CCRL 40/4
Downloads and Statistics
June 16, 2018
Testing summary:
Total: 1'756'213 games
played by 2'066 programs
23541 CPU days (X2 4600+)

White wins: 686'325 (39.1%)
Black wins: 556'587 (31.7%)
Draws: 513'301 (29.2%)
White score: 53.7%

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
A00Amar (Paris) opening7622.4%41.4%
A00Amar gambit1216.7%50.0%
A00Amsterdam attack933.3%50.0%
A00Anderssen's opening70321.9%47.5%
A00Anti-Borg (Desprez) opening2321.7%58.7%
A00Battambang opening933.3%27.8%
A00Benko's opening1173330.9%51.0%
A00Benko's opening, reversed Alekhine11326.5%48.7%
A00Clemenz (Mead's, Basman's or de Klerk's) opening516423.1%49.9%
A00Dunst (Sleipner, Heinrichsen) opening195423.2%52.2%
A00Durkin's attack6717.9%53.7%
A00Gedult's opening3116.1%40.3%
A00Global opening1618.8%71.9%
A00Grob's attack24721.1%47.8%
A00Grob, Fritz gambit3910.3%20.5%
A00Lasker simul special14027.9%46.8%
A00Mieses opening50918.5%52.8%
A00Novosibirsk opening258.0%48.0%
A00Polish (Sokolsky) opening156428.3%50.4%
A00Polish, Outflank variation28224.8%49.3%
A00Polish, Tuebingen variation7321.9%52.1%
A00Saragossa opening93719.4%50.8%
A00Van't Kruijs opening129826.7%52.1%
A00Ware (Meadow Hay) opening20521.5%47.3%
A01Nimzovich-Larsen attack94426.1%51.3%
A01Nimzovich-Larsen attack, Dutch variation16721.0%50.6%
A01Nimzovich-Larsen attack, English variation42228.0%51.4%
A01Nimzovich-Larsen attack, Indian variation77926.7%53.4%
A01Nimzovich-Larsen attack, Polish variation2835.7%53.6%
A01Nimzovich-Larsen attack, classical variation185926.8%48.5%
A01Nimzovich-Larsen attack, modern variation300630.7%49.9%
A01Nimzovich-Larsen attack, symmetrical variation61730.3%49.8%
A02Bird's opening287829.5%49.8%
A02Bird's opening, Swiss gambit1414.3%64.3%
A02Bird, From gambit8826.1%47.2%
A02Bird, From gambit, Lasker variation3414.7%54.4%
A02Bird, From gambit, Lipke variation520.0%30.0%
A02Bird, Hobbs gambit425.0%62.5%
A03Bird's opening305424.4%48.6%
A03Bird's opening, Lasker variation5733.3%51.8%
A03Bird's opening, Williams gambit1816.7%58.3%
A03Mujannah opening70.0%42.9%
A04Reti opening1579528.2%53.0%
A04Reti v Dutch247526.5%56.8%
A04Reti, Lisitsin gambit deferred5820.7%43.1%
A04Reti, Pirc-Lisitsin gambit15822.2%58.5%
A04Reti, Wade defence540.0%80.0%
A05Reti opening1015328.8%52.6%
A05Reti, King's Indian attack234629.5%55.7%
A05Reti, King's Indian attack, Reti-Smyslov variation14928.2%51.0%
A05Reti, King's Indian attack, Spassky's variation84229.8%53.1%
A06Reti opening349927.1%53.2%
A06Reti, Nimzovich-Larsen attack420331.3%51.2%
A06Reti, old Indian attack32424.7%52.5%
A06Santasiere's folly14035.7%47.1%
A06Tennison (Lemberg, Zukertort) gambit2317.4%60.9%
A07Reti, King's Indian attack341633.8%52.8%
A07Reti, King's Indian attack (Barcza system)1060929.8%53.0%
A07Reti, King's Indian attack (with ...c5)43525.5%48.4%
A07Reti, King's Indian attack, Keres variation78430.9%52.2%
A07Reti, King's Indian attack, Pachman system25323.3%52.0%
A07Reti, King's Indian attack, Yugoslav variation510531.2%53.7%
A08Reti, King's Indian attack120330.5%54.9%
A08Reti, King's Indian attack, French variation115531.1%50.7%
A09Reti accepted131527.6%53.1%
A09Reti accepted, Keres variation12523.2%59.6%
A09Reti opening106727.3%53.7%
A09Reti, advance variation166225.4%47.7%
A10English opening497225.6%53.5%
A10English, Adorjan defence53936.5%51.7%
A10English, Anglo-Dutch defense139325.2%55.6%
A10English, Jaenisch gambit1921.1%68.4%
A11English, Caro-Kann defensive system155928.0%56.2%
A12English, Bled variation4431.8%59.1%
A12English, Capablanca's variation7528.0%48.7%
A12English, Caro-Kann defensive system28427.8%55.8%
A12English, Caro-Kann defensive system, Bogolyubov variation14022.1%50.4%
A12English, London defensive system42230.6%50.6%
A12English, New York (London) defensive system5034.0%43.0%
A12English, Torre defensive system42033.8%52.4%
A13English opening508825.5%52.7%
A13English opening, Agincourt variation292528.0%52.2%
A13English, Kurajica defence12224.6%50.8%
A13English, Neo-Catalan204130.1%53.8%
A13English, Neo-Catalan accepted239133.5%54.5%
A13English, Romanishin gambit83330.3%55.1%
A13English, Wimpey system35431.4%46.8%
A14English, Neo-Catalan declined117935.7%53.1%
A14English, Symmetrical, Keres defence90036.2%54.8%
A15English opening1319833.0%54.1%
A15English, 1...Nf6 (Anglo-Indian defense)168027.1%52.6%
A16English opening124928.0%54.1%
A16English, Anglo-Gruenfeld defense32430.6%52.6%
A16English, Anglo-Gruenfeld defense, Korchnoi variation1631.3%65.6%
A16English, Anglo-Gruenfeld, Czech defense13330.1%66.2%
A16English, Anglo-Gruenfeld, Smyslov defense7739.0%59.7%
A17English opening36931.2%53.0%
A17English, Nimzo-English opening264430.9%54.7%
A17English, Queens Indian formation24125.3%52.5%
A17English, Queens Indian, Romanishin variation4835.4%46.9%
A18English, Mikenas-Carls variation10825.0%56.9%
A18English, Mikenas-Carls, Flohr variation17831.5%60.1%
A18English, Mikenas-Carls, Kevitz variation4717.0%55.3%
A19English, Mikenas-Carls, Sicilian variation26828.4%55.6%
A20English opening1123428.5%52.3%
A20English, Nimzovich variation29926.4%54.0%
A20English, Nimzovich, Flohr variation67029.6%46.4%
A21English opening341027.4%54.1%
A21English, Keres variation2634.6%44.2%
A21English, Kramnik-Shirov counterattack375028.6%52.5%
A21English, Smyslov defence5527.3%57.3%
A21English, Troeger defence17929.1%54.2%
A22English opening106425.7%50.4%
A22English, Bellon gambit2015.0%42.5%
A22English, Bremen, Smyslov system273328.0%48.9%
A22English, Bremen, reverse dragon167434.6%53.1%
A22English, Carls' Bremen system88426.5%55.1%
A23English, Bremen system, Keres variation46733.2%49.1%
A24English, Bremen system with ...g69025.6%59.4%
A25English, Sicilian reversed111826.7%51.8%
A25English, closed system143028.0%53.3%
A25English, closed system (without ...d6)10424.0%48.6%
A25English, closed, 5.Rb171928.5%52.2%
A25English, closed, 5.Rb1 Taimanov variation425.0%37.5%
A25English, closed, Hort variation4332.6%51.2%
A25English, closed, Taimanov variation3336.4%45.5%
A26English, Botvinnik system42324.8%48.6%
A26English, closed system34824.1%51.1%
A27English, three knights system54927.7%52.8%
A28English, Bradley Beach variation19329.0%44.0%
A28English, Nenarokov variation7932.9%45.6%
A28English, four knights system66126.0%52.5%
A28English, four knights, 4.e3146328.3%51.5%
A28English, four knights, Capablanca variation51029.4%52.5%
A28English, four knights, Marini variation145931.7%53.8%
A28English, four knights, Nimzovich variation168930.1%52.0%
A28English, four knights, Romanishin variation119734.1%50.2%
A28English, four knights, Stean variation17624.4%56.0%
A29English, four knights, kingside fianchetto1823730.8%51.6%
A30English, symmetrical variation884429.3%53.9%
A30English, symmetrical, hedgehog system823331.9%55.6%
A30English, symmetrical, hedgehog, flexible formation59036.1%57.4%
A31English, symmetrical, Benoni formation232828.1%54.6%
A32English, symmetrical variation94629.4%52.2%
A33English, symmetrical variation489234.6%52.3%
A33English, symmetrical, Geller variation340530.3%52.4%
A34English, symmetrical variation193526.9%50.7%
A34English, symmetrical, Rubinstein system37132.9%53.1%
A34English, symmetrical, three knights system255435.1%52.5%
A35English, symmetrical variation39128.4%57.2%
A35English, symmetrical, four knights system443230.1%52.8%
A36English, symmetrical variation17526.3%49.7%
A36English, symmetrical, Botvinnik system74627.5%55.0%
A36English, symmetrical, Botvinnik system reversed15927.7%50.3%
A36English, ultra-symmetrical variation225327.8%48.9%
A37English, symmetrical variation99229.4%52.8%
A37English, symmetrical, Botvinnik system reversed74527.7%51.4%
A38English, symmetrical variation76429.2%52.9%
A38English, symmetrical, main line with b31136.4%36.4%
A38English, symmetrical, main line with d316735.9%50.9%
A39English, symmetrical, main line with d4130136.7%55.0%
A40Beefeater defence3625.0%59.7%
A40Modern defence223024.9%56.5%
A40Polish defence35525.4%57.2%
A40Queen's pawn567826.1%53.6%
A40Queen's pawn, Charlick (Englund) gambit60.0%83.3%
A40Queen's pawn, English defence67421.8%56.3%
A40Queen's pawn, Franco-Indian (Keres) defence371828.4%55.7%
A40Queen's pawn, Keres defence389627.6%55.8%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence83727.0%57.0%
A41Modern defence10528.6%55.2%
A41Old Indian defence347725.7%50.8%
A41Old Indian, Tartakower (Wade) variation347724.4%58.5%
A41Queen's Pawn494623.4%56.2%
A41Robatsch defence, Rossolimo variation18627.4%54.0%
A42Modern defence, Averbakh system108929.2%57.1%
A42Modern defence, Averbakh system, Kotov variation80024.0%57.9%
A42Modern defence, Averbakh system, Randspringer variation728.6%28.6%
A42Pterodactyl defence111427.2%61.6%
A43Hawk (Habichd) defence425.0%37.5%
A43Old Benoni defence268026.2%55.6%
A43Old Benoni, Franco-Benoni defence17326.6%62.4%
A43Old Benoni, Mujannah formation13721.2%63.9%
A43Old Benoni, Schmid's system2630.8%50.0%
A43Woozle defence4015.0%50.0%
A44Old Benoni defence6225.8%66.1%
A44Semi-Benoni (`blockade variation')124021.4%62.0%
A45Blackmar-Diemer gambit17227.3%54.4%
A45Canard opening2718.5%50.0%
A45Paleface attack19119.9%41.4%
A45Queen's pawn game552326.4%51.4%
A45Queen's pawn, Bronstein gambit1711.8%47.1%
A45Trompovsky attack (Ruth, Opovcensky opening)781624.9%51.7%
A46Doery defence250.0%25.0%
A46Queen's pawn game638627.8%54.0%
A46Queen's pawn, Torre attack142226.7%52.1%
A46Queen's pawn, Torre attack, Wagner gambit2920.7%37.9%
A46Queen's pawn, Yusupov-Rubinstein system132430.6%51.1%
A47Queen's Indian defence98328.1%53.5%
A47Queen's Indian, Marienbad system14730.6%49.3%
A47Queen's Indian, Marienbad system, Berg variation922.2%55.6%
A48King's Indian, East Indian defence168729.4%53.4%
A48King's Indian, London system111728.7%51.8%
A48King's Indian, Torre attack187229.4%50.1%
A49King's Indian, fianchetto without c4232828.4%53.9%
A50Kevitz-Trajkovich defence120927.1%53.8%
A50Queen's Indian accelerated34929.2%57.9%
A50Queen's pawn game206428.9%55.6%
A51Budapest defence declined6025.0%54.2%
A51Budapest, Fajarowicz variation13527.4%61.9%
A51Budapest, Fajarowicz, Steiner variation3100.0%50.0%
A52Budapest defence7724.7%55.2%
A52Budapest, Adler variation71331.0%59.0%
A52Budapest, Alekhine variation6822.1%47.8%
A52Budapest, Alekhine, Abonyi variation5028.0%60.0%
A52Budapest, Rubinstein variation79636.8%58.7%
A53Old Indian defence185229.3%55.3%
A53Old Indian, Janowski variation71220.2%58.7%
A54Old Indian, Dus-Khotimirsky variation812.5%68.8%
A54Old Indian, Ukrainian variation20830.8%51.4%
A54Old Indian, Ukrainian variation, 4.Nf332326.3%54.6%
A55Old Indian, main line125526.9%62.7%
A56Benoni defence163526.7%58.7%
A56Benoni defence, Hromodka system113721.1%58.6%
A56Czech Benoni defence81524.7%61.8%
A56Czech Benoni, King's Indian system38520.0%60.4%
A56Vulture defence30.0%33.3%
A57Benko gambit123025.2%54.5%
A57Benko gambit half accepted125829.6%57.8%
A57Benko gambit, Nescafe Frappe attack120.0%33.3%
A57Benko gambit, Zaitsev system7927.8%51.9%
A58Benko gambit accepted85931.1%55.2%
A58Benko gambit, Nd2 variation1631.3%46.9%
A58Benko gambit, fianchetto variation39929.8%55.3%
A59Benko gambit8632.6%64.0%
A59Benko gambit, 7.e41435.7%67.9%
A59Benko gambit, Ne2 variation1428.6%64.3%
A59Benko gambit, main line99234.1%62.6%
A60Benoni defence23927.2%53.3%
A61Benoni defence74824.9%58.6%
A61Benoni, Nimzovich (knight's tour) variation71927.4%57.2%
A61Benoni, Uhlmann variation11029.1%50.9%
A61Benoni, fianchetto variation6825.0%53.7%
A62Benoni, fianchetto variation161322.8%55.4%
A63Benoni, fianchetto, 9...Nbd712925.6%59.3%
A64Benoni, fianchetto, 11...Re818926.5%52.9%
A65Benoni, 6.e420123.4%60.0%
A66Benoni, Mikenas variation450.0%50.0%
A66Benoni, pawn storm variation666.7%66.7%
A67Benoni, Taimanov variation46119.5%57.9%
A68Benoni, four pawns attack140.0%42.9%
A69Benoni, four pawns attack, main line9532.6%42.6%
A70Benoni, classical with e4 and Nf3162326.6%59.0%
A70Benoni, classical without 9.O-O922.2%77.8%
A71Benoni, classical, 8.Bg513525.9%53.7%
A72Benoni, classical without 9.O-O12528.0%60.4%
A73Benoni, classical, 9.O-O28324.4%53.9%
A74Benoni, classical, 9...a6, 10.a43033.3%53.3%
A75Benoni, classical with ...a6 and 10...Bg416229.0%53.4%
A76Benoni, classical, 9...Re813215.9%59.5%
A77Benoni, classical, 9...Re8, 10.Nd241524.6%56.1%
A78Benoni, classical with ...Re8 and ...Na68734.5%54.0%
A79Benoni, classical, 11.f320421.1%66.4%
A80Dutch846326.3%54.0%
A80Dutch, 2.Bg5 variation253622.9%53.4%
A80Dutch, Korchnoi attack10631.1%53.3%
A80Dutch, Krejcik gambit19631.6%44.9%
A80Dutch, Manhattan (Alapin, Ulvestad) variation12322.8%55.3%
A80Dutch, Spielmann gambit333.3%16.7%
A80Dutch, Von Pretzel gambit333.3%16.7%
A81Dutch defence738328.6%56.2%
A81Dutch defence, Blackburne variation8531.8%61.8%
A81Dutch, Leningrad, Karlsbad variation742.9%64.3%
A82Dutch, Balogh defence1323.1%50.0%
A82Dutch, Staunton gambit16530.9%40.9%
A82Dutch, Staunton gambit, Tartakower variation1618.8%53.1%
A83Dutch, Staunton gambit, Alekhine variation1931.6%63.2%
A83Dutch, Staunton gambit, Chigorin variation5832.8%68.1%
A83Dutch, Staunton gambit, Lasker variation1323.1%50.0%
A83Dutch, Staunton gambit, Nimzovich variation714.3%50.0%
A83Dutch, Staunton gambit, Staunton's line24726.3%46.8%
A84Dutch defence174225.9%56.4%
A84Dutch defence, Rubinstein variation66728.2%56.8%
A84Dutch, Staunton gambit deferred1625.0%37.5%
A85Dutch with c4 & Nc358632.9%55.9%
A86Dutch with c4 & g320927.3%62.4%
A86Dutch, Hort-Antoshin system40.0%75.0%
A86Dutch, Leningrad variation21131.3%60.2%
A87Dutch, Leningrad, main variation83328.1%59.4%
A88Dutch, Leningrad, main variation with c6229531.1%56.5%
A89Dutch, Leningrad, main variation with Nc6150128.3%57.7%
A90Dutch defence208326.0%55.9%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation49428.1%60.8%
A90Dutch-Indian, Alekhine variation11230.4%49.1%
A91Dutch defence21433.2%53.0%
A92Dutch defence12132.2%59.9%
A92Dutch defence, Alekhine variation12130.6%58.3%
A92Dutch, stonewall variation35426.6%58.8%
A92Dutch, stonewall with Nc39028.9%60.0%
A93Dutch, stonewall, Botwinnik variation27528.4%60.0%
A94Dutch, stonewall with Ba318835.6%54.0%
A95Dutch, stonewall with Nc347626.5%54.2%
A95Dutch, stonewall: Chekhover variation5036.0%56.0%
A96Dutch, classical variation56930.9%61.5%
A97Dutch, Ilyin-Genevsky variation5429.6%63.0%
A97Dutch, Ilyin-Genevsky, Winter variation19135.1%64.7%
A98Dutch, Ilyin-Genevsky variation with Qc219627.0%60.5%
A99Dutch, Ilyin-Genevsky variation with b351125.2%59.4%
B00Barnes defence1816.7%63.9%
B00Carr's defence6524.6%53.8%
B00Corn stalk defence1136.4%81.8%
B00Fred80.0%87.5%
B00Guatemala defence10.0%100.0%
B00KP, Colorado counter1631.3%59.4%
B00KP, Nimzovich defence269024.2%57.7%
B00KP, Nimzovich defence, Bogolyubov variation28118.1%56.0%
B00KP, Nimzovich defence, Marshall gambit616.7%41.7%
B00King's pawn opening305526.0%53.8%
B00Owen defence87626.5%56.5%
B00Reversed Grob (Borg/Basman defence/macho Grob)17616.5%52.6%
B00St. George (Baker) defence18721.9%53.7%
B01Scandinavian (centre counter) defence534927.6%60.1%
B01Scandinavian defence167030.2%57.5%
B01Scandinavian defence, Gruenfeld variation1540.0%53.3%
B01Scandinavian defence, Lasker variation15227.6%64.5%
B01Scandinavian gambit19531.3%46.4%
B01Scandinavian, Anderssen counter-attack250.0%75.0%
B01Scandinavian, Anderssen counter-attack, Goteborg system50.0%100.0%
B01Scandinavian, Icelandic gambit7731.2%49.4%
B01Scandinavian, Kiel variation714.3%78.6%
B01Scandinavian, Marshall variation98329.0%59.9%
B01Scandinavian, Mieses-Kotrvc gambit267.7%50.0%
B01Scandinavian, Pytel-Wade variation318733.0%60.0%
B01Scandinavian, Richter variation1926.3%71.1%
B02Alekhine's defence60332.5%55.4%
B02Alekhine's defence, Brooklyn defence8721.8%61.5%
B02Alekhine's defence, Kmoch variation60.0%50.0%
B02Alekhine's defence, Krejcik variation1827.8%36.1%
B02Alekhine's defence, Maroczy variation27023.0%47.4%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation2722.2%63.0%
B02Alekhine's defence, Saemisch attack27223.2%59.0%
B02Alekhine's defence, Scandinavian variation41527.7%56.5%
B02Alekhine's defence, Spielmann variation1631.3%59.4%
B02Alekhine's defence, Steiner variation825.0%37.5%
B02Alekhine's defence, Two pawns' (Lasker's) attack15841.8%47.5%
B02Alekhine's defence, Two pawns' attack, Mikenas variation250.0%75.0%
B02Alekhine's defence, Welling variation3327.3%40.9%
B03Alekhine's defence79024.1%53.8%
B03Alekhine's defence, Balogh variation4320.9%59.3%
B03Alekhine's defence, O'Sullivan gambit166.3%59.4%
B03Alekhine's defence, exchange variation84732.1%58.4%
B03Alekhine's defence, exchange, Karpov variation540.0%40.0%
B03Alekhine's defence, four pawns attack9931.3%59.1%
B03Alekhine's defence, four pawns attack, 6...Nc67320.5%52.7%
B03Alekhine's defence, four pawns attack, 7.Be318529.2%64.3%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.20.0%50.0%
B03Alekhine's defence, four pawns attack, Planinc variation425.0%87.5%
B03Alekhine's defence, four pawns attack, Tartakower variation250.0%75.0%
B03Alekhine's defence, four pawns attack, Trifunovic variation7425.7%65.5%
B03Alekhine's defence, four pawns attack, fianchetto variation5438.9%63.9%
B04Alekhine's defence, modern variation41923.2%61.5%
B04Alekhine's defence, modern, Keres variation18933.3%62.7%
B04Alekhine's defence, modern, Larsen variation141132.1%57.4%
B04Alekhine's defence, modern, Schmid variation13929.5%65.8%
B04Alekhine's defence, modern, fianchetto variation95931.1%55.1%
B05Alekhine's defence, modern variation, 4...Bg497529.5%64.4%
B05Alekhine's defence, modern, Alekhine variation650.0%58.3%
B05Alekhine's defence, modern, Flohr variation43029.3%65.1%
B05Alekhine's defence, modern, Panov variation2035.0%67.5%
B05Alekhine's defence, modern, Vitolins attack850.0%25.0%
B06Norwegian defence250.0%75.0%
B06Robatsch (modern) defence1039229.4%56.4%
B06Robatsch defence134228.4%58.8%
B06Robatsch defence, Gurgenidze variation88022.8%63.6%
B06Robatsch defence, Pseudo-Austrian attack101625.5%59.1%
B06Robatsch defence, Two knights variation59930.4%57.9%
B06Robatsch defence, Two knights, Suttles variation248834.3%58.3%
B06Robatsch defence, three pawns attack10016.0%55.0%
B07Pirc defence300125.9%54.5%
B07Pirc, 150 attack64028.9%53.7%
B07Pirc, Byrne variation45424.4%55.8%
B07Pirc, Chinese variation20.0%50.0%
B07Pirc, Holmov system4729.8%53.2%
B07Pirc, Sveshnikov system117226.8%52.1%
B07Pirc, Ufimtsev-Pytel variation88323.8%55.8%
B07Pirc, bayonet (Mariotti) attack5320.8%53.8%
B07Robatsch defence, Geller's system157329.9%57.0%
B08Pirc, classical (two knights) system95728.7%56.2%
B08Pirc, classical system, 5.Be2513231.5%58.4%
B08Pirc, classical, h3 system69629.9%56.0%
B09Pirc, Austrian attack80028.1%58.8%
B09Pirc, Austrian attack, 6.Bd3427230.6%57.7%
B09Pirc, Austrian attack, 6.Be379725.7%55.3%
B09Pirc, Austrian attack, 6.e531228.8%59.3%
B09Pirc, Austrian attack, Ljubojevic variation1723.5%70.6%
B09Pirc, Austrian attack, dragon formation123930.9%53.7%
B10Caro-Kann defence605424.9%53.6%
B10Caro-Kann, Goldman (Spielmann) variation11522.6%48.7%
B10Caro-Kann, Hillbilly attack3735.1%58.1%
B10Caro-Kann, Two knights variation92827.6%55.6%
B10Caro-Kann, anti-Caro-Kann defence134426.4%56.5%
B10Caro-Kann, anti-anti-Caro-Kann defence239133.7%51.8%
B10Caro-Kann, closed (Breyer) variation191424.6%50.6%
B11Caro-Kann, Two knights, 3...Bg4168024.9%53.8%
B12Caro-Kann defence194022.1%57.2%
B12Caro-Kann, 3.Nd248726.7%59.5%
B12Caro-Kann, Edinburgh variation5520.0%70.0%
B12Caro-Kann, Tartakower (fantasy) variation105627.3%55.2%
B12Caro-Kann, advance variation2383824.7%54.4%
B12Caro-Kann, advance, Short variation9819.4%65.8%
B12Caro-Masi defence1414.3%50.0%
B12de Bruycker defence2330.4%50.0%
B13Caro-Kann, Panov-Botvinnik attack191132.6%53.6%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation4045.0%60.0%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1136.4%45.5%
B13Caro-Kann, Panov-Botvinnik, Herzog defence2326.1%52.2%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation425.0%87.5%
B13Caro-Kann, Panov-Botvinnik, normal variation25836.0%48.6%
B13Caro-Kann, exchange variation112027.2%50.8%
B13Caro-Kann, exchange, Rubinstein variation22633.2%55.1%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6673433.2%55.2%
B14Caro-Kann, Panov-Botvinnik attack, 5...g647538.5%53.8%
B15Caro-Kann defence62025.0%49.8%
B15Caro-Kann, Alekhine gambit3250.0%53.1%
B15Caro-Kann, Forgacs variation12236.1%54.9%
B15Caro-Kann, Gurgenidze counter-attack3116.1%59.7%
B15Caro-Kann, Gurgenidze system53928.9%57.3%
B15Caro-Kann, Rasa-Studier gambit1330.8%38.5%
B15Caro-Kann, Tartakower (Nimzovich) variation154632.6%52.8%
B16Caro-Kann, Bronstein-Larsen variation77424.5%61.6%
B17Caro-Kann, Steinitz variation551729.0%53.8%
B18Caro-Kann, classical variation207530.4%55.0%
B18Caro-Kann, classical, 6.h4267830.7%53.6%
B18Caro-Kann, classical, Flohr variation10437.5%59.1%
B18Caro-Kann, classical, Maroczy attack742.9%64.3%
B19Caro-Kann, classical, 7...Nd793125.0%52.0%
B19Caro-Kann, classical, Spassky variation926627.7%57.4%
B20Sicilian defence652624.1%48.4%
B20Sicilian, Gloria variation1020.0%50.0%
B20Sicilian, Keres variation (2.Ne2)119825.8%52.6%
B20Sicilian, Steinitz variation126625.5%54.0%
B20Sicilian, wing gambit9123.1%46.7%
B20Sicilian, wing gambit, Carlsbad variation2714.8%59.3%
B20Sicilian, wing gambit, Marshall variation46126.5%40.1%
B20Sicilian, wing gambit, Santasiere variation250.0%75.0%
B21Sicilian, Andreaschek gambit1844.4%61.1%
B21Sicilian, Grand Prix attack233025.5%49.4%
B21Sicilian, Smith-Morra gambit113228.5%50.0%
B22Sicilian, 2.c3, Heidenfeld variation4926.5%43.9%
B22Sicilian, Alapin's variation (2.c3)1840131.9%54.1%
B23Sicilian, Grand Prix attack59726.5%52.6%
B23Sicilian, Grand Prix attack, Schofman variation1827.8%30.6%
B23Sicilian, chameleon variation137428.0%55.6%
B23Sicilian, closed615126.9%53.0%
B23Sicilian, closed, 2...Nc6369827.7%53.2%
B23Sicilian, closed, Korchnoi variation38232.5%48.2%
B24Sicilian, closed63527.7%49.1%
B24Sicilian, closed, Smyslov variation1435.7%75.0%
B25Sicilian, closed26731.1%50.0%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)9919.2%53.0%
B25Sicilian, closed, 6.f490829.1%50.6%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)10624.5%47.2%
B26Sicilian, closed, 6.Be358225.8%48.3%
B27Sicilian defence11230.4%59.8%
B27Sicilian, Acton extension1323.1%57.7%
B27Sicilian, Hungarian variation1040333.7%57.2%
B27Sicilian, Katalimov variation18224.7%55.2%
B27Sicilian, Quinteros variation9818.4%59.2%
B27Sicilian, Stiletto (Althouse) variation1414.3%71.4%
B28Sicilian, O'Kelly variation87928.9%56.5%
B29Sicilian, Nimzovich-Rubinstein variation61330.5%56.4%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit7236.1%56.9%
B30Sicilian defence456529.1%52.0%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)716729.2%54.8%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)431429.9%55.7%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation1931.6%47.4%
B32Sicilian defence112929.1%51.9%
B32Sicilian, Flohr variation15028.7%56.3%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation187129.8%53.9%
B32Sicilian, Labourdonnais-Loewenthal variation38530.1%54.3%
B32Sicilian, Nimzovich variation2814.3%53.6%
B33Sicilian defence112129.0%52.6%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation127424.5%53.7%
B33Sicilian, Pelikan, Bird variation33526.3%60.0%
B33Sicilian, Pelikan, Chelyabinsk variation596427.1%55.3%
B33Sicilian, Sveshnikov variation324026.7%52.9%
B34Sicilian, accelerated fianchetto, exchange variation2733.3%42.6%
B34Sicilian, accelerated fianchetto, modern variation137332.6%51.5%
B35Sicilian, accelerated fianchetto, modern variation with Bc4498834.0%53.8%
B36Sicilian, accelerated fianchetto, Gurgenidze variation37538.4%53.9%
B36Sicilian, accelerated fianchetto, Maroczy bind144735.5%55.6%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg733334.8%52.6%
B37Sicilian, accelerated fianchetto, Simagin variation1030.0%45.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3295538.7%57.2%
B39Sicilian, accelerated fianchetto, Breyer variation151933.1%60.9%
B40Sicilian defence919329.1%52.8%
B40Sicilian, Anderssen variation248631.8%55.2%
B40Sicilian, Marshall variation2416.7%41.7%
B40Sicilian, Pin variation (Sicilian counter-attack)15122.5%54.3%
B40Sicilian, Pin, Jaffe variation50.0%80.0%
B40Sicilian, Pin, Koch variation16624.7%68.4%
B41Sicilian, Kan variation28129.2%54.8%
B41Sicilian, Kan, Maroczy bind (Reti variation)97528.8%54.8%
B41Sicilian, Kan, Maroczy bind - Bronstein variation5928.8%56.8%
B42Sicilian, Kan, 5.Bd3465529.4%56.9%
B42Sicilian, Kan, Gipslis variation19528.7%56.9%
B42Sicilian, Kan, Polugaievsky variation297026.8%54.4%
B42Sicilian, Kan, Swiss cheese variation30727.7%56.5%
B43Sicilian, Kan, 5.Nc3677529.0%54.9%
B44Sicilian defence43529.7%53.0%
B44Sicilian, Szen (`anti-Taimanov') variation100631.5%51.2%
B44Sicilian, Szen variation, Dely-Kasparov gambit2441.7%54.2%
B44Sicilian, Szen, hedgehog variation41830.6%48.3%
B45Sicilian, Taimanov variation504227.4%54.4%
B45Sicilian, Taimanov, American attack2157.1%42.9%
B46Sicilian, Taimanov variation574628.9%54.8%
B47Sicilian, Taimanov (Bastrikov) variation1132030.8%54.5%
B48Sicilian, Taimanov variation738728.0%54.1%
B49Sicilian, Taimanov variation264331.2%55.5%
B50Sicilian547628.1%52.6%
B50Sicilian, wing gambit deferred3619.4%45.8%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack296930.1%55.6%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7162834.8%50.1%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit16627.1%43.1%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation138233.4%53.4%
B53Sicilian, Chekhover variation107637.4%50.3%
B53Sicilian, Chekhover, Zaitsev variation5523.6%55.5%
B54Sicilian119927.3%54.1%
B54Sicilian, Prins (Moscow) variation48030.8%52.7%
B55Sicilian, Prins variation, Venice attack12137.2%56.6%
B56Sicilian535426.3%54.5%
B56Sicilian, Venice attack66534.3%63.0%
B57Sicilian, Magnus Smith trap4327.9%53.5%
B57Sicilian, Sozin, Benko variation523329.4%51.0%
B57Sicilian, Sozin, not Scheveningen57930.6%54.5%
B58Sicilian, Boleslavsky variation89133.1%49.0%
B58Sicilian, Boleslavsky, Louma variation4628.3%55.4%
B58Sicilian, classical75635.1%51.7%
B59Sicilian, Boleslavsky variation, 7.Nb316139.8%54.0%
B60Sicilian, Richter-Rauzer160026.3%56.4%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2937.9%53.4%
B60Sicilian, Richter-Rauzer, Larsen variation35924.8%54.7%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd261327.9%60.4%
B62Sicilian, Richter-Rauzer, 6...e618626.3%48.1%
B62Sicilian, Richter-Rauzer, Keres variation56231.0%53.7%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation54132.9%49.9%
B62Sicilian, Richter-Rauzer, Podvebrady variation4134.1%51.2%
B62Sicilian, Richter-Rauzer, Richter attack10.0%0.0%
B63Sicilian, Richter-Rauzer, Rauzer attack50326.8%57.0%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7219127.9%52.3%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f463432.8%54.4%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation244.2%72.9%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4155230.8%56.9%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a61538024.8%51.2%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7739125.2%52.5%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be724828.2%56.5%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf645023.8%57.2%
B70Sicilian, dragon variation80530.2%50.2%
B71Sicilian, dragon, Levenfish variation9536.8%46.8%
B71Sicilian, dragon, Levenfish; Flohr variation812.5%56.3%
B72Sicilian, dragon, 6.Be328428.5%51.2%
B72Sicilian, dragon, classical attack11332.7%55.3%
B72Sicilian, dragon, classical, Amsterdam variation6338.1%44.4%
B72Sicilian, dragon, classical, Grigoriev variation1145.5%68.2%
B72Sicilian, dragon, classical, Nottingham variation8930.3%45.5%
B73Sicilian, dragon, classical, 8.O-O24437.7%56.1%
B73Sicilian, dragon, classical, Richter variation21536.3%49.3%
B73Sicilian, dragon, classical, Zollner gambit2035.0%22.5%
B74Sicilian, dragon, classical, 9.Nb326437.9%50.0%
B74Sicilian, dragon, classical, Alekhine variation3522.9%62.9%
B74Sicilian, dragon, classical, Reti-Tartakower variation20334.5%52.2%
B74Sicilian, dragon, classical, Spielmann variation6628.8%53.8%
B75Sicilian, dragon, Yugoslav attack41528.9%52.3%
B76Sicilian, dragon, Yugoslav attack, 7...O-O64229.1%52.1%
B76Sicilian, dragon, Yugoslav attack, Rauser variation141826.7%59.4%
B77Sicilian, dragon, Yugoslav attack, 9...Bd746625.5%55.3%
B77Sicilian, dragon, Yugoslav attack, 9.Bc49630.2%53.6%
B77Sicilian, dragon, Yugoslav attack, Byrne variation50.0%80.0%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O112424.1%54.4%
B79Sicilian, dragon, Yugoslav attack, 12.h414531.0%64.5%
B80Sicilian, Scheveningen variation144323.8%53.6%
B80Sicilian, Scheveningen, English variation62624.6%51.1%
B80Sicilian, Scheveningen, Vitolins variation11318.6%43.8%
B80Sicilian, Scheveningen, fianchetto variation53428.1%51.5%
B81Sicilian, Scheveningen, Keres attack481626.0%58.8%
B82Sicilian, Scheveningen, 6.f481329.8%55.6%
B82Sicilian, Scheveningen, Tal variation19919.1%59.8%
B83Sicilian, Scheveningen, 6.Be285630.6%51.4%
B83Sicilian, modern Scheveningen86730.6%50.3%
B83Sicilian, modern Scheveningen, main line71536.1%52.6%
B83Sicilian, modern Scheveningen, main line with Nb316323.9%50.0%
B84Sicilian, Scheveningen (Paulsen), classical variation972229.1%51.9%
B84Sicilian, Scheveningen, classical, Nd7 system9825.5%53.6%
B85Sicilian, Scheveningen, classical25238.5%52.6%
B85Sicilian, Scheveningen, classical main line71739.9%54.1%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc62321.7%50.0%
B85Sicilian, Scheveningen, classical, Maroczy system6833.8%55.1%
B86Sicilian, Sozin attack25827.1%45.0%
B87Sicilian, Sozin with ...a6 and ...b5139127.9%48.4%
B88Sicilian, Sozin, Fischer variation4250.0%51.2%
B88Sicilian, Sozin, Leonhardt variation72134.0%49.4%
B89Sicilian, Sozin, 7.Be3437627.0%49.1%
B89Sicilian, Velimirovic attack173024.5%51.0%
B90Sicilian, Najdorf1305024.6%51.1%
B90Sicilian, Najdorf, Adams attack296124.0%52.7%
B90Sicilian, Najdorf, Byrne (English) attack5130524.9%51.5%
B90Sicilian, Najdorf, Lipnitzky attack238829.0%48.7%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation145127.4%51.3%
B92Sicilian, Najdorf, Opovcensky variation1183229.7%52.5%
B93Sicilian, Najdorf, 6.f4258329.4%49.5%
B94Sicilian, Najdorf, 6.Bg5178025.4%53.2%
B95Sicilian, Najdorf, 6...e6172926.8%53.7%
B96Sicilian, Najdorf, 7.f4214123.3%49.3%
B96Sicilian, Najdorf, Polugayevsky variation13725.5%52.2%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation4520.0%52.2%
B97Sicilian, Najdorf, 7...Qb6277423.7%47.3%
B97Sicilian, Najdorf, Poisoned pawn variation351827.3%44.2%
B98Sicilian, Najdorf variation21424.8%49.3%
B98Sicilian, Najdorf, 7...Be727824.8%53.4%
B98Sicilian, Najdorf, Browne variation9632.3%57.8%
B98Sicilian, Najdorf, Goteborg (Argentine) variation1435.7%46.4%
B99Sicilian, Najdorf, 7...Be7 main line162622.0%54.4%
C00French defence396323.9%54.4%
C00French defence, Steiner variation112128.1%49.7%
C00French, Alapin variation4814.6%46.9%
C00French, Chigorin variation327624.8%50.9%
C00French, King's Indian attack754828.5%51.0%
C00French, Labourdonnais variation64725.5%49.2%
C00French, Pelikan variation8726.4%48.9%
C00French, Reti (Spielmann) variation29027.2%55.0%
C00French, Reversed Philidor formation8229.3%40.2%
C00French, Schlechter variation47531.6%50.7%
C00French, Steinitz attack5036.0%52.0%
C00French, Two knights variation96725.1%50.2%
C00French, Wing gambit5012.0%44.0%
C00Lengfellner system10827.8%61.1%
C00St. George defence66226.9%55.1%
C01French, exchange variation228232.6%53.3%
C01French, exchange, Bogolyubov variation922.2%33.3%
C01French, exchange, Svenonius variation6937.7%56.5%
C02French, advance variation208925.2%53.9%
C02French, advance, Euwe variation374125.2%52.5%
C02French, advance, Milner-Barry gambit12925.6%53.1%
C02French, advance, Nimzovich system32919.5%46.8%
C02French, advance, Nimzovich variation5125.5%28.4%
C02French, advance, Paulsen attack231724.3%53.3%
C02French, advance, Steinitz variation72527.9%49.9%
C02French, advance, Wade variation39727.7%54.7%
C03French, Tarrasch298929.9%56.4%
C03French, Tarrasch, Guimard variation24123.7%60.8%
C03French, Tarrasch, Haberditz variation1513.3%66.7%
C04French, Tarrasch, Guimard main line46126.2%56.5%
C05French, Tarrasch, Botvinnik variation15324.2%57.8%
C05French, Tarrasch, closed variation200824.3%57.2%
C06French, Tarrasch, Leningrad variation5117.6%53.9%
C06French, Tarrasch, closed variation, main line277932.2%55.2%
C07French, Tarrasch, Eliskases variation12736.2%50.4%
C07French, Tarrasch, open variation664432.7%52.8%
C08French, Tarrasch, open, 4.ed ed373136.9%53.2%
C09French, Tarrasch, open variation, main line222637.4%55.9%
C10French, Fort Knox variation46934.3%54.3%
C10French, Frere (Becker) variation4822.9%55.2%
C10French, Marshall variation1435.7%67.9%
C10French, Paulsen variation160527.3%56.5%
C10French, Rubinstein variation879432.9%53.5%
C10French, Rubinstein, Capablanca line2236.4%54.5%
C11French defence63226.1%49.6%
C11French, Burn variation975931.1%52.0%
C11French, Henneberger variation3138.7%32.3%
C11French, Steinitz variation187926.8%54.0%
C11French, Steinitz, Boleslavsky variation774326.2%54.6%
C11French, Steinitz, Bradford attack30.0%33.3%
C11French, Steinitz, Gledhill attack5438.9%52.8%
C11French, Swiss variation13730.7%43.8%
C12French, MacCutcheon variation30530.5%51.3%
C12French, MacCutcheon, Bernstein variation2213.6%56.8%
C12French, MacCutcheon, Bogolyubov variation616.7%75.0%
C12French, MacCutcheon, Chigorin variation5135.3%51.0%
C12French, MacCutcheon, Dr. Olland (Dutch) variation3633.3%55.6%
C12French, MacCutcheon, Duras variation366.7%66.7%
C12French, MacCutcheon, Grigoriev variation955.6%50.0%
C12French, MacCutcheon, Janowski variation18125.4%59.1%
C12French, MacCutcheon, Lasker variation47119.7%52.3%
C12French, MacCutcheon, Lasker variation, 8...g676824.9%54.4%
C12French, MacCutcheon, Tartakower variation450.0%50.0%
C12French, MacCutcheon, advance variation1241.7%54.2%
C13French, Albin-Alekhine-Chatard attack45621.9%57.0%
C13French, Albin-Alekhine-Chatard attack, Breyer variation9228.3%55.4%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation728.6%28.6%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation6328.6%57.1%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation922.2%88.9%
C13French, classical2512.0%54.0%
C13French, classical, Anderssen variation4621.7%39.1%
C13French, classical, Anderssen-Richter variation1315.4%30.8%
C13French, classical, Frankfurt variation1618.8%84.4%
C13French, classical, Tartakower variation2626.9%55.8%
C13French, classical, Vistaneckis (Nimzovich) variation40.0%75.0%
C14French, classical variation2412.5%22.9%
C14French, classical, Alapin variation9537.9%58.9%
C14French, classical, Pollock variation1612.5%43.8%
C14French, classical, Rubinstein variation5320.8%55.7%
C14French, classical, Stahlberg variation450.0%75.0%
C14French, classical, Steinitz variation98526.8%57.9%
C14French, classical, Tarrasch variation850.0%62.5%
C15French, Winawer (Nimzovich) variation136432.1%53.1%
C15French, Winawer, Alekhine (Maroczy) gambit40031.0%56.5%
C15French, Winawer, Alekhine gambit70.0%71.4%
C15French, Winawer, Alekhine gambit, Alatortsev variation1100.0%50.0%
C15French, Winawer, Alekhine gambit, Kan variation20034.0%49.0%
C15French, Winawer, Kondratiyev variation1442.9%64.3%
C15French, Winawer, fingerslip variation3920.5%59.0%
C16French, Winawer, Petrosian variation41325.2%54.0%
C16French, Winawer, advance variation117225.2%56.7%
C17French, Winawer, advance variation10025.0%60.5%
C17French, Winawer, advance, 5.a378125.5%57.3%
C17French, Winawer, advance, Bogolyubov variation30929.1%56.3%
C17French, Winawer, advance, Rauzer variation955.6%50.0%
C17French, Winawer, advance, Russian variation7427.0%48.6%
C18French, Winawer, advance variation80420.9%57.7%
C18French, Winawer, classical variation81921.2%56.5%
C19French, Winawer, advance, 6...Ne788526.2%59.7%
C19French, Winawer, advance, Smyslov variation26725.8%59.0%
C19French, Winawer, advance, poisoned pawn variation518724.3%58.9%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation1450.0%53.6%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation128425.7%60.3%
C19French, Winawer, advance, positional main line288023.5%57.6%
C20Alapin's opening11023.6%48.2%
C20KP, Indian opening25027.2%50.4%
C20KP, King's head opening1631.3%59.4%
C20KP, Lopez opening6235.5%45.2%
C20KP, Mengarini's opening7817.9%56.4%
C20KP, Napoleon's opening1540.0%53.3%
C20KP, Patzer opening2931.0%56.9%
C20King's pawn game29120.3%52.1%
C21Centre game29833.2%57.2%
C21Danish gambit6731.3%54.5%
C21Danish gambit, Collijn defence30.0%33.3%
C21Danish gambit, Soerensen defence3627.8%52.8%
C21Halasz gambit4727.7%39.4%
C22Centre game2626.9%55.8%
C22Centre game, Berger variation40426.5%53.6%
C22Centre game, Charousek variation714.3%50.0%
C22Centre game, Hall variation1533.3%43.3%
C22Centre game, Paulsen attack11435.1%49.1%
C23Bishop's opening39323.9%53.2%
C23Bishop's opening, Calabrese counter-gambit250.0%25.0%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation1711.8%64.7%
C23Bishop's opening, Classical variation11619.0%50.9%
C23Bishop's opening, Lewis counter-gambit633.3%50.0%
C23Bishop's opening, Lewis gambit540.0%40.0%
C23Bishop's opening, Philidor counter-attack10634.9%59.0%
C23Bishop's opening, Philidor variation1926.3%55.3%
C24Bishop's opening, Berlin defence147927.9%52.2%
C24Bishop's opening, Ponziani gambit2128.6%38.1%
C24Bishop's opening, Urusov gambit3125.8%45.2%
C24Bishop's opening, Urusov gambit, Panov variation616.7%58.3%
C25Vienna gambit7327.4%53.4%
C25Vienna game76325.4%52.3%
C25Vienna game, Max Lange defence7223.6%46.5%
C25Vienna, Hamppe-Allgaier gambit520.0%30.0%
C25Vienna, Paulsen variation70523.0%50.9%
C25Vienna, Pierce gambit1816.7%36.1%
C25Vienna, Steinitz gambit540.0%60.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation714.3%50.0%
C25Vienna, Steinitz gambit, Zukertort defence1100.0%50.0%
C26Vienna game35727.2%53.9%
C26Vienna, Falkbeer variation14117.0%51.1%
C26Vienna, Mengarini variation3735.1%58.1%
C26Vienna, Paulsen-Mieses variation112030.9%51.5%
C27Boden-Kieseritsky gambit6016.7%50.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence633.3%33.3%
C27Vienna game29825.5%50.3%
C27Vienna, Alekhine variation11326.5%42.5%
C27Vienna, `Frankenstein-Dracula' variation4226.2%56.0%
C28Vienna game39129.9%51.3%
C29Vienna gambit26930.1%49.3%
C29Vienna gambit, Bardeleben variation1428.6%28.6%
C29Vienna gambit, Breyer variation14634.9%55.1%
C29Vienna gambit, Heyde variation10.0%0.0%
C29Vienna gambit, Kaufmann variation1338.5%65.4%
C29Vienna gambit, Paulsen attack3636.1%56.9%
C29Vienna gambit, Steinitz variation3125.8%48.4%
C30KGD, 2...Nf66426.6%52.3%
C30KGD, Keene's defence4924.5%49.0%
C30KGD, Mafia defence14325.2%64.3%
C30KGD, Norwalde variation1428.6%50.0%
C30KGD, classical counter-gambit616.7%58.3%
C30KGD, classical variation24621.5%46.5%
C30KGD, classical, 4.c316426.2%61.3%
C30KGD, classical, Hanham variation250.0%25.0%
C30KGD, classical, Heath variation366.7%33.3%
C30KGD, classical, Marshall attack1127.3%50.0%
C30KGD, classical, Reti variation616.7%75.0%
C30KGD, classical, Soldatenkov variation1323.1%57.7%
C30KGD, classical, Svenonius variation520.0%50.0%
C30King's gambit19728.9%56.6%
C31KGD, Falkbeer counter-gambit8022.5%50.0%
C31KGD, Falkbeer, 3...e41020.0%50.0%
C31KGD, Falkbeer, 4.d31931.6%68.4%
C31KGD, Falkbeer, Morphy gambit742.9%64.3%
C31KGD, Falkbeer, Nimzovich variation70.0%42.9%
C31KGD, Falkbeer, Rubinstein variation650.0%58.3%
C31KGD, Falkbeer, Tartakower variation2236.4%72.7%
C31KGD, Nimzovich counter-gambit6224.2%49.2%
C32KGD, Falkbeer, 5.de4126.8%50.0%
C32KGD, Falkbeer, Charousek gambit20.0%100.0%
C32KGD, Falkbeer, Charousek variation10.0%0.0%
C32KGD, Falkbeer, Keres variation1100.0%50.0%
C32KGD, Falkbeer, Reti variation560.0%50.0%
C32KGD, Falkbeer, Tarrasch variation10.0%100.0%
C32KGD, Falkbeer, main line, 7...Bf5977.8%38.9%
C33KGA, Breyer gambit2040.0%30.0%
C33KGA, Carrera (Basman) gambit3531.4%41.4%
C33KGA, Keres (Mason-Steinitz) gambit439.3%44.2%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit229.1%45.5%
C33KGA, Lopez-Gianutio counter-gambit, Hein variation250.0%75.0%
C33KGA, Villemson (Steinitz) gambit728.6%42.9%
C33KGA, bishop's gambit15021.3%52.0%
C33KGA, bishop's gambit, Anderssen variation616.7%75.0%
C33KGA, bishop's gambit, Bledow variation5532.7%45.5%
C33KGA, bishop's gambit, Boden defence1414.3%35.7%
C33KGA, bishop's gambit, Bogolyubov variation4517.8%46.7%
C33KGA, bishop's gambit, Boren-Svenonius variation30.0%66.7%
C33KGA, bishop's gambit, Bryan counter-gambit250.0%25.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence3231.3%40.6%
C33KGA, bishop's gambit, Jaenisch variation11625.9%53.4%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit3125.8%29.0%
C33KGA, bishop's gambit, Maurian defence2927.6%48.3%
C33KGA, bishop's gambit, McDonnell attack250.0%75.0%
C33KGA, bishop's gambit, Morphy variation4825.0%47.9%
C33KGA, bishop's gambit, Paulsen attack812.5%43.8%
C33KGA, bishop's gambit, Ruy Lopez defence1050.0%45.0%
C33KGA, bishop's gambit, Steinitz defence8129.6%45.7%
C33KGA, bishop's gambit, classical defence119.1%22.7%
C33King's gambit accepted922.2%44.4%
C34KGA, Becker defence4918.4%39.8%
C34KGA, Bonsch-Osmolovsky variation4928.6%42.9%
C34KGA, Fischer defence24022.5%47.5%
C34KGA, Gianutio counter-gambit10.0%0.0%
C34KGA, Schallop defence11121.6%51.4%
C34King's knight's gambit8116.0%46.3%
C35KGA, Cunningham defence11021.8%45.5%
C35KGA, Cunningham, Bertin gambit20.0%50.0%
C35KGA, Cunningham, Euwe defence7132.4%50.0%
C36KGA, Abbazia defence (classical defence, modern defence[!])3122.6%56.5%
C36KGA, Abbazia defence, Botvinnik variation20.0%100.0%
C36KGA, Abbazia defence, modern variation22733.5%44.9%
C37KGA, Blachly gambit2520.0%30.0%
C37KGA, Ghulam Kassim gambit10.0%0.0%
C37KGA, King's knight's gambit30.0%33.3%
C37KGA, Lolli gambit (wild Muzio gambit)1100.0%50.0%
C37KGA, MacDonnell gambit250.0%75.0%
C37KGA, Muzio gambit119.1%13.6%
C37KGA, Quaade gambit137.7%11.5%
C37KGA, Rosentreter gambit333.3%83.3%
C37KGA, Salvio gambit1225.0%45.8%
C37KGA, Salvio gambit, Anderssen counter-attack30.0%33.3%
C37KGA, Silberschmidt gambit20.0%0.0%
C37KGA, double Muzio gambit10.0%0.0%
C38KGA, Hanstein gambit2321.7%41.3%
C38KGA, Philidor gambit40.0%25.0%
C38KGA, Philidor gambit, Schultz variation50.0%20.0%
C38King's knight's gambit911.1%50.0%
C39KGA, Allgaier gambit10.0%100.0%
C39KGA, Kieseritsky, Berlin defence5815.5%38.8%
C39KGA, Kieseritsky, Berlin defence, 6.Bc45630.4%45.5%
C39KGA, Kieseritsky, Brentano (Campbell) defence20.0%100.0%
C39KGA, Kieseritsky, Kolisch defence10834.3%50.5%
C39KGA, Kieseritsky, Neumann defence616.7%58.3%
C39KGA, Kieseritsky, Paulsen defence540.0%40.0%
C39KGA, Kieseritsky, Rice gambit2250.0%25.0%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence2055.0%52.5%
C39King's knight's gambit20.0%50.0%
C40Damiano's defence2927.6%55.2%
C40Greco defence9017.8%64.4%
C40Gunderam defence24323.0%63.4%
C40King's knight opening616.7%41.7%
C40Latvian counter-gambit15324.8%60.8%
C40Latvian gambit, 3.Bc4633.3%66.7%
C40Latvian, Fraser defence147.1%53.6%
C40Latvian, Polerio variation60.0%33.3%
C40QP counter-gambit (elephant gambit)19717.8%63.7%
C40QP counter-gambit, Maroczy gambit7125.4%62.0%
C41Philidor's defence57829.8%56.1%
C41Philidor, Boden variation1910.5%52.6%
C41Philidor, Hanham variation8436.9%60.1%
C41Philidor, Hanham, Delmar variation850.0%75.0%
C41Philidor, Hanham, Kmoch variation20.0%50.0%
C41Philidor, Hanham, Krause variation3030.0%68.3%
C41Philidor, Hanham, Schlechter variation6826.5%61.8%
C41Philidor, Hanham, Steiner variation3330.3%66.7%
C41Philidor, Improved Hanham variation130227.3%56.5%
C41Philidor, Larsen variation7724.7%68.2%
C41Philidor, Lopez counter-gambit1513.3%80.0%
C41Philidor, Nimzovich (Jaenisch) variation9131.9%48.9%
C41Philidor, Nimzovich variation3138.7%54.8%
C41Philidor, Nimzovich, Klein variation128.3%62.5%
C41Philidor, Nimzovich, Larobok variation5141.2%34.3%
C41Philidor, Nimzovich, Rellstab variation10332.0%63.6%
C41Philidor, Nimzovich, Sokolsky variation520.0%50.0%
C41Philidor, Nimzovich, Sozin variation4517.8%48.9%
C41Philidor, Paulsen attack30.0%100.0%
C41Philidor, Philidor counter-gambit3016.7%51.7%
C41Philidor, Philidor counter-gambit, Zukertort variation1833.3%55.6%
C41Philidor, Philidor counter-gambit, del Rio attack540.0%60.0%
C41Philidor, Steinitz variation1421.4%53.6%
C41Philidor, exchange variation144126.5%57.9%
C42Petrov three knights game57228.3%54.5%
C42Petrov's defence94825.1%54.0%
C42Petrov, Cochrane gambit4314.0%46.5%
C42Petrov, Cozio (Lasker) attack29132.6%51.4%
C42Petrov, Damiano variation3930.8%53.8%
C42Petrov, French attack1513.3%66.7%
C42Petrov, Italian variation15519.4%51.0%
C42Petrov, Kaufmann attack30432.2%57.2%
C42Petrov, Nimzovich attack73233.5%54.2%
C42Petrov, Paulsen attack28227.0%46.5%
C42Petrov, classical attack233630.7%56.8%
C42Petrov, classical attack, Berger variation1936.8%55.3%
C42Petrov, classical attack, Chigorin variation120534.0%54.4%
C42Petrov, classical attack, Jaenisch variation389534.7%56.7%
C42Petrov, classical attack, Krause variation1100.0%50.0%
C42Petrov, classical attack, Marshall variation245229.4%55.2%
C42Petrov, classical attack, Mason variation9639.6%63.5%
C42Petrov, classical attack, Tarrasch variation933.3%83.3%
C42Petrov, classical attack, close variation20829.8%54.8%
C43Petrov, Urusov gambit468.7%45.7%
C43Petrov, modern (Steinitz) attack15524.5%60.6%
C43Petrov, modern attack, Bardeleben variation1717.6%67.6%
C43Petrov, modern attack, Steinitz variation1127.3%59.1%
C43Petrov, modern attack, Symmetrical variation538631.3%54.0%
C43Petrov, modern attack, Trifunovic variation8534.1%51.2%
C43Petrov, modern attack, main line50831.3%57.8%
C44Dresden opening5820.7%46.6%
C44Inverted Hanham4725.5%48.9%
C44Inverted Hungarian5129.4%50.0%
C44King's pawn game7126.8%47.2%
C44Konstantinopolsky opening2416.7%45.8%
C44Ponziani counter-gambit22120.4%52.3%
C44Ponziani counter-gambit, Cordel variation10.0%100.0%
C44Ponziani counter-gambit, Schmidt attack10.0%0.0%
C44Ponziani opening18325.7%54.9%
C44Ponziani, Caro variation12235.2%49.6%
C44Ponziani, Jaenisch counter-attack73031.8%47.0%
C44Ponziani, Leonhardt variation6036.7%50.0%
C44Ponziani, Reti variation166.3%53.1%
C44Ponziani, Romanishin variation1060.0%60.0%
C44Ponziani, Steinitz variation11338.9%54.0%
C44Scotch gambit10526.7%50.5%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack1100.0%50.0%
C44Scotch gambit, Benima defence6028.3%52.5%
C44Scotch gambit, Dubois-Reti defence66031.5%50.2%
C44Scotch opening6227.4%42.7%
C44Scotch, Goering gambit18631.2%50.0%
C44Scotch, Goering gambit, Bardeleben variation1020.0%40.0%
C44Scotch, Lolli variation7718.2%53.2%
C44Scotch, Relfsson gambit ('MacLopez')4012.5%46.3%
C44Tayler opening728.6%28.6%
C45Scotch game363831.8%53.4%
C45Scotch, Blackburne attack2254.5%54.5%
C45Scotch, Blumenfeld attack1040.0%20.0%
C45Scotch, Ghulam Kassim variation560.0%70.0%
C45Scotch, Horwitz attack3438.2%54.4%
C45Scotch, Meitner variation4235.7%53.6%
C45Scotch, Mieses variation211033.2%51.1%
C45Scotch, Paulsen attack1631.3%34.4%
C45Scotch, Potter variation30133.9%48.2%
C45Scotch, Pulling counter-attack3122.6%56.5%
C45Scotch, Romanishin variation3426.5%45.6%
C45Scotch, Rosenthal variation10.0%0.0%
C45Scotch, Schmidt variation102939.9%50.4%
C45Scotch, Steinitz variation5623.2%45.5%
C45Scotch, Tartakower variation1735.3%52.9%
C46Four knights game98129.6%50.4%
C46Four knights, Gunsberg variation12729.9%42.5%
C46Four knights, Italian variation41429.5%48.6%
C46Four knights, Schultze-Mueller gambit2528.0%38.0%
C46Three knights game28626.2%53.3%
C46Three knights, Schlechter variation1533.3%63.3%
C46Three knights, Steinitz variation17520.0%53.4%
C46Three knights, Steinitz, Rosenthal variation1560.0%56.7%
C47Four knights, Belgrade gambit26525.3%43.6%
C47Four knights, Scotch variation5038.0%59.0%
C47Four knights, Scotch, 4...exd479336.4%51.0%
C47Four knights, Scotch, Krause variation20233.7%53.5%
C48Four knights, Bardeleben variation728.6%57.1%
C48Four knights, Marshall variation1315.4%61.5%
C48Four knights, Ranken variation2924.1%46.6%
C48Four knights, Rubinstein counter-gambit158126.5%54.2%
C48Four knights, Rubinstein counter-gambit, 5.Be21323.1%57.7%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1631.3%53.1%
C48Four knights, Rubinstein counter-gambit, Henneberger variation4936.7%61.2%
C48Four knights, Rubinstein counter-gambit, exchange variation13342.1%48.9%
C48Four knights, Spanish variation35127.4%52.1%
C48Four knights, Spanish, classical defence17227.3%52.6%
C48Four knights, Spielmann variation633.3%50.0%
C49Four knights13435.1%50.4%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
C49Four knights, Janowski variation2138.1%38.1%
C49Four knights, Nimzovich (Paulsen) variation7744.2%53.2%
C49Four knights, Svenonius variation30.0%66.7%
C49Four knights, double Ruy Lopez34642.8%57.2%
C49Four knights, symmetrical variation52331.5%49.4%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C49Four knights, symmetrical, Capablanca variation3342.4%57.6%
C49Four knights, symmetrical, Maroczy system9138.5%53.3%
C49Four knights, symmetrical, Metger unpin49135.0%52.3%
C49Four knights, symmetrical, Pillsbury variation4725.5%42.6%
C49Four knights, symmetrical, Tarrasch variation540.0%60.0%
C50Giuoco Pianissimo201530.3%52.2%
C50Giuoco Pianissimo, Canal variation23830.3%51.3%
C50Giuoco Pianissimo, Italian four knights variation53729.2%55.4%
C50Giuoco Piano201428.8%51.0%
C50Giuoco Piano, four knights variation14228.2%51.4%
C50Hungarian defence13137.4%53.8%
C50King's pawn game38923.1%54.2%
C50Rousseau gambit50.0%60.0%
C51Evans gambit60.0%0.0%
C51Evans gambit declined2733.3%42.6%
C51Evans gambit declined, 5.a410828.7%47.7%
C51Evans gambit declined, Cordel variation1330.8%30.8%
C51Evans gambit declined, Showalter variation1838.9%47.2%
C51Evans gambit, 5...Be7966.7%33.3%
C51Evans gambit, Cordel variation13031.5%48.8%
C51Evans gambit, Goering attack1127.3%59.1%
C51Evans gambit, Morphy attack1338.5%57.7%
C51Evans gambit, Paulsen variation3611.1%44.4%
C51Evans gambit, Steinitz variation10.0%100.0%
C51Evans gambit, Stone-Ware variation6123.0%44.3%
C51Evans gambit, normal variation1233.3%41.7%
C52Evans gambit26726.2%39.0%
C52Evans gambit, Alapin-Steinitz variation450.0%75.0%
C52Evans gambit, Lasker defence1040.0%50.0%
C52Evans gambit, Leonhardt variation2100.0%50.0%
C52Evans gambit, Levenfish variation250.0%25.0%
C52Evans gambit, Richardson attack616.7%25.0%
C52Evans gambit, Tartakower attack10822.2%50.9%
C52Evans gambit, Waller attack616.7%41.7%
C52Evans gambit, compromised defence3312.1%57.6%
C52Evans gambit, compromised defence, Paulsen variation1625.0%68.8%
C53Giuoco Piano563228.0%52.6%
C53Giuoco Piano, Anderssen variation2250.0%52.3%
C53Giuoco Piano, Bird's attack14426.4%52.1%
C53Giuoco Piano, LaBourdonnais variation1942.1%63.2%
C53Giuoco Piano, Mestel variation250.0%75.0%
C53Giuoco Piano, Tarrasch variation425.0%62.5%
C53Giuoco Piano, centre-holding variation3122.6%62.9%
C53Giuoco Piano, close variation5831.0%53.4%
C54Giuoco Piano17027.1%56.5%
C54Giuoco Piano, Greco variation1100.0%50.0%
C54Giuoco Piano, Greco's attack425.0%37.5%
C54Giuoco Piano, Moeller (Therkatz) attack2544.0%38.0%
C55Giuoco piano1100.0%50.0%
C55Two knights defence16627.7%47.6%
C55Two knights defence (Modern bishop's opening)144130.3%56.3%
C55Two knights defence, Keidanz variation1100.0%50.0%
C55Two knights defence, Perreux variation3630.6%48.6%
C55Two knights, Max Lange attack10221.6%49.0%
C55Two knights, Max Lange attack, Krause variation250.0%75.0%
C55Two knights, Max Lange attack, Marshall variation450.0%50.0%
C55Two knights, Max Lange attack, Schlechter variation9434.0%47.9%
C55Two knights, Max Lange attack, Steinitz variation911.1%61.1%
C56Two knights defence7834.6%50.6%
C56Two knights defence, Canal variation2748.1%42.6%
C57Two knights defence6720.9%35.8%
C57Two knights defence, Fegatello attack7936.7%46.2%
C57Two knights defence, Fegatello attack, Leonhardt variation30.0%0.0%
C57Two knights defence, Fegatello attack, Polerio defence10.0%0.0%
C57Two knights defence, Fritz variation1233.3%50.0%
C57Two knights defence, Fritz, Gruber variation1735.3%52.9%
C57Two knights defence, Lolli attack2020.0%55.0%
C57Two knights defence, Pincus variation742.9%64.3%
C57Two knights defence, Ulvestad variation4025.0%57.5%
C57Two knights defence, Wilkes Barre (Traxler) variation7715.6%62.3%
C58Two knights defence24924.9%56.6%
C58Two knights defence, Blackburne variation450.0%75.0%
C58Two knights defence, Bogolyubov variation7219.4%55.6%
C58Two knights defence, Colman variation100.0%80.0%
C58Two knights defence, Kieseritsky variation3228.1%54.7%
C58Two knights defence, Paoli variation1118.2%81.8%
C58Two knights defence, Yankovich variation540.0%40.0%
C59Two knights defence18026.1%47.5%
C59Two knights defence, Goering variation20.0%50.0%
C59Two knights defence, Knorre variation1100.0%50.0%
C59Two knights defence, Steinitz variation19326.4%57.8%
C60Ruy Lopez (Spanish opening)16322.7%53.1%
C60Ruy Lopez, Brentano defence616.7%58.3%
C60Ruy Lopez, Cozio defence43028.8%57.9%
C60Ruy Lopez, Cozio defence, Paulsen variation3737.8%54.1%
C60Ruy Lopez, Lucena defence2321.7%45.7%
C60Ruy Lopez, Nuernberg variation1936.8%44.7%
C60Ruy Lopez, Vinogradov variation933.3%50.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence51235.2%53.1%
C61Ruy Lopez, Bird's defence39531.1%57.6%
C61Ruy Lopez, Bird's defence, Paulsen variation1631.3%46.9%
C62Ruy Lopez, old Steinitz defence65528.2%54.3%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack2817.9%69.6%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation742.9%78.6%
C63Ruy Lopez, Schliemann defence40627.8%57.3%
C63Ruy Lopez, Schliemann defence, Berger variation73634.1%56.3%
C64Ruy Lopez, Cordel gambit5626.8%70.5%
C64Ruy Lopez, classical (Cordel) defence70731.7%51.9%
C64Ruy Lopez, classical defence, 4.c345528.1%52.7%
C64Ruy Lopez, classical defence, Benelux variation 59333.4%51.1%
C64Ruy Lopez, classical defence, Boden variation1100.0%50.0%
C64Ruy Lopez, classical defence, Charousek variation2123.8%64.3%
C64Ruy Lopez, classical defence, Zaitsev variation250.0%75.0%
C65Ruy Lopez, Berlin defence538829.4%51.4%
C65Ruy Lopez, Berlin defence, 4.O-O22026.8%63.0%
C65Ruy Lopez, Berlin defence, Anderssen variation616.7%8.3%
C65Ruy Lopez, Berlin defence, Beverwijk variation59229.7%54.1%
C65Ruy Lopez, Berlin defence, Duras variation3234.4%45.3%
C65Ruy Lopez, Berlin defence, Kaufmann variation1118.2%45.5%
C65Ruy Lopez, Berlin defence, Mortimer variation1811.1%66.7%
C65Ruy Lopez, Berlin defence, Nyholm attack9335.5%53.2%
C66Ruy Lopez, Berlin defence, 4.O-O, d611140.5%54.5%
C66Ruy Lopez, Berlin defence, hedgehog variation16539.4%53.0%
C66Ruy Lopez, closed Berlin defence, Bernstein variation3438.2%45.6%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%75.0%
C66Ruy Lopez, closed Berlin defence, Showalter variation6747.8%61.2%
C66Ruy Lopez, closed Berlin defence, Wolf variation13141.2%55.7%
C67Ruy Lopez, Berlin defence, Cordel variation4637.0%59.8%
C67Ruy Lopez, Berlin defence, Minckwitz variation5738.6%63.2%
C67Ruy Lopez, Berlin defence, Pillsbury variation366.7%33.3%
C67Ruy Lopez, Berlin defence, Rio de Janeiro variation850.0%75.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation4440.9%56.8%
C67Ruy Lopez, Berlin defence, Trifunovic variation30.0%100.0%
C67Ruy Lopez, Berlin defence, Winawer attack1070.0%45.0%
C67Ruy Lopez, Berlin defence, Zukertort variation1560.0%43.3%
C67Ruy Lopez, Berlin defence, open variation887034.5%52.7%
C67Ruy Lopez, open Berlin defence, 5...Be712133.1%56.2%
C67Ruy Lopez, open Berlin defence, Showalter variation425.0%62.5%
C67Ruy Lopez, open Berlin defence, l'Hermet variation10235.3%43.1%
C68Ruy Lopez, exchange variation34125.2%56.9%
C68Ruy Lopez, exchange, Alekhine variation7732.5%43.5%
C68Ruy Lopez, exchange, Keres variation29935.8%51.3%
C68Ruy Lopez, exchange, Romanovsky variation1323.1%50.0%
C69Ruy Lopez, exchange variation, 5.O-O79930.3%54.2%
C69Ruy Lopez, exchange variation, Alapin gambit15932.1%53.1%
C69Ruy Lopez, exchange, Bronstein variation56530.4%51.7%
C69Ruy Lopez, exchange, Gligoric variation62635.8%53.8%
C70Ruy Lopez7828.2%53.8%
C70Ruy Lopez, Alapin's defence deferred70.0%42.9%
C70Ruy Lopez, Caro variation9228.3%53.3%
C70Ruy Lopez, Classical defence deferred53026.2%51.8%
C70Ruy Lopez, Cozio defence deferred16835.1%52.7%
C70Ruy Lopez, Graz variation1136.4%54.5%
C70Ruy Lopez, Schliemann defence deferred4918.4%56.1%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation26026.5%54.8%
C70Ruy Lopez, fianchetto defence deferred2748.1%61.1%
C71Ruy Lopez, modern Steinitz defence14529.0%51.7%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation20131.8%53.2%
C71Ruy Lopez, modern Steinitz defence, Three knights variation2825.0%58.9%
C72Ruy Lopez, modern Steinitz defence, 5.O-O55030.0%56.6%
C73Ruy Lopez, modern Steinitz defence, Alapin variation32727.2%54.6%
C73Ruy Lopez, modern Steinitz defence, Richter variation24932.9%51.4%
C74Ruy Lopez, Siesta, Kopayev variation13126.7%53.1%
C74Ruy Lopez, modern Steinitz defence7338.4%57.5%
C74Ruy Lopez, modern Steinitz defence, siesta variation5328.3%50.0%
C75Ruy Lopez, modern Steinitz defence32027.2%57.7%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation14833.8%58.8%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation62428.4%51.4%
C77Ruy Lopez, Anderssen variation142730.0%49.9%
C77Ruy Lopez, Morphy defence41233.3%54.5%
C77Ruy Lopez, Morphy defence, Duras variation10831.5%48.1%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)19631.1%51.3%
C77Ruy Lopez, Wormald (Alapin) attack66933.2%50.5%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C77Ruy Lopez, four knights (Tarrasch) variation30631.0%56.0%
C78Ruy Lopez, ...b5 & ...d610027.0%47.5%
C78Ruy Lopez, 5.O-O291031.3%54.6%
C78Ruy Lopez, Archangelsk (counterthrust) variation390329.1%54.0%
C78Ruy Lopez, Moeller defence80230.4%52.1%
C78Ruy Lopez, Rabinovich variation10.0%100.0%
C78Ruy Lopez, Wing attack2045.0%62.5%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)36232.9%52.3%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1844.4%50.0%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1421.4%67.9%
C80Ruy Lopez, open (Tarrasch) defence12638.9%48.8%
C80Ruy Lopez, open, 6.d44727.7%60.6%
C80Ruy Lopez, open, 7.Bb351030.6%52.2%
C80Ruy Lopez, open, 8...Be6135032.3%46.1%
C80Ruy Lopez, open, 8.de1921.1%52.6%
C80Ruy Lopez, open, Berger variation666.7%33.3%
C80Ruy Lopez, open, Bernstein variation98136.5%58.1%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit1163.6%68.2%
C80Ruy Lopez, open, Friess attack850.0%37.5%
C80Ruy Lopez, open, Harksen gambit50.0%60.0%
C80Ruy Lopez, open, Richter variation30.0%33.3%
C80Ruy Lopez, open, Riga variation4030.0%57.5%
C80Ruy Lopez, open, Schlechter defence2339.1%32.6%
C80Ruy Lopez, open, Tartakower variation1338.5%57.7%
C80Ruy Lopez, open, Zukertort variation714.3%50.0%
C81Ruy Lopez, open, Howell attack9738.1%58.2%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1752.9%61.8%
C82Ruy Lopez, open, 9.c3616.7%58.3%
C82Ruy Lopez, open, Berlin variation2030.0%60.0%
C82Ruy Lopez, open, Dilworth variation9026.7%52.2%
C82Ruy Lopez, open, Italian variation8931.5%61.8%
C82Ruy Lopez, open, Motzko attack8538.8%52.4%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation850.0%37.5%
C82Ruy Lopez, open, St. Petersburg variation28738.7%59.4%
C83Ruy Lopez, open, 9...Be7, 10.Re12231.8%56.8%
C83Ruy Lopez, open, Breslau variation50.0%80.0%
C83Ruy Lopez, open, Malkin variation1330.8%69.2%
C83Ruy Lopez, open, classical defence18938.1%57.1%
C84Ruy Lopez, closed defence124232.4%51.9%
C84Ruy Lopez, closed, centre attack22432.6%50.2%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)166231.3%53.2%
C86Ruy Lopez, Worrall attack9726.8%57.7%
C86Ruy Lopez, Worrall attack, sharp line28032.9%50.0%
C86Ruy Lopez, Worrall attack, solid line25630.9%51.0%
C87Ruy Lopez, closed, Averbach variation39230.1%57.4%
C88Ruy Lopez, Noah's ark trap50.0%60.0%
C88Ruy Lopez, Trajkovic counter-attack29126.8%53.3%
C88Ruy Lopez, closed421127.5%48.3%
C88Ruy Lopez, closed, 7...O-O894229.8%51.9%
C88Ruy Lopez, closed, 7...d6, 8.d413124.4%38.2%
C88Ruy Lopez, closed, 8.c34825.0%50.0%
C88Ruy Lopez, closed, Balla variation2937.9%63.8%
C88Ruy Lopez, closed, anti-Marshall 8.a4164229.0%52.1%
C89Ruy Lopez, Marshall counter-attack401933.6%51.8%
C89Ruy Lopez, Marshall counter-attack, 11...c6116035.1%48.3%
C89Ruy Lopez, Marshall, Herman Steiner variation365.6%50.0%
C89Ruy Lopez, Marshall, Kevitz variation1428.6%42.9%
C89Ruy Lopez, Marshall, main line, 12.d2d4137727.4%55.7%
C89Ruy Lopez, Marshall, main line, 14...Qh3101140.5%48.4%
C89Ruy Lopez, Marshall, main line, Spassky variation1100.0%50.0%
C90Ruy Lopez, closed (with ...d6)244027.7%49.3%
C90Ruy Lopez, closed, Lutikov variation2948.3%51.7%
C90Ruy Lopez, closed, Pilnik variation314026.0%52.5%
C90Ruy Lopez, closed, Suetin variation5724.6%50.9%
C91Ruy Lopez, closed, 9.d4396527.2%56.0%
C91Ruy Lopez, closed, Bogolyubov variation641832.1%51.9%
C92Ruy Lopez, closed, 9.h357327.2%55.3%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)361932.4%53.9%
C92Ruy Lopez, closed, Keres (9...a5) variation5022.0%59.0%
C92Ruy Lopez, closed, Kholmov variation19926.6%59.0%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation31133.1%64.8%
C93Ruy Lopez, closed, Smyslov defence25233.3%57.9%
C94Ruy Lopez, closed, Breyer defence12237.7%53.3%
C95Ruy Lopez, closed, Breyer, Borisenko variation237130.4%56.3%
C95Ruy Lopez, closed, Breyer, Gligoric variation7418.9%66.2%
C95Ruy Lopez, closed, Breyer, Simagin variation7944.3%62.7%
C96Ruy Lopez, closed (10...c5)125229.9%59.3%
C96Ruy Lopez, closed (8...Na5)5626.8%52.7%
C96Ruy Lopez, closed, Borisenko defence8228.0%57.9%
C96Ruy Lopez, closed, Keres (...Nd7) defence32938.6%60.9%
C96Ruy Lopez, closed, Rossolimo defence616.7%75.0%
C97Ruy Lopez, closed, Chigorin defence176222.9%60.2%
C98Ruy Lopez, closed, Chigorin, 12...Nc626426.9%63.8%
C98Ruy Lopez, closed, Chigorin, Rauzer attack10.0%0.0%
C99Ruy Lopez, closed, Chigorin, 12...c5d4207334.2%59.0%
D00Blackmar gambit8829.5%42.0%
D00Blackmar-Diemer gambit3215.6%51.6%
D00Blackmar-Diemer, Euwe defence110.0%45.5%
D00Blackmar-Diemer, Lemberg counter-gambit250.0%75.0%
D00Levitsky attack (Queen's bishop attack)271125.0%49.7%
D00Queen's pawn game213725.2%51.1%
D00Queen's pawn, Chigorin variation154722.3%51.6%
D00Queen's pawn, Mason variation206625.4%52.1%
D00Queen's pawn, Mason variation, Steinitz counter-gambit61830.9%50.6%
D00Queen's pawn, stonewall attack10326.2%49.0%
D01Richter-Veresov attack128726.6%46.2%
D01Richter-Veresov attack, Richter variation6741.8%43.3%
D01Richter-Veresov attack, Veresov variation5619.6%54.5%
D02Queen's bishop game362928.5%51.4%
D02Queen's pawn game1488227.7%52.8%
D02Queen's pawn game, Chigorin variation177625.3%55.0%
D02Queen's pawn game, Krause variation84833.5%51.3%
D03Torre attack (Tartakower variation)95023.3%50.5%
D04Queen's pawn game251430.7%53.3%
D05Colle system80830.6%52.3%
D05Queen's pawn game224829.4%53.0%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation79032.5%55.9%
D05Queen's pawn game, Zukertort variation4231.0%56.0%
D06QGD, Grau (Sahovic) defence158624.9%55.9%
D06QGD, Marshall defence36828.5%59.9%
D06QGD, symmetrical (Austrian) defence11429.8%56.1%
D06Queen's Gambit2119.0%57.1%
D07QGD, Chigorin defence247227.1%57.6%
D07QGD, Chigorin defence, Janowski variation62724.4%62.0%
D08QGD, Albin counter-gambit24736.4%53.0%
D08QGD, Albin counter-gambit, Alapin variation3339.4%59.1%
D08QGD, Albin counter-gambit, Balogh variation10.0%0.0%
D08QGD, Albin counter-gambit, Janowski variation10.0%100.0%
D08QGD, Albin counter-gambit, Krenosz variation250.0%75.0%
D09QGD, Albin counter-gambit, 5.g314533.1%57.2%
D10QGD Slav defence549930.0%54.5%
D10QGD Slav defence, Alekhine variation46520.9%56.5%
D10QGD Slav defence, exchange variation326630.8%52.6%
D10QGD Slav, Winawer counter-gambit31227.9%56.6%
D11QGD Slav, 3.Nf3561728.6%54.5%
D11QGD Slav, 4.e3563329.6%55.2%
D11QGD Slav, Breyer variation27728.9%53.8%
D12QGD Slav, 4.e3 Bf5913828.0%54.4%
D12QGD Slav, Amsterdam variation7335.6%47.9%
D12QGD Slav, Landau variation1100.0%50.0%
D12QGD Slav, exchange variation45025.1%53.0%
D13QGD Slav, exchange variation142132.2%53.4%
D14QGD Slav, exchange variation, 6.Bf4 Bf582831.6%51.0%
D14QGD Slav, exchange, Trifunovic variation22440.2%51.3%
D15QGD Slav accepted34827.0%50.6%
D15QGD Slav, 4.Nc3414028.8%52.7%
D15QGD Slav, 5.e3 (Alekhine variation)36023.6%49.6%
D15QGD Slav, Schlechter variation34230.4%55.6%
D15QGD Slav, Slav gambit38825.5%46.8%
D15QGD Slav, Suechting variation9219.6%52.2%
D15QGD Slav, Tolush-Geller gambit35725.5%43.8%
D16QGD Slav accepted, Alapin variation29421.8%70.4%
D16QGD Slav, Smyslov variation13726.3%59.1%
D16QGD Slav, Soultanbeieff variation26238.5%56.7%
D16QGD Slav, Steiner variation37828.3%59.1%
D17QGD Slav, Carlsbad variation69032.5%52.5%
D17QGD Slav, Czech defence92035.2%54.0%
D17QGD Slav, Krause attack85626.6%58.1%
D17QGD Slav, Wiesbaden variation68727.7%58.4%
D18QGD Slav, Dutch variation93331.7%57.3%
D18QGD Slav, Dutch, Lasker variation3013.3%66.7%
D19QGD Slav, Dutch variation272129.4%56.5%
D19QGD Slav, Dutch variation, main line50834.4%52.1%
D20QGA, 3.e4411229.0%56.1%
D20QGA, Linares variation6929.0%52.2%
D20QGA, Schwartz defence2100.0%50.0%
D20Queen's gambit accepted205130.9%55.4%
D21QGA, 3.Nf3126425.9%55.5%
D21QGA, Alekhine defense, Borisenko-Furman variation4429.5%37.5%
D21QGA, Ericson variation2842.9%53.6%
D22QGA, Alekhine defence42135.2%57.7%
D22QGA, Alekhine defence, Alatortsev variation1145.5%68.2%
D22QGA, Haberditz variation25735.0%58.8%
D23QGA, Mannheim variation53932.3%54.0%
D23Queen's gambit accepted18129.8%49.7%
D24QGA, 4.Nc333031.8%54.1%
D24QGA, Bogolyubov variation27716.6%46.9%
D25QGA, 4.e357229.2%57.8%
D25QGA, Flohr variation8229.3%63.4%
D25QGA, Janowsky-Larsen variation75029.3%55.9%
D25QGA, Smyslov variation20531.2%57.6%
D26QGA, 4...e686732.2%53.0%
D26QGA, classical variation136834.4%54.5%
D26QGA, classical variation, 6.O-O44835.3%58.3%
D26QGA, classical, Furman variation560.0%50.0%
D26QGA, classical, Steinitz variation14746.9%58.8%
D27QGA, classical, 6...a6546436.2%53.7%
D27QGA, classical, Geller variation8632.6%43.0%
D27QGA, classical, Rubinstein variation418134.3%55.5%
D28QGA, classical, 7...b527834.2%55.2%
D28QGA, classical, 7.Qe213641.2%55.9%
D29QGA, classical, 8...Bb779131.7%47.9%
D29QGA, classical, Smyslov variation9628.1%54.7%
D30QGD298232.0%52.0%
D30QGD Slav118331.6%52.6%
D30QGD Slav, Semmering variation26933.5%50.6%
D30QGD, Capablanca variation6020.0%46.7%
D30QGD, Capablanca-Duras variation82128.3%52.5%
D30QGD, Hastings variation75635.6%50.7%
D30QGD, Spielmann variation540.0%80.0%
D30QGD, Stonewall variation333.3%83.3%
D30QGD, Vienna variation123038.6%53.1%
D30Queen's gambit declined707031.1%53.5%
D31QGD, 3.Nc3104428.2%55.4%
D31QGD, Alapin variation4216.7%41.7%
D31QGD, Charousek (Petrosian) variation216229.2%53.3%
D31QGD, Janowski variation21537.7%54.7%
D31QGD, semi-Slav134931.1%54.1%
D31QGD, semi-Slav, Abrahams variation85130.4%44.9%
D31QGD, semi-Slav, Junge variation3520.0%61.4%
D31QGD, semi-Slav, Koomen variation560.0%50.0%
D31QGD, semi-Slav, Marshall gambit305828.5%55.2%
D31QGD, semi-Slav, Noteboom variation76527.7%52.3%
D32QGD, Tarrasch defence44631.4%55.2%
D32QGD, Tarrasch defence, 4.cd ed3125.8%48.4%
D32QGD, Tarrasch defence, Marshall gambit2138.1%52.4%
D32QGD, Tarrasch defence, Tarrasch gambit728.6%42.9%
D32QGD, Tarrasch, von Hennig-Schara gambit8630.2%58.1%
D33QGD, Tarrasch, Folkestone (Swedish) variation6737.3%57.5%
D33QGD, Tarrasch, Prague variation13633.1%59.2%
D33QGD, Tarrasch, Schlechter-Rubinstein system1323.1%50.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation1100.0%50.0%
D33QGD, Tarrasch, Wagner variation2828.6%60.7%
D34QGD, Tarrasch, Bogolyubov variation742.9%21.4%
D34QGD, Tarrasch, Prague variation, 7...Be748031.0%59.1%
D34QGD, Tarrasch, Prague variation, 9.Bg5122037.7%57.6%
D34QGD, Tarrasch, Prague variation, Normal position128534.7%58.1%
D34QGD, Tarrasch, Reti variation6439.1%55.5%
D34QGD, Tarrasch, Stoltz variation20.0%100.0%
D35QGD, 3...Nf620433.3%44.1%
D35QGD, Harrwitz attack11935.3%50.4%
D35QGD, exchange variation39332.1%55.7%
D35QGD, exchange, Saemisch variation31528.6%53.7%
D35QGD, exchange, chameleon variation1827.8%63.9%
D35QGD, exchange, positional line274527.9%53.3%
D35QGD, exchange, positional line, 5...c6191428.2%54.7%
D36QGD, exchange, positional line, 6.Qc246533.3%51.5%
D37QGD, 4.Nf3668932.5%53.3%
D37QGD, classical variation (5.Bf4)840732.8%53.6%
D38QGD, Ragozin variation829432.3%53.7%
D39QGD, Ragozin, Vienna variation155636.6%50.5%
D40QGD, Semi-Tarrasch defence101333.3%51.5%
D40QGD, Semi-Tarrasch defence, Pillsbury variation5040.0%52.0%
D40QGD, Semi-Tarrasch, symmetrical variation7632.9%49.3%
D41QGD, Semi-Tarrasch with e336036.9%54.6%
D41QGD, Semi-Tarrasch, 5.cd100636.7%57.5%
D41QGD, Semi-Tarrasch, Kmoch variation3256.3%59.4%
D41QGD, Semi-Tarrasch, San Sebastian variation8025.0%68.8%
D42QGD, Semi-Tarrasch, 7.Bd368436.3%57.6%
D43QGD semi-Slav2211129.1%53.6%
D43QGD semi-Slav, Hastings variation825.0%25.0%
D44QGD semi-Slav, 5.Bg5 dc43833.3%48.9%
D44QGD semi-Slav, Botvinnik system (anti-Meran)38024.7%47.6%
D44QGD semi-Slav, Ekstrom variation5320.8%38.7%
D44QGD semi-Slav, anti-Meran gambit201226.2%60.1%
D44QGD semi-Slav, anti-Meran, Alatortsev system5111.8%60.8%
D44QGD semi-Slav, anti-Meran, Lilienthal variation48421.3%58.8%
D44QGD semi-Slav, anti-Meran, Szabo variation22719.8%40.3%
D45QGD semi-Slav, 5...Nd7134726.9%51.4%
D45QGD semi-Slav, 5.e3146928.7%56.9%
D45QGD semi-Slav, Rubinstein (anti-Meran) system3135.5%59.7%
D45QGD semi-Slav, Stoltz variation4092230.5%52.5%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)381832.3%53.8%
D45QGD semi-Slav, stonewall defence2619.2%67.3%
D46QGD semi-Slav, 6.Bd311029.1%51.8%
D46QGD semi-Slav, Bogolyubov variation44730.2%56.5%
D46QGD semi-Slav, Chigorin defence86232.7%53.9%
D46QGD semi-Slav, Romih variation23727.8%64.6%
D47QGD semi-Slav, 7.Bc484927.2%58.0%
D47QGD semi-Slav, Meran variation323231.5%53.0%
D47QGD semi-Slav, Meran, Wade variation2197629.3%52.9%
D47QGD semi-Slav, neo-Meran (Lundin variation)73531.3%56.6%
D48QGD semi-Slav, Meran37323.3%47.9%
D48QGD semi-Slav, Meran, 8...a6707331.0%48.8%
D48QGD semi-Slav, Meran, Pirc variation3528.6%62.9%
D48QGD semi-Slav, Meran, Reynolds' variation137729.2%56.0%
D48QGD semi-Slav, Meran, old main line20834.1%56.5%
D49QGD semi-Slav, Meran, Blumenfeld variation56329.8%51.5%
D49QGD semi-Slav, Meran, Rabinovich variation11340.7%61.1%
D49QGD semi-Slav, Meran, Rellstab attack3633.3%50.0%
D49QGD semi-Slav, Meran, Sozin variation41840.0%49.2%
D49QGD semi-Slav, Meran, Stahlberg variation9032.2%51.7%
D50QGD, 4.Bg532630.7%56.4%
D50QGD, Been-Koomen variation1631.3%46.9%
D50QGD, Canal (Venice) variation30.0%33.3%
D50QGD, Semi-Tarrasch3452.9%61.8%
D50QGD, Semi-Tarrasch, Krause variation366.7%33.3%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation2528.0%38.0%
D51QGD3818.4%64.5%
D51QGD, 4.Bg5 Nbd712929.5%55.8%
D51QGD, 5...c68928.1%59.0%
D51QGD, Alekhine variation1421.4%53.6%
D51QGD, Capablanca anti-Cambridge Springs variation1631.3%59.4%
D51QGD, Manhattan variation2429.2%56.3%
D51QGD, Rochlin variation10.0%0.0%
D52QGD44929.4%56.1%
D52QGD, Cambridge Springs defence8749.4%47.7%
D52QGD, Cambridge Springs defence, 7.cd47931.5%58.1%
D52QGD, Cambridge Springs defence, Argentine variation3324.2%48.5%
D52QGD, Cambridge Springs defence, Bogoljubow variation70130.0%54.1%
D52QGD, Cambridge Springs defence, Capablanca variation4436.4%52.3%
D52QGD, Cambridge Springs defence, Rubinstein variation22631.9%55.3%
D52QGD, Cambridge Springs defence, Yugoslav variation132226.9%58.4%
D53QGD, 4.Bg5 Be771136.7%55.8%
D53QGD, 4.Bg5 Be7, 5.e3 O-O3237.5%56.3%
D53QGD, Lasker variation922.2%66.7%
D54QGD, Anti-neo-orthodox variation4829.2%52.1%
D55QGD, 6.Nf336532.6%58.8%
D55QGD, Neo-orthodox variation1457.1%64.3%
D55QGD, Neo-orthodox variation, 7.Bh455431.8%53.8%
D55QGD, Neo-orthodox variation, 7.Bxf632637.1%51.4%
D55QGD, Petrosian variation46939.0%52.8%
D55QGD, Pillsbury attack30.0%33.3%
D56QGD, Lasker defence54030.2%52.3%
D56QGD, Lasker defence, Teichmann variation15033.3%60.0%
D57QGD, Lasker defence, Bernstein variation2937.9%50.0%
D57QGD, Lasker defence, main line5435.2%58.3%
D58QGD, Tartakower (Makagonov-Bondarevsky) system1329232.7%52.6%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd557037.5%51.8%
D59QGD, Tartakower variation20446.1%41.2%
D60QGD, Orthodox defence37331.4%57.8%
D60QGD, Orthodox defence, Botvinnik variation25036.8%52.8%
D60QGD, Orthodox defence, Rauzer variation2828.6%57.1%
D61QGD, Orthodox defence, Rubinstein variation55130.1%53.7%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)28142.3%50.4%
D63QGD, Orthodox defence11526.1%57.4%
D63QGD, Orthodox defence, 7.Rc135234.1%54.0%
D63QGD, Orthodox defence, Capablanca variation60.0%66.7%
D63QGD, Orthodox defence, Pillsbury attack2744.4%40.7%
D63QGD, Orthodox defence, Swiss (Henneberger) variation21729.0%50.9%
D63QGD, Orthodox defence, Swiss, Karlsbad variation30529.2%52.3%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)18641.4%57.8%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation11038.2%49.1%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation3036.7%41.7%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation3540.0%54.3%
D65QGD, Orthodox defence, Rubinstein attack, main line2334.8%39.1%
D66QGD, Orthodox defence, Bd3 line39130.4%55.4%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation3727.0%64.9%
D67QGD, Orthodox defence, Bd3 line6543.1%52.3%
D67QGD, Orthodox defence, Bd3 line, 11.O-O18530.8%62.4%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation11448.2%63.6%
D67QGD, Orthodox defence, Bd3 line, Capablanca freeing manoevre10.0%100.0%
D67QGD, Orthodox defence, Bd3 line, Janowski variation757.1%42.9%
D68QGD, Orthodox defence, classical variation14035.7%55.0%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)771.4%64.3%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)8436.9%58.9%
D69QGD, Orthodox defence, classical, 13.de2458.3%50.0%
D70Neo-Gruenfeld (Kemeri) defence21041.0%55.2%
D70Neo-Gruenfeld defence46422.6%51.4%
D71Neo-Gruenfeld, 5.cd23239.7%55.6%
D72Neo-Gruenfeld, 5.cd, main line37731.3%52.0%
D73Neo-Gruenfeld, 5.Nf3126140.2%53.3%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O59033.4%58.1%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc346541.5%54.1%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc4731.9%60.6%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6139533.5%56.0%
D77Neo-Gruenfeld, 6.O-O209833.5%53.7%
D78Neo-Gruenfeld, 6.O-O c6207332.4%53.6%
D79Neo-Gruenfeld, 6.O-O, main line97836.8%53.6%
D80Gruenfeld defence85641.5%53.6%
D80Gruenfeld, Stockholm variation61135.4%49.9%
D81Gruenfeld, Russian variation40534.8%55.2%
D82Gruenfeld, 4.Bf461134.0%53.5%
D83Gruenfeld, Gruenfeld gambit7031.4%50.0%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation2365.2%41.3%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation11144.1%57.2%
D84Gruenfeld, Gruenfeld gambit accepted9326.9%66.1%
D85Gruenfeld, exchange variation310636.3%52.7%
D85Gruenfeld, modern exchange variation810736.5%53.5%
D86Gruenfeld, exchange, Larsen variation2330.4%63.0%
D86Gruenfeld, exchange, Simagin's improved variation14333.6%54.5%
D86Gruenfeld, exchange, Simagin's lesser variation6432.8%61.7%
D86Gruenfeld, exchange, classical variation138531.8%54.5%
D87Gruenfeld, exchange, Seville variation19139.3%65.2%
D87Gruenfeld, exchange, Spassky variation71734.4%57.3%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd34041.5%51.9%
D89Gruenfeld, Spassky variation, main line, 13.Bd310732.7%53.7%
D89Gruenfeld, exchange, Sokolsky variation6434.4%39.1%
D90Gruenfeld, Flohr variation31135.4%48.6%
D90Gruenfeld, Schlechter variation3525.7%64.3%
D90Gruenfeld, Three knights variation74834.8%53.9%
D91Gruenfeld, 5.Bg5208632.0%49.7%
D92Gruenfeld, 5.Bf4114933.2%55.4%
D93Gruenfeld with Bf4 e372737.4%52.7%
D94Gruenfeld with e3 Bd33040.0%60.0%
D94Gruenfeld, 5.e376435.1%57.7%
D94Gruenfeld, Flohr defence6826.5%54.4%
D94Gruenfeld, Makogonov variation23232.3%51.1%
D94Gruenfeld, Opovcensky variation21237.7%49.5%
D94Gruenfeld, Smyslov defence26035.8%52.5%
D95Gruenfeld with e3 & Qb37337.0%50.0%
D95Gruenfeld, Botvinnik variation11631.0%44.0%
D96Gruenfeld, Russian variation53430.3%53.7%
D97Gruenfeld, Russian variation with e47431.1%50.7%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation421731.4%51.3%
D97Gruenfeld, Russian, Byrne (Simagin) variation35525.9%50.1%
D97Gruenfeld, Russian, Levenfish variation2020.0%55.0%
D97Gruenfeld, Russian, Prins variation125733.7%55.6%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation34829.0%60.5%
D98Gruenfeld, Russian, Keres variation1225.0%70.8%
D98Gruenfeld, Russian, Smyslov variation60428.1%54.1%
D99Gruenfeld defence, Smyslov, Yugoslav variation5149.0%59.8%
D99Gruenfeld defence, Smyslov, main line38930.6%61.8%
E00Catalan opening689530.7%54.2%
E00Neo-Indian (Seirawan) attack58224.2%49.6%
E00Queen's pawn game148427.8%54.0%
E01Catalan, closed55831.2%53.9%
E02Catalan, open, 5.Qa410240.2%59.3%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc43641.7%56.9%
E03Catalan, open, Alekhine variation156.7%43.3%
E04Catalan, open, 5.Nf31174432.5%53.6%
E05Catalan, open, classical line51531.5%56.1%
E06Catalan, closed, 5.Nf3709334.5%54.4%
E07Catalan, closed, 6...Nbd719129.3%52.9%
E07Catalan, closed, Botvinnik variation15324.2%60.5%
E08Catalan, closed, 7.Qc224131.1%54.6%
E08Catalan, closed, Qc2 & b344528.1%52.5%
E08Catalan, closed, Spassky gambit2722.2%59.3%
E08Catalan, closed, Zagoryansky variation450.0%75.0%
E09Catalan, closed, Sokolsky variation540.0%60.0%
E09Catalan, closed, main line71728.0%56.6%
E10Blumenfeld counter-gambit13027.7%54.6%
E10Blumenfeld counter-gambit accepted20523.4%53.7%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation39228.1%55.6%
E10Blumenfeld counter-gambit, Spielmann variation10119.8%53.5%
E10Doery defence10823.1%45.8%
E10Dzindzikhashvili defence20427.9%59.6%
E10Queen's pawn game723531.4%54.5%
E11Bogo-Indian defence370932.8%55.5%
E11Bogo-Indian defence, Gruenfeld variation382031.1%55.4%
E11Bogo-Indian defence, Monticelli trap3026.7%56.7%
E11Bogo-Indian defence, Nimzovich variation274528.7%56.5%
E12Queen's Indian defence53129.0%50.5%
E12Queen's Indian, 4.Nc3704129.2%52.7%
E12Queen's Indian, 4.Nc3, Botvinnik variation11328.3%49.6%
E12Queen's Indian, Miles variation147831.5%53.4%
E12Queen's Indian, Petrosian system1148931.9%53.4%
E13Queen's Indian, 4.Nc3, main line37025.4%55.7%
E14Queen's Indian, 4.e3286130.0%52.1%
E14Queen's Indian, Averbakh variation933.3%38.9%
E15Queen's Indian, 4.g3188741.0%55.1%
E15Queen's Indian, 4.g3 Bb727329.3%54.2%
E15Queen's Indian, Buerger variation3528.6%51.4%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)3301229.5%55.0%
E15Queen's Indian, Rubinstein variation13023.1%52.3%
E16Queen's Indian, Capablanca variation42732.8%57.6%
E16Queen's Indian, Riumin variation42732.3%55.7%
E16Queen's Indian, Yates variation84231.0%59.0%
E17Queen's Indian, 5.Bg2 Be79434.0%48.9%
E17Queen's Indian, Euwe variation10536.2%60.0%
E17Queen's Indian, Opovcensky variation139229.5%58.2%
E17Queen's Indian, anti-Queen's Indian system29734.3%54.2%
E17Queen's Indian, old main line, 6.O-O100331.3%56.4%
E18Queen's Indian, old main line, 7.Nc3316433.2%56.3%
E19Queen's Indian, old main line, 9.Qxc3173633.5%54.8%
E20Nimzo-Indian defence28129.5%46.8%
E20Nimzo-Indian, Kmoch variation114325.4%54.0%
E20Nimzo-Indian, Mikenas attack1926.3%34.2%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system80328.6%49.7%
E21Nimzo-Indian, three knights variation363129.0%51.6%
E21Nimzo-Indian, three knights, Euwe variation837.5%56.3%
E21Nimzo-Indian, three knights, Korchnoi variation4434.1%60.2%
E22Nimzo-Indian, Spielmann variation16035.0%53.8%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc63423.5%44.1%
E23Nimzo-Indian, Spielmann, Karlsbad variation1729.4%38.2%
E23Nimzo-Indian, Spielmann, San Remo variation650.0%58.3%
E24Nimzo-Indian, Saemisch variation21932.9%49.3%
E24Nimzo-Indian, Saemisch, Botvinnik variation3327.3%47.0%
E25Nimzo-Indian, Saemisch variation12636.5%53.2%
E25Nimzo-Indian, Saemisch, Keres variation42229.9%51.9%
E25Nimzo-Indian, Saemisch, Romanovsky variation17142.7%49.4%
E26Nimzo-Indian, Saemisch variation14726.5%48.6%
E26Nimzo-Indian, Saemisch, O'Kelly variation4126.8%40.2%
E27Nimzo-Indian, Saemisch variation5131.4%51.0%
E28Nimzo-Indian, Saemisch variation10632.1%54.7%
E29Nimzo-Indian, Saemisch, Capablanca variation13040.0%50.8%
E29Nimzo-Indian, Saemisch, main line13630.9%58.8%
E30Nimzo-Indian, Leningrad variation50030.6%51.1%
E30Nimzo-Indian, Leningrad, ...b5 gambit3842.1%42.1%
E31Nimzo-Indian, Leningrad, main line21921.5%45.9%
E32Nimzo-Indian, classical variation893532.6%53.0%
E32Nimzo-Indian, classical, Adorjan gambit20527.8%55.9%
E33Nimzo-Indian, classical, 4...Nc614223.2%61.6%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation63627.0%53.1%
E34Nimzo-Indian, classical, Noa variation86233.6%52.2%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed100233.6%49.6%
E36Nimzo-Indian, classical, Botvinnik variation1533.3%56.7%
E36Nimzo-Indian, classical, Noa variation, 5.a349632.7%55.6%
E36Nimzo-Indian, classical, Noa variation, main line50.0%20.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc215632.1%59.6%
E37Nimzo-Indian, classical, San Remo variation1241.7%54.2%
E38Nimzo-Indian, classical, 4...c580431.2%56.8%
E39Nimzo-Indian, classical, Pirc variation140332.6%56.3%
E40Nimzo-Indian, 4.e323626.7%54.0%
E40Nimzo-Indian, 4.e3, Taimanov variation12226.2%52.5%
E41Nimzo-Indian, 4.e3 c586233.9%50.9%
E41Nimzo-Indian, e3, Huebner variation96525.5%49.2%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)210131.7%55.3%
E43Nimzo-Indian, Fischer variation64630.2%54.9%
E44Nimzo-Indian, Fischer variation, 5.Ne293825.5%56.7%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation71530.8%54.4%
E46Nimzo-Indian, 4.e3 O-O19836.9%51.3%
E46Nimzo-Indian, Reshevsky variation151428.4%52.4%
E46Nimzo-Indian, Simagin variation11428.9%48.7%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd389837.0%55.5%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d570632.4%52.1%
E49Nimzo-Indian, 4.e3, Botvinnik system45129.5%48.2%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d515132.5%57.9%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d529634.1%50.5%
E51Nimzo-Indian, 4.e3, Ragozin variation5350.9%57.5%
E52Nimzo-Indian, 4.e3, main line with ...b697932.1%52.4%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd713339.1%54.9%
E53Nimzo-Indian, 4.e3, Keres variation12233.6%47.1%
E53Nimzo-Indian, 4.e3, main line with ...c5170636.9%52.3%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc238235.9%53.7%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation5232.7%56.7%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation301534.8%53.5%
E56Nimzo-Indian, 4.e3, main line with 7...Nc6134030.7%54.3%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd2927.6%72.4%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3298328.8%48.7%
E59Nimzo-Indian, 4.e3, main line211230.7%54.1%
E60King's Indian defence173623.4%53.4%
E60King's Indian, 3.Nf3487729.2%55.5%
E60King's Indian, 3.g3239931.1%55.6%
E60King's Indian, 3.g3, counterthrust variation1631.3%46.9%
E60King's Indian, Anti-Gruenfeld14122.7%46.1%
E60King's Indian, Danube gambit1631.3%53.1%
E60Queen's pawn, Mengarini attack14124.8%50.7%
E61King's Indian defence, 3.Nc3140028.7%54.2%
E61King's Indian, Smyslov system15026.7%49.3%
E62King's Indian, fianchetto variation15728.7%54.5%
E62King's Indian, fianchetto with ...Nc634725.4%56.8%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation116629.8%58.5%
E62King's Indian, fianchetto, Larsen system33229.2%53.8%
E62King's Indian, fianchetto, Simagin variation16928.4%68.0%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation52130.3%58.2%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation46624.5%58.4%
E63King's Indian, fianchetto, Panno variation330628.6%57.1%
E64King's Indian, fianchetto, Yugoslav system19524.1%56.7%
E65King's Indian, fianchetto, Yugoslav, 7.O-O24831.5%57.3%
E66King's Indian, fianchetto, Yugoslav Panno48227.0%56.0%
E67King's Indian, fianchetto with ...Nd720629.1%62.6%
E67King's Indian, fianchetto, classical variation101831.5%55.6%
E68King's Indian, fianchetto, classical variation, 8.e4213929.1%58.8%
E69King's Indian, fianchetto, classical main line126130.5%60.0%
E70King's Indian, 4.e491626.0%54.4%
E70King's Indian, Kramer system24922.5%53.4%
E70King's Indian, accelerated Averbakh system13327.1%50.4%
E71King's Indian, Makagonov system (5.h3)95026.3%55.6%
E72King's Indian with e4 & g34831.3%55.2%
E72King's Indian, Pomar system1553.3%60.0%
E73King's Indian, 5.Be211421.9%50.4%
E73King's Indian, Averbakh system93529.0%52.5%
E73King's Indian, Semi-Averbakh system5125.5%53.9%
E74King's Indian, Averbakh, 6...c528326.5%62.0%
E75King's Indian, Averbakh, main line5232.7%47.1%
E76King's Indian, Four pawns attack32733.0%59.3%
E76King's Indian, Four pawns attack, dynamic line17132.2%50.0%
E77King's Indian, Four pawns attack24633.3%53.3%
E77King's Indian, Four pawns attack, 6.Be2933.3%50.0%
E77King's Indian, Four pawns attack, Florentine gambit4129.3%41.5%
E78King's Indian, Four pawns attack, with Be2 and Nf33237.5%50.0%
E79King's Indian, Four pawns attack, main line12845.3%57.0%
E80King's Indian, Saemisch variation55424.5%54.5%
E81King's Indian, Saemisch, 5...O-O241225.5%54.1%
E81King's Indian, Saemisch, Byrne variation8930.3%51.1%
E82King's Indian, Saemisch, double fianchetto variation16529.7%59.7%
E83King's Indian, Saemisch, 6...Nc612419.4%56.5%
E83King's Indian, Saemisch, Panno formation22923.6%52.4%
E83King's Indian, Saemisch, Ruban variation1020.0%50.0%
E84King's Indian, Saemisch, Panno main line87621.9%52.1%
E85King's Indian, Saemisch, orthodox variation7830.8%56.4%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c656623.0%54.9%
E87King's Indian, Saemisch, orthodox, 7.d551919.8%62.7%
E87King's Indian, Saemisch, orthodox, Bronstein variation1127.3%59.1%
E88King's Indian, Saemisch, orthodox, 7.d5 c653430.9%55.5%
E89King's Indian, Saemisch, orthodox main line8026.3%61.9%
E90King's Indian, 5.Nf3125923.4%54.4%
E90King's Indian, Larsen variation12128.1%55.4%
E90King's Indian, Zinnowitz variation10330.1%52.9%
E91King's Indian, 6.Be291625.3%60.2%
E91King's Indian, Kazakh variation70129.4%57.5%
E92King's Indian, Andersson variation48339.8%54.0%
E92King's Indian, Gligoric-Taimanov system265024.6%57.7%
E92King's Indian, Petrosian system20319.2%57.4%
E92King's Indian, Petrosian system, Stein variation122627.3%53.1%
E92King's Indian, classical variation2128.6%47.6%
E93King's Indian, Petrosian system, Keres variation2828.6%50.0%
E93King's Indian, Petrosian system, main line24024.2%55.4%
E94King's Indian, orthodox variation192631.4%57.0%
E94King's Indian, orthodox, 7...Nbd7262526.9%56.9%
E94King's Indian, orthodox, Donner variation23727.8%56.1%
E95King's Indian, orthodox, 7...Nbd7, 8.Re198926.8%56.3%
E96King's Indian, orthodox, 7...Nbd7, main line21632.9%59.0%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)874125.1%55.5%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack315528.7%57.6%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1319121.3%59.2%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack4231.0%44.0%
E99King's Indian, orthodox, Aronin-Taimanov, main line13422.4%53.7%

Created in 2005-2013 by CCRL team
Last games added on June 16, 2018