CCRL 40/15
Downloads and Statistics
January 18, 2020
Testing summary:
Total: 1'114'202 games
played by 2'605 programs

White wins: 385'748 (34.6%)
Black wins: 286'303 (25.7%)
Draws: 442'151 (39.7%)
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
A00Amar (Paris) opening1844.4%33.3%
A00Amar gambit10.0%0.0%
A00Amsterdam attack30.0%100.0%
A00Anderssen's opening49741.0%50.1%
A00Anti-Borg (Desprez) opening70.0%42.9%
A00Battambang opening2040.0%50.0%
A00Benko's opening940839.8%51.9%
A00Benko's opening, reversed Alekhine12941.9%46.5%
A00Clemenz (Mead's, Basman's or de Klerk's) opening9237.0%47.8%
A00Dunst (Sleipner, Heinrichsen) opening249136.0%50.0%
A00Durkin's attack1030.0%45.0%
A00Gedult's opening812.5%68.8%
A00Global opening425.0%62.5%
A00Grob's attack19342.5%35.2%
A00Grob, Fritz gambit5343.4%27.4%
A00Grob, Romford counter-gambit425.0%62.5%
A00Grob, spike attack633.3%33.3%
A00Lasker simul special333.3%50.0%
A00Mieses opening32232.0%49.5%
A00Novosibirsk opening2634.6%51.9%
A00Polish (Sokolsky) opening261938.8%48.1%
A00Polish, Outflank variation18941.3%47.1%
A00Saragossa opening45529.0%50.8%
A00Van't Kruijs opening60239.9%51.0%
A00Ware (Meadow Hay) opening2222.7%38.6%
A01Nimzovich-Larsen attack96336.1%51.9%
A01Nimzovich-Larsen attack, Dutch variation4323.3%58.1%
A01Nimzovich-Larsen attack, English variation50734.3%48.9%
A01Nimzovich-Larsen attack, Indian variation61536.9%49.2%
A01Nimzovich-Larsen attack, Polish variation616.7%58.3%
A01Nimzovich-Larsen attack, classical variation207133.6%49.3%
A01Nimzovich-Larsen attack, modern variation424438.2%50.7%
A01Nimzovich-Larsen attack, symmetrical variation85640.0%49.9%
A02Bird's opening405235.9%49.3%
A02Bird's opening, Swiss gambit250.0%75.0%
A02Bird, From gambit27533.1%53.3%
A02Bird, From gambit, Lasker variation3250.0%59.4%
A02Bird, From gambit, Lipke variation10.0%0.0%
A02Bird, Hobbs gambit560.0%70.0%
A03Bird's opening361534.4%47.9%
A03Bird's opening, Lasker variation12429.0%46.0%
A03Bird's opening, Williams gambit5133.3%55.9%
A03Mujannah opening450.0%25.0%
A04Reti opening1123136.9%54.6%
A04Reti v Dutch173831.8%57.3%
A04Reti, Herrstroem gambit20.0%100.0%
A04Reti, Lisitsin gambit deferred3826.3%71.1%
A04Reti, Pirc-Lisitsin gambit15229.6%47.7%
A04Reti, Wade defence20.0%50.0%
A05Reti opening543636.0%52.9%
A05Reti, King's Indian attack169939.8%52.9%
A05Reti, King's Indian attack, Reti-Smyslov variation14831.8%49.0%
A05Reti, King's Indian attack, Spassky's variation63940.7%52.0%
A06Reti opening96537.0%52.4%
A06Reti, Nimzovich-Larsen attack429838.9%49.7%
A06Reti, old Indian attack18230.2%47.5%
A06Santasiere's folly20435.3%46.1%
A06Tennison (Lemberg, Zukertort) gambit4240.5%51.2%
A07Reti, King's Indian attack282040.9%52.9%
A07Reti, King's Indian attack (Barcza system)699840.0%53.4%
A07Reti, King's Indian attack (with ...c5)26635.3%49.6%
A07Reti, King's Indian attack, Keres variation97235.6%54.6%
A07Reti, King's Indian attack, Pachman system17139.8%51.5%
A07Reti, King's Indian attack, Yugoslav variation199840.0%53.2%
A08Reti, King's Indian attack73640.6%52.8%
A08Reti, King's Indian attack, French variation30737.5%50.0%
A09Reti accepted48637.9%52.3%
A09Reti accepted, Keres variation6425.0%64.1%
A09Reti opening93537.6%54.2%
A09Reti, advance variation149935.4%48.6%
A10English opening429936.1%54.9%
A10English, Adorjan defence80437.8%52.2%
A10English, Anglo-Dutch defense113031.4%51.2%
A10English, Jaenisch gambit20.0%100.0%
A11English, Caro-Kann defensive system199539.0%53.2%
A12English, Bled variation2737.0%48.1%
A12English, Capablanca's variation11235.7%48.2%
A12English, Caro-Kann defensive system29233.9%51.5%
A12English, Caro-Kann defensive system, Bogolyubov variation15644.9%53.8%
A12English, London defensive system15342.5%52.0%
A12English, New York (London) defensive system7741.6%45.5%
A12English, Torre defensive system8844.3%54.0%
A13English opening292835.7%52.8%
A13English opening, Agincourt variation185438.6%54.9%
A13English, Kurajica defence16432.9%60.4%
A13English, Neo-Catalan104340.7%52.8%
A13English, Neo-Catalan accepted147746.5%55.7%
A13English, Romanishin gambit39340.5%56.9%
A13English, Wimpey system19743.7%47.7%
A14English, Neo-Catalan declined105343.7%54.7%
A14English, Symmetrical, Keres defence57747.5%57.0%
A15English opening1478043.1%53.6%
A15English, 1...Nf6 (Anglo-Indian defense)171937.7%54.8%
A16English opening178334.4%54.1%
A16English, Anglo-Gruenfeld defense37341.6%54.8%
A16English, Anglo-Gruenfeld defense, Korchnoi variation9638.5%55.7%
A16English, Anglo-Gruenfeld, Czech defense25434.6%59.4%
A16English, Anglo-Gruenfeld, Smyslov defense17733.9%57.6%
A17English opening29737.7%52.9%
A17English, Nimzo-English opening244338.4%53.6%
A17English, Queens Indian formation32436.1%60.0%
A17English, Queens Indian, Romanishin variation9931.3%55.1%
A18English, Mikenas-Carls variation30938.5%57.8%
A18English, Mikenas-Carls, Flohr variation47540.0%58.9%
A18English, Mikenas-Carls, Kevitz variation3234.4%48.4%
A19English, Mikenas-Carls, Sicilian variation67538.2%53.8%
A20English opening848837.5%53.7%
A20English, Nimzovich variation15230.9%54.9%
A20English, Nimzovich, Flohr variation21038.1%48.1%
A21English opening213731.4%55.6%
A21English, Keres variation1421.4%46.4%
A21English, Kramnik-Shirov counterattack302637.5%51.9%
A21English, Smyslov defence6224.2%62.1%
A21English, Troeger defence16925.4%55.9%
A22English opening103235.7%50.6%
A22English, Bellon gambit4727.7%58.5%
A22English, Bremen, Smyslov system195138.4%48.6%
A22English, Bremen, reverse dragon77139.9%51.5%
A22English, Carls' Bremen system58537.8%53.8%
A23English, Bremen system, Keres variation83638.5%49.5%
A24English, Bremen system with ...g623438.0%48.5%
A25English, Sicilian reversed114832.6%53.7%
A25English, closed system86634.2%54.0%
A25English, closed system (without ...d6)13829.0%55.8%
A25English, closed, 5.Rb157339.1%52.4%
A25English, closed, 5.Rb1 Taimanov variation1020.0%60.0%
A25English, closed, Hort variation4429.5%55.7%
A25English, closed, Taimanov variation3218.8%62.5%
A26English, Botvinnik system38037.1%53.0%
A26English, closed system41437.7%51.2%
A27English, three knights system133630.7%52.2%
A28English, Bradley Beach variation7024.3%39.3%
A28English, Nenarokov variation12639.7%50.8%
A28English, four knights system44342.2%52.9%
A28English, four knights, 4.e3131837.6%52.7%
A28English, four knights, Capablanca variation62036.8%54.0%
A28English, four knights, Marini variation110938.8%50.3%
A28English, four knights, Nimzovich variation79134.0%54.3%
A28English, four knights, Romanishin variation53549.9%52.2%
A28English, four knights, Stean variation9541.1%58.4%
A29English, four knights, kingside fianchetto712441.1%52.1%
A30English, symmetrical variation433538.9%54.1%
A30English, symmetrical, hedgehog system295046.7%55.8%
A30English, symmetrical, hedgehog, flexible formation18442.9%54.6%
A31English, symmetrical, Benoni formation140939.3%55.7%
A32English, symmetrical variation69541.9%54.2%
A33English, symmetrical variation196747.3%53.8%
A33English, symmetrical, Geller variation74840.0%54.2%
A34English, symmetrical variation150939.7%54.1%
A34English, symmetrical, Rubinstein system45838.6%53.2%
A34English, symmetrical, three knights system163143.8%54.8%
A35English, symmetrical variation38635.8%50.0%
A35English, symmetrical, four knights system261243.8%53.3%
A36English, symmetrical variation13734.3%51.5%
A36English, symmetrical, Botvinnik system18834.6%49.2%
A36English, symmetrical, Botvinnik system reversed10839.8%54.2%
A36English, ultra-symmetrical variation184737.5%52.4%
A37English, symmetrical variation126240.5%50.8%
A37English, symmetrical, Botvinnik system reversed91238.8%51.9%
A38English, symmetrical variation64143.8%55.0%
A38English, symmetrical, main line with b31100.0%50.0%
A38English, symmetrical, main line with d319242.7%54.2%
A39English, symmetrical, main line with d461741.2%55.9%
A40Beefeater defence5431.5%62.0%
A40Modern defence171335.4%57.0%
A40Polish defence12032.5%57.1%
A40Queen's pawn361133.8%54.9%
A40Queen's pawn, Charlick (Englund) gambit3243.8%59.4%
A40Queen's pawn, English defence45644.1%57.6%
A40Queen's pawn, Franco-Indian (Keres) defence189235.5%56.2%
A40Queen's pawn, Keres defence283941.8%56.1%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence32326.6%56.7%
A41Modern defence15030.0%55.7%
A41Old Indian defence145132.7%53.7%
A41Old Indian, Tartakower (Wade) variation171132.3%58.9%
A41Queen's Pawn287134.8%55.6%
A41Robatsch defence, Rossolimo variation20532.7%51.5%
A42Modern defence, Averbakh system75632.7%58.9%
A42Modern defence, Averbakh system, Kotov variation16726.3%62.3%
A42Modern defence, Averbakh system, Randspringer variation1513.3%66.7%
A42Pterodactyl defence34036.8%63.4%
A43Hawk (Habichd) defence366.7%33.3%
A43Old Benoni defence246333.0%56.9%
A43Old Benoni, Franco-Benoni defence18534.1%62.4%
A43Old Benoni, Mujannah formation8532.9%62.4%
A43Old Benoni, Schmid's system3528.6%57.1%
A43Woozle defence80.0%75.0%
A44Old Benoni defence6630.3%60.6%
A44Semi-Benoni (`blockade variation')42029.5%60.0%
A45Blackmar-Diemer gambit24327.2%52.3%
A45Canard opening1729.4%38.2%
A45Paleface attack4632.6%51.1%
A45Queen's pawn game385836.1%53.6%
A45Queen's pawn, Bronstein gambit1233.3%50.0%
A45Trompovsky attack (Ruth, Opovcensky opening)664033.9%53.3%
A46Queen's pawn game508138.0%54.3%
A46Queen's pawn, Torre attack203335.7%52.1%
A46Queen's pawn, Torre attack, Wagner gambit2330.4%50.0%
A46Queen's pawn, Yusupov-Rubinstein system110640.0%52.4%
A47Queen's Indian defence74536.6%51.5%
A47Queen's Indian, Marienbad system11137.8%52.3%
A47Queen's Indian, Marienbad system, Berg variation2152.4%54.8%
A48King's Indian, East Indian defence128238.1%52.3%
A48King's Indian, London system161338.0%53.3%
A48King's Indian, Torre attack219439.4%50.0%
A49King's Indian, fianchetto without c4160840.2%55.8%
A50Kevitz-Trajkovich defence64833.0%56.0%
A50Queen's Indian accelerated43342.3%56.5%
A50Queen's pawn game110036.3%56.0%
A51Budapest defence declined2944.8%60.3%
A51Budapest, Fajarowicz variation38239.5%56.9%
A51Budapest, Fajarowicz, Steiner variation4835.4%46.9%
A52Budapest defence6836.8%52.2%
A52Budapest, Adler variation40145.6%58.2%
A52Budapest, Alekhine variation2528.0%62.0%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
A52Budapest, Alekhine, Abonyi variation6927.5%60.1%
A52Budapest, Rubinstein variation47141.4%61.3%
A53Old Indian defence145237.1%58.7%
A53Old Indian, Janowski variation20435.8%54.7%
A54Old Indian, Dus-Khotimirsky variation2227.3%40.9%
A54Old Indian, Ukrainian variation18239.6%52.2%
A54Old Indian, Ukrainian variation, 4.Nf343035.1%55.2%
A55Old Indian, main line55536.0%58.6%
A56Benoni defence100233.2%60.1%
A56Benoni defence, Hromodka system61225.7%63.3%
A56Czech Benoni defence38926.7%66.8%
A56Czech Benoni, King's Indian system6520.0%62.3%
A56Vulture defence1100.0%50.0%
A57Benko gambit114534.8%55.5%
A57Benko gambit half accepted108538.2%58.2%
A57Benko gambit, Zaitsev system13434.3%50.7%
A58Benko gambit accepted93234.9%58.4%
A58Benko gambit, Nd2 variation1241.7%62.5%
A58Benko gambit, fianchetto variation17045.9%60.6%
A59Benko gambit5046.0%61.0%
A59Benko gambit, 7.e43943.6%52.6%
A59Benko gambit, Ne2 variation2040.0%50.0%
A59Benko gambit, main line15642.3%67.9%
A60Benoni defence30928.5%55.3%
A61Benoni defence62433.3%61.7%
A61Benoni, Nimzovich (knight's tour) variation56327.9%59.8%
A61Benoni, Uhlmann variation21621.8%40.0%
A61Benoni, fianchetto variation6631.8%61.4%
A62Benoni, fianchetto variation141135.4%55.8%
A63Benoni, fianchetto, 9...Nbd716437.2%64.9%
A64Benoni, fianchetto, 11...Re824639.8%50.0%
A65Benoni, 6.e450231.9%57.2%
A66Benoni, Mikenas variation3318.2%51.5%
A66Benoni, pawn storm variation540.0%60.0%
A67Benoni, Taimanov variation33029.4%62.3%
A68Benoni, four pawns attack11633.6%59.1%
A69Benoni, four pawns attack, main line13438.8%52.2%
A70Benoni, classical with e4 and Nf369239.5%59.0%
A70Benoni, classical without 9.O-O1711.8%52.9%
A71Benoni, classical, 8.Bg515433.8%55.2%
A72Benoni, classical without 9.O-O11846.6%62.3%
A73Benoni, classical, 9.O-O12531.2%58.0%
A74Benoni, classical, 9...a6, 10.a44032.5%63.8%
A75Benoni, classical with ...a6 and 10...Bg413732.1%62.8%
A76Benoni, classical, 9...Re820740.1%63.5%
A77Benoni, classical, 9...Re8, 10.Nd222434.4%62.7%
A78Benoni, classical with ...Re8 and ...Na612732.3%61.0%
A79Benoni, classical, 11.f310230.4%62.3%
A80Dutch340434.2%54.3%
A80Dutch, 2.Bg5 variation166831.1%54.0%
A80Dutch, Korchnoi attack7226.4%49.3%
A80Dutch, Krejcik gambit32132.4%53.6%
A80Dutch, Manhattan (Alapin, Ulvestad) variation4922.4%52.0%
A80Dutch, Spielmann gambit20.0%50.0%
A81Dutch defence445937.7%56.4%
A81Dutch defence, Blackburne variation7829.5%53.2%
A81Dutch, Leningrad, Basman system1250.0%58.3%
A81Dutch, Leningrad, Karlsbad variation1250.0%50.0%
A82Dutch, Balogh defence2646.2%61.5%
A82Dutch, Staunton gambit21534.9%44.0%
A82Dutch, Staunton gambit, Tartakower variation1827.8%58.3%
A83Dutch, Staunton gambit, Alekhine variation540.0%40.0%
A83Dutch, Staunton gambit, Chigorin variation10129.7%53.5%
A83Dutch, Staunton gambit, Lasker variation3336.4%57.6%
A83Dutch, Staunton gambit, Nimzovich variation450.0%25.0%
A83Dutch, Staunton gambit, Staunton's line25538.4%49.0%
A84Dutch defence83436.3%56.7%
A84Dutch defence, Rubinstein variation47531.6%56.8%
A84Dutch, Staunton gambit deferred1145.5%31.8%
A85Dutch with c4 & Nc395632.7%54.7%
A86Dutch with c4 & g317535.4%60.6%
A86Dutch, Hort-Antoshin system1040.0%60.0%
A86Dutch, Leningrad variation29537.3%57.6%
A87Dutch, Leningrad, main variation54039.4%55.3%
A88Dutch, Leningrad, main variation with c6112939.6%58.9%
A89Dutch, Leningrad, main variation with Nc655234.8%62.0%
A90Dutch defence130238.2%60.6%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation29936.1%60.2%
A90Dutch-Indian, Alekhine variation8930.3%57.9%
A91Dutch defence21933.3%52.7%
A92Dutch defence13440.3%61.2%
A92Dutch defence, Alekhine variation5743.9%58.8%
A92Dutch, stonewall variation13742.3%59.9%
A92Dutch, stonewall with Nc33444.1%48.5%
A93Dutch, stonewall, Botwinnik variation27839.2%61.0%
A94Dutch, stonewall with Ba312941.9%56.6%
A95Dutch, stonewall with Nc330231.8%58.3%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
A96Dutch, classical variation51535.0%59.2%
A97Dutch, Ilyin-Genevsky variation16336.2%54.9%
A97Dutch, Ilyin-Genevsky, Winter variation17639.2%62.8%
A98Dutch, Ilyin-Genevsky variation with Qc219226.6%58.1%
A99Dutch, Ilyin-Genevsky variation with b337138.3%60.6%
B00Barnes defence633.3%83.3%
B00Carr's defence450.0%50.0%
B00Corn stalk defence450.0%50.0%
B00Fred80.0%75.0%
B00KP, Colorado counter1241.7%70.8%
B00KP, Nimzovich defence102132.1%58.4%
B00KP, Nimzovich defence, Bogolyubov variation14829.7%60.1%
B00KP, Nimzovich defence, Marshall gambit616.7%25.0%
B00King's pawn opening255233.7%56.6%
B00Lemming defence1233.3%58.3%
B00Owen defence46732.1%60.2%
B00Reversed Grob (Borg/Basman defence/macho Grob)4418.2%70.5%
B00St. George (Baker) defence4731.9%60.6%
B01Scandinavian (centre counter) defence347439.1%57.5%
B01Scandinavian defence147939.2%58.4%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B01Scandinavian defence, Lasker variation12433.1%64.9%
B01Scandinavian gambit19743.1%55.1%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
B01Scandinavian, Icelandic gambit6845.6%56.6%
B01Scandinavian, Kiel variation728.6%85.7%
B01Scandinavian, Marshall variation68643.9%59.1%
B01Scandinavian, Mieses-Kotrvc gambit1353.8%50.0%
B01Scandinavian, Pytel-Wade variation329443.1%57.9%
B01Scandinavian, Richter variation1216.7%66.7%
B02Alekhine's defence77434.2%54.5%
B02Alekhine's defence, Brooklyn defence714.3%35.7%
B02Alekhine's defence, Kmoch variation1118.2%27.3%
B02Alekhine's defence, Krejcik variation1838.9%47.2%
B02Alekhine's defence, Maroczy variation15935.2%57.9%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation250.0%25.0%
B02Alekhine's defence, Saemisch attack43634.2%49.0%
B02Alekhine's defence, Scandinavian variation48836.5%55.5%
B02Alekhine's defence, Spielmann variation2222.7%47.7%
B02Alekhine's defence, Steiner variation1936.8%50.0%
B02Alekhine's defence, Two pawns' (Lasker's) attack39639.4%52.3%
B02Alekhine's defence, Two pawns' attack, Mikenas variation20.0%0.0%
B02Alekhine's defence, Welling variation1020.0%50.0%
B03Alekhine's defence17236.0%59.9%
B03Alekhine's defence, Balogh variation4835.4%57.3%
B03Alekhine's defence, exchange variation81939.1%59.0%
B03Alekhine's defence, exchange, Karpov variation1266.7%50.0%
B03Alekhine's defence, four pawns attack28832.3%65.1%
B03Alekhine's defence, four pawns attack, 6...Nc62035.0%42.5%
B03Alekhine's defence, four pawns attack, 7.Be315035.3%69.7%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
B03Alekhine's defence, four pawns attack, Planinc variation1136.4%36.4%
B03Alekhine's defence, four pawns attack, Trifunovic variation8636.0%66.9%
B03Alekhine's defence, four pawns attack, fianchetto variation13933.8%60.8%
B04Alekhine's defence, modern variation31336.1%61.2%
B04Alekhine's defence, modern, Keres variation6934.8%68.1%
B04Alekhine's defence, modern, Larsen variation103642.4%59.3%
B04Alekhine's defence, modern, Schmid variation17639.8%60.8%
B04Alekhine's defence, modern, fianchetto variation88037.3%57.4%
B05Alekhine's defence, modern variation, 4...Bg475632.4%64.5%
B05Alekhine's defence, modern, Alekhine variation837.5%43.8%
B05Alekhine's defence, modern, Flohr variation19138.7%60.2%
B05Alekhine's defence, modern, Panov variation2740.7%50.0%
B05Alekhine's defence, modern, Vitolins attack4045.0%55.0%
B06Norwegian defence666.7%50.0%
B06Robatsch (modern) defence878435.3%56.1%
B06Robatsch defence104935.0%58.7%
B06Robatsch defence, Gurgenidze variation8733.3%62.6%
B06Robatsch defence, Pseudo-Austrian attack63735.5%53.5%
B06Robatsch defence, Two knights variation39432.0%60.2%
B06Robatsch defence, Two knights, Suttles variation111037.7%57.8%
B06Robatsch defence, three pawns attack20127.4%60.0%
B07Pirc defence244735.9%56.1%
B07Pirc, 150 attack30437.8%62.0%
B07Pirc, Byrne variation54433.1%57.0%
B07Pirc, Chinese variation650.0%41.7%
B07Pirc, Holmov system7540.0%53.3%
B07Pirc, Sveshnikov system38635.8%52.8%
B07Pirc, Ufimtsev-Pytel variation65733.9%57.8%
B07Pirc, bayonet (Mariotti) attack4544.4%57.8%
B07Robatsch defence, Geller's system73436.5%56.8%
B08Pirc, classical (two knights) system87837.4%58.4%
B08Pirc, classical system, 5.Be2286838.5%58.1%
B08Pirc, classical, h3 system52238.1%58.9%
B09Pirc, Austrian attack21839.0%61.2%
B09Pirc, Austrian attack, 6.Bd3142839.8%59.9%
B09Pirc, Austrian attack, 6.Be339432.2%56.7%
B09Pirc, Austrian attack, 6.e512540.0%56.0%
B09Pirc, Austrian attack, Ljubojevic variation3231.3%46.9%
B09Pirc, Austrian attack, dragon formation86539.3%57.9%
B10Caro-Kann defence298534.7%52.5%
B10Caro-Kann, Goldman (Spielmann) variation14436.1%51.4%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B10Caro-Kann, Two knights variation70135.1%57.8%
B10Caro-Kann, anti-Caro-Kann defence78731.5%59.7%
B10Caro-Kann, anti-anti-Caro-Kann defence160447.9%52.4%
B10Caro-Kann, closed (Breyer) variation134237.8%52.6%
B11Caro-Kann, Two knights, 3...Bg4129839.3%55.2%
B12Caro-Kann defence38531.2%57.4%
B12Caro-Kann, 3.Nd224535.5%59.8%
B12Caro-Kann, Edinburgh variation7541.3%56.7%
B12Caro-Kann, Tartakower (fantasy) variation95036.8%55.4%
B12Caro-Kann, advance variation1297737.9%56.3%
B12Caro-Kann, advance, Short variation6429.7%60.2%
B12Caro-Masi defence1100.0%50.0%
B12de Bruycker defence258.0%56.0%
B13Caro-Kann, Panov-Botvinnik attack127247.0%53.1%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation5238.5%48.1%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack2425.0%41.7%
B13Caro-Kann, Panov-Botvinnik, Herzog defence1631.3%53.1%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation742.9%64.3%
B13Caro-Kann, Panov-Botvinnik, normal variation13147.3%56.5%
B13Caro-Kann, exchange variation123639.2%52.0%
B13Caro-Kann, exchange, Rubinstein variation18337.7%53.8%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6214546.9%55.6%
B14Caro-Kann, Panov-Botvinnik attack, 5...g639450.5%52.7%
B15Caro-Kann defence33930.7%54.9%
B15Caro-Kann, Alekhine gambit3432.4%48.5%
B15Caro-Kann, Forgacs variation27142.1%56.5%
B15Caro-Kann, Gurgenidze counter-attack850.0%62.5%
B15Caro-Kann, Gurgenidze system45236.5%57.4%
B15Caro-Kann, Rasa-Studier gambit1822.2%27.8%
B15Caro-Kann, Tartakower (Nimzovich) variation47540.8%56.0%
B16Caro-Kann, Bronstein-Larsen variation60132.6%60.9%
B17Caro-Kann, Steinitz variation425143.4%53.4%
B18Caro-Kann, classical variation193445.0%54.8%
B18Caro-Kann, classical, 6.h468542.5%55.4%
B18Caro-Kann, classical, Flohr variation12452.4%52.0%
B18Caro-Kann, classical, Maroczy attack1216.7%41.7%
B19Caro-Kann, classical, 7...Nd740449.8%52.1%
B19Caro-Kann, classical, Spassky variation279940.1%56.4%
B20Sicilian defence343833.4%50.2%
B20Sicilian, Gloria variation1421.4%46.4%
B20Sicilian, Keres variation (2.Ne2)103537.6%52.4%
B20Sicilian, Steinitz variation59837.6%50.8%
B20Sicilian, wing gambit9635.4%45.8%
B20Sicilian, wing gambit, Carlsbad variation3447.1%52.9%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
B20Sicilian, wing gambit, Marshall variation9329.0%55.4%
B21Sicilian, Andreaschek gambit1947.4%55.3%
B21Sicilian, Grand Prix attack192733.6%52.2%
B21Sicilian, Smith-Morra gambit102840.4%48.0%
B22Sicilian, 2.c3, Heidenfeld variation6225.8%45.2%
B22Sicilian, Alapin's variation (2.c3)789042.6%54.6%
B23Sicilian, Grand Prix attack97136.9%49.3%
B23Sicilian, Grand Prix attack, Schofman variation16041.9%52.2%
B23Sicilian, chameleon variation90334.9%57.1%
B23Sicilian, closed469236.1%51.5%
B23Sicilian, closed, 2...Nc6250138.7%52.4%
B23Sicilian, closed, Korchnoi variation23647.0%50.6%
B24Sicilian, closed59435.2%50.3%
B24Sicilian, closed, Smyslov variation2528.0%58.0%
B25Sicilian, closed37035.4%50.1%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)7133.8%50.7%
B25Sicilian, closed, 6.f450638.5%50.3%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)3743.2%59.5%
B26Sicilian, closed, 6.Be377732.8%50.1%
B27Sicilian defence5335.8%63.2%
B27Sicilian, Acton extension425.0%87.5%
B27Sicilian, Hungarian variation385539.7%57.7%
B27Sicilian, Katalimov variation20440.2%58.8%
B27Sicilian, Quinteros variation7437.8%63.5%
B27Sicilian, Stiletto (Althouse) variation250.0%25.0%
B28Sicilian, O'Kelly variation94235.5%58.0%
B29Sicilian, Nimzovich-Rubinstein variation118640.0%58.1%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit5052.0%54.0%
B30Sicilian defence369939.5%54.5%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)607837.8%56.5%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)390240.5%56.3%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation4148.8%51.2%
B32Sicilian defence109239.1%55.5%
B32Sicilian, Flohr variation31035.5%59.4%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation150240.4%56.3%
B32Sicilian, Labourdonnais-Loewenthal variation32539.4%58.2%
B32Sicilian, Nimzovich variation3540.0%54.3%
B33Sicilian defence55538.6%54.6%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation119935.3%55.2%
B33Sicilian, Pelikan, Bird variation24637.4%63.8%
B33Sicilian, Pelikan, Chelyabinsk variation230736.6%57.3%
B33Sicilian, Sveshnikov variation152138.9%50.8%
B34Sicilian, accelerated fianchetto, exchange variation3638.9%50.0%
B34Sicilian, accelerated fianchetto, modern variation53838.7%52.4%
B35Sicilian, accelerated fianchetto, modern variation with Bc4232543.1%53.6%
B36Sicilian, accelerated fianchetto, Gurgenidze variation32548.3%60.2%
B36Sicilian, accelerated fianchetto, Maroczy bind109245.2%57.9%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg721742.9%55.5%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3118143.2%57.5%
B39Sicilian, accelerated fianchetto, Breyer variation69241.6%58.2%
B40Sicilian defence748237.9%54.1%
B40Sicilian, Anderssen variation97040.1%56.8%
B40Sicilian, Marshall variation425.0%87.5%
B40Sicilian, Pin variation (Sicilian counter-attack)3633.3%63.9%
B40Sicilian, Pin, Jaffe variation40.0%100.0%
B40Sicilian, Pin, Koch variation6425.0%76.6%
B41Sicilian, Kan variation25643.4%55.3%
B41Sicilian, Kan, Maroczy bind (Reti variation)61935.7%59.4%
B41Sicilian, Kan, Maroczy bind - Bronstein variation2532.0%32.0%
B42Sicilian, Kan, 5.Bd3234938.8%57.8%
B42Sicilian, Kan, Gipslis variation8439.3%63.7%
B42Sicilian, Kan, Polugaievsky variation172238.1%54.5%
B42Sicilian, Kan, Swiss cheese variation31834.3%61.2%
B43Sicilian, Kan, 5.Nc3374239.2%56.3%
B44Sicilian defence38742.6%52.3%
B44Sicilian, Szen (`anti-Taimanov') variation96841.6%53.3%
B44Sicilian, Szen variation, Dely-Kasparov gambit2958.6%60.3%
B44Sicilian, Szen, hedgehog variation24141.1%50.8%
B45Sicilian, Taimanov variation227638.0%56.5%
B45Sicilian, Taimanov, American attack1942.1%42.1%
B46Sicilian, Taimanov variation356438.4%55.6%
B47Sicilian, Taimanov (Bastrikov) variation433941.8%54.3%
B48Sicilian, Taimanov variation384037.3%56.2%
B49Sicilian, Taimanov variation76344.8%57.3%
B50Sicilian607239.1%52.9%
B50Sicilian, wing gambit deferred3333.3%43.9%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack237038.0%55.0%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7229941.2%50.8%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit20840.4%58.2%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation103744.5%54.8%
B53Sicilian, Chekhover variation189240.8%51.9%
B53Sicilian, Chekhover, Zaitsev variation10232.4%59.3%
B54Sicilian124336.4%55.0%
B54Sicilian, Prins (Moscow) variation73838.3%55.6%
B55Sicilian, Prins variation, Venice attack9741.2%50.5%
B56Sicilian204738.9%53.1%
B56Sicilian, Venice attack7935.4%60.8%
B57Sicilian, Magnus Smith trap1145.5%40.9%
B57Sicilian, Sozin, Benko variation138539.3%51.6%
B57Sicilian, Sozin, not Scheveningen29140.9%55.5%
B58Sicilian, Boleslavsky variation47837.0%48.0%
B58Sicilian, Boleslavsky, Louma variation5435.2%54.6%
B58Sicilian, classical25043.2%48.8%
B59Sicilian, Boleslavsky variation, 7.Nb318745.5%52.7%
B60Sicilian, Richter-Rauzer89236.2%59.0%
B60Sicilian, Richter-Rauzer, Bondarevsky variation4151.2%62.2%
B60Sicilian, Richter-Rauzer, Larsen variation17431.0%59.8%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd264736.5%61.5%
B62Sicilian, Richter-Rauzer, 6...e65644.6%59.8%
B62Sicilian, Richter-Rauzer, Keres variation11531.3%48.7%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation9340.9%51.6%
B62Sicilian, Richter-Rauzer, Podvebrady variation2250.0%34.1%
B62Sicilian, Richter-Rauzer, Richter attack714.3%50.0%
B63Sicilian, Richter-Rauzer, Rauzer attack16337.4%57.4%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7125337.7%56.3%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f434938.4%57.6%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1241.7%62.5%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd463341.4%55.8%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6590833.8%51.7%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7309434.0%55.5%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be715232.9%56.6%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf613528.1%58.5%
B70Sicilian, dragon variation91942.4%51.9%
B71Sicilian, dragon, Levenfish variation41938.2%53.2%
B71Sicilian, dragon, Levenfish; Flohr variation4443.2%53.4%
B72Sicilian, dragon, 6.Be321534.0%50.9%
B72Sicilian, dragon, classical attack12437.1%54.0%
B72Sicilian, dragon, classical, Amsterdam variation5728.1%49.1%
B72Sicilian, dragon, classical, Grigoriev variation4544.4%48.9%
B72Sicilian, dragon, classical, Nottingham variation5145.1%53.9%
B73Sicilian, dragon, classical, 8.O-O41445.7%52.5%
B73Sicilian, dragon, classical, Richter variation15948.4%57.5%
B73Sicilian, dragon, classical, Zollner gambit944.4%44.4%
B74Sicilian, dragon, classical, 9.Nb349349.5%49.5%
B74Sicilian, dragon, classical, Alekhine variation2951.7%63.8%
B74Sicilian, dragon, classical, Reti-Tartakower variation9844.9%54.1%
B74Sicilian, dragon, classical, Spielmann variation1030.0%55.0%
B75Sicilian, dragon, Yugoslav attack46433.0%56.1%
B76Sicilian, dragon, Yugoslav attack, 7...O-O36736.0%53.1%
B76Sicilian, dragon, Yugoslav attack, Rauser variation104233.8%63.7%
B77Sicilian, dragon, Yugoslav attack, 9...Bd726538.5%56.6%
B77Sicilian, dragon, Yugoslav attack, 9.Bc413735.0%54.0%
B77Sicilian, dragon, Yugoslav attack, Byrne variation1844.4%66.7%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O50028.4%56.2%
B79Sicilian, dragon, Yugoslav attack, 12.h41625.0%62.5%
B80Sicilian, Scheveningen variation138032.0%54.2%
B80Sicilian, Scheveningen, English variation18332.8%53.6%
B80Sicilian, Scheveningen, Vitolins variation5644.6%50.9%
B80Sicilian, Scheveningen, fianchetto variation22432.1%51.8%
B81Sicilian, Scheveningen, Keres attack243734.6%60.0%
B82Sicilian, Scheveningen, 6.f460336.0%56.5%
B82Sicilian, Scheveningen, Tal variation13236.4%62.9%
B83Sicilian, Scheveningen, 6.Be258740.7%53.2%
B83Sicilian, modern Scheveningen51243.0%49.8%
B83Sicilian, modern Scheveningen, main line56444.5%52.7%
B83Sicilian, modern Scheveningen, main line with Nb39936.4%54.5%
B84Sicilian, Scheveningen (Paulsen), classical variation394539.2%52.0%
B84Sicilian, Scheveningen, classical, Nd7 system11232.1%50.9%
B85Sicilian, Scheveningen, classical14639.7%50.0%
B85Sicilian, Scheveningen, classical main line38446.6%56.1%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
B85Sicilian, Scheveningen, classical, Maroczy system2634.6%55.8%
B86Sicilian, Sozin attack28843.4%53.3%
B87Sicilian, Sozin with ...a6 and ...b585737.0%49.8%
B88Sicilian, Sozin, Fischer variation1650.0%50.0%
B88Sicilian, Sozin, Leonhardt variation66839.8%54.9%
B89Sicilian, Sozin, 7.Be3111137.7%51.2%
B89Sicilian, Velimirovic attack82834.4%51.9%
B90Sicilian, Najdorf354736.8%53.8%
B90Sicilian, Najdorf, Adams attack167738.7%53.1%
B90Sicilian, Najdorf, Byrne (English) attack2176435.8%53.2%
B90Sicilian, Najdorf, Lipnitzky attack126536.4%50.7%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation101739.5%54.0%
B92Sicilian, Najdorf, Opovcensky variation575940.7%53.5%
B93Sicilian, Najdorf, 6.f4183139.5%51.0%
B94Sicilian, Najdorf, 6.Bg5101136.1%53.1%
B95Sicilian, Najdorf, 6...e6132938.1%49.9%
B96Sicilian, Najdorf, 7.f4168636.4%51.9%
B96Sicilian, Najdorf, Polugayevsky variation10737.4%54.2%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3920.5%53.8%
B97Sicilian, Najdorf, 7...Qb6181133.8%47.0%
B97Sicilian, Najdorf, Poisoned pawn variation120244.6%49.6%
B98Sicilian, Najdorf variation34229.2%57.0%
B98Sicilian, Najdorf, 7...Be713333.8%55.3%
B98Sicilian, Najdorf, Browne variation4831.3%61.5%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2250.0%47.7%
B99Sicilian, Najdorf, 7...Be7 main line65829.9%53.3%
C00French defence99529.8%55.8%
C00French defence, Steiner variation93942.3%51.7%
C00French, Alapin variation1625.0%56.3%
C00French, Chigorin variation126431.5%49.9%
C00French, King's Indian attack288836.0%51.5%
C00French, Labourdonnais variation29428.9%44.7%
C00French, Pelikan variation7639.5%51.3%
C00French, Reti (Spielmann) variation25035.6%51.8%
C00French, Reversed Philidor formation1330.8%61.5%
C00French, Schlechter variation23240.9%51.5%
C00French, Steinitz attack2326.1%43.5%
C00French, Two knights variation35735.6%53.4%
C00French, Wing gambit5639.3%58.9%
C00Lengfellner system2114.3%64.3%
C00St. George defence19645.4%58.4%
C01French, exchange variation198643.4%53.7%
C01French, exchange, Bogolyubov variation837.5%43.8%
C01French, exchange, Svenonius variation8736.8%51.7%
C02French, advance variation162331.5%56.3%
C02French, advance, Euwe variation161635.6%55.3%
C02French, advance, Milner-Barry gambit11935.3%48.7%
C02French, advance, Nimzovich system14329.4%49.7%
C02French, advance, Nimzovich variation1428.6%42.9%
C02French, advance, Paulsen attack202233.5%55.0%
C02French, advance, Steinitz variation55435.6%57.7%
C02French, advance, Wade variation40339.2%57.8%
C03French, Tarrasch303143.0%57.0%
C03French, Tarrasch, Guimard variation14830.4%61.1%
C03French, Tarrasch, Haberditz variation40.0%75.0%
C04French, Tarrasch, Guimard main line54529.5%59.9%
C05French, Tarrasch, Botvinnik variation9935.4%65.2%
C05French, Tarrasch, closed variation143231.0%60.6%
C06French, Tarrasch, Leningrad variation1921.1%84.2%
C06French, Tarrasch, closed variation, main line108437.9%59.7%
C07French, Tarrasch, Eliskases variation15947.2%53.8%
C07French, Tarrasch, open variation427947.0%53.9%
C08French, Tarrasch, open, 4.ed ed152850.2%54.7%
C09French, Tarrasch, open variation, main line121550.0%56.7%
C10French, Fort Knox variation70140.2%56.9%
C10French, Frere (Becker) variation3237.5%62.5%
C10French, Marshall variation250.0%25.0%
C10French, Paulsen variation105330.2%60.4%
C10French, Rubinstein variation285248.3%55.8%
C10French, Rubinstein, Capablanca line1060.0%50.0%
C11French defence22540.4%55.8%
C11French, Burn variation571944.9%52.8%
C11French, Henneberger variation1533.3%50.0%
C11French, Steinitz variation123237.7%54.4%
C11French, Steinitz, Boleslavsky variation409035.9%57.2%
C11French, Steinitz, Bradford attack1100.0%50.0%
C11French, Steinitz, Gledhill attack13433.6%52.6%
C11French, Swiss variation6045.0%54.2%
C12French, MacCutcheon variation16240.7%46.3%
C12French, MacCutcheon, Bernstein variation3125.8%58.1%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C12French, MacCutcheon, Chigorin variation8342.2%48.8%
C12French, MacCutcheon, Dr. Olland (Dutch) variation12740.9%59.1%
C12French, MacCutcheon, Duras variation425.0%62.5%
C12French, MacCutcheon, Grigoriev variation3158.1%54.8%
C12French, MacCutcheon, Janowski variation15337.9%57.5%
C12French, MacCutcheon, Lasker variation22627.4%59.7%
C12French, MacCutcheon, Lasker variation, 8...g642235.8%59.1%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
C12French, MacCutcheon, advance variation1526.7%20.0%
C13French, Albin-Alekhine-Chatard attack35930.9%55.3%
C13French, Albin-Alekhine-Chatard attack, Breyer variation9637.5%63.5%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation2020.0%65.0%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation6838.2%66.2%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation366.7%66.7%
C13French, classical2944.8%43.1%
C13French, classical, Anderssen variation2030.0%40.0%
C13French, classical, Anderssen-Richter variation1625.0%50.0%
C13French, classical, Frankfurt variation837.5%81.3%
C13French, classical, Tartakower variation3531.4%55.7%
C13French, classical, Vistaneckis (Nimzovich) variation137.7%57.7%
C14French, classical variation128.3%37.5%
C14French, classical, Alapin variation11547.0%53.9%
C14French, classical, Pollock variation1625.0%43.8%
C14French, classical, Rubinstein variation4337.2%60.5%
C14French, classical, Stahlberg variation650.0%58.3%
C14French, classical, Steinitz variation84335.9%58.3%
C14French, classical, Tarrasch variation1822.2%50.0%
C15French, Winawer (Nimzovich) variation114840.2%55.5%
C15French, Winawer, Alekhine (Maroczy) gambit28136.7%56.8%
C15French, Winawer, Alekhine gambit1338.5%57.7%
C15French, Winawer, Alekhine gambit, Kan variation5843.1%49.1%
C15French, Winawer, Kondratiyev variation1136.4%54.5%
C15French, Winawer, fingerslip variation6030.0%45.0%
C16French, Winawer, Petrosian variation26831.3%55.2%
C16French, Winawer, advance variation109932.4%56.6%
C17French, Winawer, advance variation10040.0%58.0%
C17French, Winawer, advance, 5.a348534.8%63.0%
C17French, Winawer, advance, Bogolyubov variation42238.9%51.9%
C17French, Winawer, advance, Rauzer variation2236.4%63.6%
C17French, Winawer, advance, Russian variation6939.1%51.4%
C18French, Winawer, advance variation61726.6%63.0%
C18French, Winawer, classical variation43631.9%58.8%
C19French, Winawer, advance, 6...Ne745735.4%60.0%
C19French, Winawer, advance, Smyslov variation19028.4%62.6%
C19French, Winawer, advance, poisoned pawn variation283733.7%61.4%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation83932.4%62.5%
C19French, Winawer, advance, positional main line113830.8%58.2%
C20Alapin's opening5230.8%59.6%
C20KP, Indian opening13036.9%46.2%
C20KP, King's head opening250.0%25.0%
C20KP, Lopez opening1838.9%30.6%
C20KP, Mengarini's opening2240.9%29.5%
C20KP, Napoleon's opening2842.9%60.7%
C20KP, Patzer opening12627.0%42.1%
C20King's pawn game10436.5%51.9%
C21Centre game34739.5%55.8%
C21Danish gambit27536.0%48.9%
C21Danish gambit, Collijn defence560.0%50.0%
C21Danish gambit, Schlechter defence1513.3%46.7%
C21Danish gambit, Soerensen defence21541.4%51.4%
C21Halasz gambit2231.8%43.2%
C22Centre game45737.2%46.0%
C22Centre game, Berger variation42438.4%53.2%
C22Centre game, Charousek variation862.5%56.3%
C22Centre game, Hall variation2740.7%38.9%
C22Centre game, Paulsen attack40137.7%53.2%
C22Centre game, l'Hermet variation60.0%50.0%
C23Bishop's opening34833.0%53.6%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C23Bishop's opening, Classical variation11140.5%52.7%
C23Bishop's opening, Lewis gambit40.0%75.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
C23Bishop's opening, Lopez gambit20.0%0.0%
C23Bishop's opening, MacDonnell double gambit250.0%25.0%
C23Bishop's opening, Philidor counter-attack21549.8%50.9%
C23Bishop's opening, Philidor variation944.4%55.6%
C23Bishop's opening, Wing gambit650.0%41.7%
C24Bishop's opening, Berlin defence175640.0%53.0%
C24Bishop's opening, Ponziani gambit2030.0%30.0%
C24Bishop's opening, Urusov gambit10036.0%37.0%
C24Bishop's opening, Urusov gambit, Panov variation450.0%50.0%
C25Vienna gambit16635.5%54.5%
C25Vienna game41935.6%57.4%
C25Vienna game, Max Lange defence4348.8%47.7%
C25Vienna, Paulsen variation20031.5%56.8%
C25Vienna, Pierce gambit2725.9%53.7%
C25Vienna, Steinitz gambit250.0%25.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation10.0%100.0%
C26Vienna game46140.6%54.1%
C26Vienna, Falkbeer variation11534.8%57.4%
C26Vienna, Mengarini variation2759.3%48.1%
C26Vienna, Paulsen-Mieses variation82839.5%52.6%
C27Boden-Kieseritsky gambit4334.9%33.7%
C27Boden-Kieseritsky gambit, Lichtenhein defence2128.6%52.4%
C27Vienna game21838.5%52.8%
C27Vienna, Alekhine variation3839.5%48.7%
C27Vienna, `Frankenstein-Dracula' variation175.9%79.4%
C28Vienna game62640.3%52.2%
C29Vienna gambit63036.0%50.1%
C29Vienna gambit, Bardeleben variation1631.3%53.1%
C29Vienna gambit, Breyer variation20232.7%52.5%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C29Vienna gambit, Paulsen attack5143.1%52.9%
C29Vienna gambit, Steinitz variation3243.8%46.9%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C30KGD, 2...Nf66829.4%60.3%
C30KGD, Keene's defence8629.1%64.5%
C30KGD, Mafia defence837.5%68.8%
C30KGD, Norwalde variation2213.6%79.5%
C30KGD, classical counter-gambit944.4%55.6%
C30KGD, classical variation26028.8%54.4%
C30KGD, classical, 4.c320330.5%59.1%
C30KGD, classical, Hanham variation650.0%58.3%
C30KGD, classical, Heath variation1346.2%53.8%
C30KGD, classical, Marshall attack977.8%50.0%
C30KGD, classical, Reti variation366.7%33.3%
C30KGD, classical, Soldatenkov variation728.6%28.6%
C30KGD, classical, Svenonius variation1100.0%50.0%
C30King's gambit29835.2%57.6%
C31KGD, Falkbeer counter-gambit29434.0%52.7%
C31KGD, Falkbeer, 3...e43839.5%48.7%
C31KGD, Falkbeer, 4.d35250.0%63.5%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C31KGD, Falkbeer, Morphy gambit1921.1%47.4%
C31KGD, Falkbeer, Nimzovich variation2142.9%50.0%
C31KGD, Falkbeer, Rubinstein variation2910.3%56.9%
C31KGD, Falkbeer, Tartakower variation6657.6%48.5%
C31KGD, Nimzovich counter-gambit29837.2%51.8%
C32KGD, Falkbeer, 5.de5834.5%51.7%
C32KGD, Falkbeer, Charousek gambit1163.6%59.1%
C32KGD, Falkbeer, Keres variation3540.0%54.3%
C32KGD, Falkbeer, Reti variation2030.0%50.0%
C32KGD, Falkbeer, main line, 7...Bf5911.1%72.2%
C33KGA, Breyer gambit333.3%50.0%
C33KGA, Carrera (Basman) gambit825.0%50.0%
C33KGA, Keres (Mason-Steinitz) gambit5742.1%43.9%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit1315.4%53.8%
C33KGA, Villemson (Steinitz) gambit1428.6%50.0%
C33KGA, bishop's gambit36436.0%50.1%
C33KGA, bishop's gambit, Anderssen variation633.3%50.0%
C33KGA, bishop's gambit, Bledow variation17626.7%41.8%
C33KGA, bishop's gambit, Boden defence850.0%50.0%
C33KGA, bishop's gambit, Bogolyubov variation8239.0%50.0%
C33KGA, bishop's gambit, Bryan counter-gambit20.0%0.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence3525.7%35.7%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
C33KGA, bishop's gambit, Jaenisch variation14039.3%47.5%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit1020.0%50.0%
C33KGA, bishop's gambit, Maurian defence4415.9%42.0%
C33KGA, bishop's gambit, McDonnell attack10.0%100.0%
C33KGA, bishop's gambit, Morphy variation5928.8%58.5%
C33KGA, bishop's gambit, Paulsen attack1936.8%44.7%
C33KGA, bishop's gambit, Ruy Lopez defence4042.5%53.8%
C33KGA, bishop's gambit, Steinitz defence10328.2%50.0%
C33KGA, bishop's gambit, classical defence60.0%33.3%
C33King's gambit accepted333.3%16.7%
C34KGA, Becker defence9630.2%50.5%
C34KGA, Bonsch-Osmolovsky variation20228.7%53.5%
C34KGA, Fischer defence29332.4%47.6%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C34KGA, Schallop defence22429.0%53.8%
C34King's knight's gambit4325.6%50.0%
C35KGA, Cunningham defence26528.7%52.1%
C35KGA, Cunningham, Euwe defence13023.8%47.3%
C36KGA, Abbazia defence (classical defence, modern defence[!])13242.4%59.1%
C36KGA, Abbazia defence, modern variation73339.2%48.0%
C37KGA, Blachly gambit3234.4%32.8%
C37KGA, Cochrane gambit425.0%37.5%
C37KGA, King's knight's gambit3560.0%52.9%
C37KGA, Muzio gambit944.4%33.3%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C37KGA, Quaade gambit4141.5%37.8%
C37KGA, Rosentreter gambit3234.4%42.2%
C37KGA, Salvio gambit1020.0%60.0%
C37KGA, Salvio gambit, Anderssen counter-attack50.0%60.0%
C37KGA, Silberschmidt gambit333.3%50.0%
C38KGA, Hanstein gambit1225.0%62.5%
C38KGA, Philidor gambit2520.0%34.0%
C38KGA, Philidor gambit, Schultz variation1060.0%30.0%
C38King's knight's gambit5236.5%24.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C39KGA, Kieseritsky, Berlin defence8235.4%45.7%
C39KGA, Kieseritsky, Berlin defence, 6.Bc46431.3%42.2%
C39KGA, Kieseritsky, Brentano (Campbell) defence20.0%50.0%
C39KGA, Kieseritsky, Brentano defence20.0%50.0%
C39KGA, Kieseritsky, Brentano defence, Caro variation3100.0%50.0%
C39KGA, Kieseritsky, Kolisch defence13943.9%47.1%
C39KGA, Kieseritsky, Neumann defence2540.0%60.0%
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%
C39KGA, Kieseritsky, Rice gambit1921.1%26.3%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence6944.9%41.3%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence1241.7%45.8%
C39King's knight's gambit1323.1%50.0%
C40Greco defence1225.0%45.8%
C40Gunderam defence12532.0%64.8%
C40King's knight opening20.0%50.0%
C40Latvian counter-gambit33529.6%56.9%
C40Latvian gambit, 3.Bc41560.0%56.7%
C40Latvian, Fraser defence4738.3%59.6%
C40Latvian, Nimzovich variation20.0%50.0%
C40Latvian, Polerio variation2227.3%40.9%
C40QP counter-gambit (elephant gambit)3250.0%65.6%
C40QP counter-gambit, Maroczy gambit540.0%80.0%
C41Philidor's defence47935.3%59.4%
C41Philidor, Boden variation850.0%50.0%
C41Philidor, Hanham variation5534.5%60.9%
C41Philidor, Hanham, Delmar variation1428.6%42.9%
C41Philidor, Hanham, Kmoch variation10.0%100.0%
C41Philidor, Hanham, Krause variation1850.0%47.2%
C41Philidor, Hanham, Schlechter variation3551.4%65.7%
C41Philidor, Hanham, Steiner variation2437.5%64.6%
C41Philidor, Improved Hanham variation134138.4%57.6%
C41Philidor, Larsen variation6425.0%65.6%
C41Philidor, Lopez counter-gambit30.0%66.7%
C41Philidor, Nimzovich (Jaenisch) variation2733.3%50.0%
C41Philidor, Nimzovich variation6642.4%59.1%
C41Philidor, Nimzovich, Klein variation1353.8%57.7%
C41Philidor, Nimzovich, Larobok variation7448.6%37.8%
C41Philidor, Nimzovich, Locock variation450.0%50.0%
C41Philidor, Nimzovich, Rellstab variation4235.7%65.5%
C41Philidor, Nimzovich, Sokolsky variation1275.0%62.5%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
C41Philidor, Paulsen attack250.0%25.0%
C41Philidor, Philidor counter-gambit2015.0%67.5%
C41Philidor, Philidor counter-gambit, Zukertort variation1050.0%65.0%
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%
C41Philidor, Steinitz variation20.0%0.0%
C41Philidor, exchange variation102837.5%59.0%
C42Petrov three knights game38938.8%58.5%
C42Petrov's defence39041.0%52.6%
C42Petrov, Cochrane gambit7921.5%36.1%
C42Petrov, Cozio (Lasker) attack55949.6%52.3%
C42Petrov, Damiano variation3046.7%53.3%
C42Petrov, French attack966.7%66.7%
C42Petrov, Italian variation6527.7%49.2%
C42Petrov, Kaufmann attack29546.8%52.2%
C42Petrov, Nimzovich attack148645.1%55.0%
C42Petrov, Paulsen attack21542.3%50.0%
C42Petrov, classical attack103647.7%57.6%
C42Petrov, classical attack, Berger variation1764.7%55.9%
C42Petrov, classical attack, Chigorin variation64640.7%57.5%
C42Petrov, classical attack, Jaenisch variation178046.0%58.4%
C42Petrov, classical attack, Krause variation944.4%33.3%
C42Petrov, classical attack, Marshall variation114144.2%57.8%
C42Petrov, classical attack, Mason variation13743.1%56.6%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C42Petrov, classical attack, close variation19844.4%58.6%
C43Petrov, Urusov gambit1216.7%66.7%
C43Petrov, modern (Steinitz) attack5644.6%54.5%
C43Petrov, modern attack, Bardeleben variation837.5%56.3%
C43Petrov, modern attack, Steinitz variation250.0%75.0%
C43Petrov, modern attack, Symmetrical variation305244.5%53.0%
C43Petrov, modern attack, Trifunovic variation6546.2%49.2%
C43Petrov, modern attack, main line22547.6%57.1%
C44Dresden opening1827.8%41.7%
C44Inverted Hanham4429.5%46.6%
C44Inverted Hungarian3644.4%55.6%
C44King's pawn game12631.0%48.8%
C44Konstantinopolsky opening4438.6%62.5%
C44Ponziani counter-gambit12840.6%60.2%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C44Ponziani opening36531.5%46.2%
C44Ponziani, Caro variation26544.2%49.6%
C44Ponziani, Fraser defence6937.7%65.2%
C44Ponziani, Jaenisch counter-attack240844.5%52.1%
C44Ponziani, Leonhardt variation12835.2%48.8%
C44Ponziani, Reti variation4035.0%57.5%
C44Ponziani, Romanishin variation2433.3%50.0%
C44Ponziani, Steinitz variation51441.4%46.4%
C44Scotch gambit12841.4%57.4%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Scotch gambit, Benima defence5738.6%56.1%
C44Scotch gambit, Dubois-Reti defence38941.9%53.6%
C44Scotch gambit, Hanneken variation10.0%100.0%
C44Scotch opening1442.9%42.9%
C44Scotch, Goering gambit23541.7%55.3%
C44Scotch, Goering gambit, Bardeleben variation1540.0%46.7%
C44Scotch, Lolli variation2231.8%56.8%
C44Scotch, Relfsson gambit ('MacLopez')1040.0%50.0%
C44Tayler opening425.0%37.5%
C45Scotch game290242.4%54.3%
C45Scotch, Blackburne attack2250.0%47.7%
C45Scotch, Blumenfeld attack1637.5%31.3%
C45Scotch, Ghulam Kassim variation875.0%50.0%
C45Scotch, Horwitz attack4032.5%56.3%
C45Scotch, Meitner variation3754.1%54.1%
C45Scotch, Mieses variation163642.1%53.7%
C45Scotch, Paulsen attack1338.5%57.7%
C45Scotch, Potter variation65939.5%52.5%
C45Scotch, Pulling counter-attack520.0%70.0%
C45Scotch, Romanishin variation7339.7%58.2%
C45Scotch, Schmidt variation81450.0%47.9%
C45Scotch, Steinitz variation4632.6%57.6%
C45Scotch, Tartakower variation1833.3%38.9%
C46Four knights game90540.9%50.3%
C46Four knights, Gunsberg variation14643.8%49.3%
C46Four knights, Italian variation23643.6%47.7%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C46Three knights game36330.9%59.8%
C46Three knights, Schlechter variation4438.6%53.4%
C46Three knights, Steinitz variation24227.7%56.4%
C46Three knights, Steinitz, Rosenthal variation2744.4%48.1%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C47Four knights, Belgrade gambit13043.8%52.7%
C47Four knights, Scotch variation2832.1%51.8%
C47Four knights, Scotch, 4...exd453852.2%54.0%
C47Four knights, Scotch, Krause variation5438.9%63.9%
C48Four knights, Bardeleben variation850.0%50.0%
C48Four knights, Marshall variation1020.0%50.0%
C48Four knights, Ranken variation3345.5%62.1%
C48Four knights, Rubinstein counter-gambit131240.8%52.1%
C48Four knights, Rubinstein counter-gambit, 5.Be21040.0%40.0%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1952.6%47.4%
C48Four knights, Rubinstein counter-gambit, Henneberger variation8145.7%50.0%
C48Four knights, Rubinstein counter-gambit, exchange variation18966.1%52.1%
C48Four knights, Spanish variation32748.3%55.0%
C48Four knights, Spanish, classical defence23944.4%50.2%
C48Four knights, Spielmann variation862.5%43.8%
C49Four knights9051.1%47.8%
C49Four knights, Gunsberg counter-attack560.0%50.0%
C49Four knights, Janowski variation1936.8%65.8%
C49Four knights, Nimzovich (Paulsen) variation7957.0%57.6%
C49Four knights, Svenonius variation560.0%50.0%
C49Four knights, double Ruy Lopez25442.1%56.1%
C49Four knights, symmetrical variation21741.0%55.5%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C49Four knights, symmetrical, Capablanca variation2454.2%60.4%
C49Four knights, symmetrical, Maroczy system8145.7%53.7%
C49Four knights, symmetrical, Metger unpin35937.3%51.0%
C49Four knights, symmetrical, Pillsbury variation6845.6%44.9%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C50Giuoco Pianissimo273838.3%53.4%
C50Giuoco Pianissimo, Canal variation21442.5%52.1%
C50Giuoco Pianissimo, Italian four knights variation52336.7%51.6%
C50Giuoco Piano174840.3%52.9%
C50Giuoco Piano, four knights variation6836.8%53.7%
C50Hungarian defence21638.4%49.8%
C50King's pawn game27935.5%60.4%
C50Rousseau gambit333.3%50.0%
C51Evans counter-gambit3630.6%56.9%
C51Evans gambit1136.4%63.6%
C51Evans gambit declined6238.7%53.2%
C51Evans gambit declined, 5.a420441.2%46.6%
C51Evans gambit declined, Lange variation20.0%0.0%
C51Evans gambit declined, Showalter variation4847.9%55.2%
C51Evans gambit, 5...Be77536.0%60.7%
C51Evans gambit, Cordel variation10246.1%45.6%
C51Evans gambit, Fraser attack1127.3%59.1%
C51Evans gambit, Goering attack333.3%83.3%
C51Evans gambit, Morphy attack2839.3%55.4%
C51Evans gambit, Paulsen variation2025.0%67.5%
C51Evans gambit, Stone-Ware variation26131.8%54.2%
C51Evans gambit, Ulvestad variation20.0%100.0%
C51Evans gambit, normal variation3818.4%43.4%
C52Evans gambit39339.2%48.6%
C52Evans gambit, Alapin-Steinitz variation450.0%25.0%
C52Evans gambit, Lasker defence1127.3%22.7%
C52Evans gambit, Leonhardt variation633.3%50.0%
C52Evans gambit, Levenfish variation616.7%25.0%
C52Evans gambit, Richardson attack1936.8%28.9%
C52Evans gambit, Sanders-Alapin variation20.0%100.0%
C52Evans gambit, Tartakower attack7945.6%45.6%
C52Evans gambit, Waller attack825.0%87.5%
C52Evans gambit, compromised defence4822.9%71.9%
C52Evans gambit, compromised defence, Paulsen variation1723.5%58.8%
C52Evans gambit, compromised defence, Potter variation10.0%100.0%
C53Giuoco Piano301338.7%52.1%
C53Giuoco Piano, Anderssen variation3256.3%43.8%
C53Giuoco Piano, Bird's attack19732.5%51.8%
C53Giuoco Piano, Eisinger variation20.0%100.0%
C53Giuoco Piano, LaBourdonnais variation5345.3%56.6%
C53Giuoco Piano, Mestel variation1216.7%66.7%
C53Giuoco Piano, centre-holding variation8243.9%61.0%
C53Giuoco Piano, close variation13236.4%59.1%
C54Giuoco Piano22453.1%51.6%
C54Giuoco Piano, Moeller (Therkatz) attack3847.4%47.4%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C55Giuoco piano20.0%50.0%
C55Two knights defence12039.2%49.6%
C55Two knights defence (Modern bishop's opening)177538.4%56.0%
C55Two knights defence, Keidanz variation2100.0%50.0%
C55Two knights defence, Perreux variation3652.8%54.2%
C55Two knights, Max Lange attack4233.3%59.5%
C55Two knights, Max Lange attack, Krause variation450.0%75.0%
C55Two knights, Max Lange attack, Loman defence20.0%50.0%
C55Two knights, Max Lange attack, Marshall variation922.2%66.7%
C55Two knights, Max Lange attack, Rubinstein variation1100.0%50.0%
C55Two knights, Max Lange attack, Schlechter variation2955.2%51.7%
C55Two knights, Max Lange attack, Steinitz variation1637.5%68.8%
C56Two knights defence15347.1%49.0%
C56Two knights defence, Canal variation540.0%40.0%
C57Two knights defence2025.0%42.5%
C57Two knights defence, Fegatello attack8923.6%52.2%
C57Two knights defence, Fegatello attack, Leonhardt variation922.2%55.6%
C57Two knights defence, Fegatello attack, Polerio defence40.0%100.0%
C57Two knights defence, Fritz variation9739.2%49.5%
C57Two knights defence, Fritz, Gruber variation1435.7%46.4%
C57Two knights defence, Lolli attack2035.0%57.5%
C57Two knights defence, Pincus variation1040.0%30.0%
C57Two knights defence, Ulvestad variation11050.9%46.4%
C57Two knights defence, Wilkes Barre (Traxler) variation12634.1%57.5%
C58Two knights defence31835.5%56.1%
C58Two knights defence, Blackburne variation30.0%66.7%
C58Two knights defence, Bogolyubov variation7930.4%44.3%
C58Two knights defence, Colman variation8433.3%46.4%
C58Two knights defence, Kieseritsky variation4228.6%59.5%
C58Two knights defence, Paoli variation933.3%72.2%
C58Two knights defence, Yankovich variation1827.8%25.0%
C59Two knights defence20438.2%49.0%
C59Two knights defence, Goering variation812.5%31.3%
C59Two knights defence, Steinitz variation39731.5%48.2%
C60Ruy Lopez (Spanish opening)7832.1%55.8%
C60Ruy Lopez, Cozio defence52038.3%52.6%
C60Ruy Lopez, Cozio defence, Paulsen variation6636.4%66.7%
C60Ruy Lopez, Lucena defence1241.7%45.8%
C60Ruy Lopez, Nuernberg variation40.0%50.0%
C60Ruy Lopez, Vinogradov variation250.0%75.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence57440.6%53.4%
C61Ruy Lopez, Bird's defence59136.2%56.0%
C61Ruy Lopez, Bird's defence, Paulsen variation850.0%62.5%
C62Ruy Lopez, old Steinitz defence46737.3%54.8%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation2245.5%54.5%
C63Ruy Lopez, Schliemann defence51042.5%57.5%
C63Ruy Lopez, Schliemann defence, Berger variation50044.0%56.4%
C64Ruy Lopez, Cordel gambit9740.2%56.2%
C64Ruy Lopez, classical (Cordel) defence33440.4%53.1%
C64Ruy Lopez, classical defence, 4.c336341.9%56.5%
C64Ruy Lopez, classical defence, Benelux variation 45639.0%55.5%
C64Ruy Lopez, classical defence, Boden variation20.0%50.0%
C64Ruy Lopez, classical defence, Charousek variation1030.0%65.0%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C65Ruy Lopez, Berlin defence483739.3%52.0%
C65Ruy Lopez, Berlin defence, 4.O-O24240.5%58.7%
C65Ruy Lopez, Berlin defence, Anderssen variation250.0%75.0%
C65Ruy Lopez, Berlin defence, Beverwijk variation61938.8%57.2%
C65Ruy Lopez, Berlin defence, Duras variation2937.9%46.6%
C65Ruy Lopez, Berlin defence, Kaufmann variation3847.4%55.3%
C65Ruy Lopez, Berlin defence, Mortimer variation2751.9%44.4%
C65Ruy Lopez, Berlin defence, Nyholm attack11553.9%53.0%
C66Ruy Lopez, Berlin defence, 4.O-O, d616142.9%58.1%
C66Ruy Lopez, Berlin defence, hedgehog variation12450.8%57.7%
C66Ruy Lopez, closed Berlin defence, Bernstein variation2445.8%60.4%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
C66Ruy Lopez, closed Berlin defence, Showalter variation6847.1%57.4%
C66Ruy Lopez, closed Berlin defence, Wolf variation6157.4%56.6%
C67Ruy Lopez, Berlin defence, Cordel variation7835.9%61.5%
C67Ruy Lopez, Berlin defence, Minckwitz variation4946.9%60.2%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation4742.6%61.7%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C67Ruy Lopez, Berlin defence, Winawer attack3135.5%69.4%
C67Ruy Lopez, Berlin defence, Zukertort variation2055.0%62.5%
C67Ruy Lopez, Berlin defence, open variation463547.4%53.6%
C67Ruy Lopez, open Berlin defence, 5...Be79940.4%52.5%
C67Ruy Lopez, open Berlin defence, Showalter variation2429.2%47.9%
C67Ruy Lopez, open Berlin defence, l'Hermet variation13158.8%50.0%
C68Ruy Lopez, exchange variation10435.6%54.3%
C68Ruy Lopez, exchange, Alekhine variation2638.5%46.2%
C68Ruy Lopez, exchange, Keres variation16945.6%50.6%
C68Ruy Lopez, exchange, Romanovsky variation4434.1%48.9%
C69Ruy Lopez, exchange variation, 5.O-O110541.4%53.3%
C69Ruy Lopez, exchange variation, Alapin gambit36842.1%52.0%
C69Ruy Lopez, exchange, Bronstein variation79637.3%50.1%
C69Ruy Lopez, exchange, Gligoric variation87543.8%54.8%
C70Ruy Lopez18137.6%53.6%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C70Ruy Lopez, Caro variation10641.5%58.5%
C70Ruy Lopez, Classical defence deferred12339.8%58.1%
C70Ruy Lopez, Cozio defence deferred52441.4%54.3%
C70Ruy Lopez, Graz variation1266.7%58.3%
C70Ruy Lopez, Schliemann defence deferred3735.1%60.8%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation17439.1%63.2%
C70Ruy Lopez, fianchetto defence deferred11049.1%56.4%
C71Ruy Lopez, modern Steinitz defence18641.9%55.4%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation23938.9%56.7%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C72Ruy Lopez, modern Steinitz defence, 5.O-O87040.5%57.9%
C73Ruy Lopez, modern Steinitz defence, Alapin variation28631.8%50.2%
C73Ruy Lopez, modern Steinitz defence, Richter variation25548.6%50.2%
C74Ruy Lopez, Siesta, Kopayev variation19032.6%55.3%
C74Ruy Lopez, modern Steinitz defence18831.4%62.0%
C74Ruy Lopez, modern Steinitz defence, siesta variation11833.1%49.6%
C75Ruy Lopez, modern Steinitz defence23444.0%52.8%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation17729.9%58.5%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation53035.8%53.4%
C77Ruy Lopez, Anderssen variation169643.0%52.1%
C77Ruy Lopez, Morphy defence28539.3%55.8%
C77Ruy Lopez, Morphy defence, Duras variation7538.7%59.3%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)10446.2%44.2%
C77Ruy Lopez, Wormald (Alapin) attack53342.8%53.3%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C77Ruy Lopez, four knights (Tarrasch) variation21543.3%54.7%
C78Ruy Lopez, ...b5 & ...d65935.6%56.8%
C78Ruy Lopez, 5.O-O133446.5%54.3%
C78Ruy Lopez, Archangelsk (counterthrust) variation185142.9%54.9%
C78Ruy Lopez, Moeller defence69942.1%54.4%
C78Ruy Lopez, Rabinovich variation10.0%0.0%
C78Ruy Lopez, Wing attack1643.8%53.1%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)45338.6%54.9%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1266.7%58.3%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation3351.5%56.1%
C80Ruy Lopez, open (Tarrasch) defence7342.5%62.3%
C80Ruy Lopez, open, 6.d45040.0%44.0%
C80Ruy Lopez, open, 7.Bb349240.4%52.9%
C80Ruy Lopez, open, 8...Be6130438.3%44.0%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C80Ruy Lopez, open, Bernstein variation102249.3%62.9%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2744.4%44.4%
C80Ruy Lopez, open, Friess attack1118.2%54.5%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
C80Ruy Lopez, open, Riga variation1050.0%65.0%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
C80Ruy Lopez, open, Tartakower variation1361.5%46.2%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C81Ruy Lopez, open, Howell attack27250.0%54.8%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1233.3%50.0%
C82Ruy Lopez, open, 9.c3825.0%75.0%
C82Ruy Lopez, open, Berlin variation2828.6%67.9%
C82Ruy Lopez, open, Dilworth variation17240.7%59.9%
C82Ruy Lopez, open, Italian variation10150.5%62.9%
C82Ruy Lopez, open, Motzko attack8046.3%55.6%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation1942.1%73.7%
C82Ruy Lopez, open, St. Petersburg variation21341.8%65.0%
C83Ruy Lopez, open, 9...Be7, 10.Re14637.0%53.3%
C83Ruy Lopez, open, Breslau variation366.7%66.7%
C83Ruy Lopez, open, Malkin variation1758.8%58.8%
C83Ruy Lopez, open, classical defence22948.5%58.7%
C84Ruy Lopez, closed defence176941.4%52.2%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C84Ruy Lopez, closed, centre attack18948.7%47.6%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)152939.7%49.1%
C86Ruy Lopez, Worrall attack3250.0%56.3%
C86Ruy Lopez, Worrall attack, sharp line30241.4%52.2%
C86Ruy Lopez, Worrall attack, solid line15339.9%50.0%
C87Ruy Lopez, closed, Averbach variation40940.8%59.3%
C88Ruy Lopez, Trajkovic counter-attack67142.2%52.2%
C88Ruy Lopez, closed132841.8%53.2%
C88Ruy Lopez, closed, 7...O-O339041.1%52.4%
C88Ruy Lopez, closed, 7...d6, 8.d42433.3%25.0%
C88Ruy Lopez, closed, 8.c33644.4%55.6%
C88Ruy Lopez, closed, Balla variation4637.0%55.4%
C88Ruy Lopez, closed, anti-Marshall 8.a4184440.5%54.1%
C89Ruy Lopez, Marshall counter-attack58252.6%54.5%
C89Ruy Lopez, Marshall counter-attack, 11...c621845.9%55.5%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
C89Ruy Lopez, Marshall, main line, 12.d2d422940.6%62.7%
C89Ruy Lopez, Marshall, main line, 14...Qh347250.8%51.5%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
C90Ruy Lopez, closed (with ...d6)121837.4%51.4%
C90Ruy Lopez, closed, Lutikov variation4151.2%54.9%
C90Ruy Lopez, closed, Pilnik variation88035.9%51.9%
C90Ruy Lopez, closed, Suetin variation9438.3%58.5%
C91Ruy Lopez, closed, 9.d4127539.5%58.0%
C91Ruy Lopez, closed, Bogolyubov variation394043.5%53.7%
C92Ruy Lopez, closed, 9.h343343.0%52.9%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)203038.8%56.7%
C92Ruy Lopez, closed, Keres (9...a5) variation2055.0%47.5%
C92Ruy Lopez, closed, Kholmov variation13331.6%65.4%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation34242.7%63.7%
C93Ruy Lopez, closed, Smyslov defence26140.6%58.6%
C94Ruy Lopez, closed, Breyer defence10937.6%57.3%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation79939.5%56.4%
C95Ruy Lopez, closed, Breyer, Gligoric variation6043.3%58.3%
C95Ruy Lopez, closed, Breyer, Simagin variation2540.0%56.0%
C96Ruy Lopez, closed (10...c5)70033.3%65.4%
C96Ruy Lopez, closed (8...Na5)3748.6%62.2%
C96Ruy Lopez, closed, Borisenko defence4139.0%58.5%
C96Ruy Lopez, closed, Keres (...Nd7) defence23436.8%65.8%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C97Ruy Lopez, closed, Chigorin defence82430.9%63.3%
C98Ruy Lopez, closed, Chigorin, 12...Nc615131.1%63.2%
C99Ruy Lopez, closed, Chigorin, 12...c5d491340.2%62.9%
D00Blackmar gambit23538.3%40.4%
D00Blackmar-Diemer gambit6743.3%42.5%
D00Blackmar-Diemer, Euwe defence3724.3%47.3%
D00Blackmar-Diemer, Lemberg counter-gambit2020.0%60.0%
D00Levitsky attack (Queen's bishop attack)273735.1%50.9%
D00Queen's pawn game127637.0%50.3%
D00Queen's pawn, Anti-Veresov450.0%50.0%
D00Queen's pawn, Chigorin variation86432.3%51.2%
D00Queen's pawn, Mason variation161137.5%53.0%
D00Queen's pawn, Mason variation, Steinitz counter-gambit73338.9%51.9%
D00Queen's pawn, stonewall attack7532.0%41.3%
D01Richter-Veresov attack84831.4%48.3%
D01Richter-Veresov attack, Richter variation2725.9%57.4%
D01Richter-Veresov attack, Veresov variation3441.2%47.1%
D02Queen's bishop game197939.6%53.3%
D02Queen's pawn game688540.4%53.1%
D02Queen's pawn game, Chigorin variation69839.0%56.0%
D02Queen's pawn game, Krause variation66340.1%54.8%
D03Torre attack (Tartakower variation)88938.2%50.7%
D04Queen's pawn game132738.6%51.7%
D05Colle system28046.1%52.3%
D05Queen's pawn game91836.2%52.4%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation41137.2%54.6%
D05Queen's pawn game, Zukertort variation5543.6%58.2%
D06QGD, Grau (Sahovic) defence32633.1%59.5%
D06QGD, Marshall defence35341.1%54.8%
D06QGD, symmetrical (Austrian) defence15745.2%60.2%
D07QGD, Chigorin defence113935.9%57.3%
D07QGD, Chigorin defence, Janowski variation12735.4%62.6%
D08QGD, Albin counter-gambit59838.0%54.9%
D08QGD, Albin counter-gambit, Alapin variation12548.8%57.2%
D08QGD, Albin counter-gambit, Balogh variation2128.6%76.2%
D08QGD, Albin counter-gambit, Janowski variation2123.8%73.8%
D08QGD, Albin counter-gambit, Krenosz variation1838.9%58.3%
D08QGD, Albin counter-gambit, Lasker trap50.0%60.0%
D09QGD, Albin counter-gambit, 5.g344340.9%56.8%
D10QGD Slav defence498940.1%54.2%
D10QGD Slav defence, Alekhine variation31638.0%57.3%
D10QGD Slav defence, exchange variation200543.8%55.8%
D10QGD Slav, Winawer counter-gambit23631.8%53.2%
D11QGD Slav, 3.Nf3384340.6%55.2%
D11QGD Slav, 4.e3567642.3%55.3%
D11QGD Slav, Breyer variation26041.9%59.0%
D12QGD Slav, 4.e3 Bf5392540.3%54.6%
D12QGD Slav, Amsterdam variation2254.5%45.5%
D12QGD Slav, exchange variation11037.3%48.6%
D13QGD Slav, exchange variation88247.8%55.3%
D14QGD Slav, exchange variation, 6.Bf4 Bf575451.1%52.1%
D14QGD Slav, exchange, Trifunovic variation25251.6%52.4%
D15QGD Slav accepted14139.0%50.7%
D15QGD Slav, 4.Nc3519740.3%55.0%
D15QGD Slav, 5.e3 (Alekhine variation)21231.6%56.4%
D15QGD Slav, Schlechter variation40543.0%59.5%
D15QGD Slav, Slav gambit4831.3%63.5%
D15QGD Slav, Suechting variation20832.2%60.3%
D15QGD Slav, Tolush-Geller gambit14727.2%42.2%
D16QGD Slav accepted, Alapin variation24436.9%64.3%
D16QGD Slav, Smyslov variation10139.6%60.4%
D16QGD Slav, Soultanbeieff variation50849.6%52.6%
D16QGD Slav, Steiner variation29236.6%63.2%
D17QGD Slav, Carlsbad variation50938.1%61.1%
D17QGD Slav, Czech defence48047.9%55.4%
D17QGD Slav, Krause attack84439.5%58.4%
D17QGD Slav, Wiesbaden variation70942.6%56.7%
D18QGD Slav, Dutch variation40541.5%59.8%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D19QGD Slav, Dutch variation159740.3%56.6%
D19QGD Slav, Dutch variation, main line27642.0%58.0%
D19QGD Slav, Dutch, Saemisch variation250.0%25.0%
D20QGA, 3.e4354140.2%56.4%
D20QGA, Linares variation10335.9%58.7%
D20Queen's gambit accepted124845.0%54.9%
D21QGA, 3.Nf345441.6%57.8%
D21QGA, Alekhine defense, Borisenko-Furman variation4131.7%45.1%
D21QGA, Ericson variation60.0%33.3%
D22QGA, Alekhine defence49340.8%57.3%
D22QGA, Alekhine defence, Alatortsev variation1457.1%42.9%
D22QGA, Haberditz variation20754.6%54.3%
D23QGA, Mannheim variation50641.5%53.8%
D23Queen's gambit accepted6648.5%53.0%
D24QGA, 4.Nc334438.1%51.9%
D24QGA, Bogolyubov variation20744.9%56.3%
D25QGA, 4.e319635.2%57.9%
D25QGA, Flohr variation11627.6%63.8%
D25QGA, Janowsky-Larsen variation57940.2%58.5%
D25QGA, Smyslov variation10851.9%60.2%
D26QGA, 4...e633344.4%52.9%
D26QGA, classical variation89751.7%53.4%
D26QGA, classical variation, 6.O-O19648.5%58.9%
D26QGA, classical, Furman variation475.0%37.5%
D26QGA, classical, Steinitz variation13453.0%60.8%
D27QGA, classical, 6...a6447851.9%55.1%
D27QGA, classical, Geller variation9252.2%57.6%
D27QGA, classical, Rubinstein variation159848.2%56.4%
D28QGA, classical, 7...b529750.5%55.2%
D28QGA, classical, 7.Qe26750.7%61.2%
D28QGA, classical, Flohr variation10.0%0.0%
D29QGA, classical, 8...Bb736541.1%47.4%
D29QGA, classical, Smyslov variation4551.1%43.3%
D30QGD106946.9%52.3%
D30QGD Slav52342.6%54.4%
D30QGD Slav, Semmering variation4337.2%48.8%
D30QGD, Capablanca variation3928.2%60.3%
D30QGD, Capablanca-Duras variation43244.2%52.9%
D30QGD, Hastings variation76147.2%52.1%
D30QGD, Stonewall variation450.0%75.0%
D30QGD, Vienna variation110852.9%52.1%
D30Queen's gambit declined733644.5%55.4%
D31QGD, 3.Nc3123638.6%54.5%
D31QGD, Alapin variation1723.5%64.7%
D31QGD, Charousek (Petrosian) variation206345.8%53.9%
D31QGD, Janowski variation30840.6%54.4%
D31QGD, semi-Slav145339.6%53.8%
D31QGD, semi-Slav, Abrahams variation16534.5%41.5%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
D31QGD, semi-Slav, Marshall gambit123842.7%54.0%
D31QGD, semi-Slav, Noteboom variation34938.4%50.7%
D32QGD, Tarrasch defence54645.4%53.1%
D32QGD, Tarrasch defence, 4.cd ed4233.3%42.9%
D32QGD, Tarrasch defence, Marshall gambit1442.9%57.1%
D32QGD, Tarrasch defence, Tarrasch gambit1553.3%46.7%
D32QGD, Tarrasch, von Hennig-Schara gambit10141.6%61.4%
D33QGD, Tarrasch, Folkestone (Swedish) variation22647.8%55.8%
D33QGD, Tarrasch, Prague variation20841.3%52.9%
D33QGD, Tarrasch, Schlechter-Rubinstein system6134.4%56.6%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%25.0%
D33QGD, Tarrasch, Wagner variation4955.1%54.1%
D34QGD, Tarrasch, Bogolyubov variation250.0%25.0%
D34QGD, Tarrasch, Prague variation, 7...Be720044.5%55.3%
D34QGD, Tarrasch, Prague variation, 9.Bg561546.8%58.4%
D34QGD, Tarrasch, Prague variation, Normal position73249.9%55.8%
D34QGD, Tarrasch, Reti variation3661.1%61.1%
D35QGD, 3...Nf613736.5%51.1%
D35QGD, Harrwitz attack26950.2%55.6%
D35QGD, exchange variation43542.5%56.0%
D35QGD, exchange, Saemisch variation38846.9%53.9%
D35QGD, exchange, positional line126740.8%54.2%
D35QGD, exchange, positional line, 5...c6100742.6%55.7%
D36QGD, exchange, positional line, 6.Qc246443.3%54.0%
D37QGD, 4.Nf3695946.2%53.3%
D37QGD, classical variation (5.Bf4)506345.6%55.1%
D38QGD, Ragozin variation554945.9%52.8%
D39QGD, Ragozin, Vienna variation179049.1%51.2%
D40QGD, Semi-Tarrasch defence45642.8%54.9%
D40QGD, Semi-Tarrasch defence, Pillsbury variation9048.9%57.8%
D40QGD, Semi-Tarrasch, Levenfish variation540.0%60.0%
D40QGD, Semi-Tarrasch, symmetrical variation2544.0%54.0%
D41QGD, Semi-Tarrasch with e331645.6%57.3%
D41QGD, Semi-Tarrasch, 5.cd77248.7%56.3%
D41QGD, Semi-Tarrasch, Kmoch variation1070.0%45.0%
D41QGD, Semi-Tarrasch, San Sebastian variation2536.0%78.0%
D42QGD, Semi-Tarrasch, 7.Bd338946.8%54.0%
D43QGD semi-Slav880041.7%53.1%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D44QGD semi-Slav, 5.Bg5 dc22446.0%50.2%
D44QGD semi-Slav, Botvinnik system (anti-Meran)8734.5%55.2%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D44QGD semi-Slav, anti-Meran gambit85334.5%58.9%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation17731.1%65.8%
D44QGD semi-Slav, anti-Meran, Szabo variation2821.4%35.7%
D45QGD semi-Slav, 5...Nd769138.5%52.2%
D45QGD semi-Slav, 5.e348938.4%56.9%
D45QGD semi-Slav, Rubinstein (anti-Meran) system2133.3%45.2%
D45QGD semi-Slav, Stoltz variation1288343.6%53.2%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)271143.9%54.3%
D45QGD semi-Slav, stonewall defence1442.9%50.0%
D46QGD semi-Slav, 6.Bd34235.7%65.5%
D46QGD semi-Slav, Bogolyubov variation18544.3%55.7%
D46QGD semi-Slav, Chigorin defence45845.6%54.5%
D46QGD semi-Slav, Romih variation19035.3%63.9%
D47QGD semi-Slav, 7.Bc47533.3%55.3%
D47QGD semi-Slav, Meran variation143149.5%54.1%
D47QGD semi-Slav, Meran, Wade variation713739.7%53.5%
D47QGD semi-Slav, neo-Meran (Lundin variation)33549.3%54.5%
D48QGD semi-Slav, Meran234.3%41.3%
D48QGD semi-Slav, Meran, 8...a6146449.3%49.0%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
D48QGD semi-Slav, Meran, Reynolds' variation79539.5%56.0%
D48QGD semi-Slav, Meran, old main line12335.8%52.0%
D49QGD semi-Slav, Meran, Blumenfeld variation20343.8%53.4%
D49QGD semi-Slav, Meran, Rabinovich variation7830.8%47.4%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
D49QGD semi-Slav, Meran, Sozin variation16943.8%47.3%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
D50QGD, 4.Bg546438.6%57.9%
D50QGD, Been-Koomen variation3452.9%47.1%
D50QGD, Canal (Venice) variation1030.0%55.0%
D50QGD, Semi-Tarrasch6850.0%51.5%
D50QGD, Semi-Tarrasch, Krause variation2100.0%50.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1540.0%53.3%
D51QGD4845.8%58.3%
D51QGD, 4.Bg5 Nbd710540.0%53.3%
D51QGD, 5...c621448.1%50.2%
D51QGD, Alekhine variation40.0%50.0%
D51QGD, Capablanca anti-Cambridge Springs variation4742.6%59.6%
D51QGD, Manhattan variation2245.5%54.5%
D51QGD, Rochlin variation1154.5%45.5%
D52QGD23039.1%55.7%
D52QGD, Cambridge Springs defence4746.8%46.8%
D52QGD, Cambridge Springs defence, 7.cd7330.1%54.8%
D52QGD, Cambridge Springs defence, Argentine variation2128.6%42.9%
D52QGD, Cambridge Springs defence, Bogoljubow variation50649.4%55.7%
D52QGD, Cambridge Springs defence, Capablanca variation3735.1%60.8%
D52QGD, Cambridge Springs defence, Rubinstein variation20738.6%56.0%
D52QGD, Cambridge Springs defence, Yugoslav variation50738.1%56.3%
D53QGD, 4.Bg5 Be7120945.6%55.4%
D53QGD, 4.Bg5 Be7, 5.e3 O-O9144.0%52.7%
D53QGD, Lasker variation633.3%66.7%
D54QGD, Anti-neo-orthodox variation14346.2%55.2%
D55QGD, 6.Nf318135.9%55.5%
D55QGD, Neo-orthodox variation944.4%55.6%
D55QGD, Neo-orthodox variation, 7.Bh418247.3%56.0%
D55QGD, Neo-orthodox variation, 7.Bxf639947.1%51.4%
D55QGD, Petrosian variation39753.9%53.1%
D55QGD, Pillsbury attack250.0%75.0%
D56QGD, Lasker defence54449.3%52.6%
D56QGD, Lasker defence, Teichmann variation12552.8%49.6%
D57QGD, Lasker defence, Bernstein variation3857.9%55.3%
D57QGD, Lasker defence, main line16552.7%55.5%
D58QGD, Tartakower (Makagonov-Bondarevsky) system528246.5%52.1%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd524748.6%45.7%
D59QGD, Tartakower variation13349.6%47.4%
D60QGD, Orthodox defence11833.9%53.4%
D60QGD, Orthodox defence, Botvinnik variation10738.3%51.9%
D60QGD, Orthodox defence, Rauzer variation11448.2%55.7%
D61QGD, Orthodox defence, Rubinstein variation42045.2%53.3%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)25349.8%54.9%
D63QGD, Orthodox defence11946.2%60.1%
D63QGD, Orthodox defence, 7.Rc127940.9%55.9%
D63QGD, Orthodox defence, Capablanca variation540.0%60.0%
D63QGD, Orthodox defence, Pillsbury attack2751.9%59.3%
D63QGD, Orthodox defence, Swiss (Henneberger) variation13444.8%57.5%
D63QGD, Orthodox defence, Swiss, Karlsbad variation36244.8%54.4%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)11849.2%55.1%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation3633.3%61.1%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation2638.5%42.3%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
D65QGD, Orthodox defence, Rubinstein attack, main line2751.9%59.3%
D66QGD, Orthodox defence, Bd3 line33647.9%57.9%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation2642.3%63.5%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
D67QGD, Orthodox defence, Bd3 line, 11.O-O6735.8%65.7%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation6755.2%60.4%
D68QGD, Orthodox defence, classical variation8350.6%56.6%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)5156.9%57.8%
D69QGD, Orthodox defence, classical, 13.de1752.9%55.9%
D70Neo-Gruenfeld (Kemeri) defence24438.5%52.0%
D70Neo-Gruenfeld defence31336.4%55.0%
D71Neo-Gruenfeld, 5.cd37146.9%56.1%
D72Neo-Gruenfeld, 5.cd, main line28535.1%61.1%
D73Neo-Gruenfeld, 5.Nf399551.0%55.6%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O28546.3%56.5%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc322946.3%57.6%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc3432.4%66.2%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb660445.4%57.6%
D77Neo-Gruenfeld, 6.O-O83546.6%54.8%
D78Neo-Gruenfeld, 6.O-O c693543.7%53.6%
D79Neo-Gruenfeld, 6.O-O, main line61850.0%54.4%
D80Gruenfeld defence135945.4%53.4%
D80Gruenfeld, Lundin variation10.0%0.0%
D80Gruenfeld, Stockholm variation94143.7%53.8%
D81Gruenfeld, Russian variation72341.6%58.9%
D82Gruenfeld, 4.Bf469643.0%53.2%
D83Gruenfeld, Gruenfeld gambit9645.8%56.3%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation2661.5%61.5%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation47942.2%58.0%
D84Gruenfeld, Gruenfeld gambit accepted15143.7%57.6%
D85Gruenfeld, exchange variation375648.1%55.9%
D85Gruenfeld, modern exchange variation365447.0%56.3%
D86Gruenfeld, exchange, Larsen variation1136.4%54.5%
D86Gruenfeld, exchange, Simagin's improved variation17141.5%54.1%
D86Gruenfeld, exchange, Simagin's lesser variation6544.6%59.2%
D86Gruenfeld, exchange, classical variation124146.7%55.8%
D87Gruenfeld, exchange, Seville variation9254.3%62.0%
D87Gruenfeld, exchange, Spassky variation62442.8%56.2%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd27341.8%60.4%
D89Gruenfeld, Spassky variation, main line, 13.Bd37540.0%48.0%
D89Gruenfeld, exchange, Sokolsky variation1241.7%45.8%
D90Gruenfeld, Flohr variation40339.7%54.6%
D90Gruenfeld, Schlechter variation6832.4%52.9%
D90Gruenfeld, Three knights variation88848.3%53.9%
D91Gruenfeld, 5.Bg5104839.9%48.3%
D92Gruenfeld, 5.Bf488545.4%55.7%
D93Gruenfeld with Bf4 e338150.1%54.5%
D94Gruenfeld with e3 Bd32540.0%48.0%
D94Gruenfeld, 5.e349143.2%56.4%
D94Gruenfeld, Flohr defence2352.2%60.9%
D94Gruenfeld, Makogonov variation12740.2%50.8%
D94Gruenfeld, Opovcensky variation21942.9%51.6%
D94Gruenfeld, Smyslov defence18547.0%57.0%
D95Gruenfeld with e3 & Qb34637.0%59.8%
D95Gruenfeld, Botvinnik variation12240.2%51.2%
D96Gruenfeld, Russian variation44342.4%52.4%
D97Gruenfeld, Russian variation with e47030.0%62.1%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation194045.3%51.4%
D97Gruenfeld, Russian, Byrne (Simagin) variation16839.9%61.6%
D97Gruenfeld, Russian, Levenfish variation2536.0%58.0%
D97Gruenfeld, Russian, Prins variation49044.3%56.8%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation27144.6%57.7%
D98Gruenfeld, Russian, Keres variation2250.0%47.7%
D98Gruenfeld, Russian, Smyslov variation37241.4%59.1%
D99Gruenfeld defence, Smyslov, Yugoslav variation2623.1%50.0%
D99Gruenfeld defence, Smyslov, main line23340.8%59.0%
E00Catalan opening441341.8%54.9%
E00Neo-Indian (Seirawan) attack27830.9%50.4%
E00Queen's pawn game61238.2%56.5%
E01Catalan, closed77047.8%54.0%
E02Catalan, open, 5.Qa420943.5%58.6%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc416450.0%44.5%
E03Catalan, open, Alekhine variation4835.4%49.0%
E04Catalan, open, 5.Nf3543544.2%53.8%
E05Catalan, open, classical line18351.9%58.2%
E06Catalan, closed, 5.Nf3364449.4%54.0%
E07Catalan, closed, 6...Nbd713444.0%51.9%
E07Catalan, closed, Botvinnik variation12439.5%48.8%
E08Catalan, closed, 7.Qc213836.2%61.6%
E08Catalan, closed, Qc2 & b331840.3%50.6%
E08Catalan, closed, Spassky gambit1127.3%50.0%
E08Catalan, closed, Zagoryansky variation1060.0%50.0%
E09Catalan, closed, Sokolsky variation520.0%50.0%
E09Catalan, closed, main line31336.7%59.3%
E10Blumenfeld counter-gambit39440.4%56.2%
E10Blumenfeld counter-gambit accepted16139.1%56.2%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation25737.0%55.8%
E10Blumenfeld counter-gambit, Spielmann variation17235.5%58.4%
E10Doery defence3336.4%57.6%
E10Dzindzikhashvili defence19342.5%51.3%
E10Queen's pawn game546144.2%55.4%
E11Bogo-Indian defence216140.4%55.3%
E11Bogo-Indian defence, Gruenfeld variation270739.9%56.5%
E11Bogo-Indian defence, Monticelli trap2142.9%40.5%
E11Bogo-Indian defence, Nimzovich variation182639.9%57.6%
E12Queen's Indian defence78341.0%54.1%
E12Queen's Indian, 4.Nc3547140.3%53.3%
E12Queen's Indian, 4.Nc3, Botvinnik variation4425.0%48.9%
E12Queen's Indian, Miles variation179443.3%53.5%
E12Queen's Indian, Petrosian system798943.2%54.3%
E13Queen's Indian, 4.Nc3, main line29336.5%52.7%
E14Queen's Indian, 4.e3205439.6%53.1%
E14Queen's Indian, Averbakh variation425.0%37.5%
E15Queen's Indian, 4.g3326447.8%55.2%
E15Queen's Indian, 4.g3 Bb738241.9%53.4%
E15Queen's Indian, Buerger variation5937.3%61.0%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1677141.6%56.5%
E15Queen's Indian, Rubinstein variation18934.4%60.6%
E16Queen's Indian, Capablanca variation59343.2%57.2%
E16Queen's Indian, Riumin variation28637.8%58.7%
E16Queen's Indian, Yates variation49041.0%57.2%
E17Queen's Indian, 5.Bg2 Be75538.2%46.4%
E17Queen's Indian, Euwe variation8547.1%54.1%
E17Queen's Indian, Opovcensky variation85440.4%55.3%
E17Queen's Indian, anti-Queen's Indian system48541.4%53.1%
E17Queen's Indian, old main line, 6.O-O122243.3%58.1%
E18Queen's Indian, old main line, 7.Nc3194344.0%56.9%
E19Queen's Indian, old main line, 9.Qxc3149147.1%58.0%
E20Nimzo-Indian defence26046.2%52.7%
E20Nimzo-Indian, Kmoch variation118436.7%53.7%
E20Nimzo-Indian, Mikenas attack850.0%62.5%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system61844.2%54.4%
E21Nimzo-Indian, three knights variation334941.3%54.5%
E21Nimzo-Indian, three knights, Euwe variation862.5%56.3%
E21Nimzo-Indian, three knights, Korchnoi variation825.0%37.5%
E22Nimzo-Indian, Spielmann variation67937.7%53.3%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc611442.1%45.6%
E23Nimzo-Indian, Spielmann, Karlsbad variation4136.6%47.6%
E23Nimzo-Indian, Spielmann, San Remo variation2540.0%56.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
E24Nimzo-Indian, Saemisch variation45639.0%52.4%
E24Nimzo-Indian, Saemisch, Botvinnik variation10338.8%43.7%
E25Nimzo-Indian, Saemisch variation20140.8%55.2%
E25Nimzo-Indian, Saemisch, Keres variation33447.6%54.3%
E25Nimzo-Indian, Saemisch, Romanovsky variation13755.5%52.6%
E26Nimzo-Indian, Saemisch variation27036.7%56.1%
E26Nimzo-Indian, Saemisch, O'Kelly variation5639.3%50.0%
E27Nimzo-Indian, Saemisch variation11644.0%49.6%
E28Nimzo-Indian, Saemisch variation35331.4%52.5%
E29Nimzo-Indian, Saemisch, Capablanca variation3842.1%42.1%
E29Nimzo-Indian, Saemisch, main line16136.0%57.8%
E30Nimzo-Indian, Leningrad variation94433.6%50.3%
E30Nimzo-Indian, Leningrad, ...b5 gambit8234.1%47.6%
E31Nimzo-Indian, Leningrad, main line42034.0%49.6%
E32Nimzo-Indian, classical variation759842.6%53.9%
E32Nimzo-Indian, classical, Adorjan gambit12545.6%53.2%
E33Nimzo-Indian, classical, 4...Nc626534.3%56.8%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation44940.3%58.2%
E34Nimzo-Indian, classical, Noa variation98552.5%54.2%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed75748.9%50.1%
E36Nimzo-Indian, classical, Botvinnik variation1643.8%59.4%
E36Nimzo-Indian, classical, Noa variation, 5.a346243.3%54.1%
E36Nimzo-Indian, classical, Noa variation, main line10.0%0.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc255347.7%61.1%
E37Nimzo-Indian, classical, San Remo variation1127.3%59.1%
E38Nimzo-Indian, classical, 4...c576237.9%59.5%
E39Nimzo-Indian, classical, Pirc variation111939.9%55.2%
E40Nimzo-Indian, 4.e327233.1%56.6%
E40Nimzo-Indian, 4.e3, Taimanov variation22933.2%60.7%
E41Nimzo-Indian, 4.e3 c5100944.2%54.6%
E41Nimzo-Indian, e3, Huebner variation52333.8%51.3%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)82847.1%54.1%
E43Nimzo-Indian, Fischer variation74037.2%53.6%
E44Nimzo-Indian, Fischer variation, 5.Ne271639.4%55.6%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation49740.6%53.9%
E46Nimzo-Indian, 4.e3 O-O11436.8%52.6%
E46Nimzo-Indian, Reshevsky variation113443.7%51.8%
E46Nimzo-Indian, Simagin variation19342.5%47.2%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd385145.5%52.2%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d573143.5%51.4%
E49Nimzo-Indian, 4.e3, Botvinnik system29744.4%55.9%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d528642.0%50.0%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d535650.3%51.3%
E51Nimzo-Indian, 4.e3, Ragozin variation4835.4%67.7%
E52Nimzo-Indian, 4.e3, main line with ...b666540.0%51.1%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd78650.0%50.6%
E53Nimzo-Indian, 4.e3, Keres variation13339.1%49.6%
E53Nimzo-Indian, 4.e3, main line with ...c549243.1%54.9%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc133248.3%55.6%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation4156.1%64.6%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation203048.6%55.4%
E56Nimzo-Indian, 4.e3, main line with 7...Nc650252.4%55.3%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd1338.5%57.7%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3158844.8%52.8%
E59Nimzo-Indian, 4.e3, main line78943.7%53.5%
E60King's Indian defence131832.9%55.1%
E60King's Indian, 3.Nf3371039.7%57.5%
E60King's Indian, 3.g3235242.4%55.6%
E60King's Indian, 3.g3, counterthrust variation1729.4%32.4%
E60King's Indian, Anti-Gruenfeld10333.0%56.3%
E60King's Indian, Danube gambit1241.7%54.2%
E60Queen's pawn, Mengarini attack3935.9%61.5%
E61King's Indian defence, 3.Nc3150335.3%55.3%
E61King's Indian, Smyslov system12035.8%52.9%
E62King's Indian, fianchetto variation9538.9%54.2%
E62King's Indian, fianchetto with ...Nc628032.9%55.7%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation61733.2%60.2%
E62King's Indian, fianchetto, Larsen system33141.1%61.6%
E62King's Indian, fianchetto, Simagin variation9733.0%62.9%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation37233.9%57.8%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation38236.9%59.8%
E63King's Indian, fianchetto, Panno variation240637.9%56.9%
E64King's Indian, fianchetto, Yugoslav system13739.4%58.4%
E65King's Indian, fianchetto, Yugoslav, 7.O-O30646.1%53.4%
E66King's Indian, fianchetto, Yugoslav Panno38433.6%57.7%
E67King's Indian, fianchetto with ...Nd713140.5%56.9%
E67King's Indian, fianchetto, classical variation62141.5%54.9%
E68King's Indian, fianchetto, classical variation, 8.e4142939.6%59.8%
E69King's Indian, fianchetto, classical main line55433.8%62.4%
E70King's Indian, 4.e4129732.8%58.9%
E70King's Indian, Kramer system50230.9%56.7%
E70King's Indian, accelerated Averbakh system19336.3%53.4%
E71King's Indian, Makagonov system (5.h3)100534.5%60.0%
E72King's Indian with e4 & g314634.9%55.8%
E72King's Indian, Pomar system5635.7%55.4%
E73King's Indian, 5.Be24729.8%59.6%
E73King's Indian, Averbakh system126334.7%55.8%
E73King's Indian, Semi-Averbakh system11838.1%58.9%
E74King's Indian, Averbakh, 6...c549037.8%57.7%
E75King's Indian, Averbakh, main line23232.8%56.9%
E76King's Indian, Four pawns attack33735.9%58.6%
E76King's Indian, Four pawns attack, dynamic line29936.1%50.5%
E77King's Indian, Four pawns attack20331.5%59.1%
E77King's Indian, Four pawns attack, 6.Be24344.2%50.0%
E77King's Indian, Four pawns attack, Florentine gambit1838.9%41.7%
E78King's Indian, Four pawns attack, with Be2 and Nf310540.0%57.1%
E79King's Indian, Four pawns attack, main line5056.0%58.0%
E80King's Indian, Saemisch variation66933.5%59.2%
E81King's Indian, Saemisch, 5...O-O270235.0%55.0%
E81King's Indian, Saemisch, Byrne variation9638.5%57.8%
E82King's Indian, Saemisch, double fianchetto variation19137.2%58.9%
E83King's Indian, Saemisch, 6...Nc615932.1%51.9%
E83King's Indian, Saemisch, Panno formation42937.5%56.3%
E83King's Indian, Saemisch, Ruban variation1936.8%50.0%
E84King's Indian, Saemisch, Panno main line68937.3%54.2%
E85King's Indian, Saemisch, orthodox variation18237.9%53.6%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c660531.4%53.2%
E87King's Indian, Saemisch, orthodox, 7.d548726.7%56.5%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
E88King's Indian, Saemisch, orthodox, 7.d5 c646633.7%57.4%
E89King's Indian, Saemisch, orthodox main line8130.9%54.9%
E90King's Indian, 5.Nf3113832.5%56.9%
E90King's Indian, Larsen variation13234.1%59.5%
E90King's Indian, Zinnowitz variation7038.6%53.6%
E91King's Indian, 6.Be275034.3%64.5%
E91King's Indian, Kazakh variation35036.6%57.1%
E92King's Indian, Andersson variation33754.9%49.4%
E92King's Indian, Gligoric-Taimanov system162434.8%58.5%
E92King's Indian, Petrosian system13727.7%52.6%
E92King's Indian, Petrosian system, Stein variation69633.3%53.9%
E92King's Indian, classical variation3729.7%47.3%
E93King's Indian, Petrosian system, main line11833.1%50.4%
E94King's Indian, orthodox variation112437.9%54.5%
E94King's Indian, orthodox, 7...Nbd799334.2%59.7%
E94King's Indian, orthodox, Donner variation27236.8%59.9%
E95King's Indian, orthodox, 7...Nbd7, 8.Re151338.8%55.8%
E96King's Indian, orthodox, 7...Nbd7, main line10138.6%58.9%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)434533.4%55.9%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack137435.7%58.3%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne195426.6%61.2%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack15321.6%61.8%
E99King's Indian, orthodox, Aronin-Taimanov, main line6830.9%62.5%

Created in 2005-2013 by CCRL team
Last games added on January 18, 2020