CCRL 40/40
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 756'425 games
played by 1'967 programs
103446 CPU days (X2 4600+)

White wins: 259'856 (34.4%)
Black wins: 192'693 (25.5%)
Draws: 303'876 (40.2%)
White score: 54.4%

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) attack1837435.2%53.2%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1350540.3%56.4%
D45QGD semi-Slav, Stoltz variation1123043.5%53.4%
A15English opening976642.7%53.5%
B12Caro-Kann, advance variation918838.1%56.3%
A04Reti opening693638.0%54.3%
D47QGD semi-Slav, Meran, Wade variation679239.4%53.5%
D43QGD semi-Slav627541.4%52.8%
E12Queen's Indian, Petrosian system608642.8%54.2%
E32Nimzo-Indian, classical variation588142.2%53.6%
A29English, four knights, kingside fianchetto583941.0%51.8%
A00Benko's opening574141.5%52.4%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6559233.7%51.4%
B22Sicilian, Alapin's variation (2.c3)552043.6%54.5%
D30Queen's gambit declined549645.3%55.7%
A20English opening507138.1%54.5%
D37QGD, 4.Nf3502746.5%52.7%
B06Robatsch (modern) defence495136.3%56.6%
D58QGD, Tartakower (Makagonov-Bondarevsky) system486746.3%52.0%
C11French, Burn variation485244.2%52.9%
B92Sicilian, Najdorf, Opovcensky variation482540.1%53.1%
D02Queen's pawn game455341.1%52.7%
B40Sicilian defence442539.1%54.1%
E12Queen's Indian, 4.Nc3432139.9%53.2%
A07Reti, King's Indian attack (Barcza system)399341.4%53.7%
E04Catalan, open, 5.Nf3396643.5%53.3%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)392837.7%56.1%
D37QGD, classical variation (5.Bf4)385844.9%55.2%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)385732.9%56.2%
E10Queen's pawn game379145.4%55.6%
C91Ruy Lopez, closed, Bogolyubov variation369943.0%53.9%
D27QGA, classical, 6...a6368050.4%55.1%
D11QGD Slav, 4.e3366842.3%55.4%
B47Sicilian, Taimanov (Bastrikov) variation359441.4%54.2%
B17Caro-Kann, Steinitz variation356542.8%53.7%
D38QGD, Ragozin variation356446.2%52.4%
D10QGD Slav defence353741.0%53.9%
B84Sicilian, Scheveningen (Paulsen), classical variation350538.6%51.8%
D15QGD Slav, 4.Nc3349439.8%54.8%
C07French, Tarrasch, open variation343347.7%53.5%
C67Ruy Lopez, Berlin defence, open variation338346.7%54.2%
A45Trompovsky attack (Ruth, Opovcensky opening)332935.6%52.1%
B50Sicilian325940.9%53.0%
B27Sicilian, Hungarian variation321941.0%57.7%
C11French, Steinitz, Boleslavsky variation315935.1%57.5%
A05Reti opening300737.2%53.5%
D85Gruenfeld, modern exchange variation299346.2%55.9%
B48Sicilian, Taimanov variation297937.1%55.9%
B46Sicilian, Taimanov variation297638.3%55.0%
A81Dutch defence292738.4%56.9%
E00Catalan opening291642.5%55.2%
A03Bird's opening290636.0%47.8%
A02Bird's opening283736.3%48.8%
A06Reti, Nimzovich-Larsen attack282341.1%49.7%
D12QGD Slav, 4.e3 Bf5281440.0%54.2%
E06Catalan, closed, 5.Nf3278148.5%53.8%
A30English, symmetrical variation277039.5%54.4%
A01Nimzovich-Larsen attack, modern variation274640.2%50.5%
C88Ruy Lopez, closed, 7...O-O274040.4%52.4%
B23Sicilian, closed273338.4%51.5%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7263233.4%55.6%
A46Queen's pawn game262540.5%54.9%
D20QGA, 3.e4260340.0%56.9%
B19Caro-Kann, classical, Spassky variation260239.5%56.7%
B43Sicilian, Kan, 5.Nc3257538.8%56.5%
A30English, symmetrical, hedgehog system252746.7%55.7%
E60King's Indian, 3.Nf3252339.3%57.9%
C65Ruy Lopez, Berlin defence251339.4%50.9%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)250941.2%55.9%
B01Scandinavian, Pytel-Wade variation250744.4%58.0%
D85Gruenfeld, exchange variation246847.6%56.5%
B90Sicilian, Najdorf244636.6%53.5%
B01Scandinavian (centre counter) defence239241.7%57.0%
C19French, Winawer, advance, poisoned pawn variation239233.5%60.7%
A10English opening238437.6%55.0%
B30Sicilian defence233240.8%54.5%
C45Scotch game223542.6%53.4%
C43Petrov, modern attack, Symmetrical variation220745.1%53.3%
B81Sicilian, Scheveningen, Keres attack215934.4%59.5%
E21Nimzo-Indian, three knights variation213541.3%53.9%
B08Pirc, classical system, 5.Be2212738.6%56.9%
A07Reti, King's Indian attack211242.4%53.2%
E63King's Indian, fianchetto, Panno variation205837.3%57.2%
C10French, Rubinstein variation203949.1%55.4%
B33Sicilian, Pelikan, Chelyabinsk variation201035.7%57.3%
D11QGD Slav, 3.Nf3200540.1%55.9%
C44Ponziani, Jaenisch counter-attack200046.2%53.0%
C00French, King's Indian attack196537.8%51.0%
B10Caro-Kann defence194435.8%53.0%
E15Queen's Indian, 4.g3194446.6%55.9%
A40Queen's pawn193837.0%55.3%
A35English, symmetrical, four knights system193243.7%53.6%
E81King's Indian, Saemisch, 5...O-O191434.0%54.9%
B20Sicilian defence189035.9%50.6%
C03French, Tarrasch185844.8%56.9%
B35Sicilian, accelerated fianchetto, modern variation with Bc4185643.2%52.9%
C53Giuoco Piano184537.9%52.7%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)183838.6%56.4%
A41Queen's Pawn183035.7%54.2%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)179744.0%54.0%
A45Queen's pawn game179239.2%53.9%
E11Bogo-Indian defence, Gruenfeld variation178540.2%55.9%
A13English opening177636.7%51.7%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation176947.7%55.3%
B45Sicilian, Taimanov variation175838.0%56.8%
A21English, Kramnik-Shirov counterattack175041.0%52.5%
A80Dutch174435.4%54.4%
D00Levitsky attack (Queen's bishop attack)171037.0%52.3%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6170346.3%55.5%
C02French, advance, Paulsen attack168733.5%54.7%
B42Sicilian, Kan, 5.Bd3164436.9%58.0%
A17English, Nimzo-English opening161839.6%53.5%
C42Petrov, classical attack, Jaenisch variation161246.0%58.3%
E14Queen's Indian, 4.e3160039.8%53.5%
A07Reti, King's Indian attack, Yugoslav variation158740.3%52.8%
A00Polish (Sokolsky) opening157738.5%48.5%
B23Sicilian, closed, 2...Nc6157341.4%52.0%
A40Queen's pawn, Keres defence152744.0%56.6%
B93Sicilian, Najdorf, 6.f4152239.9%50.6%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation152244.3%51.2%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7151542.8%49.8%
D39QGD, Ragozin, Vienna variation151250.9%51.1%
E18Queen's Indian, old main line, 7.Nc3150643.6%56.6%
A00Dunst (Sleipner, Heinrichsen) opening149335.8%49.6%
C78Ruy Lopez, Archangelsk (counterthrust) variation147942.2%55.0%
C88Ruy Lopez, closed, anti-Marshall 8.a4146339.5%53.9%
B07Pirc defence146137.7%56.7%
A48King's Indian, Torre attack145038.9%49.4%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack144539.0%55.7%
C50Giuoco Pianissimo144438.5%53.0%
B56Sicilian143839.7%53.3%
B97Sicilian, Najdorf, 7...Qb6143833.0%46.2%
B18Caro-Kann, classical variation142945.0%54.3%
B21Sicilian, Grand Prix attack141835.8%52.5%
D27QGA, classical, Rubinstein variation141147.6%55.6%
A22English, Bremen, Smyslov system140538.7%48.7%
A33English, symmetrical variation140048.4%54.4%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3139544.7%53.0%
E92King's Indian, Gligoric-Taimanov system138733.5%58.5%
E60King's Indian, 3.g3138341.9%56.3%
D10QGD Slav defence, exchange variation137544.6%55.3%
D48QGD semi-Slav, Meran, 8...a6136149.7%48.8%
E11Bogo-Indian defence134939.4%55.1%
E11Bogo-Indian defence, Nimzovich variation134838.1%58.2%
C45Scotch, Mieses variation131341.2%54.2%
D31QGD, Charousek (Petrosian) variation131245.5%52.8%
A21English opening130633.1%54.5%
B33Sicilian, Sveshnikov variation130238.6%50.9%
A43Old Benoni defence128835.3%59.2%
E19Queen's Indian, old main line, 9.Qxc3128745.5%58.7%
E12Queen's Indian, Miles variation127044.2%52.6%
B10Caro-Kann, anti-anti-Caro-Kann defence126648.6%52.3%
D19QGD Slav, Dutch variation126038.7%57.5%
B57Sicilian, Sozin, Benko variation125239.1%51.7%
C01French, exchange variation123744.0%53.6%
C02French, advance, Euwe variation123635.9%54.2%
B42Sicilian, Kan, Polugaievsky variation123536.1%54.3%
C80Ruy Lopez, open, 8...Be6121638.0%43.0%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack121535.4%58.4%
D47QGD semi-Slav, Meran variation121449.8%54.9%
A16English opening121335.9%53.1%
C84Ruy Lopez, closed defence121340.5%51.5%
C08French, Tarrasch, open, 4.ed ed121150.3%54.5%
C88Ruy Lopez, closed120341.5%52.6%
B00King's pawn opening119936.9%57.4%
C55Two knights defence (Modern bishop's opening)118838.6%56.0%
C91Ruy Lopez, closed, 9.d4118838.7%57.9%
A11English, Caro-Kann defensive system118640.2%53.9%
B80Sicilian, Scheveningen variation118630.9%54.4%
A46Queen's pawn, Torre attack117936.5%51.7%
B96Sicilian, Najdorf, 7.f4117133.9%51.3%
C90Ruy Lopez, closed (with ...d6)116936.5%51.5%
A36English, ultra-symmetrical variation116638.4%53.0%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc116448.6%55.8%
E68King's Indian, fianchetto, classical variation, 8.e4115638.4%60.3%
A13English opening, Agincourt variation114640.1%54.2%
D02Queen's bishop game111439.7%53.0%
A05Reti, King's Indian attack109540.5%53.4%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)108739.2%48.6%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation108639.7%56.7%
B09Pirc, Austrian attack, 6.Bd3107639.7%59.9%
A34English, symmetrical, three knights system107341.5%55.1%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7107337.1%55.8%
C02French, advance variation107232.7%55.8%
B97Sicilian, Najdorf, Poisoned pawn variation106844.8%49.7%
C42Petrov, Nimzovich attack106045.6%55.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3105744.3%57.4%
C78Ruy Lopez, 5.O-O105646.3%54.5%
A13English, Neo-Catalan accepted104545.6%56.7%
A15English, 1...Nf6 (Anglo-Indian defense)103639.6%55.1%
B53Sicilian, Chekhover variation103042.1%49.5%
C09French, Tarrasch, open variation, main line101748.9%56.9%
B90Sicilian, Najdorf, Adams attack101237.7%51.4%
C19French, Winawer, advance, positional main line99430.4%57.4%
B95Sicilian, Najdorf, 6...e698738.8%49.5%
C06French, Tarrasch, closed variation, main line98337.7%59.5%
C48Four knights, Rubinstein counter-gambit98039.0%52.8%
B06Robatsch defence, Two knights, Suttles variation97538.3%58.4%
D86Gruenfeld, exchange, classical variation97545.6%55.2%
B89Sicilian, Sozin, 7.Be397236.6%50.3%
A49King's Indian, fianchetto without c497140.8%56.5%
E94King's Indian, orthodox variation95536.6%54.5%
A48King's Indian, London system94839.2%53.4%
A28English, four knights, 4.e393936.2%52.0%
B13Caro-Kann, Panov-Botvinnik attack93447.8%53.1%
A01Nimzovich-Larsen attack, classical variation92936.2%49.9%
A90Dutch defence92839.1%61.2%
C11French, Steinitz variation92238.8%54.4%
C24Bishop's opening, Berlin defence91741.8%53.9%
C42Petrov, classical attack, Marshall variation91643.1%57.0%
C05French, Tarrasch, closed variation91431.7%60.1%
A04Reti v Dutch91334.6%58.8%
D53QGD, 4.Bg5 Be791145.3%54.3%
C99Ruy Lopez, closed, Chigorin, 12...c5d490240.4%62.7%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation90135.1%55.6%
C41Philidor, Improved Hanham variation89139.5%56.2%
D35QGD, exchange, positional line89140.7%54.0%
A37English, symmetrical variation88640.6%50.1%
B76Sicilian, dragon, Yugoslav attack, Rauser variation88433.3%64.8%
A34English, symmetrical variation88139.2%54.1%
B90Sicilian, Najdorf, Lipnitzky attack88135.6%49.9%
B36Sicilian, accelerated fianchetto, Maroczy bind87945.1%58.0%
E39Nimzo-Indian, classical, Pirc variation87638.4%55.0%
E94King's Indian, orthodox, 7...Nbd786033.4%60.8%
A53Old Indian defence85639.0%56.0%
D31QGD, semi-Slav85638.9%55.1%
E73King's Indian, Averbakh system85332.5%54.7%
A40Queen's pawn, Franco-Indian (Keres) defence85237.9%55.8%
D20Queen's gambit accepted84745.9%55.7%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne183926.8%61.1%
D91Gruenfeld, 5.Bg583739.1%48.1%
A31English, symmetrical, Benoni formation83640.4%55.7%
E46Nimzo-Indian, Reshevsky variation83644.3%51.2%
E70King's Indian, 4.e483533.3%58.7%
A41Old Indian, Tartakower (Wade) variation81934.7%61.3%
C80Ruy Lopez, open, Bernstein variation81647.2%62.7%
C90Ruy Lopez, closed, Pilnik variation79935.5%51.8%
A40Modern defence79537.2%58.0%
A88Dutch, Leningrad, main variation with c678538.5%57.2%
B01Scandinavian defence78040.9%57.9%
E90King's Indian, 5.Nf377433.3%56.8%
A80Dutch, 2.Bg5 variation77133.1%54.0%
B44Sicilian, Szen (`anti-Taimanov') variation76439.1%54.3%
E17Queen's Indian, old main line, 6.O-O76341.8%58.5%
A14English, Neo-Catalan declined76243.6%54.2%
A57Benko gambit half accepted76139.8%57.2%
D73Neo-Gruenfeld, 5.Nf375851.3%55.3%
B04Alekhine's defence, modern, Larsen variation75641.9%60.6%
A28English, four knights, Marini variation75339.6%51.1%
D44QGD semi-Slav, anti-Meran gambit75035.2%58.3%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation74543.6%55.6%
A48King's Indian, East Indian defence74438.7%51.3%
B09Pirc, Austrian attack, dragon formation74438.8%58.5%
B87Sicilian, Sozin with ...a6 and ...b573936.5%51.2%
D00Queen's pawn, Mason variation73940.6%50.9%
B32Sicilian defence73838.5%56.2%
D48QGD semi-Slav, Meran, Reynolds' variation73340.2%56.3%
B13Caro-Kann, exchange variation73140.2%52.0%
C97Ruy Lopez, closed, Chigorin defence72931.0%63.0%
D30QGD72947.9%51.9%
B11Caro-Kann, Two knights, 3...Bg472639.3%55.7%
E59Nimzo-Indian, 4.e3, main line72443.6%53.2%
D78Neo-Gruenfeld, 6.O-O c671742.0%54.6%
E34Nimzo-Indian, classical, Noa variation71752.6%54.3%
D35QGD, exchange, positional line, 5...c671541.5%54.8%
A25English, closed system71434.5%53.8%
C77Ruy Lopez, Anderssen variation71141.4%51.2%
E61King's Indian defence, 3.Nc370937.7%55.6%
D31QGD, 3.Nc370641.9%55.2%
B89Sicilian, Velimirovic attack70333.4%51.3%
C95Ruy Lopez, closed, Breyer, Borisenko variation70339.7%56.4%
C42Petrov, classical attack70047.4%56.6%
B40Sicilian, Anderssen variation69940.8%58.2%
C00French, Chigorin variation69231.6%50.8%
B94Sicilian, Najdorf, 6.Bg568935.8%53.0%
A09Reti, advance variation68740.3%49.3%
A22English opening68736.8%50.7%
C00French defence, Steiner variation68643.3%51.1%
A46Queen's pawn, Yusupov-Rubinstein system68240.8%52.3%
A37English, symmetrical, Botvinnik system reversed68137.3%50.7%
C16French, Winawer, advance variation68134.5%57.6%
A13English, Neo-Catalan67640.7%52.9%
A62Benoni, fianchetto variation66935.0%56.2%
B21Sicilian, Smith-Morra gambit66741.1%47.5%
C41Philidor, exchange variation66736.7%58.4%
D80Gruenfeld defence66748.0%54.7%
A25English, Sicilian reversed66633.6%52.0%
B70Sicilian, dragon variation66241.2%51.7%
C15French, Winawer (Nimzovich) variation66241.1%55.7%
D07QGD, Chigorin defence66235.3%57.3%
D13QGD Slav, exchange variation66245.8%55.7%
C14French, classical, Steinitz variation65735.0%57.8%
D80Gruenfeld, Stockholm variation65742.9%54.3%
D31QGD, semi-Slav, Marshall gambit65643.1%53.0%
D04Queen's pawn game65541.5%50.2%
D14QGD Slav, exchange variation, 6.Bf4 Bf565049.4%51.5%
D17QGD Slav, Krause attack65039.2%58.2%
D92Gruenfeld, 5.Bf465044.8%57.0%
D77Neo-Gruenfeld, 6.O-O64646.3%54.3%
E20Nimzo-Indian, Kmoch variation64638.5%53.5%
E41Nimzo-Indian, 4.e3 c564643.8%54.4%
A07Reti, King's Indian attack, Keres variation64134.8%54.4%
E71King's Indian, Makagonov system (5.h3)63734.2%59.5%
B23Sicilian, Grand Prix attack63535.7%49.5%
D34QGD, Tarrasch, Prague variation, Normal position63447.5%56.2%
A58Benko gambit accepted63233.1%58.9%
D03Torre attack (Tartakower variation)63239.6%50.6%
C69Ruy Lopez, exchange, Gligoric variation62941.0%56.4%
A41Old Indian defence62731.6%54.4%
C88Ruy Lopez, Trajkovic counter-attack62640.9%51.9%
B54Sicilian62337.9%55.2%
E12Queen's Indian defence62041.8%53.8%
A22English, Bremen, reverse dragon61940.7%50.4%
B04Alekhine's defence, modern, fianchetto variation61934.4%57.8%
D26QGA, classical variation61951.5%52.6%
B29Sicilian, Nimzovich-Rubinstein variation61440.6%60.0%
C96Ruy Lopez, closed (10...c5)61433.2%64.0%
E17Queen's Indian, Opovcensky variation61438.3%54.2%
A10English, Anglo-Dutch defense61133.2%52.9%
C69Ruy Lopez, exchange variation, 5.O-O60641.7%52.9%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation60038.0%54.0%
A01Nimzovich-Larsen attack, symmetrical variation59740.4%49.2%
D17QGD Slav, Wiesbaden variation59642.3%57.4%
A57Benko gambit59336.8%56.3%
B39Sicilian, accelerated fianchetto, Breyer variation59340.8%58.0%
B49Sicilian, Taimanov variation58844.7%58.2%
B10Caro-Kann, closed (Breyer) variation58438.5%52.1%
C10French, Fort Knox variation58240.4%57.3%
C45Scotch, Schmidt variation58251.0%47.2%
D41QGD, Semi-Tarrasch, 5.cd58247.6%58.0%
C46Four knights game57943.2%50.3%
A33English, symmetrical, Geller variation57838.9%54.2%
A01Nimzovich-Larsen attack57736.7%52.9%
B06Robatsch defence57736.6%58.5%
A85Dutch with c4 & Nc357535.5%54.6%
B60Sicilian, Richter-Rauzer57235.1%57.8%
C10French, Paulsen variation57133.5%58.2%
B99Sicilian, Najdorf, 7...Be7 main line56929.2%53.4%
B07Robatsch defence, Geller's system56537.2%57.0%
A06Reti opening56437.2%53.4%
B20Sicilian, Keres variation (2.Ne2)56440.8%52.5%
B03Alekhine's defence, exchange variation56339.3%58.3%
B05Alekhine's defence, modern variation, 4...Bg456332.3%65.2%
A56Benoni defence55933.8%58.9%
B26Sicilian, closed, 6.Be355632.9%49.6%
E91King's Indian, 6.Be255632.9%64.3%
D30QGD, Vienna variation55354.1%52.5%
C42Petrov, classical attack, Chigorin variation54941.0%57.1%
E43Nimzo-Indian, Fischer variation54836.7%53.7%
E60King's Indian defence54834.9%57.0%
B12Caro-Kann, Tartakower (fantasy) variation54337.4%54.4%
E30Nimzo-Indian, Leningrad variation54135.1%48.2%
C78Ruy Lopez, Moeller defence54042.2%53.5%
E38Nimzo-Indian, classical, 4...c554037.8%60.4%
A50Queen's pawn game53337.5%55.3%
A70Benoni, classical with e4 and Nf353339.2%59.2%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)53344.1%53.9%
D34QGD, Tarrasch, Prague variation, 9.Bg553247.4%57.5%
A23English, Bremen system, Keres variation53140.7%48.2%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation53032.3%60.7%
B23Sicilian, chameleon variation52435.1%58.4%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation52429.2%62.7%
E92King's Indian, Petrosian system, Stein variation52332.7%53.3%
B01Scandinavian, Marshall variation52044.4%60.1%
B02Alekhine's defence52035.8%55.0%
B83Sicilian, Scheveningen, 6.Be251939.7%52.8%
D45QGD semi-Slav, 5...Nd751338.4%54.1%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd451140.5%55.9%
D05Queen's pawn game50936.7%52.2%
A84Dutch defence50839.4%55.5%
A08Reti, King's Indian attack50341.9%52.2%
D82Gruenfeld, 4.Bf450345.1%53.6%
A14English, Symmetrical, Keres defence50247.2%57.1%
A38English, symmetrical variation50245.2%55.5%
B10Caro-Kann, anti-Caro-Kann defence50133.3%60.2%
A09Reti opening50040.4%53.0%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb649744.3%57.1%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed49444.3%50.5%
B83Sicilian, modern Scheveningen, main line49344.2%53.8%
C45Scotch, Potter variation49339.8%51.5%
B88Sicilian, Sozin, Leonhardt variation49140.9%54.7%
C42Petrov, Cozio (Lasker) attack48848.8%52.7%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd348647.1%51.7%
B18Caro-Kann, classical, 6.h448540.8%54.6%
C89Ruy Lopez, Marshall counter-attack48553.6%54.6%
D30QGD, Hastings variation48547.0%52.8%
C80Ruy Lopez, open, 7.Bb348340.8%52.9%
C00French defence47633.6%57.4%
D87Gruenfeld, exchange, Spassky variation46942.0%54.3%
B08Pirc, classical (two knights) system46737.0%57.7%
D17QGD Slav, Carlsbad variation46737.5%60.3%
C65Ruy Lopez, Berlin defence, Beverwijk variation46635.8%57.6%
E67King's Indian, fianchetto, classical variation46439.9%55.3%
A27English, three knights system46134.7%53.1%
A61Benoni defence45931.6%62.9%
A28English, four knights, Nimzovich variation45834.3%54.0%
D90Gruenfeld, Three knights variation45747.3%54.7%
E41Nimzo-Indian, e3, Huebner variation45733.5%50.7%
C47Four knights, Scotch, 4...exd445649.8%53.8%
D79Neo-Gruenfeld, 6.O-O, main line44848.7%54.2%
D00Queen's pawn game44639.0%48.9%
A00Van't Kruijs opening44540.0%51.5%
B06Robatsch defence, Pseudo-Austrian attack44234.2%55.3%
A47Queen's Indian defence44038.6%52.3%
B82Sicilian, Scheveningen, 6.f443932.1%57.3%
C69Ruy Lopez, exchange, Bronstein variation43932.1%50.0%
B16Caro-Kann, Bronstein-Larsen variation43831.3%62.2%
C44Ponziani, Steinitz variation43741.4%45.7%
D97Gruenfeld, Russian, Prins variation42942.7%57.9%
A28English, four knights, Romanishin variation42850.5%52.8%
B58Sicilian, Boleslavsky variation42736.8%47.9%
E52Nimzo-Indian, 4.e3, main line with ...b642639.2%53.2%
C18French, Winawer, advance variation42526.8%63.1%
C50Giuoco Piano42441.5%52.4%
E01Catalan, closed42248.3%51.9%
E69King's Indian, fianchetto, classical main line41733.8%61.3%
D46QGD semi-Slav, Chigorin defence41644.5%54.0%
B00KP, Nimzovich defence41533.3%61.2%
B41Sicilian, Kan, Maroczy bind (Reti variation)41536.1%57.6%
D40QGD, Semi-Tarrasch defence41542.2%54.8%
A25English, closed, 5.Rb140939.9%52.2%
C89Ruy Lopez, Marshall, main line, 14...Qh340951.3%51.3%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d540841.2%48.8%
A39English, symmetrical, main line with d440741.8%57.5%
B83Sicilian, modern Scheveningen40542.5%47.7%
B33Sicilian defence40434.9%53.8%
A28English, four knights, Capablanca variation40337.5%55.2%
D01Richter-Veresov attack39836.7%46.0%
A55Old Indian, main line39638.1%58.2%
B25Sicilian, closed, 6.f439640.7%50.9%
D94Gruenfeld, 5.e339644.9%57.8%
C22Centre game39438.3%46.3%
D45QGD semi-Slav, 5.e339240.6%56.8%
A00Anderssen's opening39040.8%51.4%
D52QGD, Cambridge Springs defence, Bogoljubow variation38946.8%56.0%
C92Ruy Lopez, closed, 9.h338242.7%52.2%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd238137.0%60.8%
C26Vienna, Paulsen-Mieses variation38041.6%53.4%
E84King's Indian, Saemisch, Panno main line38037.4%52.6%
D16QGD Slav, Soultanbeieff variation37949.3%53.4%
C64Ruy Lopez, classical defence, Benelux variation 37838.6%56.3%
E00Queen's pawn game37642.0%56.4%
B24Sicilian, closed37436.9%48.9%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system37346.1%53.4%
A56Benoni defence, Hromodka system37223.9%65.7%
B08Pirc, classical, h3 system37238.4%59.3%
B54Sicilian, Prins (Moscow) variation37236.8%55.8%
D02Queen's pawn game, Chigorin variation37140.7%58.4%
A10English, Adorjan defence36838.3%54.5%
B19Caro-Kann, classical, 7...Nd736850.8%52.9%
C12French, MacCutcheon, Lasker variation, 8...g636436.0%59.5%
A34English, symmetrical, Rubinstein system36339.1%52.6%
D00Queen's pawn, Mason variation, Steinitz counter-gambit35937.6%49.2%
C72Ruy Lopez, modern Steinitz defence, 5.O-O35644.1%58.8%
A42Modern defence, Averbakh system35432.8%58.5%
D52QGD, Cambridge Springs defence, Yugoslav variation35439.0%57.3%
D55QGD, Petrosian variation35352.1%53.5%
C22Centre game, Berger variation35237.5%54.8%
D35QGD, exchange variation35242.6%56.5%
C50Giuoco Pianissimo, Italian four knights variation35038.6%51.6%
E53Nimzo-Indian, 4.e3, main line with ...c534839.9%54.7%
B74Sicilian, dragon, classical, 9.Nb334652.3%47.5%
B73Sicilian, dragon, classical, 8.O-O34444.5%51.9%
A52Budapest, Rubinstein variation34340.2%60.3%
A61Benoni, Nimzovich (knight's tour) variation34228.4%59.2%
D17QGD Slav, Czech defence34248.0%54.4%
B85Sicilian, Scheveningen, classical main line34046.8%55.4%
C02French, advance, Steinitz variation34033.2%53.1%
D02Queen's pawn game, Krause variation34044.7%54.4%
C17French, Winawer, advance, 5.a333931.0%63.3%
A28English, four knights system33844.1%51.0%
C63Ruy Lopez, Schliemann defence, Berger variation33740.9%57.3%
A89Dutch, Leningrad, main variation with Nc633536.7%63.4%
C28Vienna game33541.8%53.4%
B20Sicilian, Steinitz variation33444.0%49.9%
C17French, Winawer, advance, Bogolyubov variation33439.2%51.0%
A22English, Carls' Bremen system33339.9%54.2%
D25QGA, Janowsky-Larsen variation33139.0%57.9%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c632828.4%53.5%
B98Sicilian, Najdorf variation32730.0%57.8%
B07Pirc, Ufimtsev-Pytel variation32538.8%59.7%
A32English, symmetrical variation32442.0%58.0%
A19English, Mikenas-Carls, Sicilian variation32242.5%54.2%
C02French, advance, Wade variation32239.4%56.7%
C49Four knights, symmetrical, Metger unpin32136.8%50.8%
A42Pterodactyl defence32036.9%63.8%
B07Pirc, Byrne variation31732.5%57.3%
E16Queen's Indian, Capablanca variation31740.7%56.3%
E70King's Indian, Kramer system31429.6%57.8%
C59Two knights defence, Steinitz variation31329.7%47.4%
D30QGD, Capablanca-Duras variation31245.2%54.3%
E95King's Indian, orthodox, 7...Nbd7, 8.Re131235.3%55.8%
D55QGD, Neo-orthodox variation, 7.Bxf631145.7%51.8%
E16Queen's Indian, Yates variation30936.6%58.7%
E44Nimzo-Indian, Fischer variation, 5.Ne230935.9%55.2%
B34Sicilian, accelerated fianchetto, modern variation30836.0%52.4%
C04French, Tarrasch, Guimard main line30729.0%59.4%
D81Gruenfeld, Russian variation30542.0%63.0%
E56Nimzo-Indian, 4.e3, main line with 7...Nc630552.8%55.9%
B44Sicilian defence30443.1%52.1%
C77Ruy Lopez, Wormald (Alapin) attack30141.9%53.8%
E66King's Indian, fianchetto, Yugoslav Panno30133.9%56.8%
A87Dutch, Leningrad, main variation30040.3%54.5%
B06Robatsch defence, Two knights variation30033.3%62.3%
D29QGA, classical, 8...Bb730041.0%47.8%
D56QGD, Lasker defence29845.3%53.5%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation29735.4%51.7%
E88King's Indian, Saemisch, orthodox, 7.d5 c629732.3%57.9%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O29628.4%55.4%
E80King's Indian, Saemisch variation29633.8%57.8%
B14Caro-Kann, Panov-Botvinnik attack, 5...g629549.8%53.7%
B15Caro-Kann, Tartakower (Nimzovich) variation29541.0%55.1%
A50Kevitz-Trajkovich defence29338.2%58.0%
A65Benoni, 6.e429325.9%56.0%
C44Ponziani opening29335.8%44.5%
D00Queen's pawn, Chigorin variation29334.5%52.0%
A26English, Botvinnik system29237.7%52.4%
B76Sicilian, dragon, Yugoslav attack, 7...O-O29134.7%52.1%
E10Blumenfeld counter-gambit29042.4%55.0%
B15Caro-Kann, Gurgenidze system28939.1%57.3%
E91King's Indian, Kazakh variation28836.8%55.6%
A00Saragossa opening28629.0%49.8%
A18English, Mikenas-Carls, Flohr variation28537.5%59.8%
A26English, closed system28537.5%52.1%
D32QGD, Tarrasch defence28546.7%54.2%
B07Pirc, Sveshnikov system28434.5%52.8%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation28443.0%64.1%
D23QGA, Mannheim variation28345.9%52.7%
B28Sicilian, O'Kelly variation28038.9%55.2%
B10Caro-Kann, Two knights variation27937.3%60.2%
A05Reti, King's Indian attack, Spassky's variation27741.9%52.3%
D71Neo-Gruenfeld, 5.cd27746.2%56.0%
D47QGD semi-Slav, neo-Meran (Lundin variation)27648.2%54.5%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc227247.1%62.5%
D15QGD Slav, Schlechter variation27142.8%59.0%
C44Scotch gambit, Dubois-Reti defence27040.0%52.2%
D30QGD Slav27045.9%54.8%
A56Czech Benoni defence26927.9%68.2%
B00Owen defence26933.1%61.5%
E25Nimzo-Indian, Saemisch, Keres variation26946.1%53.2%
C18French, Winawer, classical variation26832.1%58.2%
C63Ruy Lopez, Schliemann defence26842.9%57.3%
D35QGD, exchange, Saemisch variation26847.0%54.5%
C52Evans gambit26740.1%47.8%
C69Ruy Lopez, exchange variation, Alapin gambit26741.2%50.6%
E17Queen's Indian, anti-Queen's Indian system26739.0%53.2%
B02Alekhine's defence, Two pawns' (Lasker's) attack26644.4%54.9%
A80Dutch, Krejcik gambit26534.3%54.2%
B09Pirc, Austrian attack, 6.Be326532.1%58.3%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation26038.8%58.3%
C19French, Winawer, advance, 6...Ne725934.4%56.6%
C70Ruy Lopez, Cozio defence deferred25845.0%53.1%
E62King's Indian, fianchetto, Larsen system25742.4%62.1%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation25637.9%60.0%
E36Nimzo-Indian, classical, Noa variation, 5.a325445.7%52.4%
E92King's Indian, Andersson variation25453.5%50.4%
A84Dutch defence, Rubinstein variation25333.6%59.1%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f425338.3%54.0%
A08Reti, King's Indian attack, French variation25137.8%48.0%
B42Sicilian, Kan, Swiss cheese variation25135.5%61.6%
D93Gruenfeld with Bf4 e325049.6%52.0%
D18QGD Slav, Dutch variation24939.8%59.2%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation24732.0%58.9%
A13English, Romanishin gambit24641.1%56.3%
D42QGD, Semi-Tarrasch, 7.Bd324642.7%56.7%
B02Alekhine's defence, Saemisch attack24538.0%48.8%
B36Sicilian, accelerated fianchetto, Gurgenidze variation24344.0%60.3%
C25Vienna game24334.2%60.7%
C87Ruy Lopez, closed, Averbach variation24341.6%59.5%
D26QGA, 4...e624345.7%54.5%
E87King's Indian, Saemisch, orthodox, 7.d524327.6%59.5%
C42Petrov's defence24044.6%51.5%
C62Ruy Lopez, old Steinitz defence24037.1%54.8%
A01Nimzovich-Larsen attack, Indian variation23931.8%50.2%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence23840.8%52.7%
B75Sicilian, dragon, Yugoslav attack23730.0%57.2%
C26Vienna game23645.3%54.0%
D98Gruenfeld, Russian, Smyslov variation23441.5%60.0%
D10QGD Slav defence, Alekhine variation23341.2%54.9%
E74King's Indian, Averbakh, 6...c523334.8%56.0%
C60Ruy Lopez, Cozio defence23242.7%50.2%
C64Ruy Lopez, classical defence, 4.c323240.9%55.8%
C13French, Albin-Alekhine-Chatard attack23131.2%53.7%
D31QGD, semi-Slav, Noteboom variation22939.3%52.4%
D90Gruenfeld, Flohr variation22936.7%55.0%
C42Petrov three knights game22837.3%57.7%
B44Sicilian, Szen, hedgehog variation22639.8%50.9%
B03Alekhine's defence, four pawns attack22531.6%65.6%
E15Queen's Indian, 4.g3 Bb722539.6%53.6%
A09Reti accepted22340.4%52.5%
B04Alekhine's defence, modern variation22333.6%61.2%
B07Pirc, 150 attack22237.4%61.0%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation22239.2%53.4%
D66QGD, Orthodox defence, Bd3 line22245.9%59.5%
B33Sicilian, Pelikan, Bird variation22138.0%64.3%
D21QGA, 3.Nf322138.9%57.5%
B25Sicilian, closed21937.4%48.9%
D36QGD, exchange, positional line, 6.Qc221942.0%53.9%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)21738.2%54.6%
E62King's Indian, fianchetto with ...Nc621735.5%54.6%
A16English, Anglo-Gruenfeld defense21541.9%53.0%
B57Sicilian, Sozin, not Scheveningen21441.1%56.1%
C00French, Labourdonnais variation21432.2%45.6%
A17English, Queens Indian formation21236.8%59.9%
A17English opening21137.9%53.6%
B15Caro-Kann defence21132.2%51.7%
D61QGD, Orthodox defence, Rubinstein variation21144.5%51.2%
C44Ponziani, Caro variation21042.9%49.5%
C50King's pawn game21036.2%59.5%
E76King's Indian, Four pawns attack21036.7%60.7%
C48Four knights, Spanish variation20952.2%57.7%
D63QGD, Orthodox defence, 7.Rc120935.9%57.7%
A35English, symmetrical variation20834.6%51.9%
B15Caro-Kann, Forgacs variation20841.3%55.3%
C41Philidor's defence20836.5%59.6%
C89Ruy Lopez, Marshall, main line, 12.d2d420842.3%63.0%
E13Queen's Indian, 4.Nc3, main line20835.6%52.4%
B32Sicilian, Labourdonnais-Loewenthal variation20641.7%59.7%
A95Dutch, stonewall with Nc320529.3%58.5%
B32Sicilian, Flohr variation20532.2%61.0%
D16QGD Slav, Steiner variation20537.1%63.9%
C86Ruy Lopez, Worrall attack, sharp line20438.7%54.7%
D14QGD Slav, exchange, Trifunovic variation20449.5%52.7%
C12French, MacCutcheon, Lasker variation20327.6%59.1%
E09Catalan, closed, main line20334.0%60.3%
B58Sicilian, classical20145.3%46.5%
D22QGA, Alekhine defence20040.0%56.5%
A67Benoni, Taimanov variation19924.6%62.6%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O19944.7%56.0%
D00Blackmar gambit19840.9%40.7%
D96Gruenfeld, Russian variation19838.9%55.8%
E16Queen's Indian, Riumin variation19840.4%56.1%
B77Sicilian, dragon, Yugoslav attack, 9...Bd719742.6%55.8%
C96Ruy Lopez, closed, Keres (...Nd7) defence19737.6%65.0%
B41Sicilian, Kan variation19640.3%54.8%
C00French, Two knights variation19435.6%51.3%
C43Petrov, modern attack, main line19446.4%58.2%
D28QGA, classical, 7...b519351.8%56.5%
A61Benoni, Uhlmann variation19222.4%39.3%
C51Evans gambit, Stone-Ware variation19235.4%50.5%
C77Ruy Lopez, Morphy defence19239.1%56.5%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit19139.8%57.6%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd19142.4%61.0%
C59Two knights defence19037.9%48.9%
C36KGA, Abbazia defence, modern variation18940.2%45.0%
C64Ruy Lopez, classical (Cordel) defence18942.3%52.4%
D24QGA, 4.Nc318841.0%50.8%
D35QGD, Harrwitz attack18851.1%55.3%
C16French, Winawer, Petrosian variation18731.6%54.8%
A00Grob's attack18643.5%34.7%
D19QGD Slav, Dutch variation, main line18640.9%57.5%
B12Caro-Kann defence18436.4%51.9%
C82Ruy Lopez, open, St. Petersburg variation18440.2%66.3%
E31Nimzo-Indian, Leningrad, main line18431.0%51.4%
A54Old Indian, Ukrainian variation, 4.Nf318336.6%57.7%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation18343.7%57.9%
C22Centre game, Paulsen attack18137.0%51.7%
C44Scotch, Goering gambit18044.4%57.2%
C49Four knights, symmetrical variation18042.8%55.3%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd518048.3%46.9%
D70Neo-Gruenfeld defence18037.8%56.7%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation18046.7%55.6%
E08Catalan, closed, Qc2 & b318040.6%50.8%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation17935.8%60.9%
C42Petrov, Kaufmann attack17848.9%48.6%
C50Giuoco Pianissimo, Canal variation17843.8%52.8%
A30English, symmetrical, hedgehog, flexible formation17643.2%54.5%
E83King's Indian, Saemisch, Panno formation17542.3%56.6%
E49Nimzo-Indian, 4.e3, Botvinnik system17446.0%56.3%
B80Sicilian, Scheveningen, fianchetto variation17133.9%51.5%
A96Dutch, classical variation17035.9%62.1%
C00French, Schlechter variation17041.2%49.4%
D34QGD, Tarrasch, Prague variation, 7...Be716943.2%55.9%
D72Neo-Gruenfeld, 5.cd, main line16933.7%60.1%
C54Giuoco Piano16853.6%52.4%
C89Ruy Lopez, Marshall counter-attack, 11...c616846.4%54.8%
A12English, Caro-Kann defensive system16738.3%49.1%
B09Pirc, Austrian attack16740.7%59.9%
C84Ruy Lopez, closed, centre attack16748.5%46.4%
D46QGD semi-Slav, Romih variation16737.1%64.1%
C29Vienna gambit16639.2%46.1%
C48Four knights, Spanish, classical defence16445.1%50.6%
A07Reti, King's Indian attack (with ...c5)16341.1%50.0%
D05Colle system16348.5%54.9%
A40Queen's pawn, English defence16141.0%63.4%
C83Ruy Lopez, open, classical defence16149.1%59.9%
C58Two knights defence16036.3%56.3%
A45Blackmar-Diemer gambit15930.2%48.4%
C51Evans gambit declined, 5.a415941.5%45.3%
D44QGD semi-Slav, anti-Meran, Lilienthal variation15930.8%66.4%
D49QGD semi-Slav, Meran, Blumenfeld variation15945.3%50.9%
D99Gruenfeld defence, Smyslov, main line15939.0%59.1%
E00Neo-Indian (Seirawan) attack15931.4%52.8%
E65King's Indian, fianchetto, Yugoslav, 7.O-O15950.3%52.2%
D46QGD semi-Slav, Bogolyubov variation15843.0%57.0%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation15851.9%57.6%
C82Ruy Lopez, open, Dilworth variation15740.8%61.1%
D16QGD Slav accepted, Alapin variation15738.9%66.6%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d515738.9%50.6%
A16English, Anglo-Gruenfeld, Czech defense15633.3%63.5%
C46Four knights, Italian variation15642.3%48.7%
C50Hungarian defence15640.4%49.7%
A01Nimzovich-Larsen attack, English variation15536.1%50.3%
C23Bishop's opening15536.8%54.5%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation15532.3%56.8%
E24Nimzo-Indian, Saemisch variation15548.4%48.1%
C00French, Reti (Spielmann) variation15441.6%51.3%
D94Gruenfeld, Smyslov defence15446.8%57.1%
E94King's Indian, orthodox, Donner variation15438.3%59.4%
C15French, Winawer, Alekhine (Maroczy) gambit15336.6%54.9%
C65Ruy Lopez, Berlin defence, 4.O-O15341.2%59.2%
D49QGD semi-Slav, Meran, Sozin variation15344.4%45.8%
D52QGD, Cambridge Springs defence, Rubinstein variation15339.9%55.2%
D63QGD, Orthodox defence, Swiss, Karlsbad variation15341.8%52.9%
A16English, Anglo-Gruenfeld, Smyslov defense15232.2%54.9%
A36English, symmetrical, Botvinnik system15133.8%52.0%
C93Ruy Lopez, closed, Smyslov defence15139.7%58.3%
B23Sicilian, Grand Prix attack, Schofman variation15040.7%53.0%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence14930.9%59.1%
B86Sicilian, Sozin attack14940.9%54.0%
D24QGA, Bogolyubov variation14949.0%56.7%
A02Bird, From gambit14834.5%50.3%
D15QGD Slav, 5.e3 (Alekhine variation)14829.7%54.7%
C11French defence14740.8%54.4%
C19French, Winawer, advance, Smyslov variation14727.2%61.2%
C61Ruy Lopez, Bird's defence14737.4%59.5%
C77Ruy Lopez, four knights (Tarrasch) variation14745.6%56.1%
E76King's Indian, Four pawns attack, dynamic line14635.6%53.4%
A24English, Bremen system with ...g614441.7%48.6%
B04Alekhine's defence, modern, Schmid variation14438.2%61.5%
A52Budapest, Adler variation14347.6%55.2%
C21Centre game14343.4%58.0%
C75Ruy Lopez, modern Steinitz defence14241.5%55.3%
D44QGD semi-Slav, 5.Bg5 dc14243.7%49.3%
A50Queen's Indian accelerated14146.1%57.1%
A58Benko gambit, fianchetto variation14143.3%62.1%
B02Alekhine's defence, Scandinavian variation14136.9%56.7%
C23Bishop's opening, Philidor counter-attack14157.4%49.3%
D26QGA, classical variation, 6.O-O14146.1%57.1%
C48Four knights, Rubinstein counter-gambit, exchange variation14064.3%52.9%
B01Scandinavian gambit13941.7%52.5%
B12Caro-Kann, 3.Nd213942.4%58.6%
C42Petrov, Paulsen attack13939.6%51.4%
B80Sicilian, Scheveningen, English variation13732.1%51.8%
C56Two knights defence13743.8%48.9%
C98Ruy Lopez, closed, Chigorin, 12...Nc613631.6%61.4%
A20English, Nimzovich, Flohr variation13538.5%42.2%
B06Robatsch defence, three pawns attack13531.1%63.7%
B63Sicilian, Richter-Rauzer, Rauzer attack13336.8%57.5%
C73Ruy Lopez, modern Steinitz defence, Richter variation13351.9%53.8%
A86Dutch, Leningrad variation13234.8%56.1%
D94Gruenfeld, Opovcensky variation13240.9%54.5%
E02Catalan, open, 5.Qa413246.2%58.7%
C42Petrov, classical attack, close variation13146.6%59.2%
C81Ruy Lopez, open, Howell attack13151.9%50.4%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)13150.4%55.7%
A38English, symmetrical, main line with d313048.5%52.7%
B60Sicilian, Richter-Rauzer, Larsen variation13030.8%60.8%
B85Sicilian, Scheveningen, classical13040.8%51.9%
D10QGD Slav, Winawer counter-gambit13031.5%53.5%
C53Giuoco Piano, Bird's attack12931.8%49.2%
C12French, MacCutcheon, Janowski variation12836.7%57.4%
D15QGD Slav, Suechting variation12832.8%57.8%
D41QGD, Semi-Tarrasch with e312846.9%52.3%
D55QGD, Neo-orthodox variation, 7.Bh412744.9%57.1%
B27Sicilian, Katalimov variation12646.0%61.9%
D31QGD, semi-Slav, Abrahams variation12535.2%44.0%
D52QGD12540.0%58.4%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation12337.4%64.2%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d512349.6%47.6%
A12English, London defensive system12241.8%51.2%
B98Sicilian, Najdorf, 7...Be712233.6%54.5%
E40Nimzo-Indian, 4.e312227.9%57.4%
A04Reti, Pirc-Lisitsin gambit12129.8%49.6%
B13Caro-Kann, exchange, Rubinstein variation12135.5%52.5%
A21English, Troeger defence12030.0%53.3%
A28English, Nenarokov variation12040.0%51.7%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg712047.5%56.3%
A00Mieses opening11930.3%52.9%
B59Sicilian, Boleslavsky variation, 7.Nb311947.1%52.1%
C92Ruy Lopez, closed, Kholmov variation11930.3%66.4%
A77Benoni, classical, 9...Re8, 10.Nd211825.4%67.8%
D15QGD Slav, Tolush-Geller gambit11828.8%40.7%
D55QGD, 6.Nf311833.9%57.6%
D97Gruenfeld, Russian, Byrne (Simagin) variation11838.1%58.9%
A25English, closed system (without ...d6)11728.2%55.1%
A59Benko gambit, main line11641.4%66.4%
C34KGA, Fischer defence11630.2%44.4%
C46Three knights game11637.1%53.9%
A83Dutch, Staunton gambit, Staunton's line11536.5%50.4%
A00Benko's opening, reversed Alekhine11342.5%48.7%
B01Scandinavian defence, Lasker variation11332.7%65.0%
B23Sicilian, closed, Korchnoi variation11354.9%51.3%
C42Petrov, classical attack, Mason variation11343.4%58.8%
E10Blumenfeld counter-gambit accepted11339.8%54.4%
E25Nimzo-Indian, Saemisch variation11341.6%51.8%
C11French, Steinitz, Gledhill attack11233.0%54.9%
D06QGD, Marshall defence11242.9%58.9%
E15Queen's Indian, Rubinstein variation11235.7%58.0%
A41Robatsch defence, Rossolimo variation11136.0%50.5%
C07French, Tarrasch, Eliskases variation11146.8%53.2%
D48QGD semi-Slav, Meran, old main line11135.1%52.7%
E46Nimzo-Indian, Simagin variation11139.6%49.5%
D59QGD, Tartakower variation11044.5%45.9%
C21Danish gambit10941.3%47.2%
D31QGD, Janowski variation10945.0%50.0%
A06Santasiere's folly10840.7%41.7%
A53Old Indian, Janowski variation10831.5%56.5%
C12French, MacCutcheon variation10842.6%50.0%
A07Reti, King's Indian attack, Pachman system10737.4%53.3%
A60Benoni defence10725.2%64.0%
B03Alekhine's defence, four pawns attack, 7.Be310735.5%67.3%
B03Alekhine's defence, four pawns attack, fianchetto variation10731.8%57.9%
C74Ruy Lopez, Siesta, Kopayev variation10730.8%53.7%
D11QGD Slav, Breyer variation10741.1%58.9%
A13English, Wimpey system10642.5%51.4%
A36English, symmetrical variation10636.8%56.1%
C47Four knights, Belgrade gambit10647.2%53.8%
A64Benoni, fianchetto, 11...Re810540.0%41.9%
C44Ponziani counter-gambit10542.9%57.6%
C71Ruy Lopez, modern Steinitz defence10541.9%55.2%
A00Polish, Outflank variation10444.2%48.1%
A42Modern defence, Averbakh system, Kotov variation10324.3%64.6%
B77Sicilian, dragon, Yugoslav attack, 9.Bc410333.0%49.5%
E70King's Indian, accelerated Averbakh system10334.0%55.8%
E77King's Indian, Four pawns attack10332.0%57.8%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation10242.2%55.4%
A82Dutch, Staunton gambit10135.6%34.7%
E20Nimzo-Indian defence10150.5%51.0%
B73Sicilian, dragon, classical, Richter variation10043.0%57.5%
E22Nimzo-Indian, Spielmann variation10043.0%50.5%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be79931.3%58.1%
C66Ruy Lopez, Berlin defence, hedgehog variation9952.5%57.6%
B82Sicilian, Scheveningen, Tal variation9835.7%59.7%
D22QGA, Haberditz variation9857.1%52.0%
D86Gruenfeld, exchange, Simagin's improved variation9739.2%51.5%
E32Nimzo-Indian, classical, Adorjan gambit9744.3%51.0%
C02French, advance, Milner-Barry gambit9634.4%46.4%
D06QGD, Grau (Sahovic) defence9534.7%62.6%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)9545.3%56.3%
B05Alekhine's defence, modern, Flohr variation9436.2%63.8%
C02French, advance, Nimzovich system9431.9%44.7%
A18English, Mikenas-Carls variation9245.7%57.6%
C00St. George defence9246.7%64.7%
C27Vienna game9245.7%54.3%
E05Catalan, open, classical line9252.2%55.4%
B96Sicilian, Najdorf, Polugayevsky variation9137.4%53.8%
E28Nimzo-Indian, Saemisch variation9125.3%52.2%
A43Old Benoni, Franco-Benoni defence9036.7%58.3%
D56QGD, Lasker defence, Teichmann variation9051.1%50.0%
A06Reti, old Indian attack8924.7%48.3%
D60QGD, Orthodox defence8932.6%55.6%
E82King's Indian, Saemisch, double fianchetto variation8931.5%58.4%
A16English, Anglo-Gruenfeld defense, Korchnoi variation8836.4%58.0%
A76Benoni, classical, 9...Re88837.5%65.3%
B00KP, Nimzovich defence, Bogolyubov variation8830.7%58.5%
C33KGA, bishop's gambit, Jaenisch variation8843.2%48.9%
C82Ruy Lopez, open, Italian variation8847.7%65.9%
E64King's Indian, fianchetto, Yugoslav system8836.4%59.1%
A71Benoni, classical, 8.Bg58728.7%54.6%
C44Ponziani, Leonhardt variation8736.8%46.0%
D12QGD Slav, exchange variation8737.9%48.9%
D25QGA, 4.e38736.8%54.0%
D25QGA, Smyslov variation8752.9%58.6%
E53Nimzo-Indian, 4.e3, Keres variation8737.9%45.4%
A44Semi-Benoni (`blockade variation')8631.4%62.2%
B02Alekhine's defence, Maroczy variation8636.0%57.6%
B13Caro-Kann, Panov-Botvinnik, normal variation8650.0%56.4%
B83Sicilian, modern Scheveningen, main line with Nb38636.0%57.6%
C29Vienna gambit, Breyer variation8630.2%55.8%
D63QGD, Orthodox defence, Swiss (Henneberger) variation8644.2%62.8%
A93Dutch, stonewall, Botwinnik variation8529.4%59.4%
B09Pirc, Austrian attack, 6.e58543.5%57.1%
C66Ruy Lopez, Berlin defence, 4.O-O, d68550.6%54.7%
A03Bird's opening, Lasker variation8428.6%42.9%
A91Dutch defence8433.3%52.4%
C14French, classical, Alapin variation8446.4%54.2%
A28English, four knights, Stean variation8342.2%59.6%
C70Ruy Lopez, Caro variation8341.0%59.0%
C70Ruy Lopez, Classical defence deferred8345.8%61.4%
D08QGD, Albin counter-gambit8341.0%63.9%
A54Old Indian, Ukrainian variation8251.2%56.1%
C68Ruy Lopez, exchange, Keres variation8253.7%51.2%
A86Dutch with c4 & g38138.3%66.0%
B72Sicilian, dragon, 6.Be38134.6%54.3%
B74Sicilian, dragon, classical, Reti-Tartakower variation8144.4%55.6%
E62King's Indian, fianchetto, Simagin variation8135.8%63.6%
E92King's Indian, Petrosian system8129.6%50.6%
A12English, Caro-Kann defensive system, Bogolyubov variation8048.8%53.1%
A99Dutch, Ilyin-Genevsky variation with b38035.0%65.0%
B72Sicilian, dragon, classical attack8038.8%51.9%
D20QGA, Linares variation8035.0%61.3%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
B03Alekhine's defence7931.6%63.9%
D07QGD, Chigorin defence, Janowski variation7932.9%63.3%
D35QGD, 3...Nf67941.8%50.0%
E08Catalan, closed, 7.Qc27939.2%60.1%
E61King's Indian, Smyslov system7938.0%53.2%
E90King's Indian, Larsen variation7940.5%60.8%
B42Sicilian, Kan, Gipslis variation7839.7%63.5%
D09QGD, Albin counter-gambit, 5.g37841.0%61.5%
C44King's pawn game7735.1%51.3%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc37745.5%60.4%
D87Gruenfeld, exchange, Seville variation7754.5%62.3%
E81King's Indian, Saemisch, Byrne variation7740.3%53.9%
A69Benoni, four pawns attack, main line7639.5%46.1%
C40Latvian counter-gambit7631.6%61.8%
C46Four knights, Gunsberg variation7648.7%49.3%
D15QGD Slav accepted7642.1%48.7%
D63QGD, Orthodox defence7644.7%57.9%
E25Nimzo-Indian, Saemisch, Romanovsky variation7642.1%48.7%
E93King's Indian, Petrosian system, main line7634.2%50.0%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf67532.0%61.3%
C39KGA, Kieseritsky, Kolisch defence7542.7%44.0%
C67Ruy Lopez, open Berlin defence, l'Hermet variation7556.0%49.3%
C68Ruy Lopez, exchange variation7541.3%51.3%
D94Gruenfeld, Makogonov variation7548.0%46.7%
E67King's Indian, fianchetto with ...Nd77537.3%53.3%
B18Caro-Kann, classical, Flohr variation7458.1%48.0%
C30King's gambit7338.4%58.9%
E29Nimzo-Indian, Saemisch, main line7339.7%55.5%
C25Vienna, Paulsen variation7233.3%56.9%
D27QGA, classical, Geller variation7255.6%52.8%
A68Benoni, four pawns attack7135.2%55.6%
A63Benoni, fianchetto, 9...Nbd77034.3%64.3%
D44QGD semi-Slav, Botvinnik system (anti-Meran)7038.6%53.6%
D89Gruenfeld, Spassky variation, main line, 13.Bd37038.6%49.3%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc47054.3%40.0%
A83Dutch, Staunton gambit, Chigorin variation6933.3%52.9%
C51Evans gambit, Cordel variation6952.2%44.9%
A12English, Capablanca's variation6835.3%47.1%
A57Benko gambit, Zaitsev system6839.7%46.3%
C13French, Albin-Alekhine-Chatard attack, Breyer variation6839.7%65.4%
C52Evans gambit, Tartakower attack6844.1%44.1%
A47Queen's Indian, Marienbad system6735.8%53.7%
C40Gunderam defence6728.4%70.9%
C90Ruy Lopez, closed, Suetin variation6737.3%56.0%
D50QGD, 4.Bg56743.3%53.0%
D68QGD, Orthodox defence, classical variation6746.3%57.5%
C67Ruy Lopez, open Berlin defence, 5...Be76633.3%53.0%
A97Dutch, Ilyin-Genevsky, Winter variation6541.5%63.8%
C73Ruy Lopez, modern Steinitz defence, Alapin variation6538.5%54.6%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation6536.9%56.9%
D51QGD, 4.Bg5 Nbd76540.0%53.8%
D60QGD, Orthodox defence, Botvinnik variation6532.3%50.0%
A20English, Nimzovich variation6439.1%57.0%
A41Modern defence6434.4%56.3%
C00French, Pelikan variation6435.9%52.3%
C49Four knights6454.7%49.2%
C86Ruy Lopez, Worrall attack, solid line6432.8%46.1%
D16QGD Slav, Smyslov variation6432.8%58.6%
D95Gruenfeld, Botvinnik variation6442.2%50.8%
E33Nimzo-Indian, classical, 4...Nc66451.6%55.5%
A13English, Kurajica defence6330.2%59.5%
B84Sicilian, Scheveningen, classical, Nd7 system6334.9%49.2%
C42Petrov, Italian variation6327.0%50.0%
C65Ruy Lopez, Berlin defence, Nyholm attack6355.6%54.8%
D25QGA, Flohr variation6330.2%65.9%
D51QGD, 5...c66349.2%53.2%
E07Catalan, closed, Botvinnik variation6344.4%42.9%
E10Blumenfeld counter-gambit, Spielmann variation6338.1%57.1%
E40Nimzo-Indian, 4.e3, Taimanov variation6334.9%63.5%
D28QGA, classical, 7.Qe26251.6%61.3%
A36English, symmetrical, Botvinnik system reversed6136.1%55.7%
B20Sicilian, wing gambit, Marshall variation6129.5%55.7%
B62Sicilian, Richter-Rauzer, Keres variation6131.1%51.6%
C42Petrov, Cochrane gambit6118.0%32.0%
D33QGD, Tarrasch, Prague variation6131.1%53.3%
A92Dutch, stonewall variation6048.3%57.5%
C12French, MacCutcheon, Chigorin variation6038.3%45.8%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)6041.7%45.8%
D49QGD semi-Slav, Meran, Rabinovich variation6025.0%44.2%
C48Four knights, Rubinstein counter-gambit, Henneberger variation5940.7%50.8%
C49Four knights, double Ruy Lopez5942.4%63.6%
C57Two knights defence, Fegatello attack5927.1%54.2%
E17Queen's Indian, Euwe variation5952.5%55.1%
E46Nimzo-Indian, 4.e3 O-O5930.5%57.6%
C64Ruy Lopez, Cordel gambit5841.4%58.6%
C66Ruy Lopez, closed Berlin defence, Wolf variation5856.9%57.8%
E62King's Indian, fianchetto variation5836.2%49.1%
B03Alekhine's defence, four pawns attack, Trifunovic variation5735.1%68.4%
B20Sicilian, wing gambit5750.9%41.2%
B22Sicilian, 2.c3, Heidenfeld variation5726.3%44.7%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation5742.1%70.2%
C80Ruy Lopez, open (Tarrasch) defence5745.6%59.6%
D00Queen's pawn, stonewall attack5736.8%43.0%
E07Catalan, closed, 6...Nbd75738.6%50.9%
A17English, Queens Indian, Romanishin variation5628.6%58.9%
A52Budapest, Alekhine, Abonyi variation5626.8%61.6%
C03French, Tarrasch, Guimard variation5625.0%66.1%
C20KP, Indian opening5633.9%43.8%
C39KGA, Kieseritsky, Berlin defence5639.3%41.1%
C82Ruy Lopez, open, Motzko attack5644.6%58.0%
C45Scotch, Romanishin variation5545.5%59.1%
C66Ruy Lopez, closed Berlin defence, Showalter variation5547.3%56.4%
D32QGD, Tarrasch, von Hennig-Schara gambit5541.8%60.9%
D47QGD semi-Slav, 7.Bc45536.4%52.7%
E10Dzindzikhashvili defence5549.1%59.1%
B01Scandinavian, Icelandic gambit5448.1%55.6%
C17French, Winawer, advance variation5442.6%58.3%
E26Nimzo-Indian, Saemisch variation5446.3%54.6%
E72King's Indian with e4 & g35435.2%56.5%
E83King's Indian, Saemisch, 6...Nc65427.8%47.2%
C43Petrov, modern attack, Trifunovic variation5345.3%49.1%
C49Four knights, Nimzovich (Paulsen) variation5358.5%57.5%
E30Nimzo-Indian, Leningrad, ...b5 gambit5328.3%46.2%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack5322.6%66.0%
A28English, Bradley Beach variation5221.2%37.5%
A79Benoni, classical, 11.f35228.8%58.7%
C17French, Winawer, advance, Russian variation5238.5%53.8%
C50Giuoco Piano, four knights variation5236.5%51.0%
C67Ruy Lopez, Berlin defence, Cordel variation5236.5%60.6%
A00Grob, Fritz gambit5143.1%27.5%
A05Reti, King's Indian attack, Reti-Smyslov variation5139.2%56.9%
B56Sicilian, Venice attack5137.3%63.7%
C35KGA, Cunningham defence5139.2%47.1%
C49Four knights, symmetrical, Maroczy system5147.1%51.0%
C55Two knights defence5141.2%50.0%
A40Polish defence5046.0%51.0%
C74Ruy Lopez, modern Steinitz defence5038.0%57.0%
E85King's Indian, Saemisch, orthodox variation5034.0%51.0%
C58Two knights defence, Bogolyubov variation4932.7%49.0%
A73Benoni, classical, 9.O-O4827.1%57.3%
B06Robatsch defence, Gurgenidze variation4837.5%58.3%
B12Caro-Kann, advance, Short variation4833.3%52.1%
C12French, MacCutcheon, Dr. Olland (Dutch) variation4825.0%66.7%
C23Bishop's opening, Classical variation4839.6%53.1%
C44Ponziani, Fraser defence4837.5%66.7%
C95Ruy Lopez, closed, Breyer, Gligoric variation4845.8%54.2%
A75Benoni, classical with ...a6 and 10...Bg44725.5%72.3%
B10Caro-Kann, Goldman (Spielmann) variation4742.6%48.9%
B80Sicilian, Scheveningen, Vitolins variation4746.8%51.1%
C44Scotch gambit, Benima defence4734.0%55.3%
D67QGD, Orthodox defence, Bd3 line, 11.O-O4736.2%64.9%
A72Benoni, classical without 9.O-O4641.3%62.0%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation4634.8%52.2%
C57Two knights defence, Wilkes Barre (Traxler) variation4637.0%53.3%
E75King's Indian, Averbakh, main line4626.1%58.7%
A81Dutch defence, Blackburne variation4528.9%52.2%
B58Sicilian, Boleslavsky, Louma variation4535.6%57.8%
C80Ruy Lopez, open, 6.d44537.8%45.6%
D57QGD, Lasker defence, main line4555.6%52.2%
D84Gruenfeld, Gruenfeld gambit accepted4551.1%54.4%
E27Nimzo-Indian, Saemisch variation4546.7%41.1%
A92Dutch defence4452.3%58.0%
B04Alekhine's defence, modern, Keres variation4434.1%71.6%
C15French, Winawer, Alekhine gambit, Kan variation4445.5%45.5%
C30KGD, classical variation4427.3%59.1%
C41Philidor, Nimzovich, Larobok variation4447.7%35.2%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)4456.8%58.0%
E24Nimzo-Indian, Saemisch, Botvinnik variation4436.4%43.2%
E60King's Indian, Anti-Gruenfeld4434.1%60.2%
B62Sicilian, Richter-Rauzer, 6...e64337.2%58.1%
C05French, Tarrasch, Botvinnik variation4330.2%64.0%
C26Vienna, Falkbeer variation4344.2%54.7%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence4351.2%39.5%
C83Ruy Lopez, open, 9...Be7, 10.Re14334.9%54.7%
B53Sicilian, Chekhover, Zaitsev variation4221.4%58.3%
B98Sicilian, Najdorf, Browne variation4228.6%61.9%
C11French, Swiss variation4247.6%57.1%
C44Scotch gambit4233.3%59.5%
C49Four knights, symmetrical, Pillsbury variation4259.5%48.8%
C52Evans gambit, compromised defence4221.4%72.6%
C78Ruy Lopez, ...b5 & ...d64233.3%52.4%
C94Ruy Lopez, closed, Breyer defence4233.3%57.1%
D33QGD, Tarrasch, Folkestone (Swedish) variation4254.8%58.3%
A90Dutch-Indian, Alekhine variation4136.6%54.9%
A94Dutch, stonewall with Ba34151.2%57.3%
B72Sicilian, dragon, classical, Amsterdam variation4124.4%48.8%
C24Bishop's opening, Urusov gambit4126.8%37.8%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd74161.0%50.0%
A09Reti accepted, Keres variation4032.5%68.8%
C27Boden-Kieseritsky gambit4032.5%31.3%
C39KGA, Kieseritsky, Berlin defence, 6.Bc44030.0%35.0%
C45Scotch, Steinitz variation4035.0%55.0%
C77Ruy Lopez, Morphy defence, Duras variation4040.0%55.0%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
D29QGA, classical, Smyslov variation4055.0%45.0%
C88Ruy Lopez, closed, Balla variation3941.0%48.7%
E96King's Indian, orthodox, 7...Nbd7, main line3941.0%59.0%
A12English, Torre defensive system3842.1%57.9%
B00St. George (Baker) defence3839.5%59.2%
C33KGA, bishop's gambit3836.8%47.4%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc63839.5%51.3%
A59Benko gambit3743.2%62.2%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)3729.7%50.0%
C67Ruy Lopez, Berlin defence, Minckwitz variation3748.6%62.2%
C90Ruy Lopez, closed, Lutikov variation3748.6%56.8%
A21English, Smyslov defence3630.6%59.7%
A25English, closed, Hort variation3636.1%54.2%
A56Czech Benoni, King's Indian system3611.1%66.7%
A78Benoni, classical with ...Re8 and ...Na63638.9%58.3%
B40Sicilian, Pin, Koch variation3625.0%79.2%
B55Sicilian, Prins variation, Venice attack3641.7%51.4%
B71Sicilian, dragon, Levenfish variation3630.6%56.9%
C51Evans gambit, 5...Be73636.1%56.9%
C53Giuoco Piano, centre-holding variation3636.1%59.7%
C54Giuoco Piano, Moeller (Therkatz) attack3644.4%47.2%
D52QGD, Cambridge Springs defence3641.7%45.8%
D52QGD, Cambridge Springs defence, 7.cd3633.3%50.0%
D52QGD, Cambridge Springs defence, Capablanca variation3636.1%59.7%
A51Budapest, Fajarowicz variation3525.7%61.4%
A92Dutch defence, Alekhine variation3540.0%62.9%
B27Sicilian, Quinteros variation3537.1%64.3%
C36KGA, Abbazia defence (classical defence, modern defence[!])3537.1%67.1%
C45Scotch, Meitner variation3554.3%55.7%
C70Ruy Lopez3545.7%51.4%
D46QGD semi-Slav, 6.Bd33540.0%62.9%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation3557.1%54.3%
E12Queen's Indian, 4.Nc3, Botvinnik variation3520.0%47.1%
E60Queen's pawn, Mengarini attack3531.4%61.4%
A12English, New York (London) defensive system3452.9%44.1%
A98Dutch, Ilyin-Genevsky variation with Qc23429.4%52.9%
C41Philidor, Nimzovich variation3441.2%61.8%
D06QGD, symmetrical (Austrian) defence3450.0%57.4%
D54QGD, Anti-neo-orthodox variation3441.2%47.1%
A40Beefeater defence3321.2%68.2%
C01French, exchange, Svenonius variation3339.4%56.1%
C60Ruy Lopez, Cozio defence, Paulsen variation3327.3%68.2%
D23Queen's gambit accepted3339.4%50.0%
D30QGD, Capablanca variation3333.3%56.1%
D53QGD, 4.Bg5 Be7, 5.e3 O-O3348.5%51.5%
A45Paleface attack3234.4%45.3%
D26QGA, classical, Steinitz variation3246.9%64.1%
D60QGD, Orthodox defence, Rauzer variation3240.6%60.9%
A43Old Benoni, Mujannah formation3138.7%67.7%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3122.6%56.5%
C43Petrov, modern (Steinitz) attack3148.4%56.5%
C47Four knights, Scotch, Krause variation3135.5%62.9%
E73King's Indian, 5.Be23141.9%59.7%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit3056.7%45.0%
C15French, Winawer, fingerslip variation3043.3%35.0%
C41Philidor, Larsen variation3023.3%65.0%
D00Blackmar-Diemer gambit3020.0%40.0%
D70Neo-Gruenfeld (Kemeri) defence3040.0%53.3%
E90King's Indian, Zinnowitz variation3050.0%55.0%
A00Clemenz (Mead's, Basman's or de Klerk's) opening2931.0%43.1%
A02Bird, From gambit, Lasker variation2955.2%58.6%
C30KGD, classical, 4.c32931.0%60.3%
C34KGA, Becker defence2941.4%48.3%
C00French, Wing gambit2850.0%57.1%
C13French, classical2842.9%42.9%
C21Danish gambit, Soerensen defence2860.7%55.4%
C41Philidor, Nimzovich, Rellstab variation2846.4%69.6%
C46Three knights, Steinitz variation2839.3%55.4%
C67Ruy Lopez, Berlin defence, Winawer attack2832.1%69.6%
D86Gruenfeld, exchange, Simagin's lesser variation2832.1%55.4%
E17Queen's Indian, 5.Bg2 Be72828.6%39.3%
E89King's Indian, Saemisch, orthodox main line2832.1%62.5%
B07Pirc, bayonet (Mariotti) attack2755.6%57.4%
B12Caro-Kann, Edinburgh variation2740.7%57.4%
C14French, classical, Rubinstein variation2737.0%55.6%
C25Vienna gambit2725.9%53.7%
C60Ruy Lopez (Spanish opening)2725.9%64.8%
C88Ruy Lopez, closed, 8.c32737.0%63.0%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation2630.8%50.0%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)2646.2%53.8%
C30KGD, 2...Nf62626.9%59.6%
C65Ruy Lopez, Berlin defence, Kaufmann variation2642.3%55.8%
D00Blackmar-Diemer, Euwe defence2623.1%42.3%
D34QGD, Tarrasch, Reti variation2661.5%61.5%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
E73King's Indian, Semi-Averbakh system2642.3%55.8%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2552.0%58.0%
B85Sicilian, Scheveningen, classical, Maroczy system2536.0%54.0%
C31KGD, Falkbeer counter-gambit2544.0%54.0%
C41Philidor, Hanham variation2540.0%68.0%
C55Two knights defence, Perreux variation2548.0%52.0%
D97Gruenfeld, Russian variation with e42532.0%60.0%
E92King's Indian, classical variation2536.0%38.0%
B72Sicilian, dragon, classical, Grigoriev variation2445.8%52.1%
C33KGA, bishop's gambit, Bledow variation2412.5%31.3%
C34KGA, Bonsch-Osmolovsky variation2437.5%56.3%
C42Petrov, Damiano variation2441.7%50.0%
C44Inverted Hanham2433.3%45.8%
C45Scotch, Horwitz attack2433.3%66.7%
C51Evans gambit declined, Showalter variation2441.7%50.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation2450.0%62.5%
C70Ruy Lopez, fianchetto defence deferred2466.7%58.3%
C86Ruy Lopez, Worrall attack2454.2%56.3%
D40QGD, Semi-Tarrasch defence, Pillsbury variation2437.5%56.3%
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%
D44QGD semi-Slav, anti-Meran, Szabo variation2420.8%35.4%
E15Queen's Indian, Buerger variation2437.5%60.4%
E29Nimzo-Indian, Saemisch, Capablanca variation2437.5%43.8%
A03Bird's opening, Williams gambit2334.8%65.2%
A43Old Benoni, Schmid's system2317.4%56.5%
B15Caro-Kann, Alekhine gambit2339.1%50.0%
B32Sicilian, Nimzovich variation2339.1%54.3%
B74Sicilian, dragon, classical, Alekhine variation2347.8%67.4%
C38King's knight's gambit2339.1%28.3%
A97Dutch, Ilyin-Genevsky variation2218.2%54.5%
C13French, classical, Tartakower variation2236.4%45.5%
C20KP, Patzer opening2227.3%31.8%
C20King's pawn game2236.4%54.5%
C40Latvian, Polerio variation2227.3%40.9%
C49Four knights, symmetrical, Capablanca variation2259.1%61.4%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2245.5%45.5%
C96Ruy Lopez, closed (8...Na5)2254.5%63.6%
D30QGD Slav, Semmering variation2231.8%47.7%
A00Novosibirsk opening2133.3%50.0%
B24Sicilian, closed, Smyslov variation2133.3%54.8%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation2152.4%54.8%
B50Sicilian, wing gambit deferred2123.8%35.7%
C12French, MacCutcheon, Grigoriev variation2138.1%57.1%
C25Vienna game, Max Lange defence2142.9%50.0%
C37KGA, Blachly gambit2138.1%33.3%
D12QGD Slav, Amsterdam variation2152.4%45.2%
D21QGA, Alekhine defense, Borisenko-Furman variation2128.6%52.4%
E10Doery defence2142.9%54.8%
E26Nimzo-Indian, Saemisch, O'Kelly variation2128.6%57.1%
E51Nimzo-Indian, 4.e3, Ragozin variation2138.1%66.7%
A18English, Mikenas-Carls, Kevitz variation2025.0%47.5%
A25English, closed, Taimanov variation2010.0%65.0%
A40Queen's pawn, Charlick (Englund) gambit2045.0%62.5%
A52Budapest defence2050.0%55.0%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2045.0%47.5%
C20KP, Mengarini's opening2040.0%25.0%
C41Philidor, Hanham, Steiner variation2035.0%67.5%
C44Inverted Hungarian2045.0%57.5%
C51Evans gambit, Morphy attack2040.0%55.0%
C53Giuoco Piano, close variation2030.0%75.0%
C74Ruy Lopez, modern Steinitz defence, siesta variation2045.0%47.5%
C95Ruy Lopez, closed, Breyer, Simagin variation2035.0%57.5%
D01Richter-Veresov attack, Veresov variation2045.0%47.5%
D48QGD semi-Slav, Meran205.0%37.5%
A74Benoni, classical, 9...a6, 10.a41942.1%73.7%
B41Sicilian, Kan, Maroczy bind - Bronstein variation1936.8%28.9%
B44Sicilian, Szen variation, Dely-Kasparov gambit1957.9%60.5%
C51Evans gambit, normal variation1921.1%47.4%
C52Evans gambit, Richardson attack1936.8%28.9%
C55Two knights, Max Lange attack, Schlechter variation1942.1%52.6%
C57Two knights defence, Lolli attack1936.8%55.3%
C70Ruy Lopez, Schliemann defence deferred1926.3%71.1%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
D52QGD, Cambridge Springs defence, Argentine variation1931.6%42.1%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation1968.4%65.8%
A00Amar (Paris) opening1844.4%33.3%
A04Reti, Lisitsin gambit deferred1816.7%75.0%
B07Pirc, Holmov system1844.4%61.1%
B72Sicilian, dragon, classical, Nottingham variation1844.4%55.6%
C35KGA, Cunningham, Euwe defence1827.8%58.3%
C51Evans gambit declined1816.7%58.3%
C51Evans gambit, Paulsen variation1827.8%69.4%
C53Giuoco Piano, Anderssen variation1855.6%38.9%
C57Two knights defence, Ulvestad variation1866.7%44.4%
C88Ruy Lopez, closed, 7...d6, 8.d41833.3%16.7%
D05Queen's pawn game, Zukertort variation1861.1%52.8%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation1844.4%33.3%
D90Gruenfeld, Schlechter variation1833.3%38.9%
D94Gruenfeld with e3 Bd31844.4%55.6%
D94Gruenfeld, Flohr defence1850.0%58.3%
A66Benoni, Mikenas variation1723.5%47.1%
A80Dutch, Manhattan (Alapin, Ulvestad) variation1741.2%61.8%
B34Sicilian, accelerated fianchetto, exchange variation1747.1%70.6%
B45Sicilian, Taimanov, American attack1741.2%44.1%
C06French, Tarrasch, Leningrad variation1717.6%85.3%
C10French, Frere (Becker) variation1741.2%61.8%
C12French, MacCutcheon, Bernstein variation1729.4%61.8%
C20Alapin's opening1729.4%67.6%
C33KGA, bishop's gambit, Morphy variation1729.4%61.8%
C33KGA, bishop's gambit, Steinitz defence1741.2%38.2%
C34KGA, Schallop defence1729.4%73.5%
C39KGA, Kieseritsky, Rice gambit1723.5%29.4%
C41Philidor, Hanham, Schlechter variation1723.5%76.5%
C58Two knights defence, Colman variation1723.5%35.3%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
D01Richter-Veresov attack, Richter variation1723.5%52.9%
D32QGD, Tarrasch defence, 4.cd ed1735.3%58.8%
D83Gruenfeld, Gruenfeld gambit1729.4%67.6%
E99King's Indian, orthodox, Aronin-Taimanov, main line1729.4%61.8%
A00Battambang opening1631.3%46.9%
A06Tennison (Lemberg, Zukertort) gambit1656.3%40.6%
A12English, Bled variation1643.8%59.4%
A44Old Benoni defence1643.8%65.6%
B00Reversed Grob (Borg/Basman defence/macho Grob)1631.3%84.4%
B27Sicilian defence1631.3%53.1%
B62Sicilian, Richter-Rauzer, Podvebrady variation1656.3%34.4%
C44Ponziani, Romanishin variation1631.3%46.9%
C45Scotch, Blackburne attack1637.5%50.0%
C45Scotch, Blumenfeld attack1637.5%31.3%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C52Evans gambit, compromised defence, Paulsen variation1625.0%62.5%
C55Two knights, Max Lange attack1631.3%59.4%
C82Ruy Lopez, open, Berlin variation1637.5%68.8%
C92Ruy Lopez, closed, Keres (9...a5) variation1650.0%43.8%
D15QGD Slav, Slav gambit1625.0%56.3%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
C31KGD, Nimzovich counter-gambit1553.3%73.3%
C41Philidor, Nimzovich (Jaenisch) variation1540.0%53.3%
C45Scotch, Tartakower variation1540.0%46.7%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1546.7%43.3%
C49Four knights, Janowski variation1540.0%60.0%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1533.3%43.3%
D63QGD, Orthodox defence, Pillsbury attack1533.3%70.0%
D69QGD, Orthodox defence, classical, 13.de1553.3%53.3%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc1526.7%73.3%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1573.3%63.3%
E23Nimzo-Indian, Spielmann, Karlsbad variation1540.0%40.0%
A61Benoni, fianchetto variation1414.3%78.6%
B02Alekhine's defence, Spielmann variation1435.7%46.4%
B09Pirc, Austrian attack, Ljubojevic variation1442.9%50.0%
B13Caro-Kann, Panov-Botvinnik, Herzog defence1435.7%46.4%
B21Sicilian, Andreaschek gambit1442.9%57.1%
C12French, MacCutcheon, advance variation1428.6%21.4%
C30KGD, Norwalde variation147.1%82.1%
C33KGA, Keres (Mason-Steinitz) gambit1450.0%32.1%
C33KGA, bishop's gambit, Ruy Lopez defence1442.9%50.0%
C44Scotch, Lolli variation1435.7%53.6%
C46Three knights, Schlechter variation1428.6%42.9%
C48Four knights, Ranken variation1442.9%64.3%
C65Ruy Lopez, Berlin defence, Mortimer variation1464.3%32.1%
C66Ruy Lopez, closed Berlin defence, Bernstein variation1435.7%53.6%
C67Ruy Lopez, open Berlin defence, Showalter variation1428.6%42.9%
C68Ruy Lopez, exchange, Alekhine variation1442.9%42.9%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation1421.4%46.4%
D95Gruenfeld with e3 & Qb31457.1%64.3%
E03Catalan, open, Alekhine variation1421.4%39.3%
E77King's Indian, Four pawns attack, 6.Be21450.0%53.6%
A01Nimzovich-Larsen attack, Dutch variation1330.8%46.2%
A52Budapest, Alekhine variation1323.1%65.4%
B40Sicilian, Pin variation (Sicilian counter-attack)1346.2%69.2%
B88Sicilian, Sozin, Fischer variation1346.2%53.8%
C11French, Henneberger variation1338.5%50.0%
C27Vienna, Alekhine variation1338.5%50.0%
C37KGA, King's knight's gambit1369.2%65.4%
C40QP counter-gambit (elephant gambit)1353.8%65.4%
C47Four knights, Scotch variation1315.4%61.5%
C65Ruy Lopez, Berlin defence, Duras variation1338.5%50.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system1338.5%50.0%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
A47Queen's Indian, Marienbad system, Berg variation1250.0%58.3%
B03Alekhine's defence, four pawns attack, 6...Nc61225.0%45.8%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1233.3%66.7%
C20KP, Lopez opening1233.3%33.3%
C38KGA, Philidor gambit128.3%29.2%
C41Philidor, Hanham, Krause variation1258.3%37.5%
C42Petrov, classical attack, Berger variation1275.0%54.2%
C44Ponziani, Reti variation1233.3%58.3%
C55Two knights, Max Lange attack, Steinitz variation1241.7%62.5%
C58Two knights defence, Yankovich variation1241.7%20.8%
C67Ruy Lopez, Berlin defence, Zukertort variation1250.0%58.3%
C68Ruy Lopez, exchange, Romanovsky variation1233.3%50.0%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1241.7%54.2%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1241.7%54.2%
E11Bogo-Indian defence, Monticelli trap1241.7%45.8%
A22English, Bellon gambit1136.4%63.6%
A45Canard opening1136.4%27.3%
A83Dutch, Staunton gambit, Lasker variation1145.5%40.9%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1118.2%54.5%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
C00French, Reversed Philidor formation1136.4%63.6%
C13French, classical, Anderssen variation1127.3%40.9%
C39KGA, Kieseritsky, Neumann defence1163.6%68.2%
C40Latvian, Fraser defence1118.2%54.5%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1172.7%54.5%
D45QGD semi-Slav, stonewall defence1154.5%54.5%
D51QGD1145.5%68.2%
D65QGD, Orthodox defence, Rubinstein attack, main line1154.5%72.7%
D98Gruenfeld, Russian, Keres variation1136.4%54.5%
D99Gruenfeld defence, Smyslov, Yugoslav variation1127.3%50.0%
E83King's Indian, Saemisch, Ruban variation1136.4%45.5%
A21English, Keres variation1030.0%45.0%
A45Queen's pawn, Bronstein gambit1030.0%55.0%
A92Dutch, stonewall with Nc31030.0%45.0%
B18Caro-Kann, classical, Maroczy attack1020.0%40.0%
B57Sicilian, Magnus Smith trap1050.0%35.0%
B79Sicilian, dragon, Yugoslav attack, 12.h41030.0%65.0%
C26Vienna, Mengarini variation1060.0%40.0%
C40Greco defence1030.0%45.0%
C80Ruy Lopez, open, Friess attack1020.0%60.0%
C80Ruy Lopez, open, Riga variation1050.0%65.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1040.0%60.0%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
D50QGD, Semi-Tarrasch1030.0%45.0%
D51QGD, Capablanca anti-Cambridge Springs variation1070.0%65.0%
D57QGD, Lasker defence, Bernstein variation1070.0%45.0%
E36Nimzo-Indian, classical, Botvinnik variation1030.0%65.0%
A42Modern defence, Averbakh system, Randspringer variation90.0%77.8%
A84Dutch, Staunton gambit deferred955.6%27.8%
B02Alekhine's defence, Steiner variation944.4%55.6%
B05Alekhine's defence, modern, Panov variation911.1%50.0%
B15Caro-Kann, Rasa-Studier gambit911.1%38.9%
B20Sicilian, wing gambit, Carlsbad variation944.4%44.4%
C00French, Steinitz attack911.1%27.8%
C13French, classical, Vistaneckis (Nimzovich) variation90.0%66.7%
C23Bishop's opening, Philidor variation944.4%55.6%
C34King's knight's gambit944.4%33.3%
C37KGA, Muzio gambit944.4%33.3%
C53Giuoco Piano, LaBourdonnais variation911.1%61.1%
C58Two knights defence, Paoli variation933.3%72.2%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
D33QGD, Tarrasch, Wagner variation922.2%66.7%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
E60King's Indian, 3.g3, counterthrust variation911.1%27.8%
A58Benko gambit, Nd2 variation837.5%56.3%
A80Dutch, Korchnoi attack837.5%43.8%
B00Lemming defence837.5%56.3%
B01Scandinavian, Mieses-Kotrvc gambit862.5%43.8%
B03Alekhine's defence, Balogh variation825.0%75.0%
B73Sicilian, dragon, classical, Zollner gambit837.5%43.8%
B74Sicilian, dragon, classical, Spielmann variation837.5%56.3%
C13French, classical, Anderssen-Richter variation825.0%50.0%
C13French, classical, Frankfurt variation837.5%81.3%
C17French, Winawer, advance, Rauzer variation837.5%68.8%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C30KGD, Mafia defence837.5%68.8%
C31KGD, Falkbeer, 4.d3862.5%68.8%
C32KGD, Falkbeer, 5.de837.5%43.8%
C37KGA, Rosentreter gambit875.0%37.5%
C38KGA, Hanstein gambit837.5%43.8%
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%
C41Philidor, Philidor counter-gambit837.5%56.3%
C44Scotch, Goering gambit, Bardeleben variation837.5%43.8%
C48Four knights, Bardeleben variation850.0%50.0%
C55Two knights, Max Lange attack, Marshall variation825.0%62.5%
C57Two knights defence812.5%31.3%
C57Two knights defence, Fegatello attack, Leonhardt variation825.0%50.0%
C83Ruy Lopez, open, Malkin variation862.5%68.8%
D40QGD, Semi-Tarrasch, symmetrical variation850.0%62.5%
D41QGD, Semi-Tarrasch, Kmoch variation875.0%50.0%
D51QGD, Manhattan variation837.5%68.8%
D89Gruenfeld, exchange, Sokolsky variation850.0%37.5%
E72King's Indian, Pomar system812.5%56.3%
A51Budapest defence declined742.9%64.3%
A54Old Indian, Dus-Khotimirsky variation728.6%42.9%
B01Scandinavian, Kiel variation728.6%85.7%
B02Alekhine's defence, Brooklyn defence714.3%35.7%
B02Alekhine's defence, Kmoch variation714.3%21.4%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
B05Alekhine's defence, modern, Alekhine variation742.9%50.0%
C10French, Rubinstein, Capablanca line771.4%50.0%
C14French, classical, Pollock variation714.3%35.7%
C14French, classical, Tarrasch variation70.0%57.1%
C21Danish gambit, Schlechter defence714.3%50.0%
C25Vienna, Pierce gambit757.1%57.1%
C33KGA, bishop's gambit, Bogolyubov variation728.6%28.6%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
C42Petrov, classical attack, Krause variation757.1%28.6%
D08QGD, Albin counter-gambit, Alapin variation757.1%57.1%
D31QGD, Alapin variation742.9%64.3%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation742.9%78.6%
D97Gruenfeld, Russian, Levenfish variation742.9%64.3%
E08Catalan, closed, Spassky gambit728.6%57.1%
A00Durkin's attack650.0%41.7%
A00Grob, spike attack633.3%33.3%
A59Benko gambit, 7.e4633.3%50.0%
A82Dutch, Balogh defence633.3%83.3%
A82Dutch, Staunton gambit, Tartakower variation616.7%41.7%
B03Alekhine's defence, exchange, Karpov variation650.0%58.3%
C14French, classical, Stahlberg variation650.0%58.3%
C20KP, Napoleon's opening633.3%50.0%
C29Vienna gambit, Bardeleben variation650.0%25.0%
C31KGD, Falkbeer, 3...e4683.3%58.3%
C32KGD, Falkbeer, main line, 7...Bf5616.7%91.7%
C33KGA, bishop's gambit, Maurian defence666.7%50.0%
C37KGA, Quaade gambit633.3%16.7%
C41Philidor, Nimzovich, Sokolsky variation666.7%66.7%
C41Philidor, Philidor counter-gambit, Zukertort variation650.0%75.0%
C43Petrov, Urusov gambit633.3%83.3%
C44Konstantinopolsky opening666.7%66.7%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Scotch, Relfsson gambit ('MacLopez')666.7%66.7%
C52Evans gambit, Lasker defence616.7%25.0%
C52Evans gambit, Levenfish variation616.7%25.0%
C52Evans gambit, Waller attack60.0%100.0%
C58Two knights defence, Kieseritsky variation633.3%66.7%
C70Ruy Lopez, Graz variation6100.0%50.0%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation650.0%75.0%
D32QGD, Tarrasch defence, Marshall gambit633.3%50.0%
D55QGD, Neo-orthodox variation633.3%50.0%
E20Nimzo-Indian, Mikenas attack666.7%50.0%
E23Nimzo-Indian, Spielmann, San Remo variation650.0%75.0%
E79King's Indian, Four pawns attack, main line60.0%66.7%
A02Bird, Hobbs gambit560.0%70.0%
A66Benoni, pawn storm variation540.0%60.0%
B12de Bruycker defence520.0%70.0%
C00Lengfellner system520.0%90.0%
C02French, advance, Nimzovich variation560.0%50.0%
C22Centre game, Hall variation540.0%40.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence560.0%30.0%
C29Vienna gambit, Paulsen attack580.0%60.0%
C29Vienna gambit, Steinitz variation540.0%40.0%
C30KGD, Keene's defence560.0%70.0%
C31KGD, Falkbeer, Nimzovich variation560.0%70.0%
C31KGD, Falkbeer, Rubinstein variation520.0%70.0%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence540.0%40.0%
C40Latvian gambit, 3.Bc4580.0%40.0%
C41Philidor, Nimzovich, Klein variation580.0%60.0%
C46Three knights, Steinitz, Rosenthal variation540.0%40.0%
C56Two knights defence, Canal variation540.0%40.0%
C57Two knights defence, Fritz variation560.0%30.0%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C80Ruy Lopez, open, Tartakower variation540.0%40.0%
C82Ruy Lopez, open, 9.c350.0%80.0%
D32QGD, Tarrasch defence, Tarrasch gambit540.0%20.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D50QGD, Been-Koomen variation540.0%20.0%
E78King's Indian, Four pawns attack, with Be2 and Nf3540.0%60.0%
A00Global opening425.0%62.5%
A00Grob, Romford counter-gambit425.0%62.5%
A00Ware (Meadow Hay) opening425.0%62.5%
A03Mujannah opening450.0%25.0%
A70Benoni, classical without 9.O-O425.0%37.5%
A81Dutch, Leningrad, Basman system450.0%75.0%
A81Dutch, Leningrad, Karlsbad variation475.0%62.5%
B00Carr's defence450.0%50.0%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B05Alekhine's defence, modern, Vitolins attack450.0%50.0%
B71Sicilian, dragon, Levenfish; Flohr variation450.0%50.0%
C00French, Alapin variation475.0%62.5%
C12French, MacCutcheon, Duras variation425.0%62.5%
C14French, classical variation425.0%12.5%
C21Danish gambit, Collijn defence475.0%37.5%
C21Halasz gambit450.0%50.0%
C22Centre game, Charousek variation450.0%50.0%
C31KGD, Falkbeer, Tartakower variation475.0%62.5%
C32KGD, Falkbeer, Reti variation450.0%50.0%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit425.0%62.5%
C33KGA, bishop's gambit, Paulsen attack450.0%50.0%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C37KGA, Salvio gambit, Anderssen counter-attack40.0%50.0%
C43Petrov, modern attack, Bardeleben variation425.0%62.5%
C51Evans gambit450.0%75.0%
C57Two knights defence, Fritz, Gruber variation425.0%37.5%
C59Two knights defence, Goering variation425.0%12.5%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
C78Ruy Lopez, Wing attack40.0%50.0%
D08QGD, Albin counter-gambit, Balogh variation425.0%87.5%
D08QGD, Albin counter-gambit, Janowski variation425.0%62.5%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D21QGA, Ericson variation40.0%25.0%
D51QGD, Alekhine variation40.0%50.0%
D53QGD, Lasker variation425.0%87.5%
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%
A00Anti-Borg (Desprez) opening30.0%33.3%
A00Lasker simul special333.3%50.0%
A43Hawk (Habichd) defence366.7%33.3%
A46Queen's pawn, Torre attack, Wagner gambit333.3%83.3%
A51Budapest, Fajarowicz, Steiner variation366.7%33.3%
A59Benko gambit, Ne2 variation30.0%33.3%
B03Alekhine's defence, four pawns attack, Planinc variation333.3%50.0%
B15Caro-Kann, Gurgenidze counter-attack366.7%66.7%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
C01French, exchange, Bogolyubov variation333.3%50.0%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C30KGD, classical, Marshall attack3100.0%50.0%
C33KGA, Breyer gambit333.3%50.0%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit333.3%50.0%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
C37KGA, Cochrane gambit333.3%50.0%
C40QP counter-gambit, Maroczy gambit366.7%66.7%
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%
C42Petrov, French attack333.3%83.3%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C48Four knights, Spielmann variation366.7%33.3%
C50Rousseau gambit333.3%50.0%
C57Two knights defence, Fegatello attack, Polerio defence30.0%100.0%
C58Two knights defence, Blackburne variation30.0%66.7%
C61Ruy Lopez, Bird's defence, Paulsen variation333.3%50.0%
C64Ruy Lopez, classical defence, Charousek variation333.3%83.3%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
D00Queen's pawn, Anti-Veresov366.7%33.3%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
D86Gruenfeld, exchange, Larsen variation30.0%66.7%
E37Nimzo-Indian, classical, San Remo variation30.0%66.7%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd333.3%16.7%
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%
A25English, closed, 5.Rb1 Taimanov variation20.0%50.0%
A83Dutch, Staunton gambit, Alekhine variation250.0%25.0%
A83Dutch, Staunton gambit, Nimzovich variation20.0%0.0%
A86Dutch, Hort-Antoshin system2100.0%50.0%
B00Corn stalk defence250.0%25.0%
B00KP, Colorado counter20.0%50.0%
B01Scandinavian, Richter variation250.0%75.0%
B02Alekhine's defence, Krejcik variation250.0%25.0%
B07Pirc, Chinese variation250.0%25.0%
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%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation250.0%75.0%
C15French, Winawer, Alekhine gambit20.0%50.0%
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%
C24Bishop's opening, Ponziani gambit250.0%25.0%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C32KGD, Falkbeer, Charousek gambit2100.0%50.0%
C33KGA, bishop's gambit, Boden defence250.0%25.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence2100.0%50.0%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C37KGA, Salvio gambit250.0%75.0%
C40King's knight opening20.0%50.0%
C41Philidor, Hanham, Delmar variation2100.0%50.0%
C41Philidor, Lopez counter-gambit20.0%50.0%
C41Philidor, Paulsen attack250.0%25.0%
C41Philidor, Steinitz variation20.0%0.0%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C44Dresden opening20.0%0.0%
C44Scotch opening2100.0%50.0%
C45Scotch, Ghulam Kassim variation2100.0%50.0%
C45Scotch, Pulling counter-attack20.0%50.0%
C48Four knights, Marshall variation20.0%0.0%
C48Four knights, Rubinstein counter-gambit, 5.Be22100.0%50.0%
C49Four knights, symmetrical, Blake variation2100.0%50.0%
C51Evans counter-gambit250.0%75.0%
C51Evans gambit declined, Lange variation20.0%0.0%
C51Evans gambit, Fraser attack20.0%100.0%
C52Evans gambit, Alapin-Steinitz variation250.0%25.0%
C52Evans gambit, Sanders-Alapin variation20.0%100.0%
C55Giuoco piano20.0%50.0%
C60Ruy Lopez, Lucena defence20.0%50.0%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C77Ruy Lopez, Wormald attack, Gruenfeld variation2100.0%50.0%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C83Ruy Lopez, open, Breslau variation250.0%75.0%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
D19QGD Slav, Dutch, Saemisch variation250.0%25.0%
D50QGD, Canal (Venice) variation20.0%50.0%
E14Queen's Indian, Averbakh variation20.0%50.0%
E77King's Indian, Four pawns attack, Florentine gambit2100.0%50.0%
A00Amar gambit10.0%0.0%
A00Amsterdam attack10.0%100.0%
A02Bird, From gambit, Lipke variation10.0%0.0%
A38English, symmetrical, main line with b31100.0%50.0%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
A56Vulture defence1100.0%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%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation10.0%100.0%
B40Sicilian, Marshall variation10.0%100.0%
B62Sicilian, Richter-Rauzer, Richter attack10.0%100.0%
C11French, Steinitz, Bradford attack1100.0%50.0%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C15French, Winawer, Kondratiyev variation1100.0%50.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
C25Vienna, Steinitz gambit10.0%0.0%
C27Vienna, `Frankenstein-Dracula' variation10.0%100.0%
C30KGD, classical counter-gambit10.0%0.0%
C30KGD, classical, Reti variation1100.0%50.0%
C30KGD, classical, Svenonius variation1100.0%50.0%
C32KGD, Falkbeer, Keres variation10.0%100.0%
C33KGA, Carrera (Basman) gambit10.0%100.0%
C33KGA, bishop's gambit, classical defence10.0%0.0%
C33King's gambit accepted10.0%0.0%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%
C39KGA, Kieseritsky, Brentano defence10.0%100.0%
C43Petrov, modern attack, Steinitz variation1100.0%50.0%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C44Scotch gambit, Hanneken variation10.0%100.0%
C45Scotch, Paulsen attack10.0%100.0%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
C49Four knights, Svenonius variation10.0%100.0%
C51Evans gambit, Goering attack10.0%100.0%
C53Giuoco Piano, Mestel variation1100.0%50.0%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C55Two knights, Max Lange attack, Loman defence10.0%100.0%
C65Ruy Lopez, Berlin defence, Anderssen variation1100.0%50.0%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
D08QGD, Albin counter-gambit, Lasker trap10.0%100.0%
D26QGA, classical, Furman variation10.0%0.0%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D50QGD, Semi-Tarrasch, Krause variation1100.0%50.0%
D63QGD, Orthodox defence, Capablanca variation1100.0%50.0%
D80Gruenfeld, Lundin variation10.0%0.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation10.0%100.0%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%

Created in 2005-2013 by CCRL team
Last games added on November 18, 2017