52.3%1.05 MB
C59Two knights defense31131.8%52.3%0.18 MB
A07Reti Opening, King's Indian attack (Barcza system)149439.5%52.2%1.03 MB
D45QGD; Semi-Slav 5.e3477339.9%52.2%2.92 MB
E08Catalan, Closed, 7.Qc24626.1%52.2%0.03 MB
B80Sicilian, Scheveningen variation46730.6%52.1%0.28 MB
D38QGD; Ragozin variation55039.6%52.0%0.36 MB
A28English Opening, Four knights system66139.8%52.0%0.44 MB
B77Sicilian, Dragon, Yugoslav attack, 9.Bc45242.3%51.9%0.04 MB
E05Catalan, Open, Classical line2626.9%51.9%0.02 MB
C50King's pawn game52737.8%51.9%0.34 MB
B92Sicilian, Najdorf, Zagreb (Fianchetto) variation105037.6%51.9%0.70 MB
B86Sicilian, Sozin attack2737.0%51.9%0.02 MB
C44King's pawn game13739.4%51.8%0.10 MB
E66King's Indian, Fianchetto, Yugoslav Panno5534.5%51.8%0.04 MB
D31QGD, 3.Nc330536.1%51.8%0.22 MB
B83Sicilian, Scheveningen, 6.Be244438.7%51.8%0.30 MB
C47Four knights, Scotch variation8748.3%51.7%0.07 MB
A01Nimzovich-Larsen attack20428.9%51.7%0.14 MB
B48Sicilian, Taimanov variation87036.0%51.7%0.55 MB
E73King's Indian, 5.Be212031.7%51.7%0.08 MB
C86Worrall attack6241.9%51.6%0.05 MB
E04Catalan, Open, 5.Nf374840.1%51.6%0.47 MB
D97Gruenfeld, Russian variation with 7. e471741.0%51.6%0.46 MB
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6323431.5%51.6%1.82 MB
B21Sicilian, Grand Prix attack20237.6%51.5%0.13 MB
C46Three knights game18143.1%51.4%0.14 MB
D14QGD; Slav defense, Exchange variation8138.3%51.2%0.05 MB
E41Nimzo-Indian, 4.e3 c522339.5%51.1%0.16 MB
B53Sicilian, Chekhover variation9335.5%51.1%0.07 MB
C43Petrov, Modern (Steinitz) attack43139.9%51.0%0.27 MB
B70Sicilian, Dragon variation9635.4%51.0%0.07 MB
B93Sicilian, Najdorf, 6.f435243.8%50.9%0.23 MB
C07French, Tarrasch, Open variation64847.1%50.8%0.43 MB
A37English Opening, Symmetrical18328.4%50.8%0.12 MB
A08Reti Opening, King's Indian attack12336.6%50.8%0.09 MB
D90Gruenfeld, Three knights variation6233.9%50.8%0.04 MB
A48King's Indian, East Indian defense44635.2%50.8%0.31 MB
B57Sicilian, Sozin (not Scheveningen)40940.3%50.7%0.28 MB
D40QGD; Semi-Tarrasch defense15139.1%50.7%0.11 MB
D03Torre attack, Tartakower variation7635.5%50.7%0.06 MB
B89Sicilian, Sozin, 7.Be368631.0%50.5%0.40 MB
B44Sicilian defense36240.1%50.4%0.24 MB
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9.f412742.5%50.4%0.08 MB
B13Caro-Kann, Exchange variation25545.9%50.4%0.17 MB
C65Ruy Lopez, Berlin defense26631.6%50.4%0.20 MB
A09Reti Opening, 2..d5 3.c415743.3%50.3%0.12 MB
E34Nimzo-Indian, Classical, Noa variation15950.3%50.3%0.11 MB
A22English Opening56635.9%50.3%0.37 MB
A16English Opening19929.1%50.3%0.14 MB
B84Sicilian, Scheveningen (Paulsen), Classical variation145937.1%50.2%0.91 MB
A00Irregular Openings43236.6%50.2%0.30 MB
E21Nimzo-Indian, Three knights variation36937.4%50.1%0.26 MB
A19English, Mikenas-Carls, Sicilian variation2152.4%50.0%0.02 MB
A71Benoni, Classical, 8.Bg52512.0%50.0%0.02 MB
E96King's Indian, Orthodox, 7...Nbd7, Main line2133.3%50.0%0.02 MB
A86Dutch with 2.c4 & 3.g31457.1%50.0%0.01 MB
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d51675.0%50.0%0.01 MB
E74King's Indian, Averbakh, 6...c51323.1%50.0%0.01 MB
D57QGD; Lasker defense, Main line3100.0%50.0%0.00 MB
C35KGA, Cunningham defense714.3%50.0%0.01 MB
A83Dutch, Staunton gambit, Staunton's line3100.0%50.0%0.00 MB
D08QGD; Albin counter-gambit333.3%50.0%0.00 MB
E03Catalan, open, Alekhine variation1100.0%50.0%0.00 MB
A98Dutch, Ilyin-Genevsky variation with Qc21100.0%50.0%0.00 MB
E36Nimzo-Indian, Classical, Noa variation, 5. a32218.2%50.0%0.02 MB
A79Benoni, Classical, 11.f32040.0%50.0%0.02 MB
C31KGD, Falkbeer counter-gambit3100.0%50.0%0.00 MB
B79Sicilian, Dragon, Yugoslav attack, 12.h4520.0%50.0%0.00 MB
D84Gruenfeld gambit accepted560.0%50.0%0.00 MB
B24Sicilian, Closed6529.2%50.0%0.05 MB
B72Sicilian, Dragon, 6.Be32347.8%50.0%0.02 MB
C00French defense95337.0%49.8%0.64 MB
D00Queen's pawn game45538.0%49.6%0.30 MB
A06Reti Opening, 2..d548035.6%49.5%