CCRL 40/40
Downloads and Statistics
June 23, 2018
Testing summary:
Total: 851'868 games
played by 2'199 programs
119167 CPU days (X2 4600+)

White wins: 292'748 (34.4%)
Black wins: 216'649 (25.4%)
Draws: 342'471 (40.2%)
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) attack1951335.3%53.1%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1476940.6%56.4%
D45QGD semi-Slav, Stoltz variation1174143.4%53.2%
A15English opening1138243.1%53.4%
B12Caro-Kann, advance variation1027738.0%56.2%
A04Reti opening783138.3%54.2%
D43QGD semi-Slav701141.1%52.9%
D47QGD semi-Slav, Meran, Wade variation692739.5%53.6%
A00Benko's opening689442.1%52.3%
E12Queen's Indian, Petrosian system669043.1%54.0%
E32Nimzo-Indian, classical variation639242.3%53.7%
A29English, four knights, kingside fianchetto617240.8%51.9%
B06Robatsch (modern) defence610936.2%56.3%
B22Sicilian, Alapin's variation (2.c3)609043.5%54.7%
D30Queen's gambit declined608245.4%55.5%
A20English opening570738.2%54.3%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6569333.6%51.5%
D37QGD, 4.Nf3556046.4%52.9%
B40Sicilian defence519138.9%53.9%
C11French, Burn variation516044.1%53.0%
B92Sicilian, Najdorf, Opovcensky variation512239.9%53.3%
D02Queen's pawn game502341.0%52.7%
D58QGD, Tartakower (Makagonov-Bondarevsky) system498746.4%52.0%
A07Reti, King's Indian attack (Barcza system)478041.3%53.5%
E12Queen's Indian, 4.Nc3461540.3%53.1%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)455938.2%56.3%
E04Catalan, open, 5.Nf3439043.5%53.6%
D11QGD Slav, 4.e3426741.8%55.4%
D38QGD, Ragozin variation423246.1%52.4%
E10Queen's pawn game422544.7%55.7%
D37QGD, classical variation (5.Bf4)418944.9%55.3%
A45Trompovsky attack (Ruth, Opovcensky opening)408835.9%52.5%
D15QGD Slav, 4.Nc3401739.6%54.7%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)401433.1%55.9%
B50Sicilian398040.4%53.2%
D27QGA, classical, 6...a6395150.9%55.2%
D10QGD Slav defence389541.0%54.1%
B47Sicilian, Taimanov (Bastrikov) variation382441.2%54.2%
C91Ruy Lopez, closed, Bogolyubov variation379943.2%53.8%
B17Caro-Kann, Steinitz variation374943.2%53.6%
C67Ruy Lopez, Berlin defence, open variation371946.3%54.0%
B84Sicilian, Scheveningen (Paulsen), classical variation367738.7%52.1%
A05Reti opening366437.1%53.4%
C07French, Tarrasch, open variation362747.6%53.6%
C11French, Steinitz, Boleslavsky variation343535.5%57.3%
B27Sicilian, Hungarian variation340740.7%57.5%
A06Reti, Nimzovich-Larsen attack340641.7%49.5%
A81Dutch defence333137.8%56.6%
B48Sicilian, Taimanov variation329937.1%56.2%
E00Catalan opening328142.6%54.9%
B23Sicilian, closed321938.1%51.6%
D85Gruenfeld, modern exchange variation320046.6%55.8%
A01Nimzovich-Larsen attack, modern variation319540.2%50.8%
A02Bird's opening317036.3%49.1%
A46Queen's pawn game315840.6%54.7%
B46Sicilian, Taimanov variation314338.5%55.2%
A03Bird's opening310435.9%47.7%
A30English, symmetrical variation308839.7%54.8%
D12QGD Slav, 4.e3 Bf5307540.0%54.4%
C65Ruy Lopez, Berlin defence303839.6%51.2%
D85Gruenfeld, exchange variation299347.7%56.4%
E06Catalan, closed, 5.Nf3298348.3%54.0%
B43Sicilian, Kan, 5.Nc3296338.7%56.4%
D20QGA, 3.e4296039.7%56.4%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)289440.9%56.0%
C88Ruy Lopez, closed, 7...O-O288040.3%52.2%
E60King's Indian, 3.Nf3285039.5%57.6%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7279333.2%55.5%
B90Sicilian, Najdorf276136.1%53.9%
A10English opening275638.0%54.8%
B01Scandinavian, Pytel-Wade variation273043.8%58.2%
B30Sicilian defence269640.2%54.7%
B19Caro-Kann, classical, Spassky variation269239.7%56.6%
A30English, symmetrical, hedgehog system263546.8%55.7%
B01Scandinavian (centre counter) defence260741.6%57.1%
C19French, Winawer, advance, poisoned pawn variation257833.4%61.1%
E15Queen's Indian, 4.g3252646.6%55.4%
E21Nimzo-Indian, three knights variation248541.2%54.3%
C43Petrov, modern attack, Symmetrical variation245445.0%53.3%
D11QGD Slav, 3.Nf3244141.0%55.7%
C45Scotch game243642.8%53.6%
A07Reti, King's Indian attack243041.5%52.9%
A45Queen's pawn game240238.6%54.0%
B08Pirc, classical system, 5.Be2235938.2%57.4%
C10French, Rubinstein variation228348.4%55.3%
B10Caro-Kann defence224835.4%52.9%
B81Sicilian, Scheveningen, Keres attack222034.5%59.6%
A40Queen's pawn221737.0%55.1%
C03French, Tarrasch221144.3%56.8%
A80Dutch221035.2%54.8%
C00French, King's Indian attack220737.3%51.5%
B20Sicilian defence217735.8%50.3%
E63King's Indian, fianchetto, Panno variation217737.9%57.1%
E81King's Indian, Saemisch, 5...O-O214933.8%55.4%
A21English, Kramnik-Shirov counterattack213640.4%52.3%
C44Ponziani, Jaenisch counter-attack213145.8%52.7%
C53Giuoco Piano211838.1%52.7%
B33Sicilian, Pelikan, Chelyabinsk variation211336.0%57.1%
A35English, symmetrical, four knights system210243.6%53.5%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)207243.5%53.9%
E11Bogo-Indian defence, Gruenfeld variation206740.4%56.1%
A41Queen's Pawn200735.7%54.7%
A13English opening198736.7%52.1%
B35Sicilian, accelerated fianchetto, modern variation with Bc4198343.3%53.5%
D00Levitsky attack (Queen's bishop attack)197236.7%52.0%
B45Sicilian, Taimanov variation195438.1%56.4%
B42Sicilian, Kan, 5.Bd3189437.8%58.2%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)188138.6%56.3%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation187548.2%55.7%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6183646.4%55.4%
A17English, Nimzo-English opening183139.4%53.5%
A00Polish (Sokolsky) opening182539.2%48.9%
A40Queen's pawn, Keres defence181843.7%56.0%
A00Dunst (Sleipner, Heinrichsen) opening180635.9%49.2%
B23Sicilian, closed, 2...Nc6180640.5%51.6%
C02French, advance, Paulsen attack178433.6%54.7%
C50Giuoco Pianissimo176338.3%53.2%
B07Pirc defence175236.9%55.7%
E14Queen's Indian, 4.e3174440.0%53.6%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack171138.1%55.5%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7169242.8%50.0%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation168444.4%51.2%
A07Reti, King's Indian attack, Yugoslav variation167640.0%53.0%
C42Petrov, classical attack, Jaenisch variation166445.6%58.3%
E60King's Indian, 3.g3166342.4%56.2%
E18Queen's Indian, old main line, 7.Nc3165043.3%56.9%
A48King's Indian, Torre attack164439.2%49.6%
B56Sicilian162539.7%53.4%
D39QGD, Ragozin, Vienna variation159250.1%51.1%
B97Sicilian, Najdorf, 7...Qb6158933.3%46.5%
B93Sicilian, Najdorf, 6.f4158739.6%50.7%
B18Caro-Kann, classical variation158544.5%54.3%
C78Ruy Lopez, Archangelsk (counterthrust) variation158141.9%54.6%
A33English, symmetrical variation156547.0%54.3%
C88Ruy Lopez, closed, anti-Marshall 8.a4156339.5%53.7%
E11Bogo-Indian defence156039.3%54.6%
A43Old Benoni defence155335.1%58.2%
B00King's pawn opening154936.7%57.3%
D31QGD, Charousek (Petrosian) variation154345.2%53.3%
A22English, Bremen, Smyslov system154139.0%48.8%
B21Sicilian, Grand Prix attack153835.6%52.4%
D10QGD Slav defence, exchange variation150644.4%55.5%
A21English opening150133.1%55.5%
E11Bogo-Indian defence, Nimzovich variation149238.8%57.5%
E92King's Indian, Gligoric-Taimanov system148934.3%58.5%
C01French, exchange variation147944.7%53.4%
E12Queen's Indian, Miles variation147143.7%53.6%
D27QGA, classical, Rubinstein variation146647.5%56.1%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3146044.7%52.9%
B42Sicilian, Kan, Polugaievsky variation143336.4%54.2%
D48QGD semi-Slav, Meran, 8...a6140449.4%48.9%
C45Scotch, Mieses variation139341.2%54.2%
B33Sicilian, Sveshnikov variation138838.5%50.8%
A46Queen's pawn, Torre attack138336.6%52.2%
E19Queen's Indian, old main line, 9.Qxc3137646.4%58.4%
A11English, Caro-Kann defensive system137540.1%53.8%
D02Queen's bishop game137038.2%53.6%
B10Caro-Kann, anti-anti-Caro-Kann defence136447.7%51.8%
A36English, ultra-symmetrical variation136138.1%52.7%
B96Sicilian, Najdorf, 7.f4135734.7%51.5%
C55Two knights defence (Modern bishop's opening)135538.5%56.2%
C02French, advance, Euwe variation135336.0%54.1%
C84Ruy Lopez, closed defence135040.7%52.1%
D19QGD Slav, Dutch variation133939.2%57.2%
A13English opening, Agincourt variation132640.0%53.9%
A16English opening131735.7%53.5%
B57Sicilian, Sozin, Benko variation129839.3%51.6%
C08French, Tarrasch, open, 4.ed ed129749.8%54.5%
B53Sicilian, Chekhover variation128942.7%50.7%
D47QGD semi-Slav, Meran variation128349.0%54.8%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)128139.7%49.1%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack127335.3%58.2%
E68King's Indian, fianchetto, classical variation, 8.e4125838.7%59.7%
C88Ruy Lopez, closed124841.4%52.7%
C80Ruy Lopez, open, 8...Be6124238.5%43.2%
B80Sicilian, Scheveningen variation124130.9%54.1%
A34English, symmetrical, three knights system124043.3%54.4%
A01Nimzovich-Larsen attack, classical variation123935.8%49.4%
A05Reti, King's Indian attack122739.9%53.6%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc122648.7%55.8%
B90Sicilian, Najdorf, Adams attack122438.1%52.4%
C91Ruy Lopez, closed, 9.d4121939.0%57.8%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation121740.0%56.5%
C02French, advance variation121532.4%56.0%
C90Ruy Lopez, closed (with ...d6)119436.9%51.5%
A49King's Indian, fianchetto without c4118839.7%57.0%
A15English, 1...Nf6 (Anglo-Indian defense)116040.3%54.5%
B09Pirc, Austrian attack, 6.Bd3115639.4%59.7%
C42Petrov, Nimzovich attack115645.2%55.2%
A40Queen's pawn, Franco-Indian (Keres) defence114238.6%56.2%
A13English, Neo-Catalan accepted113945.9%56.2%
C05French, Tarrasch, closed variation113331.5%60.4%
C78Ruy Lopez, 5.O-O112546.3%54.5%
A48King's Indian, London system112138.4%53.9%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7111937.7%55.9%
C24Bishop's opening, Berlin defence111040.6%53.1%
B97Sicilian, Najdorf, Poisoned pawn variation110145.0%49.7%
B95Sicilian, Najdorf, 6...e6108538.8%49.3%
C09French, Tarrasch, open variation, main line108549.6%56.8%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3107843.9%57.7%
D86Gruenfeld, exchange, classical variation107845.7%55.6%
C48Four knights, Rubinstein counter-gambit107339.6%52.5%
A04Reti v Dutch106434.8%58.7%
C19French, Winawer, advance, positional main line105931.0%57.6%
A34English, symmetrical variation105639.8%54.5%
D31QGD, semi-Slav105640.0%54.9%
B01Scandinavian defence104140.6%59.4%
A53Old Indian defence103439.2%56.8%
B89Sicilian, Sozin, 7.Be3103437.2%50.6%
B13Caro-Kann, Panov-Botvinnik attack103347.8%52.7%
A90Dutch defence103139.1%60.9%
C41Philidor, Improved Hanham variation102538.4%57.2%
E73King's Indian, Averbakh system102233.8%55.1%
A80Dutch, 2.Bg5 variation102133.1%54.5%
A41Old Indian, Tartakower (Wade) variation101934.5%61.2%
D35QGD, exchange, positional line101840.4%54.4%
B06Robatsch defence, Two knights, Suttles variation101238.1%58.4%
C11French, Steinitz variation101138.1%54.6%
E94King's Indian, orthodox variation100937.3%54.0%
A28English, four knights, 4.e3100837.0%51.8%
A40Modern defence100837.2%57.3%
C06French, Tarrasch, closed variation, main line100637.5%59.8%
D00Queen's pawn, Mason variation100339.1%52.8%
A37English, symmetrical variation99841.2%50.5%
A31English, symmetrical, Benoni formation99740.4%56.0%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation99735.5%55.0%
D53QGD, 4.Bg5 Be799045.9%54.6%
B90Sicilian, Najdorf, Lipnitzky attack97535.9%49.6%
E70King's Indian, 4.e497533.3%58.3%
E17Queen's Indian, old main line, 6.O-O97242.1%58.8%
C42Petrov, classical attack, Marshall variation96943.6%57.1%
E39Nimzo-Indian, classical, Pirc variation96139.6%55.1%
B36Sicilian, accelerated fianchetto, Maroczy bind95144.9%58.0%
E46Nimzo-Indian, Reshevsky variation94444.4%51.5%
C77Ruy Lopez, Anderssen variation94041.5%51.5%
D20Queen's gambit accepted93346.1%55.3%
B76Sicilian, dragon, Yugoslav attack, Rauser variation92633.4%64.6%
E94King's Indian, orthodox, 7...Nbd792334.3%59.8%
A09Reti, advance variation91939.2%48.5%
C99Ruy Lopez, closed, Chigorin, 12...c5d490940.3%62.7%
D91Gruenfeld, 5.Bg590639.6%48.2%
B11Caro-Kann, Two knights, 3...Bg490239.9%56.2%
C80Ruy Lopez, open, Bernstein variation89648.3%62.9%
A88Dutch, Leningrad, main variation with c689139.5%58.0%
D80Gruenfeld defence89147.5%54.7%
D31QGD, semi-Slav, Marshall gambit88243.3%54.2%
E61King's Indian defence, 3.Nc387736.1%55.4%
C00French, Chigorin variation87332.5%49.9%
A48King's Indian, East Indian defence86838.0%51.7%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne186726.4%60.7%
E90King's Indian, 5.Nf386433.0%57.2%
A41Old Indian defence85432.0%54.5%
B54Sicilian85037.6%55.3%
D31QGD, 3.Nc385041.4%55.2%
B13Caro-Kann, exchange variation84440.3%51.7%
B32Sicilian defence84038.9%55.8%
A28English, four knights, Marini variation83339.3%51.1%
A57Benko gambit half accepted83039.4%58.1%
D30QGD82947.4%51.8%
B04Alekhine's defence, modern, Larsen variation82542.7%60.1%
C90Ruy Lopez, closed, Pilnik variation82535.5%51.7%
D73Neo-Gruenfeld, 5.Nf382550.9%55.2%
B44Sicilian, Szen (`anti-Taimanov') variation82240.0%53.7%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation82243.7%55.5%
A14English, Neo-Catalan declined81843.4%54.2%
A25English, Sicilian reversed81734.6%52.8%
D04Queen's pawn game81340.7%51.2%
C16French, Winawer, advance variation81234.4%57.5%
C50Giuoco Piano81038.4%52.3%
A62Benoni, fianchetto variation80834.5%56.0%
B40Sicilian, Anderssen variation80340.2%57.3%
B94Sicilian, Najdorf, 6.Bg579935.3%52.9%
C15French, Winawer (Nimzovich) variation79742.4%55.5%
A46Queen's pawn, Yusupov-Rubinstein system79640.8%52.8%
D35QGD, exchange, positional line, 5...c679542.4%55.4%
E34Nimzo-Indian, classical, Noa variation79252.5%54.0%
B29Sicilian, Nimzovich-Rubinstein variation79042.2%59.1%
C42Petrov, classical attack79047.3%56.8%
B09Pirc, Austrian attack, dragon formation77838.8%58.4%
D78Neo-Gruenfeld, 6.O-O c677742.0%54.7%
B21Sicilian, Smith-Morra gambit77441.7%47.5%
B87Sicilian, Sozin with ...a6 and ...b577436.6%51.1%
D07QGD, Chigorin defence77135.9%57.0%
C97Ruy Lopez, closed, Chigorin defence76930.6%63.5%
E20Nimzo-Indian, Kmoch variation76938.5%53.8%
C00French defence, Steiner variation76843.2%51.4%
D30QGD, Vienna variation76853.1%52.5%
D44QGD semi-Slav, anti-Meran gambit76634.9%58.2%
E60King's Indian defence76535.7%55.8%
E71King's Indian, Makagonov system (5.h3)76035.0%59.6%
A25English, closed system75934.4%54.3%
C41Philidor, exchange variation75737.9%58.9%
D48QGD semi-Slav, Meran, Reynolds' variation75739.9%56.3%
A37English, symmetrical, Botvinnik system reversed75037.6%50.9%
E41Nimzo-Indian, 4.e3 c574745.0%54.6%
E59Nimzo-Indian, 4.e3, main line74643.4%53.5%
B23Sicilian, Grand Prix attack74536.6%50.0%
B89Sicilian, Velimirovic attack74533.8%51.5%
B10Caro-Kann, closed (Breyer) variation74438.4%52.7%
C14French, classical, Steinitz variation74335.4%58.1%
C69Ruy Lopez, exchange, Gligoric variation74242.9%55.0%
A22English opening74137.5%51.0%
A13English, Neo-Catalan73840.9%53.1%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation73837.9%53.7%
C95Ruy Lopez, closed, Breyer, Borisenko variation73740.2%56.4%
A07Reti, King's Indian attack, Keres variation72934.4%54.7%
B70Sicilian, dragon variation72741.8%51.6%
D13QGD Slav, exchange variation72246.3%55.4%
B06Robatsch defence71435.7%58.2%
A01Nimzovich-Larsen attack71336.7%53.4%
D17QGD Slav, Krause attack71339.1%58.3%
A10English, Anglo-Dutch defense71233.7%52.4%
A58Benko gambit accepted71233.7%59.3%
C69Ruy Lopez, exchange variation, 5.O-O71042.1%53.9%
B04Alekhine's defence, modern, fianchetto variation70834.3%57.1%
C10French, Paulsen variation70733.0%59.1%
A01Nimzovich-Larsen attack, symmetrical variation70341.8%49.6%
B60Sicilian, Richter-Rauzer70335.7%58.5%
D77Neo-Gruenfeld, 6.O-O70246.7%54.3%
D80Gruenfeld, Stockholm variation70143.7%54.4%
D26QGA, classical variation69751.9%53.1%
E17Queen's Indian, Opovcensky variation69739.5%54.9%
A57Benko gambit69335.9%56.2%
D92Gruenfeld, 5.Bf468144.6%56.7%
D14QGD Slav, exchange variation, 6.Bf4 Bf567949.5%51.0%
A85Dutch with c4 & Nc367835.5%54.6%
B12Caro-Kann, Tartakower (fantasy) variation67738.0%55.9%
E12Queen's Indian defence67742.7%54.0%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation67231.1%62.4%
D34QGD, Tarrasch, Prague variation, Normal position67047.9%56.2%
A22English, Bremen, reverse dragon66840.1%50.6%
D03Torre attack (Tartakower variation)66839.4%51.0%
D00Queen's pawn game66737.6%50.3%
B03Alekhine's defence, exchange variation66339.7%57.8%
C45Scotch, Schmidt variation66349.6%46.7%
A50Queen's pawn game65937.8%55.8%
B49Sicilian, Taimanov variation65644.2%58.1%
C88Ruy Lopez, Trajkovic counter-attack65141.6%52.0%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)64845.7%54.2%
A09Reti opening64539.1%53.5%
A56Benoni defence64533.3%59.9%
A27English, three knights system64435.7%53.1%
C96Ruy Lopez, closed (10...c5)64433.1%64.7%
B20Sicilian, Keres variation (2.Ne2)64140.9%52.4%
B39Sicilian, accelerated fianchetto, Breyer variation64140.7%58.3%
D17QGD Slav, Wiesbaden variation63542.2%57.0%
E30Nimzo-Indian, Leningrad variation63436.6%48.3%
A06Reti opening62937.4%53.0%
A33English, symmetrical, Geller variation62838.5%53.8%
B23Sicilian, chameleon variation62634.3%57.7%
D41QGD, Semi-Tarrasch, 5.cd62448.2%57.1%
B05Alekhine's defence, modern variation, 4...Bg462133.0%64.0%
A23English, Bremen system, Keres variation62040.2%48.3%
C46Four knights game61944.1%50.2%
D05Queen's pawn game61535.4%52.7%
B99Sicilian, Najdorf, 7...Be7 main line61128.6%53.1%
B07Robatsch defence, Geller's system60837.2%57.4%
E38Nimzo-Indian, classical, 4...c560837.7%60.1%
E91King's Indian, 6.Be260833.7%64.7%
B26Sicilian, closed, 6.Be360332.5%49.8%
C10French, Fort Knox variation60340.1%57.2%
B08Pirc, classical (two knights) system60137.3%58.6%
D90Gruenfeld, Three knights variation59749.9%54.1%
E92King's Indian, Petrosian system, Stein variation59533.1%54.0%
B02Alekhine's defence59235.8%54.9%
C00French defence59134.9%57.2%
A70Benoni, classical with e4 and Nf359039.7%59.5%
E43Nimzo-Indian, Fischer variation58936.5%54.1%
B88Sicilian, Sozin, Leonhardt variation58740.2%54.5%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd358746.8%52.0%
D30QGD, Hastings variation58647.3%52.5%
A84Dutch defence58438.9%57.1%
C78Ruy Lopez, Moeller defence58242.3%53.3%
C42Petrov, classical attack, Chigorin variation57740.9%57.0%
B18Caro-Kann, classical, 6.h456841.5%53.9%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed56846.7%50.4%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation56633.0%60.5%
B01Scandinavian, Marshall variation56445.2%60.0%
B10Caro-Kann, anti-Caro-Kann defence56133.0%60.3%
A08Reti, King's Indian attack55742.4%52.6%
B00KP, Nimzovich defence55732.5%59.2%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd455340.5%55.7%
A28English, four knights, Nimzovich variation55133.2%54.7%
D34QGD, Tarrasch, Prague variation, 9.Bg554547.5%57.5%
D45QGD semi-Slav, 5...Nd754538.3%53.1%
B83Sicilian, Scheveningen, 6.Be254340.0%52.8%
D82Gruenfeld, 4.Bf454345.5%53.1%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb654043.5%57.7%
C26Vienna, Paulsen-Mieses variation53341.3%52.5%
D87Gruenfeld, exchange, Spassky variation53141.8%55.6%
A14English, Symmetrical, Keres defence52947.6%57.1%
A38English, symmetrical variation52945.0%55.2%
C45Scotch, Potter variation52939.7%51.6%
B83Sicilian, modern Scheveningen, main line52344.2%53.1%
A47Queen's Indian defence52238.5%52.2%
E01Catalan, closed52149.1%52.8%
C89Ruy Lopez, Marshall counter-attack52052.5%54.5%
E67King's Indian, fianchetto, classical variation51941.0%55.6%
C65Ruy Lopez, Berlin defence, Beverwijk variation51837.1%57.5%
D79Neo-Gruenfeld, 6.O-O, main line51748.4%54.4%
B06Robatsch defence, Pseudo-Austrian attack51334.1%54.7%
A00Van't Kruijs opening50740.8%51.2%
B82Sicilian, Scheveningen, 6.f450732.7%57.4%
C69Ruy Lopez, exchange, Bronstein variation50734.1%50.6%
C42Petrov, Cozio (Lasker) attack50548.7%52.7%
D00Queen's pawn, Mason variation, Steinitz counter-gambit50437.1%50.5%
A61Benoni defence50332.2%62.0%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d549642.7%49.2%
C18French, Winawer, advance variation48726.1%63.1%
A10English, Adorjan defence48638.3%53.5%
B16Caro-Kann, Bronstein-Larsen variation48532.2%61.6%
C80Ruy Lopez, open, 7.Bb348541.0%52.9%
E41Nimzo-Indian, e3, Huebner variation48533.2%51.9%
B41Sicilian, Kan, Maroczy bind (Reti variation)48035.6%58.0%
D17QGD Slav, Carlsbad variation47936.7%60.5%
D01Richter-Veresov attack47736.3%45.8%
C47Four knights, Scotch, 4...exd447649.2%53.8%
E52Nimzo-Indian, 4.e3, main line with ...b647339.7%53.5%
C44Ponziani, Steinitz variation47141.6%45.9%
A28English, four knights, Capablanca variation46636.3%54.0%
C72Ruy Lopez, modern Steinitz defence, 5.O-O46644.8%57.4%
B24Sicilian, closed46236.1%50.8%
B33Sicilian defence45636.0%54.2%
A28English, four knights, Romanishin variation45550.1%52.3%
B54Sicilian, Prins (Moscow) variation45038.0%58.1%
D97Gruenfeld, Russian, Prins variation44943.7%57.0%
A25English, closed, 5.Rb144840.4%52.8%
E69King's Indian, fianchetto, classical main line44533.5%62.1%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system44345.1%54.0%
A42Modern defence, Averbakh system43832.9%58.7%
B83Sicilian, modern Scheveningen43841.6%49.1%
A39English, symmetrical, main line with d443541.4%57.0%
B58Sicilian, Boleslavsky variation43536.8%48.0%
B25Sicilian, closed, 6.f443339.7%51.0%
D46QGD semi-Slav, Chigorin defence43345.0%53.9%
A55Old Indian, main line43038.1%58.4%
E84King's Indian, Saemisch, Panno main line43037.9%52.7%
A22English, Carls' Bremen system42740.0%54.0%
C89Ruy Lopez, Marshall, main line, 14...Qh342750.4%50.9%
D02Queen's pawn game, Chigorin variation42740.3%57.1%
D16QGD Slav, Soultanbeieff variation42749.2%53.6%
D94Gruenfeld, 5.e342744.7%57.5%
D52QGD, Cambridge Springs defence, Bogoljubow variation42647.7%56.0%
E16Queen's Indian, Capablanca variation42642.0%56.9%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd242438.9%61.2%
E00Queen's pawn game42441.0%56.4%
E44Nimzo-Indian, Fischer variation, 5.Ne242337.8%55.6%
D40QGD, Semi-Tarrasch defence42242.2%54.7%
A00Anderssen's opening41742.0%50.5%
B08Pirc, classical, h3 system41337.3%58.8%
D45QGD semi-Slav, 5.e341140.4%56.2%
C50Giuoco Pianissimo, Italian four knights variation41037.6%51.5%
D52QGD, Cambridge Springs defence, Yugoslav variation41037.6%56.1%
B20Sicilian, Steinitz variation40942.8%50.2%
B28Sicilian, O'Kelly variation40939.4%57.3%
A32English, symmetrical variation40543.2%57.9%
A56Benoni defence, Hromodka system40524.4%64.3%
C22Centre game40537.5%46.2%
D81Gruenfeld, Russian variation40543.5%61.7%
B07Pirc, Ufimtsev-Pytel variation40339.2%59.3%
C64Ruy Lopez, classical defence, Benelux variation 40139.9%56.4%
E53Nimzo-Indian, 4.e3, main line with ...c539740.6%54.3%
A50Kevitz-Trajkovich defence39435.8%56.0%
C17French, Winawer, advance, 5.a339032.8%63.3%
D02Queen's pawn game, Krause variation39045.6%54.1%
D17QGD Slav, Czech defence38948.1%54.9%
C63Ruy Lopez, Schliemann defence, Berger variation38843.0%56.6%
A34English, symmetrical, Rubinstein system38738.2%52.5%
B07Pirc, Byrne variation38632.6%57.0%
C92Ruy Lopez, closed, 9.h338642.7%52.2%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O38428.6%56.0%
C02French, advance, Steinitz variation38434.1%54.6%
B19Caro-Kann, classical, 7...Nd738350.1%53.0%
E16Queen's Indian, Yates variation38337.1%58.5%
C12French, MacCutcheon, Lasker variation, 8...g638235.6%59.2%
A89Dutch, Leningrad, main variation with Nc638136.0%63.6%
D35QGD, exchange variation38143.0%55.9%
B10Caro-Kann, Two knights variation38037.4%59.7%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c638029.5%54.5%
A19English, Mikenas-Carls, Sicilian variation37441.7%54.5%
C28Vienna game37442.2%53.2%
B74Sicilian, dragon, classical, 9.Nb337252.7%48.1%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc237246.0%62.5%
A52Budapest, Rubinstein variation37141.2%60.2%
A61Benoni, Nimzovich (knight's tour) variation37128.0%58.5%
E80King's Indian, Saemisch variation37033.5%58.9%
B73Sicilian, dragon, classical, 8.O-O36746.0%52.2%
D25QGA, Janowsky-Larsen variation36739.8%57.5%
D55QGD, Petrosian variation36551.8%53.8%
C22Centre game, Berger variation36437.9%53.8%
A00Saragossa opening36230.4%50.6%
C77Ruy Lopez, Wormald (Alapin) attack36042.8%54.4%
A28English, four knights system35943.7%51.4%
B34Sicilian, accelerated fianchetto, modern variation35936.5%51.4%
C17French, Winawer, advance, Bogolyubov variation35939.8%51.1%
E70King's Indian, Kramer system35832.4%58.1%
D55QGD, Neo-orthodox variation, 7.Bxf635645.2%51.3%
C19French, Winawer, advance, 6...Ne735536.6%57.5%
D30QGD, Capablanca-Duras variation35545.4%53.7%
B85Sicilian, Scheveningen, classical main line35446.0%55.5%
A05Reti, King's Indian attack, Spassky's variation35243.8%53.1%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence35241.8%51.3%
E56Nimzo-Indian, 4.e3, main line with 7...Nc635151.0%56.0%
E95King's Indian, orthodox, 7...Nbd7, 8.Re135135.6%56.0%
C04French, Tarrasch, Guimard main line35030.0%59.6%
C59Two knights defence, Steinitz variation34529.3%48.0%
A87Dutch, Leningrad, main variation34440.1%55.2%
D32QGD, Tarrasch defence34446.8%53.6%
C02French, advance, Wade variation34339.4%57.3%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation34334.7%51.5%
A65Benoni, 6.e434128.4%56.5%
D00Queen's pawn, Chigorin variation34134.0%51.6%
B15Caro-Kann, Tartakower (Nimzovich) variation34040.9%55.4%
D56QGD, Lasker defence34046.2%53.7%
A18English, Mikenas-Carls, Flohr variation33940.1%58.7%
C63Ruy Lopez, Schliemann defence33843.5%57.8%
E17Queen's Indian, anti-Queen's Indian system33738.0%52.5%
B06Robatsch defence, Two knights variation33633.9%60.4%
C18French, Winawer, classical variation33533.1%58.1%
C49Four knights, symmetrical, Metger unpin33336.0%51.1%
B98Sicilian, Najdorf variation33230.1%57.5%
A26English, Botvinnik system32937.1%52.3%
D23QGA, Mannheim variation32846.6%52.6%
D30QGD Slav32843.0%54.1%
E88King's Indian, Saemisch, orthodox, 7.d5 c632831.7%57.6%
B75Sicilian, dragon, Yugoslav attack32531.1%57.7%
B76Sicilian, dragon, Yugoslav attack, 7...O-O32534.5%52.9%
C44Ponziani opening32233.9%45.2%
B15Caro-Kann, Gurgenidze system32138.3%58.1%
A42Pterodactyl defence32036.9%63.8%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation32042.5%63.8%
E10Blumenfeld counter-gambit31941.4%55.2%
B14Caro-Kann, Panov-Botvinnik attack, 5...g631850.0%53.3%
E66King's Indian, fianchetto, Yugoslav Panno31834.6%56.9%
C70Ruy Lopez, Cozio defence deferred31744.8%52.7%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation31341.2%58.9%
A26English, closed system31237.2%51.6%
B44Sicilian defence31243.9%52.1%
B09Pirc, Austrian attack, 6.Be331131.8%58.4%
A01Nimzovich-Larsen attack, Indian variation30934.6%48.7%
A56Czech Benoni defence30926.9%67.5%
D29QGA, classical, 8...Bb730941.4%47.9%
D35QGD, exchange, Saemisch variation30846.8%54.2%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation30636.3%61.3%
C52Evans gambit30538.4%46.4%
D47QGD semi-Slav, neo-Meran (Lundin variation)30547.5%54.6%
B07Pirc, Sveshnikov system30435.5%52.6%
B02Alekhine's defence, Two pawns' (Lasker's) attack30342.9%54.5%
C60Ruy Lopez, Cozio defence30342.6%51.3%
D71Neo-Gruenfeld, 5.cd30147.5%56.6%
B00Owen defence30034.0%61.7%
C44Scotch gambit, Dubois-Reti defence30041.7%51.5%
E91King's Indian, Kazakh variation30036.7%56.0%
D90Gruenfeld, Flohr variation29937.8%56.0%
A84Dutch defence, Rubinstein variation29835.6%58.4%
E92King's Indian, Andersson variation29854.4%49.3%
E36Nimzo-Indian, classical, Noa variation, 5.a329643.9%53.0%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation29533.6%58.5%
E25Nimzo-Indian, Saemisch, Keres variation29346.1%54.1%
D15QGD Slav, Schlechter variation29143.0%59.3%
E62King's Indian, fianchetto, Larsen system29040.7%62.4%
C26Vienna game28743.9%54.0%
C42Petrov's defence28643.0%53.3%
C69Ruy Lopez, exchange variation, Alapin gambit28642.0%51.0%
E15Queen's Indian, 4.g3 Bb728439.8%54.0%
C62Ruy Lopez, old Steinitz defence28239.4%54.8%
D93Gruenfeld with Bf4 e328250.0%52.3%
D18QGD Slav, Dutch variation28140.9%60.3%
D21QGA, 3.Nf328140.9%57.5%
E87King's Indian, Saemisch, orthodox, 7.d528126.7%57.8%
D36QGD, exchange, positional line, 6.Qc227743.0%52.9%
E74King's Indian, Averbakh, 6...c527736.8%56.0%
C13French, Albin-Alekhine-Chatard attack27530.2%55.1%
B36Sicilian, accelerated fianchetto, Gurgenidze variation27444.2%60.0%
C25Vienna game27437.2%59.5%
C36KGA, Abbazia defence, modern variation27342.1%44.5%
B02Alekhine's defence, Saemisch attack27138.0%49.6%
D26QGA, 4...e627045.2%52.6%
A09Reti accepted26939.4%53.2%
B25Sicilian, closed26937.5%49.3%
C41Philidor's defence26936.8%60.4%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation26942.4%57.6%
A13English, Romanishin gambit26740.8%56.4%
A80Dutch, Krejcik gambit26734.5%53.9%
B42Sicilian, Kan, Swiss cheese variation26735.6%61.2%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f426739.3%54.1%
C64Ruy Lopez, classical defence, 4.c326741.9%55.8%
C42Petrov three knights game26538.1%57.2%
D42QGD, Semi-Tarrasch, 7.Bd326543.4%55.7%
A08Reti, King's Indian attack, French variation26437.1%48.9%
C87Ruy Lopez, closed, Averbach variation26440.9%59.8%
D10QGD Slav defence, Alekhine variation26238.9%55.0%
D31QGD, semi-Slav, Noteboom variation26237.8%51.7%
A01Nimzovich-Larsen attack, English variation26133.3%51.1%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)25741.2%54.5%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation25739.3%54.3%
D98Gruenfeld, Russian, Smyslov variation25741.2%60.3%
A16English, Anglo-Gruenfeld defense25442.5%53.5%
B04Alekhine's defence, modern variation25036.0%60.8%
D66QGD, Orthodox defence, Bd3 line25047.6%59.4%
D96Gruenfeld, Russian variation24842.7%54.8%
C00French, Two knights variation24738.1%51.8%
D22QGA, Alekhine defence24740.5%54.7%
B02Alekhine's defence, Scandinavian variation24641.5%52.8%
B03Alekhine's defence, four pawns attack24631.3%65.2%
C48Four knights, Spanish variation24651.2%56.5%
A96Dutch, classical variation24437.3%59.6%
A17English, Queens Indian formation24236.8%60.5%
B07Pirc, 150 attack24237.2%60.7%
D61QGD, Orthodox defence, Rubinstein variation24245.9%52.3%
B57Sicilian, Sozin, not Scheveningen24143.6%55.8%
A35English, symmetrical variation23835.7%51.5%
E62King's Indian, fianchetto with ...Nc623833.2%54.8%
A95Dutch, stonewall with Nc323630.9%58.7%
B32Sicilian, Flohr variation23633.1%60.2%
C64Ruy Lopez, classical (Cordel) defence23641.9%53.6%
B32Sicilian, Labourdonnais-Loewenthal variation23540.9%59.1%
A67Benoni, Taimanov variation23426.5%63.2%
B33Sicilian, Pelikan, Bird variation23437.6%62.8%
A54Old Indian, Ukrainian variation, 4.Nf323236.6%57.5%
E31Nimzo-Indian, Leningrad, main line23131.6%51.3%
C00French, Labourdonnais variation23031.3%45.2%
D63QGD, Orthodox defence, 7.Rc123037.8%57.6%
E09Catalan, closed, main line23033.9%61.3%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation22943.2%58.7%
B44Sicilian, Szen, hedgehog variation22839.5%50.9%
E76King's Indian, Four pawns attack22838.2%59.4%
C44Ponziani, Caro variation22744.9%49.3%
E83King's Indian, Saemisch, Panno formation22741.0%57.0%
C50King's pawn game22635.8%60.0%
C86Ruy Lopez, Worrall attack, sharp line22638.1%53.1%
D16QGD Slav, Steiner variation22637.2%62.8%
A12English, Caro-Kann defensive system22437.1%48.4%
B12Caro-Kann defence22435.3%53.8%
B15Caro-Kann, Forgacs variation22441.5%55.6%
B15Caro-Kann defence22332.3%52.0%
E16Queen's Indian, Riumin variation22339.5%56.1%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation22349.8%56.3%
A17English opening22138.5%52.7%
D19QGD Slav, Dutch variation, main line22140.7%56.6%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O22143.9%56.8%
C61Ruy Lopez, Bird's defence21641.2%58.6%
D70Neo-Gruenfeld defence21639.4%55.3%
E08Catalan, closed, Qc2 & b321643.5%51.4%
E13Queen's Indian, 4.Nc3, main line21634.7%53.0%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation21535.3%61.4%
B58Sicilian, classical21546.5%47.0%
C22Centre game, Paulsen attack21538.1%50.7%
D35QGD, Harrwitz attack21553.0%55.3%
B41Sicilian, Kan variation21341.8%55.6%
C89Ruy Lopez, Marshall, main line, 12.d2d421342.3%62.9%
C16French, Winawer, Petrosian variation21232.1%56.1%
C29Vienna gambit21239.6%45.8%
D00Blackmar gambit21240.1%40.8%
C96Ruy Lopez, closed, Keres (...Nd7) defence21137.4%65.6%
D14QGD Slav, exchange, Trifunovic variation21149.3%52.6%
C51Evans gambit, Stone-Ware variation21033.8%49.8%
C77Ruy Lopez, Morphy defence20839.4%56.3%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd20841.8%60.8%
E49Nimzo-Indian, 4.e3, Botvinnik system20644.7%56.8%
C12French, MacCutcheon, Lasker variation20527.8%59.3%
D24QGA, 4.Nc320541.0%50.7%
A50Queen's Indian accelerated20347.8%57.9%
B77Sicilian, dragon, Yugoslav attack, 9...Bd720341.9%55.4%
E94King's Indian, orthodox, Donner variation20235.1%60.1%
A40Queen's pawn, English defence20142.8%60.7%
A45Blackmar-Diemer gambit20128.4%51.0%
D28QGA, classical, 7...b520151.7%56.2%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit20040.0%57.5%
C43Petrov, modern attack, main line20047.0%58.5%
C42Petrov, Kaufmann attack19948.7%50.5%
A61Benoni, Uhlmann variation19822.2%39.9%
C49Four knights, symmetrical variation19742.6%55.3%
B80Sicilian, Scheveningen, fianchetto variation19634.2%51.3%
C58Two knights defence19535.9%56.4%
D72Neo-Gruenfeld, 5.cd, main line19533.8%60.5%
C59Two knights defence19238.0%49.2%
B86Sicilian, Sozin attack19142.9%52.9%
C82Ruy Lopez, open, St. Petersburg variation19141.4%65.7%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d519142.4%51.0%
C44Scotch, Goering gambit19044.7%57.1%
A07Reti, King's Indian attack (with ...c5)18942.9%48.4%
C50Giuoco Pianissimo, Canal variation18843.1%52.9%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd518848.9%46.8%
A18English, Mikenas-Carls variation18737.4%57.8%
C15French, Winawer, Alekhine (Maroczy) gambit18738.5%55.1%
D05Colle system18747.1%54.5%
A00Grob's attack18643.5%34.7%
C48Four knights, Spanish, classical defence18645.2%50.0%
E00Neo-Indian (Seirawan) attack18431.5%51.6%
E65King's Indian, fianchetto, Yugoslav, 7.O-O18452.7%52.4%
B09Pirc, Austrian attack18340.4%61.2%
E24Nimzo-Indian, Saemisch variation18348.1%48.6%
C65Ruy Lopez, Berlin defence, 4.O-O18241.2%58.5%
D41QGD, Semi-Tarrasch with e318246.7%57.4%
A52Budapest, Adler variation18144.8%53.3%
A86Dutch, Leningrad variation18133.7%58.3%
C83Ruy Lopez, open, classical defence18147.5%60.8%
C54Giuoco Piano18053.3%52.8%
D34QGD, Tarrasch, Prague variation, 7...Be718042.2%56.1%
C23Bishop's opening17936.9%54.2%
C50Hungarian defence17940.2%49.7%
C00French, Reti (Spielmann) variation17839.3%50.6%
C00French, Schlechter variation17842.1%49.2%
D16QGD Slav accepted, Alapin variation17738.4%65.5%
A30English, symmetrical, hedgehog, flexible formation17643.2%54.5%
C46Four knights, Italian variation17642.0%47.2%
C89Ruy Lopez, Marshall counter-attack, 11...c617646.0%56.0%
A16English, Anglo-Gruenfeld, Czech defense17433.9%63.5%
D46QGD semi-Slav, Romih variation17436.8%63.8%
D49QGD semi-Slav, Meran, Blumenfeld variation17446.6%51.4%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation17435.1%57.2%
C84Ruy Lopez, closed, centre attack17348.6%46.2%
D63QGD, Orthodox defence, Swiss, Karlsbad variation17343.4%53.5%
B12Caro-Kann, 3.Nd217239.5%61.0%
C51Evans gambit declined, 5.a417242.4%46.2%
E76King's Indian, Four pawns attack, dynamic line17238.4%52.3%
D31QGD, Janowski variation17041.8%56.2%
D99Gruenfeld defence, Smyslov, main line17041.2%58.2%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence16929.0%56.5%
A00Mieses opening16732.3%50.9%
D08QGD, Albin counter-gambit16741.9%57.5%
A24English, Bremen system with ...g616639.8%48.2%
D10QGD Slav, Winawer counter-gambit16633.1%55.1%
D15QGD Slav, 5.e3 (Alekhine variation)16630.7%55.1%
D46QGD semi-Slav, Bogolyubov variation16642.8%56.3%
C93Ruy Lopez, closed, Smyslov defence16540.6%57.9%
D44QGD semi-Slav, anti-Meran, Lilienthal variation16530.3%66.7%
D52QGD, Cambridge Springs defence, Rubinstein variation16538.8%54.5%
A20English, Nimzovich, Flohr variation16436.6%46.3%
C21Centre game16444.5%57.6%
A02Bird, From gambit16336.2%50.6%
C11French defence16239.5%56.2%
C75Ruy Lopez, modern Steinitz defence16243.2%54.3%
D94Gruenfeld, Smyslov defence16146.0%57.8%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d516151.6%50.0%
C82Ruy Lopez, open, Dilworth variation16041.9%60.9%
A36English, symmetrical, Botvinnik system15935.8%51.3%
D26QGA, classical variation, 6.O-O15947.2%58.2%
A16English, Anglo-Gruenfeld, Smyslov defense15832.3%56.0%
D06QGD, Marshall defence15843.7%58.5%
D24QGA, Bogolyubov variation15848.1%56.3%
D94Gruenfeld, Opovcensky variation15842.4%54.1%
C23Bishop's opening, Philidor counter-attack15756.1%48.4%
C42Petrov, Paulsen attack15740.8%52.2%
D49QGD semi-Slav, Meran, Sozin variation15744.6%45.9%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)15650.0%56.4%
B01Scandinavian gambit15541.9%53.2%
C19French, Winawer, advance, Smyslov variation15525.8%61.3%
C77Ruy Lopez, four knights (Tarrasch) variation15547.1%55.8%
A38English, symmetrical, main line with d315446.8%53.2%
A58Benko gambit, fianchetto variation15444.8%60.7%
B60Sicilian, Richter-Rauzer, Larsen variation15430.5%59.4%
C53Giuoco Piano, Bird's attack15429.9%49.4%
E20Nimzo-Indian defence15450.0%52.9%
D44QGD semi-Slav, 5.Bg5 dc15346.4%49.3%
B23Sicilian, Grand Prix attack, Schofman variation15240.8%52.6%
B23Sicilian, closed, Korchnoi variation15248.7%52.0%
B06Robatsch defence, three pawns attack15129.1%60.9%
A53Old Indian, Janowski variation15034.0%55.7%
B04Alekhine's defence, modern, Schmid variation15038.7%60.7%
B63Sicilian, Richter-Rauzer, Rauzer attack14936.9%57.4%
C48Four knights, Rubinstein counter-gambit, exchange variation14965.8%52.3%
E02Catalan, open, 5.Qa414945.6%58.4%
D52QGD14841.2%59.1%
B80Sicilian, Scheveningen, English variation14732.0%53.4%
C46Three knights game14738.1%54.4%
A44Semi-Benoni (`blockade variation')14628.1%59.2%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg714646.6%55.5%
C73Ruy Lopez, modern Steinitz defence, Richter variation14651.4%53.8%
C81Ruy Lopez, open, Howell attack14650.7%52.1%
E25Nimzo-Indian, Saemisch variation14642.5%52.1%
C74Ruy Lopez, Siesta, Kopayev variation14532.4%55.5%
E22Nimzo-Indian, Spielmann variation14545.5%51.7%
A41Robatsch defence, Rossolimo variation14436.8%50.3%
A60Benoni defence14425.0%62.5%
D09QGD, Albin counter-gambit, 5.g314443.8%56.6%
D15QGD Slav, Suechting variation14430.6%59.0%
A83Dutch, Staunton gambit, Staunton's line14337.8%50.3%
E46Nimzo-Indian, Simagin variation14341.3%50.0%
C34KGA, Fischer defence14230.3%46.1%
C42Petrov, classical attack, close variation14246.5%59.2%
E40Nimzo-Indian, 4.e314230.3%58.8%
A00Polish, Outflank variation14144.0%48.9%
B05Alekhine's defence, modern, Flohr variation14037.1%62.9%
E15Queen's Indian, Rubinstein variation14036.4%58.9%
C12French, MacCutcheon, Janowski variation13937.4%57.6%
C56Two knights defence13943.9%49.3%
C98Ruy Lopez, closed, Chigorin, 12...Nc613831.9%61.6%
B13Caro-Kann, exchange, Rubinstein variation13736.5%53.3%
D31QGD, semi-Slav, Abrahams variation13735.8%44.2%
D55QGD, Neo-orthodox variation, 7.Bh413744.5%58.0%
B27Sicilian, Katalimov variation13644.1%61.0%
A99Dutch, Ilyin-Genevsky variation with b313438.1%62.3%
B85Sicilian, Scheveningen, classical13441.0%51.9%
A21English, Troeger defence13328.6%53.4%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation13338.3%64.3%
D11QGD Slav, Breyer variation13345.1%59.4%
A64Benoni, fianchetto, 11...Re813241.7%45.1%
A77Benoni, classical, 9...Re8, 10.Nd213227.3%68.2%
D55QGD, 6.Nf313135.9%57.6%
E28Nimzo-Indian, Saemisch variation13130.5%54.2%
B59Sicilian, Boleslavsky variation, 7.Nb313046.9%51.9%
A04Reti, Pirc-Lisitsin gambit12927.9%49.6%
C27Vienna game12944.2%54.7%
A06Santasiere's folly12840.6%42.2%
C07French, Tarrasch, Eliskases variation12846.1%53.5%
C21Danish gambit12740.9%48.8%
D06QGD, Grau (Sahovic) defence12736.2%61.4%
D25QGA, 4.e312739.4%57.5%
A12English, London defensive system12642.1%52.0%
A13English, Wimpey system12642.1%51.2%
B98Sicilian, Najdorf, 7...Be712632.5%54.4%
C00St. George defence12649.2%63.5%
C12French, MacCutcheon variation12540.8%49.2%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation12543.2%57.6%
E10Blumenfeld counter-gambit accepted12540.8%53.2%
D97Gruenfeld, Russian, Byrne (Simagin) variation12437.9%59.3%
A43Old Benoni, Franco-Benoni defence12339.8%58.9%
D22QGA, Haberditz variation12357.7%52.4%
D86Gruenfeld, exchange, Simagin's improved variation12339.8%52.4%
E70King's Indian, accelerated Averbakh system12334.1%56.1%
C92Ruy Lopez, closed, Kholmov variation12230.3%66.0%
D15QGD Slav, Tolush-Geller gambit12227.9%41.0%
C30King's gambit12142.1%60.7%
A28English, Nenarokov variation12040.0%51.7%
A54Old Indian, Ukrainian variation12045.8%57.9%
A93Dutch, stonewall, Botwinnik variation12035.0%61.7%
B03Alekhine's defence, four pawns attack, fianchetto variation12032.5%59.6%
A07Reti, King's Indian attack, Pachman system11937.0%52.9%
A25English, closed system (without ...d6)11927.7%55.0%
A42Modern defence, Averbakh system, Kotov variation11924.4%66.0%
A82Dutch, Staunton gambit11936.1%36.6%
A59Benko gambit, main line11841.5%66.5%
B01Scandinavian defence, Lasker variation11833.1%64.0%
C11French, Steinitz, Gledhill attack11833.1%54.7%
C42Petrov, classical attack, Mason variation11842.4%57.6%
A36English, symmetrical variation11735.9%53.8%
B03Alekhine's defence, four pawns attack, 7.Be311736.8%67.9%
B82Sicilian, Scheveningen, Tal variation11735.9%62.4%
B00KP, Nimzovich defence, Bogolyubov variation11629.3%60.3%
A00Benko's opening, reversed Alekhine11542.6%48.3%
D59QGD, Tartakower variation11446.5%46.1%
E77King's Indian, Four pawns attack11431.6%57.9%
C33KGA, bishop's gambit, Jaenisch variation11341.6%48.2%
C71Ruy Lopez, modern Steinitz defence11242.9%55.4%
D48QGD semi-Slav, Meran, old main line11235.7%52.7%
E92King's Indian, Petrosian system11228.6%51.8%
B73Sicilian, dragon, classical, Richter variation11145.9%57.2%
A03Bird's opening, Lasker variation11029.1%46.4%
E82King's Indian, Saemisch, double fianchetto variation11034.5%57.3%
B03Alekhine's defence10933.0%61.5%
C47Four knights, Belgrade gambit10946.8%54.6%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc310951.4%58.7%
A91Dutch defence10833.3%52.8%
B77Sicilian, dragon, Yugoslav attack, 9.Bc410833.3%50.9%
C44Ponziani counter-gambit10843.5%57.9%
A86Dutch with c4 & g310738.3%64.0%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be710729.9%57.0%
D63QGD, Orthodox defence10747.7%59.3%
C73Ruy Lopez, modern Steinitz defence, Alapin variation10636.8%51.4%
E05Catalan, open, classical line10654.7%53.8%
D60QGD, Orthodox defence10436.5%55.8%
E10Blumenfeld counter-gambit, Spielmann variation10433.7%58.2%
E53Nimzo-Indian, 4.e3, Keres variation10436.5%47.1%
C66Ruy Lopez, Berlin defence, hedgehog variation10351.5%58.7%
E32Nimzo-Indian, classical, Adorjan gambit10343.7%51.0%
E33Nimzo-Indian, classical, 4...Nc610347.6%59.7%
E64King's Indian, fianchetto, Yugoslav system10337.9%59.7%
A06Reti, old Indian attack10228.4%48.5%
C29Vienna gambit, Breyer variation10233.3%52.9%
E25Nimzo-Indian, Saemisch, Romanovsky variation10250.0%51.5%
E67King's Indian, fianchetto with ...Nd710136.6%56.9%
A76Benoni, classical, 9...Re810041.0%63.5%
B10Caro-Kann, Goldman (Spielmann) variation10039.0%50.5%
B72Sicilian, dragon, 6.Be310036.0%54.0%
C02French, advance, Milner-Barry gambit10034.0%47.0%
C44Ponziani, Leonhardt variation10035.0%48.5%
B72Sicilian, dragon, classical attack9938.4%52.5%
B96Sicilian, Najdorf, Polugayevsky variation9938.4%52.5%
C46Four knights, Gunsberg variation9946.5%50.5%
A71Benoni, classical, 8.Bg59829.6%56.6%
C02French, advance, Nimzovich system9831.6%45.4%
C68Ruy Lopez, exchange, Keres variation9851.0%52.0%
C70Ruy Lopez, Classical defence deferred9744.3%60.3%
E40Nimzo-Indian, 4.e3, Taimanov variation9736.1%63.4%
B13Caro-Kann, Panov-Botvinnik, normal variation9652.1%57.3%
C66Ruy Lopez, Berlin defence, 4.O-O, d69649.0%55.7%
D15QGD Slav accepted9642.7%51.6%
D56QGD, Lasker defence, Teichmann variation9651.0%49.5%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)9644.8%56.8%
D25QGA, Smyslov variation9553.7%58.4%
D50QGD, 4.Bg59544.2%53.7%
D63QGD, Orthodox defence, Swiss (Henneberger) variation9443.6%62.2%
E08Catalan, closed, 7.Qc29439.4%61.2%
C82Ruy Lopez, open, Italian variation9350.5%65.1%
D07QGD, Chigorin defence, Janowski variation9334.4%63.4%
B18Caro-Kann, classical, Flohr variation9254.3%50.0%
C14French, classical, Alapin variation9245.7%55.4%
C25Vienna, Paulsen variation9232.6%58.7%
D12QGD Slav, exchange variation9237.0%50.0%
D94Gruenfeld, Makogonov variation9246.7%47.3%
E90King's Indian, Larsen variation9238.0%61.4%
D35QGD, 3...Nf69138.5%48.9%
B02Alekhine's defence, Maroczy variation9035.6%57.8%
B83Sicilian, modern Scheveningen, main line with Nb39036.7%56.1%
C33KGA, bishop's gambit9034.4%52.8%
A63Benoni, fianchetto, 9...Nbd78933.7%67.4%
A16English, Anglo-Gruenfeld defense, Korchnoi variation8836.4%58.0%
C49Four knights, double Ruy Lopez8846.6%61.9%
D51QGD, 5...c68855.7%52.8%
B09Pirc, Austrian attack, 6.e58744.8%56.9%
C51Evans gambit, Cordel variation8749.4%46.6%
E10Dzindzikhashvili defence8752.9%58.6%
E61King's Indian, Smyslov system8737.9%54.6%
A12English, Caro-Kann defensive system, Bogolyubov variation8646.5%53.5%
A97Dutch, Ilyin-Genevsky, Winter variation8637.2%65.1%
C13French, Albin-Alekhine-Chatard attack, Breyer variation8638.4%63.4%
C40Latvian counter-gambit8631.4%61.0%
C70Ruy Lopez, Caro variation8641.9%59.3%
E26Nimzo-Indian, Saemisch variation8640.7%57.6%
E29Nimzo-Indian, Saemisch, main line8638.4%56.4%
A41Modern defence8531.8%58.2%
B74Sicilian, dragon, classical, Reti-Tartakower variation8547.1%55.3%
C44King's pawn game8537.6%51.8%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation8538.8%55.9%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc48560.0%42.9%
E93King's Indian, Petrosian system, main line8535.3%50.6%
A92Dutch, stonewall variation8447.6%58.3%
C12French, MacCutcheon, Dr. Olland (Dutch) variation8433.3%60.7%
D20QGA, Linares variation8434.5%62.5%
E62King's Indian, fianchetto, Simagin variation8435.7%64.3%
A28English, four knights, Stean variation8342.2%59.6%
A36English, symmetrical, Botvinnik system reversed8341.0%54.2%
A57Benko gambit, Zaitsev system8341.0%47.0%
A69Benoni, four pawns attack, main line8338.6%47.0%
C67Ruy Lopez, open Berlin defence, l'Hermet variation8356.6%50.0%
A47Queen's Indian, Marienbad system8237.8%54.3%
B84Sicilian, Scheveningen, classical, Nd7 system8235.4%50.6%
C68Ruy Lopez, exchange variation8240.2%53.0%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf68132.1%60.5%
C39KGA, Kieseritsky, Kolisch defence8145.7%45.1%
D33QGD, Tarrasch, Prague variation8137.0%53.1%
E83King's Indian, Saemisch, 6...Nc68127.2%43.2%
B42Sicilian, Kan, Gipslis variation8038.8%63.1%
C86Ruy Lopez, Worrall attack, solid line8040.0%47.5%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
A68Benoni, four pawns attack7932.9%58.2%
C30KGD, classical variation7929.1%52.5%
C40Gunderam defence7929.1%67.7%
E81King's Indian, Saemisch, Byrne variation7939.2%53.8%
A13English, Kurajica defence7834.6%57.1%
B71Sicilian, dragon, Levenfish variation7834.6%55.8%
C65Ruy Lopez, Berlin defence, Nyholm attack7755.8%53.9%
C90Ruy Lopez, closed, Suetin variation7735.1%56.5%
D44QGD semi-Slav, Botvinnik system (anti-Meran)7737.7%56.5%
D51QGD, 4.Bg5 Nbd77741.6%53.2%
D87Gruenfeld, exchange, Seville variation7754.5%62.3%
A12English, Capablanca's variation7634.2%47.4%
B62Sicilian, Richter-Rauzer, Keres variation7634.2%50.0%
D27QGA, classical, Geller variation7652.6%53.9%
E75King's Indian, Averbakh, main line7623.7%60.5%
A83Dutch, Staunton gambit, Chigorin variation7532.0%52.0%
D95Gruenfeld, Botvinnik variation7544.0%51.3%
C67Ruy Lopez, open Berlin defence, 5...Be77437.8%52.7%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)7443.2%44.6%
D25QGA, Flohr variation7431.1%66.9%
E30Nimzo-Indian, Leningrad, ...b5 gambit7432.4%47.3%
A92Dutch defence7347.9%59.6%
C64Ruy Lopez, Cordel gambit7342.5%56.8%
D16QGD Slav, Smyslov variation7332.9%58.9%
E46Nimzo-Indian, 4.e3 O-O7334.2%56.8%
E85King's Indian, Saemisch, orthodox variation7337.0%52.7%
C03French, Tarrasch, Guimard variation7230.6%65.3%
C52Evans gambit, Tartakower attack7245.8%43.8%
D68QGD, Orthodox defence, classical variation7248.6%56.3%
E07Catalan, closed, Botvinnik variation7243.1%43.8%
D60QGD, Orthodox defence, Botvinnik variation7133.8%50.7%
E07Catalan, closed, 6...Nbd77136.6%52.1%
A20English, Nimzovich variation7038.6%59.3%
D89Gruenfeld, Spassky variation, main line, 13.Bd37038.6%49.3%
D32QGD, Tarrasch, von Hennig-Schara gambit6943.5%62.3%
E62King's Indian, fianchetto variation6934.8%52.2%
C35KGA, Cunningham defence6835.3%50.0%
C49Four knights6852.9%48.5%
C57Two knights defence, Fegatello attack6826.5%52.9%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd76855.9%51.5%
B03Alekhine's defence, four pawns attack, Trifunovic variation6735.8%68.7%
C55Two knights defence6744.8%52.2%
C74Ruy Lopez, modern Steinitz defence6734.3%56.0%
C82Ruy Lopez, open, Motzko attack6746.3%59.0%
C00French, Pelikan variation6636.4%53.0%
C20KP, Indian opening6637.9%44.7%
C30KGD, classical, 4.c36532.3%65.4%
C42Petrov, Cochrane gambit6518.5%32.3%
C48Four knights, Rubinstein counter-gambit, Henneberger variation6543.1%52.3%
A40Polish defence6442.2%53.9%
A72Benoni, classical without 9.O-O6445.3%61.7%
B20Sicilian, wing gambit, Marshall variation6431.3%54.7%
B53Sicilian, Chekhover, Zaitsev variation6426.6%55.5%
C70Ruy Lopez6440.6%56.3%
D28QGA, classical, 7.Qe26450.0%60.9%
D47QGD semi-Slav, 7.Bc46437.5%53.1%
D70Neo-Gruenfeld (Kemeri) defence6443.8%53.1%
C12French, MacCutcheon, Chigorin variation6338.1%47.6%
C31KGD, Nimzovich counter-gambit6334.9%50.8%
C42Petrov, Italian variation6327.0%50.0%
C50Giuoco Piano, four knights variation6336.5%53.2%
E17Queen's Indian, Euwe variation6352.4%54.8%
A17English, Queens Indian, Romanishin variation6227.4%60.5%
A52Budapest, Alekhine, Abonyi variation6229.0%62.9%
A98Dutch, Ilyin-Genevsky variation with Qc26232.3%54.8%
C39KGA, Kieseritsky, Berlin defence6237.1%42.7%
D26QGA, classical, Steinitz variation6256.5%65.3%
D49QGD semi-Slav, Meran, Rabinovich variation6225.8%43.5%
D84Gruenfeld, Gruenfeld gambit accepted6250.0%55.6%
A05Reti, King's Indian attack, Reti-Smyslov variation6137.7%54.9%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation6139.3%67.2%
C66Ruy Lopez, closed Berlin defence, Wolf variation6157.4%56.6%
C94Ruy Lopez, closed, Breyer defence6139.3%57.4%
E73King's Indian, Semi-Averbakh system6142.6%55.7%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack6124.6%68.0%
B01Scandinavian, Icelandic gambit6043.3%55.0%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation6038.3%50.8%
C46Three knights, Steinitz variation6041.7%54.2%
C58Two knights defence, Bogolyubov variation6031.7%45.8%
A51Budapest, Fajarowicz variation5933.9%62.7%
B20Sicilian, wing gambit5950.8%40.7%
C26Vienna, Falkbeer variation5945.8%58.5%
C41Philidor, Nimzovich, Larobok variation5947.5%33.9%
C67Ruy Lopez, Berlin defence, Cordel variation5935.6%58.5%
D00Queen's pawn, stonewall attack5937.3%44.1%
A79Benoni, classical, 11.f35831.0%60.3%
B06Robatsch defence, Gurgenidze variation5837.9%62.1%
B22Sicilian, 2.c3, Heidenfeld variation5825.9%45.7%
C31KGD, Falkbeer counter-gambit5848.3%53.4%
C70Ruy Lopez, fianchetto defence deferred5855.2%53.4%
E72King's Indian with e4 & g35834.5%56.9%
A73Benoni, classical, 9.O-O5728.1%59.6%
C05French, Tarrasch, Botvinnik variation5733.3%64.0%
C45Scotch, Romanishin variation5743.9%60.5%
C49Four knights, symmetrical, Maroczy system5745.6%50.9%
C80Ruy Lopez, open (Tarrasch) defence5745.6%59.6%
C17French, Winawer, advance variation5641.1%59.8%
C23Bishop's opening, Classical variation5639.3%53.6%
C44Ponziani, Fraser defence5639.3%66.1%
C57Two knights defence, Wilkes Barre (Traxler) variation5637.5%56.3%
D33QGD, Tarrasch, Folkestone (Swedish) variation5650.0%60.7%
A75Benoni, classical with ...a6 and 10...Bg45527.3%68.2%
A90Dutch-Indian, Alekhine variation5538.2%60.9%
B56Sicilian, Venice attack5536.4%65.5%
C17French, Winawer, advance, Russian variation5538.2%53.6%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence5547.3%38.2%
C43Petrov, modern attack, Trifunovic variation5545.5%48.2%
C66Ruy Lopez, closed Berlin defence, Showalter variation5547.3%56.4%
D86Gruenfeld, exchange, Simagin's lesser variation5541.8%59.1%
A81Dutch defence, Blackburne variation5431.5%52.8%
C24Bishop's opening, Urusov gambit5431.5%36.1%
C49Four knights, Nimzovich (Paulsen) variation5457.4%58.3%
E60King's Indian, Anti-Gruenfeld5431.5%60.2%
A94Dutch, stonewall with Ba35350.9%57.5%
A97Dutch, Ilyin-Genevsky variation5335.8%55.7%
C44Scotch gambit, Benima defence5335.8%55.7%
D57QGD, Lasker defence, main line5356.6%50.9%
E27Nimzo-Indian, Saemisch variation5347.2%44.3%
A28English, Bradley Beach variation5221.2%37.5%
B55Sicilian, Prins variation, Venice attack5246.2%51.9%
C33KGA, bishop's gambit, Bledow variation5226.9%30.8%
C36KGA, Abbazia defence (classical defence, modern defence[!])5238.5%67.3%
C44Scotch gambit5236.5%62.5%
C77Ruy Lopez, Morphy defence, Duras variation5240.4%56.7%
C78Ruy Lopez, ...b5 & ...d65236.5%52.9%
A00Grob, Fritz gambit5143.1%27.5%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)5131.4%51.0%
A78Benoni, classical with ...Re8 and ...Na65038.0%61.0%
C15French, Winawer, Alekhine gambit, Kan variation5046.0%47.0%
C53Giuoco Piano, centre-holding variation5036.0%62.0%
D54QGD, Anti-neo-orthodox variation5044.0%50.0%
A56Czech Benoni, King's Indian system4916.3%67.3%
B80Sicilian, Scheveningen, Vitolins variation4949.0%51.0%
C41Philidor, Nimzovich variation4946.9%56.1%
D67QGD, Orthodox defence, Bd3 line, 11.O-O4936.7%65.3%
B12Caro-Kann, advance, Short variation4833.3%52.1%
B40Sicilian, Pin, Koch variation4825.0%79.2%
C49Four knights, symmetrical, Pillsbury variation4856.3%44.8%
C53Giuoco Piano, close variation4837.5%60.4%
C95Ruy Lopez, closed, Breyer, Gligoric variation4845.8%54.2%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)4854.2%58.3%
E24Nimzo-Indian, Saemisch, Botvinnik variation4835.4%40.6%
B04Alekhine's defence, modern, Keres variation4734.0%72.3%
D06QGD, symmetrical (Austrian) defence4748.9%58.5%
D53QGD, 4.Bg5 Be7, 5.e3 O-O4748.9%50.0%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc64740.4%52.1%
E96King's Indian, orthodox, 7...Nbd7, main line4738.3%59.6%
B58Sicilian, Boleslavsky, Louma variation4637.0%57.6%
B62Sicilian, Richter-Rauzer, 6...e64639.1%58.7%
C11French, Swiss variation4650.0%55.4%
C25Vienna gambit4630.4%56.5%
D60QGD, Orthodox defence, Rauzer variation4643.5%63.0%
C80Ruy Lopez, open, 6.d44537.8%45.6%
D52QGD, Cambridge Springs defence, 7.cd4537.8%54.4%
A12English, Torre defensive system4438.6%58.0%
B72Sicilian, dragon, classical, Amsterdam variation4425.0%46.6%
C51Evans gambit, 5...Be74436.4%59.1%
C52Evans gambit, compromised defence4420.5%73.9%
C88Ruy Lopez, closed, Balla variation4436.4%54.5%
B27Sicilian, Quinteros variation4337.2%60.5%
B98Sicilian, Najdorf, Browne variation4327.9%60.5%
C39KGA, Kieseritsky, Berlin defence, 6.Bc44334.9%36.0%
C67Ruy Lopez, Berlin defence, Minckwitz variation4348.8%61.6%
C83Ruy Lopez, open, 9...Be7, 10.Re14334.9%54.7%
E15Queen's Indian, Buerger variation4339.5%61.6%
A09Reti accepted, Keres variation4231.0%67.9%
C00French, Wing gambit4242.9%59.5%
C45Scotch, Steinitz variation4233.3%54.8%
C58Two knights defence, Colman variation4231.0%39.3%
A00Clemenz (Mead's, Basman's or de Klerk's) opening4136.6%40.2%
A43Old Benoni, Mujannah formation4139.0%65.9%
A59Benko gambit4143.9%63.4%
B12Caro-Kann, Edinburgh variation4146.3%57.3%
C41Philidor, Hanham variation4134.1%61.0%
D29QGA, classical, Smyslov variation4153.7%46.3%
B00St. George (Baker) defence4037.5%61.3%
C27Boden-Kieseritsky gambit4032.5%31.3%
C34KGA, Bonsch-Osmolovsky variation4045.0%55.0%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
E12Queen's Indian, 4.Nc3, Botvinnik variation4022.5%46.3%
E90King's Indian, Zinnowitz variation4045.0%57.5%
C01French, exchange, Svenonius variation3938.5%57.7%
C21Danish gambit, Soerensen defence3959.0%57.7%
C34KGA, Schallop defence3933.3%62.8%
C60Ruy Lopez (Spanish opening)3923.1%62.8%
D23Queen's gambit accepted3935.9%53.8%
D46QGD semi-Slav, 6.Bd33938.5%62.8%
A52Budapest defence3836.8%52.6%
B07Pirc, Holmov system3847.4%60.5%
B72Sicilian, dragon, classical, Grigoriev variation3844.7%46.1%
D52QGD, Cambridge Springs defence3842.1%47.4%
C14French, classical, Rubinstein variation3735.1%58.1%
C54Giuoco Piano, Moeller (Therkatz) attack3745.9%47.3%
C60Ruy Lopez, Cozio defence, Paulsen variation3727.0%70.3%
C90Ruy Lopez, closed, Lutikov variation3748.6%56.8%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation3756.8%55.4%
D97Gruenfeld, Russian variation with e43732.4%62.2%
E60Queen's pawn, Mengarini attack3735.1%60.8%
E73King's Indian, 5.Be23735.1%58.1%
A21English, Smyslov defence3630.6%59.7%
A25English, closed, Hort variation3636.1%54.2%
A40Beefeater defence3627.8%66.7%
C20KP, Patzer opening3627.8%33.3%
C41Philidor, Larsen variation3622.2%69.4%
C41Philidor, Nimzovich, Rellstab variation3641.7%65.3%
D52QGD, Cambridge Springs defence, Capablanca variation3636.1%59.7%
A92Dutch defence, Alekhine variation3540.0%62.9%
C43Petrov, modern (Steinitz) attack3545.7%60.0%
C45Scotch, Meitner variation3554.3%55.7%
C47Four knights, Scotch, Krause variation3537.1%64.3%
D30QGD, Capablanca variation3531.4%58.6%
A12English, New York (London) defensive system3452.9%44.1%
A45Paleface attack3435.3%47.1%
A80Dutch, Korchnoi attack3426.5%54.4%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation3438.2%48.5%
C15French, Winawer, fingerslip variation3438.2%33.8%
C30KGD, 2...Nf63426.5%66.2%
C51Evans gambit declined, Showalter variation3447.1%52.9%
B60Sicilian, Richter-Rauzer, Bondarevsky variation3354.5%60.6%
C34KGA, Becker defence3342.4%45.5%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit3253.1%48.4%
C57Two knights defence, Ulvestad variation3259.4%45.3%
C65Ruy Lopez, Berlin defence, Kaufmann variation3246.9%54.7%
E17Queen's Indian, 5.Bg2 Be73225.0%43.8%
B07Pirc, bayonet (Mariotti) attack3154.8%56.5%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3122.6%56.5%
C44Inverted Hanham3030.0%45.0%
C51Evans gambit declined3023.3%58.3%
D00Blackmar-Diemer gambit3020.0%40.0%
D08QGD, Albin counter-gambit, Alapin variation3050.0%61.7%
D21QGA, Alekhine defense, Borisenko-Furman variation3026.7%46.7%
D34QGD, Tarrasch, Reti variation3060.0%60.0%
D40QGD, Semi-Tarrasch defence, Pillsbury variation3036.7%58.3%
E89King's Indian, Saemisch, orthodox main line3033.3%60.0%
A02Bird, From gambit, Lasker variation2955.2%58.6%
A03Bird's opening, Williams gambit2937.9%63.8%
C33KGA, bishop's gambit, Steinitz defence2944.8%50.0%
C67Ruy Lopez, Berlin defence, Winawer attack2934.5%69.0%
E26Nimzo-Indian, Saemisch, O'Kelly variation2941.4%51.7%
E92King's Indian, classical variation2934.5%41.4%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)2846.4%55.4%
C13French, classical2842.9%42.9%
C37KGA, Blachly gambit2835.7%28.6%
C44Ponziani, Reti variation2832.1%58.9%
D00Blackmar-Diemer, Euwe defence2821.4%46.4%
D05Queen's pawn game, Zukertort variation2857.1%57.1%
E29Nimzo-Indian, Saemisch, Capablanca variation2839.3%41.1%
C55Two knights defence, Perreux variation2744.4%55.6%
C88Ruy Lopez, closed, 8.c32737.0%63.0%
D30QGD Slav, Semmering variation2729.6%51.9%
D83Gruenfeld, Gruenfeld gambit2748.1%61.1%
A40Queen's pawn, Charlick (Englund) gambit2642.3%59.6%
A44Old Benoni defence2638.5%61.5%
B85Sicilian, Scheveningen, classical, Maroczy system2634.6%55.8%
C12French, MacCutcheon, Grigoriev variation2650.0%55.8%
C20King's pawn game2634.6%48.1%
C74Ruy Lopez, modern Steinitz defence, siesta variation2638.5%50.0%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2646.2%42.3%
D32QGD, Tarrasch defence, 4.cd ed2638.5%50.0%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
A43Old Benoni, Schmid's system2520.0%58.0%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation2556.0%56.0%
C10French, Frere (Becker) variation2540.0%60.0%
C33KGA, bishop's gambit, Morphy variation2536.0%54.0%
C45Scotch, Horwitz attack2536.0%66.0%
C57Two knights defence, Fritz variation2556.0%48.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation2548.0%64.0%
D63QGD, Orthodox defence, Pillsbury attack2552.0%58.0%
D90Gruenfeld, Schlechter variation2532.0%40.0%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation2564.0%68.0%
E99King's Indian, orthodox, Aronin-Taimanov, main line2532.0%60.0%
A04Reti, Lisitsin gambit deferred2429.2%68.8%
A18English, Mikenas-Carls, Kevitz variation2429.2%47.9%
A25English, closed, Taimanov variation2412.5%64.6%
C13French, classical, Tartakower variation2437.5%47.9%
C33KGA, bishop's gambit, Bogolyubov variation2437.5%43.8%
C42Petrov, Damiano variation2441.7%50.0%
C82Ruy Lopez, open, Berlin variation2429.2%72.9%
C86Ruy Lopez, Worrall attack2454.2%56.3%
D15QGD Slav, Slav gambit2420.8%56.3%
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%
D44QGD semi-Slav, anti-Meran, Szabo variation2420.8%35.4%
E10Doery defence2445.8%56.3%
A80Dutch, Manhattan (Alapin, Ulvestad) variation2339.1%58.7%
B15Caro-Kann, Alekhine gambit2339.1%50.0%
B32Sicilian, Nimzovich variation2339.1%54.3%
B41Sicilian, Kan, Maroczy bind - Bronstein variation2330.4%32.6%
B74Sicilian, dragon, classical, Alekhine variation2347.8%67.4%
C25Vienna game, Max Lange defence2343.5%52.2%
C38King's knight's gambit2339.1%28.3%
D51QGD2365.2%63.0%
E51Nimzo-Indian, 4.e3, Ragozin variation2339.1%67.4%
E77King's Indian, Four pawns attack, 6.Be22356.5%54.3%
A06Tennison (Lemberg, Zukertort) gambit2254.5%40.9%
B00Reversed Grob (Borg/Basman defence/macho Grob)2222.7%75.0%
B72Sicilian, dragon, classical, Nottingham variation2245.5%54.5%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2250.0%47.7%
C35KGA, Cunningham, Euwe defence2227.3%54.5%
C40Latvian, Polerio variation2227.3%40.9%
C44Inverted Hungarian2245.5%59.1%
C49Four knights, symmetrical, Capablanca variation2259.1%61.4%
C55Two knights, Max Lange attack, Schlechter variation2250.0%52.3%
C96Ruy Lopez, closed (8...Na5)2254.5%63.6%
D01Richter-Veresov attack, Veresov variation2250.0%47.7%
A00Novosibirsk opening2133.3%50.0%
A74Benoni, classical, 9...a6, 10.a42142.9%73.8%
B24Sicilian, closed, Smyslov variation2133.3%54.8%
B44Sicilian, Szen variation, Dely-Kasparov gambit2161.9%59.5%
B50Sicilian, wing gambit deferred2123.8%35.7%
C12French, MacCutcheon, Bernstein variation2123.8%59.5%
C20Alapin's opening2128.6%61.9%
C30KGD, Keene's defence2142.9%69.0%
C41Philidor, Hanham, Schlechter variation2128.6%71.4%
C41Philidor, Hanham, Steiner variation2138.1%66.7%
C51Evans gambit, Morphy attack2142.9%54.8%
C53Giuoco Piano, LaBourdonnais variation2152.4%50.0%
C55Two knights, Max Lange attack2138.1%52.4%
C70Ruy Lopez, Schliemann defence deferred2128.6%71.4%
C88Ruy Lopez, closed, 7...d6, 8.d42133.3%21.4%
D12QGD Slav, Amsterdam variation2152.4%45.2%
D48QGD semi-Slav, Meran214.8%40.5%
D94Gruenfeld with e3 Bd32138.1%52.4%
E78King's Indian, Four pawns attack, with Be2 and Nf32147.6%57.1%
A92Dutch, stonewall with Nc32040.0%45.0%
C20KP, Mengarini's opening2040.0%25.0%
C30KGD, Norwalde variation2015.0%77.5%
C31KGD, Falkbeer, 4.d32055.0%62.5%
C41Philidor, Nimzovich (Jaenisch) variation2040.0%45.0%
C46Three knights, Schlechter variation2035.0%52.5%
C51Evans gambit, normal variation2020.0%50.0%
C53Giuoco Piano, Anderssen variation2060.0%40.0%
C95Ruy Lopez, closed, Breyer, Simagin variation2035.0%57.5%
D33QGD, Tarrasch, Schlechter-Rubinstein system2040.0%55.0%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation2040.0%35.0%
D94Gruenfeld, Flohr defence2050.0%60.0%
A66Benoni, Mikenas variation1921.1%52.6%
B34Sicilian, accelerated fianchetto, exchange variation1947.4%65.8%
B40Sicilian, Pin variation (Sicilian counter-attack)1931.6%73.7%
B45Sicilian, Taimanov, American attack1942.1%42.1%
C33KGA, bishop's gambit, Maurian defence1931.6%52.6%
C48Four knights, Ranken variation1952.6%63.2%
C52Evans gambit, Richardson attack1936.8%28.9%
C57Two knights defence, Lolli attack1936.8%55.3%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
D51QGD, Capablanca anti-Cambridge Springs variation1963.2%68.4%
D52QGD, Cambridge Springs defence, Argentine variation1931.6%42.1%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
A00Amar (Paris) opening1844.4%33.3%
B03Alekhine's defence, Balogh variation1833.3%61.1%
B27Sicilian defence1833.3%55.6%
B62Sicilian, Richter-Rauzer, Podvebrady variation1850.0%36.1%
C37KGA, King's knight's gambit1861.1%63.9%
C51Evans gambit, Paulsen variation1827.8%69.4%
C92Ruy Lopez, closed, Keres (9...a5) variation1850.0%47.2%
D95Gruenfeld with e3 & Qb31844.4%61.1%
E03Catalan, open, Alekhine variation1822.2%38.9%
E72King's Indian, Pomar system1844.4%50.0%
A12English, Bled variation1741.2%61.8%
B02Alekhine's defence, Spielmann variation1729.4%44.1%
C06French, Tarrasch, Leningrad variation1717.6%85.3%
C22Centre game, Hall variation1752.9%38.2%
C34King's knight's gambit1729.4%32.4%
C39KGA, Kieseritsky, Rice gambit1723.5%29.4%
C45Scotch, Blackburne attack1741.2%50.0%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1752.9%44.1%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
D01Richter-Veresov attack, Richter variation1723.5%52.9%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc1735.3%70.6%
E23Nimzo-Indian, Spielmann, Karlsbad variation1735.3%41.2%
A00Battambang opening1631.3%46.9%
A52Budapest, Alekhine variation1625.0%68.8%
B13Caro-Kann, Panov-Botvinnik, Herzog defence1631.3%53.1%
B88Sicilian, Sozin, Fischer variation1650.0%50.0%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1625.0%68.8%
C31KGD, Falkbeer, Tartakower variation1656.3%40.6%
C33KGA, Keres (Mason-Steinitz) gambit1656.3%34.4%
C33KGA, bishop's gambit, Ruy Lopez defence1650.0%50.0%
C38KGA, Philidor gambit1612.5%31.3%
C44Ponziani, Romanishin variation1631.3%46.9%
C44Scotch, Lolli variation1637.5%56.3%
C45Scotch, Blumenfeld attack1637.5%31.3%
C45Scotch, Tartakower variation1637.5%43.8%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C52Evans gambit, compromised defence, Paulsen variation1625.0%62.5%
C67Ruy Lopez, open Berlin defence, Showalter variation1625.0%50.0%
C68Ruy Lopez, exchange, Alekhine variation1637.5%43.8%
C68Ruy Lopez, exchange, Romanovsky variation1631.3%53.1%
C83Ruy Lopez, open, Malkin variation1662.5%56.3%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation1625.0%50.0%
A01Nimzovich-Larsen attack, Dutch variation1526.7%46.7%
A47Queen's Indian, Marienbad system, Berg variation1560.0%56.7%
A83Dutch, Staunton gambit, Lasker variation1546.7%43.3%
B05Alekhine's defence, modern, Panov variation1526.7%60.0%
B20Sicilian, wing gambit, Carlsbad variation1540.0%46.7%
C12French, MacCutcheon, advance variation1526.7%20.0%
C40QP counter-gambit (elephant gambit)1560.0%63.3%
C47Four knights, Scotch variation1520.0%56.7%
C49Four knights, Janowski variation1540.0%60.0%
C65Ruy Lopez, Berlin defence, Mortimer variation1560.0%30.0%
C67Ruy Lopez, Berlin defence, Zukertort variation1553.3%60.0%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1533.3%43.3%
D69QGD, Orthodox defence, classical, 13.de1553.3%53.3%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1573.3%63.3%
D98Gruenfeld, Russian, Keres variation1540.0%46.7%
E11Bogo-Indian defence, Monticelli trap1546.7%43.3%
A61Benoni, fianchetto variation1414.3%78.6%
A82Dutch, Balogh defence1428.6%78.6%
B09Pirc, Austrian attack, Ljubojevic variation1442.9%50.0%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1428.6%50.0%
B21Sicilian, Andreaschek gambit1442.9%57.1%
C17French, Winawer, advance, Rauzer variation1421.4%67.9%
C20KP, Lopez opening1442.9%35.7%
C27Vienna, Alekhine variation1442.9%50.0%
C41Philidor, Hanham, Krause variation1457.1%42.9%
C41Philidor, Philidor counter-gambit1421.4%67.9%
C65Ruy Lopez, Berlin defence, Duras variation1435.7%53.6%
C66Ruy Lopez, closed Berlin defence, Bernstein variation1435.7%53.6%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1435.7%60.7%
D50QGD, Semi-Tarrasch1435.7%53.6%
D51QGD, Manhattan variation1442.9%64.3%
E36Nimzo-Indian, classical, Botvinnik variation1442.9%57.1%
E79King's Indian, Four pawns attack, main line1442.9%57.1%
A22English, Bellon gambit1338.5%57.7%
A45Canard opening1338.5%26.9%
B03Alekhine's defence, four pawns attack, 6...Nc61330.8%46.2%
C11French, Henneberger variation1338.5%50.0%
C13French, classical, Anderssen variation1330.8%38.5%
C24Bishop's opening, Ponziani gambit1323.1%26.9%
C32KGD, Falkbeer, 5.de1338.5%34.6%
C39KGA, Kieseritsky, Neumann defence1353.8%65.4%
D33QGD, Tarrasch, Wagner variation1338.5%57.7%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
D65QGD, Orthodox defence, Rubinstein attack, main line1361.5%69.2%
D99Gruenfeld defence, Smyslov, Yugoslav variation1330.8%46.2%
E60King's Indian, 3.g3, counterthrust variation1330.8%30.8%
A21English, Keres variation1225.0%45.8%
A45Queen's pawn, Bronstein gambit1233.3%50.0%
A58Benko gambit, Nd2 variation1241.7%62.5%
B15Caro-Kann, Rasa-Studier gambit1216.7%33.3%
B18Caro-Kann, classical, Maroczy attack1216.7%41.7%
C00French, Reversed Philidor formation1233.3%58.3%
C14French, classical, Tarrasch variation1216.7%50.0%
C26Vienna, Mengarini variation1266.7%41.7%
C37KGA, Rosentreter gambit1250.0%33.3%
C42Petrov, classical attack, Berger variation1275.0%54.2%
C44Konstantinopolsky opening1250.0%58.3%
C55Two knights, Max Lange attack, Steinitz variation1241.7%62.5%
C57Two knights defence1216.7%41.7%
C58Two knights defence, Yankovich variation1241.7%20.8%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1241.7%54.2%
D97Gruenfeld, Russian, Levenfish variation1225.0%70.8%
A42Modern defence, Averbakh system, Randspringer variation119.1%77.3%
B12de Bruycker defence119.1%59.1%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
C02French, advance, Nimzovich variation1136.4%45.5%
C14French, classical, Pollock variation1136.4%45.5%
C25Vienna, Pierce gambit1145.5%59.1%
C29Vienna gambit, Paulsen attack1154.5%54.5%
C40Latvian, Fraser defence1118.2%54.5%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1172.7%54.5%
C80Ruy Lopez, open, Tartakower variation1154.5%45.5%
D40QGD, Semi-Tarrasch, symmetrical variation1145.5%50.0%
D45QGD semi-Slav, stonewall defence1154.5%54.5%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation1145.5%77.3%
E83King's Indian, Saemisch, Ruban variation1136.4%45.5%
A54Old Indian, Dus-Khotimirsky variation1020.0%40.0%
A70Benoni, classical without 9.O-O1020.0%50.0%
B02Alekhine's defence, Kmoch variation1020.0%20.0%
B05Alekhine's defence, modern, Vitolins attack1050.0%45.0%
B57Sicilian, Magnus Smith trap1050.0%35.0%
B71Sicilian, dragon, Levenfish; Flohr variation1040.0%60.0%
B79Sicilian, dragon, Yugoslav attack, 12.h41030.0%65.0%
C13French, classical, Anderssen-Richter variation1030.0%55.0%
C40Greco defence1030.0%45.0%
C44Scotch, Goering gambit, Bardeleben variation1050.0%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%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation1060.0%70.0%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
D57QGD, Lasker defence, Bernstein variation1070.0%45.0%
A51Budapest defence declined933.3%72.2%
A84Dutch, Staunton gambit deferred955.6%27.8%
B02Alekhine's defence, Steiner variation944.4%55.6%
B03Alekhine's defence, exchange, Karpov variation955.6%50.0%
B73Sicilian, dragon, classical, Zollner gambit944.4%44.4%
C00French, Steinitz attack911.1%27.8%
C00Lengfellner system922.2%77.8%
C13French, classical, Vistaneckis (Nimzovich) variation90.0%66.7%
C23Bishop's opening, Philidor variation944.4%55.6%
C33KGA, bishop's gambit, Cozio (Morphy) defence922.2%44.4%
C37KGA, Muzio gambit944.4%33.3%
C37KGA, Quaade gambit933.3%27.8%
C40Latvian gambit, 3.Bc4966.7%44.4%
C42Petrov, French attack966.7%66.7%
C42Petrov, classical attack, Krause variation944.4%33.3%
C58Two knights defence, Paoli variation933.3%72.2%
D08QGD, Albin counter-gambit, Balogh variation911.1%83.3%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
D32QGD, Tarrasch defence, Tarrasch gambit944.4%33.3%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
A00Durkin's attack837.5%31.3%
A25English, closed, 5.Rb1 Taimanov variation825.0%50.0%
A46Queen's pawn, Torre attack, Wagner gambit825.0%62.5%
A59Benko gambit, 7.e4850.0%50.0%
B00Lemming defence837.5%56.3%
B01Scandinavian, Mieses-Kotrvc gambit862.5%43.8%
B74Sicilian, dragon, classical, Spielmann variation837.5%56.3%
C13French, classical, Frankfurt variation837.5%81.3%
C21Halasz gambit825.0%37.5%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C30KGD, Mafia defence837.5%68.8%
C31KGD, Falkbeer, 3...e4862.5%56.3%
C38KGA, Hanstein gambit837.5%43.8%
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%
C41Philidor, Nimzovich, Sokolsky variation862.5%68.8%
C41Philidor, Philidor counter-gambit, Zukertort variation862.5%68.8%
C48Four knights, Bardeleben variation850.0%50.0%
C52Evans gambit, Lasker defence825.0%25.0%
C55Two knights, Max Lange attack, Marshall variation825.0%62.5%
C57Two knights defence, Fegatello attack, Leonhardt variation825.0%50.0%
C58Two knights defence, Kieseritsky variation850.0%62.5%
C78Ruy Lopez, Wing attack850.0%50.0%
D41QGD, Semi-Tarrasch, Kmoch variation875.0%50.0%
D89Gruenfeld, exchange, Sokolsky variation850.0%37.5%
B01Scandinavian, Kiel variation728.6%85.7%
B02Alekhine's defence, Brooklyn defence714.3%35.7%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
B03Alekhine's defence, four pawns attack, Planinc variation728.6%28.6%
B05Alekhine's defence, modern, Alekhine variation742.9%50.0%
C10French, Rubinstein, Capablanca line771.4%50.0%
C21Danish gambit, Schlechter defence714.3%50.0%
C29Vienna gambit, Bardeleben variation742.9%35.7%
C32KGD, Falkbeer, main line, 7...Bf5714.3%92.9%
C41Philidor, Nimzovich, Klein variation785.7%57.1%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
C46Three knights, Steinitz, Rosenthal variation742.9%35.7%
C82Ruy Lopez, open, 9.c3728.6%71.4%
D31QGD, Alapin variation742.9%64.3%
E08Catalan, closed, Spassky gambit728.6%57.1%
E23Nimzo-Indian, Spielmann, San Remo variation757.1%71.4%
A00Grob, spike attack633.3%33.3%
A81Dutch, Leningrad, Basman system666.7%66.7%
A81Dutch, Leningrad, Karlsbad variation650.0%58.3%
A82Dutch, Staunton gambit, Tartakower variation616.7%41.7%
C00French, Alapin variation650.0%75.0%
C14French, classical variation616.7%41.7%
C14French, classical, Stahlberg variation650.0%58.3%
C20KP, Napoleon's opening633.3%50.0%
C22Centre game, Charousek variation650.0%58.3%
C29Vienna gambit, Steinitz variation633.3%33.3%
C33KGA, bishop's gambit, Paulsen attack666.7%50.0%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence633.3%33.3%
C43Petrov, Urusov gambit633.3%83.3%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Scotch, Relfsson gambit ('MacLopez')666.7%66.7%
C48Four knights, Marshall variation616.7%41.7%
C51Evans counter-gambit650.0%58.3%
C52Evans gambit, Levenfish variation616.7%25.0%
C52Evans gambit, Waller attack60.0%100.0%
C57Two knights defence, Fritz, Gruber variation633.3%50.0%
C61Ruy Lopez, Bird's defence, Paulsen variation650.0%58.3%
C70Ruy Lopez, Graz variation6100.0%50.0%
D08QGD, Albin counter-gambit, Janowski variation650.0%58.3%
D21QGA, Ericson variation60.0%33.3%
D32QGD, Tarrasch defence, Marshall gambit633.3%50.0%
D50QGD, Been-Koomen variation650.0%25.0%
D55QGD, Neo-orthodox variation633.3%50.0%
E20Nimzo-Indian, Mikenas attack666.7%50.0%
E60King's Indian, Danube gambit666.7%66.7%
E77King's Indian, Four pawns attack, Florentine gambit650.0%41.7%
A00Ware (Meadow Hay) opening540.0%60.0%
A02Bird, Hobbs gambit560.0%70.0%
A51Budapest, Fajarowicz, Steiner variation560.0%50.0%
A59Benko gambit, Ne2 variation520.0%30.0%
A66Benoni, pawn storm variation540.0%60.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence560.0%30.0%
C30KGD, classical, Marshall attack5100.0%50.0%
C31KGD, Falkbeer, Nimzovich variation560.0%70.0%
C31KGD, Falkbeer, Rubinstein variation520.0%70.0%
C37KGA, Salvio gambit, Anderssen counter-attack50.0%60.0%
C45Scotch, Pulling counter-attack520.0%70.0%
C56Two knights defence, Canal variation540.0%40.0%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C64Ruy Lopez, classical defence, Charousek variation540.0%80.0%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
D08QGD, Albin counter-gambit, Lasker trap50.0%60.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
E37Nimzo-Indian, classical, San Remo variation50.0%60.0%
A00Global opening425.0%62.5%
A00Grob, Romford counter-gambit425.0%62.5%
A01Nimzovich-Larsen attack, Polish variation425.0%62.5%
A03Mujannah opening450.0%25.0%
A86Dutch, Hort-Antoshin system475.0%62.5%
B00Carr's defence450.0%50.0%
B00KP, Colorado counter425.0%62.5%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B01Scandinavian, Richter variation450.0%75.0%
B02Alekhine's defence, Krejcik variation425.0%12.5%
B20Sicilian, Gloria variation40.0%50.0%
B77Sicilian, dragon, Yugoslav attack, Byrne variation475.0%62.5%
C12French, MacCutcheon, Duras variation425.0%62.5%
C15French, Winawer, Alekhine gambit425.0%37.5%
C21Danish gambit, Collijn defence475.0%37.5%
C32KGD, Falkbeer, Reti variation450.0%50.0%
C33KGA, bishop's gambit, Anderssen variation450.0%50.0%
C33KGA, bishop's gambit, Boden defence450.0%25.0%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit425.0%62.5%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C41Philidor, Hanham, Delmar variation450.0%75.0%
C43Petrov, modern attack, Bardeleben variation425.0%62.5%
C44Dresden opening40.0%25.0%
C44Scotch opening475.0%37.5%
C45Scotch, Ghulam Kassim variation4100.0%50.0%
C48Four knights, Spielmann variation475.0%37.5%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C51Evans gambit450.0%75.0%
C52Evans gambit, Leonhardt variation450.0%50.0%
C57Two knights defence, Fegatello attack, Polerio defence40.0%100.0%
C59Two knights defence, Goering variation425.0%12.5%
C60Ruy Lopez, Lucena defence425.0%62.5%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D50QGD, Canal (Venice) variation425.0%62.5%
D51QGD, Alekhine variation40.0%50.0%
D53QGD, Lasker variation425.0%87.5%
E08Catalan, closed, Zagoryansky variation475.0%37.5%
E21Nimzo-Indian, three knights, Euwe variation475.0%62.5%
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%
A83Dutch, Staunton gambit, Alekhine variation333.3%50.0%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation366.7%66.7%
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%
C32KGD, Falkbeer, Keres variation333.3%83.3%
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%
C33KGA, bishop's gambit, classical defence30.0%33.3%
C33King's gambit accepted333.3%16.7%
C37KGA, Cochrane gambit333.3%50.0%
C37KGA, Silberschmidt gambit333.3%50.0%
C40QP counter-gambit, Maroczy gambit366.7%66.7%
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%
C45Scotch, Paulsen attack333.3%83.3%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C49Four knights, Svenonius variation366.7%66.7%
C50Rousseau gambit333.3%50.0%
C53Giuoco Piano, Mestel variation333.3%83.3%
C58Two knights defence, Blackburne variation30.0%66.7%
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%
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%
A83Dutch, Staunton gambit, Nimzovich variation20.0%0.0%
B00Barnes defence250.0%75.0%
B00Corn stalk defence250.0%25.0%
B00Fred20.0%100.0%
B00KP, Nimzovich defence, Marshall gambit20.0%50.0%
B06Norwegian defence250.0%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%
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%
C23Bishop's opening, Wing gambit250.0%75.0%
C25Vienna, Steinitz gambit250.0%25.0%
C27Vienna, `Frankenstein-Dracula' variation20.0%100.0%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C30KGD, classical, Heath variation20.0%50.0%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C32KGD, Falkbeer, Charousek gambit2100.0%50.0%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C37KGA, Salvio gambit250.0%75.0%
C39KGA, Kieseritsky, Brentano defence, Caro variation2100.0%50.0%
C40King's knight opening20.0%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%
C48Four knights, Rubinstein counter-gambit, 5.Be22100.0%50.0%
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, Vinogradov variation250.0%75.0%
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%
E14Queen's Indian, Averbakh variation20.0%50.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
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%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
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 gambit, Fraser-Minckwitz variation10.0%100.0%
C30KGD, classical counter-gambit10.0%0.0%
C30KGD, classical, Reti variation1100.0%50.0%
C30KGD, classical, Soldatenkov variation10.0%0.0%
C30KGD, classical, Svenonius variation1100.0%50.0%
C31KGD, Falkbeer, Morphy gambit10.0%100.0%
C33KGA, Carrera (Basman) gambit10.0%100.0%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
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%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
C51Evans gambit, Goering attack10.0%100.0%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C55Two knights defence, Keidanz variation1100.0%50.0%
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%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
D26QGA, classical, Furman variation10.0%0.0%
D40QGD, Semi-Tarrasch, Levenfish variation10.0%100.0%
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%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%

Created in 2005-2013 by CCRL team
Last games added on June 23, 2018