CCRL Blitz
Downloads and Statistics
October 17, 2020
Testing summary:
Total: 2'387'265 games
played by 2'826 programs

White wins: 919'531 (38.5%)
Black wins: 739'461 (31.0%)
Draws: 728'273 (30.5%)
White score: 53.8%

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) opening7722.1%42.2%
A00Amar gambit1216.7%50.0%
A00Amsterdam attack1833.3%38.9%
A00Anderssen's opening71622.5%48.0%
A00Anti-Borg (Desprez) opening2321.7%58.7%
A00Battambang opening933.3%27.8%
A00Benko's opening2002430.9%50.8%
A00Benko's opening, reversed Alekhine20230.7%50.0%
A00Clemenz (Mead's, Basman's or de Klerk's) opening552422.8%50.0%
A00Dunst (Sleipner, Heinrichsen) opening484630.2%50.6%
A00Durkin's attack7017.1%52.9%
A00Gedult's opening3917.9%50.0%
A00Global opening1618.8%71.9%
A00Grob's attack29021.7%45.0%
A00Grob, Fritz gambit3910.3%20.5%
A00Lasker simul special14027.9%46.8%
A00Mieses opening75819.9%51.1%
A00Novosibirsk opening25529.8%52.5%
A00Polish (Sokolsky) opening217430.6%50.0%
A00Polish, Outflank variation38228.5%48.8%
A00Polish, Tuebingen variation6920.3%50.7%
A00Saragossa opening108121.1%51.5%
A00Van't Kruijs opening145227.7%52.1%
A00Ware (Meadow Hay) opening22921.0%46.3%
A01Nimzovich-Larsen attack282430.8%49.6%
A01Nimzovich-Larsen attack, Dutch variation30225.2%52.6%
A01Nimzovich-Larsen attack, English variation140329.7%50.8%
A01Nimzovich-Larsen attack, Indian variation202830.6%50.7%
A01Nimzovich-Larsen attack, Polish variation3036.7%55.0%
A01Nimzovich-Larsen attack, classical variation415929.2%48.3%
A01Nimzovich-Larsen attack, modern variation536730.8%50.3%
A01Nimzovich-Larsen attack, symmetrical variation150932.9%50.8%
A02Bird's opening681829.6%49.8%
A02Bird's opening, Swiss gambit1414.3%64.3%
A02Bird, From gambit21927.9%50.9%
A02Bird, From gambit, Lasker variation6520.0%59.2%
A02Bird, From gambit, Lipke variation520.0%30.0%
A02Bird, Hobbs gambit633.3%66.7%
A03Bird's opening584028.4%48.5%
A03Bird's opening, Lasker variation7728.6%48.1%
A03Bird's opening, Williams gambit7926.6%58.9%
A03Mujannah opening70.0%42.9%
A04Reti opening2555530.1%53.7%
A04Reti v Dutch386727.8%56.5%
A04Reti, Herrstroem gambit250.0%75.0%
A04Reti, Lisitsin gambit deferred14124.8%52.1%
A04Reti, Pirc-Lisitsin gambit38325.3%51.6%
A04Reti, Wade defence540.0%80.0%
A05Reti opening1505330.3%52.3%
A05Reti, King's Indian attack386532.0%54.6%
A05Reti, King's Indian attack, Reti-Smyslov variation23227.2%48.9%
A05Reti, King's Indian attack, Spassky's variation133429.7%53.5%
A06Reti opening539132.2%52.8%
A06Reti, Nimzovich-Larsen attack529631.7%51.0%
A06Reti, old Indian attack68129.7%53.2%
A06Santasiere's folly21536.3%48.8%
A06Tennison (Lemberg, Zukertort) gambit3815.8%55.3%
A07Reti, King's Indian attack417434.4%52.7%
A07Reti, King's Indian attack (Barcza system)1486131.6%52.8%
A07Reti, King's Indian attack (with ...c5)53127.9%49.3%
A07Reti, King's Indian attack, Keres variation103631.4%52.6%
A07Reti, King's Indian attack, Pachman system26823.9%51.9%
A07Reti, King's Indian attack, Yugoslav variation614632.2%53.8%
A08Reti, King's Indian attack145130.5%53.7%
A08Reti, King's Indian attack, French variation148531.0%51.0%
A09Reti accepted223829.4%52.2%
A09Reti accepted, Keres variation18328.4%58.5%
A09Reti opening144728.5%53.9%
A09Reti, advance variation289626.6%49.1%
A10English opening784426.5%54.2%
A10English, Adorjan defence74434.3%49.8%
A10English, Anglo-Dutch defense235525.8%55.1%
A10English, Jaenisch gambit1723.5%70.6%
A11English, Caro-Kann defensive system276130.5%53.9%
A12English, Bled variation7930.4%55.7%
A12English, Capablanca's variation9630.2%51.6%
A12English, Caro-Kann defensive system35526.8%56.2%
A12English, Caro-Kann defensive system, Bogolyubov variation21527.4%49.1%
A12English, London defensive system93830.2%53.6%
A12English, New York (London) defensive system11924.4%45.8%
A12English, Torre defensive system94232.1%52.8%
A13English opening769928.5%52.7%
A13English opening, Agincourt variation407630.2%52.2%
A13English, Kurajica defence23727.4%54.6%
A13English, Neo-Catalan380133.0%54.0%
A13English, Neo-Catalan accepted295734.0%55.0%
A13English, Romanishin gambit150729.7%55.3%
A13English, Wimpey system54031.7%49.5%
A14English, Neo-Catalan declined161835.0%53.3%
A14English, Symmetrical, Keres defence95236.3%55.4%
A15English opening1728533.2%54.2%
A15English, 1...Nf6 (Anglo-Indian defense)246528.0%52.7%
A16English opening170628.8%53.3%
A16English, Anglo-Gruenfeld defense47030.4%51.6%
A16English, Anglo-Gruenfeld defense, Korchnoi variation2040.0%65.0%
A16English, Anglo-Gruenfeld, Czech defense14831.1%64.2%
A16English, Anglo-Gruenfeld, Smyslov defense9937.4%58.1%
A17English opening47532.4%51.8%
A17English, Nimzo-English opening335531.7%54.4%
A17English, Queens Indian formation33526.6%53.3%
A17English, Queens Indian, Romanishin variation6131.1%50.0%
A18English, Mikenas-Carls variation16226.5%57.1%
A18English, Mikenas-Carls, Flohr variation24631.7%56.1%
A18English, Mikenas-Carls, Kevitz variation5523.6%53.6%
A19English, Mikenas-Carls, Sicilian variation40227.6%52.9%
A20English opening1616429.1%52.4%
A20English, Nimzovich variation44826.8%52.2%
A20English, Nimzovich, Flohr variation83729.2%47.0%
A21English opening419728.8%54.2%
A21English, Keres variation2634.6%44.2%
A21English, Kramnik-Shirov counterattack494029.6%52.0%
A21English, Smyslov defence8529.4%55.9%
A21English, Troeger defence21930.6%54.1%
A22English opening161328.9%51.1%
A22English, Bellon gambit5722.8%46.5%
A22English, Bremen, Smyslov system335428.9%49.0%
A22English, Bremen, reverse dragon202433.4%52.7%
A22English, Carls' Bremen system102326.3%55.3%
A23English, Bremen system, Keres variation54233.6%50.2%
A24English, Bremen system with ...g610326.2%58.7%
A25English, Sicilian reversed159527.7%52.2%
A25English, closed system198626.8%53.3%
A25English, closed system (without ...d6)12623.0%48.8%
A25English, closed, 5.Rb1126026.8%51.6%
A25English, closed, 5.Rb1 Taimanov variation1020.0%30.0%
A25English, closed, Hort variation5030.0%51.0%
A25English, closed, Taimanov variation3633.3%50.0%
A26English, Botvinnik system45125.3%49.0%
A26English, closed system43725.2%50.8%
A27English, three knights system103127.0%52.4%
A28English, Bradley Beach variation22929.3%45.2%
A28English, Nenarokov variation11129.7%43.7%
A28English, four knights system88727.4%53.0%
A28English, four knights, 4.e3217731.3%52.0%
A28English, four knights, Capablanca variation76633.0%51.2%
A28English, four knights, Marini variation183134.8%53.4%
A28English, four knights, Nimzovich variation492736.5%53.0%
A28English, four knights, Romanishin variation142435.0%49.8%
A28English, four knights, Stean variation17924.6%55.9%
A29English, four knights, kingside fianchetto2602533.8%51.5%
A30English, symmetrical variation1184131.0%54.1%
A30English, symmetrical, hedgehog system1224534.0%56.0%
A30English, symmetrical, hedgehog, flexible formation82044.5%55.7%
A31English, symmetrical, Benoni formation283928.7%53.7%
A32English, symmetrical variation177832.1%51.3%
A33English, symmetrical variation905437.9%52.2%
A33English, symmetrical, Geller variation612335.0%53.3%
A34English, symmetrical variation247728.0%51.2%
A34English, symmetrical, Rubinstein system42933.8%52.8%
A34English, symmetrical, three knights system317735.4%52.1%
A35English, symmetrical variation59029.3%56.5%
A35English, symmetrical, four knights system656232.0%53.5%
A36English, symmetrical variation19826.8%49.2%
A36English, symmetrical, Botvinnik system132725.0%54.3%
A36English, symmetrical, Botvinnik system reversed17928.5%49.4%
A36English, ultra-symmetrical variation611525.6%49.9%
A37English, symmetrical variation111429.8%53.1%
A37English, symmetrical, Botvinnik system reversed82427.1%50.9%
A38English, symmetrical variation97630.2%53.3%
A38English, symmetrical, main line with b31136.4%36.4%
A38English, symmetrical, main line with d319234.4%51.6%
A39English, symmetrical, main line with d4167138.7%55.5%
A40Beefeater defence3823.7%61.8%
A40Modern defence422627.3%55.3%
A40Polish defence42026.4%57.3%
A40Queen's pawn815928.3%53.4%
A40Queen's pawn, Charlick (Englund) gambit9334.4%65.6%
A40Queen's pawn, English defence116127.1%56.7%
A40Queen's pawn, Franco-Indian (Keres) defence768827.4%55.7%
A40Queen's pawn, Keres defence696327.7%56.1%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence164128.8%57.3%
A41Modern defence18930.2%56.9%
A41Old Indian defence764125.2%51.4%
A41Old Indian, Tartakower (Wade) variation552124.8%58.8%
A41Queen's Pawn694325.2%55.7%
A41Robatsch defence, Rossolimo variation23726.2%54.4%
A42Modern defence, Averbakh system206628.0%55.2%
A42Modern defence, Averbakh system, Kotov variation159623.2%57.7%
A42Modern defence, Averbakh system, Randspringer variation825.0%25.0%
A42Pterodactyl defence112827.4%61.7%
A43Hawk (Habichd) defence425.0%37.5%
A43Old Benoni defence437526.4%56.0%
A43Old Benoni, Franco-Benoni defence27626.4%62.5%
A43Old Benoni, Mujannah formation36224.0%59.0%
A43Old Benoni, Schmid's system4228.6%54.8%
A43Woozle defence6423.4%52.3%
A44Old Benoni defence15522.6%68.7%
A44Semi-Benoni (`blockade variation')254220.8%62.4%
A45Blackmar-Diemer gambit22828.5%55.0%
A45Canard opening3122.6%53.2%
A45Paleface attack19619.9%41.6%
A45Queen's pawn game873027.7%51.6%
A45Queen's pawn, Bronstein gambit13321.1%42.9%
A45Trompovsky attack (Ruth, Opovcensky opening)1450025.9%51.3%
A46Doery defence250.0%25.0%
A46Queen's pawn game941329.5%53.7%
A46Queen's pawn, Torre attack232728.8%51.3%
A46Queen's pawn, Torre attack, Wagner gambit3826.3%39.5%
A46Queen's pawn, Yusupov-Rubinstein system174132.4%51.5%
A47Queen's Indian defence132427.6%52.8%
A47Queen's Indian, Marienbad system17829.2%48.3%
A47Queen's Indian, Marienbad system, Berg variation922.2%55.6%
A48King's Indian, East Indian defence240830.5%53.4%
A48King's Indian, London system156129.7%52.1%
A48King's Indian, Torre attack249630.4%50.5%
A49King's Indian, fianchetto without c4305229.9%53.8%
A50Kevitz-Trajkovich defence166827.5%55.3%
A50Queen's Indian accelerated61428.5%57.9%
A50Queen's pawn game314632.5%55.7%
A51Budapest defence declined12227.9%49.2%
A51Budapest, Fajarowicz variation22831.1%58.1%
A51Budapest, Fajarowicz, Steiner variation2540.0%52.0%
A52Budapest defence13829.0%52.2%
A52Budapest, Adler variation123831.7%57.4%
A52Budapest, Alekhine variation8121.0%51.2%
A52Budapest, Alekhine, Abonyi variation5726.3%57.0%
A52Budapest, Rubinstein variation130535.9%58.0%
A53Old Indian defence225529.7%54.9%
A53Old Indian, Janowski variation145421.3%56.8%
A54Old Indian, Dus-Khotimirsky variation234.3%67.4%
A54Old Indian, Ukrainian variation28528.1%53.3%
A54Old Indian, Ukrainian variation, 4.Nf339627.5%53.7%
A55Old Indian, main line168627.2%61.4%
A56Benoni defence228326.8%58.3%
A56Benoni defence, Hromodka system120621.8%58.4%
A56Czech Benoni defence97325.1%62.2%
A56Czech Benoni, King's Indian system76919.1%60.4%
A56Vulture defence30.0%33.3%
A57Benko gambit197525.5%55.1%
A57Benko gambit half accepted153529.3%58.4%
A57Benko gambit, Nescafe Frappe attack120.0%33.3%
A57Benko gambit, Zaitsev system9129.7%52.2%
A58Benko gambit accepted153732.0%55.2%
A58Benko gambit, Nd2 variation2222.7%52.3%
A58Benko gambit, fianchetto variation40930.3%55.5%
A59Benko gambit15740.8%64.3%
A59Benko gambit, 7.e41729.4%67.6%
A59Benko gambit, Ne2 variation2733.3%57.4%
A59Benko gambit, main line133535.5%64.2%
A60Benoni defence33427.8%53.1%
A61Benoni defence76625.5%58.3%
A61Benoni, Nimzovich (knight's tour) variation85925.7%57.7%
A61Benoni, Uhlmann variation11229.5%51.3%
A61Benoni, fianchetto variation7825.6%56.4%
A62Benoni, fianchetto variation263725.7%55.4%
A63Benoni, fianchetto, 9...Nbd720228.2%58.7%
A64Benoni, fianchetto, 11...Re821726.7%51.2%
A65Benoni, 6.e457227.1%60.9%
A66Benoni, Mikenas variation540.0%60.0%
A66Benoni, pawn storm variation1442.9%57.1%
A67Benoni, Taimanov variation94420.3%56.3%
A68Benoni, four pawns attack166.3%40.6%
A69Benoni, four pawns attack, main line10132.7%42.1%
A70Benoni, classical with e4 and Nf3259826.2%59.9%
A70Benoni, classical without 9.O-O1540.0%73.3%
A71Benoni, classical, 8.Bg513925.9%54.0%
A72Benoni, classical without 9.O-O14429.9%59.4%
A73Benoni, classical, 9.O-O39425.4%53.8%
A74Benoni, classical, 9...a6, 10.a43534.3%54.3%
A75Benoni, classical with ...a6 and 10...Bg425827.5%54.5%
A76Benoni, classical, 9...Re815215.8%58.6%
A77Benoni, classical, 9...Re8, 10.Nd246823.9%57.7%
A78Benoni, classical with ...Re8 and ...Na69532.6%56.3%
A79Benoni, classical, 11.f325620.7%67.0%
A80Dutch1413226.1%54.2%
A80Dutch, 2.Bg5 variation429223.2%54.0%
A80Dutch, Korchnoi attack23528.1%54.0%
A80Dutch, Krejcik gambit47128.0%46.5%
A80Dutch, Manhattan (Alapin, Ulvestad) variation23126.4%50.0%
A80Dutch, Spielmann gambit1421.4%39.3%
A80Dutch, Von Pretzel gambit2119.0%52.4%
A81Dutch defence999529.2%55.9%
A81Dutch defence, Blackburne variation11737.6%62.4%
A81Dutch, Leningrad, Karlsbad variation1729.4%61.8%
A82Dutch, Balogh defence2326.1%47.8%
A82Dutch, Staunton gambit20930.1%40.9%
A82Dutch, Staunton gambit, Tartakower variation2218.2%50.0%
A83Dutch, Staunton gambit, Alekhine variation1931.6%63.2%
A83Dutch, Staunton gambit, Chigorin variation7133.8%63.4%
A83Dutch, Staunton gambit, Lasker variation1323.1%50.0%
A83Dutch, Staunton gambit, Nimzovich variation714.3%50.0%
A83Dutch, Staunton gambit, Staunton's line28027.5%47.0%
A84Dutch defence225227.1%55.8%
A84Dutch defence, Rubinstein variation92529.1%55.3%
A84Dutch, Staunton gambit deferred2035.0%42.5%
A85Dutch with c4 & Nc3102030.4%55.3%
A86Dutch with c4 & g330427.6%61.5%
A86Dutch, Hort-Antoshin system616.7%75.0%
A86Dutch, Leningrad variation25230.6%58.5%
A87Dutch, Leningrad, main variation109027.8%59.9%
A88Dutch, Leningrad, main variation with c6304930.0%56.1%
A89Dutch, Leningrad, main variation with Nc6236926.9%58.1%
A90Dutch defence299927.7%55.6%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation55227.2%61.6%
A90Dutch-Indian, Alekhine variation13231.1%51.9%
A91Dutch defence25432.7%54.5%
A92Dutch defence15129.8%57.9%
A92Dutch defence, Alekhine variation12830.5%57.4%
A92Dutch, stonewall variation38528.1%57.9%
A92Dutch, stonewall with Nc310230.4%59.3%
A93Dutch, stonewall, Botwinnik variation28128.5%59.4%
A94Dutch, stonewall with Ba319035.8%54.2%
A95Dutch, stonewall with Nc350727.0%54.7%
A95Dutch, stonewall: Chekhover variation5036.0%56.0%
A96Dutch, classical variation59631.4%61.3%
A97Dutch, Ilyin-Genevsky variation5930.5%64.4%
A97Dutch, Ilyin-Genevsky, Winter variation19534.9%64.1%
A98Dutch, Ilyin-Genevsky variation with Qc219726.4%60.4%
A99Dutch, Ilyin-Genevsky variation with b352224.9%59.0%
B00Barnes defence2025.0%62.5%
B00Carr's defence6323.8%54.8%
B00Corn stalk defence1338.5%80.8%
B00Fred147.1%67.9%
B00Guatemala defence10.0%100.0%
B00KP, Colorado counter6320.6%50.0%
B00KP, Nimzovich defence431825.3%57.4%
B00KP, Nimzovich defence, Bogolyubov variation53123.4%58.0%
B00KP, Nimzovich defence, Marshall gambit616.7%41.7%
B00King's pawn opening520627.5%53.8%
B00Lemming defence250.0%75.0%
B00Owen defence104127.3%56.4%
B00Reversed Grob (Borg/Basman defence/macho Grob)23923.4%54.0%
B00St. George (Baker) defence20522.0%53.4%
B01Scandinavian (centre counter) defence978827.6%59.7%
B01Scandinavian defence280930.5%57.2%
B01Scandinavian defence, Gruenfeld variation1942.1%57.9%
B01Scandinavian defence, Lasker variation16327.6%64.1%
B01Scandinavian gambit23130.7%47.8%
B01Scandinavian, Anderssen counter-attack333.3%83.3%
B01Scandinavian, Anderssen counter-attack, Goteborg system50.0%100.0%
B01Scandinavian, Icelandic gambit11229.5%53.1%
B01Scandinavian, Kiel variation1225.0%62.5%
B01Scandinavian, Marshall variation152829.3%59.4%
B01Scandinavian, Mieses-Kotrvc gambit4117.1%57.3%
B01Scandinavian, Pytel-Wade variation555730.6%59.5%
B01Scandinavian, Richter variation2828.6%60.7%
B02Alekhine's defence93333.0%54.9%
B02Alekhine's defence, Brooklyn defence11224.1%62.1%
B02Alekhine's defence, Kmoch variation1631.3%46.9%
B02Alekhine's defence, Krejcik variation4231.0%36.9%
B02Alekhine's defence, Maroczy variation47323.9%48.9%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation2924.1%63.8%
B02Alekhine's defence, Saemisch attack53624.8%56.6%
B02Alekhine's defence, Scandinavian variation75227.4%55.7%
B02Alekhine's defence, Spielmann variation3234.4%51.6%
B02Alekhine's defence, Steiner variation2516.0%48.0%
B02Alekhine's defence, Two pawns' (Lasker's) attack19540.0%49.7%
B02Alekhine's defence, Two pawns' attack, Mikenas variation1020.0%60.0%
B02Alekhine's defence, Welling variation7122.5%49.3%
B03Alekhine's defence96526.0%54.4%
B03Alekhine's defence, Balogh variation8724.1%55.7%
B03Alekhine's defence, O'Sullivan gambit166.3%59.4%
B03Alekhine's defence, exchange variation132329.8%58.3%
B03Alekhine's defence, exchange, Karpov variation850.0%50.0%
B03Alekhine's defence, four pawns attack10333.0%59.2%
B03Alekhine's defence, four pawns attack, 6...Nc628820.8%50.0%
B03Alekhine's defence, four pawns attack, 7.Be335827.9%64.8%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.333.3%50.0%
B03Alekhine's defence, four pawns attack, Planinc variation922.2%88.9%
B03Alekhine's defence, four pawns attack, Tartakower variation520.0%70.0%
B03Alekhine's defence, four pawns attack, Trifunovic variation8025.0%65.0%
B03Alekhine's defence, four pawns attack, fianchetto variation6533.8%61.5%
B04Alekhine's defence, modern variation70125.7%59.9%
B04Alekhine's defence, modern, Keres variation29336.2%61.8%
B04Alekhine's defence, modern, Larsen variation237532.3%58.9%
B04Alekhine's defence, modern, Schmid variation15827.8%65.2%
B04Alekhine's defence, modern, fianchetto variation139731.5%55.1%
B05Alekhine's defence, modern variation, 4...Bg4128830.4%63.7%
B05Alekhine's defence, modern, Alekhine variation1625.0%56.3%
B05Alekhine's defence, modern, Flohr variation59328.7%63.9%
B05Alekhine's defence, modern, Panov variation4327.9%58.1%
B05Alekhine's defence, modern, Vitolins attack1822.2%38.9%
B06Norwegian defence425.0%62.5%
B06Robatsch (modern) defence1511928.8%55.7%
B06Robatsch defence201729.1%59.1%
B06Robatsch defence, Gurgenidze variation202919.5%64.3%
B06Robatsch defence, Pseudo-Austrian attack151324.3%58.5%
B06Robatsch defence, Two knights variation68630.2%58.7%
B06Robatsch defence, Two knights, Suttles variation255434.1%58.2%
B06Robatsch defence, three pawns attack18320.8%56.3%
B07Pirc defence478324.7%54.5%
B07Pirc, 150 attack115026.5%54.4%
B07Pirc, Byrne variation57526.1%56.5%
B07Pirc, Chinese variation40.0%50.0%
B07Pirc, Holmov system6530.8%50.8%
B07Pirc, Sveshnikov system225526.3%53.5%
B07Pirc, Ufimtsev-Pytel variation126025.6%55.9%
B07Pirc, bayonet (Mariotti) attack6619.7%53.8%
B07Robatsch defence, Geller's system170330.2%56.6%
B08Pirc, classical (two knights) system114828.6%56.5%
B08Pirc, classical system, 5.Be2710832.6%58.2%
B08Pirc, classical, h3 system74629.9%56.2%
B09Pirc, Austrian attack101227.4%59.8%
B09Pirc, Austrian attack, 6.Bd3621530.6%58.3%
B09Pirc, Austrian attack, 6.Be3112924.1%56.6%
B09Pirc, Austrian attack, 6.e532428.7%59.1%
B09Pirc, Austrian attack, Ljubojevic variation2025.0%62.5%
B09Pirc, Austrian attack, dragon formation177729.8%54.7%
B10Caro-Kann defence1053028.4%53.9%
B10Caro-Kann, Goldman (Spielmann) variation21523.3%50.2%
B10Caro-Kann, Hillbilly attack3735.1%58.1%
B10Caro-Kann, Two knights variation142228.6%55.6%
B10Caro-Kann, anti-Caro-Kann defence187028.5%56.9%
B10Caro-Kann, anti-anti-Caro-Kann defence364233.2%52.4%
B10Caro-Kann, closed (Breyer) variation352925.9%50.4%
B11Caro-Kann, Two knights, 3...Bg4283625.5%53.0%
B12Caro-Kann defence234822.7%57.0%
B12Caro-Kann, 3.Nd267726.0%59.2%
B12Caro-Kann, Edinburgh variation8523.5%62.4%
B12Caro-Kann, Tartakower (fantasy) variation168127.1%55.6%
B12Caro-Kann, advance variation3288426.1%54.9%
B12Caro-Kann, advance, Short variation10819.4%66.2%
B12Caro-Masi defence1414.3%50.0%
B12de Bruycker defence11231.3%63.8%
B13Caro-Kann, Panov-Botvinnik attack257334.7%53.6%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation4744.7%60.6%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1435.7%53.6%
B13Caro-Kann, Panov-Botvinnik, Herzog defence4129.3%56.1%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation1030.0%55.0%
B13Caro-Kann, Panov-Botvinnik, normal variation30936.2%48.2%
B13Caro-Kann, exchange variation155731.3%50.9%
B13Caro-Kann, exchange, Rubinstein variation29033.8%53.8%
B14Caro-Kann, Panov-Botvinnik attack, 5...e61228037.7%54.9%
B14Caro-Kann, Panov-Botvinnik attack, 5...g651238.1%53.6%
B15Caro-Kann defence79625.0%50.8%
B15Caro-Kann, Alekhine gambit3748.6%56.8%
B15Caro-Kann, Forgacs variation14037.1%53.6%
B15Caro-Kann, Gurgenidze counter-attack5416.7%56.5%
B15Caro-Kann, Gurgenidze system71829.1%56.9%
B15Caro-Kann, Rasa-Studier gambit3321.2%50.0%
B15Caro-Kann, Tartakower (Nimzovich) variation329537.9%53.2%
B16Caro-Kann, Bronstein-Larsen variation105823.1%62.8%
B17Caro-Kann, Steinitz variation615229.4%53.9%
B18Caro-Kann, classical variation253330.5%54.4%
B18Caro-Kann, classical, 6.h4396734.2%54.3%
B18Caro-Kann, classical, Flohr variation11235.7%59.8%
B18Caro-Kann, classical, Maroczy attack1050.0%65.0%
B19Caro-Kann, classical, 7...Nd7109528.2%51.7%
B19Caro-Kann, classical, Spassky variation1236830.3%57.2%
B20Sicilian defence1157625.7%48.9%
B20Sicilian, Gloria variation2718.5%50.0%
B20Sicilian, Keres variation (2.Ne2)222028.4%53.7%
B20Sicilian, Steinitz variation170626.9%54.0%
B20Sicilian, wing gambit25829.5%47.3%
B20Sicilian, wing gambit, Carlsbad variation7326.0%55.5%
B20Sicilian, wing gambit, Marienbad variation30.0%33.3%
B20Sicilian, wing gambit, Marshall variation102728.6%40.1%
B20Sicilian, wing gambit, Santasiere variation250.0%75.0%
B21Sicilian, Andreaschek gambit1942.1%57.9%
B21Sicilian, Grand Prix attack359626.1%49.2%
B21Sicilian, Smith-Morra gambit180028.1%49.5%
B22Sicilian, 2.c3, Heidenfeld variation6129.5%44.3%
B22Sicilian, Alapin's variation (2.c3)2604634.3%54.2%
B23Sicilian, Grand Prix attack72825.8%52.5%
B23Sicilian, Grand Prix attack, Schofman variation1827.8%30.6%
B23Sicilian, chameleon variation224528.2%56.3%
B23Sicilian, closed935329.3%53.1%
B23Sicilian, closed, 2...Nc6537128.8%52.5%
B23Sicilian, closed, Korchnoi variation80929.4%48.6%
B24Sicilian, closed83328.0%49.4%
B24Sicilian, closed, Smyslov variation1533.3%70.0%
B25Sicilian, closed33331.2%51.4%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)11120.7%52.7%
B25Sicilian, closed, 6.f4198032.3%49.9%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)22524.0%44.4%
B26Sicilian, closed, 6.Be376325.8%46.9%
B27Sicilian defence14531.0%59.7%
B27Sicilian, Acton extension1323.1%57.7%
B27Sicilian, Hungarian variation1105233.5%57.0%
B27Sicilian, Katalimov variation24427.5%55.9%
B27Sicilian, Quinteros variation11919.3%58.4%
B27Sicilian, Stiletto (Althouse) variation2433.3%62.5%
B28Sicilian, O'Kelly variation148328.7%57.0%
B29Sicilian, Nimzovich-Rubinstein variation92630.1%55.6%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit7837.2%57.1%
B30Sicilian defence615630.4%52.0%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)979430.1%55.2%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)562629.9%55.6%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation2128.6%47.6%
B32Sicilian defence128029.4%50.8%
B32Sicilian, Flohr variation18129.8%58.0%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation248629.6%54.6%
B32Sicilian, Labourdonnais-Loewenthal variation51533.4%51.3%
B32Sicilian, Nimzovich variation3520.0%52.9%
B33Sicilian defence142930.4%53.2%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation149925.2%53.5%
B33Sicilian, Pelikan, Bird variation51127.2%59.4%
B33Sicilian, Pelikan, Chelyabinsk variation700128.7%55.3%
B33Sicilian, Sveshnikov variation454829.9%53.0%
B34Sicilian, accelerated fianchetto, exchange variation3534.3%45.7%
B34Sicilian, accelerated fianchetto, modern variation225634.9%50.5%
B35Sicilian, accelerated fianchetto, modern variation with Bc4630434.4%54.3%
B36Sicilian, accelerated fianchetto, Gurgenidze variation39238.3%54.3%
B36Sicilian, accelerated fianchetto, Maroczy bind222338.1%56.8%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg735135.0%52.6%
B37Sicilian, accelerated fianchetto, Simagin variation1030.0%45.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3299038.7%57.1%
B39Sicilian, accelerated fianchetto, Breyer variation152933.5%60.9%
B40Sicilian defence1415631.5%52.7%
B40Sicilian, Anderssen variation314132.3%56.0%
B40Sicilian, Marshall variation3826.3%50.0%
B40Sicilian, Pin variation (Sicilian counter-attack)18924.3%52.4%
B40Sicilian, Pin, Jaffe variation911.1%61.1%
B40Sicilian, Pin, Koch variation23422.6%72.9%
B41Sicilian, Kan variation31229.2%54.6%
B41Sicilian, Kan, Maroczy bind (Reti variation)147031.8%56.7%
B41Sicilian, Kan, Maroczy bind - Bronstein variation6529.2%53.1%
B42Sicilian, Kan, 5.Bd3559230.2%56.7%
B42Sicilian, Kan, Gipslis variation19728.9%57.1%
B42Sicilian, Kan, Polugaievsky variation332026.9%54.6%
B42Sicilian, Kan, Swiss cheese variation32827.1%56.9%
B43Sicilian, Kan, 5.Nc3946329.9%55.1%
B44Sicilian defence45729.3%52.7%
B44Sicilian, Szen (`anti-Taimanov') variation107631.9%51.5%
B44Sicilian, Szen variation, Dely-Kasparov gambit2642.3%51.9%
B44Sicilian, Szen, hedgehog variation43130.4%48.1%
B45Sicilian, Taimanov variation654528.9%54.8%
B45Sicilian, Taimanov, American attack2454.2%47.9%
B46Sicilian, Taimanov variation685029.9%55.3%
B47Sicilian, Taimanov (Bastrikov) variation1211031.3%54.6%
B48Sicilian, Taimanov variation845128.7%54.3%
B49Sicilian, Taimanov variation383533.5%56.1%
B50Sicilian938230.4%52.1%
B50Sicilian, wing gambit deferred5626.8%52.7%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack434732.0%56.1%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7298537.4%51.7%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit17526.9%43.7%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation196535.3%53.4%
B53Sicilian, Chekhover variation166037.5%49.6%
B53Sicilian, Chekhover, Zaitsev variation6624.2%50.0%
B54Sicilian157929.8%53.9%
B54Sicilian, Prins (Moscow) variation61632.1%53.2%
B55Sicilian, Prins variation, Venice attack13537.0%57.0%
B56Sicilian574626.9%54.4%
B56Sicilian, Venice attack68334.3%62.5%
B57Sicilian, Magnus Smith trap4327.9%53.5%
B57Sicilian, Sozin, Benko variation541929.6%51.1%
B57Sicilian, Sozin, not Scheveningen62229.7%54.6%
B58Sicilian, Boleslavsky variation90333.4%49.2%
B58Sicilian, Boleslavsky, Louma variation4926.5%54.1%
B58Sicilian, classical76635.2%51.4%
B59Sicilian, Boleslavsky variation, 7.Nb316540.0%54.5%
B60Sicilian, Richter-Rauzer215428.5%55.8%
B60Sicilian, Richter-Rauzer, Bondarevsky variation3036.7%51.7%
B60Sicilian, Richter-Rauzer, Larsen variation37124.8%54.2%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd264428.7%60.3%
B62Sicilian, Richter-Rauzer, 6...e619126.7%48.4%
B62Sicilian, Richter-Rauzer, Keres variation56730.9%53.7%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation54732.7%50.2%
B62Sicilian, Richter-Rauzer, Podvebrady variation4334.9%52.3%
B62Sicilian, Richter-Rauzer, Richter attack20.0%50.0%
B63Sicilian, Richter-Rauzer, Rauzer attack52627.2%57.1%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7240328.7%52.3%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f467934.0%54.6%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation323.1%70.3%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4160730.7%57.0%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a61765925.5%51.5%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7839225.8%52.6%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be727228.3%54.6%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf656627.0%55.9%
B70Sicilian, dragon variation87230.6%50.3%
B71Sicilian, dragon, Levenfish variation11338.9%47.8%
B71Sicilian, dragon, Levenfish; Flohr variation1010.0%55.0%
B72Sicilian, dragon, 6.Be329827.2%51.2%
B72Sicilian, dragon, classical attack12133.1%55.4%
B72Sicilian, dragon, classical, Amsterdam variation6439.1%44.5%
B72Sicilian, dragon, classical, Grigoriev variation1250.0%66.7%
B72Sicilian, dragon, classical, Nottingham variation10131.7%44.6%
B73Sicilian, dragon, classical, 8.O-O27438.0%55.8%
B73Sicilian, dragon, classical, Richter variation26336.1%50.8%
B73Sicilian, dragon, classical, Zollner gambit2532.0%28.0%
B74Sicilian, dragon, classical, 9.Nb336141.3%50.3%
B74Sicilian, dragon, classical, Alekhine variation3823.7%61.8%
B74Sicilian, dragon, classical, Reti-Tartakower variation21033.8%52.6%
B74Sicilian, dragon, classical, Spielmann variation6628.8%53.8%
B75Sicilian, dragon, Yugoslav attack43728.4%53.3%
B76Sicilian, dragon, Yugoslav attack, 7...O-O66828.9%52.6%
B76Sicilian, dragon, Yugoslav attack, Rauser variation169626.5%59.8%
B77Sicilian, dragon, Yugoslav attack, 9...Bd747825.5%55.4%
B77Sicilian, dragon, Yugoslav attack, 9.Bc411331.9%54.0%
B77Sicilian, dragon, Yugoslav attack, Byrne variation616.7%75.0%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O196924.6%56.2%
B79Sicilian, dragon, Yugoslav attack, 12.h414630.8%64.0%
B80Sicilian, Scheveningen variation148124.0%53.9%
B80Sicilian, Scheveningen, English variation81826.8%51.8%
B80Sicilian, Scheveningen, Vitolins variation12718.1%46.1%
B80Sicilian, Scheveningen, fianchetto variation55028.2%51.5%
B81Sicilian, Scheveningen, Keres attack522225.7%59.1%
B82Sicilian, Scheveningen, 6.f483829.8%55.7%
B82Sicilian, Scheveningen, Tal variation20119.9%59.7%
B83Sicilian, Scheveningen, 6.Be288730.2%50.8%
B83Sicilian, modern Scheveningen96930.3%50.5%
B83Sicilian, modern Scheveningen, main line77136.8%52.9%
B83Sicilian, modern Scheveningen, main line with Nb316824.4%49.7%
B84Sicilian, Scheveningen (Paulsen), classical variation1196631.0%52.2%
B84Sicilian, Scheveningen, classical, Nd7 system12229.5%54.1%
B85Sicilian, Scheveningen, classical28640.6%53.1%
B85Sicilian, Scheveningen, classical main line88541.4%54.7%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc62321.7%50.0%
B85Sicilian, Scheveningen, classical, Maroczy system6833.8%55.1%
B86Sicilian, Sozin attack29027.9%46.4%
B87Sicilian, Sozin with ...a6 and ...b5141227.9%48.4%
B88Sicilian, Sozin, Fischer variation4250.0%51.2%
B88Sicilian, Sozin, Leonhardt variation74433.9%49.5%
B89Sicilian, Sozin, 7.Be3454027.1%49.1%
B89Sicilian, Velimirovic attack177024.7%50.9%
B90Sicilian, Najdorf1565125.5%51.3%
B90Sicilian, Najdorf, Adams attack391425.3%52.7%
B90Sicilian, Najdorf, Byrne (English) attack5792025.8%51.5%
B90Sicilian, Najdorf, Lipnitzky attack265428.9%49.0%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation174128.9%51.7%
B92Sicilian, Najdorf, Opovcensky variation1401531.1%52.6%
B93Sicilian, Najdorf, 6.f4279729.6%49.7%
B94Sicilian, Najdorf, 6.Bg5208226.6%53.4%
B95Sicilian, Najdorf, 6...e6251628.7%53.9%
B96Sicilian, Najdorf, 7.f4275124.3%49.8%
B96Sicilian, Najdorf, Polugayevsky variation16926.0%49.7%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation5020.0%52.0%
B97Sicilian, Najdorf, 7...Qb6351725.3%47.7%
B97Sicilian, Najdorf, Poisoned pawn variation387428.4%44.4%
B98Sicilian, Najdorf variation22625.7%50.0%
B98Sicilian, Najdorf, 7...Be729925.4%53.8%
B98Sicilian, Najdorf, Browne variation9732.0%58.2%
B98Sicilian, Najdorf, Goteborg (Argentine) variation1435.7%46.4%
B99Sicilian, Najdorf, 7...Be7 main line181422.8%54.2%
C00French defence566125.5%53.3%
C00French defence, Steiner variation146529.0%49.7%
C00French, Alapin variation6622.7%46.2%
C00French, Chigorin variation484826.5%50.9%
C00French, King's Indian attack935828.4%51.2%
C00French, Labourdonnais variation87627.3%49.3%
C00French, Pelikan variation10229.4%49.0%
C00French, Reti (Spielmann) variation45024.7%53.2%
C00French, Reversed Philidor formation8328.9%39.8%
C00French, Schlechter variation61131.4%51.6%
C00French, Steinitz attack6440.6%54.7%
C00French, Two knights variation180526.4%51.1%
C00French, Wing gambit9014.4%47.2%
C00Lengfellner system11931.1%60.9%
C00St. George defence83828.3%55.1%
C01French, exchange variation267733.0%53.0%
C01French, exchange, Bogolyubov variation1216.7%41.7%
C01French, exchange, Svenonius variation7536.0%56.7%
C02French, advance variation242825.9%53.5%
C02French, advance, Euwe variation611127.7%53.9%
C02French, advance, Milner-Barry gambit14025.7%54.3%
C02French, advance, Nimzovich system39420.8%47.5%
C02French, advance, Nimzovich variation6227.4%33.1%
C02French, advance, Paulsen attack394028.1%54.2%
C02French, advance, Steinitz variation122228.3%52.4%
C02French, advance, Wade variation42328.8%55.1%
C03French, Tarrasch372130.5%56.8%
C03French, Tarrasch, Guimard variation29726.9%59.6%
C03French, Tarrasch, Haberditz variation229.1%59.1%
C04French, Tarrasch, Guimard main line63226.4%55.9%
C05French, Tarrasch, Botvinnik variation15923.3%57.5%
C05French, Tarrasch, closed variation253624.9%57.8%
C06French, Tarrasch, Leningrad variation5418.5%55.6%
C06French, Tarrasch, closed variation, main line350934.1%56.1%
C07French, Tarrasch, Eliskases variation28742.9%54.2%
C07French, Tarrasch, open variation840934.5%52.9%
C08French, Tarrasch, open, 4.ed ed595442.3%53.8%
C09French, Tarrasch, open variation, main line234437.2%56.0%
C10French, Fort Knox variation49234.3%53.8%
C10French, Frere (Becker) variation6930.4%55.8%
C10French, Marshall variation1435.7%67.9%
C10French, Paulsen variation211427.9%56.1%
C10French, Rubinstein variation1297836.2%53.9%
C10French, Rubinstein, Capablanca line2733.3%57.4%
C11French defence69126.6%49.8%
C11French, Burn variation1187532.6%52.2%
C11French, Henneberger variation3336.4%36.4%
C11French, Steinitz variation230226.2%55.4%
C11French, Steinitz, Boleslavsky variation1110628.5%54.7%
C11French, Steinitz, Bradford attack30.0%33.3%
C11French, Steinitz, Gledhill attack5438.9%52.8%
C11French, Swiss variation15632.1%44.9%
C12French, MacCutcheon variation31730.6%51.9%
C12French, MacCutcheon, Bernstein variation2913.8%51.7%
C12French, MacCutcheon, Bogolyubov variation616.7%75.0%
C12French, MacCutcheon, Chigorin variation5733.3%51.8%
C12French, MacCutcheon, Dr. Olland (Dutch) variation4129.3%53.7%
C12French, MacCutcheon, Duras variation366.7%66.7%
C12French, MacCutcheon, Grigoriev variation1060.0%50.0%
C12French, MacCutcheon, Janowski variation18325.1%59.0%
C12French, MacCutcheon, Lasker variation56221.9%52.4%
C12French, MacCutcheon, Lasker variation, 8...g686125.0%54.9%
C12French, MacCutcheon, Tartakower variation450.0%50.0%
C12French, MacCutcheon, advance variation1435.7%53.6%
C13French, Albin-Alekhine-Chatard attack82319.8%56.6%
C13French, Albin-Alekhine-Chatard attack, Breyer variation10126.7%55.9%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1030.0%35.0%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation7530.7%59.3%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation1020.0%80.0%
C13French, classical2814.3%50.0%
C13French, classical, Anderssen variation4721.3%38.3%
C13French, classical, Anderssen-Richter variation1315.4%30.8%
C13French, classical, Frankfurt variation1618.8%84.4%
C13French, classical, Tartakower variation3030.0%51.7%
C13French, classical, Vistaneckis (Nimzovich) variation616.7%58.3%
C14French, classical variation2917.2%32.8%
C14French, classical, Alapin variation10237.3%58.8%
C14French, classical, Pollock variation2025.0%47.5%
C14French, classical, Rubinstein variation5621.4%55.4%
C14French, classical, Stahlberg variation540.0%60.0%
C14French, classical, Steinitz variation109927.9%58.1%
C14French, classical, Tarrasch variation850.0%62.5%
C15French, Winawer (Nimzovich) variation164033.6%53.8%
C15French, Winawer, Alekhine (Maroczy) gambit60829.6%56.9%
C15French, Winawer, Alekhine gambit128.3%54.2%
C15French, Winawer, Alekhine gambit, Alatortsev variation1100.0%50.0%
C15French, Winawer, Alekhine gambit, Kan variation20734.3%49.0%
C15French, Winawer, Kondratiyev variation1637.5%62.5%
C15French, Winawer, fingerslip variation7118.3%57.0%
C16French, Winawer, Petrosian variation43824.9%53.5%
C16French, Winawer, advance variation136025.3%56.3%
C17French, Winawer, advance variation12025.0%60.8%
C17French, Winawer, advance, 5.a381425.4%57.4%
C17French, Winawer, advance, Bogolyubov variation35330.9%56.2%
C17French, Winawer, advance, Rauzer variation955.6%50.0%
C17French, Winawer, advance, Russian variation8627.9%51.2%
C18French, Winawer, advance variation94020.6%58.4%
C18French, Winawer, classical variation83721.3%56.5%
C19French, Winawer, advance, 6...Ne7125725.8%62.5%
C19French, Winawer, advance, Smyslov variation29526.1%60.2%
C19French, Winawer, advance, poisoned pawn variation564824.0%59.3%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation1450.0%53.6%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation155426.0%60.3%
C19French, Winawer, advance, positional main line317524.8%58.0%
C20Alapin's opening13824.6%52.2%
C20KP, Indian opening38630.6%50.3%
C20KP, King's head opening1735.3%58.8%
C20KP, Lopez opening6835.3%45.6%
C20KP, Mengarini's opening9823.5%56.6%
C20KP, Napoleon's opening1741.2%50.0%
C20KP, Patzer opening11532.2%43.9%
C20King's pawn game36124.7%51.4%
C21Centre game46032.4%55.1%
C21Danish gambit11338.1%51.8%
C21Danish gambit, Collijn defence40.0%50.0%
C21Danish gambit, Schlechter defence425.0%37.5%
C21Danish gambit, Soerensen defence8733.3%51.1%
C21Halasz gambit8135.8%38.9%
C22Centre game7321.9%50.7%
C22Centre game, Berger variation48627.6%52.9%
C22Centre game, Charousek variation1225.0%45.8%
C22Centre game, Hall variation1833.3%44.4%
C22Centre game, Paulsen attack26335.4%50.4%
C22Centre game, l'Hermet variation450.0%75.0%
C23Bishop's opening58727.1%51.0%
C23Bishop's opening, Calabrese counter-gambit333.3%16.7%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation1711.8%64.7%
C23Bishop's opening, Classical variation17421.8%48.9%
C23Bishop's opening, Lewis counter-gambit633.3%50.0%
C23Bishop's opening, Lewis gambit933.3%38.9%
C23Bishop's opening, Lisitsyn variation1100.0%50.0%
C23Bishop's opening, Philidor counter-attack20035.5%57.3%
C23Bishop's opening, Philidor variation2123.8%54.8%
C23Bishop's opening, Wing gambit425.0%87.5%
C24Bishop's opening, Berlin defence266828.8%52.1%
C24Bishop's opening, Ponziani gambit3324.2%36.4%
C24Bishop's opening, Urusov gambit5529.1%49.1%
C24Bishop's opening, Urusov gambit, Panov variation812.5%56.3%
C25Vienna gambit16025.0%51.9%
C25Vienna game104026.2%53.5%
C25Vienna game, Max Lange defence14922.8%50.3%
C25Vienna, Hamppe-Allgaier gambit520.0%30.0%
C25Vienna, Paulsen variation151322.9%52.3%
C25Vienna, Pierce gambit2814.3%42.9%
C25Vienna, Steinitz gambit540.0%60.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation1118.2%36.4%
C25Vienna, Steinitz gambit, Zukertort defence250.0%75.0%
C26Vienna game60926.9%52.4%
C26Vienna, Falkbeer variation19721.8%52.0%
C26Vienna, Mengarini variation5933.9%52.5%
C26Vienna, Paulsen-Mieses variation217029.6%50.7%
C27Boden-Kieseritsky gambit6719.4%47.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence1233.3%41.7%
C27Vienna game56627.7%49.4%
C27Vienna, Alekhine variation25325.3%46.2%
C27Vienna, `Frankenstein-Dracula' variation4226.2%56.0%
C28Vienna game50932.0%50.6%
C29Vienna gambit63029.2%46.2%
C29Vienna gambit, Bardeleben variation1729.4%32.4%
C29Vienna gambit, Breyer variation28230.9%54.4%
C29Vienna gambit, Heyde variation10.0%0.0%
C29Vienna gambit, Kaufmann variation1435.7%60.7%
C29Vienna gambit, Paulsen attack5437.0%55.6%
C29Vienna gambit, Steinitz variation4027.5%48.8%
C30KGD, 2...Nf69524.2%52.1%
C30KGD, Keene's defence11225.0%55.4%
C30KGD, Mafia defence14825.7%63.5%
C30KGD, Norwalde variation2030.0%50.0%
C30KGD, classical counter-gambit1816.7%52.8%
C30KGD, classical variation35024.9%49.0%
C30KGD, classical, 4.c343928.7%55.8%
C30KGD, classical, Hanham variation450.0%25.0%
C30KGD, classical, Heath variation2138.1%38.1%
C30KGD, classical, Marshall attack1838.9%52.8%
C30KGD, classical, Reti variation616.7%75.0%
C30KGD, classical, Soldatenkov variation2133.3%50.0%
C30KGD, classical, Svenonius variation520.0%50.0%
C30King's gambit40227.4%53.2%
C31KGD, Falkbeer counter-gambit19722.8%48.5%
C31KGD, Falkbeer, 3...e43023.3%48.3%
C31KGD, Falkbeer, 4.d32544.0%62.0%
C31KGD, Falkbeer, Morphy gambit1338.5%65.4%
C31KGD, Falkbeer, Nimzovich variation119.1%31.8%
C31KGD, Falkbeer, Rubinstein variation1136.4%36.4%
C31KGD, Falkbeer, Tartakower variation2733.3%72.2%
C31KGD, Nimzovich counter-gambit15228.9%48.7%
C32KGD, Falkbeer, 5.de6731.3%53.0%
C32KGD, Falkbeer, Charousek gambit40.0%75.0%
C32KGD, Falkbeer, Charousek variation10.0%0.0%
C32KGD, Falkbeer, Keres variation1100.0%50.0%
C32KGD, Falkbeer, Reti variation3026.7%50.0%
C32KGD, Falkbeer, Tarrasch variation10.0%100.0%
C32KGD, Falkbeer, main line, 7...Bf51275.0%37.5%
C33KGA, Breyer gambit3930.8%35.9%
C33KGA, Carrera (Basman) gambit5334.0%43.4%
C33KGA, Keres (Mason-Steinitz) gambit8512.9%45.3%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit2913.8%44.8%
C33KGA, Lopez-Gianutio counter-gambit, Hein variation250.0%75.0%
C33KGA, Villemson (Steinitz) gambit1428.6%50.0%
C33KGA, bishop's gambit29222.9%51.9%
C33KGA, bishop's gambit, Anderssen variation812.5%81.3%
C33KGA, bishop's gambit, Bledow variation11036.4%47.3%
C33KGA, bishop's gambit, Boden defence1513.3%40.0%
C33KGA, bishop's gambit, Bogolyubov variation6923.2%47.8%
C33KGA, bishop's gambit, Boren-Svenonius variation30.0%66.7%
C33KGA, bishop's gambit, Bryan counter-gambit933.3%50.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence5827.6%41.4%
C33KGA, bishop's gambit, Jaenisch variation27424.8%51.5%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit3721.6%29.7%
C33KGA, bishop's gambit, Maurian defence4027.5%46.3%
C33KGA, bishop's gambit, McDonnell attack250.0%75.0%
C33KGA, bishop's gambit, Morphy variation20926.3%47.6%
C33KGA, bishop's gambit, Paulsen attack1926.3%44.7%
C33KGA, bishop's gambit, Ruy Lopez defence4119.5%51.2%
C33KGA, bishop's gambit, Steinitz defence14527.6%49.0%
C33KGA, bishop's gambit, classical defence1711.8%29.4%
C33King's gambit accepted1520.0%56.7%
C34KGA, Becker defence9616.7%43.8%
C34KGA, Bonsch-Osmolovsky variation10231.4%50.0%
C34KGA, Fischer defence41121.7%46.6%
C34KGA, Gianutio counter-gambit10.0%0.0%
C34KGA, Schallop defence18522.2%51.6%
C34King's knight's gambit10715.9%45.3%
C35KGA, Cunningham defence18821.8%50.3%
C35KGA, Cunningham, Bertin gambit20.0%50.0%
C35KGA, Cunningham, Euwe defence10433.7%49.5%
C36KGA, Abbazia defence (classical defence, modern defence[!])7828.2%52.6%
C36KGA, Abbazia defence, Botvinnik variation20.0%100.0%
C36KGA, Abbazia defence, modern variation40430.2%47.5%
C37KGA, Blachly gambit2718.5%27.8%
C37KGA, Ghulam Kassim gambit10.0%0.0%
C37KGA, King's knight's gambit1030.0%55.0%
C37KGA, Lolli gambit (wild Muzio gambit)1100.0%50.0%
C37KGA, MacDonnell gambit250.0%75.0%
C37KGA, Muzio gambit128.3%12.5%
C37KGA, Quaade gambit3915.4%25.6%
C37KGA, Rosentreter gambit1145.5%50.0%
C37KGA, Salvio gambit1428.6%42.9%
C37KGA, Salvio gambit, Anderssen counter-attack40.0%25.0%
C37KGA, Silberschmidt gambit425.0%12.5%
C37KGA, double Muzio gambit10.0%0.0%
C38KGA, Hanstein gambit2524.0%40.0%
C38KGA, Philidor gambit60.0%33.3%
C38KGA, Philidor gambit, Schultz variation50.0%20.0%
C38King's knight's gambit1323.1%50.0%
C39KGA, Allgaier gambit10.0%100.0%
C39KGA, Kieseritsky, Berlin defence8518.8%41.2%
C39KGA, Kieseritsky, Berlin defence, 6.Bc49830.6%42.9%
C39KGA, Kieseritsky, Brentano (Campbell) defence20.0%100.0%
C39KGA, Kieseritsky, Kolisch defence17631.3%48.6%
C39KGA, Kieseritsky, Neumann defence119.1%59.1%
C39KGA, Kieseritsky, Paulsen defence540.0%40.0%
C39KGA, Kieseritsky, Rice gambit2250.0%25.0%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence3148.4%46.8%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence10.0%100.0%
C39King's knight's gambit30.0%33.3%
C40Damiano's defence2927.6%55.2%
C40Greco defence10419.2%63.5%
C40Gunderam defence33526.3%62.4%
C40King's knight opening616.7%41.7%
C40Latvian counter-gambit26329.7%57.4%
C40Latvian gambit, 3.Bc41030.0%75.0%
C40Latvian, Fraser defence2711.1%57.4%
C40Latvian, Polerio variation60.0%33.3%
C40QP counter-gambit (elephant gambit)22518.2%63.3%
C40QP counter-gambit, Maroczy gambit7525.3%60.7%
C41Philidor's defence83229.9%55.1%
C41Philidor, Boden variation4721.3%51.1%
C41Philidor, Hanham variation12936.4%55.4%
C41Philidor, Hanham, Delmar variation1233.3%66.7%
C41Philidor, Hanham, Kmoch variation20.0%50.0%
C41Philidor, Hanham, Krause variation3732.4%62.2%
C41Philidor, Hanham, Schlechter variation8727.6%59.8%
C41Philidor, Hanham, Steiner variation3531.4%67.1%
C41Philidor, Improved Hanham variation138627.3%56.3%
C41Philidor, Larsen variation12127.3%64.0%
C41Philidor, Lopez counter-gambit1513.3%80.0%
C41Philidor, Nimzovich (Jaenisch) variation10231.4%48.0%
C41Philidor, Nimzovich variation4233.3%57.1%
C41Philidor, Nimzovich, Klein variation1711.8%64.7%
C41Philidor, Nimzovich, Larobok variation5141.2%34.3%
C41Philidor, Nimzovich, Locock variation20.0%50.0%
C41Philidor, Nimzovich, Rellstab variation11530.4%63.9%
C41Philidor, Nimzovich, Sokolsky variation520.0%50.0%
C41Philidor, Nimzovich, Sozin variation4517.8%48.9%
C41Philidor, Paulsen attack40.0%100.0%
C41Philidor, Philidor counter-gambit3923.1%52.6%
C41Philidor, Philidor counter-gambit, Zukertort variation1931.6%57.9%
C41Philidor, Philidor counter-gambit, del Rio attack540.0%60.0%
C41Philidor, Steinitz variation2025.0%52.5%
C41Philidor, exchange variation294827.4%57.7%
C42Petrov three knights game98428.5%55.0%
C42Petrov's defence124026.9%53.8%
C42Petrov, Cochrane gambit5820.7%44.8%
C42Petrov, Cozio (Lasker) attack30532.8%51.8%
C42Petrov, Damiano variation5437.0%53.7%
C42Petrov, French attack1618.8%65.6%
C42Petrov, Italian variation16520.0%51.8%
C42Petrov, Kaufmann attack38732.0%55.6%
C42Petrov, Nimzovich attack106135.3%52.7%
C42Petrov, Paulsen attack47326.8%50.4%
C42Petrov, classical attack448237.3%57.1%
C42Petrov, classical attack, Berger variation3333.3%50.0%
C42Petrov, classical attack, Chigorin variation214838.2%55.6%
C42Petrov, classical attack, Jaenisch variation604539.2%56.7%
C42Petrov, classical attack, Krause variation366.7%66.7%
C42Petrov, classical attack, Marshall variation272430.9%55.4%
C42Petrov, classical attack, Mason variation12839.8%66.0%
C42Petrov, classical attack, Tarrasch variation1136.4%72.7%
C42Petrov, classical attack, close variation23532.3%54.0%
C43Petrov, Urusov gambit468.7%45.7%
C43Petrov, modern (Steinitz) attack16623.5%60.5%
C43Petrov, modern attack, Bardeleben variation1816.7%63.9%
C43Petrov, modern attack, Steinitz variation1127.3%59.1%
C43Petrov, modern attack, Symmetrical variation996635.9%54.3%
C43Petrov, modern attack, Trifunovic variation9234.8%51.1%
C43Petrov, modern attack, main line66632.1%58.0%
C44Dresden opening6421.9%45.3%
C44Inverted Hanham6526.2%48.5%
C44Inverted Hungarian9437.2%50.5%
C44King's pawn game12729.1%49.2%
C44Konstantinopolsky opening7327.4%47.9%
C44Ponziani counter-gambit40421.5%52.6%
C44Ponziani counter-gambit, Cordel variation10.0%100.0%
C44Ponziani counter-gambit, Schmidt attack20.0%0.0%
C44Ponziani opening29726.9%57.9%
C44Ponziani, Caro variation17529.7%49.7%
C44Ponziani, Fraser defence450.0%25.0%
C44Ponziani, Jaenisch counter-attack104430.0%47.6%
C44Ponziani, Leonhardt variation9133.0%47.3%
C44Ponziani, Reti variation166.3%53.1%
C44Ponziani, Romanishin variation1850.0%69.4%
C44Ponziani, Steinitz variation17434.5%50.6%
C44Scotch gambit12924.8%51.2%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack3100.0%50.0%
C44Scotch gambit, Benima defence6829.4%50.0%
C44Scotch gambit, Dubois-Reti defence94429.6%49.2%
C44Scotch opening8929.2%46.1%
C44Scotch, Goering gambit22229.7%49.5%
C44Scotch, Goering gambit, Bardeleben variation1421.4%39.3%
C44Scotch, Lolli variation8622.1%52.9%
C44Scotch, Relfsson gambit ('MacLopez')5213.5%47.1%
C44Tayler opening1346.2%30.8%
C45Scotch game494431.9%53.2%
C45Scotch, Blackburne attack2552.0%58.0%
C45Scotch, Blumenfeld attack1553.3%26.7%
C45Scotch, Fraser attack10.0%100.0%
C45Scotch, Ghulam Kassim variation1050.0%55.0%
C45Scotch, Horwitz attack3836.8%55.3%
C45Scotch, Meitner variation4334.9%52.3%
C45Scotch, Mieses variation259633.9%50.7%
C45Scotch, Paulsen attack3046.7%40.0%
C45Scotch, Potter variation42335.2%48.8%
C45Scotch, Pulling counter-attack3522.9%51.4%
C45Scotch, Romanishin variation4025.0%45.0%
C45Scotch, Rosenthal variation10.0%0.0%
C45Scotch, Schmidt variation165142.9%50.6%
C45Scotch, Steinitz variation6826.5%47.1%
C45Scotch, Tartakower variation2429.2%52.1%
C46Four knights game163830.6%51.2%
C46Four knights, Gunsberg variation19033.7%48.9%
C46Four knights, Italian variation55230.8%49.6%
C46Four knights, Schultze-Mueller gambit3132.3%38.7%
C46Three knights game45926.4%54.4%
C46Three knights, Schlechter variation2634.6%63.5%
C46Three knights, Steinitz variation26024.2%52.9%
C46Three knights, Steinitz, Rosenthal variation2454.2%60.4%
C47Four knights, Belgrade gambit35322.9%46.6%
C47Four knights, Scotch variation7339.7%59.6%
C47Four knights, Scotch, 4...exd488636.2%50.8%
C47Four knights, Scotch, Krause variation34631.8%54.9%
C48Four knights, Bardeleben variation922.2%55.6%
C48Four knights, Marshall variation1711.8%47.1%
C48Four knights, Ranken variation3225.0%43.8%
C48Four knights, Rubinstein counter-gambit192425.8%53.3%
C48Four knights, Rubinstein counter-gambit, 5.Be21735.3%52.9%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1735.3%52.9%
C48Four knights, Rubinstein counter-gambit, Henneberger variation5335.8%63.2%
C48Four knights, Rubinstein counter-gambit, exchange variation14843.9%49.0%
C48Four knights, Spanish variation41128.2%51.8%
C48Four knights, Spanish, classical defence24332.5%49.6%
C48Four knights, Spielmann variation633.3%50.0%
C49Four knights13835.5%51.1%
C49Four knights, Gunsberg counter-attack250.0%75.0%
C49Four knights, Janowski variation2138.1%38.1%
C49Four knights, Nimzovich (Paulsen) variation9043.3%55.0%
C49Four knights, Svenonius variation30.0%66.7%
C49Four knights, double Ruy Lopez42641.1%56.7%
C49Four knights, symmetrical variation58231.1%49.9%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C49Four knights, symmetrical, Capablanca variation3342.4%57.6%
C49Four knights, symmetrical, Maroczy system9440.4%53.2%
C49Four knights, symmetrical, Metger unpin49235.0%52.2%
C49Four knights, symmetrical, Pillsbury variation5026.0%43.0%
C49Four knights, symmetrical, Tarrasch variation540.0%60.0%
C50Giuoco Pianissimo349132.2%51.7%
C50Giuoco Pianissimo, Canal variation25431.5%51.2%
C50Giuoco Pianissimo, Italian four knights variation61630.0%55.3%
C50Giuoco Piano478932.3%51.5%
C50Giuoco Piano, four knights variation15328.1%50.0%
C50Hungarian defence17637.5%52.8%
C50King's pawn game49423.5%54.9%
C50Rousseau gambit70.0%71.4%
C51Evans counter-gambit50.0%40.0%
C51Evans gambit1618.8%28.1%
C51Evans gambit declined4434.1%48.9%
C51Evans gambit declined, 5.a411628.4%48.7%
C51Evans gambit declined, Cordel variation1428.6%28.6%
C51Evans gambit declined, Showalter variation2733.3%46.3%
C51Evans gambit, 5...Be71540.0%46.7%
C51Evans gambit, Cordel variation26531.3%49.6%
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 variation6720.9%46.3%
C51Evans gambit, normal variation1435.7%46.4%
C52Evans gambit36324.5%39.5%
C52Evans gambit, Alapin-Steinitz variation450.0%75.0%
C52Evans gambit, Lasker defence1040.0%50.0%
C52Evans gambit, Leonhardt variation475.0%62.5%
C52Evans gambit, Levenfish variation250.0%25.0%
C52Evans gambit, Richardson attack616.7%25.0%
C52Evans gambit, Sokolsky variation10.0%0.0%
C52Evans gambit, Tartakower attack20327.6%48.8%
C52Evans gambit, Waller attack616.7%41.7%
C52Evans gambit, compromised defence4513.3%53.3%
C52Evans gambit, compromised defence, Paulsen variation1625.0%68.8%
C53Giuoco Piano918030.0%52.4%
C53Giuoco Piano, Anderssen variation9040.0%52.2%
C53Giuoco Piano, Bird's attack16328.2%50.3%
C53Giuoco Piano, LaBourdonnais variation2544.0%66.0%
C53Giuoco Piano, Mestel variation616.7%58.3%
C53Giuoco Piano, Tarrasch variation425.0%62.5%
C53Giuoco Piano, centre-holding variation4719.1%56.4%
C53Giuoco Piano, close variation10524.8%53.3%
C54Giuoco Piano25928.6%54.4%
C54Giuoco Piano, Cracow variation10.0%100.0%
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 defence21429.0%48.6%
C55Two knights defence (Modern bishop's opening)160830.5%55.5%
C55Two knights defence, Keidanz variation1100.0%50.0%
C55Two knights defence, Perreux variation4032.5%51.3%
C55Two knights, Max Lange attack19523.6%47.7%
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 variation19827.8%51.8%
C55Two knights, Max Lange attack, Steinitz variation1020.0%60.0%
C56Two knights defence8434.5%51.8%
C56Two knights defence, Canal variation2748.1%42.6%
C57Two knights defence7922.8%38.0%
C57Two knights defence, Fegatello attack7936.7%46.2%
C57Two knights defence, Fegatello attack, Leonhardt variation30.0%0.0%
C57Two knights defence, Fegatello attack, Polerio defence20.0%0.0%
C57Two knights defence, Fritz variation2416.7%62.5%
C57Two knights defence, Fritz, Gruber variation1833.3%55.6%
C57Two knights defence, Lolli attack6021.7%64.2%
C57Two knights defence, Pincus variation6339.7%59.5%
C57Two knights defence, Ulvestad variation5825.9%54.3%
C57Two knights defence, Wilkes Barre (Traxler) variation9419.1%60.6%
C58Two knights defence49426.9%55.6%
C58Two knights defence, Blackburne variation450.0%75.0%
C58Two knights defence, Bogolyubov variation10520.0%58.6%
C58Two knights defence, Colman variation119.1%77.3%
C58Two knights defence, Kieseritsky variation4030.0%55.0%
C58Two knights defence, Paoli variation1513.3%66.7%
C58Two knights defence, Yankovich variation540.0%40.0%
C59Two knights defence19126.2%48.7%
C59Two knights defence, Goering variation20.0%50.0%
C59Two knights defence, Knorre variation1100.0%50.0%
C59Two knights defence, Steinitz variation24626.0%55.7%
C60Ruy Lopez (Spanish opening)23227.6%51.7%
C60Ruy Lopez, Brentano defence616.7%58.3%
C60Ruy Lopez, Cozio defence81630.1%58.2%
C60Ruy Lopez, Cozio defence, Paulsen variation4942.9%54.1%
C60Ruy Lopez, Lucena defence2825.0%48.2%
C60Ruy Lopez, Nuernberg variation2646.2%42.3%
C60Ruy Lopez, Vinogradov variation933.3%50.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence67434.9%54.1%
C61Ruy Lopez, Bird's defence60730.1%55.9%
C61Ruy Lopez, Bird's defence, Paulsen variation1827.8%47.2%
C62Ruy Lopez, old Steinitz defence83427.7%55.8%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack2817.9%69.6%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation1127.3%59.1%
C63Ruy Lopez, Schliemann defence63429.2%57.0%
C63Ruy Lopez, Schliemann defence, Berger variation99532.9%55.1%
C64Ruy Lopez, Cordel gambit9023.3%60.6%
C64Ruy Lopez, classical (Cordel) defence92533.1%52.8%
C64Ruy Lopez, classical defence, 4.c351627.9%54.1%
C64Ruy Lopez, classical defence, Benelux variation 63333.6%50.8%
C64Ruy Lopez, classical defence, Boden variation2100.0%50.0%
C64Ruy Lopez, classical defence, Charousek variation3125.8%61.3%
C64Ruy Lopez, classical defence, Zaitsev variation933.3%38.9%
C65Ruy Lopez, Berlin defence790231.7%51.5%
C65Ruy Lopez, Berlin defence, 4.O-O34433.4%62.4%
C65Ruy Lopez, Berlin defence, Anderssen variation1040.0%20.0%
C65Ruy Lopez, Berlin defence, Beverwijk variation67429.7%54.9%
C65Ruy Lopez, Berlin defence, Duras variation3737.8%48.6%
C65Ruy Lopez, Berlin defence, Kaufmann variation1225.0%45.8%
C65Ruy Lopez, Berlin defence, Mortimer variation2718.5%61.1%
C65Ruy Lopez, Berlin defence, Nyholm attack9535.8%52.6%
C66Ruy Lopez, Berlin defence, 4.O-O, d613438.8%56.0%
C66Ruy Lopez, Berlin defence, hedgehog variation17540.0%52.6%
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 variation6847.1%60.3%
C66Ruy Lopez, closed Berlin defence, Wolf variation16136.6%56.8%
C67Ruy Lopez, Berlin defence, Cordel variation6643.9%55.3%
C67Ruy Lopez, Berlin defence, Minckwitz variation6541.5%63.8%
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 variation6342.9%56.3%
C67Ruy Lopez, Berlin defence, Trifunovic variation30.0%100.0%
C67Ruy Lopez, Berlin defence, Winawer attack1172.7%45.5%
C67Ruy Lopez, Berlin defence, Zukertort variation1947.4%50.0%
C67Ruy Lopez, Berlin defence, open variation1206536.8%53.0%
C67Ruy Lopez, open Berlin defence, 5...Be713635.3%55.9%
C67Ruy Lopez, open Berlin defence, Showalter variation633.3%66.7%
C67Ruy Lopez, open Berlin defence, l'Hermet variation10836.1%44.0%
C68Ruy Lopez, exchange variation71431.4%54.3%
C68Ruy Lopez, exchange, Alekhine variation26554.3%42.6%
C68Ruy Lopez, exchange, Keres variation33236.4%51.1%
C68Ruy Lopez, exchange, Romanovsky variation2128.6%57.1%
C69Ruy Lopez, exchange variation, 5.O-O91731.0%54.9%
C69Ruy Lopez, exchange variation, Alapin gambit16531.5%53.3%
C69Ruy Lopez, exchange, Bronstein variation60630.0%51.3%
C69Ruy Lopez, exchange, Gligoric variation65835.1%53.9%
C70Ruy Lopez33134.7%51.2%
C70Ruy Lopez, Alapin's defence deferred70.0%42.9%
C70Ruy Lopez, Caro variation18236.3%57.7%
C70Ruy Lopez, Classical defence deferred55827.1%52.2%
C70Ruy Lopez, Cozio defence deferred53531.6%53.9%
C70Ruy Lopez, Graz variation1136.4%54.5%
C70Ruy Lopez, Schliemann defence deferred7027.1%50.7%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation26226.7%55.0%
C70Ruy Lopez, fianchetto defence deferred4936.7%57.1%
C71Ruy Lopez, modern Steinitz defence16727.5%52.7%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation24330.0%52.1%
C71Ruy Lopez, modern Steinitz defence, Three knights variation2825.0%58.9%
C72Ruy Lopez, modern Steinitz defence, 5.O-O61330.3%56.0%
C73Ruy Lopez, modern Steinitz defence, Alapin variation33627.1%54.6%
C73Ruy Lopez, modern Steinitz defence, Richter variation25332.4%50.6%
C74Ruy Lopez, Siesta, Kopayev variation16227.2%54.3%
C74Ruy Lopez, modern Steinitz defence9534.7%56.3%
C74Ruy Lopez, modern Steinitz defence, siesta variation8028.8%41.9%
C75Ruy Lopez, modern Steinitz defence38027.9%58.7%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation15133.1%59.6%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation67028.4%50.9%
C77Ruy Lopez, Anderssen variation185031.3%50.2%
C77Ruy Lopez, Morphy defence42233.6%54.5%
C77Ruy Lopez, Morphy defence, Duras variation11531.3%47.8%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)21130.3%52.1%
C77Ruy Lopez, Wormald (Alapin) attack71433.2%50.8%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C77Ruy Lopez, four knights (Tarrasch) variation32630.7%56.1%
C78Ruy Lopez, ...b5 & ...d610726.2%47.7%
C78Ruy Lopez, 5.O-O429633.8%55.0%
C78Ruy Lopez, Archangelsk (counterthrust) variation499830.6%54.2%
C78Ruy Lopez, Moeller defence92530.5%52.9%
C78Ruy Lopez, Rabinovich variation10.0%100.0%
C78Ruy Lopez, Wing attack2540.0%60.0%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)40133.4%52.4%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1942.1%47.4%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1520.0%70.0%
C80Ruy Lopez, open (Tarrasch) defence13339.1%48.9%
C80Ruy Lopez, open, 6.d44928.6%59.2%
C80Ruy Lopez, open, 6.d4 b510.0%100.0%
C80Ruy Lopez, open, 7.Bb359631.9%52.9%
C80Ruy Lopez, open, 8...Be6172532.7%46.0%
C80Ruy Lopez, open, 8.de2020.0%55.0%
C80Ruy Lopez, open, Berger variation666.7%33.3%
C80Ruy Lopez, open, Bernstein variation129039.6%59.5%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit1163.6%68.2%
C80Ruy Lopez, open, Friess attack944.4%33.3%
C80Ruy Lopez, open, Harksen gambit50.0%60.0%
C80Ruy Lopez, open, Richter variation30.0%33.3%
C80Ruy Lopez, open, Riga variation4129.3%58.5%
C80Ruy Lopez, open, Schlechter defence2536.0%30.0%
C80Ruy Lopez, open, Tartakower variation1637.5%56.3%
C80Ruy Lopez, open, Zukertort variation714.3%50.0%
C81Ruy Lopez, open, Howell attack12640.5%59.9%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1752.9%61.8%
C82Ruy Lopez, open, 9.c31020.0%70.0%
C82Ruy Lopez, open, Berlin variation2236.4%59.1%
C82Ruy Lopez, open, Dilworth variation15433.1%51.6%
C82Ruy Lopez, open, Italian variation11437.7%62.7%
C82Ruy Lopez, open, Motzko attack10340.8%56.3%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation850.0%37.5%
C82Ruy Lopez, open, St. Petersburg variation35937.3%59.6%
C83Ruy Lopez, open, 9...Be7, 10.Re12532.0%52.0%
C83Ruy Lopez, open, Breslau variation837.5%68.8%
C83Ruy Lopez, open, Malkin variation1428.6%71.4%
C83Ruy Lopez, open, classical defence28139.1%56.9%
C84Ruy Lopez, closed defence156132.5%51.1%
C84Ruy Lopez, closed, centre attack23931.0%49.8%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)199231.6%52.8%
C86Ruy Lopez, Worrall attack10727.1%58.4%
C86Ruy Lopez, Worrall attack, sharp line30232.8%49.8%
C86Ruy Lopez, Worrall attack, solid line27431.8%50.5%
C87Ruy Lopez, closed, Averbach variation39630.1%57.2%
C88Ruy Lopez, Noah's ark trap50.0%60.0%
C88Ruy Lopez, Trajkovic counter-attack29726.3%53.5%
C88Ruy Lopez, closed439127.6%48.3%
C88Ruy Lopez, closed, 7...O-O1140231.1%51.8%
C88Ruy Lopez, closed, 7...d6, 8.d413623.5%38.2%
C88Ruy Lopez, closed, 8.c35324.5%53.8%
C88Ruy Lopez, closed, Balla variation2937.9%63.8%
C88Ruy Lopez, closed, anti-Marshall 8.a4186630.6%52.2%
C89Ruy Lopez, Marshall counter-attack533536.1%51.8%
C89Ruy Lopez, Marshall counter-attack, 11...c6157538.6%48.3%
C89Ruy Lopez, Marshall, Herman Steiner variation5111.8%54.9%
C89Ruy Lopez, Marshall, Kevitz variation2630.8%57.7%
C89Ruy Lopez, Marshall, main line, 12.d2d4173128.4%54.5%
C89Ruy Lopez, Marshall, main line, 14...Qh3138441.5%47.5%
C89Ruy Lopez, Marshall, main line, Spassky variation2100.0%50.0%
C90Ruy Lopez, closed (with ...d6)256027.9%49.4%
C90Ruy Lopez, closed, Lutikov variation2948.3%51.7%
C90Ruy Lopez, closed, Pilnik variation331326.2%52.6%
C90Ruy Lopez, closed, Suetin variation6827.9%50.7%
C91Ruy Lopez, closed, 9.d4427127.8%56.2%
C91Ruy Lopez, closed, Bogolyubov variation715833.7%51.9%
C92Ruy Lopez, closed, 9.h358227.3%55.2%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)439333.6%55.2%
C92Ruy Lopez, closed, Keres (9...a5) variation5123.5%58.8%
C92Ruy Lopez, closed, Kholmov variation20127.4%59.0%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation41635.8%64.3%
C93Ruy Lopez, closed, Smyslov defence27533.1%58.4%
C94Ruy Lopez, closed, Breyer defence13943.2%52.5%
C95Ruy Lopez, closed, Breyer, 10.d42100.0%50.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation246630.8%56.2%
C95Ruy Lopez, closed, Breyer, Gligoric variation8520.0%64.1%
C95Ruy Lopez, closed, Breyer, Simagin variation8243.9%62.2%
C96Ruy Lopez, closed (10...c5)138530.0%59.9%
C96Ruy Lopez, closed (8...Na5)5825.9%54.3%
C96Ruy Lopez, closed, Borisenko defence8728.7%59.2%
C96Ruy Lopez, closed, Keres (...Nd7) defence40537.5%60.5%
C96Ruy Lopez, closed, Rossolimo defence616.7%75.0%
C97Ruy Lopez, closed, Chigorin defence188023.3%60.2%
C98Ruy Lopez, closed, Chigorin, 12...Nc628630.4%62.8%
C98Ruy Lopez, closed, Chigorin, Rauzer attack1838.9%52.8%
C99Ruy Lopez, closed, Chigorin, 12...c5d4225434.7%58.8%
D00Blackmar gambit17433.9%45.1%
D00Blackmar-Diemer gambit6322.2%58.7%
D00Blackmar-Diemer, Euwe defence2317.4%47.8%
D00Blackmar-Diemer, Lemberg counter-gambit250.0%75.0%
D00Levitsky attack (Queen's bishop attack)407227.5%50.0%
D00Queen's pawn game477636.1%50.4%
D00Queen's pawn, Anti-Veresov2334.8%60.9%
D00Queen's pawn, Chigorin variation240525.4%52.0%
D00Queen's pawn, Mason variation377529.8%52.0%
D00Queen's pawn, Mason variation, Steinitz counter-gambit122232.1%49.3%
D00Queen's pawn, stonewall attack18231.3%47.5%
D01Richter-Veresov attack234328.0%47.0%
D01Richter-Veresov attack, Richter variation9033.3%44.4%
D01Richter-Veresov attack, Veresov variation8525.9%52.9%
D02Queen's bishop game560631.4%51.8%
D02Queen's pawn game2052230.5%53.3%
D02Queen's pawn game, Chigorin variation244527.9%55.1%
D02Queen's pawn game, Krause variation119633.8%51.5%
D03Torre attack (Tartakower variation)161327.8%50.1%
D04Queen's pawn game451034.6%52.4%
D05Colle system133434.2%51.6%
D05Queen's pawn game369632.5%53.0%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation125134.1%55.0%
D05Queen's pawn game, Zukertort variation11136.9%52.7%
D06QGD, Grau (Sahovic) defence341025.0%56.8%
D06QGD, Marshall defence49830.7%58.9%
D06QGD, symmetrical (Austrian) defence24231.4%57.0%
D06Queen's Gambit2119.0%57.1%
D07QGD, Chigorin defence384227.8%57.2%
D07QGD, Chigorin defence, Janowski variation117124.8%60.2%
D08QGD, Albin counter-gambit42331.0%51.4%
D08QGD, Albin counter-gambit, Alapin variation5038.0%53.0%
D08QGD, Albin counter-gambit, Balogh variation520.0%30.0%
D08QGD, Albin counter-gambit, Janowski variation40.0%100.0%
D08QGD, Albin counter-gambit, Krenosz variation250.0%75.0%
D08QGD, Albin counter-gambit, Lasker trap10.0%0.0%
D09QGD, Albin counter-gambit, 5.g316533.3%57.3%
D10QGD Slav defence729431.8%54.3%
D10QGD Slav defence, Alekhine variation78920.9%56.1%
D10QGD Slav defence, exchange variation557935.5%53.2%
D10QGD Slav, Winawer counter-gambit40431.7%54.5%
D11QGD Slav, 3.Nf3848231.4%54.8%
D11QGD Slav, 4.e3868530.7%56.0%
D11QGD Slav, Breyer variation35930.1%55.2%
D12QGD Slav, 4.e3 Bf51337730.4%54.8%
D12QGD Slav, Amsterdam variation7636.8%48.7%
D12QGD Slav, Landau variation1100.0%50.0%
D12QGD Slav, exchange variation54727.6%52.4%
D13QGD Slav, exchange variation161333.7%53.4%
D14QGD Slav, exchange variation, 6.Bf4 Bf5107032.3%51.1%
D14QGD Slav, exchange, Trifunovic variation32444.8%51.1%
D15QGD Slav accepted54627.7%51.2%
D15QGD Slav, 4.Nc3534530.3%53.7%
D15QGD Slav, 5.e3 (Alekhine variation)53024.7%48.8%
D15QGD Slav, Schlechter variation44030.2%57.4%
D15QGD Slav, Slav gambit68125.8%50.4%
D15QGD Slav, Suechting variation11322.1%53.5%
D15QGD Slav, Tolush-Geller gambit43724.7%45.3%
D16QGD Slav accepted, Alapin variation39923.8%70.1%
D16QGD Slav, Smyslov variation18822.9%59.8%
D16QGD Slav, Soultanbeieff variation32739.1%58.1%
D16QGD Slav, Steiner variation59024.7%59.5%
D17QGD Slav, Carlsbad variation88130.4%54.8%
D17QGD Slav, Czech defence97435.7%53.8%
D17QGD Slav, Krause attack97428.5%57.7%
D17QGD Slav, Wiesbaden variation82829.1%59.7%
D18QGD Slav, Dutch variation127535.9%57.4%
D18QGD Slav, Dutch, Lasker variation3925.6%66.7%
D19QGD Slav, Dutch variation324430.2%56.2%
D19QGD Slav, Dutch variation, main line69737.2%53.4%
D20QGA, 3.e4518029.1%56.1%
D20QGA, Linares variation7727.3%55.2%
D20QGA, Schwartz defence2100.0%50.0%
D20Queen's gambit accepted270930.3%55.2%
D21QGA, 3.Nf3187326.1%55.0%
D21QGA, Alekhine defense, Borisenko-Furman variation6331.7%39.7%
D21QGA, Ericson variation3441.2%52.9%
D22QGA, Alekhine defence75629.8%57.5%
D22QGA, Alekhine defence, Alatortsev variation1145.5%68.2%
D22QGA, Haberditz variation53332.3%58.2%
D23QGA, Mannheim variation95533.2%54.6%
D23Queen's gambit accepted22931.9%49.6%
D24QGA, 4.Nc337431.3%53.9%
D24QGA, Bogolyubov variation49519.0%46.1%
D25QGA, 4.e365530.5%57.7%
D25QGA, Flohr variation17926.8%64.2%
D25QGA, Janowsky-Larsen variation107527.8%56.9%
D25QGA, Smyslov variation21232.1%57.5%
D26QGA, 4...e6103733.9%53.0%
D26QGA, classical variation151134.3%54.1%
D26QGA, classical variation, 6.O-O54435.5%57.8%
D26QGA, classical, Furman variation560.0%50.0%
D26QGA, classical, Steinitz variation21246.7%60.1%
D27QGA, classical, 6...a6720138.7%54.3%
D27QGA, classical, Geller variation8833.0%42.6%
D27QGA, classical, Rubinstein variation552836.2%55.7%
D28QGA, classical, 7...b535336.3%54.7%
D28QGA, classical, 7.Qe223237.1%54.3%
D29QGA, classical, 8...Bb781032.0%47.7%
D29QGA, classical, Smyslov variation9929.3%54.0%
D30QGD437233.9%53.0%
D30QGD Slav183835.9%54.7%
D30QGD Slav, Semmering variation49637.5%53.8%
D30QGD, Capablanca variation7022.9%48.6%
D30QGD, Capablanca-Duras variation87228.8%52.1%
D30QGD, Hastings variation80735.8%50.2%
D30QGD, Spielmann variation633.3%83.3%
D30QGD, Stonewall variation333.3%83.3%
D30QGD, Vienna variation197937.8%55.5%
D30Queen's gambit declined934732.4%53.8%
D31QGD, 3.Nc3158728.6%54.0%
D31QGD, Alapin variation5016.0%42.0%
D31QGD, Charousek (Petrosian) variation397828.9%53.7%
D31QGD, Janowski variation32638.0%56.7%
D31QGD, semi-Slav157131.1%53.3%
D31QGD, semi-Slav, Abrahams variation182629.1%47.7%
D31QGD, semi-Slav, Junge variation4827.1%63.5%
D31QGD, semi-Slav, Koomen variation1060.0%50.0%
D31QGD, semi-Slav, Marshall gambit484529.1%55.6%
D31QGD, semi-Slav, Noteboom variation96728.7%52.4%
D32QGD, Tarrasch defence55032.5%54.1%
D32QGD, Tarrasch defence, 4.cd ed5930.5%47.5%
D32QGD, Tarrasch defence, Marshall gambit2733.3%53.7%
D32QGD, Tarrasch defence, Tarrasch gambit728.6%42.9%
D32QGD, Tarrasch, von Hennig-Schara gambit10729.9%56.1%
D33QGD, Tarrasch, Folkestone (Swedish) variation7837.2%55.8%
D33QGD, Tarrasch, Prague variation16135.4%57.5%
D33QGD, Tarrasch, Schlechter-Rubinstein system2020.0%55.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%75.0%
D33QGD, Tarrasch, Wagner variation3125.8%64.5%
D34QGD, Tarrasch, Bogolyubov variation1136.4%36.4%
D34QGD, Tarrasch, Prague variation, 7...Be789336.5%57.0%
D34QGD, Tarrasch, Prague variation, 9.Bg5269036.9%55.6%
D34QGD, Tarrasch, Prague variation, Normal position197237.3%57.5%
D34QGD, Tarrasch, Reti variation7439.2%56.1%
D34QGD, Tarrasch, Stoltz variation333.3%83.3%
D35QGD, 3...Nf623232.3%43.3%
D35QGD, Harrwitz attack17337.0%52.0%
D35QGD, exchange variation41932.7%55.3%
D35QGD, exchange, Saemisch variation33128.7%53.0%
D35QGD, exchange, chameleon variation1827.8%63.9%
D35QGD, exchange, positional line367630.2%53.7%
D35QGD, exchange, positional line, 5...c6243429.9%55.3%
D36QGD, exchange, positional line, 6.Qc259434.2%52.3%
D37QGD, 4.Nf3783733.3%53.4%
D37QGD, classical variation (5.Bf4)1072634.3%53.9%
D38QGD, Ragozin variation1135733.3%54.3%
D39QGD, Ragozin, Vienna variation178636.8%50.5%
D40QGD, Semi-Tarrasch defence106434.3%51.2%
D40QGD, Semi-Tarrasch defence, Pillsbury variation8852.3%50.0%
D40QGD, Semi-Tarrasch, symmetrical variation10733.6%47.7%
D41QGD, Semi-Tarrasch with e337236.8%55.0%
D41QGD, Semi-Tarrasch, 5.cd128639.0%57.0%
D41QGD, Semi-Tarrasch, Kmoch variation5657.1%60.7%
D41QGD, Semi-Tarrasch, San Sebastian variation8124.7%69.1%
D42QGD, Semi-Tarrasch, 7.Bd387936.3%57.5%
D43QGD semi-Slav3141931.1%54.2%
D43QGD semi-Slav, Hastings variation825.0%25.0%
D44QGD semi-Slav, 5.Bg5 dc61832.5%48.3%
D44QGD semi-Slav, Botvinnik system (anti-Meran)45125.5%49.1%
D44QGD semi-Slav, Ekstrom variation5521.8%40.0%
D44QGD semi-Slav, anti-Meran gambit256327.7%59.5%
D44QGD semi-Slav, anti-Meran, Alatortsev system5111.8%60.8%
D44QGD semi-Slav, anti-Meran, Lilienthal variation52523.8%58.8%
D44QGD semi-Slav, anti-Meran, Szabo variation24521.2%39.2%
D45QGD semi-Slav, 5...Nd7171629.7%51.8%
D45QGD semi-Slav, 5.e3170829.5%56.5%
D45QGD semi-Slav, Rubinstein (anti-Meran) system3135.5%59.7%
D45QGD semi-Slav, Stoltz variation5148432.7%52.8%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)533134.9%54.4%
D45QGD semi-Slav, stonewall defence3119.4%61.3%
D46QGD semi-Slav, 6.Bd312727.6%54.7%
D46QGD semi-Slav, Bogolyubov variation48230.9%57.2%
D46QGD semi-Slav, Chigorin defence95333.6%54.0%
D46QGD semi-Slav, Romih variation25327.3%65.0%
D47QGD semi-Slav, 7.Bc493227.4%58.1%
D47QGD semi-Slav, Meran variation359232.7%52.9%
D47QGD semi-Slav, Meran, Wade variation2628431.2%52.9%
D47QGD semi-Slav, neo-Meran (Lundin variation)80231.8%56.4%
D48QGD semi-Slav, Meran46823.9%47.6%
D48QGD semi-Slav, Meran, 8...a6956734.0%49.2%
D48QGD semi-Slav, Meran, Pirc variation7237.5%57.6%
D48QGD semi-Slav, Meran, Reynolds' variation202033.6%57.0%
D48QGD semi-Slav, Meran, old main line25537.3%54.3%
D49QGD semi-Slav, Meran, Blumenfeld variation89234.6%53.2%
D49QGD semi-Slav, Meran, Rabinovich variation12040.8%60.4%
D49QGD semi-Slav, Meran, Rellstab attack4136.6%50.0%
D49QGD semi-Slav, Meran, Sozin variation45840.0%49.7%
D49QGD semi-Slav, Meran, Stahlberg variation10235.3%52.0%
D50QGD, 4.Bg547032.1%56.5%
D50QGD, Been-Koomen variation2425.0%45.8%
D50QGD, Canal (Venice) variation520.0%50.0%
D50QGD, Semi-Tarrasch4645.7%59.8%
D50QGD, Semi-Tarrasch, Krause variation666.7%33.3%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation3026.7%36.7%
D51QGD5217.3%62.5%
D51QGD, 4.Bg5 Nbd714130.5%55.7%
D51QGD, 5...c610631.1%58.0%
D51QGD, Alekhine variation1421.4%53.6%
D51QGD, Capablanca anti-Cambridge Springs variation2025.0%57.5%
D51QGD, Manhattan variation2828.6%60.7%
D51QGD, Rochlin variation10.0%0.0%
D52QGD68435.8%56.9%
D52QGD, Cambridge Springs defence12645.2%49.6%
D52QGD, Cambridge Springs defence, 7.cd78435.1%59.0%
D52QGD, Cambridge Springs defence, Argentine variation3522.9%48.6%
D52QGD, Cambridge Springs defence, Bogoljubow variation77630.7%54.9%
D52QGD, Cambridge Springs defence, Capablanca variation5541.8%50.0%
D52QGD, Cambridge Springs defence, Rubinstein variation23231.5%55.8%
D52QGD, Cambridge Springs defence, Yugoslav variation194829.0%58.8%
D53QGD, 4.Bg5 Be7122734.6%54.9%
D53QGD, 4.Bg5 Be7, 5.e3 O-O5442.6%54.6%
D53QGD, Lasker variation1513.3%66.7%
D54QGD, Anti-neo-orthodox variation11222.3%53.1%
D55QGD, 6.Nf341433.1%57.6%
D55QGD, Neo-orthodox variation3450.0%60.3%
D55QGD, Neo-orthodox variation, 7.Bh464435.2%54.1%
D55QGD, Neo-orthodox variation, 7.Bxf635937.9%51.8%
D55QGD, Petrosian variation51241.4%52.7%
D55QGD, Pillsbury attack30.0%33.3%
D56QGD, Lasker defence65831.3%52.4%
D56QGD, Lasker defence, Teichmann variation16335.0%59.8%
D57QGD, Lasker defence, Bernstein variation3135.5%50.0%
D57QGD, Lasker defence, main line8535.3%60.0%
D58QGD, Tartakower (Makagonov-Bondarevsky) system1543534.0%52.8%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd576442.4%51.6%
D59QGD, Tartakower variation28650.3%42.7%
D60QGD, Orthodox defence40731.2%57.6%
D60QGD, Orthodox defence, Botvinnik variation25436.6%52.6%
D60QGD, Orthodox defence, Rauzer variation2927.6%58.6%
D61QGD, Orthodox defence, Rubinstein variation57130.8%53.9%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)28942.2%50.2%
D63QGD, Orthodox defence13525.9%57.4%
D63QGD, Orthodox defence, 7.Rc136734.6%54.4%
D63QGD, Orthodox defence, Capablanca variation60.0%66.7%
D63QGD, Orthodox defence, Pillsbury attack2744.4%40.7%
D63QGD, Orthodox defence, Swiss (Henneberger) variation22228.8%50.9%
D63QGD, Orthodox defence, Swiss, Karlsbad variation31928.5%52.5%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)22441.5%56.9%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation11038.2%49.1%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation3135.5%40.3%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation3737.8%56.8%
D65QGD, Orthodox defence, Rubinstein attack, main line2433.3%41.7%
D66QGD, Orthodox defence, Bd3 line44431.8%56.2%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation3727.0%64.9%
D67QGD, Orthodox defence, Bd3 line11442.1%50.0%
D67QGD, Orthodox defence, Bd3 line, 11.O-O25130.3%60.2%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation12947.3%61.6%
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 variation16436.6%55.5%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)862.5%68.8%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)11438.6%58.8%
D69QGD, Orthodox defence, classical, 13.de5560.0%48.2%
D70Neo-Gruenfeld (Kemeri) defence34340.8%55.4%
D70Neo-Gruenfeld defence113921.7%49.6%
D71Neo-Gruenfeld, 5.cd31038.4%57.9%
D72Neo-Gruenfeld, 5.cd, main line54329.1%54.5%
D73Neo-Gruenfeld, 5.Nf3138040.2%53.2%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O97734.8%59.7%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc380243.9%54.5%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc5540.0%60.0%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6251537.9%56.3%
D77Neo-Gruenfeld, 6.O-O328336.5%54.8%
D78Neo-Gruenfeld, 6.O-O c6347935.6%53.7%
D79Neo-Gruenfeld, 6.O-O, main line173341.4%53.1%
D80Gruenfeld defence111139.0%53.3%
D80Gruenfeld, Stockholm variation81333.9%50.7%
D81Gruenfeld, Russian variation52834.1%55.5%
D82Gruenfeld, 4.Bf474332.3%52.2%
D83Gruenfeld, Gruenfeld gambit8830.7%50.6%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation2857.1%50.0%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation13346.6%56.4%
D84Gruenfeld, Gruenfeld gambit accepted9727.8%65.5%
D85Gruenfeld, exchange variation373136.4%53.2%
D85Gruenfeld, modern exchange variation982737.2%53.7%
D86Gruenfeld, exchange, Larsen variation2330.4%63.0%
D86Gruenfeld, exchange, Simagin's improved variation17031.8%55.3%
D86Gruenfeld, exchange, Simagin's lesser variation7234.7%63.2%
D86Gruenfeld, exchange, classical variation185934.4%54.9%
D87Gruenfeld, exchange, Seville variation26838.1%64.6%
D87Gruenfeld, exchange, Spassky variation108436.2%57.9%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd43140.6%53.2%
D89Gruenfeld, Spassky variation, main line, 13.Bd314034.3%55.0%
D89Gruenfeld, exchange, Sokolsky variation7032.9%37.9%
D90Gruenfeld, Flohr variation39636.4%48.7%
D90Gruenfeld, Schlechter variation10240.2%64.2%
D90Gruenfeld, Three knights variation83435.5%54.0%
D91Gruenfeld, 5.Bg5226632.0%49.8%
D92Gruenfeld, 5.Bf4141935.2%55.2%
D93Gruenfeld with Bf4 e3109336.9%53.3%
D94Gruenfeld with e3 Bd33138.7%58.1%
D94Gruenfeld, 5.e379635.3%57.7%
D94Gruenfeld, Flohr defence7129.6%54.2%
D94Gruenfeld, Makogonov variation25832.2%49.8%
D94Gruenfeld, Opovcensky variation22338.1%49.6%
D94Gruenfeld, Smyslov defence35237.2%52.1%
D95Gruenfeld with e3 & Qb37737.7%48.7%
D95Gruenfeld, Botvinnik variation12632.5%44.8%
D96Gruenfeld, Russian variation56430.9%53.4%
D97Gruenfeld, Russian variation with e47631.6%51.3%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation506733.1%51.4%
D97Gruenfeld, Russian, Byrne (Simagin) variation36526.6%50.0%
D97Gruenfeld, Russian, Levenfish variation2119.0%57.1%
D97Gruenfeld, Russian, Prins variation148334.3%55.2%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation36129.6%60.5%
D98Gruenfeld, Russian, Keres variation1323.1%73.1%
D98Gruenfeld, Russian, Smyslov variation65029.5%54.6%
D99Gruenfeld defence, Smyslov, Yugoslav variation5149.0%59.8%
D99Gruenfeld defence, Smyslov, main line40731.0%61.9%
E00Catalan opening870232.4%54.1%
E00Neo-Indian (Seirawan) attack70225.6%49.0%
E00Queen's pawn game173229.6%54.7%
E01Catalan, closed78534.8%53.3%
E02Catalan, open, 5.Qa413438.1%57.8%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc44944.9%55.1%
E03Catalan, open, Alekhine variation175.9%44.1%
E04Catalan, open, 5.Nf31580234.1%53.9%
E05Catalan, open, classical line59831.1%55.7%
E06Catalan, closed, 5.Nf31068438.0%54.4%
E07Catalan, closed, 6...Nbd720829.3%51.7%
E07Catalan, closed, Botvinnik variation18529.2%59.5%
E08Catalan, closed, 7.Qc226231.3%54.2%
E08Catalan, closed, Qc2 & b353829.0%53.7%
E08Catalan, closed, Spassky gambit3020.0%63.3%
E08Catalan, closed, Zagoryansky variation450.0%75.0%
E09Catalan, closed, Sokolsky variation540.0%60.0%
E09Catalan, closed, main line96731.4%57.5%
E10Blumenfeld counter-gambit15530.3%55.2%
E10Blumenfeld counter-gambit accepted21224.1%54.0%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation44827.2%56.7%
E10Blumenfeld counter-gambit, Spielmann variation15617.9%56.4%
E10Doery defence15026.0%47.0%
E10Dzindzikhashvili defence28728.6%57.5%
E10Queen's pawn game1013733.5%54.5%
E11Bogo-Indian defence434033.6%55.2%
E11Bogo-Indian defence, Gruenfeld variation452132.5%55.6%
E11Bogo-Indian defence, Monticelli trap3125.8%58.1%
E11Bogo-Indian defence, Nimzovich variation347330.9%56.9%
E12Queen's Indian defence63729.4%50.8%
E12Queen's Indian, 4.Nc3789729.2%52.6%
E12Queen's Indian, 4.Nc3, Botvinnik variation11629.3%50.0%
E12Queen's Indian, Miles variation173131.6%53.4%
E12Queen's Indian, Petrosian system1296932.6%53.5%
E13Queen's Indian, 4.Nc3, main line38325.3%55.5%
E14Queen's Indian, 4.e3343531.1%52.3%
E14Queen's Indian, Averbakh variation1533.3%36.7%
E15Queen's Indian, 4.g3233440.9%54.9%
E15Queen's Indian, 4.g3 Bb739630.3%56.1%
E15Queen's Indian, Buerger variation7723.4%51.9%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)3920130.9%55.1%
E15Queen's Indian, Rubinstein variation17323.1%53.8%
E16Queen's Indian, Capablanca variation57738.3%57.6%
E16Queen's Indian, Riumin variation50635.4%55.6%
E16Queen's Indian, Yates variation111031.8%59.5%
E17Queen's Indian, 5.Bg2 Be711532.2%51.7%
E17Queen's Indian, Euwe variation11435.1%58.8%
E17Queen's Indian, Opovcensky variation173429.1%58.7%
E17Queen's Indian, anti-Queen's Indian system35735.9%56.0%
E17Queen's Indian, old main line, 6.O-O140834.2%56.5%
E18Queen's Indian, old main line, 7.Nc3368334.0%56.5%
E19Queen's Indian, old main line, 9.Qxc3190633.2%55.5%
E20Nimzo-Indian defence34729.7%48.0%
E20Nimzo-Indian, Kmoch variation176926.5%53.0%
E20Nimzo-Indian, Mikenas attack2123.8%31.0%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system104429.3%49.7%
E21Nimzo-Indian, three knights variation504930.2%52.1%
E21Nimzo-Indian, three knights, Euwe variation1553.3%53.3%
E21Nimzo-Indian, three knights, Korchnoi variation4434.1%60.2%
E22Nimzo-Indian, Spielmann variation25731.9%52.9%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc64325.6%45.3%
E23Nimzo-Indian, Spielmann, Karlsbad variation1827.8%36.1%
E23Nimzo-Indian, Spielmann, San Remo variation650.0%58.3%
E24Nimzo-Indian, Saemisch variation25733.1%49.6%
E24Nimzo-Indian, Saemisch, Botvinnik variation4630.4%43.5%
E25Nimzo-Indian, Saemisch variation14835.8%51.0%
E25Nimzo-Indian, Saemisch, Keres variation54530.5%52.5%
E25Nimzo-Indian, Saemisch, Romanovsky variation28337.1%49.6%
E26Nimzo-Indian, Saemisch variation16526.7%49.1%
E26Nimzo-Indian, Saemisch, O'Kelly variation4526.7%40.0%
E27Nimzo-Indian, Saemisch variation6729.9%49.3%
E28Nimzo-Indian, Saemisch variation12532.0%52.8%
E29Nimzo-Indian, Saemisch, Capablanca variation13139.7%51.1%
E29Nimzo-Indian, Saemisch, main line14031.4%58.6%
E30Nimzo-Indian, Leningrad variation68632.4%49.9%
E30Nimzo-Indian, Leningrad, ...b5 gambit4045.0%42.5%
E31Nimzo-Indian, Leningrad, main line22322.0%46.0%
E32Nimzo-Indian, classical variation1014533.0%52.6%
E32Nimzo-Indian, classical, Adorjan gambit34228.7%55.6%
E33Nimzo-Indian, classical, 4...Nc623325.8%58.4%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation94226.1%53.8%
E34Nimzo-Indian, classical, Noa variation117636.9%51.6%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed111634.7%49.9%
E36Nimzo-Indian, classical, Botvinnik variation2339.1%54.3%
E36Nimzo-Indian, classical, Noa variation, 5.a378635.1%55.3%
E36Nimzo-Indian, classical, Noa variation, main line137.7%26.9%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc217131.0%61.1%
E37Nimzo-Indian, classical, San Remo variation1241.7%54.2%
E38Nimzo-Indian, classical, 4...c5103532.3%55.6%
E39Nimzo-Indian, classical, Pirc variation151833.0%56.0%
E40Nimzo-Indian, 4.e334829.6%53.3%
E40Nimzo-Indian, 4.e3, Taimanov variation16230.9%53.7%
E41Nimzo-Indian, 4.e3 c599634.1%50.8%
E41Nimzo-Indian, e3, Huebner variation115924.7%50.3%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)223632.5%55.1%
E43Nimzo-Indian, Fischer variation69530.5%53.7%
E44Nimzo-Indian, Fischer variation, 5.Ne2107426.1%56.1%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation82331.2%54.9%
E46Nimzo-Indian, 4.e3 O-O22534.2%52.2%
E46Nimzo-Indian, Reshevsky variation163928.6%52.6%
E46Nimzo-Indian, Simagin variation12029.2%47.9%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd399537.0%55.8%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d576132.2%52.8%
E49Nimzo-Indian, 4.e3, Botvinnik system46730.0%48.4%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d526836.6%58.6%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d541435.7%50.7%
E51Nimzo-Indian, 4.e3, Ragozin variation5947.5%55.9%
E52Nimzo-Indian, 4.e3, main line with ...b6138035.1%52.7%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd713939.6%54.3%
E53Nimzo-Indian, 4.e3, Keres variation16538.8%49.7%
E53Nimzo-Indian, 4.e3, main line with ...c5240838.0%52.9%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc312937.6%54.1%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation7035.7%57.9%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation320135.3%53.4%
E56Nimzo-Indian, 4.e3, main line with 7...Nc6167231.9%54.9%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd3630.6%68.1%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3347630.1%49.4%
E59Nimzo-Indian, 4.e3, main line228430.9%53.7%
E60King's Indian defence270524.8%53.8%
E60King's Indian, 3.Nf3612031.0%55.3%
E60King's Indian, 3.g3336833.5%55.2%
E60King's Indian, 3.g3, counterthrust variation2030.0%50.0%
E60King's Indian, Anti-Gruenfeld22727.8%51.8%
E60King's Indian, Danube gambit2931.0%53.4%
E60Queen's pawn, Mengarini attack14824.3%50.0%
E61King's Indian defence, 3.Nc3190030.1%54.2%
E61King's Indian, Smyslov system17327.2%48.8%
E62King's Indian, fianchetto variation18429.9%53.0%
E62King's Indian, fianchetto with ...Nc636526.3%57.0%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation118729.7%58.9%
E62King's Indian, fianchetto, Larsen system37330.0%52.8%
E62King's Indian, fianchetto, Simagin variation18527.6%66.8%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation55529.7%58.3%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation51924.5%58.3%
E63King's Indian, fianchetto, Panno variation337028.5%57.1%
E64King's Indian, fianchetto, Yugoslav system22625.7%56.2%
E65King's Indian, fianchetto, Yugoslav, 7.O-O28330.0%58.8%
E66King's Indian, fianchetto, Yugoslav Panno60229.1%56.7%
E67King's Indian, fianchetto with ...Nd723729.1%62.2%
E67King's Indian, fianchetto, classical variation110532.6%55.7%
E68King's Indian, fianchetto, classical variation, 8.e4258830.6%58.7%
E69King's Indian, fianchetto, classical main line127830.6%60.1%
E70King's Indian, 4.e4103825.2%55.0%
E70King's Indian, Kramer system29922.7%54.2%
E70King's Indian, accelerated Averbakh system16628.9%51.2%
E71King's Indian, Makagonov system (5.h3)123426.6%55.7%
E72King's Indian with e4 & g36929.0%53.6%
E72King's Indian, Pomar system1553.3%60.0%
E73King's Indian, 5.Be213520.0%50.0%
E73King's Indian, Averbakh system121128.7%53.2%
E73King's Indian, Semi-Averbakh system7726.0%45.5%
E74King's Indian, Averbakh, 6...c534925.5%62.6%
E75King's Indian, Averbakh, main line6331.7%49.2%
E76King's Indian, Four pawns attack44232.8%58.5%
E76King's Indian, Four pawns attack, dynamic line20032.0%51.0%
E77King's Indian, Four pawns attack26033.8%53.8%
E77King's Indian, Four pawns attack, 6.Be21233.3%58.3%
E77King's Indian, Four pawns attack, Florentine gambit4129.3%41.5%
E78King's Indian, Four pawns attack, with Be2 and Nf36339.7%48.4%
E79King's Indian, Four pawns attack, main line13044.6%57.7%
E80King's Indian, Saemisch variation79223.4%56.0%
E81King's Indian, Saemisch, 5...O-O283225.2%54.3%
E81King's Indian, Saemisch, Byrne variation9230.4%52.2%
E82King's Indian, Saemisch, double fianchetto variation16729.3%60.2%
E83King's Indian, Saemisch, 6...Nc615219.7%53.9%
E83King's Indian, Saemisch, Panno formation26525.3%52.3%
E83King's Indian, Saemisch, Ruban variation1020.0%50.0%
E84King's Indian, Saemisch, Panno main line97021.3%52.2%
E85King's Indian, Saemisch, orthodox variation8727.6%55.2%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c696426.8%55.1%
E87King's Indian, Saemisch, orthodox, 7.d561820.4%61.8%
E87King's Indian, Saemisch, orthodox, Bronstein variation1127.3%59.1%
E88King's Indian, Saemisch, orthodox, 7.d5 c655730.9%55.7%
E89King's Indian, Saemisch, orthodox main line12025.0%63.3%
E90King's Indian, 5.Nf3137623.3%54.7%
E90King's Indian, Larsen variation14127.0%55.3%
E90King's Indian, Zinnowitz variation11828.8%53.4%
E91King's Indian, 6.Be2105125.2%59.6%
E91King's Indian, Kazakh variation70729.6%57.5%
E92King's Indian, Andersson variation51139.7%53.5%
E92King's Indian, Gligoric-Taimanov system330325.6%58.2%
E92King's Indian, Petrosian system21520.0%56.5%
E92King's Indian, Petrosian system, Stein variation127527.7%53.2%
E92King's Indian, classical variation2326.1%47.8%
E93King's Indian, Petrosian system, Keres variation2828.6%50.0%
E93King's Indian, Petrosian system, main line24224.0%55.4%
E94King's Indian, orthodox variation199231.6%57.1%
E94King's Indian, orthodox, 7...Nbd7270027.1%57.0%
E94King's Indian, orthodox, Donner variation25328.1%55.1%
E95King's Indian, orthodox, 7...Nbd7, 8.Re1100926.7%56.0%
E96King's Indian, orthodox, 7...Nbd7, main line22732.6%59.0%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)934925.6%55.4%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack341029.3%57.8%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1381721.9%58.8%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack15425.3%57.5%
E99King's Indian, orthodox, Aronin-Taimanov, main line13523.0%53.7%

Created in 2005-2013 by CCRL team
Last games added on October 17, 2020