CCRL 40/40
Downloads and Statistics
May 18, 2019
Testing summary:
Total: 1'044'560 games
played by 2'452 programs
143157 CPU days (X2 4600+)

White wins: 363'036 (34.8%)
Black wins: 270'297 (25.9%)
Draws: 411'227 (39.4%)
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 opening47740.5%50.0%
A00Anti-Borg (Desprez) opening50.0%40.0%
A00Battambang opening2040.0%50.0%
A00Benko's opening890439.7%52.0%
A00Benko's opening, reversed Alekhine12541.6%46.4%
A00Clemenz (Mead's, Basman's or de Klerk's) opening7639.5%50.0%
A00Dunst (Sleipner, Heinrichsen) opening232435.6%49.8%
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 opening30831.5%49.2%
A00Novosibirsk opening2634.6%51.9%
A00Polish (Sokolsky) opening233838.5%48.2%
A00Polish, Outflank variation18339.9%46.7%
A00Saragossa opening43528.5%50.8%
A00Van't Kruijs opening59139.4%51.0%
A00Ware (Meadow Hay) opening2222.7%38.6%
A01Nimzovich-Larsen attack91936.0%52.3%
A01Nimzovich-Larsen attack, Dutch variation3923.1%60.3%
A01Nimzovich-Larsen attack, English variation44733.1%49.4%
A01Nimzovich-Larsen attack, Indian variation54935.7%48.5%
A01Nimzovich-Larsen attack, Polish variation425.0%62.5%
A01Nimzovich-Larsen attack, classical variation188933.1%49.3%
A01Nimzovich-Larsen attack, modern variation405438.3%50.7%
A01Nimzovich-Larsen attack, symmetrical variation82239.5%49.7%
A02Bird's opening375535.4%49.1%
A02Bird's opening, Swiss gambit250.0%75.0%
A02Bird, From gambit26333.1%53.0%
A02Bird, From gambit, Lasker variation3053.3%60.0%
A02Bird, From gambit, Lipke variation10.0%0.0%
A02Bird, Hobbs gambit560.0%70.0%
A03Bird's opening353534.4%47.7%
A03Bird's opening, Lasker variation12228.7%46.3%
A03Bird's opening, Williams gambit4932.7%55.1%
A03Mujannah opening450.0%25.0%
A04Reti opening1050336.5%54.5%
A04Reti v Dutch161031.4%57.4%
A04Reti, Herrstroem gambit20.0%100.0%
A04Reti, Lisitsin gambit deferred3423.5%70.6%
A04Reti, Pirc-Lisitsin gambit14427.8%47.9%
A04Reti, Wade defence20.0%50.0%
A05Reti opening506735.7%53.0%
A05Reti, King's Indian attack154539.3%53.2%
A05Reti, King's Indian attack, Reti-Smyslov variation13831.2%48.2%
A05Reti, King's Indian attack, Spassky's variation59739.9%52.3%
A06Reti opening90236.1%52.4%
A06Reti, Nimzovich-Larsen attack416338.9%49.7%
A06Reti, old Indian attack17629.5%47.2%
A06Santasiere's folly17638.1%46.3%
A06Tennison (Lemberg, Zukertort) gambit4240.5%51.2%
A07Reti, King's Indian attack270640.9%52.8%
A07Reti, King's Indian attack (Barcza system)647239.5%53.5%
A07Reti, King's Indian attack (with ...c5)24637.0%50.6%
A07Reti, King's Indian attack, Keres variation93635.0%54.8%
A07Reti, King's Indian attack, Pachman system15738.2%51.6%
A07Reti, King's Indian attack, Yugoslav variation189140.1%53.0%
A08Reti, King's Indian attack70240.3%52.6%
A08Reti, King's Indian attack, French variation29338.2%50.2%
A09Reti accepted44238.2%52.4%
A09Reti accepted, Keres variation6224.2%63.7%
A09Reti opening85437.4%53.9%
A09Reti, advance variation137535.7%48.6%
A10English opening392035.6%55.0%
A10English, Adorjan defence65438.7%52.7%
A10English, Anglo-Dutch defense106031.0%51.0%
A10English, Jaenisch gambit20.0%100.0%
A11English, Caro-Kann defensive system185338.6%53.3%
A12English, Bled variation2737.0%48.1%
A12English, Capablanca's variation9834.7%46.9%
A12English, Caro-Kann defensive system28433.8%51.4%
A12English, Caro-Kann defensive system, Bogolyubov variation14045.0%53.2%
A12English, London defensive system14742.9%51.4%
A12English, New York (London) defensive system6144.3%45.1%
A12English, Torre defensive system8243.9%54.9%
A13English opening273735.1%52.7%
A13English opening, Agincourt variation174538.2%54.8%
A13English, Kurajica defence15633.3%60.3%
A13English, Neo-Catalan95139.6%52.4%
A13English, Neo-Catalan accepted137545.8%55.8%
A13English, Romanishin gambit37540.5%57.1%
A13English, Wimpey system18042.8%49.7%
A14English, Neo-Catalan declined99743.2%54.5%
A14English, Symmetrical, Keres defence55947.6%57.1%
A15English opening1366042.3%53.5%
A15English, 1...Nf6 (Anglo-Indian defense)159637.7%54.9%
A16English opening169434.3%53.9%
A16English, Anglo-Gruenfeld defense34141.3%53.8%
A16English, Anglo-Gruenfeld defense, Korchnoi variation9638.5%55.7%
A16English, Anglo-Gruenfeld, Czech defense24234.7%59.1%
A16English, Anglo-Gruenfeld, Smyslov defense16732.9%57.2%
A17English opening28337.8%52.5%
A17English, Nimzo-English opening231238.0%53.7%
A17English, Queens Indian formation30836.4%60.4%
A17English, Queens Indian, Romanishin variation9130.8%54.9%
A18English, Mikenas-Carls variation29237.7%57.5%
A18English, Mikenas-Carls, Flohr variation42939.9%58.6%
A18English, Mikenas-Carls, Kevitz variation3234.4%48.4%
A19English, Mikenas-Carls, Sicilian variation63437.9%54.1%
A20English opening737237.1%53.9%
A20English, Nimzovich variation14430.6%54.9%
A20English, Nimzovich, Flohr variation19036.8%47.9%
A21English opening204131.1%55.9%
A21English, Keres variation1421.4%46.4%
A21English, Kramnik-Shirov counterattack288537.1%51.9%
A21English, Smyslov defence6021.7%62.5%
A21English, Troeger defence16526.1%54.8%
A22English opening95635.5%50.6%
A22English, Bellon gambit4727.7%58.5%
A22English, Bremen, Smyslov system186138.2%48.6%
A22English, Bremen, reverse dragon74340.2%51.5%
A22English, Carls' Bremen system56737.9%53.4%
A23English, Bremen system, Keres variation73938.4%48.8%
A24English, Bremen system with ...g621936.5%47.9%
A25English, Sicilian reversed111532.0%53.7%
A25English, closed system85234.0%54.0%
A25English, closed system (without ...d6)13629.4%55.1%
A25English, closed, 5.Rb154738.8%52.5%
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 system36636.6%53.3%
A26English, closed system39137.3%50.9%
A27English, three knights system124431.1%52.4%
A28English, Bradley Beach variation6622.7%40.2%
A28English, Nenarokov variation12239.3%50.8%
A28English, four knights system42442.2%52.7%
A28English, four knights, 4.e3125537.1%52.6%
A28English, four knights, Capablanca variation60036.3%54.0%
A28English, four knights, Marini variation104239.1%50.4%
A28English, four knights, Nimzovich variation72433.8%55.3%
A28English, four knights, Romanishin variation50550.1%52.2%
A28English, four knights, Stean variation8741.4%59.8%
A29English, four knights, kingside fianchetto682041.1%52.1%
A30English, symmetrical variation403938.3%54.3%
A30English, symmetrical, hedgehog system284546.7%55.9%
A30English, symmetrical, hedgehog, flexible formation18343.2%54.4%
A31English, symmetrical, Benoni formation130838.4%55.8%
A32English, symmetrical variation61541.0%54.8%
A33English, symmetrical variation184047.0%54.0%
A33English, symmetrical, Geller variation70239.5%53.6%
A34English, symmetrical variation140938.9%54.0%
A34English, symmetrical, Rubinstein system43337.9%53.1%
A34English, symmetrical, three knights system151843.1%54.8%
A35English, symmetrical variation36034.7%50.1%
A35English, symmetrical, four knights system247843.5%53.4%
A36English, symmetrical variation13333.8%50.8%
A36English, symmetrical, Botvinnik system18435.3%49.7%
A36English, symmetrical, Botvinnik system reversed10138.6%54.0%
A36English, ultra-symmetrical variation174037.2%52.5%
A37English, symmetrical variation121040.2%50.9%
A37English, symmetrical, Botvinnik system reversed87438.7%51.8%
A38English, symmetrical variation62743.7%54.7%
A38English, symmetrical, main line with b31100.0%50.0%
A38English, symmetrical, main line with d317843.8%54.5%
A39English, symmetrical, main line with d458139.9%56.1%
A40Beefeater defence4831.3%63.5%
A40Modern defence157435.0%57.0%
A40Polish defence11432.5%56.6%
A40Queen's pawn336333.5%54.8%
A40Queen's pawn, Charlick (Englund) gambit3243.8%59.4%
A40Queen's pawn, English defence42644.6%57.0%
A40Queen's pawn, Franco-Indian (Keres) defence175135.8%56.4%
A40Queen's pawn, Keres defence237041.6%55.9%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence29526.1%57.5%
A41Modern defence13527.4%55.9%
A41Old Indian defence130931.9%53.9%
A41Old Indian, Tartakower (Wade) variation158032.5%59.3%
A41Queen's Pawn267234.4%55.4%
A41Robatsch defence, Rossolimo variation19134.0%52.1%
A42Modern defence, Averbakh system64731.8%58.0%
A42Modern defence, Averbakh system, Kotov variation15425.3%62.0%
A42Modern defence, Averbakh system, Randspringer variation1513.3%66.7%
A42Pterodactyl defence34036.8%63.4%
A43Hawk (Habichd) defence366.7%33.3%
A43Old Benoni defence231533.0%57.0%
A43Old Benoni, Franco-Benoni defence17135.7%61.7%
A43Old Benoni, Mujannah formation8234.1%61.0%
A43Old Benoni, Schmid's system3528.6%57.1%
A43Woozle defence80.0%75.0%
A44Old Benoni defence6227.4%60.5%
A44Semi-Benoni (`blockade variation')38228.5%60.3%
A45Blackmar-Diemer gambit23827.3%51.9%
A45Canard opening1729.4%38.2%
A45Paleface attack4431.8%50.0%
A45Queen's pawn game355135.7%53.7%
A45Queen's pawn, Bronstein gambit1233.3%50.0%
A45Trompovsky attack (Ruth, Opovcensky opening)612633.6%53.2%
A46Queen's pawn game466737.8%54.5%
A46Queen's pawn, Torre attack187735.4%52.0%
A46Queen's pawn, Torre attack, Wagner gambit2330.4%50.0%
A46Queen's pawn, Yusupov-Rubinstein system101339.1%52.2%
A47Queen's Indian defence68935.8%51.3%
A47Queen's Indian, Marienbad system10538.1%54.3%
A47Queen's Indian, Marienbad system, Berg variation1952.6%57.9%
A48King's Indian, East Indian defence119238.0%52.1%
A48King's Indian, London system146936.8%53.5%
A48King's Indian, Torre attack206738.7%49.9%
A49King's Indian, fianchetto without c4151139.6%56.1%
A50Kevitz-Trajkovich defence60632.5%56.0%
A50Queen's Indian accelerated33140.5%57.1%
A50Queen's pawn game99536.3%55.6%
A51Budapest defence declined2152.4%64.3%
A51Budapest, Fajarowicz variation32237.3%57.1%
A51Budapest, Fajarowicz, Steiner variation4235.7%44.0%
A52Budapest defence5834.5%51.7%
A52Budapest, Adler variation39244.9%58.2%
A52Budapest, Alekhine variation2429.2%60.4%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
A52Budapest, Alekhine, Abonyi variation6927.5%60.1%
A52Budapest, Rubinstein variation43241.7%60.9%
A53Old Indian defence136937.2%58.5%
A53Old Indian, Janowski variation18636.0%54.6%
A54Old Indian, Dus-Khotimirsky variation2227.3%40.9%
A54Old Indian, Ukrainian variation16841.1%53.3%
A54Old Indian, Ukrainian variation, 4.Nf339134.5%55.6%
A55Old Indian, main line53636.8%58.5%
A56Benoni defence89833.2%59.9%
A56Benoni defence, Hromodka system55025.8%63.6%
A56Czech Benoni defence37126.7%66.4%
A56Czech Benoni, King's Indian system6118.0%61.5%
A56Vulture defence1100.0%50.0%
A57Benko gambit105034.1%55.5%
A57Benko gambit half accepted102337.3%57.6%
A57Benko gambit, Zaitsev system12035.0%49.2%
A58Benko gambit accepted84634.4%58.5%
A58Benko gambit, Nd2 variation1241.7%62.5%
A58Benko gambit, fianchetto variation16245.7%61.1%
A59Benko gambit4643.5%60.9%
A59Benko gambit, 7.e43844.7%51.3%
A59Benko gambit, Ne2 variation1735.3%47.1%
A59Benko gambit, main line15041.3%68.0%
A60Benoni defence25124.7%55.8%
A61Benoni defence59032.9%61.9%
A61Benoni, Nimzovich (knight's tour) variation49428.3%58.5%
A61Benoni, Uhlmann variation21221.7%40.6%
A61Benoni, fianchetto variation6132.8%62.3%
A62Benoni, fianchetto variation124234.8%56.2%
A63Benoni, fianchetto, 9...Nbd715137.1%64.9%
A64Benoni, fianchetto, 11...Re821939.7%49.1%
A65Benoni, 6.e445631.1%56.6%
A66Benoni, Mikenas variation2917.2%53.4%
A66Benoni, pawn storm variation540.0%60.0%
A67Benoni, Taimanov variation29928.1%62.2%
A68Benoni, four pawns attack10332.0%59.7%
A69Benoni, four pawns attack, main line12039.2%52.1%
A70Benoni, classical with e4 and Nf366639.5%58.8%
A70Benoni, classical without 9.O-O1612.5%50.0%
A71Benoni, classical, 8.Bg514032.9%54.3%
A72Benoni, classical without 9.O-O7847.4%63.5%
A73Benoni, classical, 9.O-O11432.5%57.5%
A74Benoni, classical, 9...a6, 10.a43438.2%69.1%
A75Benoni, classical with ...a6 and 10...Bg412931.8%62.4%
A76Benoni, classical, 9...Re817940.8%62.8%
A77Benoni, classical, 9...Re8, 10.Nd220633.0%63.6%
A78Benoni, classical with ...Re8 and ...Na612131.4%60.3%
A79Benoni, classical, 11.f39732.0%60.3%
A80Dutch316033.6%54.5%
A80Dutch, 2.Bg5 variation152431.4%54.4%
A80Dutch, Korchnoi attack6026.7%50.0%
A80Dutch, Krejcik gambit31732.8%53.9%
A80Dutch, Manhattan (Alapin, Ulvestad) variation4723.4%52.1%
A80Dutch, Spielmann gambit20.0%50.0%
A81Dutch defence411837.5%56.3%
A81Dutch defence, Blackburne variation7630.3%53.3%
A81Dutch, Leningrad, Basman system862.5%68.8%
A81Dutch, Leningrad, Karlsbad variation1250.0%50.0%
A82Dutch, Balogh defence2240.9%65.9%
A82Dutch, Staunton gambit19832.8%43.2%
A82Dutch, Staunton gambit, Tartakower variation1625.0%56.3%
A83Dutch, Staunton gambit, Alekhine variation333.3%50.0%
A83Dutch, Staunton gambit, Chigorin variation9128.6%52.7%
A83Dutch, Staunton gambit, Lasker variation2737.0%55.6%
A83Dutch, Staunton gambit, Nimzovich variation450.0%25.0%
A83Dutch, Staunton gambit, Staunton's line22537.8%49.1%
A84Dutch defence79836.6%56.6%
A84Dutch defence, Rubinstein variation44531.7%57.4%
A84Dutch, Staunton gambit deferred1145.5%31.8%
A85Dutch with c4 & Nc389932.8%54.2%
A86Dutch with c4 & g316435.4%61.0%
A86Dutch, Hort-Antoshin system1040.0%60.0%
A86Dutch, Leningrad variation26536.2%58.5%
A87Dutch, Leningrad, main variation50139.9%54.5%
A88Dutch, Leningrad, main variation with c6104139.5%58.7%
A89Dutch, Leningrad, main variation with Nc650234.3%62.7%
A90Dutch defence122337.6%60.4%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation28236.5%60.5%
A90Dutch-Indian, Alekhine variation8132.1%56.8%
A91Dutch defence19532.3%51.5%
A92Dutch defence12239.3%61.5%
A92Dutch defence, Alekhine variation5141.2%59.8%
A92Dutch, stonewall variation13141.2%60.3%
A92Dutch, stonewall with Nc33240.6%48.4%
A93Dutch, stonewall, Botwinnik variation23537.4%60.0%
A94Dutch, stonewall with Ba310940.4%57.8%
A95Dutch, stonewall with Nc328832.3%58.5%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
A96Dutch, classical variation43934.4%58.7%
A97Dutch, Ilyin-Genevsky variation13537.8%53.7%
A97Dutch, Ilyin-Genevsky, Winter variation15635.3%63.8%
A98Dutch, Ilyin-Genevsky variation with Qc216024.4%58.4%
A99Dutch, Ilyin-Genevsky variation with b331335.8%60.7%
B00Barnes defence333.3%83.3%
B00Carr's defence450.0%50.0%
B00Corn stalk defence450.0%50.0%
B00Fred80.0%75.0%
B00KP, Colorado counter825.0%75.0%
B00KP, Nimzovich defence94531.5%58.3%
B00KP, Nimzovich defence, Bogolyubov variation14029.3%59.6%
B00KP, Nimzovich defence, Marshall gambit40.0%25.0%
B00King's pawn opening238533.3%56.4%
B00Lemming defence1233.3%58.3%
B00Owen defence42931.5%60.5%
B00Reversed Grob (Borg/Basman defence/macho Grob)4219.0%69.0%
B00St. George (Baker) defence4632.6%59.8%
B01Scandinavian (centre counter) defence328039.1%57.3%
B01Scandinavian defence137438.3%58.8%
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 gambit6645.5%56.1%
B01Scandinavian, Kiel variation728.6%85.7%
B01Scandinavian, Marshall variation66943.8%59.0%
B01Scandinavian, Mieses-Kotrvc gambit1353.8%50.0%
B01Scandinavian, Pytel-Wade variation311043.3%58.0%
B01Scandinavian, Richter variation1020.0%70.0%
B02Alekhine's defence74733.9%54.1%
B02Alekhine's defence, Brooklyn defence714.3%35.7%
B02Alekhine's defence, Kmoch variation1118.2%27.3%
B02Alekhine's defence, Krejcik variation1637.5%43.8%
B02Alekhine's defence, Maroczy variation14334.3%58.4%
B02Alekhine's defence, Saemisch attack42234.4%48.7%
B02Alekhine's defence, Scandinavian variation45537.1%54.6%
B02Alekhine's defence, Spielmann variation2222.7%47.7%
B02Alekhine's defence, Steiner variation1936.8%50.0%
B02Alekhine's defence, Two pawns' (Lasker's) attack38040.0%53.2%
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 variation4434.1%55.7%
B03Alekhine's defence, exchange variation77539.2%58.5%
B03Alekhine's defence, exchange, Karpov variation1163.6%50.0%
B03Alekhine's defence, four pawns attack26230.5%65.3%
B03Alekhine's defence, four pawns attack, 6...Nc62035.0%42.5%
B03Alekhine's defence, four pawns attack, 7.Be314336.4%69.9%
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 variation12631.7%60.3%
B04Alekhine's defence, modern variation29534.9%61.2%
B04Alekhine's defence, modern, Keres variation6532.3%70.0%
B04Alekhine's defence, modern, Larsen variation98041.9%59.4%
B04Alekhine's defence, modern, Schmid variation16238.9%59.6%
B04Alekhine's defence, modern, fianchetto variation81836.7%57.0%
B05Alekhine's defence, modern variation, 4...Bg473431.9%64.4%
B05Alekhine's defence, modern, Alekhine variation837.5%43.8%
B05Alekhine's defence, modern, Flohr variation17938.0%60.3%
B05Alekhine's defence, modern, Panov variation2540.0%48.0%
B05Alekhine's defence, modern, Vitolins attack2842.9%50.0%
B06Norwegian defence475.0%37.5%
B06Robatsch (modern) defence798935.0%56.1%
B06Robatsch defence98134.3%58.4%
B06Robatsch defence, Gurgenidze variation8333.7%62.7%
B06Robatsch defence, Pseudo-Austrian attack58335.2%55.0%
B06Robatsch defence, Two knights variation38232.2%60.3%
B06Robatsch defence, Two knights, Suttles variation108437.7%58.0%
B06Robatsch defence, three pawns attack18927.5%59.8%
B07Pirc defence228636.0%55.7%
B07Pirc, 150 attack29238.0%62.2%
B07Pirc, Byrne variation50832.1%57.0%
B07Pirc, Chinese variation650.0%41.7%
B07Pirc, Holmov system6440.6%56.3%
B07Pirc, Sveshnikov system36035.6%53.3%
B07Pirc, Ufimtsev-Pytel variation61733.1%57.9%
B07Pirc, bayonet (Mariotti) attack4143.9%58.5%
B07Robatsch defence, Geller's system69236.8%57.2%
B08Pirc, classical (two knights) system79036.7%58.2%
B08Pirc, classical system, 5.Be2271137.7%58.0%
B08Pirc, classical, h3 system49137.1%59.1%
B09Pirc, Austrian attack21638.9%61.1%
B09Pirc, Austrian attack, 6.Bd3133739.8%60.1%
B09Pirc, Austrian attack, 6.Be338231.9%57.1%
B09Pirc, Austrian attack, 6.e511540.9%56.1%
B09Pirc, Austrian attack, Ljubojevic variation3030.0%48.3%
B09Pirc, Austrian attack, dragon formation82938.6%58.0%
B10Caro-Kann defence277833.9%52.7%
B10Caro-Kann, Goldman (Spielmann) variation14235.9%51.1%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B10Caro-Kann, Two knights variation64135.3%57.4%
B10Caro-Kann, anti-Caro-Kann defence75331.7%60.5%
B10Caro-Kann, anti-anti-Caro-Kann defence152147.2%52.1%
B10Caro-Kann, closed (Breyer) variation122036.9%52.4%
B11Caro-Kann, Two knights, 3...Bg4121739.0%54.8%
B12Caro-Kann defence35931.8%57.7%
B12Caro-Kann, 3.Nd222634.1%59.5%
B12Caro-Kann, Edinburgh variation7339.7%56.8%
B12Caro-Kann, Tartakower (fantasy) variation89736.2%55.8%
B12Caro-Kann, advance variation1222337.9%56.3%
B12Caro-Kann, advance, Short variation6227.4%60.5%
B12Caro-Masi defence1100.0%50.0%
B12de Bruycker defence238.7%56.5%
B13Caro-Kann, Panov-Botvinnik attack121246.7%53.0%
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 variation12548.8%57.2%
B13Caro-Kann, exchange variation115038.6%52.0%
B13Caro-Kann, exchange, Rubinstein variation17337.0%53.8%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6204846.4%55.5%
B14Caro-Kann, Panov-Botvinnik attack, 5...g637150.9%52.2%
B15Caro-Kann defence30230.1%54.8%
B15Caro-Kann, Alekhine gambit3135.5%46.8%
B15Caro-Kann, Forgacs variation26141.8%56.1%
B15Caro-Kann, Gurgenidze counter-attack850.0%62.5%
B15Caro-Kann, Gurgenidze system43836.3%57.0%
B15Caro-Kann, Rasa-Studier gambit1513.3%26.7%
B15Caro-Kann, Tartakower (Nimzovich) variation41740.5%55.8%
B16Caro-Kann, Bronstein-Larsen variation55831.4%61.0%
B17Caro-Kann, Steinitz variation410943.0%53.3%
B18Caro-Kann, classical variation180744.7%54.9%
B18Caro-Kann, classical, 6.h465441.9%55.2%
B18Caro-Kann, classical, Flohr variation11450.9%51.8%
B18Caro-Kann, classical, Maroczy attack1216.7%41.7%
B19Caro-Kann, classical, 7...Nd739049.7%52.6%
B19Caro-Kann, classical, Spassky variation276740.2%56.4%
B20Sicilian defence325133.4%50.2%
B20Sicilian, Gloria variation1421.4%46.4%
B20Sicilian, Keres variation (2.Ne2)92637.1%52.8%
B20Sicilian, Steinitz variation58237.6%50.9%
B20Sicilian, wing gambit8836.4%45.5%
B20Sicilian, wing gambit, Carlsbad variation3246.9%51.6%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
B20Sicilian, wing gambit, Marshall variation8829.5%54.5%
B21Sicilian, Andreaschek gambit1747.1%52.9%
B21Sicilian, Grand Prix attack188133.5%52.2%
B21Sicilian, Smith-Morra gambit97840.3%48.0%
B22Sicilian, 2.c3, Heidenfeld variation6225.8%45.2%
B22Sicilian, Alapin's variation (2.c3)745042.4%54.5%
B23Sicilian, Grand Prix attack92136.7%49.6%
B23Sicilian, Grand Prix attack, Schofman variation15841.1%52.2%
B23Sicilian, chameleon variation82033.7%57.1%
B23Sicilian, closed433135.8%51.8%
B23Sicilian, closed, 2...Nc6232138.6%52.9%
B23Sicilian, closed, Korchnoi variation22247.7%50.9%
B24Sicilian, closed56635.0%50.7%
B24Sicilian, closed, Smyslov variation2528.0%58.0%
B25Sicilian, closed36236.2%49.6%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)6934.8%52.2%
B25Sicilian, closed, 6.f449238.8%50.5%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)3743.2%59.5%
B26Sicilian, closed, 6.Be374632.4%50.0%
B27Sicilian defence4734.0%61.7%
B27Sicilian, Acton extension425.0%87.5%
B27Sicilian, Hungarian variation377639.5%57.8%
B27Sicilian, Katalimov variation18840.4%59.0%
B27Sicilian, Quinteros variation6636.4%63.6%
B27Sicilian, Stiletto (Althouse) variation250.0%25.0%
B28Sicilian, O'Kelly variation84334.8%57.6%
B29Sicilian, Nimzovich-Rubinstein variation112239.6%58.0%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit4852.1%53.1%
B30Sicilian defence343139.2%54.3%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)564737.4%56.5%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)359740.0%56.0%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation4148.8%51.2%
B32Sicilian defence102738.7%55.6%
B32Sicilian, Flohr variation29735.0%59.6%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation140940.0%56.4%
B32Sicilian, Labourdonnais-Loewenthal variation28839.6%59.0%
B32Sicilian, Nimzovich variation3339.4%53.0%
B33Sicilian defence52937.8%54.3%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation115835.4%54.8%
B33Sicilian, Pelikan, Bird variation24137.8%63.3%
B33Sicilian, Pelikan, Chelyabinsk variation223636.3%57.1%
B33Sicilian, Sveshnikov variation149438.8%51.0%
B34Sicilian, accelerated fianchetto, exchange variation3638.9%50.0%
B34Sicilian, accelerated fianchetto, modern variation47837.0%52.2%
B35Sicilian, accelerated fianchetto, modern variation with Bc4217443.0%53.5%
B36Sicilian, accelerated fianchetto, Gurgenidze variation30746.9%60.6%
B36Sicilian, accelerated fianchetto, Maroczy bind106145.1%57.8%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg721043.3%56.0%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3114243.3%57.4%
B39Sicilian, accelerated fianchetto, Breyer variation67541.3%58.0%
B40Sicilian defence698737.3%54.0%
B40Sicilian, Anderssen variation90640.5%57.2%
B40Sicilian, Marshall variation20.0%100.0%
B40Sicilian, Pin variation (Sicilian counter-attack)3432.4%66.2%
B40Sicilian, Pin, Jaffe variation40.0%100.0%
B40Sicilian, Pin, Koch variation5726.3%79.8%
B41Sicilian, Kan variation25042.8%55.4%
B41Sicilian, Kan, Maroczy bind (Reti variation)57834.6%59.3%
B41Sicilian, Kan, Maroczy bind - Bronstein variation2532.0%32.0%
B42Sicilian, Kan, 5.Bd3222638.3%57.8%
B42Sicilian, Kan, Gipslis variation8038.8%63.1%
B42Sicilian, Kan, Polugaievsky variation163037.2%54.4%
B42Sicilian, Kan, Swiss cheese variation30733.9%60.9%
B43Sicilian, Kan, 5.Nc3351538.9%56.1%
B44Sicilian defence38042.6%52.1%
B44Sicilian, Szen (`anti-Taimanov') variation92640.9%53.3%
B44Sicilian, Szen variation, Dely-Kasparov gambit2556.0%60.0%
B44Sicilian, Szen, hedgehog variation23640.7%50.8%
B45Sicilian, Taimanov variation218638.1%56.7%
B45Sicilian, Taimanov, American attack1942.1%42.1%
B46Sicilian, Taimanov variation345338.3%55.5%
B47Sicilian, Taimanov (Bastrikov) variation418241.6%54.2%
B48Sicilian, Taimanov variation369637.0%56.2%
B49Sicilian, Taimanov variation71944.9%57.5%
B50Sicilian553138.7%52.7%
B50Sicilian, wing gambit deferred3129.0%43.5%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack218337.3%54.9%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7214840.6%50.9%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit20440.2%57.8%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation96543.7%55.1%
B53Sicilian, Chekhover variation172640.7%52.0%
B53Sicilian, Chekhover, Zaitsev variation9431.9%57.4%
B54Sicilian113935.6%54.7%
B54Sicilian, Prins (Moscow) variation65238.0%56.6%
B55Sicilian, Prins variation, Venice attack9139.6%51.6%
B56Sicilian194538.8%53.4%
B56Sicilian, Venice attack7335.6%61.6%
B57Sicilian, Magnus Smith trap1145.5%40.9%
B57Sicilian, Sozin, Benko variation135739.1%51.7%
B57Sicilian, Sozin, not Scheveningen28741.1%55.4%
B58Sicilian, Boleslavsky variation45836.5%48.1%
B58Sicilian, Boleslavsky, Louma variation5236.5%56.7%
B58Sicilian, classical23843.3%48.5%
B59Sicilian, Boleslavsky variation, 7.Nb317245.3%52.9%
B60Sicilian, Richter-Rauzer81935.7%58.9%
B60Sicilian, Richter-Rauzer, Bondarevsky variation3951.3%64.1%
B60Sicilian, Richter-Rauzer, Larsen variation17230.8%59.6%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd259635.7%61.2%
B62Sicilian, Richter-Rauzer, 6...e65040.0%60.0%
B62Sicilian, Richter-Rauzer, Keres variation10429.8%48.6%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation8640.7%50.6%
B62Sicilian, Richter-Rauzer, Podvebrady variation2050.0%35.0%
B62Sicilian, Richter-Rauzer, Richter attack10.0%100.0%
B63Sicilian, Richter-Rauzer, Rauzer attack15937.1%57.5%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7119637.8%56.1%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f434238.3%57.5%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd461641.1%55.6%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6582433.7%51.5%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7299633.7%55.5%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be714732.0%56.1%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf612927.9%59.7%
B70Sicilian, dragon variation85541.9%52.2%
B71Sicilian, dragon, Levenfish variation34535.7%52.9%
B71Sicilian, dragon, Levenfish; Flohr variation3641.7%56.9%
B72Sicilian, dragon, 6.Be319931.2%51.3%
B72Sicilian, dragon, classical attack11237.5%52.7%
B72Sicilian, dragon, classical, Amsterdam variation4825.0%47.9%
B72Sicilian, dragon, classical, Grigoriev variation4544.4%48.9%
B72Sicilian, dragon, classical, Nottingham variation4544.4%55.6%
B73Sicilian, dragon, classical, 8.O-O40344.9%52.5%
B73Sicilian, dragon, classical, Richter variation15348.4%58.2%
B73Sicilian, dragon, classical, Zollner gambit944.4%44.4%
B74Sicilian, dragon, classical, 9.Nb345550.3%48.9%
B74Sicilian, dragon, classical, Alekhine variation2850.0%64.3%
B74Sicilian, dragon, classical, Reti-Tartakower variation9645.8%55.2%
B74Sicilian, dragon, classical, Spielmann variation1030.0%55.0%
B75Sicilian, dragon, Yugoslav attack43832.4%55.7%
B76Sicilian, dragon, Yugoslav attack, 7...O-O34835.1%53.2%
B76Sicilian, dragon, Yugoslav attack, Rauser variation99533.7%63.8%
B77Sicilian, dragon, Yugoslav attack, 9...Bd725439.0%56.1%
B77Sicilian, dragon, Yugoslav attack, 9.Bc412635.7%52.8%
B77Sicilian, dragon, Yugoslav attack, Byrne variation1442.9%64.3%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O48528.5%56.1%
B79Sicilian, dragon, Yugoslav attack, 12.h41428.6%64.3%
B80Sicilian, Scheveningen variation134631.6%54.0%
B80Sicilian, Scheveningen, English variation16933.1%54.4%
B80Sicilian, Scheveningen, Vitolins variation5644.6%50.9%
B80Sicilian, Scheveningen, fianchetto variation22031.8%52.3%
B81Sicilian, Scheveningen, Keres attack237534.6%60.0%
B82Sicilian, Scheveningen, 6.f458035.0%56.6%
B82Sicilian, Scheveningen, Tal variation12634.9%62.7%
B83Sicilian, Scheveningen, 6.Be257340.8%53.1%
B83Sicilian, modern Scheveningen48142.6%49.8%
B83Sicilian, modern Scheveningen, main line54344.6%53.0%
B83Sicilian, modern Scheveningen, main line with Nb39936.4%54.5%
B84Sicilian, Scheveningen (Paulsen), classical variation386738.9%52.1%
B84Sicilian, Scheveningen, classical, Nd7 system9933.3%49.0%
B85Sicilian, Scheveningen, classical14339.9%50.0%
B85Sicilian, Scheveningen, classical main line37746.4%55.8%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
B85Sicilian, Scheveningen, classical, Maroczy system2634.6%55.8%
B86Sicilian, Sozin attack25442.1%53.3%
B87Sicilian, Sozin with ...a6 and ...b582336.9%50.4%
B88Sicilian, Sozin, Fischer variation1650.0%50.0%
B88Sicilian, Sozin, Leonhardt variation64439.4%55.6%
B89Sicilian, Sozin, 7.Be3109037.8%50.8%
B89Sicilian, Velimirovic attack81634.3%52.0%
B90Sicilian, Najdorf328636.7%53.6%
B90Sicilian, Najdorf, Adams attack146938.7%53.0%
B90Sicilian, Najdorf, Byrne (English) attack2104735.6%53.2%
B90Sicilian, Najdorf, Lipnitzky attack118436.0%50.6%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation92939.9%53.7%
B92Sicilian, Najdorf, Opovcensky variation553640.3%53.4%
B93Sicilian, Najdorf, 6.f4175839.5%51.0%
B94Sicilian, Najdorf, 6.Bg595135.3%52.8%
B95Sicilian, Najdorf, 6...e6124138.7%50.0%
B96Sicilian, Najdorf, 7.f4159936.5%51.9%
B96Sicilian, Najdorf, Polugayevsky variation10538.1%54.3%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3522.9%54.3%
B97Sicilian, Najdorf, 7...Qb6176733.8%46.7%
B97Sicilian, Najdorf, Poisoned pawn variation117644.8%49.4%
B98Sicilian, Najdorf variation33429.9%57.2%
B98Sicilian, Najdorf, 7...Be713133.6%55.0%
B98Sicilian, Najdorf, Browne variation4427.3%61.4%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2250.0%47.7%
B99Sicilian, Najdorf, 7...Be7 main line64829.6%53.4%
C00French defence93930.1%56.1%
C00French defence, Steiner variation90341.9%51.6%
C00French, Alapin variation1428.6%64.3%
C00French, Chigorin variation120231.0%49.9%
C00French, King's Indian attack273336.1%51.3%
C00French, Labourdonnais variation28429.6%44.4%
C00French, Pelikan variation7439.2%52.0%
C00French, Reti (Spielmann) variation23436.3%51.1%
C00French, Reversed Philidor formation1330.8%61.5%
C00French, Schlechter variation21638.4%51.6%
C00French, Steinitz attack1926.3%39.5%
C00French, Two knights variation34135.2%52.5%
C00French, Wing gambit5440.7%59.3%
C00Lengfellner system2114.3%64.3%
C00St. George defence18644.6%58.9%
C01French, exchange variation185443.3%53.6%
C01French, exchange, Bogolyubov variation837.5%43.8%
C01French, exchange, Svenonius variation8537.6%51.8%
C02French, advance variation151131.4%56.3%
C02French, advance, Euwe variation153535.8%55.1%
C02French, advance, Milner-Barry gambit11634.5%48.3%
C02French, advance, Nimzovich system13530.4%48.5%
C02French, advance, Nimzovich variation1233.3%41.7%
C02French, advance, Paulsen attack193933.6%54.5%
C02French, advance, Steinitz variation50434.9%56.5%
C02French, advance, Wade variation38938.8%57.5%
C03French, Tarrasch285742.8%57.0%
C03French, Tarrasch, Guimard variation12629.4%62.3%
C03French, Tarrasch, Haberditz variation20.0%100.0%
C04French, Tarrasch, Guimard main line48929.4%59.5%
C05French, Tarrasch, Botvinnik variation8636.0%64.5%
C05French, Tarrasch, closed variation138131.1%60.3%
C06French, Tarrasch, Leningrad variation1921.1%84.2%
C06French, Tarrasch, closed variation, main line106237.8%59.6%
C07French, Tarrasch, Eliskases variation14546.9%54.5%
C07French, Tarrasch, open variation407447.0%53.8%
C08French, Tarrasch, open, 4.ed ed147049.8%54.6%
C09French, Tarrasch, open variation, main line117749.7%56.8%
C10French, Fort Knox variation67939.6%57.2%
C10French, Frere (Becker) variation3040.0%63.3%
C10French, Marshall variation250.0%25.0%
C10French, Paulsen variation100430.2%59.9%
C10French, Rubinstein variation269948.2%55.9%
C10French, Rubinstein, Capablanca line862.5%56.3%
C11French defence21138.9%55.9%
C11French, Burn variation549344.4%52.8%
C11French, Henneberger variation1533.3%50.0%
C11French, Steinitz variation114337.9%54.6%
C11French, Steinitz, Boleslavsky variation386735.8%57.0%
C11French, Steinitz, Bradford attack1100.0%50.0%
C11French, Steinitz, Gledhill attack12633.3%54.0%
C11French, Swiss variation6045.0%54.2%
C12French, MacCutcheon variation15841.1%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) variation12540.0%59.2%
C12French, MacCutcheon, Duras variation425.0%62.5%
C12French, MacCutcheon, Grigoriev variation2853.6%55.4%
C12French, MacCutcheon, Janowski variation14737.4%57.5%
C12French, MacCutcheon, Lasker variation22227.0%59.9%
C12French, MacCutcheon, Lasker variation, 8...g641236.2%59.1%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
C12French, MacCutcheon, advance variation1526.7%20.0%
C13French, Albin-Alekhine-Chatard attack34430.8%54.9%
C13French, Albin-Alekhine-Chatard attack, Breyer variation9438.3%63.8%
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 variation1827.8%41.7%
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 variation10748.6%55.1%
C14French, classical, Pollock variation1233.3%50.0%
C14French, classical, Rubinstein variation4337.2%60.5%
C14French, classical, Stahlberg variation650.0%58.3%
C14French, classical, Steinitz variation83335.7%58.5%
C14French, classical, Tarrasch variation1414.3%50.0%
C15French, Winawer (Nimzovich) variation106839.3%55.3%
C15French, Winawer, Alekhine (Maroczy) gambit26336.1%57.6%
C15French, Winawer, Alekhine gambit1233.3%58.3%
C15French, Winawer, Alekhine gambit, Kan variation5742.1%49.1%
C15French, Winawer, Kondratiyev variation633.3%66.7%
C15French, Winawer, fingerslip variation5234.6%44.2%
C16French, Winawer, Petrosian variation26631.2%55.5%
C16French, Winawer, advance variation104832.0%56.6%
C17French, Winawer, advance variation9141.8%59.3%
C17French, Winawer, advance, 5.a346433.8%63.3%
C17French, Winawer, advance, Bogolyubov variation40337.7%51.6%
C17French, Winawer, advance, Rauzer variation2035.0%62.5%
C17French, Winawer, advance, Russian variation6538.5%53.1%
C18French, Winawer, advance variation56027.0%62.8%
C18French, Winawer, classical variation39033.6%58.8%
C19French, Winawer, advance, 6...Ne743935.3%60.5%
C19French, Winawer, advance, Smyslov variation17729.4%61.0%
C19French, Winawer, advance, poisoned pawn variation278333.9%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 line112030.6%58.0%
C20Alapin's opening4831.3%59.4%
C20KP, Indian opening11635.3%46.1%
C20KP, King's head opening250.0%25.0%
C20KP, Lopez opening1643.8%34.4%
C20KP, Mengarini's opening2240.9%29.5%
C20KP, Napoleon's opening837.5%43.8%
C20KP, Patzer opening11225.9%41.5%
C20King's pawn game9431.9%52.1%
C21Centre game31537.5%55.9%
C21Danish gambit25335.2%48.8%
C21Danish gambit, Collijn defence560.0%50.0%
C21Danish gambit, Schlechter defence1315.4%46.2%
C21Danish gambit, Soerensen defence19140.3%52.1%
C21Halasz gambit2030.0%45.0%
C22Centre game45136.6%45.8%
C22Centre game, Berger variation41638.2%53.5%
C22Centre game, Charousek variation862.5%56.3%
C22Centre game, Hall variation2540.0%40.0%
C22Centre game, Paulsen attack37335.9%52.5%
C22Centre game, l'Hermet variation60.0%50.0%
C23Bishop's opening32232.9%53.1%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C23Bishop's opening, Classical variation10041.0%53.5%
C23Bishop's opening, Lewis gambit20.0%50.0%
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-attack20350.2%50.7%
C23Bishop's opening, Philidor variation944.4%55.6%
C23Bishop's opening, Wing gambit650.0%41.7%
C24Bishop's opening, Berlin defence159738.8%53.2%
C24Bishop's opening, Ponziani gambit2030.0%30.0%
C24Bishop's opening, Urusov gambit9936.4%36.4%
C25Vienna gambit15634.0%54.8%
C25Vienna game39935.1%57.6%
C25Vienna game, Max Lange defence3748.6%48.6%
C25Vienna, Paulsen variation18231.9%57.1%
C25Vienna, Pierce gambit2330.4%50.0%
C25Vienna, Steinitz gambit250.0%25.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation10.0%100.0%
C26Vienna game40942.1%53.3%
C26Vienna, Falkbeer variation10634.9%56.1%
C26Vienna, Mengarini variation2365.2%50.0%
C26Vienna, Paulsen-Mieses variation75839.4%52.3%
C27Boden-Kieseritsky gambit4334.9%33.7%
C27Boden-Kieseritsky gambit, Lichtenhein defence1931.6%47.4%
C27Vienna game19240.6%53.1%
C27Vienna, Alekhine variation3036.7%48.3%
C27Vienna, `Frankenstein-Dracula' variation156.7%76.7%
C28Vienna game57441.3%52.5%
C29Vienna gambit54234.1%49.9%
C29Vienna gambit, Bardeleben variation1526.7%53.3%
C29Vienna gambit, Breyer variation16829.8%52.4%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C29Vienna gambit, Paulsen attack3946.2%56.4%
C29Vienna gambit, Steinitz variation2240.9%43.2%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C30KGD, 2...Nf66229.0%62.9%
C30KGD, Keene's defence8031.3%61.9%
C30KGD, Mafia defence837.5%68.8%
C30KGD, Norwalde variation2213.6%79.5%
C30KGD, classical counter-gambit742.9%50.0%
C30KGD, classical variation23629.7%53.8%
C30KGD, classical, 4.c318931.7%58.2%
C30KGD, classical, Hanham variation250.0%75.0%
C30KGD, classical, Heath variation1136.4%54.5%
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 gambit27835.3%57.6%
C31KGD, Falkbeer counter-gambit26331.9%52.9%
C31KGD, Falkbeer, 3...e43441.2%50.0%
C31KGD, Falkbeer, 4.d34847.9%65.6%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C31KGD, Falkbeer, Morphy gambit1520.0%36.7%
C31KGD, Falkbeer, Nimzovich variation1540.0%53.3%
C31KGD, Falkbeer, Rubinstein variation2512.0%58.0%
C31KGD, Falkbeer, Tartakower variation5856.9%49.1%
C31KGD, Nimzovich counter-gambit24935.3%53.0%
C32KGD, Falkbeer, 5.de5234.6%50.0%
C32KGD, Falkbeer, Charousek gambit683.3%58.3%
C32KGD, Falkbeer, Keres variation2733.3%50.0%
C32KGD, Falkbeer, Reti variation1435.7%46.4%
C32KGD, Falkbeer, main line, 7...Bf5714.3%92.9%
C33KGA, Breyer gambit333.3%50.0%
C33KGA, Carrera (Basman) gambit633.3%50.0%
C33KGA, Keres (Mason-Steinitz) gambit5141.2%46.1%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit714.3%64.3%
C33KGA, Villemson (Steinitz) gambit1225.0%45.8%
C33KGA, bishop's gambit31434.7%49.2%
C33KGA, bishop's gambit, Anderssen variation633.3%50.0%
C33KGA, bishop's gambit, Bledow variation16027.5%41.9%
C33KGA, bishop's gambit, Boden defence850.0%50.0%
C33KGA, bishop's gambit, Bogolyubov variation7037.1%50.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence3327.3%34.8%
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, Morphy variation5527.3%57.3%
C33KGA, bishop's gambit, Paulsen attack1643.8%53.1%
C33KGA, bishop's gambit, Ruy Lopez defence3447.1%55.9%
C33KGA, bishop's gambit, Steinitz defence9727.8%49.0%
C33KGA, bishop's gambit, classical defence50.0%40.0%
C33King's gambit accepted333.3%16.7%
C34KGA, Becker defence8530.6%50.6%
C34KGA, Bonsch-Osmolovsky variation17627.3%54.5%
C34KGA, Fischer defence25730.4%47.1%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C34KGA, Schallop defence19228.1%53.1%
C34King's knight's gambit3828.9%48.7%
C35KGA, Cunningham defence24528.2%50.8%
C35KGA, Cunningham, Euwe defence11021.8%48.2%
C36KGA, Abbazia defence (classical defence, modern defence[!])10643.4%60.4%
C36KGA, Abbazia defence, modern variation65838.6%47.1%
C37KGA, Blachly gambit3234.4%32.8%
C37KGA, Cochrane gambit425.0%37.5%
C37KGA, King's knight's gambit3357.6%53.0%
C37KGA, Muzio gambit944.4%33.3%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C37KGA, Quaade gambit3333.3%37.9%
C37KGA, Rosentreter gambit2630.8%34.6%
C37KGA, Salvio gambit922.2%55.6%
C37KGA, Salvio gambit, Anderssen counter-attack50.0%60.0%
C37KGA, Silberschmidt gambit333.3%50.0%
C38KGA, Hanstein gambit1225.0%62.5%
C38KGA, Philidor gambit2420.8%35.4%
C38KGA, Philidor gambit, Schultz variation1060.0%30.0%
C38King's knight's gambit4936.7%22.4%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C39KGA, Kieseritsky, Berlin defence7136.6%46.5%
C39KGA, Kieseritsky, Berlin defence, 6.Bc45832.8%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 defence12443.5%47.6%
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) defence1040.0%40.0%
C39King's knight's gambit1020.0%50.0%
C40Greco defence1225.0%45.8%
C40Gunderam defence11128.8%66.7%
C40King's knight opening20.0%50.0%
C40Latvian counter-gambit27731.0%54.5%
C40Latvian gambit, 3.Bc41560.0%56.7%
C40Latvian, Fraser defence4139.0%56.1%
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 defence45534.3%59.6%
C41Philidor, Boden variation850.0%50.0%
C41Philidor, Hanham variation5133.3%59.8%
C41Philidor, Hanham, Delmar variation1030.0%45.0%
C41Philidor, Hanham, Krause variation1850.0%47.2%
C41Philidor, Hanham, Schlechter variation3551.4%65.7%
C41Philidor, Hanham, Steiner variation2339.1%67.4%
C41Philidor, Improved Hanham variation122937.6%57.7%
C41Philidor, Larsen variation6224.2%65.3%
C41Philidor, Lopez counter-gambit30.0%66.7%
C41Philidor, Nimzovich (Jaenisch) variation2536.0%46.0%
C41Philidor, Nimzovich variation6442.2%58.6%
C41Philidor, Nimzovich, Klein variation1353.8%57.7%
C41Philidor, Nimzovich, Larobok variation6746.3%36.6%
C41Philidor, Nimzovich, Locock variation450.0%50.0%
C41Philidor, Nimzovich, Rellstab variation4037.5%68.8%
C41Philidor, Nimzovich, Sokolsky variation862.5%68.8%
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 variation96636.7%58.7%
C42Petrov three knights game36038.3%58.1%
C42Petrov's defence37040.3%52.6%
C42Petrov, Cochrane gambit7719.5%35.7%
C42Petrov, Cozio (Lasker) attack53749.3%52.8%
C42Petrov, Damiano variation2842.9%53.6%
C42Petrov, French attack966.7%66.7%
C42Petrov, Italian variation6527.7%49.2%
C42Petrov, Kaufmann attack27846.0%52.2%
C42Petrov, Nimzovich attack136644.6%55.3%
C42Petrov, Paulsen attack20342.4%50.7%
C42Petrov, classical attack95947.8%57.1%
C42Petrov, classical attack, Berger variation1566.7%53.3%
C42Petrov, classical attack, Chigorin variation62041.0%57.1%
C42Petrov, classical attack, Jaenisch variation175346.0%58.4%
C42Petrov, classical attack, Krause variation944.4%33.3%
C42Petrov, classical attack, Marshall variation110544.1%57.6%
C42Petrov, classical attack, Mason variation13344.4%56.8%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C42Petrov, classical attack, close variation18241.8%59.3%
C43Petrov, Urusov gambit1216.7%66.7%
C43Petrov, modern (Steinitz) attack5246.2%55.8%
C43Petrov, modern attack, Bardeleben variation616.7%58.3%
C43Petrov, modern attack, Steinitz variation250.0%75.0%
C43Petrov, modern attack, Symmetrical variation286944.1%53.0%
C43Petrov, modern attack, Trifunovic variation5846.6%47.4%
C43Petrov, modern attack, main line21147.4%57.8%
C44Dresden opening1618.8%40.6%
C44Inverted Hanham4228.6%45.2%
C44Inverted Hungarian3243.8%56.3%
C44King's pawn game11831.4%48.7%
C44Konstantinopolsky opening3438.2%63.2%
C44Ponziani counter-gambit12840.6%60.2%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C44Ponziani opening35931.2%46.2%
C44Ponziani, Caro variation25244.0%49.4%
C44Ponziani, Fraser defence6339.7%65.9%
C44Ponziani, Jaenisch counter-attack231244.6%52.4%
C44Ponziani, Leonhardt variation11833.9%48.3%
C44Ponziani, Reti variation4032.5%56.3%
C44Ponziani, Romanishin variation2227.3%50.0%
C44Ponziani, Steinitz variation50041.2%46.2%
C44Scotch gambit11640.5%58.2%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Scotch gambit, Benima defence5738.6%56.1%
C44Scotch gambit, Dubois-Reti defence36341.3%53.4%
C44Scotch gambit, Hanneken variation10.0%100.0%
C44Scotch opening1442.9%42.9%
C44Scotch, Goering gambit22741.9%55.3%
C44Scotch, Goering gambit, Bardeleben variation1540.0%46.7%
C44Scotch, Lolli variation2030.0%55.0%
C44Scotch, Relfsson gambit ('MacLopez')850.0%62.5%
C44Tayler opening20.0%50.0%
C45Scotch game277542.2%54.3%
C45Scotch, Blackburne attack2147.6%47.6%
C45Scotch, Blumenfeld attack1637.5%31.3%
C45Scotch, Ghulam Kassim variation875.0%50.0%
C45Scotch, Horwitz attack2931.0%60.3%
C45Scotch, Meitner variation3554.3%55.7%
C45Scotch, Mieses variation154941.3%54.0%
C45Scotch, Paulsen attack728.6%71.4%
C45Scotch, Potter variation62038.7%52.3%
C45Scotch, Pulling counter-attack520.0%70.0%
C45Scotch, Romanishin variation7140.8%58.5%
C45Scotch, Schmidt variation76849.9%47.9%
C45Scotch, Steinitz variation4632.6%57.6%
C45Scotch, Tartakower variation1833.3%38.9%
C46Four knights game86240.5%50.3%
C46Four knights, Gunsberg variation12744.9%51.6%
C46Four knights, Italian variation22543.6%47.6%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C46Three knights game33532.5%58.7%
C46Three knights, Schlechter variation4037.5%53.8%
C46Three knights, Steinitz variation22429.5%54.9%
C46Three knights, Steinitz, Rosenthal variation2343.5%47.8%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C47Four knights, Belgrade gambit12245.1%53.7%
C47Four knights, Scotch variation2425.0%54.2%
C47Four knights, Scotch, 4...exd451451.0%53.9%
C47Four knights, Scotch, Krause variation4637.0%64.1%
C48Four knights, Bardeleben variation850.0%50.0%
C48Four knights, Marshall variation1020.0%50.0%
C48Four knights, Ranken variation3141.9%62.9%
C48Four knights, Rubinstein counter-gambit125640.0%52.1%
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 variation6744.8%52.2%
C48Four knights, Rubinstein counter-gambit, exchange variation17565.1%52.0%
C48Four knights, Spanish variation31049.0%55.2%
C48Four knights, Spanish, classical defence23144.2%50.2%
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) variation7556.0%58.7%
C49Four knights, Svenonius variation560.0%50.0%
C49Four knights, double Ruy Lopez23341.2%56.7%
C49Four knights, symmetrical variation21441.1%56.1%
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 unpin34737.2%50.6%
C49Four knights, symmetrical, Pillsbury variation6446.9%45.3%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C50Giuoco Pianissimo230837.8%53.6%
C50Giuoco Pianissimo, Canal variation20242.6%53.0%
C50Giuoco Pianissimo, Italian four knights variation49437.2%51.6%
C50Giuoco Piano142239.5%52.8%
C50Giuoco Piano, four knights variation6535.4%54.6%
C50Hungarian defence21037.1%49.5%
C50King's pawn game27335.2%60.4%
C50Rousseau gambit333.3%50.0%
C51Evans counter-gambit3225.0%56.3%
C51Evans gambit1145.5%68.2%
C51Evans gambit declined5635.7%53.6%
C51Evans gambit declined, 5.a419641.3%47.2%
C51Evans gambit declined, Lange variation20.0%0.0%
C51Evans gambit declined, Showalter variation4847.9%55.2%
C51Evans gambit, 5...Be77133.8%60.6%
C51Evans gambit, Cordel variation10246.1%45.6%
C51Evans gambit, Fraser attack714.3%78.6%
C51Evans gambit, Goering attack10.0%100.0%
C51Evans gambit, Morphy attack2740.7%57.4%
C51Evans gambit, Paulsen variation2025.0%67.5%
C51Evans gambit, Stone-Ware variation24332.5%52.9%
C51Evans gambit, normal variation3116.1%50.0%
C52Evans gambit36738.4%48.6%
C52Evans gambit, Alapin-Steinitz variation250.0%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 attack7844.9%45.5%
C52Evans gambit, Waller attack825.0%87.5%
C52Evans gambit, compromised defence4520.0%74.4%
C52Evans gambit, compromised defence, Paulsen variation1723.5%58.8%
C52Evans gambit, compromised defence, Potter variation10.0%100.0%
C53Giuoco Piano270638.1%52.3%
C53Giuoco Piano, Anderssen variation2860.7%41.1%
C53Giuoco Piano, Bird's attack18132.0%50.3%
C53Giuoco Piano, Eisinger variation20.0%100.0%
C53Giuoco Piano, LaBourdonnais variation4143.9%53.7%
C53Giuoco Piano, Mestel variation1010.0%75.0%
C53Giuoco Piano, centre-holding variation7640.8%62.5%
C53Giuoco Piano, close variation12035.8%57.9%
C54Giuoco Piano21353.1%51.4%
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 defence10736.4%50.0%
C55Two knights defence (Modern bishop's opening)164838.2%55.9%
C55Two knights defence, Keidanz variation2100.0%50.0%
C55Two knights defence, Perreux variation3554.3%55.7%
C55Two knights, Max Lange attack3429.4%58.8%
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 variation825.0%62.5%
C55Two knights, Max Lange attack, Schlechter variation2450.0%54.2%
C55Two knights, Max Lange attack, Steinitz variation1637.5%68.8%
C56Two knights defence14445.1%49.0%
C56Two knights defence, Canal variation540.0%40.0%
C57Two knights defence2025.0%42.5%
C57Two knights defence, Fegatello attack7926.6%50.0%
C57Two knights defence, Fegatello attack, Leonhardt variation825.0%50.0%
C57Two knights defence, Fegatello attack, Polerio defence40.0%100.0%
C57Two knights defence, Fritz variation7741.6%49.4%
C57Two knights defence, Fritz, Gruber variation1233.3%50.0%
C57Two knights defence, Lolli attack1936.8%55.3%
C57Two knights defence, Pincus variation825.0%25.0%
C57Two knights defence, Ulvestad variation9250.0%45.7%
C57Two knights defence, Wilkes Barre (Traxler) variation10834.3%56.0%
C58Two knights defence30035.3%56.0%
C58Two knights defence, Blackburne variation30.0%66.7%
C58Two knights defence, Bogolyubov variation7630.3%42.8%
C58Two knights defence, Colman variation8032.5%47.5%
C58Two knights defence, Kieseritsky variation3828.9%56.6%
C58Two knights defence, Paoli variation933.3%72.2%
C58Two knights defence, Yankovich variation1435.7%25.0%
C59Two knights defence20038.0%49.0%
C59Two knights defence, Goering variation812.5%31.3%
C59Two knights defence, Steinitz variation38930.3%48.1%
C60Ruy Lopez (Spanish opening)7431.1%56.1%
C60Ruy Lopez, Cozio defence48637.2%52.8%
C60Ruy Lopez, Cozio defence, Paulsen variation5632.1%67.9%
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) defence52739.8%52.9%
C61Ruy Lopez, Bird's defence51835.7%55.5%
C61Ruy Lopez, Bird's defence, Paulsen variation850.0%62.5%
C62Ruy Lopez, old Steinitz defence44236.0%55.1%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation2040.0%55.0%
C63Ruy Lopez, Schliemann defence46941.8%57.6%
C63Ruy Lopez, Schliemann defence, Berger variation46543.4%56.3%
C64Ruy Lopez, Cordel gambit9540.0%56.8%
C64Ruy Lopez, classical (Cordel) defence31139.2%53.1%
C64Ruy Lopez, classical defence, 4.c333240.7%56.5%
C64Ruy Lopez, classical defence, Benelux variation 43538.6%55.6%
C64Ruy Lopez, classical defence, Charousek variation1030.0%65.0%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C65Ruy Lopez, Berlin defence424638.9%51.9%
C65Ruy Lopez, Berlin defence, 4.O-O23240.9%59.3%
C65Ruy Lopez, Berlin defence, Anderssen variation250.0%75.0%
C65Ruy Lopez, Berlin defence, Beverwijk variation59138.2%57.4%
C65Ruy Lopez, Berlin defence, Duras variation2937.9%46.6%
C65Ruy Lopez, Berlin defence, Kaufmann variation3647.2%54.2%
C65Ruy Lopez, Berlin defence, Mortimer variation2751.9%44.4%
C65Ruy Lopez, Berlin defence, Nyholm attack11253.6%52.7%
C66Ruy Lopez, Berlin defence, 4.O-O, d613844.2%58.3%
C66Ruy Lopez, Berlin defence, hedgehog variation11850.8%58.5%
C66Ruy Lopez, closed Berlin defence, Bernstein variation2045.0%57.5%
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 variation4339.5%61.6%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C67Ruy Lopez, Berlin defence, Winawer attack2934.5%69.0%
C67Ruy Lopez, Berlin defence, Zukertort variation1656.3%59.4%
C67Ruy Lopez, Berlin defence, open variation430847.1%53.6%
C67Ruy Lopez, open Berlin defence, 5...Be79339.8%53.2%
C67Ruy Lopez, open Berlin defence, Showalter variation2222.7%47.7%
C67Ruy Lopez, open Berlin defence, l'Hermet variation11355.8%50.0%
C68Ruy Lopez, exchange variation10236.3%53.4%
C68Ruy Lopez, exchange, Alekhine variation2236.4%45.5%
C68Ruy Lopez, exchange, Keres variation14346.9%50.7%
C68Ruy Lopez, exchange, Romanovsky variation4035.0%52.5%
C69Ruy Lopez, exchange variation, 5.O-O96941.1%53.6%
C69Ruy Lopez, exchange variation, Alapin gambit34142.5%51.8%
C69Ruy Lopez, exchange, Bronstein variation73136.5%49.9%
C69Ruy Lopez, exchange, Gligoric variation82343.6%54.5%
C70Ruy Lopez15038.7%54.0%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C70Ruy Lopez, Caro variation9743.3%58.8%
C70Ruy Lopez, Classical defence deferred11939.5%58.4%
C70Ruy Lopez, Cozio defence deferred46940.9%53.5%
C70Ruy Lopez, Graz variation1266.7%58.3%
C70Ruy Lopez, Schliemann defence deferred3336.4%63.6%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation16139.1%62.4%
C70Ruy Lopez, fianchetto defence deferred9849.0%54.1%
C71Ruy Lopez, modern Steinitz defence17342.8%56.6%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation22338.6%57.4%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C72Ruy Lopez, modern Steinitz defence, 5.O-O77440.1%57.5%
C73Ruy Lopez, modern Steinitz defence, Alapin variation24231.4%51.2%
C73Ruy Lopez, modern Steinitz defence, Richter variation22948.9%50.7%
C74Ruy Lopez, Siesta, Kopayev variation18433.2%55.2%
C74Ruy Lopez, modern Steinitz defence15529.7%60.0%
C74Ruy Lopez, modern Steinitz defence, siesta variation9430.9%50.5%
C75Ruy Lopez, modern Steinitz defence21742.4%52.5%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation15128.5%58.6%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation47634.7%53.3%
C77Ruy Lopez, Anderssen variation142542.8%51.8%
C77Ruy Lopez, Morphy defence25538.0%56.3%
C77Ruy Lopez, Morphy defence, Duras variation7339.7%58.2%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)9646.9%44.3%
C77Ruy Lopez, Wormald (Alapin) attack49743.1%53.3%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C77Ruy Lopez, four knights (Tarrasch) variation21343.7%54.2%
C78Ruy Lopez, ...b5 & ...d65836.2%56.0%
C78Ruy Lopez, 5.O-O128846.0%54.3%
C78Ruy Lopez, Archangelsk (counterthrust) variation174942.8%54.5%
C78Ruy Lopez, Moeller defence66542.3%54.2%
C78Ruy Lopez, Wing attack1643.8%53.1%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)41137.7%55.8%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1266.7%58.3%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation2948.3%55.2%
C80Ruy Lopez, open (Tarrasch) defence6540.0%63.1%
C80Ruy Lopez, open, 6.d45040.0%44.0%
C80Ruy Lopez, open, 7.Bb348940.7%52.9%
C80Ruy Lopez, open, 8...Be6128338.3%43.6%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C80Ruy Lopez, open, Bernstein variation96149.0%62.8%
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 attack25449.6%54.7%
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 variation1643.8%71.9%
C82Ruy Lopez, open, St. Petersburg variation20142.3%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 defence22047.3%59.1%
C84Ruy Lopez, closed defence159241.0%52.5%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C84Ruy Lopez, closed, centre attack18548.6%47.6%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)145640.0%49.2%
C86Ruy Lopez, Worrall attack3250.0%56.3%
C86Ruy Lopez, Worrall attack, sharp line27940.1%52.7%
C86Ruy Lopez, Worrall attack, solid line13938.8%50.4%
C87Ruy Lopez, closed, Averbach variation36641.8%58.6%
C88Ruy Lopez, Trajkovic counter-attack66942.2%52.3%
C88Ruy Lopez, closed130441.6%53.1%
C88Ruy Lopez, closed, 7...O-O314140.8%52.3%
C88Ruy Lopez, closed, 7...d6, 8.d42334.8%21.7%
C88Ruy Lopez, closed, 8.c32839.3%62.5%
C88Ruy Lopez, closed, Balla variation4637.0%55.4%
C88Ruy Lopez, closed, anti-Marshall 8.a4173140.2%53.9%
C89Ruy Lopez, Marshall counter-attack56052.3%54.2%
C89Ruy Lopez, Marshall counter-attack, 11...c621346.0%55.9%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
C89Ruy Lopez, Marshall, main line, 12.d2d422640.7%62.8%
C89Ruy Lopez, Marshall, main line, 14...Qh345050.9%51.0%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
C90Ruy Lopez, closed (with ...d6)120137.1%51.5%
C90Ruy Lopez, closed, Lutikov variation3951.3%56.4%
C90Ruy Lopez, closed, Pilnik variation85735.8%51.8%
C90Ruy Lopez, closed, Suetin variation8837.5%58.5%
C91Ruy Lopez, closed, 9.d4123639.2%57.9%
C91Ruy Lopez, closed, Bogolyubov variation387043.5%53.8%
C92Ruy Lopez, closed, 9.h341243.0%52.1%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)199738.9%56.5%
C92Ruy Lopez, closed, Keres (9...a5) variation2055.0%47.5%
C92Ruy Lopez, closed, Kholmov variation13231.8%65.2%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation33242.5%63.7%
C93Ruy Lopez, closed, Smyslov defence25640.6%58.6%
C94Ruy Lopez, closed, Breyer defence10638.7%57.1%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation79339.6%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)67532.9%64.9%
C96Ruy Lopez, closed (8...Na5)3253.1%64.1%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
C96Ruy Lopez, closed, Keres (...Nd7) defence23136.8%65.6%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C97Ruy Lopez, closed, Chigorin defence80931.0%63.0%
C98Ruy Lopez, closed, Chigorin, 12...Nc614831.1%62.8%
C99Ruy Lopez, closed, Chigorin, 12...c5d491240.2%62.9%
D00Blackmar gambit23338.2%40.6%
D00Blackmar-Diemer gambit6245.2%43.5%
D00Blackmar-Diemer, Euwe defence3525.7%47.1%
D00Blackmar-Diemer, Lemberg counter-gambit1618.8%59.4%
D00Levitsky attack (Queen's bishop attack)257934.9%51.2%
D00Queen's pawn game116535.9%50.2%
D00Queen's pawn, Anti-Veresov450.0%50.0%
D00Queen's pawn, Chigorin variation64931.4%51.0%
D00Queen's pawn, Mason variation149236.9%52.9%
D00Queen's pawn, Mason variation, Steinitz counter-gambit66836.8%51.6%
D00Queen's pawn, stonewall attack7331.5%41.8%
D01Richter-Veresov attack78030.1%48.4%
D01Richter-Veresov attack, Richter variation2524.0%56.0%
D01Richter-Veresov attack, Veresov variation3040.0%50.0%
D02Queen's bishop game179638.6%53.3%
D02Queen's pawn game650339.7%52.9%
D02Queen's pawn game, Chigorin variation64638.4%55.1%
D02Queen's pawn game, Krause variation61141.4%54.4%
D03Torre attack (Tartakower variation)85138.3%50.8%
D04Queen's pawn game123337.9%51.2%
D05Colle system23845.8%53.2%
D05Queen's pawn game81936.3%52.8%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation35137.9%53.4%
D05Queen's pawn game, Zukertort variation4546.7%58.9%
D06QGD, Grau (Sahovic) defence29833.2%59.6%
D06QGD, Marshall defence31639.2%55.4%
D06QGD, symmetrical (Austrian) defence13543.7%59.6%
D07QGD, Chigorin defence104935.2%56.6%
D07QGD, Chigorin defence, Janowski variation11833.1%62.3%
D08QGD, Albin counter-gambit51437.5%55.0%
D08QGD, Albin counter-gambit, Alapin variation9642.7%58.9%
D08QGD, Albin counter-gambit, Balogh variation1717.6%79.4%
D08QGD, Albin counter-gambit, Janowski variation1926.3%76.3%
D08QGD, Albin counter-gambit, Krenosz variation1428.6%57.1%
D08QGD, Albin counter-gambit, Lasker trap50.0%60.0%
D09QGD, Albin counter-gambit, 5.g338040.0%56.1%
D10QGD Slav defence472240.3%54.2%
D10QGD Slav defence, Alekhine variation30038.0%56.7%
D10QGD Slav defence, exchange variation184843.8%55.6%
D10QGD Slav, Winawer counter-gambit22031.8%52.7%
D11QGD Slav, 3.Nf3343539.7%55.1%
D11QGD Slav, 4.e3520041.7%55.2%
D11QGD Slav, Breyer variation22640.7%59.3%
D12QGD Slav, 4.e3 Bf5359239.9%54.5%
D12QGD Slav, Amsterdam variation2254.5%45.5%
D12QGD Slav, exchange variation10634.9%48.6%
D13QGD Slav, exchange variation80746.7%55.3%
D14QGD Slav, exchange variation, 6.Bf4 Bf571350.1%51.7%
D14QGD Slav, exchange, Trifunovic variation23250.0%52.6%
D15QGD Slav accepted13738.7%51.5%
D15QGD Slav, 4.Nc3484539.8%55.0%
D15QGD Slav, 5.e3 (Alekhine variation)19631.1%56.9%
D15QGD Slav, Schlechter variation36941.5%59.5%
D15QGD Slav, Slav gambit3531.4%58.6%
D15QGD Slav, Suechting variation19631.6%59.7%
D15QGD Slav, Tolush-Geller gambit14026.4%42.5%
D16QGD Slav accepted, Alapin variation22636.3%65.0%
D16QGD Slav, Smyslov variation9137.4%60.4%
D16QGD Slav, Soultanbeieff variation50049.0%52.7%
D16QGD Slav, Steiner variation26836.6%63.1%
D17QGD Slav, Carlsbad variation49237.2%60.9%
D17QGD Slav, Czech defence46347.5%55.5%
D17QGD Slav, Krause attack80039.4%58.4%
D17QGD Slav, Wiesbaden variation68042.5%57.0%
D18QGD Slav, Dutch variation35241.5%59.4%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D19QGD Slav, Dutch variation152239.8%56.9%
D19QGD Slav, Dutch variation, main line25142.2%57.4%
D19QGD Slav, Dutch, Saemisch variation250.0%25.0%
D20QGA, 3.e4332139.6%56.4%
D20QGA, Linares variation9736.1%59.3%
D20Queen's gambit accepted119344.7%54.7%
D21QGA, 3.Nf341440.6%58.2%
D21QGA, Alekhine defense, Borisenko-Furman variation3831.6%44.7%
D21QGA, Ericson variation60.0%33.3%
D22QGA, Alekhine defence44139.2%56.8%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
D22QGA, Haberditz variation19453.6%53.6%
D23QGA, Mannheim variation45441.4%53.5%
D23Queen's gambit accepted5641.1%52.7%
D24QGA, 4.Nc331139.2%50.8%
D24QGA, Bogolyubov variation18644.6%56.7%
D25QGA, 4.e317735.0%57.1%
D25QGA, Flohr variation9427.7%64.9%
D25QGA, Janowsky-Larsen variation51438.5%58.2%
D25QGA, Smyslov variation10551.4%60.0%
D26QGA, 4...e631743.5%53.0%
D26QGA, classical variation83551.9%53.2%
D26QGA, classical variation, 6.O-O17948.6%58.4%
D26QGA, classical, Furman variation366.7%33.3%
D26QGA, classical, Steinitz variation10756.1%61.7%
D27QGA, classical, 6...a6424651.5%55.1%
D27QGA, classical, Geller variation8852.3%56.8%
D27QGA, classical, Rubinstein variation156347.9%56.3%
D28QGA, classical, 7...b525551.0%54.1%
D28QGA, classical, 7.Qe26750.7%61.2%
D28QGA, classical, Flohr variation10.0%0.0%
D29QGA, classical, 8...Bb734241.2%48.1%
D29QGA, classical, Smyslov variation4252.4%45.2%
D30QGD97846.6%52.4%
D30QGD Slav43743.0%54.2%
D30QGD Slav, Semmering variation3531.4%47.1%
D30QGD, Capablanca variation3531.4%58.6%
D30QGD, Capablanca-Duras variation39244.4%53.1%
D30QGD, Hastings variation67147.2%52.2%
D30QGD, Stonewall variation450.0%75.0%
D30QGD, Vienna variation93752.4%52.3%
D30Queen's gambit declined697144.1%55.4%
D31QGD, 3.Nc3114238.6%54.6%
D31QGD, Alapin variation1723.5%64.7%
D31QGD, Charousek (Petrosian) variation190845.4%53.8%
D31QGD, Janowski variation26740.8%53.7%
D31QGD, semi-Slav133139.8%53.6%
D31QGD, semi-Slav, Abrahams variation15833.5%42.1%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
D31QGD, semi-Slav, Marshall gambit112942.6%53.7%
D31QGD, semi-Slav, Noteboom variation33538.2%50.4%
D32QGD, Tarrasch defence48944.6%53.6%
D32QGD, Tarrasch defence, 4.cd ed4134.1%43.9%
D32QGD, Tarrasch defence, Marshall gambit1442.9%57.1%
D32QGD, Tarrasch defence, Tarrasch gambit1353.8%42.3%
D32QGD, Tarrasch, von Hennig-Schara gambit9041.1%61.7%
D33QGD, Tarrasch, Folkestone (Swedish) variation17649.4%53.1%
D33QGD, Tarrasch, Prague variation17537.1%52.3%
D33QGD, Tarrasch, Schlechter-Rubinstein system5137.3%52.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%25.0%
D33QGD, Tarrasch, Wagner variation3554.3%52.9%
D34QGD, Tarrasch, Prague variation, 7...Be719043.7%55.5%
D34QGD, Tarrasch, Prague variation, 9.Bg560446.7%58.3%
D34QGD, Tarrasch, Prague variation, Normal position70949.2%55.8%
D34QGD, Tarrasch, Reti variation3360.6%60.6%
D35QGD, 3...Nf612934.1%50.4%
D35QGD, Harrwitz attack25751.0%55.1%
D35QGD, exchange variation41842.3%55.9%
D35QGD, exchange, Saemisch variation36046.7%53.1%
D35QGD, exchange, positional line118040.7%54.7%
D35QGD, exchange, positional line, 5...c690942.9%55.4%
D36QGD, exchange, positional line, 6.Qc241641.6%54.2%
D37QGD, 4.Nf3647346.0%53.1%
D37QGD, classical variation (5.Bf4)479045.0%55.2%
D38QGD, Ragozin variation509045.7%52.7%
D39QGD, Ragozin, Vienna variation171549.1%51.3%
D40QGD, Semi-Tarrasch defence44842.2%55.2%
D40QGD, Semi-Tarrasch defence, Pillsbury variation7247.2%59.7%
D40QGD, Semi-Tarrasch, Levenfish variation10.0%100.0%
D40QGD, Semi-Tarrasch, symmetrical variation2142.9%54.8%
D41QGD, Semi-Tarrasch with e327642.8%57.6%
D41QGD, Semi-Tarrasch, 5.cd74148.3%56.5%
D41QGD, Semi-Tarrasch, Kmoch variation966.7%44.4%
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%
D42QGD, Semi-Tarrasch, 7.Bd334944.1%54.4%
D43QGD semi-Slav815741.3%52.9%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D44QGD semi-Slav, 5.Bg5 dc19746.7%49.2%
D44QGD semi-Slav, Botvinnik system (anti-Meran)8137.0%56.8%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D44QGD semi-Slav, anti-Meran gambit80435.1%58.3%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation17030.0%66.2%
D44QGD semi-Slav, anti-Meran, Szabo variation2520.0%38.0%
D45QGD semi-Slav, 5...Nd763237.2%52.8%
D45QGD semi-Slav, 5.e346939.2%56.5%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1926.3%44.7%
D45QGD semi-Slav, Stoltz variation1246543.5%53.2%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)242243.9%54.1%
D45QGD semi-Slav, stonewall defence1250.0%50.0%
D46QGD semi-Slav, 6.Bd34235.7%65.5%
D46QGD semi-Slav, Bogolyubov variation18243.4%55.8%
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 variation138849.5%54.1%
D47QGD semi-Slav, Meran, Wade variation706039.6%53.6%
D47QGD semi-Slav, neo-Meran (Lundin variation)32548.6%54.5%
D48QGD semi-Slav, Meran205.0%37.5%
D48QGD semi-Slav, Meran, 8...a6142949.4%48.7%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
D48QGD semi-Slav, Meran, Reynolds' variation78439.8%56.1%
D48QGD semi-Slav, Meran, old main line11837.3%53.4%
D49QGD semi-Slav, Meran, Blumenfeld variation19843.9%53.8%
D49QGD semi-Slav, Meran, Rabinovich variation7830.8%47.4%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
D49QGD semi-Slav, Meran, Sozin variation16643.4%47.0%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
D50QGD, 4.Bg540336.7%57.6%
D50QGD, Been-Koomen variation2850.0%46.4%
D50QGD, Canal (Venice) variation825.0%62.5%
D50QGD, Semi-Tarrasch5352.8%50.9%
D50QGD, Semi-Tarrasch, Krause variation1100.0%50.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1338.5%57.7%
D51QGD4146.3%59.8%
D51QGD, 4.Bg5 Nbd79738.1%54.1%
D51QGD, 5...c618045.0%50.3%
D51QGD, Alekhine variation40.0%50.0%
D51QGD, Capablanca anti-Cambridge Springs variation4139.0%61.0%
D51QGD, Manhattan variation2142.9%54.8%
D51QGD, Rochlin variation944.4%44.4%
D52QGD20539.5%57.3%
D52QGD, Cambridge Springs defence4443.2%46.6%
D52QGD, Cambridge Springs defence, 7.cd6630.3%51.5%
D52QGD, Cambridge Springs defence, Argentine variation2128.6%42.9%
D52QGD, Cambridge Springs defence, Bogoljubow variation49749.3%55.4%
D52QGD, Cambridge Springs defence, Capablanca variation3636.1%59.7%
D52QGD, Cambridge Springs defence, Rubinstein variation19539.0%56.4%
D52QGD, Cambridge Springs defence, Yugoslav variation48637.2%56.1%
D53QGD, 4.Bg5 Be7113645.2%55.2%
D53QGD, 4.Bg5 Be7, 5.e3 O-O8145.7%51.2%
D53QGD, Lasker variation633.3%66.7%
D54QGD, Anti-neo-orthodox variation13044.6%55.4%
D55QGD, 6.Nf317335.8%56.1%
D55QGD, Neo-orthodox variation837.5%56.3%
D55QGD, Neo-orthodox variation, 7.Bh417546.9%56.0%
D55QGD, Neo-orthodox variation, 7.Bxf638245.8%50.9%
D55QGD, Petrosian variation39153.5%53.1%
D55QGD, Pillsbury attack250.0%75.0%
D56QGD, Lasker defence46146.9%53.4%
D56QGD, Lasker defence, Teichmann variation11350.4%50.0%
D57QGD, Lasker defence, Bernstein variation3060.0%53.3%
D57QGD, Lasker defence, main line15752.2%54.8%
D58QGD, Tartakower (Makagonov-Bondarevsky) system516846.4%52.1%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd524148.1%45.6%
D59QGD, Tartakower variation12346.3%47.6%
D60QGD, Orthodox defence11634.5%53.4%
D60QGD, Orthodox defence, Botvinnik variation9736.1%51.0%
D60QGD, Orthodox defence, Rauzer variation9848.0%57.7%
D61QGD, Orthodox defence, Rubinstein variation37244.4%53.1%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)22949.8%55.0%
D63QGD, Orthodox defence11546.1%59.6%
D63QGD, Orthodox defence, 7.Rc126639.8%56.4%
D63QGD, Orthodox defence, Capablanca variation366.7%66.7%
D63QGD, Orthodox defence, Pillsbury attack2552.0%58.0%
D63QGD, Orthodox defence, Swiss (Henneberger) variation11243.8%60.3%
D63QGD, Orthodox defence, Swiss, Karlsbad variation31043.9%52.9%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)10645.3%55.7%
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 line1947.4%65.8%
D66QGD, Orthodox defence, Bd3 line31747.6%57.9%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation2343.5%60.9%
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 variation6555.4%61.5%
D68QGD, Orthodox defence, classical variation8051.3%55.6%
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) defence20437.7%52.2%
D70Neo-Gruenfeld defence29536.3%54.1%
D71Neo-Gruenfeld, 5.cd34647.1%56.2%
D72Neo-Gruenfeld, 5.cd, main line25834.9%60.1%
D73Neo-Gruenfeld, 5.Nf391050.7%55.4%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O27246.0%56.4%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc319946.2%57.3%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc3030.0%68.3%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb658444.9%57.9%
D77Neo-Gruenfeld, 6.O-O77946.3%54.6%
D78Neo-Gruenfeld, 6.O-O c687842.8%54.2%
D79Neo-Gruenfeld, 6.O-O, main line57549.0%54.6%
D80Gruenfeld defence118845.0%53.2%
D80Gruenfeld, Lundin variation10.0%0.0%
D80Gruenfeld, Stockholm variation85343.7%53.3%
D81Gruenfeld, Russian variation66740.8%59.4%
D82Gruenfeld, 4.Bf467342.6%53.3%
D83Gruenfeld, Gruenfeld gambit7045.7%57.1%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation2356.5%63.0%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation43341.8%57.4%
D84Gruenfeld, Gruenfeld gambit accepted12740.9%56.7%
D85Gruenfeld, exchange variation350147.6%56.2%
D85Gruenfeld, modern exchange variation342646.8%56.1%
D86Gruenfeld, exchange, Larsen variation1136.4%54.5%
D86Gruenfeld, exchange, Simagin's improved variation15239.5%54.6%
D86Gruenfeld, exchange, Simagin's lesser variation5945.8%58.5%
D86Gruenfeld, exchange, classical variation117046.5%55.6%
D87Gruenfeld, exchange, Seville variation9054.4%61.7%
D87Gruenfeld, exchange, Spassky variation59142.8%56.1%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd25941.3%60.8%
D89Gruenfeld, Spassky variation, main line, 13.Bd37439.2%48.0%
D89Gruenfeld, exchange, Sokolsky variation1241.7%45.8%
D90Gruenfeld, Flohr variation34737.2%55.2%
D90Gruenfeld, Schlechter variation4025.0%47.5%
D90Gruenfeld, Three knights variation78047.9%54.2%
D91Gruenfeld, 5.Bg5101539.6%48.4%
D92Gruenfeld, 5.Bf482244.5%55.8%
D93Gruenfeld with Bf4 e335449.7%54.2%
D94Gruenfeld with e3 Bd32441.7%50.0%
D94Gruenfeld, 5.e347044.0%56.9%
D94Gruenfeld, Flohr defence2352.2%60.9%
D94Gruenfeld, Makogonov variation12740.2%50.8%
D94Gruenfeld, Opovcensky variation20140.8%52.2%
D94Gruenfeld, Smyslov defence17546.3%57.4%
D95Gruenfeld with e3 & Qb34136.6%59.8%
D95Gruenfeld, Botvinnik variation11140.5%50.9%
D96Gruenfeld, Russian variation37440.9%52.5%
D97Gruenfeld, Russian variation with e46131.1%61.5%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation182745.0%51.1%
D97Gruenfeld, Russian, Byrne (Simagin) variation15540.0%60.6%
D97Gruenfeld, Russian, Levenfish variation2035.0%57.5%
D97Gruenfeld, Russian, Prins variation47644.1%56.9%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation26344.5%58.7%
D98Gruenfeld, Russian, Keres variation2147.6%47.6%
D98Gruenfeld, Russian, Smyslov variation34741.2%58.6%
D99Gruenfeld defence, Smyslov, Yugoslav variation2321.7%45.7%
D99Gruenfeld defence, Smyslov, main line20540.5%58.8%
E00Catalan opening406841.6%54.8%
E00Neo-Indian (Seirawan) attack26629.3%50.0%
E00Queen's pawn game56437.4%56.6%
E01Catalan, closed67947.0%54.1%
E02Catalan, open, 5.Qa419344.0%57.8%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc414749.0%44.2%
E03Catalan, open, Alekhine variation4632.6%48.9%
E04Catalan, open, 5.Nf3497943.6%53.8%
E05Catalan, open, classical line15950.9%56.9%
E06Catalan, closed, 5.Nf3341048.5%54.3%
E07Catalan, closed, 6...Nbd712744.1%52.0%
E07Catalan, closed, Botvinnik variation11735.9%48.7%
E08Catalan, closed, 7.Qc212536.8%61.6%
E08Catalan, closed, Qc2 & b328839.9%50.9%
E08Catalan, closed, Spassky gambit922.2%55.6%
E08Catalan, closed, Zagoryansky variation862.5%56.3%
E09Catalan, closed, Sokolsky variation520.0%50.0%
E09Catalan, closed, main line29234.9%58.9%
E10Blumenfeld counter-gambit37640.4%56.4%
E10Blumenfeld counter-gambit accepted14639.0%54.5%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation24335.8%55.8%
E10Blumenfeld counter-gambit, Spielmann variation15635.9%59.6%
E10Doery defence3336.4%57.6%
E10Dzindzikhashvili defence16741.9%52.7%
E10Queen's pawn game510343.8%55.4%
E11Bogo-Indian defence200239.8%55.1%
E11Bogo-Indian defence, Gruenfeld variation254639.6%56.3%
E11Bogo-Indian defence, Monticelli trap2142.9%40.5%
E11Bogo-Indian defence, Nimzovich variation172938.9%57.6%
E12Queen's Indian defence76740.7%54.2%
E12Queen's Indian, 4.Nc3518840.1%53.2%
E12Queen's Indian, 4.Nc3, Botvinnik variation4425.0%48.9%
E12Queen's Indian, Miles variation164643.1%53.7%
E12Queen's Indian, Petrosian system757942.9%54.3%
E13Queen's Indian, 4.Nc3, main line27236.4%52.4%
E14Queen's Indian, 4.e3194039.3%52.9%
E14Queen's Indian, Averbakh variation425.0%37.5%
E15Queen's Indian, 4.g3293047.2%55.3%
E15Queen's Indian, 4.g3 Bb736840.8%53.8%
E15Queen's Indian, Buerger variation5937.3%61.0%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1630841.4%56.5%
E15Queen's Indian, Rubinstein variation17534.9%60.3%
E16Queen's Indian, Capablanca variation55042.4%57.2%
E16Queen's Indian, Riumin variation26537.7%58.9%
E16Queen's Indian, Yates variation46540.0%57.8%
E17Queen's Indian, 5.Bg2 Be74537.8%47.8%
E17Queen's Indian, Euwe variation7648.7%54.6%
E17Queen's Indian, Opovcensky variation78740.3%55.2%
E17Queen's Indian, anti-Queen's Indian system44840.4%53.2%
E17Queen's Indian, old main line, 6.O-O117343.1%58.1%
E18Queen's Indian, old main line, 7.Nc3184043.9%56.9%
E19Queen's Indian, old main line, 9.Qxc3146147.2%58.1%
E20Nimzo-Indian defence22946.7%51.7%
E20Nimzo-Indian, Kmoch variation110737.0%53.3%
E20Nimzo-Indian, Mikenas attack850.0%62.5%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system56843.5%54.1%
E21Nimzo-Indian, three knights variation311140.6%54.3%
E21Nimzo-Indian, three knights, Euwe variation862.5%56.3%
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%
E22Nimzo-Indian, Spielmann variation56336.9%52.9%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc610239.2%47.1%
E23Nimzo-Indian, Spielmann, Karlsbad variation3729.7%47.3%
E23Nimzo-Indian, Spielmann, San Remo variation2138.1%57.1%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
E24Nimzo-Indian, Saemisch variation39437.1%52.3%
E24Nimzo-Indian, Saemisch, Botvinnik variation8938.2%44.9%
E25Nimzo-Indian, Saemisch variation19342.0%55.2%
E25Nimzo-Indian, Saemisch, Keres variation31646.5%54.6%
E25Nimzo-Indian, Saemisch, Romanovsky variation12954.3%52.7%
E26Nimzo-Indian, Saemisch variation23837.4%56.1%
E26Nimzo-Indian, Saemisch, O'Kelly variation5139.2%51.0%
E27Nimzo-Indian, Saemisch variation10441.3%48.6%
E28Nimzo-Indian, Saemisch variation31030.3%52.6%
E29Nimzo-Indian, Saemisch, Capablanca variation3842.1%42.1%
E29Nimzo-Indian, Saemisch, main line13537.8%58.1%
E30Nimzo-Indian, Leningrad variation88833.9%50.2%
E30Nimzo-Indian, Leningrad, ...b5 gambit8234.1%47.6%
E31Nimzo-Indian, Leningrad, main line37733.4%50.1%
E32Nimzo-Indian, classical variation720042.1%54.0%
E32Nimzo-Indian, classical, Adorjan gambit11942.9%53.4%
E33Nimzo-Indian, classical, 4...Nc625335.2%56.7%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation42940.1%58.3%
E34Nimzo-Indian, classical, Noa variation94152.6%54.4%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed70948.5%50.4%
E36Nimzo-Indian, classical, Botvinnik variation1643.8%59.4%
E36Nimzo-Indian, classical, Noa variation, 5.a340843.1%52.9%
E36Nimzo-Indian, classical, Noa variation, main line10.0%0.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc250547.9%61.6%
E37Nimzo-Indian, classical, San Remo variation1127.3%59.1%
E38Nimzo-Indian, classical, 4...c572837.6%59.5%
E39Nimzo-Indian, classical, Pirc variation107739.7%55.4%
E40Nimzo-Indian, 4.e324529.8%57.8%
E40Nimzo-Indian, 4.e3, Taimanov variation19931.2%59.8%
E41Nimzo-Indian, 4.e3 c593043.3%54.5%
E41Nimzo-Indian, e3, Huebner variation50733.9%51.7%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)78646.8%54.1%
E43Nimzo-Indian, Fischer variation71136.3%53.4%
E44Nimzo-Indian, Fischer variation, 5.Ne265438.1%56.0%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation42740.3%55.3%
E46Nimzo-Indian, 4.e3 O-O9833.7%53.6%
E46Nimzo-Indian, Reshevsky variation107843.6%51.1%
E46Nimzo-Indian, Simagin variation18139.8%47.5%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd380145.4%52.3%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d567143.5%50.7%
E49Nimzo-Indian, 4.e3, Botvinnik system26944.2%55.9%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d524741.7%49.2%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d530249.7%51.3%
E51Nimzo-Indian, 4.e3, Ragozin variation4240.5%67.9%
E52Nimzo-Indian, 4.e3, main line with ...b660839.3%51.7%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd78151.9%50.6%
E53Nimzo-Indian, 4.e3, Keres variation11437.7%47.8%
E53Nimzo-Indian, 4.e3, main line with ...c545642.1%55.0%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc130848.2%55.7%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation3360.6%66.7%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation199448.3%55.6%
E56Nimzo-Indian, 4.e3, main line with 7...Nc645051.8%55.0%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd1338.5%57.7%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3154844.8%52.7%
E59Nimzo-Indian, 4.e3, main line77943.6%53.7%
E60King's Indian defence118832.2%55.2%
E60King's Indian, 3.Nf3342539.4%57.6%
E60King's Indian, 3.g3219342.0%55.6%
E60King's Indian, 3.g3, counterthrust variation1533.3%30.0%
E60King's Indian, Anti-Gruenfeld7332.9%60.3%
E60King's Indian, Danube gambit1241.7%54.2%
E60Queen's pawn, Mengarini attack3935.9%61.5%
E61King's Indian defence, 3.Nc3136434.8%55.4%
E61King's Indian, Smyslov system11234.8%53.1%
E62King's Indian, fianchetto variation8936.0%53.9%
E62King's Indian, fianchetto with ...Nc627432.5%56.0%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation59532.9%60.7%
E62King's Indian, fianchetto, Larsen system31740.4%62.1%
E62King's Indian, fianchetto, Simagin variation9733.0%62.9%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation34534.2%58.0%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation36736.5%60.5%
E63King's Indian, fianchetto, Panno variation234137.9%56.8%
E64King's Indian, fianchetto, Yugoslav system12737.0%58.7%
E65King's Indian, fianchetto, Yugoslav, 7.O-O28146.6%54.6%
E66King's Indian, fianchetto, Yugoslav Panno35833.0%57.8%
E67King's Indian, fianchetto with ...Nd711839.0%56.8%
E67King's Indian, fianchetto, classical variation58541.4%54.9%
E68King's Indian, fianchetto, classical variation, 8.e4137639.7%59.8%
E69King's Indian, fianchetto, classical main line51932.9%61.9%
E70King's Indian, 4.e4124332.3%58.5%
E70King's Indian, Kramer system48630.7%56.7%
E70King's Indian, accelerated Averbakh system16934.9%53.6%
E71King's Indian, Makagonov system (5.h3)95934.4%59.6%
E72King's Indian with e4 & g313632.4%56.6%
E72King's Indian, Pomar system5036.0%54.0%
E73King's Indian, 5.Be24429.5%60.2%
E73King's Indian, Averbakh system119934.3%55.9%
E73King's Indian, Semi-Averbakh system9934.3%58.6%
E74King's Indian, Averbakh, 6...c542637.3%57.2%
E75King's Indian, Averbakh, main line20632.0%56.8%
E76King's Indian, Four pawns attack31035.8%58.9%
E76King's Indian, Four pawns attack, dynamic line27035.9%50.6%
E77King's Indian, Four pawns attack19632.1%58.9%
E77King's Indian, Four pawns attack, 6.Be23748.6%54.1%
E77King's Indian, Four pawns attack, Florentine gambit1637.5%43.8%
E78King's Indian, Four pawns attack, with Be2 and Nf38438.1%56.0%
E79King's Indian, Four pawns attack, main line3951.3%56.4%
E80King's Indian, Saemisch variation58932.6%59.6%
E81King's Indian, Saemisch, 5...O-O253934.8%54.7%
E81King's Indian, Saemisch, Byrne variation9239.1%56.5%
E82King's Indian, Saemisch, double fianchetto variation16134.8%58.4%
E83King's Indian, Saemisch, 6...Nc613729.2%49.6%
E83King's Indian, Saemisch, Panno formation37837.6%56.6%
E83King's Indian, Saemisch, Ruban variation1729.4%50.0%
E84King's Indian, Saemisch, Panno main line61736.1%53.9%
E85King's Indian, Saemisch, orthodox variation15236.8%53.3%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c653730.9%53.8%
E87King's Indian, Saemisch, orthodox, 7.d544326.0%56.1%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
E88King's Indian, Saemisch, orthodox, 7.d5 c643733.2%57.3%
E89King's Indian, Saemisch, orthodox main line6532.3%56.2%
E90King's Indian, 5.Nf3105533.2%57.1%
E90King's Indian, Larsen variation12134.7%58.7%
E90King's Indian, Zinnowitz variation6939.1%52.9%
E91King's Indian, 6.Be269033.2%64.0%
E91King's Indian, Kazakh variation33337.2%56.8%
E92King's Indian, Andersson variation32052.8%49.2%
E92King's Indian, Gligoric-Taimanov system156834.6%58.5%
E92King's Indian, Petrosian system13029.2%53.1%
E92King's Indian, Petrosian system, Stein variation67033.6%54.0%
E92King's Indian, classical variation3531.4%47.1%
E93King's Indian, Petrosian system, main line10431.7%48.6%
E94King's Indian, orthodox variation108237.6%54.3%
E94King's Indian, orthodox, 7...Nbd797834.0%59.9%
E94King's Indian, orthodox, Donner variation24835.1%59.5%
E95King's Indian, orthodox, 7...Nbd7, 8.Re145337.1%55.4%
E96King's Indian, orthodox, 7...Nbd7, main line9736.1%59.3%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)417533.3%55.9%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack135535.9%58.2%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne193426.3%61.2%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack14321.0%61.5%
E99King's Indian, orthodox, Aronin-Taimanov, main line6532.3%62.3%

Created in 2005-2013 by CCRL team
Last games added on May 18, 2019