CCRL 40/40
Downloads and Statistics
August 17, 2019
Testing summary:
Total: 1'075'629 games
played by 2'520 programs
147029 CPU days (X2 4600+)

White wins: 373'444 (34.7%)
Black wins: 277'846 (25.8%)
Draws: 424'339 (39.5%)
White score: 54.4%

Opening statistics

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

ECOOpeningNumber
of
games
DrawsWhite
score
Commented
PGN
A00Amar (Paris) opening1844.4%33.3%
A00Amar gambit10.0%0.0%
A00Amsterdam attack30.0%100.0%
A00Anderssen's opening49341.2%50.0%
A00Anti-Borg (Desprez) opening50.0%40.0%
A00Battambang opening2040.0%50.0%
A00Benko's opening915639.6%51.9%
A00Benko's opening, reversed Alekhine12741.7%46.1%
A00Clemenz (Mead's, Basman's or de Klerk's) opening8239.0%50.0%
A00Dunst (Sleipner, Heinrichsen) opening242535.8%49.9%
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 opening32031.6%49.5%
A00Novosibirsk opening2634.6%51.9%
A00Polish (Sokolsky) opening244339.0%48.1%
A00Polish, Outflank variation18941.3%47.1%
A00Saragossa opening44928.7%50.4%
A00Van't Kruijs opening59439.4%51.2%
A00Ware (Meadow Hay) opening2222.7%38.6%
A01Nimzovich-Larsen attack94735.9%52.1%
A01Nimzovich-Larsen attack, Dutch variation4323.3%58.1%
A01Nimzovich-Larsen attack, English variation47932.6%48.9%
A01Nimzovich-Larsen attack, Indian variation59336.4%48.9%
A01Nimzovich-Larsen attack, Polish variation616.7%58.3%
A01Nimzovich-Larsen attack, classical variation199033.1%49.4%
A01Nimzovich-Larsen attack, modern variation417538.2%50.6%
A01Nimzovich-Larsen attack, symmetrical variation84039.8%49.9%
A02Bird's opening385535.6%49.1%
A02Bird's opening, Swiss gambit250.0%75.0%
A02Bird, From gambit27333.3%53.3%
A02Bird, From gambit, Lasker variation3053.3%60.0%
A02Bird, From gambit, Lipke variation10.0%0.0%
A02Bird, Hobbs gambit560.0%70.0%
A03Bird's opening358734.4%47.8%
A03Bird's opening, Lasker variation12429.0%46.0%
A03Bird's opening, Williams gambit4932.7%55.1%
A03Mujannah opening450.0%25.0%
A04Reti opening1086636.6%54.6%
A04Reti v Dutch167331.4%57.3%
A04Reti, Herrstroem gambit20.0%100.0%
A04Reti, Lisitsin gambit deferred3826.3%71.1%
A04Reti, Pirc-Lisitsin gambit14828.4%48.0%
A04Reti, Wade defence20.0%50.0%
A05Reti opening528735.7%53.0%
A05Reti, King's Indian attack161739.6%52.8%
A05Reti, King's Indian attack, Reti-Smyslov variation14431.3%49.0%
A05Reti, King's Indian attack, Spassky's variation62140.3%52.0%
A06Reti opening94736.4%52.4%
A06Reti, Nimzovich-Larsen attack424738.7%49.6%
A06Reti, old Indian attack18230.2%47.5%
A06Santasiere's folly18237.9%45.9%
A06Tennison (Lemberg, Zukertort) gambit4240.5%51.2%
A07Reti, King's Indian attack275840.9%52.9%
A07Reti, King's Indian attack (Barcza system)671139.6%53.6%
A07Reti, King's Indian attack (with ...c5)26235.1%50.0%
A07Reti, King's Indian attack, Keres variation95835.4%54.6%
A07Reti, King's Indian attack, Pachman system16538.2%51.8%
A07Reti, King's Indian attack, Yugoslav variation192439.9%53.1%
A08Reti, King's Indian attack72640.8%52.8%
A08Reti, King's Indian attack, French variation30137.5%49.7%
A09Reti accepted47437.1%52.3%
A09Reti accepted, Keres variation6224.2%63.7%
A09Reti opening90237.3%54.2%
A09Reti, advance variation143535.5%48.6%
A10English opening409535.7%55.0%
A10English, Adorjan defence70838.1%52.5%
A10English, Anglo-Dutch defense109431.4%51.0%
A10English, Jaenisch gambit20.0%100.0%
A11English, Caro-Kann defensive system194738.8%53.1%
A12English, Bled variation2937.9%50.0%
A12English, Capablanca's variation10434.6%47.1%
A12English, Caro-Kann defensive system29033.8%51.4%
A12English, Caro-Kann defensive system, Bogolyubov variation15444.2%53.9%
A12English, London defensive system14943.0%51.7%
A12English, New York (London) defensive system6543.1%44.6%
A12English, Torre defensive system8243.9%54.9%
A13English opening284635.1%52.7%
A13English opening, Agincourt variation181038.1%54.9%
A13English, Kurajica defence16233.3%60.5%
A13English, Neo-Catalan99340.0%52.3%
A13English, Neo-Catalan accepted142346.2%55.9%
A13English, Romanishin gambit38940.6%57.1%
A13English, Wimpey system19144.0%48.7%
A14English, Neo-Catalan declined101543.1%54.7%
A14English, Symmetrical, Keres defence56347.8%57.1%
A15English opening1409742.6%53.6%
A15English, 1...Nf6 (Anglo-Indian defense)165737.8%54.7%
A16English opening174034.0%54.1%
A16English, Anglo-Gruenfeld defense36441.5%54.5%
A16English, Anglo-Gruenfeld defense, Korchnoi variation9638.5%55.7%
A16English, Anglo-Gruenfeld, Czech defense24835.1%59.5%
A16English, Anglo-Gruenfeld, Smyslov defense16933.1%57.4%
A17English opening29237.7%52.7%
A17English, Nimzo-English opening236538.1%53.6%
A17English, Queens Indian formation31235.9%60.3%
A17English, Queens Indian, Romanishin variation9931.3%55.1%
A18English, Mikenas-Carls variation30338.0%57.6%
A18English, Mikenas-Carls, Flohr variation44439.4%58.9%
A18English, Mikenas-Carls, Kevitz variation3234.4%48.4%
A19English, Mikenas-Carls, Sicilian variation64538.0%53.9%
A20English opening799837.2%53.7%
A20English, Nimzovich variation14630.1%55.5%
A20English, Nimzovich, Flohr variation20437.7%47.3%
A21English opening208531.1%55.7%
A21English, Keres variation1421.4%46.4%
A21English, Kramnik-Shirov counterattack297837.4%51.9%
A21English, Smyslov defence6224.2%62.1%
A21English, Troeger defence16925.4%55.9%
A22English opening100035.4%50.7%
A22English, Bellon gambit4727.7%58.5%
A22English, Bremen, Smyslov system192538.2%48.8%
A22English, Bremen, reverse dragon75740.2%51.4%
A22English, Carls' Bremen system58137.7%53.8%
A23English, Bremen system, Keres variation79338.6%49.2%
A24English, Bremen system with ...g622638.1%48.2%
A25English, Sicilian reversed113432.3%53.8%
A25English, closed system85434.1%54.0%
A25English, closed system (without ...d6)13629.4%55.1%
A25English, closed, 5.Rb155338.9%52.4%
A25English, closed, 5.Rb1 Taimanov variation825.0%50.0%
A25English, closed, Hort variation3834.2%53.9%
A25English, closed, Taimanov variation3218.8%62.5%
A26English, Botvinnik system37037.0%53.4%
A26English, closed system39837.4%50.9%
A27English, three knights system130431.0%52.2%
A28English, Bradley Beach variation6822.1%39.0%
A28English, Nenarokov variation12639.7%50.8%
A28English, four knights system43842.0%53.0%
A28English, four knights, 4.e3128037.1%52.6%
A28English, four knights, Capablanca variation61036.6%54.0%
A28English, four knights, Marini variation108039.1%50.4%
A28English, four knights, Nimzovich variation74433.6%55.4%
A28English, four knights, Romanishin variation51550.3%52.3%
A28English, four knights, Stean variation8741.4%59.8%
A29English, four knights, kingside fianchetto693941.1%52.1%
A30English, symmetrical variation417938.4%54.1%
A30English, symmetrical, hedgehog system289446.8%55.8%
A30English, symmetrical, hedgehog, flexible formation18343.2%54.4%
A31English, symmetrical, Benoni formation134738.3%55.8%
A32English, symmetrical variation64541.2%54.4%
A33English, symmetrical variation190647.0%53.9%
A33English, symmetrical, Geller variation72440.1%54.1%
A34English, symmetrical variation146739.5%54.0%
A34English, symmetrical, Rubinstein system44538.4%53.6%
A34English, symmetrical, three knights system156543.5%54.9%
A35English, symmetrical variation38034.7%50.0%
A35English, symmetrical, four knights system252343.6%53.4%
A36English, symmetrical variation13333.8%50.8%
A36English, symmetrical, Botvinnik system18634.9%49.7%
A36English, symmetrical, Botvinnik system reversed10338.8%54.4%
A36English, ultra-symmetrical variation178637.3%52.5%
A37English, symmetrical variation123240.5%50.9%
A37English, symmetrical, Botvinnik system reversed89238.6%52.0%
A38English, symmetrical variation63343.9%54.8%
A38English, symmetrical, main line with b31100.0%50.0%
A38English, symmetrical, main line with d318742.8%54.0%
A39English, symmetrical, main line with d459541.0%56.0%
A40Beefeater defence5030.0%63.0%
A40Modern defence167935.3%57.0%
A40Polish defence11832.2%56.8%
A40Queen's pawn352933.5%55.0%
A40Queen's pawn, Charlick (Englund) gambit3243.8%59.4%
A40Queen's pawn, English defence45244.2%57.5%
A40Queen's pawn, Franco-Indian (Keres) defence184035.3%56.3%
A40Queen's pawn, Keres defence257142.0%56.0%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence31526.0%56.5%
A41Modern defence14629.5%56.5%
A41Old Indian defence137332.2%54.1%
A41Old Indian, Tartakower (Wade) variation165932.4%58.9%
A41Queen's Pawn277334.5%55.5%
A41Robatsch defence, Rossolimo variation20132.8%51.2%
A42Modern defence, Averbakh system69032.2%58.3%
A42Modern defence, Averbakh system, Kotov variation16126.1%61.5%
A42Modern defence, Averbakh system, Randspringer variation1513.3%66.7%
A42Pterodactyl defence34036.8%63.4%
A43Hawk (Habichd) defence366.7%33.3%
A43Old Benoni defence239532.7%56.8%
A43Old Benoni, Franco-Benoni defence17635.8%61.6%
A43Old Benoni, Mujannah formation8433.3%61.9%
A43Old Benoni, Schmid's system3528.6%57.1%
A43Woozle defence80.0%75.0%
A44Old Benoni defence6227.4%60.5%
A44Semi-Benoni (`blockade variation')40429.0%59.8%
A45Blackmar-Diemer gambit24127.0%52.1%
A45Canard opening1729.4%38.2%
A45Paleface attack4431.8%50.0%
A45Queen's pawn game373935.8%53.6%
A45Queen's pawn, Bronstein gambit1233.3%50.0%
A45Trompovsky attack (Ruth, Opovcensky opening)638533.6%53.3%
A46Queen's pawn game487437.6%54.4%
A46Queen's pawn, Torre attack195935.3%52.1%
A46Queen's pawn, Torre attack, Wagner gambit2330.4%50.0%
A46Queen's pawn, Yusupov-Rubinstein system105239.3%52.4%
A47Queen's Indian defence72336.1%51.4%
A47Queen's Indian, Marienbad system10738.3%53.7%
A47Queen's Indian, Marienbad system, Berg variation2152.4%54.8%
A48King's Indian, East Indian defence124637.9%52.2%
A48King's Indian, London system154137.1%53.4%
A48King's Indian, Torre attack212938.8%49.8%
A49King's Indian, fianchetto without c4155539.9%55.9%
A50Kevitz-Trajkovich defence62632.6%55.8%
A50Queen's Indian accelerated36540.5%57.3%
A50Queen's pawn game105835.7%56.0%
A51Budapest defence declined2548.0%64.0%
A51Budapest, Fajarowicz variation34437.5%57.1%
A51Budapest, Fajarowicz, Steiner variation4835.4%46.9%
A52Budapest defence6336.5%51.6%
A52Budapest, Adler variation40045.8%58.1%
A52Budapest, Alekhine variation2429.2%60.4%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
A52Budapest, Alekhine, Abonyi variation6927.5%60.1%
A52Budapest, Rubinstein variation44441.4%60.8%
A53Old Indian defence141836.8%58.5%
A53Old Indian, Janowski variation20034.5%54.8%
A54Old Indian, Dus-Khotimirsky variation2227.3%40.9%
A54Old Indian, Ukrainian variation18039.4%51.9%
A54Old Indian, Ukrainian variation, 4.Nf341434.3%55.6%
A55Old Indian, main line55136.1%58.7%
A56Benoni defence94432.7%60.2%
A56Benoni defence, Hromodka system56625.6%63.3%
A56Czech Benoni defence37726.5%66.8%
A56Czech Benoni, King's Indian system6118.0%61.5%
A56Vulture defence1100.0%50.0%
A57Benko gambit110134.2%55.6%
A57Benko gambit half accepted104737.8%57.7%
A57Benko gambit, Zaitsev system12634.1%49.6%
A58Benko gambit accepted87434.4%58.6%
A58Benko gambit, Nd2 variation1241.7%62.5%
A58Benko gambit, fianchetto variation16445.7%61.3%
A59Benko gambit4744.7%60.6%
A59Benko gambit, 7.e43844.7%51.3%
A59Benko gambit, Ne2 variation1735.3%47.1%
A59Benko gambit, main line15141.1%68.2%
A60Benoni defence26526.0%56.0%
A61Benoni defence59833.3%61.8%
A61Benoni, Nimzovich (knight's tour) variation51628.3%58.5%
A61Benoni, Uhlmann variation21621.8%40.0%
A61Benoni, fianchetto variation6331.7%61.9%
A62Benoni, fianchetto variation130134.6%56.0%
A63Benoni, fianchetto, 9...Nbd716137.9%64.3%
A64Benoni, fianchetto, 11...Re823839.9%48.9%
A65Benoni, 6.e447831.0%56.9%
A66Benoni, Mikenas variation2917.2%53.4%
A66Benoni, pawn storm variation540.0%60.0%
A67Benoni, Taimanov variation30927.8%62.5%
A68Benoni, four pawns attack10532.4%60.0%
A69Benoni, four pawns attack, main line12039.2%52.1%
A70Benoni, classical with e4 and Nf367039.6%58.9%
A70Benoni, classical without 9.O-O1612.5%50.0%
A71Benoni, classical, 8.Bg514832.4%54.7%
A72Benoni, classical without 9.O-O8145.7%62.3%
A73Benoni, classical, 9.O-O12232.0%57.8%
A74Benoni, classical, 9...a6, 10.a43834.2%64.5%
A75Benoni, classical with ...a6 and 10...Bg413531.9%62.6%
A76Benoni, classical, 9...Re818941.3%62.4%
A77Benoni, classical, 9...Re8, 10.Nd221234.0%63.7%
A78Benoni, classical with ...Re8 and ...Na612532.0%60.8%
A79Benoni, classical, 11.f310330.1%62.6%
A80Dutch328233.8%54.4%
A80Dutch, 2.Bg5 variation160131.0%54.3%
A80Dutch, Korchnoi attack6826.5%48.5%
A80Dutch, Krejcik gambit32132.4%53.6%
A80Dutch, Manhattan (Alapin, Ulvestad) variation4922.4%52.0%
A80Dutch, Spielmann gambit20.0%50.0%
A81Dutch defence424137.6%56.4%
A81Dutch defence, Blackburne variation7630.3%53.3%
A81Dutch, Leningrad, Basman system862.5%68.8%
A81Dutch, Leningrad, Karlsbad variation1250.0%50.0%
A82Dutch, Balogh defence2441.7%62.5%
A82Dutch, Staunton gambit20733.3%43.7%
A82Dutch, Staunton gambit, Tartakower variation1827.8%58.3%
A83Dutch, Staunton gambit, Alekhine variation450.0%50.0%
A83Dutch, Staunton gambit, Chigorin variation10129.7%53.5%
A83Dutch, Staunton gambit, Lasker variation2934.5%55.2%
A83Dutch, Staunton gambit, Nimzovich variation450.0%25.0%
A83Dutch, Staunton gambit, Staunton's line24139.0%49.8%
A84Dutch defence82236.3%56.6%
A84Dutch defence, Rubinstein variation46131.5%57.6%
A84Dutch, Staunton gambit deferred1145.5%31.8%
A85Dutch with c4 & Nc392532.6%54.6%
A86Dutch with c4 & g316835.7%61.3%
A86Dutch, Hort-Antoshin system1040.0%60.0%
A86Dutch, Leningrad variation27535.6%58.5%
A87Dutch, Leningrad, main variation50839.4%54.7%
A88Dutch, Leningrad, main variation with c6105939.7%58.7%
A89Dutch, Leningrad, main variation with Nc652334.2%62.2%
A90Dutch defence125137.9%60.4%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation29335.8%60.2%
A90Dutch-Indian, Alekhine variation8530.6%56.5%
A91Dutch defence20533.7%52.0%
A92Dutch defence12639.7%61.9%
A92Dutch defence, Alekhine variation5341.5%60.4%
A92Dutch, stonewall variation13341.4%60.5%
A92Dutch, stonewall with Nc33342.4%48.5%
A93Dutch, stonewall, Botwinnik variation25639.1%59.8%
A94Dutch, stonewall with Ba310940.4%58.7%
A95Dutch, stonewall with Nc329032.1%58.4%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
A96Dutch, classical variation47134.4%58.4%
A97Dutch, Ilyin-Genevsky variation14337.1%53.5%
A97Dutch, Ilyin-Genevsky, Winter variation16035.6%63.4%
A98Dutch, Ilyin-Genevsky variation with Qc217226.2%57.8%
A99Dutch, Ilyin-Genevsky variation with b333937.2%61.1%
B00Barnes defence425.0%87.5%
B00Carr's defence450.0%50.0%
B00Corn stalk defence450.0%50.0%
B00Fred80.0%75.0%
B00KP, Colorado counter1030.0%75.0%
B00KP, Nimzovich defence99331.6%58.4%
B00KP, Nimzovich defence, Bogolyubov variation14829.7%60.1%
B00KP, Nimzovich defence, Marshall gambit616.7%25.0%
B00King's pawn opening248833.6%56.6%
B00Lemming defence1233.3%58.3%
B00Owen defence46132.1%59.9%
B00Reversed Grob (Borg/Basman defence/macho Grob)4219.0%69.0%
B00St. George (Baker) defence4632.6%59.8%
B01Scandinavian (centre counter) defence336539.0%57.3%
B01Scandinavian defence141538.4%58.6%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B01Scandinavian defence, Lasker variation11833.1%64.0%
B01Scandinavian gambit19342.0%55.2%
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 variation68043.8%59.0%
B01Scandinavian, Mieses-Kotrvc gambit1353.8%50.0%
B01Scandinavian, Pytel-Wade variation319143.3%58.0%
B01Scandinavian, Richter variation1216.7%66.7%
B02Alekhine's defence75733.8%54.4%
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 variation15334.0%58.2%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation250.0%25.0%
B02Alekhine's defence, Saemisch attack43234.3%48.8%
B02Alekhine's defence, Scandinavian variation48236.5%55.4%
B02Alekhine's defence, Spielmann variation2222.7%47.7%
B02Alekhine's defence, Steiner variation1936.8%50.0%
B02Alekhine's defence, Two pawns' (Lasker's) attack38639.6%52.7%
B02Alekhine's defence, Two pawns' attack, Mikenas variation20.0%0.0%
B02Alekhine's defence, Welling variation1020.0%50.0%
B03Alekhine's defence16534.5%60.3%
B03Alekhine's defence, Balogh variation4634.8%56.5%
B03Alekhine's defence, exchange variation78939.3%58.8%
B03Alekhine's defence, exchange, Karpov variation1163.6%50.0%
B03Alekhine's defence, four pawns attack26831.0%65.5%
B03Alekhine's defence, four pawns attack, 6...Nc62035.0%42.5%
B03Alekhine's defence, four pawns attack, 7.Be314736.1%69.0%
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 variation13231.8%60.6%
B04Alekhine's defence, modern variation30535.4%61.0%
B04Alekhine's defence, modern, Keres variation6532.3%70.0%
B04Alekhine's defence, modern, Larsen variation99942.1%59.4%
B04Alekhine's defence, modern, Schmid variation16639.8%59.6%
B04Alekhine's defence, modern, fianchetto variation84437.3%57.2%
B05Alekhine's defence, modern variation, 4...Bg474832.0%64.6%
B05Alekhine's defence, modern, Alekhine variation837.5%43.8%
B05Alekhine's defence, modern, Flohr variation18738.5%59.9%
B05Alekhine's defence, modern, Panov variation2740.7%50.0%
B05Alekhine's defence, modern, Vitolins attack3641.7%54.2%
B06Norwegian defence666.7%50.0%
B06Robatsch (modern) defence838035.1%56.0%
B06Robatsch defence102334.3%58.6%
B06Robatsch defence, Gurgenidze variation8532.9%62.4%
B06Robatsch defence, Pseudo-Austrian attack61134.7%53.8%
B06Robatsch defence, Two knights variation39032.3%60.3%
B06Robatsch defence, Two knights, Suttles variation110237.7%57.8%
B06Robatsch defence, three pawns attack20127.4%60.0%
B07Pirc defence237135.9%55.9%
B07Pirc, 150 attack29638.2%62.3%
B07Pirc, Byrne variation52432.6%57.2%
B07Pirc, Chinese variation650.0%41.7%
B07Pirc, Holmov system7240.3%53.5%
B07Pirc, Sveshnikov system37235.5%53.5%
B07Pirc, Ufimtsev-Pytel variation64133.4%57.7%
B07Pirc, bayonet (Mariotti) attack4346.5%58.1%
B07Robatsch defence, Geller's system71436.6%57.2%
B08Pirc, classical (two knights) system83137.1%58.1%
B08Pirc, classical system, 5.Be2277938.0%58.1%
B08Pirc, classical, h3 system50537.4%59.1%
B09Pirc, Austrian attack21839.0%61.2%
B09Pirc, Austrian attack, 6.Bd3137240.0%59.9%
B09Pirc, Austrian attack, 6.Be338831.7%57.1%
B09Pirc, Austrian attack, 6.e512140.5%55.8%
B09Pirc, Austrian attack, Ljubojevic variation3030.0%48.3%
B09Pirc, Austrian attack, dragon formation84939.1%57.8%
B10Caro-Kann defence286434.0%52.5%
B10Caro-Kann, Goldman (Spielmann) variation14436.1%51.4%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B10Caro-Kann, Two knights variation68134.5%57.5%
B10Caro-Kann, anti-Caro-Kann defence77131.8%60.0%
B10Caro-Kann, anti-anti-Caro-Kann defence156147.5%52.2%
B10Caro-Kann, closed (Breyer) variation129837.1%52.7%
B11Caro-Kann, Two knights, 3...Bg4126139.0%54.9%
B12Caro-Kann defence37731.6%57.4%
B12Caro-Kann, 3.Nd224035.0%60.0%
B12Caro-Kann, Edinburgh variation7541.3%56.7%
B12Caro-Kann, Tartakower (fantasy) variation94036.6%55.4%
B12Caro-Kann, advance variation1259137.9%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 attack122446.8%53.1%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation4835.4%46.9%
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 variation12948.1%56.6%
B13Caro-Kann, exchange variation118838.5%52.0%
B13Caro-Kann, exchange, Rubinstein variation17337.0%53.8%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6208846.9%55.5%
B14Caro-Kann, Panov-Botvinnik attack, 5...g638051.1%52.6%
B15Caro-Kann defence31930.7%54.2%
B15Caro-Kann, Alekhine gambit3234.4%48.4%
B15Caro-Kann, Forgacs variation26541.9%56.0%
B15Caro-Kann, Gurgenidze counter-attack850.0%62.5%
B15Caro-Kann, Gurgenidze system44436.5%57.2%
B15Caro-Kann, Rasa-Studier gambit1618.8%28.1%
B15Caro-Kann, Tartakower (Nimzovich) variation42740.5%56.1%
B16Caro-Kann, Bronstein-Larsen variation58031.9%60.9%
B17Caro-Kann, Steinitz variation415543.2%53.2%
B18Caro-Kann, classical variation184344.7%54.9%
B18Caro-Kann, classical, 6.h466842.4%55.2%
B18Caro-Kann, classical, Flohr variation12251.6%52.0%
B18Caro-Kann, classical, Maroczy attack1216.7%41.7%
B19Caro-Kann, classical, 7...Nd740250.0%52.4%
B19Caro-Kann, classical, Spassky variation278040.1%56.4%
B20Sicilian defence337833.3%50.3%
B20Sicilian, Gloria variation1421.4%46.4%
B20Sicilian, Keres variation (2.Ne2)96636.6%52.5%
B20Sicilian, Steinitz variation59437.4%50.8%
B20Sicilian, wing gambit9436.2%45.7%
B20Sicilian, wing gambit, Carlsbad variation3246.9%51.6%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
B20Sicilian, wing gambit, Marshall variation9129.7%54.4%
B21Sicilian, Andreaschek gambit1947.4%55.3%
B21Sicilian, Grand Prix attack191333.7%52.1%
B21Sicilian, Smith-Morra gambit101039.9%48.0%
B22Sicilian, 2.c3, Heidenfeld variation6225.8%45.2%
B22Sicilian, Alapin's variation (2.c3)768342.5%54.5%
B23Sicilian, Grand Prix attack94336.7%49.6%
B23Sicilian, Grand Prix attack, Schofman variation16041.9%52.2%
B23Sicilian, chameleon variation85834.4%57.3%
B23Sicilian, closed450635.9%51.8%
B23Sicilian, closed, 2...Nc6239338.4%52.6%
B23Sicilian, closed, Korchnoi variation23247.0%50.6%
B24Sicilian, closed57834.9%50.5%
B24Sicilian, closed, Smyslov variation2528.0%58.0%
B25Sicilian, closed36835.6%50.1%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)6934.8%52.2%
B25Sicilian, closed, 6.f449638.5%50.3%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)3743.2%59.5%
B26Sicilian, closed, 6.Be375432.8%50.2%
B27Sicilian defence5137.3%61.8%
B27Sicilian, Acton extension425.0%87.5%
B27Sicilian, Hungarian variation382739.6%57.7%
B27Sicilian, Katalimov variation19840.4%58.6%
B27Sicilian, Quinteros variation7037.1%64.3%
B27Sicilian, Stiletto (Althouse) variation250.0%25.0%
B28Sicilian, O'Kelly variation89135.2%57.6%
B29Sicilian, Nimzovich-Rubinstein variation116039.7%58.1%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit5052.0%54.0%
B30Sicilian defence353339.6%54.3%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)584337.5%56.5%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)371140.2%56.1%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation4148.8%51.2%
B32Sicilian defence106438.9%55.7%
B32Sicilian, Flohr variation30035.0%59.5%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation144040.1%56.4%
B32Sicilian, Labourdonnais-Loewenthal variation29239.0%59.2%
B32Sicilian, Nimzovich variation3339.4%53.0%
B33Sicilian defence53538.3%54.3%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation117035.4%55.0%
B33Sicilian, Pelikan, Bird variation24237.6%63.4%
B33Sicilian, Pelikan, Chelyabinsk variation225836.4%57.2%
B33Sicilian, Sveshnikov variation150038.9%51.0%
B34Sicilian, accelerated fianchetto, exchange variation3638.9%50.0%
B34Sicilian, accelerated fianchetto, modern variation50638.1%52.9%
B35Sicilian, accelerated fianchetto, modern variation with Bc4222143.2%53.5%
B36Sicilian, accelerated fianchetto, Gurgenidze variation32148.3%60.3%
B36Sicilian, accelerated fianchetto, Maroczy bind107645.1%57.9%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg721343.2%55.9%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3115543.1%57.3%
B39Sicilian, accelerated fianchetto, Breyer variation68641.7%58.2%
B40Sicilian defence723437.5%54.1%
B40Sicilian, Anderssen variation92340.4%56.9%
B40Sicilian, Marshall variation425.0%87.5%
B40Sicilian, Pin variation (Sicilian counter-attack)3429.4%64.7%
B40Sicilian, Pin, Jaffe variation40.0%100.0%
B40Sicilian, Pin, Koch variation5825.9%80.2%
B41Sicilian, Kan variation25242.9%55.6%
B41Sicilian, Kan, Maroczy bind (Reti variation)59635.7%59.1%
B41Sicilian, Kan, Maroczy bind - Bronstein variation2532.0%32.0%
B42Sicilian, Kan, 5.Bd3227538.5%57.9%
B42Sicilian, Kan, Gipslis variation8239.0%63.4%
B42Sicilian, Kan, Polugaievsky variation167937.8%54.4%
B42Sicilian, Kan, Swiss cheese variation31234.3%61.1%
B43Sicilian, Kan, 5.Nc3361239.1%56.3%
B44Sicilian defence38642.5%52.3%
B44Sicilian, Szen (`anti-Taimanov') variation94541.1%53.2%
B44Sicilian, Szen variation, Dely-Kasparov gambit2755.6%61.1%
B44Sicilian, Szen, hedgehog variation23740.5%50.6%
B45Sicilian, Taimanov variation222538.0%56.5%
B45Sicilian, Taimanov, American attack1942.1%42.1%
B46Sicilian, Taimanov variation350038.2%55.6%
B47Sicilian, Taimanov (Bastrikov) variation424641.8%54.3%
B48Sicilian, Taimanov variation373937.1%56.2%
B49Sicilian, Taimanov variation73145.3%57.3%
B50Sicilian578838.8%52.8%
B50Sicilian, wing gambit deferred3333.3%43.9%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack228137.5%54.9%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7222040.8%50.9%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit20640.8%57.8%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation99944.0%55.0%
B53Sicilian, Chekhover variation180440.5%52.2%
B53Sicilian, Chekhover, Zaitsev variation10033.0%58.5%
B54Sicilian117435.9%54.8%
B54Sicilian, Prins (Moscow) variation68438.2%56.4%
B55Sicilian, Prins variation, Venice attack9139.6%51.6%
B56Sicilian198638.9%53.3%
B56Sicilian, Venice attack7935.4%60.8%
B57Sicilian, Magnus Smith trap1145.5%40.9%
B57Sicilian, Sozin, Benko variation136939.2%51.8%
B57Sicilian, Sozin, not Scheveningen28940.8%55.4%
B58Sicilian, Boleslavsky variation46436.6%48.3%
B58Sicilian, Boleslavsky, Louma variation5236.5%56.7%
B58Sicilian, classical24643.1%48.8%
B59Sicilian, Boleslavsky variation, 7.Nb317944.1%52.2%
B60Sicilian, Richter-Rauzer84835.6%59.0%
B60Sicilian, Richter-Rauzer, Bondarevsky variation3951.3%64.1%
B60Sicilian, Richter-Rauzer, Larsen variation17230.8%59.6%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd261136.8%61.1%
B62Sicilian, Richter-Rauzer, 6...e65242.3%59.6%
B62Sicilian, Richter-Rauzer, Keres variation10830.6%48.6%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation8640.7%50.6%
B62Sicilian, Richter-Rauzer, Podvebrady variation2250.0%34.1%
B62Sicilian, Richter-Rauzer, Richter attack30.0%66.7%
B63Sicilian, Richter-Rauzer, Rauzer attack16137.3%57.8%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7120837.7%56.3%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f434838.5%57.5%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd462441.3%55.8%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6585133.7%51.6%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7302933.9%55.5%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be715132.5%56.6%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf613528.1%58.5%
B70Sicilian, dragon variation87342.0%52.2%
B71Sicilian, dragon, Levenfish variation37137.2%53.1%
B71Sicilian, dragon, Levenfish; Flohr variation3842.1%55.3%
B72Sicilian, dragon, 6.Be320532.2%51.2%
B72Sicilian, dragon, classical attack11738.5%53.4%
B72Sicilian, dragon, classical, Amsterdam variation5226.9%48.1%
B72Sicilian, dragon, classical, Grigoriev variation4544.4%48.9%
B72Sicilian, dragon, classical, Nottingham variation4843.8%55.2%
B73Sicilian, dragon, classical, 8.O-O41045.4%52.4%
B73Sicilian, dragon, classical, Richter variation15348.4%58.2%
B73Sicilian, dragon, classical, Zollner gambit944.4%44.4%
B74Sicilian, dragon, classical, 9.Nb347749.9%49.3%
B74Sicilian, dragon, classical, Alekhine variation2951.7%63.8%
B74Sicilian, dragon, classical, Reti-Tartakower variation9745.4%54.6%
B74Sicilian, dragon, classical, Spielmann variation1030.0%55.0%
B75Sicilian, dragon, Yugoslav attack44232.6%55.7%
B76Sicilian, dragon, Yugoslav attack, 7...O-O35735.9%53.2%
B76Sicilian, dragon, Yugoslav attack, Rauser variation100933.9%63.6%
B77Sicilian, dragon, Yugoslav attack, 9...Bd726438.6%56.8%
B77Sicilian, dragon, Yugoslav attack, 9.Bc413135.1%53.4%
B77Sicilian, dragon, Yugoslav attack, Byrne variation1844.4%66.7%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O49928.3%56.2%
B79Sicilian, dragon, Yugoslav attack, 12.h41625.0%62.5%
B80Sicilian, Scheveningen variation136131.8%54.1%
B80Sicilian, Scheveningen, English variation17332.9%54.0%
B80Sicilian, Scheveningen, Vitolins variation5644.6%50.9%
B80Sicilian, Scheveningen, fianchetto variation22432.1%51.8%
B81Sicilian, Scheveningen, Keres attack240334.7%60.0%
B82Sicilian, Scheveningen, 6.f458935.8%56.5%
B82Sicilian, Scheveningen, Tal variation12835.9%62.5%
B83Sicilian, Scheveningen, 6.Be257940.6%53.1%
B83Sicilian, modern Scheveningen48942.3%49.8%
B83Sicilian, modern Scheveningen, main line55044.5%53.2%
B83Sicilian, modern Scheveningen, main line with Nb39936.4%54.5%
B84Sicilian, Scheveningen (Paulsen), classical variation389738.9%52.0%
B84Sicilian, Scheveningen, classical, Nd7 system10332.0%50.0%
B85Sicilian, Scheveningen, classical14540.0%49.7%
B85Sicilian, Scheveningen, classical main line38046.3%56.1%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
B85Sicilian, Scheveningen, classical, Maroczy system2634.6%55.8%
B86Sicilian, Sozin attack26641.7%53.6%
B87Sicilian, Sozin with ...a6 and ...b583537.2%50.4%
B88Sicilian, Sozin, Fischer variation1650.0%50.0%
B88Sicilian, Sozin, Leonhardt variation65239.7%55.4%
B89Sicilian, Sozin, 7.Be3109837.8%51.0%
B89Sicilian, Velimirovic attack82034.5%52.0%
B90Sicilian, Najdorf338536.5%53.6%
B90Sicilian, Najdorf, Adams attack152239.0%52.8%
B90Sicilian, Najdorf, Byrne (English) attack2131135.7%53.1%
B90Sicilian, Najdorf, Lipnitzky attack120636.2%50.7%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation95439.9%53.8%
B92Sicilian, Najdorf, Opovcensky variation560140.5%53.4%
B93Sicilian, Najdorf, 6.f4177839.4%50.9%
B94Sicilian, Najdorf, 6.Bg597435.7%52.8%
B95Sicilian, Najdorf, 6...e6127638.2%50.0%
B96Sicilian, Najdorf, 7.f4163836.6%51.8%
B96Sicilian, Najdorf, Polugayevsky variation10737.4%54.2%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3920.5%53.8%
B97Sicilian, Najdorf, 7...Qb6178133.8%46.8%
B97Sicilian, Najdorf, Poisoned pawn variation118644.6%49.4%
B98Sicilian, Najdorf variation33629.8%57.1%
B98Sicilian, Najdorf, 7...Be713234.1%54.9%
B98Sicilian, Najdorf, Browne variation4731.9%60.6%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2250.0%47.7%
B99Sicilian, Najdorf, 7...Be7 main line65330.0%53.3%
C00French defence97229.8%55.9%
C00French defence, Steiner variation92542.1%51.6%
C00French, Alapin variation1625.0%56.3%
C00French, Chigorin variation124231.2%50.0%
C00French, King's Indian attack283536.0%51.4%
C00French, Labourdonnais variation29228.8%44.9%
C00French, Pelikan variation7639.5%51.3%
C00French, Reti (Spielmann) variation24835.5%51.6%
C00French, Reversed Philidor formation1330.8%61.5%
C00French, Schlechter variation22438.4%51.3%
C00French, Steinitz attack2326.1%43.5%
C00French, Two knights variation35135.6%52.8%
C00French, Wing gambit5440.7%59.3%
C00Lengfellner system2114.3%64.3%
C00St. George defence19045.3%58.4%
C01French, exchange variation191943.3%53.8%
C01French, exchange, Bogolyubov variation837.5%43.8%
C01French, exchange, Svenonius variation8736.8%51.7%
C02French, advance variation155631.3%56.3%
C02French, advance, Euwe variation156535.6%55.2%
C02French, advance, Milner-Barry gambit11634.5%48.3%
C02French, advance, Nimzovich system13830.4%49.3%
C02French, advance, Nimzovich variation1428.6%42.9%
C02French, advance, Paulsen attack197233.6%54.8%
C02French, advance, Steinitz variation52235.8%56.8%
C02French, advance, Wade variation39939.1%57.6%
C03French, Tarrasch294142.9%57.0%
C03French, Tarrasch, Guimard variation13627.9%61.0%
C03French, Tarrasch, Haberditz variation40.0%75.0%
C04French, Tarrasch, Guimard main line51329.4%59.6%
C05French, Tarrasch, Botvinnik variation9035.6%63.3%
C05French, Tarrasch, closed variation140631.0%60.5%
C06French, Tarrasch, Leningrad variation1921.1%84.2%
C06French, Tarrasch, closed variation, main line106937.8%59.6%
C07French, Tarrasch, Eliskases variation15347.1%54.2%
C07French, Tarrasch, open variation414546.9%53.9%
C08French, Tarrasch, open, 4.ed ed149249.8%54.7%
C09French, Tarrasch, open variation, main line119350.0%56.7%
C10French, Fort Knox variation68539.7%57.2%
C10French, Frere (Becker) variation3237.5%62.5%
C10French, Marshall variation250.0%25.0%
C10French, Paulsen variation103929.9%60.3%
C10French, Rubinstein variation276348.2%55.9%
C10French, Rubinstein, Capablanca line862.5%56.3%
C11French defence21739.2%56.5%
C11French, Burn variation558144.7%52.8%
C11French, Henneberger variation1533.3%50.0%
C11French, Steinitz variation118037.7%54.3%
C11French, Steinitz, Boleslavsky variation395536.1%57.2%
C11French, Steinitz, Bradford attack1100.0%50.0%
C11French, Steinitz, Gledhill attack12833.6%53.5%
C11French, Swiss variation6045.0%54.2%
C12French, MacCutcheon variation16040.6%45.9%
C12French, MacCutcheon, Bernstein variation3125.8%58.1%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C12French, MacCutcheon, Chigorin variation7341.1%47.9%
C12French, MacCutcheon, Dr. Olland (Dutch) variation12740.9%59.1%
C12French, MacCutcheon, Duras variation425.0%62.5%
C12French, MacCutcheon, Grigoriev variation2853.6%55.4%
C12French, MacCutcheon, Janowski variation14937.6%57.7%
C12French, MacCutcheon, Lasker variation22427.2%60.0%
C12French, MacCutcheon, Lasker variation, 8...g641235.9%59.2%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
C12French, MacCutcheon, advance variation1526.7%20.0%
C13French, Albin-Alekhine-Chatard attack34831.0%54.9%
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 variation11347.8%54.0%
C14French, classical, Pollock variation1233.3%50.0%
C14French, classical, Rubinstein variation4337.2%60.5%
C14French, classical, Stahlberg variation650.0%58.3%
C14French, classical, Steinitz variation83936.0%58.5%
C14French, classical, Tarrasch variation1414.3%50.0%
C15French, Winawer (Nimzovich) variation109939.6%55.4%
C15French, Winawer, Alekhine (Maroczy) gambit27536.0%57.3%
C15French, Winawer, Alekhine gambit1338.5%57.7%
C15French, Winawer, Alekhine gambit, Kan variation5843.1%49.1%
C15French, Winawer, Kondratiyev variation1030.0%55.0%
C15French, Winawer, fingerslip variation6030.0%45.0%
C16French, Winawer, Petrosian variation26631.2%55.5%
C16French, Winawer, advance variation107032.1%56.7%
C17French, Winawer, advance variation9741.2%58.8%
C17French, Winawer, advance, 5.a347234.1%63.2%
C17French, Winawer, advance, Bogolyubov variation41138.0%51.6%
C17French, Winawer, advance, Rauzer variation2035.0%62.5%
C17French, Winawer, advance, Russian variation6538.5%53.1%
C18French, Winawer, advance variation57827.3%62.5%
C18French, Winawer, classical variation41032.7%59.5%
C19French, Winawer, advance, 6...Ne744535.5%60.4%
C19French, Winawer, advance, Smyslov variation17729.4%61.0%
C19French, Winawer, advance, poisoned pawn variation279833.8%61.4%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation83232.3%62.3%
C19French, Winawer, advance, positional main line112830.9%58.0%
C20Alapin's opening5030.0%59.0%
C20KP, Indian opening12133.9%45.9%
C20KP, King's head opening250.0%25.0%
C20KP, Lopez opening1643.8%34.4%
C20KP, Mengarini's opening2240.9%29.5%
C20KP, Napoleon's opening1442.9%57.1%
C20KP, Patzer opening11425.4%41.7%
C20King's pawn game10436.5%51.9%
C21Centre game33137.2%55.7%
C21Danish gambit26534.7%49.1%
C21Danish gambit, Collijn defence560.0%50.0%
C21Danish gambit, Schlechter defence1315.4%46.2%
C21Danish gambit, Soerensen defence20340.9%52.0%
C21Halasz gambit2231.8%43.2%
C22Centre game45737.2%46.0%
C22Centre game, Berger variation42238.6%53.2%
C22Centre game, Charousek variation862.5%56.3%
C22Centre game, Hall variation2740.7%38.9%
C22Centre game, Paulsen attack39337.2%52.9%
C22Centre game, l'Hermet variation60.0%50.0%
C23Bishop's opening33432.3%53.6%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C23Bishop's opening, Classical variation10240.2%53.4%
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-attack21350.2%50.9%
C23Bishop's opening, Philidor variation944.4%55.6%
C23Bishop's opening, Wing gambit650.0%41.7%
C24Bishop's opening, Berlin defence167739.5%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 gambit16234.6%54.3%
C25Vienna game41935.6%57.4%
C25Vienna game, Max Lange defence3748.6%48.6%
C25Vienna, Paulsen variation19031.1%57.1%
C25Vienna, Pierce gambit2725.9%53.7%
C25Vienna, Steinitz gambit250.0%25.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation30.0%66.7%
C26Vienna game43540.9%54.0%
C26Vienna, Falkbeer variation11534.8%57.4%
C26Vienna, Mengarini variation2759.3%48.1%
C26Vienna, Paulsen-Mieses variation79039.4%52.2%
C27Boden-Kieseritsky gambit4334.9%33.7%
C27Boden-Kieseritsky gambit, Lichtenhein defence2128.6%52.4%
C27Vienna game19839.9%52.8%
C27Vienna, Alekhine variation3636.1%48.6%
C27Vienna, `Frankenstein-Dracula' variation175.9%79.4%
C28Vienna game60540.3%52.1%
C29Vienna gambit58934.8%49.5%
C29Vienna gambit, Bardeleben variation1526.7%53.3%
C29Vienna gambit, Breyer variation18230.2%51.9%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C29Vienna gambit, Paulsen attack4346.5%55.8%
C29Vienna gambit, Steinitz variation2642.3%44.2%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C30KGD, 2...Nf66829.4%60.3%
C30KGD, Keene's defence8429.8%63.7%
C30KGD, Mafia defence837.5%68.8%
C30KGD, Norwalde variation2213.6%79.5%
C30KGD, classical counter-gambit944.4%55.6%
C30KGD, classical variation25829.1%54.5%
C30KGD, classical, 4.c320130.8%59.2%
C30KGD, classical, Hanham variation450.0%50.0%
C30KGD, classical, Heath variation1346.2%53.8%
C30KGD, classical, Marshall attack771.4%50.0%
C30KGD, classical, Reti variation1100.0%50.0%
C30KGD, classical, Soldatenkov variation728.6%28.6%
C30KGD, classical, Svenonius variation1100.0%50.0%
C30King's gambit28434.9%57.6%
C31KGD, Falkbeer counter-gambit27632.2%52.7%
C31KGD, Falkbeer, 3...e43638.9%47.2%
C31KGD, Falkbeer, 4.d34650.0%64.1%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C31KGD, Falkbeer, Morphy gambit1520.0%36.7%
C31KGD, Falkbeer, Nimzovich variation2142.9%50.0%
C31KGD, Falkbeer, Rubinstein variation2910.3%56.9%
C31KGD, Falkbeer, Tartakower variation6056.7%48.3%
C31KGD, Nimzovich counter-gambit28136.7%52.1%
C32KGD, Falkbeer, 5.de5632.1%51.8%
C32KGD, Falkbeer, Charousek gambit683.3%58.3%
C32KGD, Falkbeer, Keres variation2934.5%51.7%
C32KGD, Falkbeer, Reti variation1833.3%44.4%
C32KGD, Falkbeer, main line, 7...Bf5714.3%92.9%
C33KGA, Breyer gambit333.3%50.0%
C33KGA, Carrera (Basman) gambit825.0%50.0%
C33KGA, Keres (Mason-Steinitz) gambit5543.6%45.5%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit911.1%61.1%
C33KGA, Villemson (Steinitz) gambit1428.6%50.0%
C33KGA, bishop's gambit34635.3%50.3%
C33KGA, bishop's gambit, Anderssen variation633.3%50.0%
C33KGA, bishop's gambit, Bledow variation17226.2%41.6%
C33KGA, bishop's gambit, Boden defence850.0%50.0%
C33KGA, bishop's gambit, Bogolyubov variation7435.1%48.6%
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 variation13839.9%48.2%
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 variation5728.1%57.9%
C33KGA, bishop's gambit, Paulsen attack1838.9%47.2%
C33KGA, bishop's gambit, Ruy Lopez defence3842.1%52.6%
C33KGA, bishop's gambit, Steinitz defence10127.7%50.5%
C33KGA, bishop's gambit, classical defence60.0%33.3%
C33King's gambit accepted333.3%16.7%
C34KGA, Becker defence9129.7%50.0%
C34KGA, Bonsch-Osmolovsky variation19428.4%53.4%
C34KGA, Fischer defence27131.0%46.9%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C34KGA, Schallop defence20826.9%52.9%
C34King's knight's gambit4325.6%50.0%
C35KGA, Cunningham defence25328.5%51.8%
C35KGA, Cunningham, Euwe defence12222.1%48.0%
C36KGA, Abbazia defence (classical defence, modern defence[!])11843.2%60.6%
C36KGA, Abbazia defence, modern variation70338.8%47.4%
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 gambit3737.8%37.8%
C37KGA, Rosentreter gambit2630.8%34.6%
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 gambit5036.0%24.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C39KGA, Kieseritsky, Berlin defence7635.5%45.4%
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 defence13543.7%47.0%
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) defence6845.6%40.4%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence1241.7%45.8%
C39King's knight's gambit1216.7%50.0%
C40Greco defence1225.0%45.8%
C40Gunderam defence12332.5%65.0%
C40King's knight opening20.0%50.0%
C40Latvian counter-gambit28931.1%55.0%
C40Latvian gambit, 3.Bc41560.0%56.7%
C40Latvian, Fraser defence4339.5%57.0%
C40Latvian, Nimzovich variation20.0%50.0%
C40Latvian, Polerio variation2227.3%40.9%
C40QP counter-gambit (elephant gambit)3050.0%65.0%
C40QP counter-gambit, Maroczy gambit540.0%80.0%
C41Philidor's defence47335.1%59.6%
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 variation127637.9%57.4%
C41Philidor, Larsen variation6224.2%65.3%
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 variation6947.8%37.0%
C41Philidor, Nimzovich, Locock variation450.0%50.0%
C41Philidor, Nimzovich, Rellstab variation4235.7%65.5%
C41Philidor, Nimzovich, Sokolsky variation1070.0%65.0%
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 variation100237.4%58.8%
C42Petrov three knights game37639.1%57.8%
C42Petrov's defence37640.4%52.9%
C42Petrov, Cochrane gambit7921.5%36.1%
C42Petrov, Cozio (Lasker) attack55149.0%52.5%
C42Petrov, Damiano variation2842.9%53.6%
C42Petrov, French attack966.7%66.7%
C42Petrov, Italian variation6527.7%49.2%
C42Petrov, Kaufmann attack28746.0%52.3%
C42Petrov, Nimzovich attack139744.9%55.2%
C42Petrov, Paulsen attack21141.7%50.2%
C42Petrov, classical attack98347.6%57.7%
C42Petrov, classical attack, Berger variation1566.7%53.3%
C42Petrov, classical attack, Chigorin variation63040.8%57.5%
C42Petrov, classical attack, Jaenisch variation176446.0%58.4%
C42Petrov, classical attack, Krause variation944.4%33.3%
C42Petrov, classical attack, Marshall variation111844.1%57.6%
C42Petrov, classical attack, Mason variation13543.7%55.9%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C42Petrov, classical attack, close variation19243.2%58.6%
C43Petrov, Urusov gambit1216.7%66.7%
C43Petrov, modern (Steinitz) attack5644.6%54.5%
C43Petrov, modern attack, Bardeleben variation616.7%58.3%
C43Petrov, modern attack, Steinitz variation250.0%75.0%
C43Petrov, modern attack, Symmetrical variation295644.3%52.9%
C43Petrov, modern attack, Trifunovic variation6248.4%48.4%
C43Petrov, modern attack, main line21547.9%57.4%
C44Dresden opening1618.8%40.6%
C44Inverted Hanham4429.5%46.6%
C44Inverted Hungarian3243.8%56.3%
C44King's pawn game12430.6%49.2%
C44Konstantinopolsky opening3839.5%61.8%
C44Ponziani counter-gambit12840.6%60.2%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C44Ponziani opening36331.1%46.1%
C44Ponziani, Caro variation25644.5%49.2%
C44Ponziani, Fraser defence6339.7%65.9%
C44Ponziani, Jaenisch counter-attack234944.3%52.4%
C44Ponziani, Leonhardt variation12233.6%48.8%
C44Ponziani, Reti variation3834.2%56.6%
C44Ponziani, Romanishin variation2227.3%50.0%
C44Ponziani, Steinitz variation50841.1%46.4%
C44Scotch gambit12039.2%57.1%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Scotch gambit, Benima defence5738.6%56.1%
C44Scotch gambit, Dubois-Reti defence37641.8%53.3%
C44Scotch gambit, Hanneken variation10.0%100.0%
C44Scotch opening1442.9%42.9%
C44Scotch, Goering gambit22941.5%54.8%
C44Scotch, Goering gambit, Bardeleben variation1540.0%46.7%
C44Scotch, Lolli variation2231.8%56.8%
C44Scotch, Relfsson gambit ('MacLopez')850.0%62.5%
C44Tayler opening20.0%50.0%
C45Scotch game282742.3%54.3%
C45Scotch, Blackburne attack2147.6%47.6%
C45Scotch, Blumenfeld attack1637.5%31.3%
C45Scotch, Ghulam Kassim variation875.0%50.0%
C45Scotch, Horwitz attack3231.3%59.4%
C45Scotch, Meitner variation3754.1%54.1%
C45Scotch, Mieses variation158941.7%53.9%
C45Scotch, Paulsen attack728.6%71.4%
C45Scotch, Potter variation62838.7%52.3%
C45Scotch, Pulling counter-attack520.0%70.0%
C45Scotch, Romanishin variation7339.7%58.2%
C45Scotch, Schmidt variation79249.9%47.9%
C45Scotch, Steinitz variation4632.6%57.6%
C45Scotch, Tartakower variation1833.3%38.9%
C46Four knights game88040.5%50.2%
C46Four knights, Gunsberg variation13046.2%51.5%
C46Four knights, Italian variation22744.1%47.6%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C46Three knights game36130.7%59.7%
C46Three knights, Schlechter variation4438.6%53.4%
C46Three knights, Steinitz variation23827.7%56.3%
C46Three knights, Steinitz, Rosenthal variation2540.0%48.0%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C47Four knights, Belgrade gambit12645.2%52.8%
C47Four knights, Scotch variation2626.9%51.9%
C47Four knights, Scotch, 4...exd451651.2%53.9%
C47Four knights, Scotch, Krause variation4837.5%64.6%
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-gambit127840.1%52.2%
C48Four knights, Rubinstein counter-gambit, 5.Be21040.0%40.0%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1752.9%44.1%
C48Four knights, Rubinstein counter-gambit, Henneberger variation7347.9%51.4%
C48Four knights, Rubinstein counter-gambit, exchange variation17965.9%52.0%
C48Four knights, Spanish variation32048.1%55.0%
C48Four knights, Spanish, classical defence23544.7%50.4%
C48Four knights, Spielmann variation862.5%43.8%
C49Four knights8650.0%48.3%
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 Lopez25241.7%56.2%
C49Four knights, symmetrical variation21540.9%55.8%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C49Four knights, symmetrical, Capablanca variation2454.2%60.4%
C49Four knights, symmetrical, Maroczy system7143.7%52.8%
C49Four knights, symmetrical, Metger unpin35136.8%50.6%
C49Four knights, symmetrical, Pillsbury variation6845.6%44.9%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C50Giuoco Pianissimo243237.7%53.3%
C50Giuoco Pianissimo, Canal variation20742.5%52.7%
C50Giuoco Pianissimo, Italian four knights variation51137.2%51.5%
C50Giuoco Piano152639.5%52.7%
C50Giuoco Piano, four knights variation6737.3%54.5%
C50Hungarian defence21437.9%49.8%
C50King's pawn game27935.5%60.4%
C50Rousseau gambit333.3%50.0%
C51Evans counter-gambit3426.5%57.4%
C51Evans gambit1136.4%63.6%
C51Evans gambit declined6040.0%53.3%
C51Evans gambit declined, 5.a420041.0%47.0%
C51Evans gambit declined, Lange variation20.0%0.0%
C51Evans gambit declined, Showalter variation4847.9%55.2%
C51Evans gambit, 5...Be77335.6%60.3%
C51Evans gambit, Cordel variation10246.1%45.6%
C51Evans gambit, Fraser attack1127.3%59.1%
C51Evans gambit, Goering attack333.3%83.3%
C51Evans gambit, Morphy attack2740.7%53.7%
C51Evans gambit, Paulsen variation2025.0%67.5%
C51Evans gambit, Stone-Ware variation24931.7%53.6%
C51Evans gambit, Ulvestad variation20.0%100.0%
C51Evans gambit, normal variation3315.2%43.9%
C52Evans gambit38238.2%48.7%
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 defence4723.4%73.4%
C52Evans gambit, compromised defence, Paulsen variation1723.5%58.8%
C52Evans gambit, compromised defence, Potter variation10.0%100.0%
C53Giuoco Piano280838.2%52.2%
C53Giuoco Piano, Anderssen variation3256.3%43.8%
C53Giuoco Piano, Bird's attack18732.1%50.8%
C53Giuoco Piano, Eisinger variation20.0%100.0%
C53Giuoco Piano, LaBourdonnais variation4942.9%56.1%
C53Giuoco Piano, Mestel variation1216.7%66.7%
C53Giuoco Piano, centre-holding variation8242.7%60.4%
C53Giuoco Piano, close variation13036.2%58.8%
C54Giuoco Piano21953.4%50.9%
C54Giuoco Piano, Moeller (Therkatz) attack3745.9%47.3%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C55Giuoco piano20.0%50.0%
C55Two knights defence11336.3%49.1%
C55Two knights defence (Modern bishop's opening)171138.3%56.0%
C55Two knights defence, Keidanz variation2100.0%50.0%
C55Two knights defence, Perreux variation3652.8%54.2%
C55Two knights, Max Lange attack4030.0%60.0%
C55Two knights, Max Lange attack, Krause variation450.0%75.0%
C55Two knights, Max Lange attack, Loman defence10.0%100.0%
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 variation2450.0%54.2%
C55Two knights, Max Lange attack, Steinitz variation1637.5%68.8%
C56Two knights defence14845.3%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 variation8538.8%48.8%
C57Two knights defence, Fritz, Gruber variation1233.3%50.0%
C57Two knights defence, Lolli attack2035.0%57.5%
C57Two knights defence, Pincus variation1040.0%30.0%
C57Two knights defence, Ulvestad variation9850.0%45.4%
C57Two knights defence, Wilkes Barre (Traxler) variation11533.9%57.0%
C58Two knights defence30435.5%56.3%
C58Two knights defence, Blackburne variation30.0%66.7%
C58Two knights defence, Bogolyubov variation7630.3%42.8%
C58Two knights defence, Colman variation8232.9%47.0%
C58Two knights defence, Kieseritsky variation4027.5%58.8%
C58Two knights defence, Paoli variation933.3%72.2%
C58Two knights defence, Yankovich variation1435.7%25.0%
C59Two knights defence20337.9%49.0%
C59Two knights defence, Goering variation812.5%31.3%
C59Two knights defence, Steinitz variation39230.9%48.1%
C60Ruy Lopez (Spanish opening)7632.9%55.9%
C60Ruy Lopez, Cozio defence50237.6%52.5%
C60Ruy Lopez, Cozio defence, Paulsen variation6035.0%67.5%
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) defence55340.3%53.1%
C61Ruy Lopez, Bird's defence54436.4%55.9%
C61Ruy Lopez, Bird's defence, Paulsen variation850.0%62.5%
C62Ruy Lopez, old Steinitz defence45236.1%55.0%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation2040.0%55.0%
C63Ruy Lopez, Schliemann defence49141.8%57.5%
C63Ruy Lopez, Schliemann defence, Berger variation48144.1%56.3%
C64Ruy Lopez, Cordel gambit9740.2%56.2%
C64Ruy Lopez, classical (Cordel) defence31939.2%53.1%
C64Ruy Lopez, classical defence, 4.c334941.3%56.4%
C64Ruy Lopez, classical defence, Benelux variation 44038.9%55.6%
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 defence446639.0%51.9%
C65Ruy Lopez, Berlin defence, 4.O-O24040.0%58.8%
C65Ruy Lopez, Berlin defence, Anderssen variation250.0%75.0%
C65Ruy Lopez, Berlin defence, Beverwijk variation60438.4%57.5%
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 attack11353.1%53.1%
C66Ruy Lopez, Berlin defence, 4.O-O, d614642.5%58.2%
C66Ruy Lopez, Berlin defence, hedgehog variation12250.8%58.2%
C66Ruy Lopez, closed Berlin defence, Bernstein variation2245.5%59.1%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
C66Ruy Lopez, closed Berlin defence, Showalter variation6445.3%57.0%
C66Ruy Lopez, closed Berlin defence, Wolf variation6157.4%56.6%
C67Ruy Lopez, Berlin defence, Cordel variation7534.7%61.3%
C67Ruy Lopez, Berlin defence, Minckwitz variation4946.9%60.2%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation4641.3%62.0%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C67Ruy Lopez, Berlin defence, Winawer attack3135.5%69.4%
C67Ruy Lopez, Berlin defence, Zukertort variation1952.6%63.2%
C67Ruy Lopez, Berlin defence, open variation444347.2%53.5%
C67Ruy Lopez, open Berlin defence, 5...Be79839.8%52.6%
C67Ruy Lopez, open Berlin defence, Showalter variation2222.7%47.7%
C67Ruy Lopez, open Berlin defence, l'Hermet variation11555.7%50.4%
C68Ruy Lopez, exchange variation10236.3%53.4%
C68Ruy Lopez, exchange, Alekhine variation2236.4%45.5%
C68Ruy Lopez, exchange, Keres variation15147.0%50.7%
C68Ruy Lopez, exchange, Romanovsky variation4235.7%51.2%
C69Ruy Lopez, exchange variation, 5.O-O103240.7%53.4%
C69Ruy Lopez, exchange variation, Alapin gambit35742.3%52.0%
C69Ruy Lopez, exchange, Bronstein variation75736.9%49.9%
C69Ruy Lopez, exchange, Gligoric variation85143.9%54.6%
C70Ruy Lopez16836.9%53.0%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C70Ruy Lopez, Caro variation10042.0%58.0%
C70Ruy Lopez, Classical defence deferred12339.8%58.1%
C70Ruy Lopez, Cozio defence deferred49841.2%53.9%
C70Ruy Lopez, Graz variation1266.7%58.3%
C70Ruy Lopez, Schliemann defence deferred3534.3%62.9%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation16639.8%62.7%
C70Ruy Lopez, fianchetto defence deferred10249.0%54.9%
C71Ruy Lopez, modern Steinitz defence18042.2%56.7%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation23739.2%56.8%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C72Ruy Lopez, modern Steinitz defence, 5.O-O82239.9%57.7%
C73Ruy Lopez, modern Steinitz defence, Alapin variation26231.3%50.8%
C73Ruy Lopez, modern Steinitz defence, Richter variation24349.0%50.8%
C74Ruy Lopez, Siesta, Kopayev variation18433.2%55.2%
C74Ruy Lopez, modern Steinitz defence16729.9%61.1%
C74Ruy Lopez, modern Steinitz defence, siesta variation10430.8%49.0%
C75Ruy Lopez, modern Steinitz defence22743.2%52.9%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation15928.3%58.8%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation49635.5%53.6%
C77Ruy Lopez, Anderssen variation153142.8%52.2%
C77Ruy Lopez, Morphy defence26538.5%56.2%
C77Ruy Lopez, Morphy defence, Duras variation7538.7%59.3%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)10247.1%45.1%
C77Ruy Lopez, Wormald (Alapin) attack51942.4%53.2%
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-O131145.9%54.4%
C78Ruy Lopez, Archangelsk (counterthrust) variation178742.6%54.8%
C78Ruy Lopez, Moeller defence67742.2%54.1%
C78Ruy Lopez, Rabinovich variation10.0%0.0%
C78Ruy Lopez, Wing attack1643.8%53.1%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)42638.3%55.0%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1266.7%58.3%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation3148.4%56.5%
C80Ruy Lopez, open (Tarrasch) defence6940.6%63.8%
C80Ruy Lopez, open, 6.d45040.0%44.0%
C80Ruy Lopez, open, 7.Bb349240.4%52.9%
C80Ruy Lopez, open, 8...Be6128938.4%43.8%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C80Ruy Lopez, open, Bernstein variation97248.9%62.7%
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 attack27149.8%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 variation16041.9%60.9%
C82Ruy Lopez, open, Italian variation9851.0%64.3%
C82Ruy Lopez, open, Motzko attack7345.2%56.8%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation1844.4%72.2%
C82Ruy Lopez, open, St. Petersburg variation20542.0%65.4%
C83Ruy Lopez, open, 9...Be7, 10.Re14637.0%53.3%
C83Ruy Lopez, open, Breslau variation250.0%75.0%
C83Ruy Lopez, open, Malkin variation1662.5%56.3%
C83Ruy Lopez, open, classical defence22647.8%58.8%
C84Ruy Lopez, closed defence166640.9%52.6%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C84Ruy Lopez, closed, centre attack18749.2%47.6%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)148439.9%49.3%
C86Ruy Lopez, Worrall attack3250.0%56.3%
C86Ruy Lopez, Worrall attack, sharp line28540.4%52.1%
C86Ruy Lopez, Worrall attack, solid line14138.3%50.4%
C87Ruy Lopez, closed, Averbach variation38241.1%58.8%
C88Ruy Lopez, Trajkovic counter-attack67142.2%52.2%
C88Ruy Lopez, closed131541.7%53.2%
C88Ruy Lopez, closed, 7...O-O325340.9%52.4%
C88Ruy Lopez, closed, 7...d6, 8.d42334.8%21.7%
C88Ruy Lopez, closed, 8.c33545.7%57.1%
C88Ruy Lopez, closed, Balla variation4637.0%55.4%
C88Ruy Lopez, closed, anti-Marshall 8.a4176940.5%53.8%
C89Ruy Lopez, Marshall counter-attack56452.0%54.3%
C89Ruy Lopez, Marshall counter-attack, 11...c621645.8%55.3%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
C89Ruy Lopez, Marshall, main line, 12.d2d422840.4%63.2%
C89Ruy Lopez, Marshall, main line, 14...Qh345950.3%51.3%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
C90Ruy Lopez, closed (with ...d6)120337.1%51.5%
C90Ruy Lopez, closed, Lutikov variation3951.3%56.4%
C90Ruy Lopez, closed, Pilnik variation86736.0%51.8%
C90Ruy Lopez, closed, Suetin variation9337.6%58.6%
C91Ruy Lopez, closed, 9.d4125539.6%58.0%
C91Ruy Lopez, closed, Bogolyubov variation388843.5%53.8%
C92Ruy Lopez, closed, 9.h342442.7%52.5%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)201138.8%56.6%
C92Ruy Lopez, closed, Keres (9...a5) variation2055.0%47.5%
C92Ruy Lopez, closed, Kholmov variation13231.8%65.2%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation34242.7%63.7%
C93Ruy Lopez, closed, Smyslov defence26040.8%58.8%
C94Ruy Lopez, closed, Breyer defence10937.6%57.3%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation80039.8%56.4%
C95Ruy Lopez, closed, Breyer, Gligoric variation5942.4%58.5%
C95Ruy Lopez, closed, Breyer, Simagin variation2540.0%56.0%
C96Ruy Lopez, closed (10...c5)67832.9%65.0%
C96Ruy Lopez, closed (8...Na5)3650.0%63.9%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
C96Ruy Lopez, closed, Keres (...Nd7) defence23336.5%65.9%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C97Ruy Lopez, closed, Chigorin defence81031.0%62.9%
C98Ruy Lopez, closed, Chigorin, 12...Nc615030.7%63.3%
C99Ruy Lopez, closed, Chigorin, 12...c5d491240.2%62.9%
D00Blackmar gambit23338.2%40.6%
D00Blackmar-Diemer gambit6643.9%41.7%
D00Blackmar-Diemer, Euwe defence3724.3%47.3%
D00Blackmar-Diemer, Lemberg counter-gambit1816.7%58.3%
D00Levitsky attack (Queen's bishop attack)266434.8%51.1%
D00Queen's pawn game123736.0%50.5%
D00Queen's pawn, Anti-Veresov450.0%50.0%
D00Queen's pawn, Chigorin variation73931.8%51.5%
D00Queen's pawn, Mason variation156836.8%53.0%
D00Queen's pawn, Mason variation, Steinitz counter-gambit69037.5%51.7%
D00Queen's pawn, stonewall attack7532.0%41.3%
D01Richter-Veresov attack84031.2%48.5%
D01Richter-Veresov attack, Richter variation2725.9%57.4%
D01Richter-Veresov attack, Veresov variation3441.2%47.1%
D02Queen's bishop game187938.7%53.5%
D02Queen's pawn game671339.8%53.1%
D02Queen's pawn game, Chigorin variation68438.9%56.3%
D02Queen's pawn game, Krause variation64140.2%54.6%
D03Torre attack (Tartakower variation)87138.1%50.7%
D04Queen's pawn game129938.3%51.7%
D05Colle system25445.3%52.2%
D05Queen's pawn game85836.0%52.3%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation37437.7%54.1%
D05Queen's pawn game, Zukertort variation4546.7%58.9%
D06QGD, Grau (Sahovic) defence32433.0%59.4%
D06QGD, Marshall defence34240.6%55.1%
D06QGD, symmetrical (Austrian) defence14944.3%59.7%
D07QGD, Chigorin defence109035.7%56.8%
D07QGD, Chigorin defence, Janowski variation12033.3%62.5%
D08QGD, Albin counter-gambit55837.3%54.8%
D08QGD, Albin counter-gambit, Alapin variation10742.1%58.4%
D08QGD, Albin counter-gambit, Balogh variation1926.3%76.3%
D08QGD, Albin counter-gambit, Janowski variation2123.8%73.8%
D08QGD, Albin counter-gambit, Krenosz variation1428.6%57.1%
D08QGD, Albin counter-gambit, Lasker trap50.0%60.0%
D09QGD, Albin counter-gambit, 5.g340339.5%56.2%
D10QGD Slav defence484140.3%54.3%
D10QGD Slav defence, Alekhine variation30438.2%56.9%
D10QGD Slav defence, exchange variation190643.5%55.8%
D10QGD Slav, Winawer counter-gambit22431.3%53.1%
D11QGD Slav, 3.Nf3361240.0%55.1%
D11QGD Slav, 4.e3535042.0%55.1%
D11QGD Slav, Breyer variation24240.9%58.5%
D12QGD Slav, 4.e3 Bf5372540.2%54.6%
D12QGD Slav, Amsterdam variation2254.5%45.5%
D12QGD Slav, exchange variation10634.9%48.6%
D13QGD Slav, exchange variation82847.2%55.4%
D14QGD Slav, exchange variation, 6.Bf4 Bf572150.2%51.7%
D14QGD Slav, exchange, Trifunovic variation23650.4%52.8%
D15QGD Slav accepted14139.0%50.7%
D15QGD Slav, 4.Nc3498539.9%55.0%
D15QGD Slav, 5.e3 (Alekhine variation)20332.0%57.4%
D15QGD Slav, Schlechter variation38741.9%59.7%
D15QGD Slav, Slav gambit4035.0%60.0%
D15QGD Slav, Suechting variation20431.9%60.0%
D15QGD Slav, Tolush-Geller gambit14427.8%42.4%
D16QGD Slav accepted, Alapin variation23336.1%64.8%
D16QGD Slav, Smyslov variation9137.4%60.4%
D16QGD Slav, Soultanbeieff variation50449.2%52.6%
D16QGD Slav, Steiner variation27436.1%63.3%
D17QGD Slav, Carlsbad variation49637.1%61.1%
D17QGD Slav, Czech defence47348.0%55.5%
D17QGD Slav, Krause attack82039.1%58.2%
D17QGD Slav, Wiesbaden variation69542.9%56.8%
D18QGD Slav, Dutch variation36541.4%59.3%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D19QGD Slav, Dutch variation154940.0%56.8%
D19QGD Slav, Dutch variation, main line25742.0%57.6%
D19QGD Slav, Dutch, Saemisch variation250.0%25.0%
D20QGA, 3.e4343639.7%56.3%
D20QGA, Linares variation10335.9%58.7%
D20Queen's gambit accepted122145.1%54.7%
D21QGA, 3.Nf343642.0%58.1%
D21QGA, Alekhine defense, Borisenko-Furman variation3930.8%43.6%
D21QGA, Ericson variation60.0%33.3%
D22QGA, Alekhine defence46239.0%57.6%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
D22QGA, Haberditz variation20554.1%54.4%
D23QGA, Mannheim variation47640.5%53.5%
D23Queen's gambit accepted6045.0%52.5%
D24QGA, 4.Nc332538.2%51.1%
D24QGA, Bogolyubov variation19045.8%56.6%
D25QGA, 4.e317934.6%57.0%
D25QGA, Flohr variation9427.7%64.9%
D25QGA, Janowsky-Larsen variation53538.7%58.2%
D25QGA, Smyslov variation10551.4%60.0%
D26QGA, 4...e632544.3%52.9%
D26QGA, classical variation86351.7%53.3%
D26QGA, classical variation, 6.O-O18248.4%58.2%
D26QGA, classical, Furman variation366.7%33.3%
D26QGA, classical, Steinitz variation11754.7%60.7%
D27QGA, classical, 6...a6432151.7%55.1%
D27QGA, classical, Geller variation8852.3%56.8%
D27QGA, classical, Rubinstein variation158348.0%56.3%
D28QGA, classical, 7...b527549.8%54.4%
D28QGA, classical, 7.Qe26750.7%61.2%
D28QGA, classical, Flohr variation10.0%0.0%
D29QGA, classical, 8...Bb734941.0%48.0%
D29QGA, classical, Smyslov variation4353.5%45.3%
D30QGD103346.7%52.5%
D30QGD Slav47142.9%53.9%
D30QGD Slav, Semmering variation3531.4%47.1%
D30QGD, Capablanca variation3828.9%61.8%
D30QGD, Capablanca-Duras variation40844.6%52.7%
D30QGD, Hastings variation71947.8%51.9%
D30QGD, Stonewall variation450.0%75.0%
D30QGD, Vienna variation100452.6%52.2%
D30Queen's gambit declined713744.2%55.4%
D31QGD, 3.Nc3119038.9%54.5%
D31QGD, Alapin variation1723.5%64.7%
D31QGD, Charousek (Petrosian) variation198845.5%53.9%
D31QGD, Janowski variation28140.9%53.6%
D31QGD, semi-Slav139339.7%53.6%
D31QGD, semi-Slav, Abrahams variation16134.2%41.9%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
D31QGD, semi-Slav, Marshall gambit118742.7%54.1%
D31QGD, semi-Slav, Noteboom variation33738.6%50.4%
D32QGD, Tarrasch defence52244.4%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 gambit9840.8%61.2%
D33QGD, Tarrasch, Folkestone (Swedish) variation18848.4%52.9%
D33QGD, Tarrasch, Prague variation19039.5%52.9%
D33QGD, Tarrasch, Schlechter-Rubinstein system5538.2%53.6%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%25.0%
D33QGD, Tarrasch, Wagner variation4156.1%54.9%
D34QGD, Tarrasch, Bogolyubov variation250.0%25.0%
D34QGD, Tarrasch, Prague variation, 7...Be719344.0%55.7%
D34QGD, Tarrasch, Prague variation, 9.Bg561346.8%58.3%
D34QGD, Tarrasch, Prague variation, Normal position71449.4%55.7%
D34QGD, Tarrasch, Reti variation3560.0%61.4%
D35QGD, 3...Nf613135.1%50.4%
D35QGD, Harrwitz attack26350.6%54.9%
D35QGD, exchange variation42642.3%55.9%
D35QGD, exchange, Saemisch variation36446.7%53.3%
D35QGD, exchange, positional line121641.0%54.5%
D35QGD, exchange, positional line, 5...c695043.1%55.6%
D36QGD, exchange, positional line, 6.Qc243241.9%54.1%
D37QGD, 4.Nf3666146.1%53.3%
D37QGD, classical variation (5.Bf4)491445.3%55.1%
D38QGD, Ragozin variation529245.7%52.7%
D39QGD, Ragozin, Vienna variation175549.1%51.2%
D40QGD, Semi-Tarrasch defence44842.2%55.2%
D40QGD, Semi-Tarrasch defence, Pillsbury variation8047.5%58.8%
D40QGD, Semi-Tarrasch, Levenfish variation540.0%60.0%
D40QGD, Semi-Tarrasch, symmetrical variation2544.0%54.0%
D41QGD, Semi-Tarrasch with e329844.6%57.6%
D41QGD, Semi-Tarrasch, 5.cd75248.5%56.4%
D41QGD, Semi-Tarrasch, Kmoch variation966.7%44.4%
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%
D42QGD, Semi-Tarrasch, 7.Bd336344.4%54.4%
D43QGD semi-Slav840841.5%53.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D44QGD semi-Slav, 5.Bg5 dc20746.4%49.8%
D44QGD semi-Slav, Botvinnik system (anti-Meran)8137.0%56.8%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D44QGD semi-Slav, anti-Meran gambit81134.9%58.5%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation17430.5%65.8%
D44QGD semi-Slav, anti-Meran, Szabo variation2520.0%38.0%
D45QGD semi-Slav, 5...Nd766438.4%52.8%
D45QGD semi-Slav, 5.e348239.0%56.8%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1926.3%44.7%
D45QGD semi-Slav, Stoltz variation1265143.6%53.2%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)253043.6%54.3%
D45QGD semi-Slav, stonewall defence1250.0%50.0%
D46QGD semi-Slav, 6.Bd34235.7%65.5%
D46QGD semi-Slav, Bogolyubov variation18444.0%55.7%
D46QGD semi-Slav, Chigorin defence45346.1%54.2%
D46QGD semi-Slav, Romih variation19035.3%63.9%
D47QGD semi-Slav, 7.Bc47433.8%54.7%
D47QGD semi-Slav, Meran variation139549.5%54.0%
D47QGD semi-Slav, Meran, Wade variation709539.6%53.6%
D47QGD semi-Slav, neo-Meran (Lundin variation)32748.9%54.4%
D48QGD semi-Slav, Meran224.5%43.2%
D48QGD semi-Slav, Meran, 8...a6144649.4%48.8%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
D48QGD semi-Slav, Meran, Reynolds' variation78839.6%56.1%
D48QGD semi-Slav, Meran, old main line12236.1%52.5%
D49QGD semi-Slav, Meran, Blumenfeld variation20143.8%53.7%
D49QGD semi-Slav, Meran, Rabinovich variation7830.8%47.4%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
D49QGD semi-Slav, Meran, Sozin variation16844.0%47.0%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
D50QGD, 4.Bg543237.7%57.8%
D50QGD, Been-Koomen variation3253.1%48.4%
D50QGD, Canal (Venice) variation1030.0%55.0%
D50QGD, Semi-Tarrasch5949.2%51.7%
D50QGD, Semi-Tarrasch, Krause variation1100.0%50.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1540.0%53.3%
D51QGD4845.8%58.3%
D51QGD, 4.Bg5 Nbd79938.4%54.5%
D51QGD, 5...c619546.7%50.0%
D51QGD, Alekhine variation40.0%50.0%
D51QGD, Capablanca anti-Cambridge Springs variation4337.2%60.5%
D51QGD, Manhattan variation2142.9%54.8%
D51QGD, Rochlin variation1154.5%45.5%
D52QGD22039.5%56.6%
D52QGD, Cambridge Springs defence4645.7%46.7%
D52QGD, Cambridge Springs defence, 7.cd6630.3%51.5%
D52QGD, Cambridge Springs defence, Argentine variation2128.6%42.9%
D52QGD, Cambridge Springs defence, Bogoljubow variation50049.6%55.4%
D52QGD, Cambridge Springs defence, Capablanca variation3636.1%59.7%
D52QGD, Cambridge Springs defence, Rubinstein variation20138.8%56.2%
D52QGD, Cambridge Springs defence, Yugoslav variation49537.6%56.0%
D53QGD, 4.Bg5 Be7117545.4%55.1%
D53QGD, 4.Bg5 Be7, 5.e3 O-O8744.8%51.1%
D53QGD, Lasker variation633.3%66.7%
D54QGD, Anti-neo-orthodox variation13645.6%55.1%
D55QGD, 6.Nf317735.6%55.6%
D55QGD, Neo-orthodox variation837.5%56.3%
D55QGD, Neo-orthodox variation, 7.Bh417546.9%56.0%
D55QGD, Neo-orthodox variation, 7.Bxf639146.3%51.3%
D55QGD, Petrosian variation39753.9%53.1%
D55QGD, Pillsbury attack250.0%75.0%
D56QGD, Lasker defence48147.4%53.4%
D56QGD, Lasker defence, Teichmann variation11550.4%49.6%
D57QGD, Lasker defence, Bernstein variation3857.9%55.3%
D57QGD, Lasker defence, main line16152.8%55.0%
D58QGD, Tartakower (Makagonov-Bondarevsky) system521946.5%52.1%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd524348.1%45.5%
D59QGD, Tartakower variation12848.4%47.7%
D60QGD, Orthodox defence11833.9%53.4%
D60QGD, Orthodox defence, Botvinnik variation9736.1%51.0%
D60QGD, Orthodox defence, Rauzer variation10549.5%57.1%
D61QGD, Orthodox defence, Rubinstein variation39444.7%53.8%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)23549.8%55.1%
D63QGD, Orthodox defence11947.1%59.7%
D63QGD, Orthodox defence, 7.Rc127040.0%56.3%
D63QGD, Orthodox defence, Capablanca variation540.0%60.0%
D63QGD, Orthodox defence, Pillsbury attack2552.0%58.0%
D63QGD, Orthodox defence, Swiss (Henneberger) variation12845.3%57.8%
D63QGD, Orthodox defence, Swiss, Karlsbad variation32644.2%53.1%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)11046.4%55.9%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation3633.3%61.1%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation2236.4%36.4%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
D65QGD, Orthodox defence, Rubinstein attack, main line2147.6%61.9%
D66QGD, Orthodox defence, Bd3 line32147.4%57.9%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation2544.0%62.0%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
D67QGD, Orthodox defence, Bd3 line, 11.O-O6636.4%65.2%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation6755.2%60.4%
D68QGD, Orthodox defence, classical variation8150.6%56.2%
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) defence22838.2%52.4%
D70Neo-Gruenfeld defence30536.4%54.6%
D71Neo-Gruenfeld, 5.cd35946.8%56.0%
D72Neo-Gruenfeld, 5.cd, main line26934.2%60.6%
D73Neo-Gruenfeld, 5.Nf392650.3%55.3%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O27646.4%56.5%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc321545.6%57.7%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc3234.4%67.2%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb659245.1%57.9%
D77Neo-Gruenfeld, 6.O-O79746.7%54.6%
D78Neo-Gruenfeld, 6.O-O c689143.2%54.2%
D79Neo-Gruenfeld, 6.O-O, main line58949.4%54.6%
D80Gruenfeld defence125645.3%53.0%
D80Gruenfeld, Lundin variation10.0%0.0%
D80Gruenfeld, Stockholm variation88343.1%53.6%
D81Gruenfeld, Russian variation69441.2%58.8%
D82Gruenfeld, 4.Bf468042.6%53.2%
D83Gruenfeld, Gruenfeld gambit7646.1%55.9%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation2560.0%62.0%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation45141.2%57.6%
D84Gruenfeld, Gruenfeld gambit accepted14342.7%57.7%
D85Gruenfeld, exchange variation359347.7%56.0%
D85Gruenfeld, modern exchange variation352347.0%56.2%
D86Gruenfeld, exchange, Larsen variation1136.4%54.5%
D86Gruenfeld, exchange, Simagin's improved variation15639.7%54.5%
D86Gruenfeld, exchange, Simagin's lesser variation6147.5%58.2%
D86Gruenfeld, exchange, classical variation118846.6%55.4%
D87Gruenfeld, exchange, Seville variation9254.3%62.0%
D87Gruenfeld, exchange, Spassky variation59742.9%55.9%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd26341.8%60.5%
D89Gruenfeld, Spassky variation, main line, 13.Bd37540.0%48.0%
D89Gruenfeld, exchange, Sokolsky variation1241.7%45.8%
D90Gruenfeld, Flohr variation36838.6%54.3%
D90Gruenfeld, Schlechter variation4425.0%51.1%
D90Gruenfeld, Three knights variation83947.9%53.9%
D91Gruenfeld, 5.Bg5103139.8%48.3%
D92Gruenfeld, 5.Bf484444.3%55.8%
D93Gruenfeld with Bf4 e335749.3%54.3%
D94Gruenfeld with e3 Bd32540.0%48.0%
D94Gruenfeld, 5.e347543.6%56.7%
D94Gruenfeld, Flohr defence2352.2%60.9%
D94Gruenfeld, Makogonov variation12740.2%50.8%
D94Gruenfeld, Opovcensky variation21542.3%51.9%
D94Gruenfeld, Smyslov defence18047.2%57.5%
D95Gruenfeld with e3 & Qb34337.2%58.1%
D95Gruenfeld, Botvinnik variation11540.0%52.2%
D96Gruenfeld, Russian variation40440.1%53.0%
D97Gruenfeld, Russian variation with e46331.7%61.9%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation187545.2%51.3%
D97Gruenfeld, Russian, Byrne (Simagin) variation15940.9%60.7%
D97Gruenfeld, Russian, Levenfish variation2437.5%56.3%
D97Gruenfeld, Russian, Prins variation48044.2%56.9%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation27244.1%58.1%
D98Gruenfeld, Russian, Keres variation2147.6%47.6%
D98Gruenfeld, Russian, Smyslov variation36141.8%58.6%
D99Gruenfeld defence, Smyslov, Yugoslav variation2524.0%48.0%
D99Gruenfeld defence, Smyslov, main line21740.6%58.1%
E00Catalan opening421541.8%54.8%
E00Neo-Indian (Seirawan) attack27230.1%50.4%
E00Queen's pawn game59537.3%56.5%
E01Catalan, closed72447.7%54.2%
E02Catalan, open, 5.Qa419744.2%57.6%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc415549.7%44.2%
E03Catalan, open, Alekhine variation4835.4%49.0%
E04Catalan, open, 5.Nf3515044.0%53.7%
E05Catalan, open, classical line16749.7%57.8%
E06Catalan, closed, 5.Nf3349148.8%54.2%
E07Catalan, closed, 6...Nbd712944.2%51.6%
E07Catalan, closed, Botvinnik variation11837.3%48.3%
E08Catalan, closed, 7.Qc213236.4%61.4%
E08Catalan, closed, Qc2 & b329839.9%50.8%
E08Catalan, closed, Spassky gambit1127.3%50.0%
E08Catalan, closed, Zagoryansky variation1060.0%50.0%
E09Catalan, closed, Sokolsky variation520.0%50.0%
E09Catalan, closed, main line29735.4%59.1%
E10Blumenfeld counter-gambit38540.3%56.2%
E10Blumenfeld counter-gambit accepted15739.5%56.1%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation25337.5%55.5%
E10Blumenfeld counter-gambit, Spielmann variation16237.0%59.3%
E10Doery defence3336.4%57.6%
E10Dzindzikhashvili defence17741.8%52.0%
E10Queen's pawn game525943.9%55.4%
E11Bogo-Indian defence209139.8%55.4%
E11Bogo-Indian defence, Gruenfeld variation262739.6%56.5%
E11Bogo-Indian defence, Monticelli trap2142.9%40.5%
E11Bogo-Indian defence, Nimzovich variation177839.4%57.6%
E12Queen's Indian defence77340.6%54.1%
E12Queen's Indian, 4.Nc3530640.1%53.2%
E12Queen's Indian, 4.Nc3, Botvinnik variation4425.0%48.9%
E12Queen's Indian, Miles variation169743.0%53.7%
E12Queen's Indian, Petrosian system770043.0%54.3%
E13Queen's Indian, 4.Nc3, main line27837.1%52.7%
E14Queen's Indian, 4.e3198839.3%53.0%
E14Queen's Indian, Averbakh variation425.0%37.5%
E15Queen's Indian, 4.g3305947.4%55.3%
E15Queen's Indian, 4.g3 Bb737641.0%53.5%
E15Queen's Indian, Buerger variation5937.3%61.0%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1648241.5%56.5%
E15Queen's Indian, Rubinstein variation17934.6%59.8%
E16Queen's Indian, Capablanca variation57242.8%57.1%
E16Queen's Indian, Riumin variation27237.9%58.3%
E16Queen's Indian, Yates variation47540.8%57.9%
E17Queen's Indian, 5.Bg2 Be74934.7%48.0%
E17Queen's Indian, Euwe variation8047.5%55.0%
E17Queen's Indian, Opovcensky variation82640.4%55.3%
E17Queen's Indian, anti-Queen's Indian system46440.9%53.0%
E17Queen's Indian, old main line, 6.O-O118843.0%58.1%
E18Queen's Indian, old main line, 7.Nc3188144.2%57.0%
E19Queen's Indian, old main line, 9.Qxc3147947.3%58.0%
E20Nimzo-Indian defence24346.1%52.7%
E20Nimzo-Indian, Kmoch variation113637.1%53.3%
E20Nimzo-Indian, Mikenas attack850.0%62.5%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system59443.4%54.4%
E21Nimzo-Indian, three knights variation321941.0%54.4%
E21Nimzo-Indian, three knights, Euwe variation862.5%56.3%
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%
E22Nimzo-Indian, Spielmann variation60936.8%53.5%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc611040.9%45.9%
E23Nimzo-Indian, Spielmann, Karlsbad variation3933.3%47.4%
E23Nimzo-Indian, Spielmann, San Remo variation2540.0%56.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
E24Nimzo-Indian, Saemisch variation41037.6%52.4%
E24Nimzo-Indian, Saemisch, Botvinnik variation9338.7%44.1%
E25Nimzo-Indian, Saemisch variation19541.5%55.1%
E25Nimzo-Indian, Saemisch, Keres variation32246.9%54.5%
E25Nimzo-Indian, Saemisch, Romanovsky variation13355.6%52.6%
E26Nimzo-Indian, Saemisch variation24736.8%56.9%
E26Nimzo-Indian, Saemisch, O'Kelly variation5339.6%50.0%
E27Nimzo-Indian, Saemisch variation10641.5%48.1%
E28Nimzo-Indian, Saemisch variation33030.6%52.6%
E29Nimzo-Indian, Saemisch, Capablanca variation3842.1%42.1%
E29Nimzo-Indian, Saemisch, main line14436.8%58.7%
E30Nimzo-Indian, Leningrad variation90233.8%50.5%
E30Nimzo-Indian, Leningrad, ...b5 gambit8234.1%47.6%
E31Nimzo-Indian, Leningrad, main line39832.9%49.9%
E32Nimzo-Indian, classical variation736742.4%54.0%
E32Nimzo-Indian, classical, Adorjan gambit12143.8%53.3%
E33Nimzo-Indian, classical, 4...Nc626534.3%56.8%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation43540.2%58.5%
E34Nimzo-Indian, classical, Noa variation95452.2%54.3%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed72148.7%50.4%
E36Nimzo-Indian, classical, Botvinnik variation1643.8%59.4%
E36Nimzo-Indian, classical, Noa variation, 5.a343043.5%53.6%
E36Nimzo-Indian, classical, Noa variation, main line10.0%0.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc251747.6%61.5%
E37Nimzo-Indian, classical, San Remo variation1127.3%59.1%
E38Nimzo-Indian, classical, 4...c574237.6%59.5%
E39Nimzo-Indian, classical, Pirc variation110339.8%55.2%
E40Nimzo-Indian, 4.e325831.4%57.6%
E40Nimzo-Indian, 4.e3, Taimanov variation21131.8%60.0%
E41Nimzo-Indian, 4.e3 c596443.2%54.7%
E41Nimzo-Indian, e3, Huebner variation51133.7%51.7%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)80847.0%54.3%
E43Nimzo-Indian, Fischer variation72336.7%53.2%
E44Nimzo-Indian, Fischer variation, 5.Ne267838.6%55.8%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation46339.7%54.2%
E46Nimzo-Indian, 4.e3 O-O10034.0%53.0%
E46Nimzo-Indian, Reshevsky variation109443.8%51.4%
E46Nimzo-Indian, Simagin variation18540.5%47.3%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd381945.3%52.3%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d569943.3%51.1%
E49Nimzo-Indian, 4.e3, Botvinnik system28144.8%55.5%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d526141.4%49.8%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d532249.1%50.9%
E51Nimzo-Indian, 4.e3, Ragozin variation4438.6%67.0%
E52Nimzo-Indian, 4.e3, main line with ...b663439.7%51.6%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd78450.0%51.2%
E53Nimzo-Indian, 4.e3, Keres variation12437.9%48.8%
E53Nimzo-Indian, 4.e3, main line with ...c547142.3%55.1%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc131948.2%55.6%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation3562.9%65.7%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation201048.5%55.5%
E56Nimzo-Indian, 4.e3, main line with 7...Nc646451.9%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...Bxc3156844.7%52.7%
E59Nimzo-Indian, 4.e3, main line78543.8%53.6%
E60King's Indian defence124832.1%55.2%
E60King's Indian, 3.Nf3354339.6%57.5%
E60King's Indian, 3.g3228642.1%55.6%
E60King's Indian, 3.g3, counterthrust variation1729.4%32.4%
E60King's Indian, Anti-Gruenfeld7932.9%60.8%
E60King's Indian, Danube gambit1241.7%54.2%
E60Queen's pawn, Mengarini attack3935.9%61.5%
E61King's Indian defence, 3.Nc3143035.0%55.3%
E61King's Indian, Smyslov system11634.5%52.6%
E62King's Indian, fianchetto variation9137.4%53.8%
E62King's Indian, fianchetto with ...Nc627832.4%55.8%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation60132.8%60.6%
E62King's Indian, fianchetto, Larsen system32941.0%61.6%
E62King's Indian, fianchetto, Simagin variation9733.0%62.9%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation35534.1%57.6%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation37236.8%60.1%
E63King's Indian, fianchetto, Panno variation236738.0%56.8%
E64King's Indian, fianchetto, Yugoslav system12737.0%58.7%
E65King's Indian, fianchetto, Yugoslav, 7.O-O28946.4%54.3%
E66King's Indian, fianchetto, Yugoslav Panno37133.4%57.7%
E67King's Indian, fianchetto with ...Nd712039.2%56.3%
E67King's Indian, fianchetto, classical variation59741.4%55.0%
E68King's Indian, fianchetto, classical variation, 8.e4139039.6%59.7%
E69King's Indian, fianchetto, classical main line54233.9%62.0%
E70King's Indian, 4.e4127332.5%58.6%
E70King's Indian, Kramer system48630.7%56.7%
E70King's Indian, accelerated Averbakh system18135.4%53.6%
E71King's Indian, Makagonov system (5.h3)98834.5%59.9%
E72King's Indian with e4 & g314634.9%55.8%
E72King's Indian, Pomar system5437.0%53.7%
E73King's Indian, 5.Be24429.5%60.2%
E73King's Indian, Averbakh system121334.4%55.9%
E73King's Indian, Semi-Averbakh system11037.3%58.6%
E74King's Indian, Averbakh, 6...c544936.7%57.3%
E75King's Indian, Averbakh, main line21431.8%56.5%
E76King's Indian, Four pawns attack31835.8%59.1%
E76King's Indian, Four pawns attack, dynamic line28436.3%49.5%
E77King's Indian, Four pawns attack20032.0%59.0%
E77King's Indian, Four pawns attack, 6.Be24146.3%50.0%
E77King's Indian, Four pawns attack, Florentine gambit1838.9%41.7%
E78King's Indian, Four pawns attack, with Be2 and Nf39440.4%57.4%
E79King's Indian, Four pawns attack, main line4353.5%57.0%
E80King's Indian, Saemisch variation63832.6%59.6%
E81King's Indian, Saemisch, 5...O-O259834.7%54.8%
E81King's Indian, Saemisch, Byrne variation9438.3%57.4%
E82King's Indian, Saemisch, double fianchetto variation17136.3%58.5%
E83King's Indian, Saemisch, 6...Nc614128.4%50.4%
E83King's Indian, Saemisch, Panno formation39337.4%56.6%
E83King's Indian, Saemisch, Ruban variation1729.4%50.0%
E84King's Indian, Saemisch, Panno main line65137.0%54.0%
E85King's Indian, Saemisch, orthodox variation15838.0%52.5%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c657931.3%53.8%
E87King's Indian, Saemisch, orthodox, 7.d546527.5%55.9%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
E88King's Indian, Saemisch, orthodox, 7.d5 c645033.3%57.1%
E89King's Indian, Saemisch, orthodox main line7131.0%56.3%
E90King's Indian, 5.Nf3107333.1%56.9%
E90King's Indian, Larsen variation12335.0%58.1%
E90King's Indian, Zinnowitz variation7038.6%53.6%
E91King's Indian, 6.Be271533.3%64.6%
E91King's Indian, Kazakh variation34636.7%57.1%
E92King's Indian, Andersson variation32453.1%49.4%
E92King's Indian, Gligoric-Taimanov system158734.7%58.5%
E92King's Indian, Petrosian system13428.4%52.2%
E92King's Indian, Petrosian system, Stein variation68333.4%53.9%
E92King's Indian, classical variation3729.7%47.3%
E93King's Indian, Petrosian system, main line11231.3%50.4%
E94King's Indian, orthodox variation109937.9%54.3%
E94King's Indian, orthodox, 7...Nbd798334.2%59.8%
E94King's Indian, orthodox, Donner variation25636.7%59.4%
E95King's Indian, orthodox, 7...Nbd7, 8.Re147137.8%55.4%
E96King's Indian, orthodox, 7...Nbd7, main line10138.6%58.9%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)420433.3%55.9%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack136635.8%58.2%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne194726.5%61.1%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack15321.6%61.8%
E99King's Indian, orthodox, Aronin-Taimanov, main line6731.3%61.9%

Created in 2005-2013 by CCRL team
Last games added on August 17, 2019