CCRL 40/40
Downloads and Statistics
May 27, 2017
Testing summary:
Total: 715'938 games
played by 1'882 programs
98447 CPU days (X2 4600+)

White wins: 246'582 (34.4%)
Black wins: 183'348 (25.6%)
Draws: 286'008 (39.9%)
White score: 54.4%

Opening statistics

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

ECOOpeningNumber
of
games
DrawsWhite
score
Commented
PGN
A00Amar (Paris) opening1844.4%33.3%
A00Amar gambit10.0%0.0%
A00Amsterdam attack10.0%100.0%
A00Anderssen's opening35440.7%50.8%
A00Anti-Borg (Desprez) opening30.0%33.3%
A00Battambang opening1631.3%46.9%
A00Benko's opening509241.2%52.1%
A00Benko's opening, reversed Alekhine11342.5%48.7%
A00Clemenz (Mead's, Basman's or de Klerk's) opening2931.0%43.1%
A00Dunst (Sleipner, Heinrichsen) opening131535.6%49.4%
A00Durkin's attack650.0%41.7%
A00Global opening425.0%62.5%
A00Grob's attack18643.5%34.7%
A00Grob, Fritz gambit5143.1%27.5%
A00Grob, Romford counter-gambit425.0%62.5%
A00Grob, spike attack633.3%33.3%
A00Lasker simul special333.3%50.0%
A00Mieses opening11530.4%52.6%
A00Novosibirsk opening2133.3%50.0%
A00Polish (Sokolsky) opening146638.1%48.2%
A00Polish, Outflank variation10244.1%47.5%
A00Saragossa opening28028.9%49.1%
A00Van't Kruijs opening44339.7%51.5%
A00Ware (Meadow Hay) opening425.0%62.5%
A01Nimzovich-Larsen attack49737.2%51.8%
A01Nimzovich-Larsen attack, Dutch variation1330.8%46.2%
A01Nimzovich-Larsen attack, English variation14636.3%50.3%
A01Nimzovich-Larsen attack, Indian variation22730.8%49.3%
A01Nimzovich-Larsen attack, classical variation82536.4%50.4%
A01Nimzovich-Larsen attack, modern variation250840.0%50.4%
A01Nimzovich-Larsen attack, symmetrical variation51140.7%48.5%
A02Bird's opening263035.9%48.8%
A02Bird's opening, Swiss gambit250.0%75.0%
A02Bird, From gambit14834.5%50.3%
A02Bird, From gambit, Lasker variation2955.2%58.6%
A02Bird, From gambit, Lipke variation10.0%0.0%
A02Bird, Hobbs gambit560.0%70.0%
A03Bird's opening285836.1%47.7%
A03Bird's opening, Lasker variation8027.5%42.5%
A03Bird's opening, Williams gambit1735.3%70.6%
A03Mujannah opening450.0%25.0%
A04Reti opening662937.9%54.3%
A04Reti v Dutch84734.5%58.3%
A04Reti, Herrstroem gambit20.0%100.0%
A04Reti, Lisitsin gambit deferred1816.7%75.0%
A04Reti, Pirc-Lisitsin gambit11829.7%49.6%
A04Reti, Wade defence20.0%50.0%
A05Reti opening286236.7%53.3%
A05Reti, King's Indian attack106340.4%53.4%
A05Reti, King's Indian attack, Reti-Smyslov variation4740.4%56.4%
A05Reti, King's Indian attack, Spassky's variation25941.7%51.4%
A06Reti opening55437.4%53.3%
A06Reti, Nimzovich-Larsen attack249641.3%49.9%
A06Reti, old Indian attack8924.7%48.3%
A06Santasiere's folly9237.0%41.3%
A06Tennison (Lemberg, Zukertort) gambit1656.3%40.6%
A07Reti, King's Indian attack177542.7%53.1%
A07Reti, King's Indian attack (Barcza system)375741.0%54.0%
A07Reti, King's Indian attack (with ...c5)16141.6%50.0%
A07Reti, King's Indian attack, Keres variation60534.4%54.5%
A07Reti, King's Indian attack, Pachman system10338.8%53.4%
A07Reti, King's Indian attack, Yugoslav variation153439.6%52.7%
A08Reti, King's Indian attack49142.0%52.3%
A08Reti, King's Indian attack, French variation24637.4%48.0%
A09Reti accepted21740.6%51.6%
A09Reti accepted, Keres variation3831.6%68.4%
A09Reti opening46039.6%52.6%
A09Reti, advance variation62039.4%49.0%
A10English opening227437.6%54.7%
A10English, Adorjan defence29738.4%56.2%
A10English, Anglo-Dutch defense55932.0%53.8%
A10English, Jaenisch gambit20.0%100.0%
A11English, Caro-Kann defensive system109040.0%54.3%
A12English, Bled variation1643.8%59.4%
A12English, Capablanca's variation6235.5%46.8%
A12English, Caro-Kann defensive system14737.4%48.6%
A12English, Caro-Kann defensive system, Bogolyubov variation7647.4%52.6%
A12English, London defensive system11643.1%53.4%
A12English, New York (London) defensive system3250.0%43.8%
A12English, Torre defensive system3644.4%55.6%
A13English opening172836.7%51.4%
A13English opening, Agincourt variation110839.4%54.1%
A13English, Kurajica defence5731.6%57.9%
A13English, Neo-Catalan63640.3%53.0%
A13English, Neo-Catalan accepted99745.4%57.1%
A13English, Romanishin gambit24041.3%56.5%
A13English, Wimpey system10240.2%51.5%
A14English, Neo-Catalan declined72543.0%54.5%
A14English, Symmetrical, Keres defence49046.3%57.0%
A15English opening901642.5%53.5%
A15English, 1...Nf6 (Anglo-Indian defense)98039.2%55.4%
A16English opening118035.6%53.0%
A16English, Anglo-Gruenfeld defense20142.3%53.0%
A16English, Anglo-Gruenfeld defense, Korchnoi variation9036.7%58.3%
A16English, Anglo-Gruenfeld, Czech defense15433.8%63.6%
A16English, Anglo-Gruenfeld, Smyslov defense14632.9%55.5%
A17English opening20938.3%53.6%
A17English, Nimzo-English opening151839.5%53.7%
A17English, Queens Indian formation20036.5%59.8%
A17English, Queens Indian, Romanishin variation5226.9%59.6%
A18English, Mikenas-Carls variation8145.7%58.6%
A18English, Mikenas-Carls, Flohr variation26939.0%58.9%
A18English, Mikenas-Carls, Kevitz variation2025.0%47.5%
A19English, Mikenas-Carls, Sicilian variation30843.5%54.2%
A20English opening480238.0%54.4%
A20English, Nimzovich variation5633.9%56.3%
A20English, Nimzovich, Flohr variation13138.9%41.6%
A21English opening127033.3%54.4%
A21English, Keres variation1030.0%45.0%
A21English, Kramnik-Shirov counterattack159940.8%52.3%
A21English, Smyslov defence3630.6%59.7%
A21English, Troeger defence11629.3%53.4%
A22English opening66335.7%50.8%
A22English, Bellon gambit1136.4%63.6%
A22English, Bremen, Smyslov system135938.4%49.2%
A22English, Bremen, reverse dragon60540.3%50.2%
A22English, Carls' Bremen system32739.8%54.1%
A23English, Bremen system, Keres variation50840.6%48.6%
A24English, Bremen system with ...g614040.0%48.6%
A25English, Sicilian reversed65033.7%51.8%
A25English, closed system69834.8%53.9%
A25English, closed system (without ...d6)11628.4%55.6%
A25English, closed, 5.Rb138539.7%51.6%
A25English, closed, 5.Rb1 Taimanov variation20.0%50.0%
A25English, closed, Hort variation3435.3%52.9%
A25English, closed, Taimanov variation2010.0%65.0%
A26English, Botvinnik system27238.6%52.4%
A26English, closed system26837.7%51.7%
A27English, three knights system43434.6%53.2%
A28English, Bradley Beach variation5020.0%38.0%
A28English, Nenarokov variation12240.2%52.0%
A28English, four knights system33243.7%51.1%
A28English, four knights, 4.e389136.4%52.0%
A28English, four knights, Capablanca variation35936.8%55.7%
A28English, four knights, Marini variation69938.5%50.9%
A28English, four knights, Nimzovich variation43235.0%53.8%
A28English, four knights, Romanishin variation40650.5%53.1%
A28English, four knights, Stean variation8342.2%59.6%
A29English, four knights, kingside fianchetto563840.8%51.9%
A30English, symmetrical variation269039.7%54.5%
A30English, symmetrical, hedgehog system245046.5%55.7%
A30English, symmetrical, hedgehog, flexible formation17242.4%54.9%
A31English, symmetrical, Benoni formation79340.4%56.1%
A32English, symmetrical variation30541.0%58.5%
A33English, symmetrical variation131147.7%54.8%
A33English, symmetrical, Geller variation55037.6%53.9%
A34English, symmetrical variation83338.4%53.8%
A34English, symmetrical, Rubinstein system33539.1%52.1%
A34English, symmetrical, three knights system101041.5%55.3%
A35English, symmetrical variation19233.3%52.6%
A35English, symmetrical, four knights system181742.8%53.6%
A36English, symmetrical variation10636.8%56.1%
A36English, symmetrical, Botvinnik system14732.7%51.7%
A36English, symmetrical, Botvinnik system reversed5534.5%59.1%
A36English, ultra-symmetrical variation109838.0%53.3%
A37English, symmetrical variation84540.6%50.0%
A37English, symmetrical, Botvinnik system reversed62337.6%50.6%
A38English, symmetrical variation48945.2%55.3%
A38English, symmetrical, main line with b31100.0%50.0%
A38English, symmetrical, main line with d311650.0%52.6%
A39English, symmetrical, main line with d440241.3%57.5%
A40Beefeater defence2920.7%69.0%
A40Modern defence75337.5%58.3%
A40Polish defence4843.8%51.0%
A40Queen's pawn188937.1%55.1%
A40Queen's pawn, Charlick (Englund) gambit2045.0%62.5%
A40Queen's pawn, English defence14741.5%63.6%
A40Queen's pawn, Franco-Indian (Keres) defence76037.8%54.8%
A40Queen's pawn, Keres defence136343.2%57.0%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence14731.3%59.9%
A41Modern defence5831.0%55.2%
A41Old Indian defence58730.0%54.9%
A41Old Indian, Tartakower (Wade) variation75834.3%61.2%
A41Queen's Pawn173435.5%54.2%
A41Robatsch defence, Rossolimo variation10335.9%50.0%
A42Modern defence, Averbakh system32831.7%58.8%
A42Modern defence, Averbakh system, Kotov variation10123.8%64.4%
A42Modern defence, Averbakh system, Randspringer variation90.0%77.8%
A42Pterodactyl defence31837.1%64.2%
A43Hawk (Habichd) defence366.7%33.3%
A43Old Benoni defence119235.0%59.5%
A43Old Benoni, Franco-Benoni defence6532.3%60.8%
A43Old Benoni, Mujannah formation3138.7%67.7%
A43Old Benoni, Schmid's system2317.4%56.5%
A44Old Benoni defence1643.8%65.6%
A44Semi-Benoni (`blockade variation')8230.5%61.6%
A45Blackmar-Diemer gambit15328.8%47.7%
A45Canard opening1136.4%27.3%
A45Paleface attack3234.4%45.3%
A45Queen's pawn game170238.5%54.1%
A45Queen's pawn, Bronstein gambit1030.0%55.0%
A45Trompovsky attack (Ruth, Opovcensky opening)309735.3%52.1%
A46Queen's pawn game245640.0%54.9%
A46Queen's pawn, Torre attack110436.8%51.5%
A46Queen's pawn, Torre attack, Wagner gambit333.3%83.3%
A46Queen's pawn, Yusupov-Rubinstein system65640.7%52.1%
A47Queen's Indian defence42838.8%52.1%
A47Queen's Indian, Marienbad system6735.8%53.7%
A47Queen's Indian, Marienbad system, Berg variation1250.0%58.3%
A48King's Indian, East Indian defence72238.9%51.0%
A48King's Indian, London system89939.5%53.2%
A48King's Indian, Torre attack136239.4%49.4%
A49King's Indian, fianchetto without c491940.4%56.3%
A50Kevitz-Trajkovich defence28138.8%57.1%
A50Queen's Indian accelerated12543.2%59.2%
A50Queen's pawn game47937.4%55.2%
A51Budapest defence declined520.0%70.0%
A51Budapest, Fajarowicz variation3525.7%61.4%
A51Budapest, Fajarowicz, Steiner variation10.0%0.0%
A52Budapest defence1850.0%52.8%
A52Budapest, Adler variation14147.5%55.0%
A52Budapest, Alekhine variation1323.1%65.4%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
A52Budapest, Alekhine, Abonyi variation5425.9%61.1%
A52Budapest, Rubinstein variation33939.8%60.3%
A53Old Indian defence81839.7%55.7%
A53Old Indian, Janowski variation10431.7%58.2%
A54Old Indian, Dus-Khotimirsky variation728.6%42.9%
A54Old Indian, Ukrainian variation7651.3%55.9%
A54Old Indian, Ukrainian variation, 4.Nf317337.0%57.2%
A55Old Indian, main line38039.5%58.2%
A56Benoni defence54733.3%59.4%
A56Benoni defence, Hromodka system35424.0%65.4%
A56Czech Benoni defence26128.0%68.4%
A56Czech Benoni, King's Indian system3411.8%64.7%
A56Vulture defence1100.0%50.0%
A57Benko gambit55137.4%56.8%
A57Benko gambit half accepted69639.7%56.6%
A57Benko gambit, Zaitsev system6439.1%44.5%
A58Benko gambit accepted60132.9%58.7%
A58Benko gambit, Nd2 variation837.5%56.3%
A58Benko gambit, fianchetto variation13943.9%61.5%
A59Benko gambit3444.1%60.3%
A59Benko gambit, 7.e4633.3%50.0%
A59Benko gambit, Ne2 variation30.0%33.3%
A59Benko gambit, main line11540.9%66.5%
A60Benoni defence10325.2%64.1%
A61Benoni defence45631.4%62.8%
A61Benoni, Nimzovich (knight's tour) variation33528.1%59.1%
A61Benoni, Uhlmann variation19222.4%39.3%
A61Benoni, fianchetto variation1414.3%78.6%
A62Benoni, fianchetto variation63136.3%56.3%
A63Benoni, fianchetto, 9...Nbd76434.4%64.1%
A64Benoni, fianchetto, 11...Re810140.6%41.1%
A65Benoni, 6.e427525.5%55.3%
A66Benoni, Mikenas variation1723.5%47.1%
A66Benoni, pawn storm variation540.0%60.0%
A67Benoni, Taimanov variation18322.4%64.2%
A68Benoni, four pawns attack7034.3%55.7%
A69Benoni, four pawns attack, main line7238.9%44.4%
A70Benoni, classical with e4 and Nf350338.2%59.0%
A70Benoni, classical without 9.O-O425.0%37.5%
A71Benoni, classical, 8.Bg58123.5%54.9%
A72Benoni, classical without 9.O-O4641.3%62.0%
A73Benoni, classical, 9.O-O4623.9%57.6%
A74Benoni, classical, 9...a6, 10.a41942.1%73.7%
A75Benoni, classical with ...a6 and 10...Bg44124.4%70.7%
A76Benoni, classical, 9...Re88139.5%65.4%
A77Benoni, classical, 9...Re8, 10.Nd211526.1%67.8%
A78Benoni, classical with ...Re8 and ...Na63333.3%59.1%
A79Benoni, classical, 11.f35127.5%58.8%
A80Dutch160035.1%54.3%
A80Dutch, 2.Bg5 variation67632.2%53.8%
A80Dutch, Korchnoi attack837.5%43.8%
A80Dutch, Krejcik gambit26734.1%54.5%
A80Dutch, Manhattan (Alapin, Ulvestad) variation1741.2%61.8%
A81Dutch defence271438.6%56.9%
A81Dutch defence, Blackburne variation4528.9%52.2%
A81Dutch, Leningrad, Basman system450.0%75.0%
A81Dutch, Leningrad, Karlsbad variation475.0%62.5%
A82Dutch, Balogh defence633.3%83.3%
A82Dutch, Staunton gambit9535.8%33.7%
A82Dutch, Staunton gambit, Tartakower variation616.7%41.7%
A83Dutch, Staunton gambit, Alekhine variation250.0%25.0%
A83Dutch, Staunton gambit, Chigorin variation6933.3%52.9%
A83Dutch, Staunton gambit, Lasker variation1145.5%40.9%
A83Dutch, Staunton gambit, Nimzovich variation20.0%0.0%
A83Dutch, Staunton gambit, Staunton's line9935.4%51.0%
A84Dutch defence48639.3%55.7%
A84Dutch defence, Rubinstein variation23533.2%58.3%
A84Dutch, Staunton gambit deferred955.6%27.8%
A85Dutch with c4 & Nc355734.8%54.6%
A86Dutch with c4 & g36939.1%64.5%
A86Dutch, Hort-Antoshin system2100.0%50.0%
A86Dutch, Leningrad variation11436.8%55.3%
A87Dutch, Leningrad, main variation28640.2%54.4%
A88Dutch, Leningrad, main variation with c674738.2%57.1%
A89Dutch, Leningrad, main variation with Nc631536.5%63.7%
A90Dutch defence88339.0%60.9%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation15338.6%60.5%
A90Dutch-Indian, Alekhine variation3735.1%55.4%
A91Dutch defence7832.1%51.9%
A92Dutch defence3452.9%58.8%
A92Dutch defence, Alekhine variation3540.0%62.9%
A92Dutch, stonewall variation5648.2%58.0%
A92Dutch, stonewall with Nc31030.0%45.0%
A93Dutch, stonewall, Botwinnik variation6929.0%56.5%
A94Dutch, stonewall with Ba32958.6%60.3%
A95Dutch, stonewall with Nc320129.4%58.5%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
A96Dutch, classical variation16234.0%62.0%
A97Dutch, Ilyin-Genevsky variation1618.8%59.4%
A97Dutch, Ilyin-Genevsky, Winter variation5740.4%64.0%
A98Dutch, Ilyin-Genevsky variation with Qc22040.0%60.0%
A99Dutch, Ilyin-Genevsky variation with b37835.9%64.1%
B00Carr's defence450.0%50.0%
B00Corn stalk defence250.0%25.0%
B00KP, Colorado counter20.0%50.0%
B00KP, Nimzovich defence38732.6%61.5%
B00KP, Nimzovich defence, Bogolyubov variation8431.0%58.3%
B00King's pawn opening111137.2%57.1%
B00Lemming defence837.5%56.3%
B00Owen defence25932.8%61.6%
B00Reversed Grob (Borg/Basman defence/macho Grob)1631.3%84.4%
B00St. George (Baker) defence3638.9%58.3%
B01Scandinavian (centre counter) defence224741.9%57.1%
B01Scandinavian defence71640.5%57.3%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B01Scandinavian defence, Lasker variation11332.7%65.0%
B01Scandinavian gambit13341.4%52.3%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
B01Scandinavian, Icelandic gambit5248.1%54.8%
B01Scandinavian, Kiel variation728.6%85.7%
B01Scandinavian, Marshall variation50844.3%59.7%
B01Scandinavian, Mieses-Kotrvc gambit862.5%43.8%
B01Scandinavian, Pytel-Wade variation227544.6%57.9%
B01Scandinavian, Richter variation250.0%75.0%
B02Alekhine's defence48834.8%54.9%
B02Alekhine's defence, Brooklyn defence714.3%35.7%
B02Alekhine's defence, Kmoch variation714.3%21.4%
B02Alekhine's defence, Krejcik variation250.0%25.0%
B02Alekhine's defence, Maroczy variation8636.0%57.6%
B02Alekhine's defence, Saemisch attack23338.6%47.6%
B02Alekhine's defence, Scandinavian variation12935.7%55.8%
B02Alekhine's defence, Spielmann variation1435.7%46.4%
B02Alekhine's defence, Steiner variation944.4%55.6%
B02Alekhine's defence, Two pawns' (Lasker's) attack24844.8%54.2%
B03Alekhine's defence6728.4%61.9%
B03Alekhine's defence, Balogh variation825.0%75.0%
B03Alekhine's defence, exchange variation51539.0%58.7%
B03Alekhine's defence, exchange, Karpov variation650.0%58.3%
B03Alekhine's defence, four pawns attack20032.0%65.5%
B03Alekhine's defence, four pawns attack, 6...Nc61225.0%45.8%
B03Alekhine's defence, four pawns attack, 7.Be39735.1%67.0%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
B03Alekhine's defence, four pawns attack, Planinc variation333.3%50.0%
B03Alekhine's defence, four pawns attack, Trifunovic variation5435.2%67.6%
B03Alekhine's defence, four pawns attack, fianchetto variation9631.3%57.3%
B04Alekhine's defence, modern variation22133.5%61.1%
B04Alekhine's defence, modern, Keres variation4235.7%72.6%
B04Alekhine's defence, modern, Larsen variation70242.0%60.9%
B04Alekhine's defence, modern, Schmid variation13435.8%61.2%
B04Alekhine's defence, modern, fianchetto variation57533.7%58.1%
B05Alekhine's defence, modern variation, 4...Bg454332.0%65.6%
B05Alekhine's defence, modern, Alekhine variation742.9%50.0%
B05Alekhine's defence, modern, Flohr variation8035.0%65.0%
B05Alekhine's defence, modern, Panov variation911.1%50.0%
B05Alekhine's defence, modern, Vitolins attack20.0%50.0%
B06Robatsch (modern) defence434836.5%56.6%
B06Robatsch defence55536.4%58.4%
B06Robatsch defence, Gurgenidze variation4440.9%54.5%
B06Robatsch defence, Pseudo-Austrian attack39832.7%56.5%
B06Robatsch defence, Two knights variation29633.4%62.0%
B06Robatsch defence, Two knights, Suttles variation94738.4%58.6%
B06Robatsch defence, three pawns attack13531.1%63.7%
B07Pirc defence132837.2%57.5%
B07Pirc, 150 attack19439.2%61.9%
B07Pirc, Byrne variation30732.2%57.5%
B07Pirc, Holmov system1844.4%61.1%
B07Pirc, Sveshnikov system25634.0%51.8%
B07Pirc, Ufimtsev-Pytel variation30938.5%60.0%
B07Pirc, bayonet (Mariotti) attack2755.6%57.4%
B07Robatsch defence, Geller's system53336.4%57.4%
B08Pirc, classical (two knights) system42136.1%57.2%
B08Pirc, classical system, 5.Be2202138.6%56.9%
B08Pirc, classical, h3 system35038.3%59.1%
B09Pirc, Austrian attack16341.1%60.4%
B09Pirc, Austrian attack, 6.Bd3101938.9%60.3%
B09Pirc, Austrian attack, 6.Be325233.3%59.1%
B09Pirc, Austrian attack, 6.e58343.4%56.6%
B09Pirc, Austrian attack, Ljubojevic variation1442.9%50.0%
B09Pirc, Austrian attack, dragon formation72439.0%58.7%
B10Caro-Kann defence182135.5%53.0%
B10Caro-Kann, Goldman (Spielmann) variation4544.4%46.7%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B10Caro-Kann, Two knights variation26136.0%60.2%
B10Caro-Kann, anti-Caro-Kann defence48733.5%59.9%
B10Caro-Kann, anti-anti-Caro-Kann defence119648.5%51.9%
B10Caro-Kann, closed (Breyer) variation53238.7%52.4%
B11Caro-Kann, Two knights, 3...Bg466139.0%55.5%
B12Caro-Kann defence18036.1%51.9%
B12Caro-Kann, 3.Nd213743.1%58.0%
B12Caro-Kann, Edinburgh variation2339.1%54.3%
B12Caro-Kann, Tartakower (fantasy) variation47736.9%54.5%
B12Caro-Kann, advance variation858937.8%56.4%
B12Caro-Kann, advance, Short variation3636.1%51.4%
B12Caro-Masi defence1100.0%50.0%
B12de Bruycker defence520.0%70.0%
B13Caro-Kann, Panov-Botvinnik attack87447.7%52.8%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation2630.8%50.0%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1118.2%54.5%
B13Caro-Kann, Panov-Botvinnik, Herzog defence1435.7%46.4%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation10.0%100.0%
B13Caro-Kann, Panov-Botvinnik, normal variation7850.0%57.1%
B13Caro-Kann, exchange variation69140.1%51.9%
B13Caro-Kann, exchange, Rubinstein variation11734.2%52.1%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6162345.9%55.7%
B14Caro-Kann, Panov-Botvinnik attack, 5...g627750.2%53.2%
B15Caro-Kann defence20632.5%51.2%
B15Caro-Kann, Alekhine gambit2133.3%50.0%
B15Caro-Kann, Forgacs variation21041.4%55.0%
B15Caro-Kann, Gurgenidze counter-attack366.7%66.7%
B15Caro-Kann, Gurgenidze system28538.2%57.4%
B15Caro-Kann, Rasa-Studier gambit911.1%38.9%
B15Caro-Kann, Tartakower (Nimzovich) variation27241.5%55.3%
B16Caro-Kann, Bronstein-Larsen variation42530.8%62.0%
B17Caro-Kann, Steinitz variation342742.6%53.8%
B18Caro-Kann, classical variation128344.2%54.1%
B18Caro-Kann, classical, 6.h444338.6%54.7%
B18Caro-Kann, classical, Flohr variation6454.7%49.2%
B18Caro-Kann, classical, Maroczy attack1020.0%40.0%
B19Caro-Kann, classical, 7...Nd735651.4%52.9%
B19Caro-Kann, classical, Spassky variation255139.1%56.6%
B20Sicilian defence178235.2%50.7%
B20Sicilian, Keres variation (2.Ne2)53940.1%52.5%
B20Sicilian, Steinitz variation30443.8%48.8%
B20Sicilian, wing gambit5750.9%41.2%
B20Sicilian, wing gambit, Carlsbad variation944.4%44.4%
B20Sicilian, wing gambit, Marshall variation6129.5%55.7%
B21Sicilian, Andreaschek gambit1442.9%57.1%
B21Sicilian, Grand Prix attack139835.6%52.3%
B21Sicilian, Smith-Morra gambit59341.3%46.3%
B22Sicilian, 2.c3, Heidenfeld variation5726.3%44.7%
B22Sicilian, Alapin's variation (2.c3)526843.3%54.5%
B23Sicilian, Grand Prix attack59435.7%49.7%
B23Sicilian, Grand Prix attack, Schofman variation14839.9%53.0%
B23Sicilian, chameleon variation47934.2%58.0%
B23Sicilian, closed250938.1%51.7%
B23Sicilian, closed, 2...Nc6143541.3%51.8%
B23Sicilian, closed, Korchnoi variation10753.3%51.9%
B24Sicilian, closed36836.4%48.9%
B24Sicilian, closed, Smyslov variation2133.3%54.8%
B25Sicilian, closed19936.2%49.2%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)3327.3%47.0%
B25Sicilian, closed, 6.f438039.7%50.7%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)2646.2%53.8%
B26Sicilian, closed, 6.Be352633.1%49.4%
B27Sicilian defence1631.3%53.1%
B27Sicilian, Hungarian variation318741.0%57.8%
B27Sicilian, Katalimov variation12045.8%62.9%
B27Sicilian, Quinteros variation3537.1%64.3%
B28Sicilian, O'Kelly variation25537.6%55.3%
B29Sicilian, Nimzovich-Rubinstein variation51540.8%60.4%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit3056.7%45.0%
B30Sicilian defence211540.5%54.5%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)362637.3%56.1%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)229041.4%56.0%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation1560.0%50.0%
B32Sicilian defence70638.0%56.4%
B32Sicilian, Flohr variation18332.8%61.2%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation100339.6%56.6%
B32Sicilian, Labourdonnais-Loewenthal variation19242.7%60.4%
B32Sicilian, Nimzovich variation2339.1%54.3%
B33Sicilian defence38334.2%53.9%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation81834.7%55.3%
B33Sicilian, Pelikan, Bird variation21838.5%64.2%
B33Sicilian, Pelikan, Chelyabinsk variation196135.6%57.2%
B33Sicilian, Sveshnikov variation125738.3%50.8%
B34Sicilian, accelerated fianchetto, exchange variation1747.1%70.6%
B34Sicilian, accelerated fianchetto, modern variation28435.6%52.3%
B35Sicilian, accelerated fianchetto, modern variation with Bc4175343.4%52.5%
B36Sicilian, accelerated fianchetto, Gurgenidze variation22042.7%60.5%
B36Sicilian, accelerated fianchetto, Maroczy bind83144.2%58.1%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg711248.2%55.4%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3104744.3%57.4%
B39Sicilian, accelerated fianchetto, Breyer variation57940.2%58.1%
B40Sicilian defence409738.8%54.2%
B40Sicilian, Anderssen variation63240.0%58.0%
B40Sicilian, Marshall variation10.0%100.0%
B40Sicilian, Pin variation (Sicilian counter-attack)1346.2%69.2%
B40Sicilian, Pin, Koch variation3625.0%79.2%
B41Sicilian, Kan variation19040.5%55.0%
B41Sicilian, Kan, Maroczy bind (Reti variation)39935.8%57.5%
B41Sicilian, Kan, Maroczy bind - Bronstein variation1936.8%28.9%
B42Sicilian, Kan, 5.Bd3151336.7%58.0%
B42Sicilian, Kan, Gipslis variation7839.7%63.5%
B42Sicilian, Kan, Polugaievsky variation112535.9%54.2%
B42Sicilian, Kan, Swiss cheese variation23735.4%61.6%
B43Sicilian, Kan, 5.Nc3237738.5%56.6%
B44Sicilian defence29642.9%52.2%
B44Sicilian, Szen (`anti-Taimanov') variation71538.3%54.3%
B44Sicilian, Szen variation, Dely-Kasparov gambit1758.8%58.8%
B44Sicilian, Szen, hedgehog variation22139.8%50.7%
B45Sicilian, Taimanov variation168637.8%56.9%
B45Sicilian, Taimanov, American attack1145.5%40.9%
B46Sicilian, Taimanov variation288638.1%54.9%
B47Sicilian, Taimanov (Bastrikov) variation349241.1%54.1%
B48Sicilian, Taimanov variation286037.3%55.7%
B49Sicilian, Taimanov variation56544.6%58.6%
B50Sicilian297440.6%52.8%
B50Sicilian, wing gambit deferred2123.8%35.7%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack134339.2%55.2%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7144142.5%49.5%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit18939.7%57.4%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation68843.8%55.7%
B53Sicilian, Chekhover variation95242.0%49.1%
B53Sicilian, Chekhover, Zaitsev variation4221.4%58.3%
B54Sicilian53835.9%55.7%
B54Sicilian, Prins (Moscow) variation34036.8%55.4%
B55Sicilian, Prins variation, Venice attack2850.0%50.0%
B56Sicilian134439.2%53.2%
B56Sicilian, Venice attack5137.3%63.7%
B57Sicilian, Magnus Smith trap1050.0%35.0%
B57Sicilian, Sozin, Benko variation123038.9%52.0%
B57Sicilian, Sozin, not Scheveningen20841.3%55.8%
B58Sicilian, Boleslavsky variation41937.0%47.9%
B58Sicilian, Boleslavsky, Louma variation4434.1%58.0%
B58Sicilian, classical20145.3%46.5%
B59Sicilian, Boleslavsky variation, 7.Nb311245.5%52.2%
B60Sicilian, Richter-Rauzer50233.9%57.2%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2552.0%58.0%
B60Sicilian, Richter-Rauzer, Larsen variation11331.9%62.8%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd232736.7%60.2%
B62Sicilian, Richter-Rauzer, 6...e64337.2%58.1%
B62Sicilian, Richter-Rauzer, Keres variation5726.3%51.8%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation4434.1%53.4%
B62Sicilian, Richter-Rauzer, Podvebrady variation1656.3%34.4%
B62Sicilian, Richter-Rauzer, Richter attack10.0%100.0%
B63Sicilian, Richter-Rauzer, Rauzer attack11935.3%56.3%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7103037.2%56.1%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f424738.5%53.6%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd449440.3%56.0%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6550133.6%51.5%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7256433.1%55.8%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be79130.8%58.2%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf67233.3%61.1%
B70Sicilian, dragon variation63141.5%51.5%
B71Sicilian, dragon, Levenfish variation2536.0%54.0%
B71Sicilian, dragon, Levenfish; Flohr variation1100.0%50.0%
B72Sicilian, dragon, 6.Be37533.3%55.3%
B72Sicilian, dragon, classical attack7838.5%51.3%
B72Sicilian, dragon, classical, Amsterdam variation4124.4%48.8%
B72Sicilian, dragon, classical, Grigoriev variation2445.8%52.1%
B72Sicilian, dragon, classical, Nottingham variation1747.1%52.9%
B73Sicilian, dragon, classical, 8.O-O33843.8%51.8%
B73Sicilian, dragon, classical, Richter variation9341.9%57.5%
B73Sicilian, dragon, classical, Zollner gambit837.5%43.8%
B74Sicilian, dragon, classical, 9.Nb333051.5%47.3%
B74Sicilian, dragon, classical, Alekhine variation2147.6%66.7%
B74Sicilian, dragon, classical, Reti-Tartakower variation7548.0%56.0%
B74Sicilian, dragon, classical, Spielmann variation837.5%56.3%
B75Sicilian, dragon, Yugoslav attack22730.8%56.8%
B76Sicilian, dragon, Yugoslav attack, 7...O-O27934.8%51.4%
B76Sicilian, dragon, Yugoslav attack, Rauser variation85532.9%65.0%
B77Sicilian, dragon, Yugoslav attack, 9...Bd718942.9%56.3%
B77Sicilian, dragon, Yugoslav attack, 9.Bc49931.3%50.0%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O27627.2%55.3%
B79Sicilian, dragon, Yugoslav attack, 12.h41030.0%65.0%
B80Sicilian, Scheveningen variation112130.8%54.3%
B80Sicilian, Scheveningen, English variation13333.1%52.6%
B80Sicilian, Scheveningen, Vitolins variation4746.8%51.1%
B80Sicilian, Scheveningen, fianchetto variation16533.9%51.5%
B81Sicilian, Scheveningen, Keres attack209934.0%59.6%
B82Sicilian, Scheveningen, 6.f441031.7%57.6%
B82Sicilian, Scheveningen, Tal variation9036.7%59.4%
B83Sicilian, Scheveningen, 6.Be251739.8%52.6%
B83Sicilian, modern Scheveningen39742.8%47.6%
B83Sicilian, modern Scheveningen, main line48144.9%53.8%
B83Sicilian, modern Scheveningen, main line with Nb38636.0%57.6%
B84Sicilian, Scheveningen (Paulsen), classical variation342438.6%51.8%
B84Sicilian, Scheveningen, classical, Nd7 system5532.7%49.1%
B85Sicilian, Scheveningen, classical13040.8%51.9%
B85Sicilian, Scheveningen, classical main line33546.9%55.4%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
B85Sicilian, Scheveningen, classical, Maroczy system2437.5%52.1%
B86Sicilian, Sozin attack14241.5%54.6%
B87Sicilian, Sozin with ...a6 and ...b571936.3%51.0%
B88Sicilian, Sozin, Fischer variation1346.2%53.8%
B88Sicilian, Sozin, Leonhardt variation45941.0%54.5%
B89Sicilian, Sozin, 7.Be392236.3%50.3%
B89Sicilian, Velimirovic attack68533.4%50.9%
B90Sicilian, Najdorf230836.3%53.6%
B90Sicilian, Najdorf, Adams attack86436.8%51.6%
B90Sicilian, Najdorf, Byrne (English) attack1770135.0%53.2%
B90Sicilian, Najdorf, Lipnitzky attack83235.1%49.5%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation56837.5%53.4%
B92Sicilian, Najdorf, Opovcensky variation465140.0%53.2%
B93Sicilian, Najdorf, 6.f4148040.2%50.5%
B94Sicilian, Najdorf, 6.Bg562735.7%54.4%
B95Sicilian, Najdorf, 6...e689137.7%49.6%
B96Sicilian, Najdorf, 7.f4106934.3%51.4%
B96Sicilian, Najdorf, Polugayevsky variation9137.4%53.8%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3122.6%56.5%
B97Sicilian, Najdorf, 7...Qb6138232.9%46.4%
B97Sicilian, Najdorf, Poisoned pawn variation104844.6%49.8%
B98Sicilian, Najdorf variation31229.5%57.4%
B98Sicilian, Najdorf, 7...Be711833.9%53.4%
B98Sicilian, Najdorf, Browne variation4228.6%61.9%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2045.0%47.5%
B99Sicilian, Najdorf, 7...Be7 main line54229.2%53.3%
C00French defence45033.8%57.1%
C00French defence, Steiner variation65743.2%51.3%
C00French, Alapin variation475.0%62.5%
C00French, Chigorin variation65631.4%51.1%
C00French, King's Indian attack186637.6%50.5%
C00French, Labourdonnais variation21232.5%46.0%
C00French, Pelikan variation6033.3%53.3%
C00French, Reti (Spielmann) variation14040.7%51.8%
C00French, Reversed Philidor formation1136.4%63.6%
C00French, Schlechter variation16840.5%49.4%
C00French, Steinitz attack911.1%27.8%
C00French, Two knights variation18634.9%50.8%
C00French, Wing gambit2650.0%55.8%
C00Lengfellner system520.0%90.0%
C00St. George defence7847.4%64.7%
C01French, exchange variation117943.8%53.8%
C01French, exchange, Bogolyubov variation333.3%50.0%
C01French, exchange, Svenonius variation2740.7%50.0%
C02French, advance variation100132.6%55.8%
C02French, advance, Euwe variation116235.5%54.2%
C02French, advance, Milner-Barry gambit9234.8%45.7%
C02French, advance, Nimzovich system8830.7%43.8%
C02French, advance, Nimzovich variation560.0%50.0%
C02French, advance, Paulsen attack162833.2%54.9%
C02French, advance, Steinitz variation29833.6%52.3%
C02French, advance, Wade variation30138.5%56.1%
C03French, Tarrasch171044.3%56.8%
C03French, Tarrasch, Guimard variation5425.9%64.8%
C04French, Tarrasch, Guimard main line29329.7%59.2%
C05French, Tarrasch, Botvinnik variation3933.3%62.8%
C05French, Tarrasch, closed variation85831.4%60.1%
C06French, Tarrasch, Leningrad variation1717.6%85.3%
C06French, Tarrasch, closed variation, main line97537.8%59.3%
C07French, Tarrasch, Eliskases variation10347.6%52.9%
C07French, Tarrasch, open variation328247.4%53.6%
C08French, Tarrasch, open, 4.ed ed115649.4%54.5%
C09French, Tarrasch, open variation, main line98949.1%56.7%
C10French, Fort Knox variation56140.5%56.8%
C10French, Frere (Becker) variation1533.3%63.3%
C10French, Marshall variation250.0%25.0%
C10French, Paulsen variation52532.8%57.7%
C10French, Rubinstein variation193149.0%55.2%
C10French, Rubinstein, Capablanca line771.4%50.0%
C11French defence14740.8%54.4%
C11French, Burn variation462044.0%52.9%
C11French, Henneberger variation1338.5%50.0%
C11French, Steinitz variation86138.9%54.5%
C11French, Steinitz, Boleslavsky variation295834.8%57.2%
C11French, Steinitz, Bradford attack1100.0%50.0%
C11French, Steinitz, Gledhill attack10230.4%56.4%
C11French, Swiss variation4247.6%57.1%
C12French, MacCutcheon variation9642.7%50.5%
C12French, MacCutcheon, Bernstein variation1136.4%54.5%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C12French, MacCutcheon, Chigorin variation4942.9%50.0%
C12French, MacCutcheon, Dr. Olland (Dutch) variation4626.1%67.4%
C12French, MacCutcheon, Duras variation425.0%62.5%
C12French, MacCutcheon, Grigoriev variation1741.2%50.0%
C12French, MacCutcheon, Janowski variation12436.3%56.9%
C12French, MacCutcheon, Lasker variation19928.1%58.8%
C12French, MacCutcheon, Lasker variation, 8...g633835.2%59.0%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
C12French, MacCutcheon, advance variation1428.6%21.4%
C13French, Albin-Alekhine-Chatard attack19829.8%54.8%
C13French, Albin-Alekhine-Chatard attack, Breyer variation6241.9%64.5%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1233.3%66.7%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation5742.1%70.2%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation250.0%75.0%
C13French, classical2842.9%42.9%
C13French, classical, Anderssen variation1127.3%40.9%
C13French, classical, Anderssen-Richter variation825.0%50.0%
C13French, classical, Frankfurt variation837.5%81.3%
C13French, classical, Tartakower variation2040.0%40.0%
C13French, classical, Vistaneckis (Nimzovich) variation90.0%66.7%
C14French, classical variation425.0%12.5%
C14French, classical, Alapin variation8446.4%54.2%
C14French, classical, Pollock variation714.3%35.7%
C14French, classical, Rubinstein variation2540.0%52.0%
C14French, classical, Stahlberg variation475.0%62.5%
C14French, classical, Steinitz variation63234.7%57.7%
C14French, classical, Tarrasch variation70.0%57.1%
C15French, Winawer (Nimzovich) variation61041.8%55.3%
C15French, Winawer, Alekhine (Maroczy) gambit14335.7%55.6%
C15French, Winawer, Alekhine gambit, Kan variation4445.5%45.5%
C15French, Winawer, Kondratiyev variation1100.0%50.0%
C15French, Winawer, fingerslip variation2842.9%35.7%
C16French, Winawer, Petrosian variation17732.2%55.1%
C16French, Winawer, advance variation63534.2%57.9%
C17French, Winawer, advance variation5240.4%58.7%
C17French, Winawer, advance, 5.a331928.8%63.6%
C17French, Winawer, advance, Bogolyubov variation32638.3%51.4%
C17French, Winawer, advance, Rauzer variation450.0%75.0%
C17French, Winawer, advance, Russian variation5038.0%53.0%
C18French, Winawer, advance variation37525.9%63.6%
C18French, Winawer, classical variation24932.5%57.6%
C19French, Winawer, advance, 6...Ne724733.2%56.3%
C19French, Winawer, advance, Smyslov variation14127.7%62.1%
C19French, Winawer, advance, poisoned pawn variation233133.3%60.4%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation52229.1%62.6%
C19French, Winawer, advance, positional main line94329.8%57.1%
C20Alapin's opening1729.4%67.6%
C20KP, Indian opening5435.2%41.7%
C20KP, King's head opening250.0%25.0%
C20KP, Lopez opening1233.3%33.3%
C20KP, Mengarini's opening2040.0%25.0%
C20KP, Napoleon's opening633.3%50.0%
C20KP, Patzer opening1618.8%34.4%
C20King's pawn game2040.0%55.0%
C21Centre game13743.8%57.7%
C21Danish gambit10341.7%46.1%
C21Danish gambit, Collijn defence475.0%37.5%
C21Danish gambit, Schlechter defence714.3%50.0%
C21Danish gambit, Soerensen defence2454.2%56.3%
C21Halasz gambit450.0%50.0%
C22Centre game40038.3%46.4%
C22Centre game, Berger variation35038.0%55.0%
C22Centre game, Charousek variation450.0%50.0%
C22Centre game, Hall variation333.3%50.0%
C22Centre game, Paulsen attack17338.2%51.4%
C23Bishop's opening14935.6%55.4%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C23Bishop's opening, Classical variation4839.6%53.1%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
C23Bishop's opening, Lopez gambit20.0%0.0%
C23Bishop's opening, MacDonnell double gambit250.0%25.0%
C23Bishop's opening, Philidor counter-attack12956.6%48.4%
C23Bishop's opening, Philidor variation944.4%55.6%
C24Bishop's opening, Berlin defence82742.2%54.4%
C24Bishop's opening, Ponziani gambit250.0%25.0%
C24Bishop's opening, Urusov gambit3119.4%35.5%
C25Vienna gambit2725.9%53.7%
C25Vienna game23733.8%60.8%
C25Vienna game, Max Lange defence2142.9%50.0%
C25Vienna, Paulsen variation6634.8%56.8%
C25Vienna, Pierce gambit757.1%57.1%
C25Vienna, Steinitz gambit10.0%0.0%
C26Vienna game23244.4%54.1%
C26Vienna, Falkbeer variation4344.2%54.7%
C26Vienna, Mengarini variation1060.0%40.0%
C26Vienna, Paulsen-Mieses variation33440.1%53.3%
C27Boden-Kieseritsky gambit4032.5%31.3%
C27Boden-Kieseritsky gambit, Lichtenhein defence560.0%30.0%
C27Vienna game8644.2%54.7%
C27Vienna, Alekhine variation1145.5%50.0%
C27Vienna, `Frankenstein-Dracula' variation10.0%100.0%
C28Vienna game31341.2%53.2%
C29Vienna gambit15538.7%46.5%
C29Vienna gambit, Bardeleben variation650.0%25.0%
C29Vienna gambit, Breyer variation8229.3%56.1%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C29Vienna gambit, Paulsen attack4100.0%50.0%
C29Vienna gambit, Steinitz variation540.0%40.0%
C30KGD, 2...Nf62626.9%59.6%
C30KGD, Keene's defence560.0%70.0%
C30KGD, Mafia defence837.5%68.8%
C30KGD, Norwalde variation147.1%82.1%
C30KGD, classical counter-gambit10.0%0.0%
C30KGD, classical variation4228.6%59.5%
C30KGD, classical, 4.c32733.3%61.1%
C30KGD, classical, Marshall attack1100.0%50.0%
C30KGD, classical, Reti variation1100.0%50.0%
C30KGD, classical, Svenonius variation1100.0%50.0%
C30King's gambit6738.8%59.7%
C31KGD, Falkbeer counter-gambit2236.4%54.5%
C31KGD, Falkbeer, 3...e44100.0%50.0%
C31KGD, Falkbeer, 4.d3650.0%75.0%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C31KGD, Falkbeer, Nimzovich variation560.0%70.0%
C31KGD, Falkbeer, Rubinstein variation333.3%50.0%
C31KGD, Falkbeer, Tartakower variation475.0%62.5%
C31KGD, Nimzovich counter-gambit1553.3%73.3%
C32KGD, Falkbeer, 5.de837.5%43.8%
C32KGD, Falkbeer, Charousek gambit2100.0%50.0%
C32KGD, Falkbeer, Keres variation10.0%100.0%
C32KGD, Falkbeer, Reti variation450.0%50.0%
C32KGD, Falkbeer, main line, 7...Bf5616.7%91.7%
C33KGA, Breyer gambit333.3%50.0%
C33KGA, Carrera (Basman) gambit10.0%100.0%
C33KGA, Keres (Mason-Steinitz) gambit1450.0%32.1%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit333.3%50.0%
C33KGA, bishop's gambit3537.1%50.0%
C33KGA, bishop's gambit, Bledow variation2412.5%31.3%
C33KGA, bishop's gambit, Boden defence250.0%25.0%
C33KGA, bishop's gambit, Bogolyubov variation728.6%28.6%
C33KGA, bishop's gambit, Cozio (Morphy) defence2100.0%50.0%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
C33KGA, bishop's gambit, Jaenisch variation7640.8%46.7%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit425.0%62.5%
C33KGA, bishop's gambit, Maurian defence366.7%33.3%
C33KGA, bishop's gambit, Morphy variation1330.8%53.8%
C33KGA, bishop's gambit, Paulsen attack450.0%50.0%
C33KGA, bishop's gambit, Ruy Lopez defence1250.0%41.7%
C33KGA, bishop's gambit, Steinitz defence1136.4%45.5%
C33KGA, bishop's gambit, classical defence10.0%0.0%
C33King's gambit accepted10.0%0.0%
C34KGA, Becker defence2941.4%48.3%
C34KGA, Bonsch-Osmolovsky variation2437.5%56.3%
C34KGA, Fischer defence10030.0%46.0%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C34KGA, Schallop defence1526.7%73.3%
C34King's knight's gambit944.4%33.3%
C35KGA, Cunningham defence4339.5%43.0%
C35KGA, Cunningham, Euwe defence1631.3%59.4%
C36KGA, Abbazia defence (classical defence, modern defence[!])3537.1%67.1%
C36KGA, Abbazia defence, modern variation18240.1%44.2%
C37KGA, Blachly gambit1942.1%36.8%
C37KGA, Cochrane gambit333.3%50.0%
C37KGA, King's knight's gambit1369.2%65.4%
C37KGA, Muzio gambit944.4%33.3%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C37KGA, Quaade gambit633.3%16.7%
C37KGA, Rosentreter gambit683.3%41.7%
C37KGA, Salvio gambit250.0%75.0%
C37KGA, Salvio gambit, Anderssen counter-attack40.0%50.0%
C38KGA, Hanstein gambit837.5%43.8%
C38KGA, Philidor gambit128.3%29.2%
C38King's knight's gambit2339.1%28.3%
C39KGA, Allgaier, Walker attack10.0%0.0%
C39KGA, Kieseritsky, Berlin defence5339.6%40.6%
C39KGA, Kieseritsky, Berlin defence, 6.Bc44030.0%35.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%
C39KGA, Kieseritsky, Kolisch defence6642.4%43.9%
C39KGA, Kieseritsky, Neumann defence540.0%80.0%
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%
C39KGA, Kieseritsky, Rice gambit1723.5%29.4%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence4250.0%39.3%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence425.0%37.5%
C40Greco defence1030.0%45.0%
C40Gunderam defence6227.4%70.2%
C40King's knight opening20.0%50.0%
C40Latvian counter-gambit7231.9%64.6%
C40Latvian gambit, 3.Bc41100.0%50.0%
C40Latvian, Fraser defence1118.2%54.5%
C40Latvian, Polerio variation2227.3%40.9%
C40QP counter-gambit (elephant gambit)1353.8%65.4%
C40QP counter-gambit, Maroczy gambit366.7%66.7%
C41Philidor's defence18836.7%59.3%
C41Philidor, Hanham variation2339.1%71.7%
C41Philidor, Hanham, Delmar variation2100.0%50.0%
C41Philidor, Hanham, Krause variation1258.3%37.5%
C41Philidor, Hanham, Schlechter variation1723.5%76.5%
C41Philidor, Hanham, Steiner variation1827.8%69.4%
C41Philidor, Improved Hanham variation83038.7%56.4%
C41Philidor, Larsen variation3023.3%65.0%
C41Philidor, Lopez counter-gambit20.0%50.0%
C41Philidor, Nimzovich (Jaenisch) variation1540.0%53.3%
C41Philidor, Nimzovich variation3145.2%64.5%
C41Philidor, Nimzovich, Klein variation366.7%66.7%
C41Philidor, Nimzovich, Larobok variation3847.4%34.2%
C41Philidor, Nimzovich, Rellstab variation2846.4%69.6%
C41Philidor, Nimzovich, Sokolsky variation366.7%66.7%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
C41Philidor, Paulsen attack250.0%25.0%
C41Philidor, Philidor counter-gambit837.5%56.3%
C41Philidor, Philidor counter-gambit, Zukertort variation650.0%75.0%
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%
C41Philidor, Steinitz variation20.0%0.0%
C41Philidor, exchange variation60335.3%57.8%
C42Petrov three knights game21837.2%57.6%
C42Petrov's defence23244.4%51.5%
C42Petrov, Cochrane gambit5520.0%30.0%
C42Petrov, Cozio (Lasker) attack47649.8%53.0%
C42Petrov, Damiano variation2236.4%50.0%
C42Petrov, French attack333.3%83.3%
C42Petrov, Italian variation6327.0%50.0%
C42Petrov, Kaufmann attack16850.0%48.8%
C42Petrov, Nimzovich attack98845.3%54.8%
C42Petrov, Paulsen attack12540.0%50.4%
C42Petrov, classical attack65246.5%56.5%
C42Petrov, classical attack, Berger variation1172.7%54.5%
C42Petrov, classical attack, Chigorin variation52740.8%56.6%
C42Petrov, classical attack, Jaenisch variation155445.8%58.3%
C42Petrov, classical attack, Krause variation1100.0%50.0%
C42Petrov, classical attack, Marshall variation85942.5%56.5%
C42Petrov, classical attack, Mason variation11042.7%58.6%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C42Petrov, classical attack, close variation12545.6%58.8%
C43Petrov, Urusov gambit633.3%83.3%
C43Petrov, modern (Steinitz) attack3148.4%56.5%
C43Petrov, modern attack, Bardeleben variation425.0%62.5%
C43Petrov, modern attack, Steinitz variation1100.0%50.0%
C43Petrov, modern attack, Symmetrical variation202644.8%53.5%
C43Petrov, modern attack, Trifunovic variation5147.1%49.0%
C43Petrov, modern attack, main line18845.7%58.5%
C44Dresden opening20.0%0.0%
C44Inverted Hanham2433.3%45.8%
C44Inverted Hungarian2045.0%57.5%
C44King's pawn game7334.2%51.4%
C44Konstantinopolsky opening475.0%62.5%
C44Ponziani counter-gambit10542.9%57.6%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C44Ponziani opening28836.1%44.4%
C44Ponziani, Caro variation19841.4%50.0%
C44Ponziani, Fraser defence4837.5%66.7%
C44Ponziani, Jaenisch counter-attack196246.3%53.2%
C44Ponziani, Leonhardt variation8337.3%46.4%
C44Ponziani, Reti variation633.3%50.0%
C44Ponziani, Romanishin variation1631.3%46.9%
C44Ponziani, Steinitz variation42941.5%45.0%
C44Scotch gambit4032.5%58.8%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Scotch gambit, Benima defence4533.3%54.4%
C44Scotch gambit, Dubois-Reti defence26040.0%52.7%
C44Scotch gambit, Hanneken variation10.0%100.0%
C44Scotch opening2100.0%50.0%
C44Scotch, Goering gambit16845.2%57.1%
C44Scotch, Goering gambit, Bardeleben variation837.5%43.8%
C44Scotch, Lolli variation1435.7%53.6%
C44Scotch, Relfsson gambit ('MacLopez')666.7%66.7%
C45Scotch game212842.4%53.3%
C45Scotch, Blackburne attack1637.5%50.0%
C45Scotch, Blumenfeld attack1637.5%31.3%
C45Scotch, Ghulam Kassim variation2100.0%50.0%
C45Scotch, Horwitz attack2433.3%66.7%
C45Scotch, Meitner variation3554.3%55.7%
C45Scotch, Mieses variation122140.0%54.3%
C45Scotch, Paulsen attack10.0%100.0%
C45Scotch, Potter variation44740.7%51.7%
C45Scotch, Pulling counter-attack20.0%50.0%
C45Scotch, Romanishin variation5347.2%59.4%
C45Scotch, Schmidt variation56551.0%47.4%
C45Scotch, Steinitz variation4035.0%55.0%
C45Scotch, Tartakower variation1540.0%46.7%
C46Four knights game54542.6%50.5%
C46Four knights, Gunsberg variation5251.9%51.0%
C46Four knights, Italian variation15441.6%48.7%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C46Three knights game10438.5%51.9%
C46Three knights, Schlechter variation1225.0%37.5%
C46Three knights, Steinitz variation2839.3%55.4%
C46Three knights, Steinitz, Rosenthal variation540.0%40.0%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C47Four knights, Belgrade gambit10647.2%53.8%
C47Four knights, Scotch variation1315.4%61.5%
C47Four knights, Scotch, 4...exd444449.8%54.2%
C47Four knights, Scotch, Krause variation2733.3%64.8%
C48Four knights, Bardeleben variation850.0%50.0%
C48Four knights, Marshall variation20.0%0.0%
C48Four knights, Ranken variation1241.7%62.5%
C48Four knights, Rubinstein counter-gambit91138.4%53.2%
C48Four knights, Rubinstein counter-gambit, 5.Be22100.0%50.0%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1338.5%42.3%
C48Four knights, Rubinstein counter-gambit, Henneberger variation5341.5%49.1%
C48Four knights, Rubinstein counter-gambit, exchange variation13165.6%52.7%
C48Four knights, Spanish variation19952.3%57.3%
C48Four knights, Spanish, classical defence14641.1%50.0%
C48Four knights, Spielmann variation366.7%33.3%
C49Four knights6454.7%49.2%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
C49Four knights, Janowski variation1540.0%60.0%
C49Four knights, Nimzovich (Paulsen) variation5058.0%57.0%
C49Four knights, Svenonius variation10.0%100.0%
C49Four knights, double Ruy Lopez5244.2%62.5%
C49Four knights, symmetrical variation17442.5%55.2%
C49Four knights, symmetrical, Blake variation2100.0%50.0%
C49Four knights, symmetrical, Capablanca variation1457.1%57.1%
C49Four knights, symmetrical, Maroczy system4546.7%52.2%
C49Four knights, symmetrical, Metger unpin30536.1%50.8%
C49Four knights, symmetrical, Pillsbury variation3860.5%46.1%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C50Giuoco Pianissimo133438.4%52.8%
C50Giuoco Pianissimo, Canal variation17243.6%52.6%
C50Giuoco Pianissimo, Italian four knights variation34438.7%51.3%
C50Giuoco Piano28943.6%54.3%
C50Giuoco Piano, four knights variation5236.5%51.0%
C50Hungarian defence14839.2%49.3%
C50King's pawn game20836.1%59.4%
C50Rousseau gambit333.3%50.0%
C51Evans counter-gambit250.0%75.0%
C51Evans gambit450.0%75.0%
C51Evans gambit declined1618.8%53.1%
C51Evans gambit declined, 5.a415540.6%45.5%
C51Evans gambit declined, Lange variation20.0%0.0%
C51Evans gambit declined, Showalter variation2040.0%50.0%
C51Evans gambit, 5...Be73336.4%54.5%
C51Evans gambit, Cordel variation6651.5%45.5%
C51Evans gambit, Fraser attack20.0%100.0%
C51Evans gambit, Goering attack10.0%100.0%
C51Evans gambit, Morphy attack2040.0%55.0%
C51Evans gambit, Paulsen variation1827.8%69.4%
C51Evans gambit, Stone-Ware variation17835.4%50.8%
C51Evans gambit, normal variation1921.1%47.4%
C52Evans gambit25338.7%47.8%
C52Evans gambit, Alapin-Steinitz variation1100.0%50.0%
C52Evans gambit, Lasker defence616.7%25.0%
C52Evans gambit, Levenfish variation616.7%25.0%
C52Evans gambit, Richardson attack2040.0%30.0%
C52Evans gambit, Tartakower attack6643.9%44.7%
C52Evans gambit, Waller attack60.0%100.0%
C52Evans gambit, compromised defence3823.7%69.7%
C52Evans gambit, compromised defence, Paulsen variation1625.0%62.5%
C53Giuoco Piano172737.2%52.3%
C53Giuoco Piano, Anderssen variation1656.3%40.6%
C53Giuoco Piano, Bird's attack12531.2%49.2%
C53Giuoco Piano, LaBourdonnais variation714.3%64.3%
C53Giuoco Piano, Mestel variation1100.0%50.0%
C53Giuoco Piano, centre-holding variation3636.1%59.7%
C53Giuoco Piano, close variation1631.3%71.9%
C54Giuoco Piano16653.6%52.7%
C54Giuoco Piano, Moeller (Therkatz) attack3644.4%47.2%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C55Giuoco piano20.0%50.0%
C55Two knights defence4337.2%48.8%
C55Two knights defence (Modern bishop's opening)112038.9%55.7%
C55Two knights defence, Perreux variation2147.6%52.4%
C55Two knights, Max Lange attack1631.3%59.4%
C55Two knights, Max Lange attack, Loman defence10.0%100.0%
C55Two knights, Max Lange attack, Marshall variation633.3%50.0%
C55Two knights, Max Lange attack, Schlechter variation1942.1%52.6%
C55Two knights, Max Lange attack, Steinitz variation1241.7%62.5%
C56Two knights defence13743.8%48.9%
C56Two knights defence, Canal variation540.0%40.0%
C57Two knights defence812.5%31.3%
C57Two knights defence, Fegatello attack4721.3%55.3%
C57Two knights defence, Fegatello attack, Leonhardt variation250.0%75.0%
C57Two knights defence, Fegatello attack, Polerio defence30.0%100.0%
C57Two knights defence, Fritz variation560.0%30.0%
C57Two knights defence, Fritz, Gruber variation425.0%37.5%
C57Two knights defence, Lolli attack1936.8%55.3%
C57Two knights defence, Ulvestad variation1457.1%42.9%
C57Two knights defence, Wilkes Barre (Traxler) variation4438.6%53.4%
C58Two knights defence14835.8%56.4%
C58Two knights defence, Blackburne variation30.0%66.7%
C58Two knights defence, Bogolyubov variation4729.8%48.9%
C58Two knights defence, Colman variation1723.5%35.3%
C58Two knights defence, Kieseritsky variation633.3%66.7%
C58Two knights defence, Paoli variation933.3%72.2%
C58Two knights defence, Yankovich variation1241.7%20.8%
C59Two knights defence17334.7%48.6%
C59Two knights defence, Goering variation425.0%12.5%
C59Two knights defence, Steinitz variation30029.0%47.2%
C60Ruy Lopez (Spanish opening)2725.9%64.8%
C60Ruy Lopez, Cozio defence21643.1%50.7%
C60Ruy Lopez, Cozio defence, Paulsen variation2927.6%72.4%
C60Ruy Lopez, Lucena defence20.0%50.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence21040.0%52.4%
C61Ruy Lopez, Bird's defence13335.3%59.8%
C61Ruy Lopez, Bird's defence, Paulsen variation333.3%50.0%
C62Ruy Lopez, old Steinitz defence22937.1%55.7%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C63Ruy Lopez, Schliemann defence25243.3%57.3%
C63Ruy Lopez, Schliemann defence, Berger variation31741.3%56.6%
C64Ruy Lopez, Cordel gambit5440.7%57.4%
C64Ruy Lopez, classical (Cordel) defence16442.1%51.5%
C64Ruy Lopez, classical defence, 4.c321840.4%56.4%
C64Ruy Lopez, classical defence, Benelux variation 35438.7%55.8%
C64Ruy Lopez, classical defence, Charousek variation333.3%83.3%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C65Ruy Lopez, Berlin defence228639.3%51.2%
C65Ruy Lopez, Berlin defence, 4.O-O14540.7%59.7%
C65Ruy Lopez, Berlin defence, Beverwijk variation44135.6%57.5%
C65Ruy Lopez, Berlin defence, Duras variation1338.5%50.0%
C65Ruy Lopez, Berlin defence, Kaufmann variation2642.3%55.8%
C65Ruy Lopez, Berlin defence, Mortimer variation1464.3%32.1%
C65Ruy Lopez, Berlin defence, Nyholm attack5352.8%54.7%
C66Ruy Lopez, Berlin defence, 4.O-O, d67951.9%53.8%
C66Ruy Lopez, Berlin defence, hedgehog variation9952.5%57.6%
C66Ruy Lopez, closed Berlin defence, Bernstein variation1435.7%53.6%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
C66Ruy Lopez, closed Berlin defence, Showalter variation5149.0%55.9%
C66Ruy Lopez, closed Berlin defence, Wolf variation5657.1%57.1%
C67Ruy Lopez, Berlin defence, Cordel variation4938.8%60.2%
C67Ruy Lopez, Berlin defence, Minckwitz variation3548.6%61.4%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation1850.0%69.4%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C67Ruy Lopez, Berlin defence, Winawer attack2832.1%69.6%
C67Ruy Lopez, Berlin defence, Zukertort variation1250.0%58.3%
C67Ruy Lopez, Berlin defence, open variation314746.2%54.3%
C67Ruy Lopez, open Berlin defence, 5...Be75832.8%57.8%
C67Ruy Lopez, open Berlin defence, Showalter variation1428.6%42.9%
C67Ruy Lopez, open Berlin defence, l'Hermet variation6955.1%49.3%
C68Ruy Lopez, exchange variation7143.7%51.4%
C68Ruy Lopez, exchange, Alekhine variation1442.9%42.9%
C68Ruy Lopez, exchange, Keres variation7456.8%50.0%
C68Ruy Lopez, exchange, Romanovsky variation1233.3%50.0%
C69Ruy Lopez, exchange variation, 5.O-O55841.8%52.8%
C69Ruy Lopez, exchange variation, Alapin gambit25339.9%49.6%
C69Ruy Lopez, exchange, Bronstein variation42331.4%49.5%
C69Ruy Lopez, exchange, Gligoric variation58340.3%57.0%
C70Ruy Lopez3345.5%50.0%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C70Ruy Lopez, Caro variation7740.3%57.8%
C70Ruy Lopez, Classical defence deferred8144.4%61.7%
C70Ruy Lopez, Cozio defence deferred23644.5%52.8%
C70Ruy Lopez, Graz variation6100.0%50.0%
C70Ruy Lopez, Schliemann defence deferred1729.4%73.5%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation12137.2%64.0%
C70Ruy Lopez, fianchetto defence deferred1266.7%50.0%
C71Ruy Lopez, modern Steinitz defence10342.7%54.4%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation10041.0%55.5%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C72Ruy Lopez, modern Steinitz defence, 5.O-O32242.9%60.2%
C73Ruy Lopez, modern Steinitz defence, Alapin variation5534.5%53.6%
C73Ruy Lopez, modern Steinitz defence, Richter variation13152.7%53.1%
C74Ruy Lopez, Siesta, Kopayev variation9931.3%52.0%
C74Ruy Lopez, modern Steinitz defence5038.0%57.0%
C74Ruy Lopez, modern Steinitz defence, siesta variation1844.4%44.4%
C75Ruy Lopez, modern Steinitz defence13842.0%55.1%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation6132.8%57.4%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation27934.8%51.4%
C77Ruy Lopez, Anderssen variation64741.7%51.5%
C77Ruy Lopez, Morphy defence18638.7%57.0%
C77Ruy Lopez, Morphy defence, Duras variation3444.1%54.4%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)5843.1%45.7%
C77Ruy Lopez, Wormald (Alapin) attack27641.7%54.2%
C77Ruy Lopez, Wormald attack, Gruenfeld variation2100.0%50.0%
C77Ruy Lopez, four knights (Tarrasch) variation14745.6%56.1%
C78Ruy Lopez, ...b5 & ...d64233.3%52.4%
C78Ruy Lopez, 5.O-O98546.4%54.5%
C78Ruy Lopez, Archangelsk (counterthrust) variation141642.2%55.2%
C78Ruy Lopez, Moeller defence50743.0%52.7%
C78Ruy Lopez, Wing attack40.0%50.0%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)21138.9%55.0%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1172.7%54.5%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1241.7%54.2%
C80Ruy Lopez, open (Tarrasch) defence5745.6%59.6%
C80Ruy Lopez, open, 6.d44537.8%45.6%
C80Ruy Lopez, open, 7.Bb348140.7%53.0%
C80Ruy Lopez, open, 8...Be6118638.0%43.1%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C80Ruy Lopez, open, Bernstein variation73845.3%62.9%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2245.5%45.5%
C80Ruy Lopez, open, Friess attack1020.0%60.0%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
C80Ruy Lopez, open, Riga variation1050.0%65.0%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
C80Ruy Lopez, open, Tartakower variation30.0%33.3%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C81Ruy Lopez, open, Howell attack12951.9%50.0%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation40.0%50.0%
C82Ruy Lopez, open, 9.c350.0%80.0%
C82Ruy Lopez, open, Berlin variation1637.5%68.8%
C82Ruy Lopez, open, Dilworth variation15641.0%60.9%
C82Ruy Lopez, open, Italian variation8448.8%66.1%
C82Ruy Lopez, open, Motzko attack5343.4%57.5%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation650.0%75.0%
C82Ruy Lopez, open, St. Petersburg variation18239.6%66.5%
C83Ruy Lopez, open, 9...Be7, 10.Re14334.9%54.7%
C83Ruy Lopez, open, Breslau variation250.0%75.0%
C83Ruy Lopez, open, Malkin variation666.7%66.7%
C83Ruy Lopez, open, classical defence15547.1%60.3%
C84Ruy Lopez, closed defence115740.7%51.6%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C84Ruy Lopez, closed, centre attack16147.8%46.3%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)104339.2%48.3%
C86Ruy Lopez, Worrall attack2454.2%56.3%
C86Ruy Lopez, Worrall attack, sharp line19037.9%54.7%
C86Ruy Lopez, Worrall attack, solid line5831.0%46.6%
C87Ruy Lopez, closed, Averbach variation23741.4%59.5%
C88Ruy Lopez, Trajkovic counter-attack59440.2%51.8%
C88Ruy Lopez, closed117641.1%52.6%
C88Ruy Lopez, closed, 7...O-O262740.0%52.4%
C88Ruy Lopez, closed, 7...d6, 8.d41833.3%16.7%
C88Ruy Lopez, closed, 8.c32737.0%63.0%
C88Ruy Lopez, closed, Balla variation3941.0%48.7%
C88Ruy Lopez, closed, anti-Marshall 8.a4140339.5%54.0%
C89Ruy Lopez, Marshall counter-attack47953.4%54.7%
C89Ruy Lopez, Marshall counter-attack, 11...c616246.3%54.6%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
C89Ruy Lopez, Marshall, main line, 12.d2d420542.4%63.2%
C89Ruy Lopez, Marshall, main line, 14...Qh340451.0%51.2%
C90Ruy Lopez, closed (with ...d6)116536.4%51.6%
C90Ruy Lopez, closed, Lutikov variation3748.6%56.8%
C90Ruy Lopez, closed, Pilnik variation78735.5%51.9%
C90Ruy Lopez, closed, Suetin variation6536.9%56.9%
C91Ruy Lopez, closed, 9.d4116338.3%58.1%
C91Ruy Lopez, closed, Bogolyubov variation369042.8%53.8%
C92Ruy Lopez, closed, 9.h336742.0%52.3%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)178838.4%56.4%
C92Ruy Lopez, closed, Keres (9...a5) variation1250.0%50.0%
C92Ruy Lopez, closed, Kholmov variation11930.3%66.4%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation26442.0%64.2%
C93Ruy Lopez, closed, Smyslov defence14839.2%58.1%
C94Ruy Lopez, closed, Breyer defence4032.5%56.3%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation68739.0%56.3%
C95Ruy Lopez, closed, Breyer, Gligoric variation4645.7%53.3%
C95Ruy Lopez, closed, Breyer, Simagin variation2035.0%57.5%
C96Ruy Lopez, closed (10...c5)58232.0%63.9%
C96Ruy Lopez, closed (8...Na5)1546.7%63.3%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
C96Ruy Lopez, closed, Keres (...Nd7) defence19436.6%65.2%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C97Ruy Lopez, closed, Chigorin defence70331.6%62.6%
C98Ruy Lopez, closed, Chigorin, 12...Nc613631.6%61.4%
C99Ruy Lopez, closed, Chigorin, 12...c5d489840.3%62.7%
D00Blackmar gambit19241.1%41.4%
D00Blackmar-Diemer gambit3020.0%40.0%
D00Blackmar-Diemer, Euwe defence2623.1%42.3%
D00Levitsky attack (Queen's bishop attack)161236.6%52.4%
D00Queen's pawn game44239.6%49.0%
D00Queen's pawn, Anti-Veresov366.7%33.3%
D00Queen's pawn, Chigorin variation28734.8%51.6%
D00Queen's pawn, Mason variation70940.1%50.6%
D00Queen's pawn, Mason variation, Steinitz counter-gambit30935.9%50.0%
D00Queen's pawn, stonewall attack5736.8%43.0%
D01Richter-Veresov attack38736.7%46.3%
D01Richter-Veresov attack, Richter variation1723.5%52.9%
D01Richter-Veresov attack, Veresov variation2045.0%47.5%
D02Queen's bishop game106839.1%53.1%
D02Queen's pawn game441841.1%52.5%
D02Queen's pawn game, Chigorin variation34740.3%58.5%
D02Queen's pawn game, Krause variation33044.5%55.0%
D03Torre attack (Tartakower variation)59939.1%50.8%
D04Queen's pawn game62540.2%50.5%
D05Colle system15648.7%54.5%
D05Queen's pawn game50237.1%52.2%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation20439.7%54.2%
D05Queen's pawn game, Zukertort variation1861.1%52.8%
D06QGD, Grau (Sahovic) defence9136.3%63.2%
D06QGD, Marshall defence10241.2%59.8%
D06QGD, symmetrical (Austrian) defence3250.0%56.3%
D07QGD, Chigorin defence63635.4%57.3%
D07QGD, Chigorin defence, Janowski variation7331.5%63.7%
D08QGD, Albin counter-gambit6334.9%65.1%
D08QGD, Albin counter-gambit, Alapin variation666.7%50.0%
D08QGD, Albin counter-gambit, Balogh variation425.0%87.5%
D08QGD, Albin counter-gambit, Janowski variation425.0%62.5%
D08QGD, Albin counter-gambit, Lasker trap10.0%100.0%
D09QGD, Albin counter-gambit, 5.g36041.7%60.8%
D10QGD Slav defence330441.0%53.6%
D10QGD Slav defence, Alekhine variation22540.4%54.9%
D10QGD Slav defence, exchange variation132443.7%55.4%
D10QGD Slav, Winawer counter-gambit11632.8%52.6%
D11QGD Slav, 3.Nf3182039.8%56.1%
D11QGD Slav, 4.e3330642.3%55.4%
D11QGD Slav, Breyer variation9939.4%58.1%
D12QGD Slav, 4.e3 Bf5262240.0%54.2%
D12QGD Slav, Amsterdam variation2152.4%45.2%
D12QGD Slav, exchange variation8737.9%48.9%
D13QGD Slav, exchange variation62645.5%55.5%
D14QGD Slav, exchange variation, 6.Bf4 Bf562548.8%51.6%
D14QGD Slav, exchange, Trifunovic variation19548.7%52.6%
D15QGD Slav accepted7441.9%49.3%
D15QGD Slav, 4.Nc3319239.6%54.5%
D15QGD Slav, 5.e3 (Alekhine variation)14029.3%54.6%
D15QGD Slav, Schlechter variation26142.5%58.8%
D15QGD Slav, Slav gambit1625.0%56.3%
D15QGD Slav, Suechting variation11231.3%57.6%
D15QGD Slav, Tolush-Geller gambit10828.7%41.2%
D16QGD Slav accepted, Alapin variation14141.1%64.5%
D16QGD Slav, Smyslov variation5635.7%60.7%
D16QGD Slav, Soultanbeieff variation34149.9%53.4%
D16QGD Slav, Steiner variation19536.9%64.6%
D17QGD Slav, Carlsbad variation45837.3%60.8%
D17QGD Slav, Czech defence33447.9%54.8%
D17QGD Slav, Krause attack61039.2%58.3%
D17QGD Slav, Wiesbaden variation58442.1%57.2%
D18QGD Slav, Dutch variation23839.1%59.9%
D18QGD Slav, Dutch, Lasker variation333.3%83.3%
D19QGD Slav, Dutch variation121738.6%57.6%
D19QGD Slav, Dutch variation, main line18241.2%57.4%
D19QGD Slav, Dutch, Saemisch variation1100.0%50.0%
D20QGA, 3.e4244140.1%56.9%
D20QGA, Linares variation7236.1%61.1%
D20Queen's gambit accepted80645.2%55.8%
D21QGA, 3.Nf321739.2%57.8%
D21QGA, Alekhine defense, Borisenko-Furman variation2128.6%52.4%
D21QGA, Ericson variation40.0%25.0%
D22QGA, Alekhine defence18839.4%56.9%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
D22QGA, Haberditz variation9055.6%52.2%
D23QGA, Mannheim variation26946.1%52.0%
D23Queen's gambit accepted2540.0%52.0%
D24QGA, 4.Nc318440.8%50.8%
D24QGA, Bogolyubov variation13746.7%56.9%
D25QGA, 4.e38536.5%54.7%
D25QGA, Flohr variation6129.5%65.6%
D25QGA, Janowsky-Larsen variation31538.7%57.1%
D25QGA, Smyslov variation8051.3%59.4%
D26QGA, 4...e624146.1%55.0%
D26QGA, classical variation59951.9%52.2%
D26QGA, classical variation, 6.O-O13346.6%56.4%
D26QGA, classical, Furman variation10.0%0.0%
D26QGA, classical, Steinitz variation3043.3%65.0%
D27QGA, classical, 6...a6350050.0%55.2%
D27QGA, classical, Geller variation7255.6%52.8%
D27QGA, classical, Rubinstein variation137046.7%56.0%
D28QGA, classical, 7...b518550.8%56.8%
D28QGA, classical, 7.Qe26251.6%61.3%
D29QGA, classical, 8...Bb729240.4%47.6%
D29QGA, classical, Smyslov variation4055.0%45.0%
D30QGD68647.5%51.9%
D30QGD Slav24346.1%55.1%
D30QGD Slav, Semmering variation1827.8%47.2%
D30QGD, Capablanca variation3036.7%55.0%
D30QGD, Capablanca-Duras variation27146.9%54.1%
D30QGD, Hastings variation42345.9%52.7%
D30QGD, Vienna variation42455.2%52.6%
D30Queen's gambit declined525144.7%55.9%
D31QGD, 3.Nc366341.3%54.9%
D31QGD, Alapin variation742.9%64.3%
D31QGD, Charousek (Petrosian) variation119044.6%52.7%
D31QGD, Janowski variation8143.2%48.8%
D31QGD, semi-Slav76537.8%54.3%
D31QGD, semi-Slav, Abrahams variation12334.1%43.9%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
D31QGD, semi-Slav, Koomen variation742.9%35.7%
D31QGD, semi-Slav, Marshall gambit56643.3%52.7%
D31QGD, semi-Slav, Noteboom variation22138.0%52.9%
D32QGD, Tarrasch defence27046.3%55.0%
D32QGD, Tarrasch defence, 4.cd ed1533.3%56.7%
D32QGD, Tarrasch defence, Marshall gambit633.3%50.0%
D32QGD, Tarrasch defence, Tarrasch gambit540.0%20.0%
D32QGD, Tarrasch, von Hennig-Schara gambit5141.2%61.8%
D33QGD, Tarrasch, Folkestone (Swedish) variation4254.8%58.3%
D33QGD, Tarrasch, Prague variation5930.5%52.5%
D33QGD, Tarrasch, Schlechter-Rubinstein system1338.5%50.0%
D33QGD, Tarrasch, Wagner variation922.2%66.7%
D34QGD, Tarrasch, Prague variation, 7...Be716443.9%55.5%
D34QGD, Tarrasch, Prague variation, 9.Bg551647.1%57.7%
D34QGD, Tarrasch, Prague variation, Normal position62947.4%56.4%
D34QGD, Tarrasch, Reti variation2161.9%59.5%
D35QGD, 3...Nf67842.3%49.4%
D35QGD, Harrwitz attack18851.6%55.1%
D35QGD, exchange variation34843.1%56.6%
D35QGD, exchange, Saemisch variation24846.0%54.4%
D35QGD, exchange, positional line83440.6%53.9%
D35QGD, exchange, positional line, 5...c667741.2%54.7%
D36QGD, exchange, positional line, 6.Qc219742.1%54.6%
D37QGD, 4.Nf3479846.5%52.7%
D37QGD, classical variation (5.Bf4)369744.5%55.2%
D38QGD, Ragozin variation324545.9%52.5%
D39QGD, Ragozin, Vienna variation146551.0%51.2%
D40QGD, Semi-Tarrasch defence41342.1%55.0%
D40QGD, Semi-Tarrasch defence, Pillsbury variation2035.0%52.5%
D40QGD, Semi-Tarrasch, symmetrical variation757.1%57.1%
D41QGD, Semi-Tarrasch with e311846.6%53.0%
D41QGD, Semi-Tarrasch, 5.cd56847.4%58.5%
D41QGD, Semi-Tarrasch, Kmoch variation875.0%50.0%
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%
D42QGD, Semi-Tarrasch, 7.Bd323842.4%56.5%
D43QGD semi-Slav584741.2%52.9%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D44QGD semi-Slav, 5.Bg5 dc13641.9%49.6%
D44QGD semi-Slav, Botvinnik system (anti-Meran)6637.9%52.3%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D44QGD semi-Slav, anti-Meran gambit74334.9%58.3%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation14932.2%65.8%
D44QGD semi-Slav, anti-Meran, Szabo variation2420.8%35.4%
D45QGD semi-Slav, 5...Nd749538.6%54.0%
D45QGD semi-Slav, 5.e339040.3%56.8%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1533.3%43.3%
D45QGD semi-Slav, Stoltz variation1096843.6%53.4%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)162243.1%54.0%
D45QGD semi-Slav, stonewall defence1154.5%54.5%
D46QGD semi-Slav, 6.Bd33540.0%62.9%
D46QGD semi-Slav, Bogolyubov variation15543.2%56.5%
D46QGD semi-Slav, Chigorin defence41544.6%53.9%
D46QGD semi-Slav, Romih variation16336.8%64.4%
D47QGD semi-Slav, 7.Bc45536.4%52.7%
D47QGD semi-Slav, Meran variation116649.7%55.1%
D47QGD semi-Slav, Meran, Wade variation676239.3%53.5%
D47QGD semi-Slav, neo-Meran (Lundin variation)26748.7%54.3%
D48QGD semi-Slav, Meran205.0%37.5%
D48QGD semi-Slav, Meran, 8...a6135249.9%48.7%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
D48QGD semi-Slav, Meran, Reynolds' variation71740.0%56.3%
D48QGD semi-Slav, Meran, old main line11135.1%52.7%
D49QGD semi-Slav, Meran, Blumenfeld variation15545.8%50.6%
D49QGD semi-Slav, Meran, Rabinovich variation5825.9%45.7%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
D49QGD semi-Slav, Meran, Sozin variation15344.4%45.8%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
D50QGD, 4.Bg56543.1%53.8%
D50QGD, Been-Koomen variation30.0%0.0%
D50QGD, Canal (Venice) variation20.0%50.0%
D50QGD, Semi-Tarrasch1030.0%45.0%
D50QGD, Semi-Tarrasch, Krause variation1100.0%50.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1241.7%54.2%
D51QGD933.3%72.2%
D51QGD, 4.Bg5 Nbd75935.6%53.4%
D51QGD, 5...c65750.9%51.8%
D51QGD, Alekhine variation40.0%50.0%
D51QGD, Capablanca anti-Cambridge Springs variation862.5%68.8%
D51QGD, Manhattan variation633.3%66.7%
D52QGD12141.3%57.0%
D52QGD, Cambridge Springs defence3145.2%38.7%
D52QGD, Cambridge Springs defence, 7.cd3435.3%50.0%
D52QGD, Cambridge Springs defence, Argentine variation1931.6%42.1%
D52QGD, Cambridge Springs defence, Bogoljubow variation37147.2%56.2%
D52QGD, Cambridge Springs defence, Capablanca variation3534.3%60.0%
D52QGD, Cambridge Springs defence, Rubinstein variation14338.5%54.2%
D52QGD, Cambridge Springs defence, Yugoslav variation32839.3%58.4%
D53QGD, 4.Bg5 Be790645.0%54.1%
D53QGD, 4.Bg5 Be7, 5.e3 O-O3348.5%51.5%
D53QGD, Lasker variation425.0%87.5%
D54QGD, Anti-neo-orthodox variation2842.9%42.9%
D55QGD, 6.Nf311632.8%57.8%
D55QGD, Neo-orthodox variation633.3%50.0%
D55QGD, Neo-orthodox variation, 7.Bh411742.7%56.4%
D55QGD, Neo-orthodox variation, 7.Bxf629943.5%52.2%
D55QGD, Petrosian variation34951.9%53.4%
D56QGD, Lasker defence27843.2%54.0%
D56QGD, Lasker defence, Teichmann variation8650.0%49.4%
D57QGD, Lasker defence, Bernstein variation450.0%50.0%
D57QGD, Lasker defence, main line4358.1%52.3%
D58QGD, Tartakower (Makagonov-Bondarevsky) system481146.4%51.9%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd517948.6%46.6%
D59QGD, Tartakower variation10543.8%46.7%
D60QGD, Orthodox defence8130.9%56.2%
D60QGD, Orthodox defence, Botvinnik variation6532.3%50.0%
D60QGD, Orthodox defence, Rauzer variation2638.5%65.4%
D61QGD, Orthodox defence, Rubinstein variation20343.3%50.7%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)12949.6%55.8%
D63QGD, Orthodox defence6446.9%54.7%
D63QGD, Orthodox defence, 7.Rc120136.3%58.0%
D63QGD, Orthodox defence, Capablanca variation1100.0%50.0%
D63QGD, Orthodox defence, Pillsbury attack1330.8%76.9%
D63QGD, Orthodox defence, Swiss (Henneberger) variation8344.6%62.0%
D63QGD, Orthodox defence, Swiss, Karlsbad variation15142.4%52.3%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)9545.3%56.3%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation1421.4%46.4%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation1844.4%33.3%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
D65QGD, Orthodox defence, Rubinstein attack, main line1154.5%72.7%
D66QGD, Orthodox defence, Bd3 line22245.9%59.5%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation742.9%78.6%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
D67QGD, Orthodox defence, Bd3 line, 11.O-O4533.3%65.6%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation3354.5%54.5%
D68QGD, Orthodox defence, classical variation6147.5%56.6%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)4254.8%58.3%
D69QGD, Orthodox defence, classical, 13.de1553.3%53.3%
D70Neo-Gruenfeld (Kemeri) defence2634.6%55.8%
D70Neo-Gruenfeld defence17237.2%57.0%
D71Neo-Gruenfeld, 5.cd26146.0%56.3%
D72Neo-Gruenfeld, 5.cd, main line15733.1%59.9%
D73Neo-Gruenfeld, 5.Nf365050.3%55.3%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O19143.5%55.8%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc37345.2%61.0%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc1526.7%73.3%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb648944.2%56.9%
D77Neo-Gruenfeld, 6.O-O63046.2%54.4%
D78Neo-Gruenfeld, 6.O-O c671042.1%54.6%
D79Neo-Gruenfeld, 6.O-O, main line43448.4%54.1%
D80Gruenfeld defence51946.2%53.9%
D80Gruenfeld, Lundin variation10.0%0.0%
D80Gruenfeld, Stockholm variation60743.0%54.0%
D81Gruenfeld, Russian variation24342.0%62.6%
D82Gruenfeld, 4.Bf448344.7%53.8%
D83Gruenfeld, Gruenfeld gambit1533.3%63.3%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1573.3%63.3%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation17346.2%56.1%
D84Gruenfeld, Gruenfeld gambit accepted4348.8%54.7%
D85Gruenfeld, exchange variation225747.1%56.3%
D85Gruenfeld, modern exchange variation289046.0%56.0%
D86Gruenfeld, exchange, Larsen variation10.0%100.0%
D86Gruenfeld, exchange, Simagin's improved variation8538.8%52.4%
D86Gruenfeld, exchange, Simagin's lesser variation2626.9%55.8%
D86Gruenfeld, exchange, classical variation92146.3%55.2%
D87Gruenfeld, exchange, Seville variation7553.3%62.7%
D87Gruenfeld, exchange, Spassky variation45241.4%54.5%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd18742.2%60.7%
D89Gruenfeld, Spassky variation, main line, 13.Bd37038.6%49.3%
D89Gruenfeld, exchange, Sokolsky variation850.0%37.5%
D90Gruenfeld, Flohr variation18833.0%56.4%
D90Gruenfeld, Schlechter variation1833.3%38.9%
D90Gruenfeld, Three knights variation40346.9%54.0%
D91Gruenfeld, 5.Bg582738.9%48.1%
D92Gruenfeld, 5.Bf462844.4%57.4%
D93Gruenfeld with Bf4 e323850.4%52.5%
D94Gruenfeld with e3 Bd31650.0%56.3%
D94Gruenfeld, 5.e337844.2%57.8%
D94Gruenfeld, Flohr defence1850.0%58.3%
D94Gruenfeld, Makogonov variation7548.0%46.7%
D94Gruenfeld, Opovcensky variation12840.6%53.9%
D94Gruenfeld, Smyslov defence14446.5%55.9%
D95Gruenfeld with e3 & Qb31457.1%64.3%
D95Gruenfeld, Botvinnik variation5843.1%49.1%
D96Gruenfeld, Russian variation18939.2%55.0%
D97Gruenfeld, Russian variation with e42334.8%65.2%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation143743.8%51.2%
D97Gruenfeld, Russian, Byrne (Simagin) variation10440.4%61.5%
D97Gruenfeld, Russian, Levenfish variation742.9%64.3%
D97Gruenfeld, Russian, Prins variation41742.4%57.7%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation16141.0%58.4%
D98Gruenfeld, Russian, Keres variation922.2%55.6%
D98Gruenfeld, Russian, Smyslov variation22941.5%60.5%
D99Gruenfeld defence, Smyslov, Yugoslav variation1127.3%50.0%
D99Gruenfeld defence, Smyslov, main line15439.6%58.1%
E00Catalan opening276042.7%54.9%
E00Neo-Indian (Seirawan) attack15931.4%52.8%
E00Queen's pawn game36241.4%56.4%
E01Catalan, closed37646.5%51.2%
E02Catalan, open, 5.Qa412644.4%58.7%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc46852.9%39.7%
E03Catalan, open, Alekhine variation1421.4%39.3%
E04Catalan, open, 5.Nf3367043.3%53.1%
E05Catalan, open, classical line8549.4%56.5%
E06Catalan, closed, 5.Nf3267948.5%53.6%
E07Catalan, closed, 6...Nbd75335.8%50.0%
E07Catalan, closed, Botvinnik variation6442.2%41.4%
E08Catalan, closed, 7.Qc27737.7%60.4%
E08Catalan, closed, Qc2 & b317442.0%52.0%
E08Catalan, closed, Spassky gambit520.0%50.0%
E09Catalan, closed, main line19734.0%60.2%
E10Blumenfeld counter-gambit28342.4%54.8%
E10Blumenfeld counter-gambit accepted11140.5%55.4%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation14434.7%57.6%
E10Blumenfeld counter-gambit, Spielmann variation5937.3%57.6%
E10Doery defence2142.9%54.8%
E10Dzindzikhashvili defence4751.1%61.7%
E10Queen's pawn game359045.4%55.8%
E11Bogo-Indian defence127339.0%54.9%
E11Bogo-Indian defence, Gruenfeld variation166039.7%56.2%
E11Bogo-Indian defence, Monticelli trap1136.4%45.5%
E11Bogo-Indian defence, Nimzovich variation126237.6%58.0%
E12Queen's Indian defence60441.4%54.0%
E12Queen's Indian, 4.Nc3411639.7%52.9%
E12Queen's Indian, 4.Nc3, Botvinnik variation3020.0%43.3%
E12Queen's Indian, Miles variation118544.6%52.5%
E12Queen's Indian, Petrosian system573642.4%54.0%
E13Queen's Indian, 4.Nc3, main line20135.8%52.2%
E14Queen's Indian, 4.e3153139.8%53.5%
E14Queen's Indian, Averbakh variation20.0%50.0%
E15Queen's Indian, 4.g3170345.6%56.2%
E15Queen's Indian, 4.g3 Bb721539.5%53.7%
E15Queen's Indian, Buerger variation2437.5%60.4%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1310240.0%56.4%
E15Queen's Indian, Rubinstein variation10434.6%58.7%
E16Queen's Indian, Capablanca variation29640.9%55.9%
E16Queen's Indian, Riumin variation19040.0%56.3%
E16Queen's Indian, Yates variation29536.9%58.1%
E17Queen's Indian, 5.Bg2 Be72828.6%39.3%
E17Queen's Indian, Euwe variation5851.7%55.2%
E17Queen's Indian, Opovcensky variation59238.7%54.0%
E17Queen's Indian, anti-Queen's Indian system23738.4%52.5%
E17Queen's Indian, old main line, 6.O-O71241.6%58.4%
E18Queen's Indian, old main line, 7.Nc3145643.4%56.7%
E19Queen's Indian, old main line, 9.Qxc3126145.4%59.0%
E20Nimzo-Indian defence9350.5%51.1%
E20Nimzo-Indian, Kmoch variation58638.1%53.7%
E20Nimzo-Indian, Mikenas attack666.7%50.0%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system34845.7%53.0%
E21Nimzo-Indian, three knights variation202841.5%53.6%
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%
E22Nimzo-Indian, Spielmann variation9241.3%50.0%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc63438.2%54.4%
E23Nimzo-Indian, Spielmann, Karlsbad variation1540.0%40.0%
E23Nimzo-Indian, Spielmann, San Remo variation540.0%80.0%
E24Nimzo-Indian, Saemisch variation14547.6%47.9%
E24Nimzo-Indian, Saemisch, Botvinnik variation4436.4%43.2%
E25Nimzo-Indian, Saemisch variation9940.4%52.5%
E25Nimzo-Indian, Saemisch, Keres variation24544.9%53.5%
E25Nimzo-Indian, Saemisch, Romanovsky variation6841.2%47.1%
E26Nimzo-Indian, Saemisch variation4344.2%50.0%
E26Nimzo-Indian, Saemisch, O'Kelly variation2128.6%57.1%
E27Nimzo-Indian, Saemisch variation4445.5%40.9%
E28Nimzo-Indian, Saemisch variation8924.7%51.7%
E29Nimzo-Indian, Saemisch, Capablanca variation2236.4%40.9%
E29Nimzo-Indian, Saemisch, main line7339.7%55.5%
E30Nimzo-Indian, Leningrad variation51935.1%48.4%
E30Nimzo-Indian, Leningrad, ...b5 gambit4930.6%45.9%
E31Nimzo-Indian, Leningrad, main line16631.3%51.8%
E32Nimzo-Indian, classical variation555842.2%53.7%
E32Nimzo-Indian, classical, Adorjan gambit9544.2%50.5%
E33Nimzo-Indian, classical, 4...Nc66050.0%55.0%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation24639.4%58.7%
E34Nimzo-Indian, classical, Noa variation68252.9%54.3%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed47443.9%50.6%
E36Nimzo-Indian, classical, Botvinnik variation1030.0%65.0%
E36Nimzo-Indian, classical, Noa variation, 5.a324444.7%52.3%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc225048.0%62.0%
E37Nimzo-Indian, classical, San Remo variation30.0%66.7%
E38Nimzo-Indian, classical, 4...c549938.3%60.8%
E39Nimzo-Indian, classical, Pirc variation83838.5%54.7%
E40Nimzo-Indian, 4.e311428.1%56.1%
E40Nimzo-Indian, 4.e3, Taimanov variation5932.2%63.6%
E41Nimzo-Indian, 4.e3 c561643.3%54.1%
E41Nimzo-Indian, e3, Huebner variation43632.8%50.6%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)49944.7%53.4%
E43Nimzo-Indian, Fischer variation51036.7%53.6%
E44Nimzo-Indian, Fischer variation, 5.Ne228935.6%54.5%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation14452.8%56.9%
E46Nimzo-Indian, 4.e3 O-O5930.5%57.6%
E46Nimzo-Indian, Reshevsky variation77043.6%51.3%
E46Nimzo-Indian, Simagin variation9938.4%49.5%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd345946.0%52.0%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d538439.6%49.0%
E49Nimzo-Indian, 4.e3, Botvinnik system16245.7%56.8%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d514740.1%50.0%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d510549.5%48.6%
E51Nimzo-Indian, 4.e3, Ragozin variation2138.1%66.7%
E52Nimzo-Indian, 4.e3, main line with ...b641339.5%52.4%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd73961.5%48.7%
E53Nimzo-Indian, 4.e3, Keres variation8237.8%45.7%
E53Nimzo-Indian, 4.e3, main line with ...c533538.8%55.2%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc113048.3%55.8%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation1968.4%65.8%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation170847.1%55.2%
E56Nimzo-Indian, 4.e3, main line with 7...Nc629853.0%55.7%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd333.3%16.7%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3137144.2%52.8%
E59Nimzo-Indian, 4.e3, main line70143.1%53.1%
E60King's Indian defence49835.7%57.6%
E60King's Indian, 3.Nf3239739.7%57.8%
E60King's Indian, 3.g3126142.0%56.5%
E60King's Indian, 3.g3, counterthrust variation911.1%27.8%
E60King's Indian, Anti-Gruenfeld4434.1%60.2%
E60Queen's pawn, Mengarini attack3531.4%61.4%
E61King's Indian defence, 3.Nc365536.5%55.8%
E61King's Indian, Smyslov system7537.3%52.0%
E62King's Indian, fianchetto variation5836.2%49.1%
E62King's Indian, fianchetto with ...Nc620534.6%53.9%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation52432.4%60.5%
E62King's Indian, fianchetto, Larsen system24141.5%61.4%
E62King's Indian, fianchetto, Simagin variation8135.8%63.6%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation23531.1%59.4%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation24437.7%60.2%
E63King's Indian, fianchetto, Panno variation199237.0%57.3%
E64King's Indian, fianchetto, Yugoslav system8438.1%58.3%
E65King's Indian, fianchetto, Yugoslav, 7.O-O15151.0%53.3%
E66King's Indian, fianchetto, Yugoslav Panno28332.5%56.9%
E67King's Indian, fianchetto with ...Nd77337.0%52.7%
E67King's Indian, fianchetto, classical variation44039.5%55.9%
E68King's Indian, fianchetto, classical variation, 8.e4113438.4%60.2%
E69King's Indian, fianchetto, classical main line41333.7%61.1%
E70King's Indian, 4.e477733.1%58.8%
E70King's Indian, Kramer system28628.0%58.4%
E70King's Indian, accelerated Averbakh system9135.2%57.1%
E71King's Indian, Makagonov system (5.h3)58734.1%59.3%
E72King's Indian with e4 & g35435.2%56.5%
E72King's Indian, Pomar system616.7%58.3%
E73King's Indian, 5.Be23141.9%59.7%
E73King's Indian, Averbakh system79831.8%54.3%
E73King's Indian, Semi-Averbakh system2040.0%55.0%
E74King's Indian, Averbakh, 6...c521733.2%55.8%
E75King's Indian, Averbakh, main line4223.8%59.5%
E76King's Indian, Four pawns attack19636.2%60.5%
E76King's Indian, Four pawns attack, dynamic line13031.5%54.2%
E77King's Indian, Four pawns attack10131.7%57.4%
E77King's Indian, Four pawns attack, 6.Be2944.4%55.6%
E77King's Indian, Four pawns attack, Florentine gambit2100.0%50.0%
E78King's Indian, Four pawns attack, with Be2 and Nf310.0%0.0%
E79King's Indian, Four pawns attack, main line60.0%66.7%
E80King's Indian, Saemisch variation27333.7%57.5%
E81King's Indian, Saemisch, 5...O-O183433.7%54.9%
E81King's Indian, Saemisch, Byrne variation7339.7%52.7%
E82King's Indian, Saemisch, double fianchetto variation8332.5%59.6%
E83King's Indian, Saemisch, 6...Nc65228.8%47.1%
E83King's Indian, Saemisch, Panno formation17042.4%56.5%
E83King's Indian, Saemisch, Ruban variation1136.4%45.5%
E84King's Indian, Saemisch, Panno main line34838.2%52.2%
E85King's Indian, Saemisch, orthodox variation4831.3%51.0%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c631428.7%53.5%
E87King's Indian, Saemisch, orthodox, 7.d524127.4%59.3%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
E88King's Indian, Saemisch, orthodox, 7.d5 c628932.5%58.1%
E89King's Indian, Saemisch, orthodox main line2433.3%62.5%
E90King's Indian, 5.Nf375233.2%56.9%
E90King's Indian, Larsen variation7839.7%60.9%
E90King's Indian, Zinnowitz variation2846.4%55.4%
E91King's Indian, 6.Be254833.0%64.5%
E91King's Indian, Kazakh variation28436.6%55.3%
E92King's Indian, Andersson variation24452.0%50.2%
E92King's Indian, Gligoric-Taimanov system133733.4%58.5%
E92King's Indian, Petrosian system7726.0%50.6%
E92King's Indian, Petrosian system, Stein variation51132.9%53.0%
E92King's Indian, classical variation2339.1%41.3%
E93King's Indian, Petrosian system, main line7634.2%50.0%
E94King's Indian, orthodox variation92936.9%54.3%
E94King's Indian, orthodox, 7...Nbd783133.2%60.8%
E94King's Indian, orthodox, Donner variation14638.4%59.6%
E95King's Indian, orthodox, 7...Nbd7, 8.Re130635.0%55.7%
E96King's Indian, orthodox, 7...Nbd7, main line3342.4%57.6%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)381632.8%56.2%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack116035.6%58.1%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne182726.8%60.9%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack4920.4%67.3%
E99King's Indian, orthodox, Aronin-Taimanov, main line1625.0%62.5%

Created in 2005-2013 by CCRL team
Last games added on May 27, 2017