CCRL 40/15
Downloads and Statistics
May 8, 2021
Testing summary:
Total: 1'242'291 games
played by 2'843 programs

White wins: 425'658 (34.3%)
Black wins: 312'703 (25.2%)
Draws: 503'930 (40.6%)
White score: 54.5%

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
Commented
PGN
B90Sicilian, Najdorf, Byrne (English) attack2340036.2%53.3%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1790842.0%56.5%
A15English opening1654944.1%53.8%
B12Caro-Kann, advance variation1446538.3%56.4%
D45QGD semi-Slav, Stoltz variation1390044.1%53.2%
A04Reti opening1266338.7%54.6%
D43QGD semi-Slav1041242.7%53.1%
A20English opening1025839.0%53.4%
A00Benko's opening1015740.4%52.0%
B06Robatsch (modern) defence967235.6%56.3%
E12Queen's Indian, Petrosian system887143.8%54.3%
B22Sicilian, Alapin's variation (2.c3)857043.6%54.6%
E32Nimzo-Indian, classical variation835543.7%53.9%
A07Reti, King's Indian attack (Barcza system)819041.2%53.4%
B40Sicilian defence817539.1%54.0%
D30Queen's gambit declined813745.1%55.3%
A29English, four knights, kingside fianchetto804041.9%52.3%
D37QGD, 4.Nf3790147.2%53.5%
A45Trompovsky attack (Ruth, Opovcensky opening)763035.3%53.2%
D02Queen's pawn game754441.5%53.2%
D47QGD semi-Slav, Meran, Wade variation737940.0%53.4%
B50Sicilian694340.1%52.6%
D11QGD Slav, 4.e3680143.9%55.5%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)660738.5%56.5%
B92Sicilian, Najdorf, Opovcensky variation648741.8%53.4%
D38QGD, Ragozin variation646946.9%53.2%
C65Ruy Lopez, Berlin defence638341.2%52.1%
E10Queen's pawn game619745.1%55.2%
C11French, Burn variation619545.6%53.1%
E04Catalan, open, 5.Nf3615945.2%53.7%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6614134.0%51.9%
E12Queen's Indian, 4.Nc3606441.0%53.2%
A05Reti opening598437.3%53.0%
D15QGD Slav, 4.Nc3582241.1%55.4%
D37QGD, classical variation (5.Bf4)571746.7%55.0%
A46Queen's pawn game571639.7%54.5%
D10QGD Slav defence555941.0%54.3%
D58QGD, Tartakower (Makagonov-Bondarevsky) system549447.2%52.1%
C67Ruy Lopez, Berlin defence, open variation546248.6%53.7%
B23Sicilian, closed521237.3%51.6%
D27QGA, classical, 6...a6509253.0%55.0%
A81Dutch defence506438.5%57.0%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)492934.4%56.0%
E00Catalan opening491042.4%55.1%
A30English, symmetrical variation488640.2%54.2%
A10English opening480637.3%54.8%
C07French, Tarrasch, open variation470947.8%54.3%
B17Caro-Kann, Steinitz variation467143.7%53.5%
B47Sicilian, Taimanov (Bastrikov) variation466642.2%54.4%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)461041.6%56.3%
C11French, Steinitz, Boleslavsky variation454836.2%57.1%
D12QGD Slav, 4.e3 Bf5451640.7%54.7%
A06Reti, Nimzovich-Larsen attack450439.3%49.6%
A01Nimzovich-Larsen attack, modern variation442838.7%50.5%
A02Bird's opening440636.6%49.4%
D85Gruenfeld, exchange variation439948.5%55.8%
B84Sicilian, Scheveningen (Paulsen), classical variation437940.0%52.4%
D11QGD Slav, 3.Nf3433441.9%55.4%
E06Catalan, closed, 5.Nf3432950.9%53.7%
A45Queen's pawn game432737.7%53.8%
E60King's Indian, 3.Nf3424141.0%57.2%
B43Sicilian, Kan, 5.Nc3420239.4%56.1%
D85Gruenfeld, modern exchange variation419047.9%56.3%
B90Sicilian, Najdorf418237.4%53.9%
B48Sicilian, Taimanov variation415637.9%56.4%
C91Ruy Lopez, closed, Bogolyubov variation415644.0%53.7%
B30Sicilian defence414540.7%54.4%
C88Ruy Lopez, closed, 7...O-O402642.1%52.9%
D20QGA, 3.e4399541.0%56.6%
B46Sicilian, Taimanov variation397739.2%55.8%
B27Sicilian, Hungarian variation394939.8%57.7%
B01Scandinavian (centre counter) defence387439.8%57.7%
A40Queen's pawn384834.8%55.0%
E21Nimzo-Indian, three knights variation380142.5%54.5%
C50Giuoco Pianissimo379140.9%53.0%
C53Giuoco Piano378240.2%52.6%
E15Queen's Indian, 4.g3378148.4%55.2%
A03Bird's opening376235.4%47.9%
B20Sicilian defence370834.1%50.2%
A80Dutch364734.9%54.6%
B01Scandinavian, Pytel-Wade variation352443.1%58.1%
C43Petrov, modern attack, Symmetrical variation343845.3%52.9%
A40Queen's pawn, Keres defence340642.4%56.3%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7329234.2%55.6%
B10Caro-Kann defence328935.7%52.6%
A30English, symmetrical, hedgehog system328147.2%56.1%
C03French, Tarrasch328043.5%57.0%
C45Scotch game326143.3%54.2%
A13English opening324937.6%52.9%
B08Pirc, classical system, 5.Be2323339.5%58.1%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)321843.8%54.3%
A21English, Kramnik-Shirov counterattack320138.2%51.9%
C10French, Rubinstein variation318848.6%55.8%
A41Queen's Pawn314635.6%56.0%
E81King's Indian, Saemisch, 5...O-O306435.3%55.1%
A07Reti, King's Indian attack305941.7%53.0%
E11Bogo-Indian defence, Gruenfeld variation300940.8%56.2%
C00French, King's Indian attack300236.1%51.6%
D00Levitsky attack (Queen's bishop attack)299136.1%50.7%
C19French, Winawer, advance, poisoned pawn variation298333.6%61.6%
A35English, symmetrical, four knights system292544.5%53.5%
B19Caro-Kann, classical, Spassky variation291340.5%56.5%
A00Polish (Sokolsky) opening291139.8%48.1%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack286539.9%55.0%
B23Sicilian, closed, 2...Nc6278039.9%52.6%
B00King's pawn opening274734.4%57.0%
A17English, Nimzo-English opening271439.9%53.9%
E60King's Indian, 3.g3270742.5%55.4%
B07Pirc defence266636.1%56.5%
A43Old Benoni defence266534.3%56.8%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7262042.4%50.7%
A00Dunst (Sleipner, Heinrichsen) opening257236.3%49.8%
B35Sicilian, accelerated fianchetto, modern variation with Bc4256143.7%53.8%
B81Sicilian, Scheveningen, Keres attack256034.5%60.2%
B42Sicilian, Kan, 5.Bd3255739.1%58.1%
E63King's Indian, fianchetto, Panno variation255438.1%56.8%
C44Ponziani, Jaenisch counter-attack251544.7%52.2%
B33Sicilian, Pelikan, Chelyabinsk variation249537.3%57.7%
C50Giuoco Piano249142.2%52.3%
B45Sicilian, Taimanov variation247038.5%56.8%
D02Queen's bishop game244941.6%53.3%
A48King's Indian, Torre attack243540.3%50.3%
E11Bogo-Indian defence234341.4%55.2%
D31QGD, Charousek (Petrosian) variation234246.5%54.3%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6232147.7%55.5%
D10QGD Slav defence, exchange variation231945.2%55.6%
B56Sicilian230339.3%53.2%
B53Sicilian, Chekhover variation229242.2%52.0%
A21English opening228832.4%55.4%
A01Nimzovich-Larsen attack, classical variation228235.0%49.2%
E14Queen's Indian, 4.e3227340.5%52.6%
A46Queen's pawn, Torre attack226236.9%52.4%
C02French, advance, Paulsen attack224533.8%54.9%
C84Ruy Lopez, closed defence222342.5%52.2%
C77Ruy Lopez, Anderssen variation221643.6%52.0%
A07Reti, King's Indian attack, Yugoslav variation220640.7%53.2%
C88Ruy Lopez, closed, anti-Marshall 8.a4220641.2%53.5%
A11English, Caro-Kann defensive system220140.2%53.4%
A33English, symmetrical variation220148.0%53.8%
B90Sicilian, Najdorf, Adams attack218640.5%53.8%
B18Caro-Kann, classical variation217845.8%54.6%
E18Queen's Indian, old main line, 7.Nc3217143.9%57.0%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation216946.4%51.6%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)215739.4%57.2%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation215049.0%55.3%
C01French, exchange variation214544.3%53.4%
A13English opening, Agincourt variation210540.1%55.0%
A22English, Bremen, Smyslov system209639.0%48.7%
A36English, ultra-symmetrical variation207338.6%52.4%
A05Reti, King's Indian attack206541.2%53.3%
B93Sicilian, Najdorf, 6.f4205540.3%51.1%
C78Ruy Lopez, Archangelsk (counterthrust) variation205243.1%55.2%
E11Bogo-Indian defence, Nimzovich variation203241.7%57.5%
A40Queen's pawn, Franco-Indian (Keres) defence203137.0%56.3%
B21Sicilian, Grand Prix attack202934.6%52.4%
C24Bishop's opening, Berlin defence199541.9%52.8%
C55Two knights defence (Modern bishop's opening)198239.5%55.8%
A16English opening196235.5%54.2%
A34English, symmetrical, three knights system195246.0%54.5%
E12Queen's Indian, Miles variation192743.5%53.3%
D39QGD, Ragozin, Vienna variation192449.6%51.1%
A15English, 1...Nf6 (Anglo-Indian defense)192338.8%55.0%
C45Scotch, Mieses variation191743.3%53.5%
B42Sicilian, Kan, Polugaievsky variation191338.2%54.9%
B97Sicilian, Najdorf, 7...Qb6191234.9%47.3%
C42Petrov, classical attack, Jaenisch variation190846.7%58.4%
C42Petrov, Nimzovich attack190546.1%55.2%
A04Reti v Dutch189332.9%57.3%
A80Dutch, 2.Bg5 variation188832.7%54.2%
A48King's Indian, London system188440.0%53.1%
D19QGD Slav, Dutch variation186241.6%56.9%
A40Modern defence185735.6%57.0%
A41Old Indian, Tartakower (Wade) variation184133.4%59.3%
C02French, advance, Euwe variation184136.6%55.5%
B96Sicilian, Najdorf, 7.f4182536.9%51.9%
E92King's Indian, Gligoric-Taimanov system179535.8%58.6%
A49King's Indian, fianchetto without c4176941.3%55.6%
D00Queen's pawn, Mason variation176538.9%53.1%
B10Caro-Kann, anti-anti-Caro-Kann defence176049.0%53.1%
A41Old Indian defence174932.5%53.8%
A09Reti, advance variation172736.5%48.8%
C02French, advance variation171932.1%56.5%
E61King's Indian defence, 3.Nc3171736.2%55.8%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation170741.0%57.1%
D27QGA, classical, Rubinstein variation170548.7%56.7%
C08French, Tarrasch, open, 4.ed ed169751.6%54.6%
A13English, Neo-Catalan accepted169447.9%55.8%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)169439.8%49.7%
B33Sicilian, Sveshnikov variation167040.4%50.8%
D47QGD semi-Slav, Meran variation166449.9%53.5%
B09Pirc, Austrian attack, 6.Bd3165940.2%60.3%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3165445.0%52.8%
B01Scandinavian defence164439.6%58.5%
D80Gruenfeld defence164046.4%53.8%
A34English, symmetrical variation163039.9%53.9%
E68King's Indian, fianchetto, classical variation, 8.e4160740.4%59.6%
E19Queen's Indian, old main line, 9.Qxc3159847.4%58.1%
B95Sicilian, Najdorf, 6...e6159038.7%50.2%
A62Benoni, fianchetto variation158635.8%55.8%
D31QGD, semi-Slav158240.1%53.8%
D48QGD semi-Slav, Meran, 8...a6156150.2%49.1%
C05French, Tarrasch, closed variation155631.2%60.5%
E60King's Indian defence155433.8%55.3%
A31English, symmetrical, Benoni formation153340.1%55.7%
A53Old Indian defence153137.6%58.7%
C78Ruy Lopez, 5.O-O150946.8%54.6%
A48King's Indian, East Indian defence148739.4%52.7%
A28English, four knights, 4.e3148239.3%52.2%
B10Caro-Kann, closed (Breyer) variation147438.1%53.2%
C41Philidor, Improved Hanham variation147139.2%57.9%
B57Sicilian, Sozin, Benko variation147039.4%51.7%
B90Sicilian, Najdorf, Lipnitzky attack146737.7%50.3%
B54Sicilian145637.9%55.2%
E70King's Indian, 4.e4145433.2%58.5%
B11Caro-Kann, Two knights, 3...Bg4145140.1%55.1%
D86Gruenfeld, exchange, classical variation145046.6%55.9%
B80Sicilian, Scheveningen variation144732.1%54.3%
D31QGD, semi-Slav, Marshall gambit144443.0%55.0%
C48Four knights, Rubinstein counter-gambit143742.4%52.0%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7143238.4%56.8%
B13Caro-Kann, Panov-Botvinnik attack142948.1%52.6%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation142835.4%55.4%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc142448.9%55.6%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack142435.9%58.7%
E73King's Indian, Averbakh system142234.7%56.2%
D35QGD, exchange, positional line142041.8%54.5%
D04Queen's pawn game141939.3%51.6%
C88Ruy Lopez, closed140942.2%53.3%
A27English, three knights system140631.5%52.1%
A57Benko gambit140535.2%56.4%
A37English, symmetrical variation139641.6%51.1%
A90Dutch defence139538.9%60.3%
C80Ruy Lopez, open, 8...Be6139137.9%44.0%
B13Caro-Kann, exchange variation138640.6%52.4%
E20Nimzo-Indian, Kmoch variation138638.4%53.6%
D00Queen's pawn game138138.4%50.8%
B94Sicilian, Najdorf, 6.Bg5136938.6%53.2%
A88Dutch, Leningrad, main variation with c6136340.6%58.5%
C11French, Steinitz variation135237.8%54.7%
E17Queen's Indian, old main line, 6.O-O135143.7%57.8%
C91Ruy Lopez, closed, 9.d4134838.9%58.5%
C00French, Chigorin variation134731.8%50.4%
D53QGD, 4.Bg5 Be7134346.0%55.2%
E90King's Indian, 5.Nf3134333.9%57.1%
C09French, Tarrasch, open variation, main line134251.9%56.7%
B20Sicilian, Keres variation (2.Ne2)133438.7%52.0%
D31QGD, 3.Nc3133239.8%54.6%
D20Queen's gambit accepted133046.3%55.0%
C42Petrov, classical attack132149.7%57.6%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation131541.5%53.9%
B97Sicilian, Najdorf, Poisoned pawn variation131546.2%50.7%
C15French, Winawer (Nimzovich) variation131541.2%54.8%
D07QGD, Chigorin defence130736.4%57.5%
E46Nimzo-Indian, Reshevsky variation130045.0%51.1%
A57Benko gambit half accepted129939.8%58.6%
C19French, Winawer, advance, positional main line129831.0%58.7%
D30QGD, Vienna variation128653.2%52.3%
C42Petrov, classical attack, Marshall variation128444.6%58.1%
C90Ruy Lopez, closed (with ...d6)128338.3%51.9%
A14English, Neo-Catalan declined127245.3%54.6%
A50Queen's pawn game126537.5%56.2%
E94King's Indian, orthodox variation126239.7%55.3%
B04Alekhine's defence, modern, Larsen variation125542.8%59.2%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3125342.9%58.2%
C69Ruy Lopez, exchange variation, 5.O-O125342.7%53.0%
B29Sicilian, Nimzovich-Rubinstein variation125239.9%58.4%
B32Sicilian defence125039.0%55.4%
A46Queen's pawn, Yusupov-Rubinstein system124741.4%52.4%
A10English, Anglo-Dutch defense122732.5%51.5%
E39Nimzo-Indian, classical, Pirc variation122341.3%55.0%
A25English, Sicilian reversed121633.6%53.5%
D30QGD121547.5%51.4%
A28English, four knights, Marini variation120839.2%50.2%
B36Sicilian, accelerated fianchetto, Maroczy bind120745.5%58.4%
C16French, Winawer, advance variation120432.9%56.9%
A13English, Neo-Catalan120342.8%52.3%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation119645.1%55.6%
B76Sicilian, dragon, Yugoslav attack, Rauser variation117434.2%62.8%
C06French, Tarrasch, closed variation, main line117239.0%59.8%
B89Sicilian, Sozin, 7.Be3116237.7%51.5%
B06Robatsch defence, Two knights, Suttles variation115638.1%58.0%
D35QGD, exchange, positional line, 5...c6115044.5%56.3%
D78Neo-Gruenfeld, 6.O-O c6114745.2%52.7%
D05Queen's pawn game113939.9%51.9%
E34Nimzo-Indian, classical, Noa variation113552.7%53.7%
A58Benko gambit accepted113237.7%57.7%
D73Neo-Gruenfeld, 5.Nf3112951.1%55.8%
D91Gruenfeld, 5.Bg5112840.9%48.5%
E71King's Indian, Makagonov system (5.h3)112835.7%59.5%
C41Philidor, exchange variation112537.9%59.8%
E94King's Indian, orthodox, 7...Nbd7112035.4%60.0%
E41Nimzo-Indian, 4.e3 c5111544.6%54.8%
C00French defence111430.3%56.3%
D80Gruenfeld, Stockholm variation111445.0%53.7%
B06Robatsch defence111336.1%58.8%
C10French, Paulsen variation111330.5%60.2%
C80Ruy Lopez, open, Bernstein variation110849.7%62.8%
D13QGD Slav, exchange variation110849.0%55.1%
A06Reti opening110338.2%52.7%
A22English opening109936.8%50.8%
A56Benoni defence109333.7%60.3%
B70Sicilian, dragon variation108443.7%52.1%
B00KP, Nimzovich defence108332.7%58.7%
B40Sicilian, Anderssen variation107940.4%57.1%
A09Reti opening107239.5%54.2%
A07Reti, King's Indian attack, Keres variation107037.3%54.3%
B21Sicilian, Smith-Morra gambit106640.3%47.8%
B12Caro-Kann, Tartakower (fantasy) variation105037.6%55.7%
B44Sicilian, Szen (`anti-Taimanov') variation104842.9%53.0%
A37English, symmetrical, Botvinnik system reversed104039.8%51.9%
B23Sicilian, Grand Prix attack103737.0%49.3%
D00Queen's pawn, Chigorin variation103534.7%51.9%
D90Gruenfeld, Three knights variation103549.5%53.7%
E30Nimzo-Indian, Leningrad variation102934.2%50.0%
C46Four knights game102442.0%51.1%
A01Nimzovich-Larsen attack102236.8%51.7%
B28Sicilian, O'Kelly variation102236.9%58.3%
A28English, four knights, Nimzovich variation102137.3%53.9%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1101927.2%61.5%
B23Sicilian, chameleon variation101335.9%57.1%
D17QGD Slav, Krause attack100540.9%58.6%
D92Gruenfeld, 5.Bf4100446.3%56.0%
C00French defence, Steiner variation100242.7%51.6%
A85Dutch with c4 & Nc3100133.2%54.9%
C72Ruy Lopez, modern Steinitz defence, 5.O-O98641.5%57.5%
D44QGD semi-Slav, anti-Meran gambit98634.6%58.3%
C69Ruy Lopez, exchange, Gligoric variation98444.7%54.6%
B08Pirc, classical (two knights) system97738.0%58.9%
A23English, Bremen system, Keres variation97440.6%50.9%
B09Pirc, Austrian attack, dragon formation97439.9%58.2%
A10English, Adorjan defence97039.1%51.9%
D77Neo-Gruenfeld, 6.O-O97048.0%55.1%
B60Sicilian, Richter-Rauzer96936.0%58.5%
B04Alekhine's defence, modern, fianchetto variation96338.0%57.6%
E01Catalan, closed96248.5%54.7%
A25English, closed system95635.9%53.7%
D26QGA, classical variation95451.7%53.8%
E17Queen's Indian, Opovcensky variation95340.6%55.6%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)95048.6%54.6%
D03Torre attack (Tartakower variation)94138.9%50.8%
D01Richter-Veresov attack93332.9%47.7%
B87Sicilian, Sozin with ...a6 and ...b593037.2%49.7%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd392946.4%52.0%
C45Scotch, Schmidt variation92651.4%48.5%
C99Ruy Lopez, closed, Chigorin, 12...c5d492440.4%62.9%
C26Vienna, Paulsen-Mieses variation92339.9%52.7%
C90Ruy Lopez, closed, Pilnik variation92136.0%52.2%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed91449.2%51.1%
A01Nimzovich-Larsen attack, symmetrical variation91240.8%50.1%
D30QGD, Hastings variation90348.0%52.8%
C14French, classical, Steinitz variation89936.6%58.8%
B03Alekhine's defence, exchange variation89338.9%59.5%
D41QGD, Semi-Tarrasch, 5.cd88450.2%56.7%
A42Modern defence, Averbakh system88333.3%59.1%
D00Queen's pawn, Mason variation, Steinitz counter-gambit88340.8%51.5%
A70Benoni, classical with e4 and Nf388238.1%60.2%
C97Ruy Lopez, closed, Chigorin defence88032.2%63.4%
A84Dutch defence87836.9%56.7%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation87032.2%62.5%
D14QGD Slav, exchange variation, 6.Bf4 Bf586852.8%52.4%
C69Ruy Lopez, exchange, Bronstein variation86738.2%50.7%
A32English, symmetrical variation86645.0%54.2%
E91King's Indian, 6.Be286434.1%63.6%
A22English, Bremen, reverse dragon86140.5%51.2%
B54Sicilian, Prins (Moscow) variation86038.8%54.9%
B89Sicilian, Velimirovic attack85834.3%51.9%
A33English, symmetrical, Geller variation85640.4%54.0%
D45QGD semi-Slav, 5...Nd785340.6%51.6%
D48QGD semi-Slav, Meran, Reynolds' variation84439.3%56.3%
B26Sicilian, closed, 6.Be384233.8%50.1%
A47Queen's Indian defence84137.6%50.8%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d583844.3%52.3%
E12Queen's Indian defence83541.4%53.4%
D34QGD, Tarrasch, Prague variation, Normal position83151.1%56.4%
E38Nimzo-Indian, classical, 4...c582639.6%59.5%
E43Nimzo-Indian, Fischer variation82336.6%53.3%
A08Reti, King's Indian attack82241.7%52.7%
B05Alekhine's defence, modern variation, 4...Bg481832.6%64.6%
B49Sicilian, Taimanov variation81844.3%57.5%
C95Ruy Lopez, closed, Breyer, Borisenko variation81539.6%56.7%
B10Caro-Kann, anti-Caro-Kann defence81331.6%60.0%
B02Alekhine's defence81034.3%54.7%
C78Ruy Lopez, Moeller defence80842.8%54.7%
B10Caro-Kann, Two knights variation80538.1%57.3%
E59Nimzo-Indian, 4.e3, main line80543.6%53.9%
D17QGD Slav, Wiesbaden variation80342.3%57.4%
C36KGA, Abbazia defence, modern variation80139.6%47.8%
D82Gruenfeld, 4.Bf480143.8%53.9%
B07Robatsch defence, Geller's system79436.4%57.5%
D81Gruenfeld, Russian variation78542.0%58.7%
C10French, Fort Knox variation78340.7%57.3%
C45Scotch, Potter variation77940.4%52.2%
D02Queen's pawn game, Chigorin variation77240.0%56.4%
E44Nimzo-Indian, Fischer variation, 5.Ne276739.4%55.3%
E92King's Indian, Petrosian system, Stein variation76734.2%54.0%
C96Ruy Lopez, closed (10...c5)76333.4%66.4%
B18Caro-Kann, classical, 6.h475842.6%54.6%
E84King's Indian, Saemisch, Panno main line74536.5%54.4%
D02Queen's pawn game, Krause variation74241.9%55.2%
B01Scandinavian, Marshall variation74043.2%59.9%
D79Neo-Gruenfeld, 6.O-O, main line74050.8%53.6%
E52Nimzo-Indian, 4.e3, main line with ...b673941.5%50.8%
C42Petrov, classical attack, Chigorin variation73543.0%57.6%
A19English, Mikenas-Carls, Sicilian variation73139.0%54.5%
B07Pirc, Ufimtsev-Pytel variation72534.8%58.1%
B88Sicilian, Sozin, Leonhardt variation72539.3%55.1%
B39Sicilian, accelerated fianchetto, Breyer variation72341.6%58.3%
A05Reti, King's Indian attack, Spassky's variation72043.3%51.3%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system71945.5%54.9%
B41Sicilian, Kan, Maroczy bind (Reti variation)71837.7%58.7%
E22Nimzo-Indian, Spielmann variation71739.1%53.3%
A28English, four knights, Capablanca variation71538.5%53.8%
E80King's Indian, Saemisch variation71534.1%58.7%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd269837.0%62.0%
A38English, symmetrical variation69644.3%54.9%
C02French, advance, Steinitz variation69540.1%57.5%
C18French, Winawer, advance variation69427.4%62.5%
D87Gruenfeld, exchange, Spassky variation69444.5%56.4%
B24Sicilian, closed69037.0%51.1%
A01Nimzovich-Larsen attack, Indian variation68937.3%49.9%
A39English, symmetrical, main line with d468842.0%56.2%
C28Vienna game68540.1%51.9%
E67King's Indian, fianchetto, classical variation68442.1%55.3%
B99Sicilian, Najdorf, 7...Be7 main line68230.2%53.7%
E16Queen's Indian, Capablanca variation67743.6%57.1%
B06Robatsch defence, Pseudo-Austrian attack67236.6%53.7%
C88Ruy Lopez, Trajkovic counter-attack67242.1%52.2%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb667246.7%57.3%
C29Vienna gambit66937.2%49.7%
A61Benoni defence66733.4%61.4%
C65Ruy Lopez, Berlin defence, Beverwijk variation66539.5%57.5%
C89Ruy Lopez, Marshall counter-attack66552.9%54.3%
D25QGA, Janowsky-Larsen variation66541.8%58.5%
A50Kevitz-Trajkovich defence66233.2%56.2%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation66233.4%60.0%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd465441.7%55.4%
E00Queen's pawn game65238.7%56.4%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c665032.9%53.4%
D08QGD, Albin counter-gambit64838.1%55.3%
B33Sicilian defence64739.7%55.3%
A28English, four knights, Romanishin variation64650.6%52.2%
C50Giuoco Pianissimo, Italian four knights variation64641.3%51.8%
A56Benoni defence, Hromodka system64526.7%62.3%
B16Caro-Kann, Bronstein-Larsen variation64433.1%60.6%
B20Sicilian, Steinitz variation64438.5%50.9%
D30QGD Slav64346.2%55.0%
A89Dutch, Leningrad, main variation with Nc664035.5%61.8%
C61Ruy Lopez, Bird's defence64037.7%56.6%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence63842.3%53.4%
D32QGD, Tarrasch defence63545.7%54.0%
B82Sicilian, Scheveningen, 6.f463236.4%56.6%
C47Four knights, Scotch, 4...exd463253.8%52.7%
D34QGD, Tarrasch, Prague variation, 9.Bg562946.7%58.8%
A50Queen's Indian accelerated62540.3%57.0%
B34Sicilian, accelerated fianchetto, modern variation62439.1%53.2%
B83Sicilian, Scheveningen, 6.Be262341.1%53.0%
A14English, Symmetrical, Keres defence62148.1%57.4%
A00Van't Kruijs opening62040.2%50.9%
C42Petrov, Cozio (Lasker) attack61650.0%51.9%
A65Benoni, 6.e461532.8%58.0%
A25English, closed, 5.Rb161338.7%52.4%
D56QGD, Lasker defence61050.3%53.4%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation60937.8%53.9%
C77Ruy Lopez, Wormald (Alapin) attack60842.8%53.0%
A22English, Carls' Bremen system60737.6%54.2%
A55Old Indian, main line60635.8%58.5%
A61Benoni, Nimzovich (knight's tour) variation60429.1%59.6%
A87Dutch, Leningrad, main variation60339.0%56.0%
B83Sicilian, modern Scheveningen, main line60244.9%53.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc259748.9%60.3%
C04French, Tarrasch, Guimard main line59529.2%60.8%
C60Ruy Lopez, Cozio defence59140.3%53.6%
D16QGD Slav, Soultanbeieff variation59051.4%52.1%
C63Ruy Lopez, Schliemann defence58742.8%57.7%
D17QGD Slav, Carlsbad variation58740.0%61.6%
B15Caro-Kann, Tartakower (Nimzovich) variation58642.7%56.3%
C70Ruy Lopez, Cozio defence deferred58442.5%54.8%
E56Nimzo-Indian, 4.e3, main line with 7...Nc658451.7%55.5%
C17French, Winawer, advance, 5.a358236.6%63.7%
A96Dutch, classical variation57935.9%59.2%
E69King's Indian, fianchetto, classical main line57933.7%62.8%
B07Pirc, Byrne variation57833.9%57.1%
B83Sicilian, modern Scheveningen57443.7%50.4%
B08Pirc, classical, h3 system57338.4%58.8%
E53Nimzo-Indian, 4.e3, main line with ...c557344.9%55.4%
E95King's Indian, orthodox, 7...Nbd7, 8.Re156539.1%56.0%
D52QGD, Cambridge Springs defence, Yugoslav variation56240.0%56.9%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation56241.5%54.4%
B25Sicilian, closed, 6.f456039.1%49.4%
B74Sicilian, dragon, classical, 9.Nb356049.3%49.1%
C63Ruy Lopez, Schliemann defence, Berger variation56045.0%57.0%
E74King's Indian, Averbakh, 6...c555939.4%58.0%
E41Nimzo-Indian, e3, Huebner variation55534.4%50.9%
D52QGD, Cambridge Springs defence, Bogoljubow variation55251.1%55.6%
E17Queen's Indian, anti-Queen's Indian system55142.6%54.0%
C44Ponziani, Steinitz variation54841.8%46.1%
C89Ruy Lopez, Marshall, main line, 14...Qh354852.0%51.4%
A18English, Mikenas-Carls, Flohr variation54741.3%59.0%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation54742.6%57.1%
D22QGA, Alekhine defence54541.8%57.6%
E70King's Indian, Kramer system54231.5%57.5%
A01Nimzovich-Larsen attack, English variation53935.6%49.4%
D36QGD, exchange, positional line, 6.Qc253943.4%55.5%
D97Gruenfeld, Russian, Prins variation53946.0%56.4%
E16Queen's Indian, Yates variation53842.6%57.9%
D96Gruenfeld, Russian variation53341.8%51.9%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation53239.7%54.2%
B02Alekhine's defence, Scandinavian variation53037.5%55.6%
D23QGA, Mannheim variation53042.5%53.9%
D17QGD Slav, Czech defence52949.0%55.7%
A34English, symmetrical, Rubinstein system52840.3%51.8%
D45QGD semi-Slav, 5.e352838.3%57.0%
A09Reti accepted52738.7%52.6%
D94Gruenfeld, 5.e352744.4%56.2%
A52Budapest, Rubinstein variation52242.7%61.8%
B75Sicilian, dragon, Yugoslav attack51932.6%57.7%
C26Vienna game51941.4%54.0%
A00Anderssen's opening51741.0%50.3%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O51629.3%56.7%
D50QGD, 4.Bg551439.7%58.8%
B00Owen defence51333.7%60.7%
B58Sicilian, Boleslavsky variation51237.5%48.4%
C80Ruy Lopez, open, 7.Bb351241.4%53.3%
A84Dutch defence, Rubinstein variation51131.9%57.4%
E36Nimzo-Indian, classical, Noa variation, 5.a351145.4%53.6%
E87King's Indian, Saemisch, orthodox, 7.d550827.2%57.1%
D30QGD, Capablanca-Duras variation50644.5%53.1%
C41Philidor's defence50335.8%59.0%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)50139.5%55.1%
C64Ruy Lopez, classical defence, Benelux variation 49940.9%55.9%
D21QGA, 3.Nf349942.7%57.6%
E24Nimzo-Indian, Saemisch variation49938.7%53.0%
D90Gruenfeld, Flohr variation49841.0%52.8%
C19French, Winawer, advance, 6...Ne749634.9%60.8%
E88King's Indian, Saemisch, orthodox, 7.d5 c649433.4%58.0%
C62Ruy Lopez, old Steinitz defence49136.9%55.7%
A40Queen's pawn, English defence49045.5%57.2%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation48939.9%59.0%
A28English, four knights system48641.6%52.9%
B02Alekhine's defence, Saemisch attack48635.0%49.8%
C87Ruy Lopez, closed, Averbach variation48541.0%59.9%
D46QGD semi-Slav, Chigorin defence48445.9%55.0%
A54Old Indian, Ukrainian variation, 4.Nf348336.6%54.6%
D40QGD, Semi-Tarrasch defence48342.4%54.6%
D35QGD, exchange variation47842.1%56.0%
D15QGD Slav, Schlechter variation47645.4%59.9%
E83King's Indian, Saemisch, Panno formation47337.2%56.9%
B15Caro-Kann, Gurgenidze system47237.3%58.1%
D09QGD, Albin counter-gambit, 5.g347242.6%56.5%
D18QGD Slav, Dutch variation47041.3%58.7%
B73Sicilian, dragon, classical, 8.O-O46947.5%53.6%
A00Saragossa opening46729.6%51.0%
C92Ruy Lopez, closed, 9.h345943.1%53.6%
C22Centre game45737.2%46.0%
D61QGD, Orthodox defence, Rubinstein variation45746.6%53.3%
A26English, closed system45638.2%51.5%
C42Petrov's defence45541.5%53.1%
C18French, Winawer, classical variation45431.3%58.6%
C25Vienna game45235.6%57.6%
D55QGD, Neo-orthodox variation, 7.Bxf645248.2%52.4%
D42QGD, Semi-Tarrasch, 7.Bd344947.0%54.7%
C22Centre game, Berger variation44838.8%52.0%
A56Czech Benoni defence44726.8%66.0%
B71Sicilian, dragon, Levenfish variation44736.5%52.7%
C22Centre game, Paulsen attack44337.9%53.7%
C52Evans gambit44239.6%49.2%
B14Caro-Kann, Panov-Botvinnik attack, 5...g643952.2%52.5%
E31Nimzo-Indian, Leningrad, main line43934.6%49.4%
A44Semi-Benoni (`blockade variation')43628.9%59.9%
A52Budapest, Adler variation43445.4%57.5%
C12French, MacCutcheon, Lasker variation, 8...g643436.6%59.3%
A13English, Romanishin gambit43341.8%56.7%
C17French, Winawer, advance, Bogolyubov variation43238.7%52.2%
B19Caro-Kann, classical, 7...Nd743149.4%52.6%
E92King's Indian, Andersson variation42755.7%48.2%
B76Sicilian, dragon, Yugoslav attack, 7...O-O42635.4%54.3%
C02French, advance, Wade variation42639.4%58.5%
E10Blumenfeld counter-gambit42542.1%55.6%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation42536.7%57.2%
D35QGD, exchange, Saemisch variation42448.6%53.8%
D71Neo-Gruenfeld, 5.cd42345.9%56.7%
C42Petrov three knights game42139.7%58.1%
A35English, symmetrical variation42035.7%50.2%
B06Robatsch defence, Two knights variation41832.5%59.6%
B07Pirc, Sveshnikov system41837.6%52.3%
B09Pirc, Austrian attack, 6.Be341832.8%57.1%
C59Two knights defence, Steinitz variation41733.1%48.0%
C64Ruy Lopez, classical defence, 4.c341643.5%57.8%
D93Gruenfeld with Bf4 e341649.3%55.6%
E15Queen's Indian, 4.g3 Bb741542.2%53.9%
E66King's Indian, fianchetto, Yugoslav Panno41533.0%57.7%
A51Budapest, Fajarowicz variation41440.1%56.8%
D55QGD, Petrosian variation41454.1%53.1%
A60Benoni defence41331.2%58.2%
B02Alekhine's defence, Two pawns' (Lasker's) attack41240.5%52.5%
B44Sicilian defence41243.0%53.0%
C44Scotch gambit, Dubois-Reti defence41242.7%53.9%
A16English, Anglo-Gruenfeld defense41043.2%54.8%
B85Sicilian, Scheveningen, classical main line40746.2%56.8%
A26English, Botvinnik system40236.8%53.2%
B32Sicilian, Labourdonnais-Loewenthal variation40238.8%57.0%
C69Ruy Lopez, exchange variation, Alapin gambit40044.3%50.9%
D98Gruenfeld, Russian, Smyslov variation40040.3%59.9%
A99Dutch, Ilyin-Genevsky variation with b339939.1%60.9%
B12Caro-Kann defence39732.5%57.3%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d539650.0%52.3%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation39636.6%59.7%
D31QGD, semi-Slav, Noteboom variation39538.5%50.6%
C33KGA, bishop's gambit39235.7%50.3%
C58Two knights defence39237.5%57.0%
C64Ruy Lopez, classical (Cordel) defence39242.3%54.1%
D70Neo-Gruenfeld defence39238.0%55.0%
C49Four knights, symmetrical, Metger unpin39137.6%51.5%
C13French, Albin-Alekhine-Chatard attack38931.1%55.7%
C40Latvian counter-gambit38929.6%59.5%
B25Sicilian, closed38635.2%50.3%
D26QGA, 4...e638144.9%54.2%
D29QGA, classical, 8...Bb738042.4%47.2%
D63QGD, Orthodox defence, Swiss, Karlsbad variation37944.9%54.6%
D06QGD, Marshall defence37842.1%55.4%
D31QGD, Janowski variation37842.6%54.6%
D41QGD, Semi-Tarrasch with e337846.6%56.9%
E08Catalan, closed, Qc2 & b337841.3%52.1%
A67Benoni, Taimanov variation37429.7%62.7%
B15Caro-Kann defence37431.0%55.3%
E91King's Indian, Kazakh variation37438.0%58.0%
C46Three knights game37331.1%59.8%
E76King's Indian, Four pawns attack37338.3%58.3%
C44Ponziani opening37230.9%46.1%
B98Sicilian, Najdorf variation37129.4%57.5%
D05Colle system37149.1%52.3%
D47QGD semi-Slav, neo-Meran (Lundin variation)37150.9%55.1%
B36Sicilian, accelerated fianchetto, Gurgenidze variation37048.6%60.5%
A17English, Queens Indian formation36937.7%58.4%
E28Nimzo-Indian, Saemisch variation36831.8%52.6%
D24QGA, 4.Nc336738.4%52.5%
E62King's Indian, fianchetto, Larsen system36741.4%60.8%
E25Nimzo-Indian, Saemisch, Keres variation36648.4%54.5%
C00French, Two knights variation36535.6%53.2%
C21Centre game36339.7%55.9%
C48Four knights, Spanish variation35749.9%55.5%
D66QGD, Orthodox defence, Bd3 line35748.2%56.9%
C23Bishop's opening35632.9%53.5%
A08Reti, King's Indian attack, French variation35338.8%49.7%
B32Sicilian, Flohr variation35237.2%58.4%
A00Mieses opening35032.0%50.0%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f435038.6%57.6%
C30King's gambit35037.1%57.1%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation34542.9%63.8%
E76King's Indian, Four pawns attack, dynamic line34336.2%52.2%
A18English, Mikenas-Carls variation34138.4%57.9%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence34126.4%56.9%
C86Ruy Lopez, Worrall attack, sharp line34141.3%52.9%
A42Pterodactyl defence34036.8%63.4%
B42Sicilian, Kan, Swiss cheese variation34035.9%61.2%
D28QGA, classical, 7...b533951.0%55.0%
B04Alekhine's defence, modern variation33836.1%60.9%
D06QGD, Grau (Sahovic) defence33833.4%59.9%
D10QGD Slav defence, Alekhine variation33838.2%57.5%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O33648.2%56.5%
A86Dutch, Leningrad variation33537.9%57.2%
C34KGA, Fischer defence33531.9%46.1%
E09Catalan, closed, main line33437.1%59.9%
A17English opening33338.7%53.0%
C42Petrov, Kaufmann attack33148.6%52.7%
C15French, Winawer, Alekhine (Maroczy) gambit33040.6%56.4%
D19QGD Slav, Dutch variation, main line33044.2%58.5%
C73Ruy Lopez, modern Steinitz defence, Alapin variation32834.5%50.5%
E13Queen's Indian, 4.Nc3, main line32636.2%53.1%
E65King's Indian, fianchetto, Yugoslav, 7.O-O32646.3%53.5%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d532544.3%49.8%
A80Dutch, Krejcik gambit32132.4%53.6%
A95Dutch, stonewall with Nc332132.4%58.9%
B57Sicilian, Sozin, not Scheveningen32141.4%55.6%
C77Ruy Lopez, Morphy defence32143.0%54.8%
C31KGD, Nimzovich counter-gambit32036.6%51.7%
D16QGD Slav, Steiner variation32038.1%61.9%
E40Nimzo-Indian, 4.e331935.1%55.8%
E62King's Indian, fianchetto with ...Nc631833.6%55.5%
D72Neo-Gruenfeld, 5.cd, main line31735.3%61.2%
E16Queen's Indian, Riumin variation31738.5%59.0%
E49Nimzo-Indian, 4.e3, Botvinnik system31745.1%56.0%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation31236.9%60.7%
B07Pirc, 150 attack31238.1%61.7%
C31KGD, Falkbeer counter-gambit31135.4%53.1%
D63QGD, Orthodox defence, 7.Rc130944.0%56.3%
C00French, Labourdonnais variation30829.5%45.0%
B03Alekhine's defence, four pawns attack30733.6%65.3%
E94King's Indian, orthodox, Donner variation30637.3%58.8%
A12English, Caro-Kann defensive system30535.4%51.8%
D10QGD Slav, Winawer counter-gambit30434.2%55.9%
B15Caro-Kann, Forgacs variation30245.0%56.6%
B86Sicilian, Sozin attack30244.7%53.1%
D11QGD Slav, Breyer variation30042.3%57.8%
A93Dutch, stonewall, Botwinnik variation29839.3%60.9%
C21Danish gambit29836.9%49.3%
E33Nimzo-Indian, classical, 4...Nc629736.0%55.7%
E20Nimzo-Indian defence29647.0%53.2%
E00Neo-Indian (Seirawan) attack29432.0%50.0%
A83Dutch, Staunton gambit, Staunton's line29239.4%50.2%
C16French, Winawer, Petrosian variation29232.5%55.7%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd29142.3%61.0%
C81Ruy Lopez, open, Howell attack28949.5%53.8%
E26Nimzo-Indian, Saemisch variation28937.0%55.9%
A02Bird, From gambit28732.8%53.3%
D70Neo-Gruenfeld (Kemeri) defence28639.2%53.1%
C50King's pawn game28535.4%60.5%
C51Evans gambit, Stone-Ware variation28531.9%54.9%
D35QGD, Harrwitz attack28549.8%55.8%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd528550.5%46.0%
A07Reti, King's Indian attack (with ...c5)27835.3%50.0%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation27845.0%58.1%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation27836.0%56.8%
C30KGD, classical variation27628.3%54.3%
C44Ponziani, Caro variation27643.8%49.5%
D14QGD Slav, exchange, Trifunovic variation27552.0%52.2%
A16English, Anglo-Gruenfeld, Czech defense27434.7%59.7%
C35KGA, Cunningham defence27428.5%51.5%
B33Sicilian, Pelikan, Bird variation27336.3%64.7%
C11French defence27345.1%54.4%
C73Ruy Lopez, modern Steinitz defence, Richter variation27346.9%50.5%
B41Sicilian, Kan variation27242.3%54.6%
C93Ruy Lopez, closed, Smyslov defence27140.6%59.0%
D44QGD semi-Slav, 5.Bg5 dc27148.3%49.3%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)26951.7%54.5%
B77Sicilian, dragon, Yugoslav attack, 9...Bd726838.8%56.7%
E75King's Indian, Averbakh, main line26733.7%57.3%
C49Four knights, double Ruy Lopez26642.5%56.6%
D16QGD Slav accepted, Alapin variation26638.7%64.5%
C43Petrov, modern attack, main line26448.5%57.6%
C44Scotch, Goering gambit26442.0%54.0%
C83Ruy Lopez, open, classical defence26448.5%59.8%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc326447.7%58.0%
B12Caro-Kann, 3.Nd226336.1%59.9%
D99Gruenfeld defence, Smyslov, main line26342.2%58.7%
C75Ruy Lopez, modern Steinitz defence26243.1%52.9%
C77Ruy Lopez, four knights (Tarrasch) variation26245.4%55.5%
A64Benoni, fianchetto, 11...Re826139.8%49.8%
C48Four knights, Spanish, classical defence26045.4%49.6%
B23Sicilian, closed, Korchnoi variation25847.7%50.2%
B58Sicilian, classical25842.6%49.2%
C00French, Schlechter variation25842.6%52.3%
C27Vienna game25842.2%52.5%
D00Blackmar gambit25837.6%40.9%
A45Blackmar-Diemer gambit25727.6%52.3%
B80Sicilian, Scheveningen, fianchetto variation25730.4%51.8%
C42Petrov, Paulsen attack25742.8%51.0%
C00French, Reti (Spielmann) variation25635.5%51.4%
C46Three knights, Steinitz variation25627.3%57.0%
C65Ruy Lopez, Berlin defence, 4.O-O25642.2%59.0%
C89Ruy Lopez, Marshall counter-attack, 11...c625446.5%55.1%
D52QGD25439.8%54.9%
B44Sicilian, Szen, hedgehog variation25241.3%50.8%
C54Giuoco Piano25153.4%50.2%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation25139.4%56.4%
D33QGD, Tarrasch, Folkestone (Swedish) variation25048.4%56.2%
C46Four knights, Italian variation24944.2%47.4%
E05Catalan, open, classical line24752.6%57.9%
A24English, Bremen system with ...g624638.6%49.4%
C96Ruy Lopez, closed, Keres (...Nd7) defence24537.6%66.1%
E40Nimzo-Indian, 4.e3, Taimanov variation24535.1%60.0%
C50Hungarian defence24441.0%50.0%
D51QGD, 5...c624449.6%51.0%
B09Pirc, Austrian attack24337.9%60.1%
C12French, MacCutcheon, Lasker variation24328.8%60.9%
E02Catalan, open, 5.Qa424346.5%58.6%
A13English, Wimpey system24248.3%46.9%
E10Dzindzikhashvili defence24243.0%52.5%
A91Dutch defence24133.2%52.7%
D94Gruenfeld, Opovcensky variation24144.4%52.1%
C89Ruy Lopez, Marshall, main line, 12.d2d424040.8%62.5%
D52QGD, Cambridge Springs defence, Rubinstein variation23940.6%55.4%
A77Benoni, classical, 9...Re8, 10.Nd223733.8%63.7%
C34KGA, Schallop defence23630.5%53.8%
C48Four knights, Rubinstein counter-gambit, exchange variation23567.2%52.3%
D22QGA, Haberditz variation23555.7%56.0%
D24QGA, Bogolyubov variation23547.7%54.9%
B13Caro-Kann, exchange, Rubinstein variation23439.3%54.7%
A76Benoni, classical, 9...Re823339.9%61.6%
C82Ruy Lopez, open, St. Petersburg variation23343.8%64.8%
D25QGA, 4.e323339.9%57.3%
C23Bishop's opening, Philidor counter-attack23149.8%50.0%
D15QGD Slav, 5.e3 (Alekhine variation)23133.8%56.3%
D55QGD, Neo-orthodox variation, 7.Bh423151.9%57.6%
D94Gruenfeld, Smyslov defence23148.5%55.0%
E46Nimzo-Indian, Simagin variation23144.6%48.7%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg722943.7%55.9%
C25Vienna, Paulsen variation22832.9%56.8%
A61Benoni, Uhlmann variation22722.9%41.4%
B72Sicilian, dragon, 6.Be322733.5%51.5%
C49Four knights, symmetrical variation22741.9%54.8%
D33QGD, Tarrasch, Prague variation22742.7%54.0%
A06Santasiere's folly22637.2%45.6%
A53Old Indian, Janowski variation22633.6%55.8%
D34QGD, Tarrasch, Prague variation, 7...Be722644.7%55.1%
E25Nimzo-Indian, Saemisch variation22541.8%55.1%
A82Dutch, Staunton gambit22336.3%44.6%
B06Robatsch defence, three pawns attack22328.3%59.4%
C19French, Winawer, advance, Smyslov variation22328.3%64.3%
C29Vienna gambit, Breyer variation22335.0%52.0%
D26QGA, classical variation, 6.O-O22349.8%57.6%
E77King's Indian, Four pawns attack22331.8%59.4%
A20English, Nimzovich, Flohr variation22238.7%48.2%
C50Giuoco Pianissimo, Canal variation22143.0%52.3%
A98Dutch, Ilyin-Genevsky variation with Qc222030.0%57.7%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit22040.9%58.2%
B80Sicilian, Scheveningen, English variation22034.5%55.0%
D86Gruenfeld, exchange, Simagin's improved variation22039.1%56.4%
A41Robatsch defence, Rossolimo variation21934.7%52.5%
B27Sicilian, Katalimov variation21840.8%58.5%
D15QGD Slav, Suechting variation21833.0%59.6%
C21Danish gambit, Soerensen defence21741.5%51.2%
C30KGD, classical, 4.c321731.8%59.2%
A30English, symmetrical, hedgehog, flexible formation21445.3%54.0%
C34KGA, Bonsch-Osmolovsky variation21430.8%53.7%
D49QGD semi-Slav, Meran, Blumenfeld variation21444.9%53.7%
D97Gruenfeld, Russian, Byrne (Simagin) variation21440.7%63.3%
C42Petrov, classical attack, close variation21345.5%58.9%
C53Giuoco Piano, Bird's attack21333.8%50.2%
E85King's Indian, Saemisch, orthodox variation21339.4%55.4%
C59Two knights defence21239.2%48.8%
A07Reti, King's Indian attack, Pachman system21141.7%52.6%
A38English, symmetrical, main line with d321144.5%54.0%
C51Evans gambit declined, 5.a421140.8%47.4%
A36English, symmetrical, Botvinnik system21035.2%49.5%
B59Sicilian, Boleslavsky variation, 7.Nb321048.6%52.9%
A54Old Indian, Ukrainian variation20938.8%54.3%
C00St. George defence20946.4%59.1%
C68Ruy Lopez, exchange, Keres variation20948.8%49.8%
C84Ruy Lopez, closed, centre attack20951.2%47.6%
D55QGD, 6.Nf320938.8%57.2%
D44QGD semi-Slav, anti-Meran, Lilienthal variation20835.1%65.6%
B05Alekhine's defence, modern, Flohr variation20738.6%59.9%
B01Scandinavian gambit20542.9%55.1%
E70King's Indian, accelerated Averbakh system20535.6%52.9%
C74Ruy Lopez, Siesta, Kopayev variation20433.3%55.9%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation20238.6%62.4%
C70Ruy Lopez20137.3%53.5%
A00Grob's attack19942.2%35.2%
B03Alekhine's defence19938.2%59.3%
A43Old Benoni, Franco-Benoni defence19833.8%62.4%
D46QGD semi-Slav, Romih variation19836.4%63.6%
E82King's Indian, Saemisch, double fianchetto variation19836.9%58.3%
E83King's Indian, Saemisch, 6...Nc619832.3%53.5%
A16English, Anglo-Gruenfeld, Smyslov defense19737.6%56.9%
C66Ruy Lopez, Berlin defence, 4.O-O, d619746.7%59.4%
D46QGD semi-Slav, Bogolyubov variation19745.2%56.6%
E15Queen's Indian, Rubinstein variation19735.0%60.2%
C82Ruy Lopez, open, Dilworth variation19640.8%60.2%
A00Polish, Outflank variation19542.6%46.9%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation19529.2%59.2%
A06Reti, old Indian attack19230.7%48.2%
A97Dutch, Ilyin-Genevsky, Winter variation19140.3%63.6%
C74Ruy Lopez, modern Steinitz defence19031.1%61.8%
C71Ruy Lopez, modern Steinitz defence18941.8%55.3%
E29Nimzo-Indian, Saemisch, main line18936.5%56.9%
A58Benko gambit, fianchetto variation18845.2%59.8%
B60Sicilian, Richter-Rauzer, Larsen variation18830.9%61.2%
C33KGA, bishop's gambit, Bledow variation18828.2%42.8%
D31QGD, semi-Slav, Abrahams variation18836.2%43.6%
A86Dutch with c4 & g318736.9%60.7%
C42Petrov, classical attack, Mason variation18746.5%58.6%
B04Alekhine's defence, modern, Schmid variation18639.8%59.7%
E10Blumenfeld counter-gambit, Spielmann variation18634.9%58.3%
B73Sicilian, dragon, classical, Richter variation18549.7%57.8%
C47Four knights, Belgrade gambit18342.6%52.5%
A42Modern defence, Averbakh system, Kotov variation18128.7%63.0%
D06QGD, symmetrical (Austrian) defence18145.9%60.5%
A59Benko gambit, main line18042.2%68.9%
D26QGA, classical, Steinitz variation18049.4%64.2%
A97Dutch, Ilyin-Genevsky variation17936.9%55.3%
C12French, MacCutcheon variation17941.9%45.0%
A13English, Kurajica defence17834.8%60.7%
B63Sicilian, Richter-Rauzer, Rauzer attack17837.6%57.0%
C25Vienna gambit17835.4%54.2%
B03Alekhine's defence, four pawns attack, 7.Be317633.5%70.2%
A21English, Troeger defence17527.4%56.0%
D84Gruenfeld, Gruenfeld gambit accepted17548.6%58.6%
A63Benoni, fianchetto, 9...Nbd717436.8%64.9%
C07French, Tarrasch, Eliskases variation17448.3%54.0%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc417449.4%46.6%
C86Ruy Lopez, Worrall attack, solid line17339.9%51.2%
D07QGD, Chigorin defence, Janowski variation17237.2%63.4%
A71Benoni, classical, 8.Bg517135.1%56.7%
D49QGD semi-Slav, Meran, Sozin variation17143.9%47.1%
A12English, Caro-Kann defensive system, Bogolyubov variation17045.9%54.7%
D15QGD Slav, Tolush-Geller gambit17029.4%41.8%
E10Blumenfeld counter-gambit accepted17040.0%55.9%
E60King's Indian, Anti-Gruenfeld17038.2%52.1%
B02Alekhine's defence, Maroczy variation16935.5%57.4%
D57QGD, Lasker defence, main line16952.7%55.3%
A12English, London defensive system16842.9%53.0%
B72Sicilian, dragon, classical attack16842.9%55.4%
A20English, Nimzovich variation16631.9%54.5%
E25Nimzo-Indian, Saemisch, Romanovsky variation16558.8%52.4%
A04Reti, Pirc-Lisitsin gambit16430.5%48.2%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be716435.4%56.1%
E53Nimzo-Indian, 4.e3, Keres variation16445.1%50.6%
C46Four knights, Gunsberg variation16343.6%49.4%
E64King's Indian, fianchetto, Yugoslav system16242.6%58.3%
C12French, MacCutcheon, Janowski variation16137.3%58.4%
C56Two knights defence16147.8%49.4%
B23Sicilian, Grand Prix attack, Schofman variation16041.9%52.2%
A69Benoni, four pawns attack, main line15939.6%55.0%
A72Benoni, classical without 9.O-O15944.7%65.7%
E72King's Indian with e4 & g315934.6%56.3%
A05Reti, King's Indian attack, Reti-Smyslov variation15833.5%49.1%
B82Sicilian, Scheveningen, Tal variation15834.2%64.6%
C03French, Tarrasch, Guimard variation15731.2%62.1%
D15QGD Slav accepted15740.8%51.0%
A41Modern defence15632.1%55.8%
B77Sicilian, dragon, Yugoslav attack, 9.Bc415637.2%55.1%
C33KGA, bishop's gambit, Jaenisch variation15541.3%47.1%
C39KGA, Kieseritsky, Kolisch defence15543.9%46.5%
A36English, symmetrical variation15433.8%51.3%
B03Alekhine's defence, four pawns attack, fianchetto variation15433.8%60.4%
B85Sicilian, Scheveningen, classical15340.5%50.3%
D54QGD, Anti-neo-orthodox variation15345.8%55.6%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack15321.6%61.8%
B98Sicilian, Najdorf, 7...Be715234.9%55.6%
C67Ruy Lopez, open Berlin defence, l'Hermet variation15261.8%51.3%
C98Ruy Lopez, closed, Chigorin, 12...Nc615230.9%63.5%
E07Catalan, closed, Botvinnik variation15241.4%50.3%
E92King's Indian, Petrosian system15227.0%54.3%
C02French, advance, Nimzovich system15128.5%50.7%
D59QGD, Tartakower variation15148.3%46.0%
E08Catalan, closed, 7.Qc215135.8%61.6%
B10Caro-Kann, Goldman (Spielmann) variation15036.0%51.3%
D35QGD, 3...Nf615038.0%49.7%
D63QGD, Orthodox defence, Swiss (Henneberger) variation15044.7%57.0%
E07Catalan, closed, 6...Nbd714943.6%52.7%
B00KP, Nimzovich defence, Bogolyubov variation14829.7%60.1%
B09Pirc, Austrian attack, 6.e514840.5%56.8%
B13Caro-Kann, Panov-Botvinnik, normal variation14847.3%55.4%
B18Caro-Kann, classical, Flohr variation14852.0%55.7%
C36KGA, Abbazia defence (classical defence, modern defence[!])14840.5%59.5%
A92Dutch, stonewall variation14740.1%60.9%
C53Giuoco Piano, close variation14737.4%59.5%
E67King's Indian, fianchetto with ...Nd714740.1%58.2%
A25English, closed system (without ...d6)14630.8%55.1%
B01Scandinavian defence, Lasker variation14633.6%65.4%
C11French, Steinitz, Gledhill attack14634.2%52.7%
C44Ponziani, Leonhardt variation14636.3%50.3%
D95Gruenfeld, Botvinnik variation14644.5%50.3%
E90King's Indian, Larsen variation14634.9%59.2%
A57Benko gambit, Zaitsev system14437.5%50.7%
C02French, advance, Milner-Barry gambit14436.8%49.0%
C20KP, Indian opening14436.8%46.9%
C44Scotch gambit14441.0%56.6%
D94Gruenfeld, Makogonov variation14340.6%51.0%
E32Nimzo-Indian, classical, Adorjan gambit14346.9%53.5%
A92Dutch defence14239.4%62.0%
C66Ruy Lopez, Berlin defence, hedgehog variation14252.8%57.4%
C92Ruy Lopez, closed, Kholmov variation14232.4%64.1%
E93King's Indian, Petrosian system, main line14233.8%53.5%
A75Benoni, classical with ...a6 and 10...Bg414134.0%62.4%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf614128.4%58.9%
E73King's Indian, Semi-Averbakh system14136.9%58.2%
A03Bird's opening, Lasker variation14030.7%46.1%
A12English, Capablanca's variation13939.6%46.4%
C12French, MacCutcheon, Dr. Olland (Dutch) variation13941.0%60.1%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)13951.1%55.0%
C20KP, Patzer opening13827.5%41.3%
C35KGA, Cunningham, Euwe defence13826.1%47.1%
C44King's pawn game13830.4%50.0%
C57Two knights defence, Wilkes Barre (Traxler) variation13634.6%59.2%
E46Nimzo-Indian, 4.e3 O-O13640.4%51.8%
A94Dutch, stonewall with Ba313543.7%56.7%
D56QGD, Lasker defence, Teichmann variation13553.3%49.6%
C44Ponziani counter-gambit13440.3%60.4%
C55Two knights defence13437.3%51.5%
D60QGD, Orthodox defence13435.8%53.7%
A00Benko's opening, reversed Alekhine13342.1%45.9%
C40Gunderam defence13332.3%64.3%
D32QGD, Tarrasch, von Hennig-Schara gambit13345.1%63.2%
C24Bishop's opening, Urusov gambit13245.5%40.2%
A73Benoni, classical, 9.O-O13131.3%59.2%
D08QGD, Albin counter-gambit, Alapin variation13148.9%55.7%
C14French, classical, Alapin variation13046.2%53.1%
C74Ruy Lopez, modern Steinitz defence, siesta variation13036.2%49.6%
B84Sicilian, Scheveningen, classical, Nd7 system12933.3%50.8%
B96Sicilian, Najdorf, Polugayevsky variation12939.5%54.7%
D25QGA, Flohr variation12927.1%65.5%
D63QGD, Orthodox defence12946.5%60.5%
A78Benoni, classical with ...Re8 and ...Na612832.0%61.3%
D48QGD semi-Slav, Meran, old main line12835.9%53.1%
D60QGD, Orthodox defence, Botvinnik variation12740.9%53.5%
A28English, Nenarokov variation12639.7%50.8%
E61King's Indian, Smyslov system12636.5%52.4%
A68Benoni, four pawns attack12535.2%58.4%
C68Ruy Lopez, exchange variation12539.2%53.2%
C70Ruy Lopez, Classical defence deferred12539.2%58.0%
A36English, symmetrical, Botvinnik system reversed12444.4%52.8%
A40Polish defence12432.3%57.3%
A47Queen's Indian, Marienbad system12341.5%52.4%
C26Vienna, Falkbeer variation12335.8%56.9%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc612344.7%46.7%
E27Nimzo-Indian, Saemisch variation12344.7%50.0%
C70Ruy Lopez, fianchetto defence deferred12248.4%57.0%
D51QGD, 4.Bg5 Nbd712143.0%53.7%
A17English, Queens Indian, Romanishin variation12035.8%54.6%
B62Sicilian, Richter-Rauzer, Keres variation12031.7%49.2%
D20QGA, Linares variation12036.7%59.2%
D60QGD, Orthodox defence, Rauzer variation12047.5%54.6%
C17French, Winawer, advance variation11938.7%58.0%
D16QGD Slav, Smyslov variation11937.8%60.9%
D83Gruenfeld, Gruenfeld gambit11846.6%55.5%
C65Ruy Lopez, Berlin defence, Nyholm attack11753.8%53.4%
D25QGA, Smyslov variation11753.0%60.7%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation11638.8%49.6%
C20King's pawn game11636.2%50.9%
C82Ruy Lopez, open, Italian variation11651.7%62.9%
C67Ruy Lopez, open Berlin defence, 5...Be711540.0%53.0%
C05French, Tarrasch, Botvinnik variation11435.1%65.8%
C57Two knights defence, Ulvestad variation11451.8%46.9%
C70Ruy Lopez, Caro variation11443.0%57.5%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd711446.5%53.1%
C23Bishop's opening, Classical variation11340.7%52.2%
C94Ruy Lopez, closed, Breyer defence11338.1%58.0%
E24Nimzo-Indian, Saemisch, Botvinnik variation11339.8%43.8%
E78King's Indian, Four pawns attack, with Be2 and Nf311340.7%57.5%
A12English, Torre defensive system11239.3%50.9%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)11244.6%45.5%
A28English, four knights, Stean variation11143.2%56.8%
A90Dutch-Indian, Alekhine variation11131.5%57.2%
C51Evans gambit, Cordel variation11147.7%46.4%
B03Alekhine's defence, four pawns attack, Trifunovic variation11031.8%69.5%
D12QGD Slav, exchange variation11037.3%48.6%
D44QGD semi-Slav, Botvinnik system (anti-Meran)10934.9%51.4%
C82Ruy Lopez, open, Motzko attack10848.1%59.3%
E81King's Indian, Saemisch, Byrne variation10839.8%57.9%
A83Dutch, Staunton gambit, Chigorin variation10731.8%52.3%
B83Sicilian, modern Scheveningen, main line with Nb310736.4%55.6%
D53QGD, 4.Bg5 Be7, 5.e3 O-O10644.3%52.4%
A79Benoni, classical, 11.f310531.4%62.4%
C33KGA, bishop's gambit, Steinitz defence10528.6%50.5%
C48Four knights, Rubinstein counter-gambit, Henneberger variation10551.4%50.5%
E17Queen's Indian, Euwe variation10553.3%54.3%
B53Sicilian, Chekhover, Zaitsev variation10432.7%59.6%
C49Four knights10452.9%47.6%
B20Sicilian, wing gambit10333.0%44.7%
B55Sicilian, Prins variation, Venice attack10339.8%51.0%
C57Two knights defence, Fritz variation10339.8%50.0%
B74Sicilian, dragon, classical, Reti-Tartakower variation10245.1%53.9%
C13French, Albin-Alekhine-Chatard attack, Breyer variation10239.2%62.7%
C52Evans gambit, Tartakower attack10145.5%47.5%
E62King's Indian, fianchetto, Simagin variation10131.7%64.4%
E96King's Indian, orthodox, 7...Nbd7, main line10138.6%58.9%
A00Clemenz (Mead's, Basman's or de Klerk's) opening10037.0%50.5%
C34KGA, Becker defence10031.0%50.5%
E62King's Indian, fianchetto variation10040.0%54.0%
C64Ruy Lopez, Cordel gambit9940.4%55.6%
A12English, New York (London) defensive system9836.7%43.9%
A16English, Anglo-Gruenfeld defense, Korchnoi variation9837.8%55.6%
C12French, MacCutcheon, Chigorin variation9742.3%49.0%
D40QGD, Semi-Tarrasch defence, Pillsbury variation9750.5%58.2%
D97Gruenfeld, Russian variation with e49732.0%61.3%
B06Robatsch defence, Gurgenidze variation9634.4%63.0%
B20Sicilian, wing gambit, Marshall variation9628.1%56.8%
C49Four knights, Nimzovich (Paulsen) variation9654.2%57.3%
C58Two knights defence, Bogolyubov variation9632.3%43.2%
D90Gruenfeld, Schlechter variation9636.5%53.6%
C67Ruy Lopez, Berlin defence, Cordel variation9537.9%60.0%
C90Ruy Lopez, closed, Suetin variation9537.9%57.9%
D52QGD, Cambridge Springs defence, 7.cd9530.5%55.3%
C30KGD, Keene's defence9428.7%64.4%
C41Philidor, Nimzovich, Larobok variation9448.9%38.3%
D27QGA, classical, Geller variation9453.2%57.4%
D86Gruenfeld, exchange, Simagin's lesser variation9443.6%60.1%
B04Alekhine's defence, modern, Keres variation9339.8%67.2%
C33KGA, bishop's gambit, Bogolyubov variation9343.0%50.5%
D87Gruenfeld, exchange, Seville variation9353.8%61.3%
C39KGA, Kieseritsky, Berlin defence9233.7%42.9%
C49Four knights, symmetrical, Maroczy system9243.5%56.5%
C57Two knights defence, Fegatello attack9222.8%52.7%
B42Sicilian, Kan, Gipslis variation9038.9%63.9%
C53Giuoco Piano, centre-holding variation9042.2%61.1%
D47QGD semi-Slav, 7.Bc48933.7%58.4%
E89King's Indian, Saemisch, orthodox main line8831.8%55.7%
A43Old Benoni, Mujannah formation8732.2%63.2%
C01French, exchange, Svenonius variation8736.8%51.7%
C42Petrov, Cochrane gambit8721.8%36.2%
C58Two knights defence, Colman variation8632.6%45.3%
B40Sicilian, Pin, Koch variation8523.5%76.5%
B56Sicilian, Venice attack8537.6%58.8%
C60Ruy Lopez (Spanish opening)8432.1%57.7%
D68QGD, Orthodox defence, classical variation8450.0%57.1%
E30Nimzo-Indian, Leningrad, ...b5 gambit8433.3%47.6%
A52Budapest, Alekhine, Abonyi variation8330.1%60.8%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)8331.3%49.4%
C45Scotch, Romanishin variation8339.8%56.0%
A28English, Bradley Beach variation8225.6%39.6%
B27Sicilian, Quinteros variation8235.4%61.6%
C77Ruy Lopez, Morphy defence, Duras variation8239.0%58.5%
D00Queen's pawn, stonewall attack8132.1%42.0%
E99King's Indian, orthodox, Aronin-Taimanov, main line8128.4%66.0%
A80Dutch, Korchnoi attack8026.3%48.1%
A81Dutch defence, Blackburne variation8031.3%53.1%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
D05Queen's pawn game, Zukertort variation7946.8%57.6%
D15QGD Slav, Slav gambit7929.1%67.7%
C44Ponziani, Fraser defence7837.2%66.0%
D49QGD semi-Slav, Meran, Rabinovich variation7830.8%47.4%
D50QGD, Semi-Tarrasch7852.6%51.9%
B07Pirc, Holmov system7739.0%53.2%
B12Caro-Kann, Edinburgh variation7742.9%56.5%
C51Evans gambit, 5...Be77736.4%61.0%
D23Queen's gambit accepted7749.4%51.9%
E90King's Indian, Zinnowitz variation7740.3%55.2%
C00French, Pelikan variation7639.5%51.3%
C43Petrov, modern attack, Trifunovic variation7650.0%51.3%
C17French, Winawer, advance, Russian variation7544.0%51.3%
C80Ruy Lopez, open (Tarrasch) defence7544.0%62.0%
D89Gruenfeld, Spassky variation, main line, 13.Bd37540.0%48.0%
C60Ruy Lopez, Cozio defence, Paulsen variation7441.9%65.5%
C66Ruy Lopez, closed Berlin defence, Showalter variation7445.9%56.8%
C78Ruy Lopez, ...b5 & ...d67436.5%60.1%
A52Budapest defence7331.5%54.1%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit7259.7%53.5%
C39KGA, Kieseritsky, Berlin defence, 6.Bc47230.6%41.7%
C50Giuoco Piano, four knights variation7238.9%54.2%
A61Benoni, fianchetto variation7129.6%58.5%
B01Scandinavian, Icelandic gambit7045.7%57.1%
C15French, Winawer, Alekhine gambit, Kan variation7042.9%52.9%
C30KGD, 2...Nf67028.6%61.4%
C31KGD, Falkbeer, Tartakower variation7058.6%47.9%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence7044.3%40.7%
A44Old Benoni defence6929.0%59.4%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation6937.7%66.7%
C33KGA, Keres (Mason-Steinitz) gambit6942.0%45.7%
C33KGA, bishop's gambit, Morphy variation6934.8%56.5%
C44Scotch gambit, Benima defence6939.1%57.2%
D00Blackmar-Diemer gambit6943.5%43.5%
D28QGA, classical, 7.Qe26950.7%61.6%
A09Reti accepted, Keres variation6827.9%64.0%
C00French, Wing gambit6841.2%60.3%
C47Four knights, Scotch, Krause variation6839.7%64.0%
C49Four knights, symmetrical, Pillsbury variation6845.6%44.9%
D67QGD, Orthodox defence, Bd3 line, 11.O-O6835.3%66.2%
B12Caro-Kann, advance, Short variation6729.9%61.2%
C41Philidor, Nimzovich variation6743.3%59.0%
C53Giuoco Piano, LaBourdonnais variation6750.7%58.2%
C95Ruy Lopez, closed, Breyer, Gligoric variation6744.8%58.2%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation6755.2%60.4%
E15Queen's Indian, Buerger variation6735.8%62.7%
E72King's Indian, Pomar system6737.3%57.5%
A21English, Smyslov defence6628.8%61.4%
B62Sicilian, Richter-Rauzer, 6...e66642.4%59.1%
C15French, Winawer, fingerslip variation6634.8%46.2%
C41Philidor, Larsen variation6625.8%65.9%
A56Czech Benoni, King's Indian system6520.0%62.3%
B72Sicilian, dragon, classical, Amsterdam variation6529.2%48.5%
C42Petrov, Italian variation6527.7%49.2%
A59Benko gambit, 7.e46331.7%61.9%
C41Philidor, Hanham variation6333.3%62.7%
C43Petrov, modern (Steinitz) attack6339.7%56.3%
A92Dutch defence, Alekhine variation6241.9%59.7%
B22Sicilian, 2.c3, Heidenfeld variation6225.8%45.2%
C20Alapin's opening6233.9%57.3%
C32KGD, Falkbeer, 5.de6237.1%50.8%
C38King's knight's gambit6233.9%25.0%
C51Evans gambit declined6238.7%53.2%
B03Alekhine's defence, Balogh variation6139.3%57.4%
C40Latvian, Fraser defence6131.1%68.0%
C44Konstantinopolsky opening6136.1%60.7%
C51Evans gambit, normal variation6131.1%46.7%
C66Ruy Lopez, closed Berlin defence, Wolf variation6157.4%56.6%
D33QGD, Tarrasch, Schlechter-Rubinstein system6134.4%56.6%
E73King's Indian, 5.Be26129.5%63.9%
A59Benko gambit6043.3%65.0%
C11French, Swiss variation6045.0%54.2%
C31KGD, Falkbeer, 4.d36050.0%63.3%
C80Ruy Lopez, open, 6.d45939.0%44.9%
D33QGD, Tarrasch, Wagner variation5954.2%55.9%
E03Catalan, open, Alekhine variation5940.7%49.2%
C67Ruy Lopez, Berlin defence, Rosenthal variation5841.4%56.9%
E17Queen's Indian, 5.Bg2 Be75841.4%46.6%
E26Nimzo-Indian, Saemisch, O'Kelly variation5839.7%50.9%
A00Grob, Fritz gambit5743.9%30.7%
B72Sicilian, dragon, classical, Grigoriev variation5747.4%50.0%
B72Sicilian, dragon, classical, Nottingham variation5743.9%53.5%
E79King's Indian, Four pawns attack, main line5757.9%57.0%
B80Sicilian, Scheveningen, Vitolins variation5644.6%50.9%
B98Sicilian, Najdorf, Browne variation5630.4%63.4%
C44Ponziani, Reti variation5639.3%60.7%
C67Ruy Lopez, Berlin defence, Minckwitz variation5648.2%58.0%
B07Pirc, bayonet (Mariotti) attack5541.8%53.6%
B27Sicilian defence5534.5%62.7%
D51QGD5549.1%57.3%
A40Beefeater defence5431.5%62.0%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation5438.9%49.1%
B58Sicilian, Boleslavsky, Louma variation5435.2%54.6%
C52Evans gambit, compromised defence5425.9%70.4%
A03Bird's opening, Williams gambit5334.0%56.6%
B00St. George (Baker) defence5332.1%59.4%
C33KGA, bishop's gambit, Ruy Lopez defence5343.4%51.9%
C51Evans gambit declined, Showalter variation5345.3%58.5%
D51QGD, Capablanca anti-Cambridge Springs variation5345.3%60.4%
A25English, closed, Hort variation5234.6%55.8%
B00Reversed Grob (Borg/Basman defence/macho Grob)5219.2%71.2%
B71Sicilian, dragon, Levenfish; Flohr variation5240.4%58.7%
C44Inverted Hanham5234.6%44.2%
A80Dutch, Manhattan (Alapin, Ulvestad) variation5123.5%51.0%
C29Vienna gambit, Paulsen attack5143.1%52.9%
C31KGD, Falkbeer, 3...e45147.1%47.1%
C45Scotch, Meitner variation5151.0%51.0%
D52QGD, Cambridge Springs defence5147.1%49.0%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)5156.9%57.8%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation5154.9%62.7%
A51Budapest, Fajarowicz, Steiner variation5036.0%46.0%
C68Ruy Lopez, exchange, Romanovsky variation5032.0%52.0%
D30QGD Slav, Semmering variation5036.0%50.0%
D46QGD semi-Slav, 6.Bd35040.0%66.0%
C37KGA, Quaade gambit4932.7%38.8%
C83Ruy Lopez, open, 9...Be7, 10.Re14940.8%53.1%
E23Nimzo-Indian, Spielmann, Karlsbad variation4942.9%45.9%
E77King's Indian, Four pawns attack, 6.Be24940.8%44.9%
C14French, classical, Rubinstein variation4837.5%62.5%
C45Scotch, Steinitz variation4833.3%58.3%
D32QGD, Tarrasch defence, 4.cd ed4831.3%44.8%
D95Gruenfeld with e3 & Qb34839.6%59.4%
E51Nimzo-Indian, 4.e3, Ragozin variation4835.4%67.7%
A22English, Bellon gambit4727.7%58.5%
C25Vienna game, Max Lange defence4744.7%52.1%
C41Philidor, Nimzovich, Rellstab variation4738.3%66.0%
C53Giuoco Piano, Anderssen variation4755.3%46.8%
C90Ruy Lopez, closed, Lutikov variation4751.1%53.2%
D29QGA, classical, Smyslov variation4753.2%43.6%
A04Reti, Lisitsin gambit deferred4628.3%68.5%
A45Paleface attack4632.6%51.1%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)4645.7%59.8%
C34King's knight's gambit4628.3%48.9%
C44Inverted Hungarian4645.7%51.1%
C46Three knights, Schlechter variation4639.1%54.3%
C55Two knights defence, Perreux variation4656.5%50.0%
C88Ruy Lopez, closed, Balla variation4637.0%55.4%
E12Queen's Indian, 4.Nc3, Botvinnik variation4628.3%48.9%
A01Nimzovich-Larsen attack, Dutch variation4524.4%58.9%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation4548.9%48.9%
B60Sicilian, Richter-Rauzer, Bondarevsky variation4546.7%65.6%
C20KP, Napoleon's opening4537.8%61.1%
C27Boden-Kieseritsky gambit4535.6%35.6%
C33KGA, bishop's gambit, Maurian defence4515.6%41.1%
C58Two knights defence, Kieseritsky variation4531.1%57.8%
C96Ruy Lopez, closed, Borisenko defence4540.0%57.8%
D30QGD, Capablanca variation4533.3%58.9%
B15Caro-Kann, Alekhine gambit4436.4%45.5%
C54Giuoco Piano, Moeller (Therkatz) attack4454.5%47.7%
C55Two knights, Max Lange attack4431.8%61.4%
D34QGD, Tarrasch, Reti variation4454.5%65.9%
C70Ruy Lopez, Schliemann defence deferred4337.2%60.5%
D21QGA, Alekhine defense, Borisenko-Furman variation4334.9%45.3%
A06Tennison (Lemberg, Zukertort) gambit4240.5%51.2%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation4219.0%52.4%
C29Vienna gambit, Steinitz variation4240.5%46.4%
C45Scotch, Horwitz attack4235.7%56.0%
C65Ruy Lopez, Berlin defence, Kaufmann variation4250.0%53.6%
D01Richter-Veresov attack, Veresov variation4240.5%48.8%
A43Old Benoni, Schmid's system4126.8%59.8%
C32KGD, Falkbeer, Keres variation4139.0%51.2%
D00Blackmar-Diemer, Euwe defence4126.8%47.6%
A74Benoni, classical, 9...a6, 10.a44032.5%63.8%
B05Alekhine's defence, modern, Vitolins attack4045.0%55.0%
C96Ruy Lopez, closed (8...Na5)4050.0%62.5%
D52QGD, Cambridge Springs defence, Capablanca variation3935.9%59.0%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc3938.5%65.4%
E60Queen's pawn, Mengarini attack3935.9%61.5%
E92King's Indian, classical variation3930.8%48.7%
A92Dutch, stonewall with Nc33844.7%48.7%
B34Sicilian, accelerated fianchetto, exchange variation3839.5%48.7%
B40Sicilian, Pin variation (Sicilian counter-attack)3834.2%64.5%
C27Vienna, Alekhine variation3839.5%48.7%
C37KGA, Blachly gambit3834.2%30.3%
C88Ruy Lopez, closed, 8.c33842.1%57.9%
D57QGD, Lasker defence, Bernstein variation3857.9%55.3%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation3860.5%59.2%
E29Nimzo-Indian, Saemisch, Capablanca variation3842.1%42.1%
B32Sicilian, Nimzovich variation3743.2%54.1%
C37KGA, King's knight's gambit3759.5%51.4%
C51Evans gambit, Morphy attack3740.5%58.1%
C68Ruy Lopez, exchange, Alekhine variation3748.6%43.2%
D63QGD, Orthodox defence, Pillsbury attack3754.1%62.2%
A02Bird, From gambit, Lasker variation3647.2%56.9%
C33KGA, bishop's gambit, Cozio (Morphy) defence3625.0%34.7%
C37KGA, Rosentreter gambit3636.1%43.1%
C51Evans counter-gambit3630.6%56.9%
D50QGD, Been-Koomen variation3650.0%47.2%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation3633.3%61.1%
D65QGD, Orthodox defence, Rubinstein attack, main line3650.0%58.3%
E10Doery defence3638.9%58.3%
A66Benoni, Mikenas variation3517.1%54.3%
B41Sicilian, Kan, Maroczy bind - Bronstein variation3540.0%37.1%
B50Sicilian, wing gambit deferred3534.3%42.9%
C00French, Steinitz attack3528.6%45.7%
C13French, classical3545.7%45.7%
C13French, classical, Tartakower variation3531.4%55.7%
C26Vienna, Mengarini variation3557.1%48.6%
C41Philidor, Hanham, Schlechter variation3551.4%65.7%
C55Two knights, Max Lange attack, Schlechter variation3562.9%51.4%
C86Ruy Lopez, Worrall attack3545.7%60.0%
A25English, closed, Taimanov variation3420.6%63.2%
A40Queen's pawn, Charlick (Englund) gambit3444.1%60.3%
B20Sicilian, wing gambit, Carlsbad variation3444.1%48.5%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence3444.1%54.4%
C47Four knights, Scotch variation3435.3%52.9%
A83Dutch, Staunton gambit, Lasker variation3336.4%57.6%
B09Pirc, Austrian attack, Ljubojevic variation3330.3%48.5%
B44Sicilian, Szen variation, Dely-Kasparov gambit3357.6%62.1%
C12French, MacCutcheon, Grigoriev variation3360.6%54.5%
C48Four knights, Ranken variation3345.5%62.1%
C67Ruy Lopez, Berlin defence, Winawer attack3333.3%68.2%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation3351.5%56.1%
A18English, Mikenas-Carls, Kevitz variation3234.4%48.4%
C10French, Frere (Becker) variation3237.5%62.5%
C40QP counter-gambit (elephant gambit)3250.0%65.6%
C42Petrov, Damiano variation3246.9%54.7%
A12English, Bled variation3138.7%45.2%
A51Budapest defence declined3145.2%61.3%
C12French, MacCutcheon, Bernstein variation3125.8%58.1%
D44QGD semi-Slav, anti-Meran, Szabo variation3122.6%37.1%
A00Novosibirsk opening3036.7%55.0%
A00Ware (Meadow Hay) opening3033.3%40.0%
C31KGD, Falkbeer, Rubinstein variation3010.0%58.3%
C41Philidor, Philidor counter-gambit3016.7%71.7%
C45Scotch, Blackburne attack3043.3%51.7%
A52Budapest, Alekhine variation2931.0%60.3%
B05Alekhine's defence, modern, Panov variation2941.4%48.3%
B74Sicilian, dragon, classical, Alekhine variation2951.7%63.8%
C22Centre game, Hall variation2937.9%36.2%
C31KGD, Falkbeer, Nimzovich variation2937.9%53.4%
C38KGA, Philidor gambit2920.7%31.0%
C46Three knights, Steinitz, Rosenthal variation2948.3%48.3%
C65Ruy Lopez, Berlin defence, Duras variation2937.9%46.6%
C65Ruy Lopez, Berlin defence, Mortimer variation2951.7%46.6%
D41QGD, Semi-Tarrasch, San Sebastian variation2937.9%77.6%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation2941.4%41.4%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation2937.9%63.8%
D97Gruenfeld, Russian, Levenfish variation2934.5%62.1%
E23Nimzo-Indian, Spielmann, San Remo variation2941.4%51.7%
A82Dutch, Balogh defence2850.0%60.7%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack2832.1%44.6%
C32KGD, Falkbeer, Reti variation2835.7%53.6%
C45Scotch, Tartakower variation2825.0%44.6%
C67Ruy Lopez, Berlin defence, Zukertort variation2860.7%55.4%
C82Ruy Lopez, open, Berlin variation2828.6%67.9%
B02Alekhine's defence, Brooklyn defence2740.7%61.1%
B24Sicilian, closed, Smyslov variation2729.6%59.3%
C00Lengfellner system2729.6%59.3%
C25Vienna, Pierce gambit2725.9%53.7%
C41Philidor, Nimzovich (Jaenisch) variation2733.3%50.0%
C49Four knights, Janowski variation2740.7%64.8%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2744.4%44.4%
D01Richter-Veresov attack, Richter variation2725.9%57.4%
D40QGD, Semi-Tarrasch, symmetrical variation2748.1%53.7%
D99Gruenfeld defence, Smyslov, Yugoslav variation2722.2%51.9%
E83King's Indian, Saemisch, Ruban variation2729.6%51.9%
B85Sicilian, Scheveningen, classical, Maroczy system2634.6%55.8%
C67Ruy Lopez, open Berlin defence, Showalter variation2634.6%48.1%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D51QGD, Manhattan variation2650.0%55.8%
D52QGD, Cambridge Springs defence, Argentine variation2634.6%44.2%
B12de Bruycker defence258.0%56.0%
C39KGA, Kieseritsky, Neumann defence2540.0%60.0%
C40Latvian, Polerio variation2532.0%44.0%
C42Petrov, classical attack, Berger variation2560.0%58.0%
C95Ruy Lopez, closed, Breyer, Simagin variation2540.0%56.0%
D94Gruenfeld with e3 Bd32540.0%48.0%
A46Queen's pawn, Torre attack, Wagner gambit2429.2%47.9%
B02Alekhine's defence, Spielmann variation2429.2%47.9%
B03Alekhine's defence, four pawns attack, 6...Nc62429.2%52.1%
B62Sicilian, Richter-Rauzer, Podvebrady variation2445.8%35.4%
C13French, classical, Anderssen variation2433.3%41.7%
C14French, classical, Tarrasch variation2425.0%58.3%
C41Philidor, Hanham, Steiner variation2437.5%64.6%
C44Ponziani, Romanishin variation2433.3%50.0%
C44Scotch, Lolli variation2433.3%58.3%
C49Four knights, symmetrical, Capablanca variation2454.2%60.4%
C66Ruy Lopez, closed Berlin defence, Bernstein variation2445.8%60.4%
C88Ruy Lopez, closed, 7...d6, 8.d42433.3%25.0%
D48QGD semi-Slav, Meran244.2%43.8%
A47Queen's Indian, Marienbad system, Berg variation2347.8%54.3%
A59Benko gambit, Ne2 variation2339.1%50.0%
B02Alekhine's defence, Steiner variation2339.1%50.0%
B13Caro-Kann, Panov-Botvinnik, Herzog defence2334.8%52.2%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2347.8%50.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence2334.8%52.2%
C33KGA, bishop's gambit, Paulsen attack2339.1%45.7%
D08QGD, Albin counter-gambit, Balogh variation2330.4%76.1%
D94Gruenfeld, Flohr defence2352.2%60.9%
E11Bogo-Indian defence, Monticelli trap2343.5%39.1%
A00Battambang opening2236.4%50.0%
A54Old Indian, Dus-Khotimirsky variation2227.3%40.9%
A70Benoni, classical without 9.O-O2213.6%52.3%
C17French, Winawer, advance, Rauzer variation2236.4%63.6%
C20KP, Mengarini's opening2240.9%29.5%
C21Halasz gambit2231.8%43.2%
C30KGD, Norwalde variation2213.6%79.5%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation2245.5%54.5%
D12QGD Slav, Amsterdam variation2254.5%45.5%
D98Gruenfeld, Russian, Keres variation2250.0%47.7%
C31KGD, Falkbeer, Morphy gambit2123.8%50.0%
C40Latvian gambit, 3.Bc42152.4%50.0%
C57Two knights defence, Lolli attack2133.3%59.5%
C92Ruy Lopez, closed, Keres (9...a5) variation2152.4%50.0%
D08QGD, Albin counter-gambit, Janowski variation2123.8%73.8%
D45QGD semi-Slav, Rubinstein (anti-Meran) system2133.3%45.2%
B02Alekhine's defence, Krejcik variation2035.0%47.5%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation2020.0%65.0%
C20KP, Lopez opening2040.0%35.0%
C24Bishop's opening, Ponziani gambit2030.0%30.0%
C33KGA, Villemson (Steinitz) gambit2030.0%50.0%
C44Scotch opening2050.0%50.0%
C45Scotch, Paulsen attack2045.0%52.5%
C51Evans gambit2040.0%65.0%
C51Evans gambit, Paulsen variation2025.0%67.5%
C57Two knights defence2025.0%42.5%
D00Blackmar-Diemer, Lemberg counter-gambit2020.0%60.0%
B21Sicilian, Andreaschek gambit1947.4%55.3%
B45Sicilian, Taimanov, American attack1942.1%42.1%
C06French, Tarrasch, Leningrad variation1921.1%84.2%
C27Vienna, `Frankenstein-Dracula' variation1910.5%78.9%
C29Vienna gambit, Bardeleben variation1931.6%52.6%
C39KGA, Kieseritsky, Rice gambit1921.1%26.3%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1952.6%47.4%
C52Evans gambit, Richardson attack1936.8%28.9%
C58Two knights defence, Yankovich variation1931.6%26.3%
C78Ruy Lopez, Wing attack1942.1%52.6%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation1942.1%73.7%
D32QGD, Tarrasch defence, Tarrasch gambit1957.9%44.7%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
A00Amar (Paris) opening1844.4%33.3%
A82Dutch, Staunton gambit, Tartakower variation1827.8%58.3%
B15Caro-Kann, Rasa-Studier gambit1822.2%27.8%
B77Sicilian, dragon, Yugoslav attack, Byrne variation1844.4%66.7%
C00French, Alapin variation1827.8%58.3%
C02French, advance, Nimzovich variation1827.8%47.2%
C15French, Winawer, Kondratiyev variation1855.6%61.1%
C37KGA, Muzio gambit1833.3%33.3%
C41Philidor, Hanham, Krause variation1850.0%47.2%
C44Dresden opening1827.8%41.7%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1872.2%58.3%
D08QGD, Albin counter-gambit, Krenosz variation1838.9%58.3%
E77King's Indian, Four pawns attack, Florentine gambit1838.9%41.7%
A45Canard opening1729.4%38.2%
C00French, Reversed Philidor formation1723.5%64.7%
C14French, classical, Pollock variation1729.4%44.1%
C21Danish gambit, Schlechter defence1723.5%47.1%
C52Evans gambit, compromised defence, Paulsen variation1723.5%58.8%
C55Two knights, Max Lange attack, Steinitz variation1741.2%67.6%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C83Ruy Lopez, open, Malkin variation1758.8%58.8%
D31QGD, Alapin variation1723.5%64.7%
D49QGD semi-Slav, Meran, Rellstab attack1735.3%58.8%
D50QGD, Canal (Venice) variation1747.1%52.9%
D69QGD, Orthodox defence, classical, 13.de1752.9%55.9%
E60King's Indian, 3.g3, counterthrust variation1729.4%32.4%
B00Barnes defence1637.5%81.3%
B03Alekhine's defence, exchange, Karpov variation1662.5%56.3%
B79Sicilian, dragon, Yugoslav attack, 12.h41625.0%62.5%
B88Sicilian, Sozin, Fischer variation1650.0%50.0%
C13French, classical, Anderssen-Richter variation1625.0%50.0%
C15French, Winawer, Alekhine gambit1637.5%56.3%
C45Scotch, Blumenfeld attack1637.5%31.3%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C57Two knights defence, Fritz, Gruber variation1637.5%43.8%
D48QGD semi-Slav, Meran, Pirc variation1650.0%68.8%
E36Nimzo-Indian, classical, Botvinnik variation1643.8%59.4%
A42Modern defence, Averbakh system, Randspringer variation1513.3%66.7%
B02Alekhine's defence, Kmoch variation1520.0%36.7%
C11French, Henneberger variation1533.3%50.0%
C12French, MacCutcheon, advance variation1526.7%20.0%
C37KGA, Salvio gambit1526.7%46.7%
C41Philidor, Nimzovich, Klein variation1560.0%56.7%
C44Scotch, Goering gambit, Bardeleben variation1540.0%46.7%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
D41QGD, Semi-Tarrasch, Kmoch variation1560.0%43.3%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1540.0%53.3%
A00Durkin's attack1421.4%46.4%
A00Gedult's opening1414.3%42.9%
A21English, Keres variation1421.4%46.4%
A58Benko gambit, Nd2 variation1442.9%57.1%
B20Sicilian, Gloria variation1421.4%46.4%
C14French, classical variation1414.3%42.9%
C39King's knight's gambit1428.6%50.0%
C41Philidor, Hanham, Delmar variation1428.6%42.9%
C41Philidor, Nimzovich, Sokolsky variation1478.6%60.7%
C43Petrov, Urusov gambit1414.3%71.4%
C51Evans gambit, Fraser attack1428.6%57.1%
C52Evans gambit, Lasker defence1435.7%25.0%
C64Ruy Lopez, classical defence, Boden variation1457.1%57.1%
C64Ruy Lopez, classical defence, Charousek variation1435.7%67.9%
D22QGA, Alekhine defence, Alatortsev variation1457.1%42.9%
D32QGD, Tarrasch defence, Marshall gambit1442.9%57.1%
D45QGD semi-Slav, stonewall defence1442.9%50.0%
B01Scandinavian, Mieses-Kotrvc gambit1353.8%50.0%
C13French, classical, Vistaneckis (Nimzovich) variation137.7%57.7%
C30KGD, classical, Heath variation1346.2%53.8%
C32KGD, Falkbeer, Charousek gambit1361.5%53.8%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit1315.4%53.8%
C38KGA, Hanstein gambit1323.1%57.7%
C52Evans gambit, Alapin-Steinitz variation1353.8%34.6%
C80Ruy Lopez, open, Tartakower variation1361.5%46.2%
D51QGD, Rochlin variation1346.2%46.2%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
E08Catalan, closed, Spassky gambit1323.1%50.0%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd1338.5%57.7%
A45Queen's pawn, Bronstein gambit1233.3%50.0%
A81Dutch, Leningrad, Basman system1250.0%58.3%
A81Dutch, Leningrad, Karlsbad variation1250.0%50.0%
A86Dutch, Hort-Antoshin system1241.7%54.2%
B00KP, Colorado counter1241.7%70.8%
B00Lemming defence1233.3%58.3%
B01Scandinavian, Richter variation1216.7%66.7%
B18Caro-Kann, classical, Maroczy attack1216.7%41.7%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1241.7%62.5%
B73Sicilian, dragon, classical, Zollner gambit1233.3%41.7%
C29Vienna gambit, Kaufmann variation1241.7%70.8%
C40Greco defence1225.0%45.8%
C41Philidor, Philidor counter-gambit, Zukertort variation1250.0%66.7%
C44Scotch gambit, Cochrane-Shumov defence1250.0%66.7%
C48Four knights, Rubinstein counter-gambit, 5.Be21241.7%45.8%
C53Giuoco Piano, Mestel variation1216.7%66.7%
C60Ruy Lopez, Lucena defence1241.7%45.8%
C70Ruy Lopez, Graz variation1266.7%58.3%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1233.3%50.0%
D31QGD, semi-Slav, Junge variation1233.3%33.3%
D55QGD, Neo-orthodox variation1250.0%58.3%
D89Gruenfeld, exchange, Sokolsky variation1241.7%45.8%
E60King's Indian, Danube gambit1241.7%54.2%
A84Dutch, Staunton gambit deferred1145.5%31.8%
B03Alekhine's defence, four pawns attack, Planinc variation1136.4%36.4%
B57Sicilian, Magnus Smith trap1145.5%40.9%
C32KGD, Falkbeer, main line, 7...Bf51127.3%68.2%
C80Ruy Lopez, open, Friess attack1118.2%54.5%
C80Ruy Lopez, open, Riga variation1145.5%68.2%
D86Gruenfeld, exchange, Larsen variation1136.4%54.5%
E37Nimzo-Indian, classical, San Remo variation1127.3%59.1%
A25English, closed, 5.Rb1 Taimanov variation1020.0%60.0%
B02Alekhine's defence, Welling variation1020.0%50.0%
B74Sicilian, dragon, classical, Spielmann variation1030.0%55.0%
C01French, exchange, Bogolyubov variation1050.0%45.0%
C10French, Rubinstein, Capablanca line1060.0%50.0%
C30KGD, classical counter-gambit1050.0%55.0%
C30KGD, classical, Marshall attack1080.0%50.0%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit1020.0%50.0%
C38KGA, Philidor gambit, Schultz variation1060.0%30.0%
C39KGA, Kieseritsky, Paulsen defence1020.0%50.0%
C41Philidor, Boden variation1050.0%45.0%
C44Scotch, Relfsson gambit ('MacLopez')1040.0%50.0%
C48Four knights, Marshall variation1020.0%50.0%
C57Two knights defence, Pincus variation1040.0%30.0%
C58Two knights defence, Paoli variation1030.0%75.0%
E08Catalan, closed, Zagoryansky variation1060.0%50.0%
E21Nimzo-Indian, three knights, Korchnoi variation1030.0%35.0%
C23Bishop's opening, Philidor variation944.4%55.6%
C30KGD, classical, Reti variation955.6%50.0%
C33KGA, bishop's gambit, Boden defence955.6%50.0%
C42Petrov, French attack966.7%66.7%
C42Petrov, classical attack, Krause variation944.4%33.3%
C43Petrov, modern attack, Bardeleben variation944.4%55.6%
C52Evans gambit, Waller attack922.2%88.9%
C55Two knights, Max Lange attack, Marshall variation922.2%66.7%
C57Two knights defence, Fegatello attack, Leonhardt variation922.2%55.6%
C61Ruy Lopez, Bird's defence, Paulsen variation944.4%66.7%
C82Ruy Lopez, open, 9.c3933.3%72.2%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
A43Woozle defence80.0%75.0%
B00Fred80.0%75.0%
B05Alekhine's defence, modern, Alekhine variation837.5%43.8%
B15Caro-Kann, Gurgenidze counter-attack850.0%62.5%
B40Sicilian, Marshall variation825.0%75.0%
C13French, classical, Frankfurt variation837.5%81.3%
C22Centre game, Charousek variation862.5%56.3%
C22Centre game, l'Hermet variation80.0%37.5%
C30KGD, Mafia defence837.5%68.8%
C33KGA, Carrera (Basman) gambit825.0%50.0%
C45Scotch, Ghulam Kassim variation875.0%50.0%
C48Four knights, Bardeleben variation850.0%50.0%
C48Four knights, Spielmann variation862.5%43.8%
C59Two knights defence, Goering variation812.5%31.3%
D51QGD, Alekhine variation812.5%56.3%
E20Nimzo-Indian, Mikenas attack850.0%62.5%
E21Nimzo-Indian, three knights, Euwe variation862.5%56.3%
A00Anti-Borg (Desprez) opening70.0%42.9%
B01Scandinavian, Kiel variation728.6%85.7%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation742.9%64.3%
B62Sicilian, Richter-Rauzer, Richter attack714.3%50.0%
C30KGD, classical, Soldatenkov variation728.6%28.6%
C33KGA, Breyer gambit742.9%50.0%
C37KGA, Cochrane gambit714.3%21.4%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
A00Grob, spike attack633.3%33.3%
A01Nimzovich-Larsen attack, Polish variation616.7%58.3%
A66Benoni, pawn storm variation650.0%58.3%
A83Dutch, Staunton gambit, Alekhine variation650.0%41.7%
B00Corn stalk defence633.3%33.3%
B00KP, Nimzovich defence, Marshall gambit616.7%25.0%
B06Norwegian defence666.7%50.0%
B07Pirc, Chinese variation650.0%41.7%
C03French, Tarrasch, Haberditz variation616.7%75.0%
C14French, classical, Stahlberg variation650.0%58.3%
C23Bishop's opening, Wing gambit650.0%41.7%
C30KGD, classical, Hanham variation650.0%58.3%
C33KGA, bishop's gambit, Anderssen variation633.3%50.0%
C33KGA, bishop's gambit, classical defence60.0%33.3%
C37KGA, Silberschmidt gambit633.3%33.3%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C52Evans gambit, Leonhardt variation633.3%50.0%
C52Evans gambit, Levenfish variation616.7%25.0%
C52Evans gambit, Sanders-Alapin variation633.3%50.0%
D00Queen's pawn, Anti-Veresov650.0%58.3%
D08QGD, Albin counter-gambit, Lasker trap616.7%58.3%
D21QGA, Ericson variation60.0%33.3%
D53QGD, Lasker variation633.3%66.7%
E14Queen's Indian, Averbakh variation650.0%41.7%
A02Bird, Hobbs gambit560.0%70.0%
C21Danish gambit, Collijn defence560.0%50.0%
C37KGA, Salvio gambit, Anderssen counter-attack50.0%60.0%
C40QP counter-gambit, Maroczy gambit540.0%80.0%
C45Scotch, Pulling counter-attack520.0%70.0%
C46Four knights, Schultze-Mueller gambit50.0%20.0%
C49Four knights, Gunsberg counter-attack560.0%50.0%
C49Four knights, Svenonius variation560.0%50.0%
C56Two knights defence, Canal variation540.0%40.0%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
D26QGA, classical, Furman variation560.0%30.0%
D40QGD, Semi-Tarrasch, Levenfish variation540.0%60.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D63QGD, Orthodox defence, Capablanca variation540.0%60.0%
E09Catalan, closed, Sokolsky variation520.0%50.0%
A00Global opening425.0%62.5%
A00Grob, Romford counter-gambit425.0%62.5%
A03Mujannah opening450.0%25.0%
A80Dutch, Spielmann gambit450.0%50.0%
A83Dutch, Staunton gambit, Nimzovich variation450.0%25.0%
B00Carr's defence450.0%50.0%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B27Sicilian, Acton extension425.0%87.5%
B27Sicilian, Stiletto (Althouse) variation450.0%25.0%
B40Sicilian, Pin, Jaffe variation40.0%100.0%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6450.0%50.0%
C12French, MacCutcheon, Duras variation425.0%62.5%
C23Bishop's opening, Lewis gambit40.0%75.0%
C24Bishop's opening, Urusov gambit, Panov variation450.0%50.0%
C36KGA, Abbazia defence, Botvinnik variation450.0%50.0%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C41Philidor, Nimzovich, Locock variation450.0%50.0%
C41Philidor, Philidor counter-gambit, del Rio attack40.0%75.0%
C44Tayler opening425.0%37.5%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C51Evans gambit, Goering attack450.0%75.0%
C55Two knights, Max Lange attack, Krause variation450.0%75.0%
C55Two knights, Max Lange attack, Loman defence425.0%37.5%
C57Two knights defence, Fegatello attack, Polerio defence40.0%100.0%
C58Two knights defence, Blackburne variation425.0%62.5%
C60Ruy Lopez, Nuernberg variation40.0%50.0%
C64Ruy Lopez, classical defence, Zaitsev variation4100.0%50.0%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D30QGD, Stonewall variation450.0%75.0%
A00Amsterdam attack30.0%100.0%
A00Lasker simul special333.3%50.0%
A38English, symmetrical, main line with b3366.7%33.3%
A43Hawk (Habichd) defence366.7%33.3%
A56Vulture defence333.3%83.3%
C11French, Steinitz, Bradford attack333.3%50.0%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation366.7%66.7%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C30KGD, classical, Svenonius variation366.7%66.7%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
C33King's gambit accepted333.3%16.7%
C39KGA, Kieseritsky, Brentano (Campbell) defence333.3%50.0%
C39KGA, Kieseritsky, Brentano defence333.3%50.0%
C39KGA, Kieseritsky, Brentano defence, Caro variation3100.0%50.0%
C40Latvian, Behting variation3100.0%50.0%
C41Philidor, Lopez counter-gambit30.0%66.7%
C42Petrov, classical attack, Tarrasch variation366.7%66.7%
C50Rousseau gambit333.3%50.0%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C83Ruy Lopez, open, Breslau variation366.7%66.7%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C89Ruy Lopez, Marshall, Kevitz variation3100.0%50.0%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
D19QGD Slav, Dutch, Saemisch variation333.3%50.0%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
A02Bird's opening, Swiss gambit250.0%75.0%
A04Reti, Herrstroem gambit20.0%100.0%
A04Reti, Wade defence20.0%50.0%
A10English, Jaenisch gambit20.0%100.0%
A80Dutch, Von Pretzel gambit20.0%100.0%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation250.0%25.0%
B02Alekhine's defence, Two pawns' attack, Mikenas variation20.0%0.0%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
C10French, Marshall variation250.0%25.0%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
C20KP, King's head opening250.0%25.0%
C23Bishop's opening, Lopez gambit20.0%0.0%
C23Bishop's opening, MacDonnell double gambit250.0%25.0%
C25Vienna, Steinitz gambit250.0%25.0%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C33KGA, bishop's gambit, Bryan counter-gambit20.0%0.0%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C35KGA, Cunningham, three pawns gambit20.0%100.0%
C40King's knight opening20.0%50.0%
C40Latvian, Nimzovich variation20.0%50.0%
C41Philidor, Paulsen attack250.0%25.0%
C41Philidor, Steinitz variation20.0%0.0%
C43Petrov, modern attack, Steinitz variation250.0%75.0%
C51Evans gambit declined, Lange variation20.0%0.0%
C51Evans gambit, Ulvestad variation20.0%100.0%
C53Giuoco Piano, Eisinger variation20.0%100.0%
C55Giuoco piano20.0%50.0%
C55Two knights defence, Keidanz variation2100.0%50.0%
C60Ruy Lopez, Vinogradov variation250.0%75.0%
C65Ruy Lopez, Berlin defence, Anderssen variation250.0%75.0%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%25.0%
D34QGD, Tarrasch, Bogolyubov variation250.0%25.0%
D50QGD, Semi-Tarrasch, Krause variation2100.0%50.0%
D55QGD, Pillsbury attack250.0%75.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
E87King's Indian, Saemisch, orthodox, Bronstein variation250.0%75.0%
A00Amar gambit10.0%0.0%
A02Bird, From gambit, Lipke variation10.0%0.0%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
B12Caro-Masi defence1100.0%50.0%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation10.0%100.0%
C33KGA, bishop's gambit, McDonnell attack10.0%100.0%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C41Philidor, Hanham, Kmoch variation10.0%100.0%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C44Scotch gambit, Hanneken variation10.0%100.0%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C52Evans gambit, compromised defence, Potter variation10.0%100.0%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C55Two knights, Max Lange attack, Rubinstein variation1100.0%50.0%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C78Ruy Lopez, Rabinovich variation10.0%0.0%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
D28QGA, classical, Flohr variation10.0%0.0%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D80Gruenfeld, Lundin variation10.0%0.0%
E36Nimzo-Indian, classical, Noa variation, main line10.0%0.0%

Created in 2005-2013 by CCRL team
Last games added on May 8, 2021