CCRL 40/4
Downloads and Statistics
December 27, 2008
Testing summary:
Total: 378'401 games
played by 729 programs
5738 CPU days (X2 4600+)

White wins: 144'367 (38.2%)
Black wins: 114'376 (30.2%)
Draws: 119'658 (31.6%)
White score: 54.0%

Opening statistics

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

ECOOpeningNumber
of
games		DrawsWhite
score		Bare
PGN
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1332731.8%55.8%2.58 MB
B90Sicilian, Najdorf, Byrne (English) attack1278224.6%53.6%2.18 MB
D45QGD semi-Slav, Stoltz variation1112334.2%51.5%2.14 MB
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a61092226.7%51.0%1.89 MB
D47QGD semi-Slav, Meran, Wade variation855231.0%51.9%1.62 MB
B47Sicilian, Taimanov (Bastrikov) variation561232.9%54.3%1.07 MB
D58QGD, Tartakower (Makagonov-Bondarevsky) system533635.3%51.7%1.09 MB
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7507725.5%52.6%0.85 MB
E32Nimzo-Indian, classical variation477337.8%52.0%0.91 MB
B84Sicilian, Scheveningen (Paulsen), classical variation412330.3%52.1%0.80 MB
E12Queen's Indian, Petrosian system384733.9%52.4%0.74 MB
B92Sicilian, Najdorf, Opovcensky variation371732.9%53.2%0.74 MB
A29English, four knights, kingside fianchetto364634.2%51.2%0.74 MB
D43QGD semi-Slav317933.0%52.0%0.63 MB
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1316420.8%58.0%0.57 MB
B42Sicilian, Kan, 5.Bd3302029.2%56.5%0.59 MB
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)297527.7%55.2%0.59 MB
B81Sicilian, Scheveningen, Keres attack288626.3%59.4%0.51 MB
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack278628.9%57.3%0.49 MB
C19French, Winawer, advance, poisoned pawn variation268328.0%60.2%0.53 MB
B33Sicilian, Pelikan, Chelyabinsk variation267430.0%55.5%0.49 MB
C11French, Burn variation262532.2%53.5%0.54 MB
D85Gruenfeld, modern exchange variation249140.7%56.4%0.45 MB
C99Ruy Lopez, closed, Chigorin, 12...c5d4247436.1%59.0%0.46 MB
C91Ruy Lopez, closed, Bogolyubov variation240632.5%51.7%0.51 MB
B43Sicilian, Kan, 5.Nc3235031.3%52.3%0.46 MB
B46Sicilian, Taimanov variation233933.1%54.5%0.47 MB
E04Catalan, open, 5.Nf3231836.5%52.8%0.44 MB
B40Sicilian defence222232.0%52.7%0.47 MB
D02Queen's pawn game221128.9%52.5%0.47 MB
B19Caro-Kann, classical, Spassky variation217030.2%58.6%0.42 MB
B27Sicilian, Hungarian variation216033.5%55.8%0.45 MB
A20English opening215933.9%54.9%0.43 MB
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)215833.8%52.2%0.42 MB
B48Sicilian, Taimanov variation214832.2%49.7%0.41 MB
E12Queen's Indian, 4.Nc3214832.5%50.5%0.42 MB
B22Sicilian, Alapin's variation (2.c3)209838.3%54.1%0.43 MB
B33Sicilian, Sveshnikov variation191125.9%52.8%0.32 MB
B12Caro-Kann, advance variation187830.5%55.9%0.39 MB
A04Reti opening185830.0%52.9%0.38 MB
B99Sicilian, Najdorf, 7...Be7 main line185819.7%55.3%0.28 MB
A15English opening183532.8%55.1%0.40 MB
B97Sicilian, Najdorf, Poisoned pawn variation177136.3%47.1%0.30 MB
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)174029.9%53.9%0.35 MB
B57Sicilian, Sozin, Benko variation170733.2%49.2%0.34 MB
D37QGD, classical variation (5.Bf4)168333.8%53.9%0.34 MB
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)164531.8%52.9%0.34 MB
A40Queen's pawn157632.1%54.8%0.34 MB
E63King's Indian, fianchetto, Panno variation156631.0%57.2%0.32 MB
D30Queen's gambit declined156330.8%54.8%0.33 MB
A30English, symmetrical variation149732.7%51.7%0.32 MB
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation148738.3%54.9%0.31 MB
B17Caro-Kann, Steinitz variation148632.8%53.2%0.32 MB
A30English, symmetrical, hedgehog system148033.9%57.2%0.32 MB
C07French, Tarrasch, open variation147737.8%52.1%0.32 MB
B93Sicilian, Najdorf, 6.f4146830.2%50.2%0.29 MB
E94King's Indian, orthodox, 7...Nbd7145027.2%58.4%0.30 MB
C06French, Tarrasch, closed variation, main line143133.8%57.3%0.27 MB
B42Sicilian, Kan, Polugaievsky variation142728.0%54.0%0.28 MB
E10Queen's pawn game139835.6%55.6%0.30 MB
C91Ruy Lopez, closed, 9.d4137529.2%55.8%0.30 MB
C95Ruy Lopez, closed, Breyer, Borisenko variation135631.0%58.4%0.28 MB
A05Reti opening134832.2%52.8%0.28 MB
D37QGD, 4.Nf3133435.0%52.2%0.29 MB
E59Nimzo-Indian, 4.e3, main line131832.8%55.2%0.27 MB
E06Catalan, closed, 5.Nf3129339.1%53.6%0.28 MB
E60King's Indian, 3.Nf3127832.2%53.5%0.27 MB
C19French, Winawer, advance, positional main line125227.5%58.3%0.27 MB
D97Gruenfeld, Russian, Alekhine (Hungarian) variation124432.2%50.2%0.24 MB
B89Sicilian, Sozin, 7.Be3123127.5%50.0%0.22 MB
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3122428.4%50.7%0.23 MB
C11French, Steinitz, Boleslavsky variation117830.1%54.6%0.22 MB
D27QGA, classical, Rubinstein variation117037.9%55.8%0.25 MB
B06Robatsch (modern) defence116831.7%57.1%0.24 MB
D91Gruenfeld, 5.Bg5115534.8%46.8%0.24 MB
B90Sicilian, Najdorf114527.4%52.7%0.22 MB
D38QGD, Ragozin variation113136.1%53.8%0.24 MB
B97Sicilian, Najdorf, 7...Qb6113023.5%43.4%0.20 MB
C90Ruy Lopez, closed, Pilnik variation112828.5%53.0%0.27 MB
A07Reti, King's Indian attack (Barcza system)112332.5%52.0%0.24 MB
C09French, Tarrasch, open variation, main line112340.9%56.1%0.24 MB
B87Sicilian, Sozin with ...a6 and ...b5111230.2%48.9%0.23 MB
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)109334.6%56.6%0.22 MB
E11Bogo-Indian defence, Nimzovich variation108932.0%55.9%0.23 MB
E00Catalan opening107531.9%54.1%0.24 MB
E92King's Indian, Gligoric-Taimanov system106925.7%55.7%0.22 MB
D12QGD Slav, 4.e3 Bf5103534.5%56.0%0.22 MB
E94King's Indian, orthodox variation103531.7%55.1%0.21 MB
C42Petrov, classical attack, Marshall variation102731.9%56.9%0.21 MB
D19QGD Slav, Dutch variation100533.2%56.5%0.21 MB
D48QGD semi-Slav, Meran, 8...a6100530.7%46.2%0.23 MB
B89Sicilian, Velimirovic attack100222.9%50.6%0.18 MB
E81King's Indian, Saemisch, 5...O-O99726.3%54.2%0.19 MB
B56Sicilian96530.4%54.7%0.20 MB
C90Ruy Lopez, closed (with ...d6)95430.7%51.5%0.21 MB
D10QGD Slav defence92830.5%52.0%0.20 MB
A46Queen's pawn game92630.1%56.0%0.20 MB
B35Sicilian, accelerated fianchetto, modern variation with Bc491436.5%51.4%0.19 MB
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd491431.1%52.6%0.15 MB
D48QGD semi-Slav, Meran, Reynolds' variation91230.7%54.2%0.17 MB
E68King's Indian, fianchetto, classical variation, 8.e490830.3%56.3%0.19 MB
C42Petrov, classical attack, Jaenisch variation90636.4%57.3%0.19 MB
B50Sicilian90331.9%50.8%0.20 MB
A07Reti, King's Indian attack, Yugoslav variation88633.7%53.4%0.20 MB
B14Caro-Kann, Panov-Botvinnik attack, 5...e686637.4%54.0%0.19 MB
D27QGA, classical, 6...a685738.2%54.1%0.19 MB
C67Ruy Lopez, Berlin defence, open variation85339.5%54.0%0.17 MB
B45Sicilian, Taimanov variation84530.2%55.6%0.17 MB
A13English opening84232.9%54.5%0.18 MB
A81Dutch defence83932.7%61.6%0.18 MB
A45Queen's pawn game82629.5%51.9%0.19 MB
E69King's Indian, fianchetto, classical main line82229.8%58.5%0.17 MB
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be781225.2%52.2%0.16 MB
E18Queen's Indian, old main line, 7.Nc381234.0%56.8%0.18 MB
C00French, King's Indian attack80835.0%54.3%0.18 MB
E11Bogo-Indian defence, Gruenfeld variation80633.1%56.4%0.17 MB
C08French, Tarrasch, open, 4.ed ed79040.4%53.6%0.18 MB
A10English opening78733.0%53.6%0.17 MB
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be377840.1%57.2%0.16 MB
B90Sicilian, Najdorf, Lipnitzky attack77527.4%45.2%0.15 MB
B10Caro-Kann defence73925.7%51.8%0.14 MB
B30Sicilian defence73033.3%51.4%0.16 MB
D15QGD Slav, 4.Nc372436.2%53.2%0.16 MB
B80Sicilian, Scheveningen variation71623.6%54.0%0.14 MB
A35English, symmetrical, four knights system69635.3%53.0%0.16 MB
E39Nimzo-Indian, classical, Pirc variation69536.5%57.8%0.14 MB
A45Trompovsky attack (Ruth, Opovcensky opening)69130.7%50.5%0.15 MB
E11Bogo-Indian defence67635.7%56.7%0.15 MB
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf667223.2%56.3%0.12 MB
E92King's Indian, Petrosian system, Stein variation66827.7%52.3%0.14 MB
B76Sicilian, dragon, Yugoslav attack, Rauser variation65326.2%57.5%0.11 MB
D47QGD semi-Slav, Meran variation64639.5%52.6%0.14 MB
E21Nimzo-Indian, three knights variation64434.3%49.9%0.14 MB
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation63926.3%59.8%0.11 MB
A22English, Bremen, Smyslov system63634.7%50.1%0.14 MB
B20Sicilian defence62327.9%49.3%0.13 MB
B49Sicilian, Taimanov variation62334.3%53.9%0.13 MB
B08Pirc, classical system, 5.Be261936.2%57.2%0.14 MB
D44QGD semi-Slav, anti-Meran gambit61226.1%60.0%0.10 MB
C03French, Tarrasch59134.9%54.3%0.13 MB
A40Queen's pawn, Keres defence58729.3%56.0%0.13 MB
C97Ruy Lopez, closed, Chigorin defence57824.0%63.1%0.12 MB
B06Robatsch defence, Two knights, Suttles variation57635.2%57.0%0.13 MB
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O57524.0%51.5%0.10 MB
A56Benoni defence57426.1%62.4%0.11 MB
D20Queen's gambit accepted57233.4%55.2%0.13 MB
A57Benko gambit half accepted57132.0%57.5%0.11 MB
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f456930.8%54.2%0.10 MB
D07QGD, Chigorin defence56930.1%58.1%0.11 MB
E14Queen's Indian, 4.e356434.2%49.4%0.12 MB
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack55531.9%53.1%0.12 MB
C05French, Tarrasch, closed variation54726.5%58.2%0.11 MB
D11QGD Slav, 3.Nf354030.9%53.1%0.12 MB
E41Nimzo-Indian, 4.e3 c554033.1%52.3%0.11 MB
C88Ruy Lopez, closed, anti-Marshall 8.a453233.6%49.7%0.12 MB
E19Queen's Indian, old main line, 9.Qxc353234.4%54.8%0.12 MB
E53Nimzo-Indian, 4.e3, main line with ...c553235.0%51.7%0.11 MB
D20QGA, 3.e452631.6%54.4%0.11 MB
A21English opening52528.2%55.0%0.11 MB
B54Sicilian52229.3%56.2%0.12 MB
E62King's Indian, fianchetto, Kavalek (Bronstein) variation52130.5%59.4%0.11 MB
C01French, exchange variation51135.4%54.5%0.12 MB
D97Gruenfeld, Russian, Prins variation51134.4%52.3%0.10 MB
B23Sicilian, closed51026.1%49.5%0.11 MB
B58Sicilian, Boleslavsky variation50832.3%50.6%0.11 MB
A70Benoni, classical with e4 and Nf349930.1%60.1%0.11 MB
E41Nimzo-Indian, e3, Huebner variation49926.1%46.3%0.10 MB
D02Queen's bishop game49732.8%53.2%0.11 MB
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation49136.7%56.0%0.10 MB
D85Gruenfeld, exchange variation48640.3%57.0%0.10 MB
D45QGD semi-Slav, accelerated Meran (Alekhine variation)48032.9%52.5%0.11 MB
A48King's Indian, Torre attack47735.0%49.4%0.11 MB
A58Benko gambit accepted47630.3%58.0%0.10 MB
B82Sicilian, Scheveningen, 6.f447628.8%57.2%0.09 MB
C02French, advance, Paulsen attack47326.4%55.5%0.10 MB
E84King's Indian, Saemisch, Panno main line47329.0%56.6%0.09 MB
D10QGD Slav defence, exchange variation46032.2%49.1%0.11 MB
A13English opening, Agincourt variation45933.1%53.6%0.11 MB
A33English, symmetrical, Geller variation45729.1%55.3%0.10 MB
E00Queen's pawn game45729.5%56.1%0.11 MB
C43Petrov, modern attack, Symmetrical variation45632.7%53.4%0.09 MB
B10Caro-Kann, anti-anti-Caro-Kann defence45447.1%51.5%0.10 MB
B83Sicilian, modern Scheveningen, main line44835.7%49.8%0.10 MB
A43Old Benoni defence44432.7%59.3%0.10 MB
C53Giuoco Piano43833.1%47.8%0.10 MB
B85Sicilian, Scheveningen, classical main line43337.2%52.1%0.09 MB
C96Ruy Lopez, closed (10...c5)43231.5%57.4%0.10 MB
C88Ruy Lopez, closed, 7...O-O43133.2%54.2%0.09 MB
A25English, closed system41931.5%56.6%0.09 MB
C02French, advance, Euwe variation41725.7%52.4%0.09 MB
C78Ruy Lopez, Archangelsk (counterthrust) variation41428.7%55.9%0.09 MB
D49QGD semi-Slav, Meran, Blumenfeld variation40831.1%50.9%0.07 MB
A53Old Indian defence40731.9%58.5%0.09 MB
C02French, advance variation40728.3%53.4%0.09 MB
A00Benko's opening40535.1%50.9%0.09 MB
D11QGD Slav, 4.e340535.8%51.2%0.09 MB
A80Dutch40032.0%55.3%0.09 MB
A34English, symmetrical variation39228.8%52.2%0.09 MB
D35QGD, exchange, positional line39031.3%55.4%0.08 MB
A41Queen's Pawn38528.1%55.1%0.09 MB
C10French, Rubinstein variation38134.4%53.7%0.09 MB
E46Nimzo-Indian, Reshevsky variation38127.6%50.3%0.08 MB
B23Sicilian, closed, 2...Nc637934.3%54.9%0.08 MB
D00Queen's pawn, Mason variation37929.3%53.7%0.08 MB
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)37836.8%52.5%0.08 MB
C45Scotch game37733.2%56.1%0.08 MB
B39Sicilian, accelerated fianchetto, Breyer variation37432.4%61.4%0.08 MB
A49King's Indian, fianchetto without c437231.7%51.1%0.09 MB
D31QGD, semi-Slav, Marshall gambit37229.8%53.4%0.07 MB
E60King's Indian, 3.g336832.9%59.4%0.08 MB
B40Sicilian, Anderssen variation36432.4%55.5%0.08 MB
B33Sicilian defence36128.5%49.4%0.07 MB
E60King's Indian defence36125.8%55.8%0.09 MB
E61King's Indian defence, 3.Nc336026.7%53.6%0.08 MB
B09Pirc, Austrian attack, 6.Bd335833.5%64.5%0.07 MB
B01Scandinavian (centre counter) defence35534.1%63.8%0.08 MB
A46Queen's pawn, Torre attack35229.3%50.7%0.08 MB
C84Ruy Lopez, closed defence35136.8%50.0%0.08 MB
E17Queen's Indian, Opovcensky variation35031.1%59.9%0.08 MB
A90Dutch defence34621.4%61.3%0.08 MB
C62Ruy Lopez, old Steinitz defence34628.0%53.3%0.08 MB
B44Sicilian, Szen, hedgehog variation34530.1%44.6%0.07 MB
C12French, MacCutcheon, Lasker variation, 8...g634528.1%53.2%0.07 MB
C55Two knights defence (Modern bishop's opening)34533.9%52.0%0.08 MB
B83Sicilian, Scheveningen, 6.Be234430.2%50.9%0.08 MB
B32Sicilian defence34330.9%48.1%0.08 MB
C48Four knights, Rubinstein counter-gambit34331.8%55.2%0.08 MB
A33English, symmetrical variation34235.7%51.2%0.08 MB
A59Benko gambit, main line34233.3%56.7%0.07 MB
E95King's Indian, orthodox, 7...Nbd7, 8.Re134231.6%60.5%0.07 MB
A48King's Indian, East Indian defence33732.3%47.3%0.08 MB
A41Old Indian, Tartakower (Wade) variation33631.3%58.8%0.08 MB
B52Sicilian, Canal-Sokolsky attack, 3...Bd733634.2%50.7%0.08 MB
E88King's Indian, Saemisch, orthodox, 7.d5 c633628.6%54.2%0.07 MB
A40Queen's pawn, Franco-Indian (Keres) defence33534.9%52.7%0.08 MB
A06Reti, Nimzovich-Larsen attack33432.0%52.8%0.08 MB
A28English, four knights, Romanishin variation33236.4%53.5%0.07 MB
A21English, Kramnik-Shirov counterattack32835.4%48.2%0.07 MB
D17QGD Slav, Carlsbad variation32537.8%55.8%0.07 MB
B36Sicilian, accelerated fianchetto, Maroczy bind32434.9%57.3%0.07 MB
C50Giuoco Pianissimo32032.5%55.0%0.07 MB
D34QGD, Tarrasch, Prague variation, 9.Bg532037.8%60.5%0.07 MB
E90King's Indian, 5.Nf332023.8%54.1%0.07 MB
C78Ruy Lopez, Moeller defence31533.3%51.0%0.08 MB
E44Nimzo-Indian, Fischer variation, 5.Ne231527.0%51.9%0.07 MB
D39QGD, Ragozin, Vienna variation31339.3%56.4%0.06 MB
A05Reti, King's Indian attack31039.4%57.4%0.07 MB
A61Benoni defence30627.8%60.0%0.06 MB
C80Ruy Lopez, open, Bernstein variation30636.3%60.0%0.06 MB
C80Ruy Lopez, open, 8...Be630338.0%49.0%0.06 MB
A06Reti opening30029.3%52.0%0.07 MB
B44Sicilian, Szen (`anti-Taimanov') variation29733.0%51.2%0.07 MB
B80Sicilian, Scheveningen, English variation29723.6%53.5%0.06 MB
E70King's Indian, 4.e429732.0%56.7%0.06 MB
C14French, classical, Steinitz variation29428.9%59.4%0.06 MB
C65Ruy Lopez, Berlin defence29432.7%51.0%0.07 MB
E38Nimzo-Indian, classical, 4...c529434.0%59.2%0.06 MB
A31English, symmetrical, Benoni formation29234.9%51.0%0.07 MB
B07Pirc defence29232.5%53.9%0.07 MB
D44QGD semi-Slav, anti-Meran, Lilienthal variation29221.9%58.2%0.04 MB
B77Sicilian, dragon, Yugoslav attack, 9...Bd729026.6%56.0%0.06 MB
D55QGD, Petrosian variation28846.5%55.6%0.06 MB
E47Nimzo-Indian, 4.e3 O-O, 5.Bd328836.1%58.7%0.06 MB
C00French, Chigorin variation28729.6%51.4%0.07 MB
A22English, Bremen, reverse dragon28334.6%50.5%0.06 MB
A17English, Nimzo-English opening28131.7%54.6%0.07 MB
B10Caro-Kann, anti-Caro-Kann defence28028.9%55.2%0.06 MB
C77Ruy Lopez, Morphy defence28034.3%56.8%0.07 MB
D86Gruenfeld, exchange, classical variation28035.4%52.7%0.06 MB
A61Benoni, Nimzovich (knight's tour) variation27928.0%60.6%0.06 MB
C78Ruy Lopez, 5.O-O27533.8%59.5%0.06 MB
C92Ruy Lopez, closed, 9.h327533.5%56.4%0.07 MB
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation27433.2%55.3%0.06 MB
C10French, Paulsen variation27330.8%57.1%0.06 MB
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation26743.8%57.9%0.06 MB
B91Sicilian, Najdorf, Zagreb (fianchetto) variation26628.6%50.0%0.06 MB
B96Sicilian, Najdorf, 7.f426531.7%53.2%0.05 MB
A34English, symmetrical, three knights system26439.4%49.2%0.06 MB
A36English, ultra-symmetrical variation26433.7%53.2%0.06 MB
E73King's Indian, Averbakh system26428.8%51.5%0.06 MB
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd225728.4%61.3%0.06 MB
B70Sicilian, dragon variation25631.3%46.9%0.06 MB
A14English, Symmetrical, Keres defence25538.0%59.0%0.06 MB
A84Dutch defence25429.9%62.2%0.06 MB
B83Sicilian, modern Scheveningen25435.0%55.3%0.06 MB
D31QGD, semi-Slav24938.2%57.2%0.06 MB
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation24837.9%52.4%0.05 MB
A58Benko gambit, fianchetto variation24721.5%58.5%0.05 MB
C00French defence24732.4%51.4%0.06 MB
D52QGD, Cambridge Springs defence, Bogoljubow variation24632.5%55.3%0.06 MB
E91King's Indian, Kazakh variation24631.3%57.5%0.06 MB
D34QGD, Tarrasch, Prague variation, Normal position24435.7%62.9%0.06 MB
D04Queen's pawn game24233.9%52.5%0.06 MB
C41Philidor, Improved Hanham variation23936.4%53.8%0.06 MB
C11French, Steinitz variation23831.5%52.7%0.05 MB
D40QGD, Semi-Tarrasch defence23836.1%48.3%0.06 MB
C15French, Winawer (Nimzovich) variation23732.9%56.5%0.05 MB
C77Ruy Lopez, Anderssen variation23626.3%50.0%0.06 MB
A15English, 1...Nf6 (Anglo-Indian defense)23533.2%49.8%0.06 MB
A47Queen's Indian defence23528.9%53.6%0.06 MB
C16French, Winawer, advance variation23122.1%53.0%0.05 MB
E43Nimzo-Indian, Fischer variation23130.3%55.0%0.05 MB
E00Neo-Indian (Seirawan) attack23029.1%49.8%0.06 MB
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc23039.1%53.9%0.05 MB
D47QGD semi-Slav, neo-Meran (Lundin variation)22934.1%57.2%0.05 MB
B21Sicilian, Grand Prix attack22834.2%54.4%0.05 MB
D35QGD, exchange, positional line, 5...c622832.5%53.5%0.05 MB
A57Benko gambit22727.8%58.4%0.05 MB
B06Robatsch defence22429.0%59.2%0.05 MB
D92Gruenfeld, 5.Bf422433.5%58.3%0.05 MB
D17QGD Slav, Wiesbaden variation22325.1%63.2%0.05 MB
B18Caro-Kann, classical, 6.h422232.4%55.4%0.05 MB
B54Sicilian, Prins (Moscow) variation22234.2%50.5%0.05 MB
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation22133.9%66.3%0.05 MB
E91King's Indian, 6.Be222031.4%57.0%0.05 MB
A25English, Sicilian reversed21929.7%53.2%0.05 MB
C17French, Winawer, advance, 5.a321928.3%56.6%0.05 MB
D26QGA, classical variation21844.0%51.4%0.05 MB
B01Scandinavian defence21628.2%47.5%0.05 MB
C42Petrov, classical attack, Chigorin variation21645.4%55.1%0.05 MB
B80Sicilian, Scheveningen, fianchetto variation21537.7%53.3%0.05 MB
E86King's Indian, Saemisch, orthodox, 7.Nge2 c621218.9%54.7%0.04 MB
A11English, Caro-Kann defensive system21030.0%53.1%0.05 MB
A13English, Neo-Catalan accepted21031.0%57.4%0.05 MB
B88Sicilian, Sozin, Leonhardt variation21035.2%53.3%0.05 MB
E20Nimzo-Indian, Kmoch variation21026.2%56.4%0.05 MB
A42Pterodactyl defence20827.9%63.0%0.05 MB
D94Gruenfeld, 5.e320833.7%59.1%0.05 MB
A28English, four knights, Marini variation20735.7%55.6%0.05 MB
C00French, Labourdonnais variation20735.3%51.4%0.05 MB
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d520636.4%50.2%0.05 MB
E71King's Indian, Makagonov system (5.h3)20532.7%54.9%0.05 MB
C47Four knights, Scotch, 4...exd420243.6%49.5%0.05 MB
C64Ruy Lopez, classical (Cordel) defence20228.7%52.5%0.05 MB
D29QGA, classical, 8...Bb720233.2%41.8%0.04 MB
E67King's Indian, fianchetto, classical variation20234.7%52.0%0.05 MB
B13Caro-Kann, Panov-Botvinnik attack20134.3%53.5%0.04 MB
D13QGD Slav, exchange variation20135.3%54.0%0.05 MB
D49QGD semi-Slav, Meran, Sozin variation19933.7%47.5%0.04 MB
D63QGD, Orthodox defence, Swiss, Karlsbad variation19938.2%52.8%0.05 MB
D17QGD Slav, Krause attack19833.3%57.1%0.04 MB
D87Gruenfeld, exchange, Spassky variation19834.3%56.6%0.04 MB
A88Dutch, Leningrad, main variation with c619735.0%57.6%0.05 MB
B03Alekhine's defence, exchange variation19734.5%58.9%0.04 MB
B44Sicilian defence19731.0%55.1%0.05 MB
C00French defence, Steiner variation19732.5%46.2%0.04 MB
C49Four knights, symmetrical, Metger unpin19731.0%54.6%0.05 MB
A28English, four knights, 4.e319636.7%55.1%0.05 MB
D77Neo-Gruenfeld, 6.O-O19638.3%52.8%0.05 MB
B53Sicilian, Chekhover variation19441.2%49.5%0.05 MB
A09Reti, advance variation19329.5%47.9%0.04 MB
D00Levitsky attack (Queen's bishop attack)19134.6%51.3%0.04 MB
B07Pirc, Ufimtsev-Pytel variation18929.1%57.9%0.04 MB
A38English, symmetrical variation18837.2%52.1%0.04 MB
B12Caro-Kann, Tartakower (fantasy) variation18837.2%51.1%0.04 MB
A16English opening18732.1%55.6%0.05 MB
C25Vienna game18733.7%48.9%0.04 MB
C69Ruy Lopez, exchange, Gligoric variation18739.6%57.2%0.04 MB
D78Neo-Gruenfeld, 6.O-O c618738.0%55.9%0.04 MB
E34Nimzo-Indian, classical, Noa variation18542.7%50.5%0.05 MB
E96King's Indian, orthodox, 7...Nbd7, main line18531.9%54.9%0.04 MB
A48King's Indian, London system18427.7%56.3%0.05 MB
B04Alekhine's defence, modern, Larsen variation18332.2%58.7%0.04 MB
E15Queen's Indian, 4.g318333.9%54.6%0.04 MB
D73Neo-Gruenfeld, 5.Nf318233.5%55.8%0.04 MB
D41QGD, Semi-Tarrasch, 5.cd18037.2%58.6%0.05 MB
B07Robatsch defence, Geller's system17836.0%57.3%0.04 MB
C69Ruy Lopez, exchange, Bronstein variation17633.0%51.7%0.04 MB
A14English, Neo-Catalan declined17540.6%48.3%0.04 MB
A46Queen's pawn, Yusupov-Rubinstein system17536.0%52.9%0.04 MB
D93Gruenfeld with Bf4 e317541.1%60.6%0.04 MB
A55Old Indian, main line17427.0%61.2%0.04 MB
B42Sicilian, Kan, Gipslis variation17331.2%57.8%0.04 MB
A62Benoni, fianchetto variation17226.7%58.7%0.04 MB
C72Ruy Lopez, modern Steinitz defence, 5.O-O17233.7%59.3%0.04 MB
A10English, Anglo-Dutch defense17035.3%52.9%0.04 MB
A25English, closed, 5.Rb116934.9%51.8%0.04 MB
C45Scotch, Mieses variation16736.5%50.6%0.03 MB
A40Modern defence16634.9%54.8%0.04 MB
A30English, symmetrical, hedgehog, flexible formation16540.6%56.7%0.04 MB
B00King's pawn opening16533.3%61.5%0.04 MB
C46Four knights game16531.5%50.3%0.04 MB
C98Ruy Lopez, closed, Chigorin, 12...Nc616521.2%60.3%0.04 MB
E12Queen's Indian defence16527.3%55.5%0.04 MB
A08Reti, King's Indian attack, French variation16434.8%58.8%0.04 MB
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb616436.0%54.6%0.04 MB
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system16440.9%47.9%0.04 MB
B20Sicilian, Steinitz variation16230.9%53.7%0.04 MB
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)16240.1%53.4%0.04 MB
C96Ruy Lopez, closed, Keres (...Nd7) defence16136.0%67.7%0.04 MB
A37English, symmetrical, Botvinnik system reversed16034.4%54.1%0.04 MB
B42Sicilian, Kan, Swiss cheese variation16029.4%55.9%0.04 MB
E35Nimzo-Indian, classical, Noa variation, 5.cd ed16037.5%55.6%0.04 MB
A05Reti, King's Indian attack, Spassky's variation15838.0%57.6%0.04 MB
E17Queen's Indian, old main line, 6.O-O15827.8%52.5%0.04 MB
E30Nimzo-Indian, Leningrad variation15728.7%50.6%0.04 MB
A04Reti v Dutch15532.9%59.0%0.04 MB
A22English opening15328.1%51.3%0.04 MB
D19QGD Slav, Dutch variation, main line15339.9%55.2%0.03 MB
B05Alekhine's defence, modern variation, 4...Bg415230.3%63.2%0.03 MB
A37English, symmetrical variation15029.3%