CCRL 40/40
Downloads and Statistics
March 25, 2017
Testing summary:
Total: 700'132 games
played by 1'850 programs
96442 CPU days (X2 4600+)

White wins: 241'332 (34.5%)
Black wins: 179'363 (25.6%)
Draws: 279'437 (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 opening33841.7%50.1%
A00Anti-Borg (Desprez) opening30.0%33.3%
A00Battambang opening1631.3%46.9%
A00Benko's opening477641.0%52.4%
A00Benko's opening, reversed Alekhine11342.5%48.7%
A00Clemenz (Mead's, Basman's or de Klerk's) opening1833.3%38.9%
A00Dunst (Sleipner, Heinrichsen) opening123534.7%49.6%
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 opening1735.3%52.9%
A00Polish (Sokolsky) opening142337.7%48.1%
A00Polish, Outflank variation10045.0%48.5%
A00Saragossa opening24229.8%49.2%
A00Van't Kruijs opening42740.0%50.9%
A00Ware (Meadow Hay) opening425.0%62.5%
A01Nimzovich-Larsen attack46337.6%51.4%
A01Nimzovich-Larsen attack, Dutch variation1330.8%46.2%
A01Nimzovich-Larsen attack, English variation14037.1%51.4%
A01Nimzovich-Larsen attack, Indian variation22730.8%49.3%
A01Nimzovich-Larsen attack, classical variation76936.5%50.0%
A01Nimzovich-Larsen attack, modern variation238540.1%50.4%
A01Nimzovich-Larsen attack, symmetrical variation48041.7%49.2%
A02Bird's opening244036.1%48.5%
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 opening280736.1%48.0%
A03Bird's opening, Lasker variation8027.5%42.5%
A03Bird's opening, Williams gambit1735.3%70.6%
A03Mujannah opening450.0%25.0%
A04Reti opening653837.9%54.4%
A04Reti v Dutch82934.3%58.4%
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 opening283636.7%53.2%
A05Reti, King's Indian attack104740.1%53.2%
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 attack229541.4%50.0%
A06Reti, old Indian attack8523.5%47.1%
A06Santasiere's folly8837.5%41.5%
A06Tennison (Lemberg, Zukertort) gambit1656.3%40.6%
A07Reti, King's Indian attack159543.8%53.6%
A07Reti, King's Indian attack (Barcza system)367341.1%54.1%
A07Reti, King's Indian attack (with ...c5)15740.1%50.0%
A07Reti, King's Indian attack, Keres variation58533.8%54.4%
A07Reti, King's Indian attack, Pachman system10338.8%53.4%
A07Reti, King's Indian attack, Yugoslav variation150139.6%53.0%
A08Reti, King's Indian attack49142.0%52.3%
A08Reti, King's Indian attack, French variation24237.6%47.7%
A09Reti accepted21340.4%52.1%
A09Reti accepted, Keres variation3831.6%68.4%
A09Reti opening43839.0%53.1%
A09Reti, advance variation58438.7%49.0%
A10English opening225037.5%54.8%
A10English, Adorjan defence25538.8%57.5%
A10English, Anglo-Dutch defense54532.1%53.3%
A10English, Jaenisch gambit20.0%100.0%
A11English, Caro-Kann defensive system107039.6%54.5%
A12English, Bled variation1643.8%59.4%
A12English, Capablanca's variation5832.8%45.7%
A12English, Caro-Kann defensive system12837.5%47.7%
A12English, Caro-Kann defensive system, Bogolyubov variation7647.4%52.6%
A12English, London defensive system11442.1%53.5%
A12English, New York (London) defensive system3250.0%43.8%
A12English, Torre defensive system3644.4%55.6%
A13English opening170736.7%51.5%
A13English opening, Agincourt variation107539.1%54.4%
A13English, Kurajica defence5731.6%57.9%
A13English, Neo-Catalan62240.2%53.1%
A13English, Neo-Catalan accepted97545.4%57.0%
A13English, Romanishin gambit22742.3%55.1%
A13English, Wimpey system9440.4%50.0%
A14English, Neo-Catalan declined71443.0%54.3%
A14English, Symmetrical, Keres defence48646.5%57.0%
A15English opening858742.1%53.4%
A15English, 1...Nf6 (Anglo-Indian defense)96838.9%55.5%
A16English opening116535.4%52.9%
A16English, Anglo-Gruenfeld defense19942.7%53.5%
A16English, Anglo-Gruenfeld defense, Korchnoi variation9036.7%58.3%
A16English, Anglo-Gruenfeld, Czech defense15232.9%63.8%
A16English, Anglo-Gruenfeld, Smyslov defense14432.6%55.9%
A17English opening20738.2%53.9%
A17English, Nimzo-English opening147438.9%53.7%
A17English, Queens Indian formation19836.9%59.8%
A17English, Queens Indian, Romanishin variation5026.0%59.0%
A18English, Mikenas-Carls variation8145.7%58.6%
A18English, Mikenas-Carls, Flohr variation26638.7%59.2%
A18English, Mikenas-Carls, Kevitz variation2025.0%47.5%
A19English, Mikenas-Carls, Sicilian variation29443.5%55.4%
A20English opening469538.1%54.3%
A20English, Nimzovich variation5633.9%56.3%
A20English, Nimzovich, Flohr variation13138.9%41.6%
A21English opening125233.1%54.4%
A21English, Keres variation1030.0%45.0%
A21English, Kramnik-Shirov counterattack153940.9%52.2%
A21English, Smyslov defence3630.6%59.7%
A21English, Troeger defence11629.3%53.4%
A22English opening65935.5%50.8%
A22English, Bellon gambit1136.4%63.6%
A22English, Bremen, Smyslov system133538.7%49.3%
A22English, Bremen, reverse dragon60340.1%50.2%
A22English, Carls' Bremen system32739.8%54.1%
A23English, Bremen system, Keres variation49340.6%48.5%
A24English, Bremen system with ...g614040.0%48.6%
A25English, Sicilian reversed63233.2%51.7%
A25English, closed system68835.2%53.9%
A25English, closed system (without ...d6)11628.4%55.6%
A25English, closed, 5.Rb137740.1%51.9%
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 system27038.5%52.2%
A26English, closed system26437.5%51.7%
A27English, three knights system42934.0%53.1%
A28English, Bradley Beach variation5020.0%38.0%
A28English, Nenarokov variation12240.2%52.0%
A28English, four knights system32843.9%50.9%
A28English, four knights, 4.e388136.4%51.7%
A28English, four knights, Capablanca variation34937.5%55.7%
A28English, four knights, Marini variation68538.7%50.9%
A28English, four knights, Nimzovich variation42434.9%54.0%
A28English, four knights, Romanishin variation39650.5%53.0%
A28English, four knights, Stean variation8342.2%59.6%
A29English, four knights, kingside fianchetto555040.8%51.9%
A30English, symmetrical variation265239.7%54.6%
A30English, symmetrical, hedgehog system240646.5%55.7%
A30English, symmetrical, hedgehog, flexible formation17142.7%55.3%
A31English, symmetrical, Benoni formation77740.7%56.4%
A32English, symmetrical variation29741.4%58.1%
A33English, symmetrical variation129747.9%54.7%
A33English, symmetrical, Geller variation54937.7%53.8%
A34English, symmetrical variation82338.3%53.5%
A34English, symmetrical, Rubinstein system32739.8%52.6%
A34English, symmetrical, three knights system98540.8%55.3%
A35English, symmetrical variation19233.3%52.6%
A35English, symmetrical, four knights system177142.9%53.6%
A36English, symmetrical variation10636.8%56.1%
A36English, symmetrical, Botvinnik system14533.1%51.7%
A36English, symmetrical, Botvinnik system reversed5534.5%59.1%
A36English, ultra-symmetrical variation106838.2%53.3%
A37English, symmetrical variation84340.7%50.1%
A37English, symmetrical, Botvinnik system reversed61537.9%50.8%
A38English, symmetrical variation48345.3%55.6%
A38English, symmetrical, main line with b31100.0%50.0%
A38English, symmetrical, main line with d311450.0%52.2%
A39English, symmetrical, main line with d440241.3%57.5%
A40Beefeater defence2920.7%69.0%
A40Modern defence72737.4%58.6%
A40Polish defence4843.8%51.0%
A40Queen's pawn187137.1%55.3%
A40Queen's pawn, Charlick (Englund) gambit2045.0%62.5%
A40Queen's pawn, English defence14741.5%63.6%
A40Queen's pawn, Franco-Indian (Keres) defence73237.8%54.4%
A40Queen's pawn, Keres defence127142.8%57.2%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence14331.5%59.8%
A41Modern defence5831.0%55.2%
A41Old Indian defence57930.2%54.8%
A41Old Indian, Tartakower (Wade) variation73034.7%60.9%
A41Queen's Pawn169035.5%54.2%
A41Robatsch defence, Rossolimo variation10335.9%50.0%
A42Modern defence, Averbakh system31431.2%58.6%
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 defence117035.3%59.2%
A43Old Benoni, Franco-Benoni defence6134.4%59.8%
A43Old Benoni, Mujannah formation2941.4%69.0%
A43Old Benoni, Schmid's system2317.4%56.5%
A44Old Benoni defence1643.8%65.6%
A44Semi-Benoni (`blockade variation')8230.5%61.6%
A45Blackmar-Diemer gambit14829.7%46.6%
A45Canard opening1136.4%27.3%
A45Paleface attack3234.4%45.3%
A45Queen's pawn game167238.5%54.4%
A45Queen's pawn, Bronstein gambit1030.0%55.0%
A45Trompovsky attack (Ruth, Opovcensky opening)302935.1%52.1%
A46Queen's pawn game240839.8%54.9%
A46Queen's pawn, Torre attack107036.9%51.4%
A46Queen's pawn, Torre attack, Wagner gambit333.3%83.3%
A46Queen's pawn, Yusupov-Rubinstein system63840.8%52.0%
A47Queen's Indian defence41839.2%51.9%
A47Queen's Indian, Marienbad system6735.8%53.7%
A47Queen's Indian, Marienbad system, Berg variation1250.0%58.3%
A48King's Indian, East Indian defence71638.7%51.0%
A48King's Indian, London system87139.6%53.1%
A48King's Indian, Torre attack133939.5%49.6%
A49King's Indian, fianchetto without c489940.2%56.5%
A50Kevitz-Trajkovich defence26537.7%57.0%
A50Queen's Indian accelerated11643.1%59.5%
A50Queen's pawn game46837.8%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 variation5225.0%62.5%
A52Budapest, Rubinstein variation31938.9%60.2%
A53Old Indian defence81239.8%55.6%
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.Nf317136.8%57.6%
A55Old Indian, main line37639.6%58.6%
A56Benoni defence54133.3%59.5%
A56Benoni defence, Hromodka system35024.0%65.1%
A56Czech Benoni defence25728.0%68.5%
A56Czech Benoni, King's Indian system3411.8%64.7%
A56Vulture defence1100.0%50.0%
A57Benko gambit53937.7%57.1%
A57Benko gambit half accepted68439.9%56.7%
A57Benko gambit, Zaitsev system6439.1%44.5%
A58Benko gambit accepted59933.1%58.8%
A58Benko gambit, Nd2 variation837.5%56.3%
A58Benko gambit, fianchetto variation13544.4%61.5%
A59Benko gambit3240.6%60.9%
A59Benko gambit, 7.e4633.3%50.0%
A59Benko gambit, Ne2 variation30.0%33.3%
A59Benko gambit, main line11540.9%66.5%
A60Benoni defence10123.8%64.4%
A61Benoni defence45131.0%62.7%
A61Benoni, Nimzovich (knight's tour) variation33327.9%59.0%
A61Benoni, Uhlmann variation19222.4%39.3%
A61Benoni, fianchetto variation1414.3%78.6%
A62Benoni, fianchetto variation62736.2%56.4%
A63Benoni, fianchetto, 9...Nbd76434.4%64.1%
A64Benoni, fianchetto, 11...Re89543.2%39.5%
A65Benoni, 6.e425925.9%55.4%
A66Benoni, Mikenas variation1723.5%47.1%
A66Benoni, pawn storm variation540.0%60.0%
A67Benoni, Taimanov variation18122.7%64.4%
A68Benoni, four pawns attack7034.3%55.7%
A69Benoni, four pawns attack, main line7238.9%44.4%
A70Benoni, classical with e4 and Nf349738.0%59.3%
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...Re87938.0%65.8%
A77Benoni, classical, 9...Re8, 10.Nd211526.1%67.8%
A78Benoni, classical with ...Re8 and ...Na63333.3%59.1%
A79Benoni, classical, 11.f34332.6%53.5%
A80Dutch155035.2%54.0%
A80Dutch, 2.Bg5 variation64432.0%54.0%
A80Dutch, Korchnoi attack837.5%43.8%
A80Dutch, Krejcik gambit26734.1%54.5%
A80Dutch, Manhattan (Alapin, Ulvestad) variation1741.2%61.8%
A81Dutch defence261738.3%56.8%
A81Dutch defence, Blackburne variation3327.3%50.0%
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 defence48039.4%55.7%
A84Dutch defence, Rubinstein variation22532.4%58.0%
A84Dutch, Staunton gambit deferred955.6%27.8%
A85Dutch with c4 & Nc354734.4%54.7%
A86Dutch with c4 & g36939.1%64.5%
A86Dutch, Hort-Antoshin system2100.0%50.0%
A86Dutch, Leningrad variation11237.5%54.5%
A87Dutch, Leningrad, main variation28440.1%54.2%
A88Dutch, Leningrad, main variation with c673738.3%57.0%
A89Dutch, Leningrad, main variation with Nc630936.2%63.4%
A90Dutch defence86538.8%61.0%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation14339.2%60.1%
A90Dutch-Indian, Alekhine variation3735.1%55.4%
A91Dutch defence7432.4%51.4%
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 variation6729.9%56.7%
A94Dutch, stonewall with Ba32958.6%60.3%
A95Dutch, stonewall with Nc320129.4%58.5%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
A96Dutch, classical variation16034.4%62.2%
A97Dutch, Ilyin-Genevsky variation1618.8%59.4%
A97Dutch, Ilyin-Genevsky, Winter variation5540.0%63.6%
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 defence38332.6%61.7%
B00KP, Nimzovich defence, Bogolyubov variation8030.0%57.5%
B00King's pawn opening109136.7%57.1%
B00Lemming defence837.5%56.3%
B00Owen defence25733.1%61.7%
B00Reversed Grob (Borg/Basman defence/macho Grob)1631.3%84.4%
B00St. George (Baker) defence3638.9%58.3%
B01Scandinavian (centre counter) defence216442.4%56.8%
B01Scandinavian defence68840.3%57.5%
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 variation50644.3%59.7%
B01Scandinavian, Mieses-Kotrvc gambit862.5%43.8%
B01Scandinavian, Pytel-Wade variation216445.1%58.0%
B01Scandinavian, Richter variation250.0%75.0%
B02Alekhine's defence47235.2%55.1%
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 attack23139.0%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) attack24245.5%53.7%
B03Alekhine's defence6728.4%61.9%
B03Alekhine's defence, Balogh variation825.0%75.0%
B03Alekhine's defence, exchange variation50739.1%59.0%
B03Alekhine's defence, exchange, Karpov variation650.0%58.3%
B03Alekhine's defence, four pawns attack19230.7%65.9%
B03Alekhine's defence, four pawns attack, 6...Nc61225.0%45.8%
B03Alekhine's defence, four pawns attack, 7.Be39535.8%67.4%
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 variation8931.5%57.3%
B04Alekhine's defence, modern variation21233.0%61.3%
B04Alekhine's defence, modern, Keres variation4235.7%72.6%
B04Alekhine's defence, modern, Larsen variation68841.7%61.1%
B04Alekhine's defence, modern, Schmid variation13336.1%61.7%
B04Alekhine's defence, modern, fianchetto variation56933.6%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 variation7835.9%64.1%
B05Alekhine's defence, modern, Panov variation911.1%50.0%
B05Alekhine's defence, modern, Vitolins attack20.0%50.0%
B06Robatsch (modern) defence407336.5%56.6%
B06Robatsch defence54936.6%58.4%
B06Robatsch defence, Gurgenidze variation4242.9%54.8%
B06Robatsch defence, Pseudo-Austrian attack39033.1%56.5%
B06Robatsch defence, Two knights variation29433.3%61.9%
B06Robatsch defence, Two knights, Suttles variation93538.7%58.8%
B06Robatsch defence, three pawns attack13531.1%63.7%
B07Pirc defence129437.1%57.6%
B07Pirc, 150 attack18639.8%60.8%
B07Pirc, Byrne variation29731.3%57.7%
B07Pirc, Holmov system1844.4%61.1%
B07Pirc, Sveshnikov system25433.9%52.0%
B07Pirc, Ufimtsev-Pytel variation30738.4%59.9%
B07Pirc, bayonet (Mariotti) attack2755.6%57.4%
B07Robatsch defence, Geller's system52336.7%57.6%
B08Pirc, classical (two knights) system39936.6%56.9%
B08Pirc, classical system, 5.Be2200138.8%56.9%
B08Pirc, classical, h3 system34638.4%59.1%
B09Pirc, Austrian attack15740.8%61.1%
B09Pirc, Austrian attack, 6.Bd3100338.5%60.2%
B09Pirc, Austrian attack, 6.Be324633.3%59.3%
B09Pirc, Austrian attack, 6.e57943.0%55.7%
B09Pirc, Austrian attack, Ljubojevic variation1442.9%50.0%
B09Pirc, Austrian attack, dragon formation71638.8%58.7%
B10Caro-Kann defence177135.7%53.2%
B10Caro-Kann, Goldman (Spielmann) variation4544.4%46.7%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B10Caro-Kann, Two knights variation25736.2%60.1%
B10Caro-Kann, anti-Caro-Kann defence48533.2%59.9%
B10Caro-Kann, anti-anti-Caro-Kann defence116848.2%51.9%
B10Caro-Kann, closed (Breyer) variation51639.1%52.7%
B11Caro-Kann, Two knights, 3...Bg464939.3%55.2%
B12Caro-Kann defence18036.1%51.9%
B12Caro-Kann, 3.Nd213743.1%58.0%
B12Caro-Kann, Edinburgh variation2138.1%52.4%
B12Caro-Kann, Tartakower (fantasy) variation45936.8%54.6%
B12Caro-Kann, advance variation840437.7%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 attack85847.6%52.7%
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 variation7648.7%57.2%
B13Caro-Kann, exchange variation68340.1%51.8%
B13Caro-Kann, exchange, Rubinstein variation11734.2%52.1%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6158845.5%55.7%
B14Caro-Kann, Panov-Botvinnik attack, 5...g626750.2%52.8%
B15Caro-Kann defence20632.5%51.2%
B15Caro-Kann, Alekhine gambit2133.3%50.0%
B15Caro-Kann, Forgacs variation20841.3%55.3%
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) variation27041.9%55.7%
B16Caro-Kann, Bronstein-Larsen variation42130.9%62.0%
B17Caro-Kann, Steinitz variation335742.6%53.7%
B18Caro-Kann, classical variation122744.3%54.3%
B18Caro-Kann, classical, 6.h442738.2%54.7%
B18Caro-Kann, classical, Flohr variation6454.7%49.2%
B18Caro-Kann, classical, Maroczy attack1020.0%40.0%
B19Caro-Kann, classical, 7...Nd735351.6%53.3%
B19Caro-Kann, classical, Spassky variation248038.7%56.5%
B20Sicilian defence173435.0%50.6%
B20Sicilian, Keres variation (2.Ne2)51340.5%52.4%
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 attack138235.5%52.2%
B21Sicilian, Smith-Morra gambit55741.1%46.6%
B22Sicilian, 2.c3, Heidenfeld variation5525.5%45.5%
B22Sicilian, Alapin's variation (2.c3)515443.3%54.6%
B23Sicilian, Grand Prix attack58435.4%49.7%
B23Sicilian, Grand Prix attack, Schofman variation14839.9%53.0%
B23Sicilian, chameleon variation45734.4%57.9%
B23Sicilian, closed241938.4%51.7%
B23Sicilian, closed, 2...Nc6137741.0%52.0%
B23Sicilian, closed, Korchnoi variation10753.3%51.9%
B24Sicilian, closed36636.6%48.9%
B24Sicilian, closed, Smyslov variation2133.3%54.8%
B25Sicilian, closed19735.5%49.2%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)3125.8%48.4%
B25Sicilian, closed, 6.f436839.1%50.5%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)2646.2%53.8%
B26Sicilian, closed, 6.Be352433.2%49.2%
B27Sicilian defence1631.3%53.1%
B27Sicilian, Hungarian variation318340.9%57.8%
B27Sicilian, Katalimov variation12045.8%62.9%
B27Sicilian, Quinteros variation3537.1%64.3%
B28Sicilian, O'Kelly variation25537.6%55.3%
B29Sicilian, Nimzovich-Rubinstein variation49140.5%60.8%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit3056.7%45.0%
B30Sicilian defence206340.1%54.5%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)352637.2%56.1%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)221641.3%55.9%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation1560.0%50.0%
B32Sicilian defence69038.1%56.4%
B32Sicilian, Flohr variation17933.0%60.6%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation97239.4%56.8%
B32Sicilian, Labourdonnais-Loewenthal variation18842.0%60.4%
B32Sicilian, Nimzovich variation2339.1%54.3%
B33Sicilian defence38034.2%53.9%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation79334.2%55.7%
B33Sicilian, Pelikan, Bird variation21838.5%64.2%
B33Sicilian, Pelikan, Chelyabinsk variation192435.3%57.1%
B33Sicilian, Sveshnikov variation123538.4%51.0%
B34Sicilian, accelerated fianchetto, exchange variation1747.1%70.6%
B34Sicilian, accelerated fianchetto, modern variation28235.8%52.3%
B35Sicilian, accelerated fianchetto, modern variation with Bc4171343.3%52.1%
B36Sicilian, accelerated fianchetto, Gurgenidze variation21842.7%60.3%
B36Sicilian, accelerated fianchetto, Maroczy bind82344.1%58.1%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg711048.2%55.0%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3103344.2%57.3%
B39Sicilian, accelerated fianchetto, Breyer variation57540.3%58.1%
B40Sicilian defence398638.7%54.5%
B40Sicilian, Anderssen variation61439.9%57.9%
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)39336.1%57.5%
B41Sicilian, Kan, Maroczy bind - Bronstein variation1936.8%28.9%
B42Sicilian, Kan, 5.Bd3149836.8%58.0%
B42Sicilian, Kan, Gipslis variation7839.7%63.5%
B42Sicilian, Kan, Polugaievsky variation110735.9%54.2%
B42Sicilian, Kan, Swiss cheese variation23535.3%61.9%
B43Sicilian, Kan, 5.Nc3232138.4%56.5%
B44Sicilian defence29443.2%52.6%
B44Sicilian, Szen (`anti-Taimanov') variation70538.7%54.0%
B44Sicilian, Szen variation, Dely-Kasparov gambit1758.8%58.8%
B44Sicilian, Szen, hedgehog variation22139.8%50.7%
B45Sicilian, Taimanov variation166138.1%57.0%
B45Sicilian, Taimanov, American attack1145.5%40.9%
B46Sicilian, Taimanov variation286338.1%54.9%
B47Sicilian, Taimanov (Bastrikov) variation345941.0%54.1%
B48Sicilian, Taimanov variation282637.2%55.7%
B49Sicilian, Taimanov variation56544.6%58.6%
B50Sicilian286340.4%52.6%
B50Sicilian, wing gambit deferred2123.8%35.7%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack131739.0%55.1%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7142742.6%49.5%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit18939.7%57.4%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation66444.3%55.7%
B53Sicilian, Chekhover variation93642.0%49.0%
B53Sicilian, Chekhover, Zaitsev variation4221.4%58.3%
B54Sicilian53635.8%55.8%
B54Sicilian, Prins (Moscow) variation32836.9%55.0%
B55Sicilian, Prins variation, Venice attack2850.0%50.0%
B56Sicilian131339.1%52.9%
B56Sicilian, Venice attack5137.3%63.7%
B57Sicilian, Magnus Smith trap1050.0%35.0%
B57Sicilian, Sozin, Benko variation122938.8%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-Rauzer48234.0%57.3%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2552.0%58.0%
B60Sicilian, Richter-Rauzer, Larsen variation11331.9%62.8%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd231936.1%60.3%
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...Be7102137.0%56.0%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f423938.1%53.3%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd448340.0%56.0%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6546533.6%51.5%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7253632.9%55.7%
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 variation62341.4%51.7%
B71Sicilian, dragon, Levenfish variation2138.1%52.4%
B71Sicilian, dragon, Levenfish; Flohr variation1100.0%50.0%
B72Sicilian, dragon, 6.Be37334.2%54.1%
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.Nb332851.5%47.1%
B74Sicilian, dragon, classical, Alekhine variation2147.6%66.7%
B74Sicilian, dragon, classical, Reti-Tartakower variation7349.3%56.2%
B74Sicilian, dragon, classical, Spielmann variation837.5%56.3%
B75Sicilian, dragon, Yugoslav attack22531.1%56.4%
B76Sicilian, dragon, Yugoslav attack, 7...O-O27934.8%51.4%
B76Sicilian, dragon, Yugoslav attack, Rauser variation84532.8%65.0%
B77Sicilian, dragon, Yugoslav attack, 9...Bd717941.9%56.1%
B77Sicilian, dragon, Yugoslav attack, 9.Bc49931.3%50.0%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O25627.3%54.7%
B79Sicilian, dragon, Yugoslav attack, 12.h41030.0%65.0%
B80Sicilian, Scheveningen variation111130.7%54.5%
B80Sicilian, Scheveningen, English variation13333.1%52.6%
B80Sicilian, Scheveningen, Vitolins variation4746.8%51.1%
B80Sicilian, Scheveningen, fianchetto variation16533.9%51.5%
B81Sicilian, Scheveningen, Keres attack208134.0%59.6%
B82Sicilian, Scheveningen, 6.f440831.4%57.6%
B82Sicilian, Scheveningen, Tal variation8936.0%59.6%
B83Sicilian, Scheveningen, 6.Be251539.8%52.7%
B83Sicilian, modern Scheveningen39542.5%47.6%
B83Sicilian, modern Scheveningen, main line47544.6%54.1%
B83Sicilian, modern Scheveningen, main line with Nb38435.7%58.3%
B84Sicilian, Scheveningen (Paulsen), classical variation340638.6%51.8%
B84Sicilian, Scheveningen, classical, Nd7 system5532.7%49.1%
B85Sicilian, Scheveningen, classical13040.8%51.9%
B85Sicilian, Scheveningen, classical main line33347.1%55.4%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
B85Sicilian, Scheveningen, classical, Maroczy system2437.5%52.1%
B86Sicilian, Sozin attack14042.1%54.6%
B87Sicilian, Sozin with ...a6 and ...b571336.5%50.9%
B88Sicilian, Sozin, Fischer variation1346.2%53.8%
B88Sicilian, Sozin, Leonhardt variation45541.1%54.4%
B89Sicilian, Sozin, 7.Be391436.4%50.1%
B89Sicilian, Velimirovic attack68333.5%51.0%
B90Sicilian, Najdorf226636.1%53.7%
B90Sicilian, Najdorf, Adams attack84036.7%51.8%
B90Sicilian, Najdorf, Byrne (English) attack1728134.8%53.2%
B90Sicilian, Najdorf, Lipnitzky attack82435.2%49.2%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation56437.4%53.3%
B92Sicilian, Najdorf, Opovcensky variation456840.1%53.2%
B93Sicilian, Najdorf, 6.f4147040.2%50.5%
B94Sicilian, Najdorf, 6.Bg561735.2%54.5%
B95Sicilian, Najdorf, 6...e687337.5%49.4%
B96Sicilian, Najdorf, 7.f4103734.4%51.4%
B96Sicilian, Najdorf, Polugayevsky variation9137.4%53.8%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3122.6%56.5%
B97Sicilian, Najdorf, 7...Qb6133332.7%46.4%
B97Sicilian, Najdorf, Poisoned pawn variation103444.7%49.7%
B98Sicilian, Najdorf variation31229.5%57.4%
B98Sicilian, Najdorf, 7...Be711833.9%53.4%
B98Sicilian, Najdorf, Browne variation4228.6%61.9%
B98Sicilian, Najdorf, Goteborg (Argentine) variation1838.9%47.2%
B99Sicilian, Najdorf, 7...Be7 main line53428.5%53.6%
C00French defence44433.8%57.2%
C00French defence, Steiner variation64843.5%51.7%
C00French, Alapin variation475.0%62.5%
C00French, Chigorin variation65231.3%51.1%
C00French, King's Indian attack184037.5%50.6%
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 variation18434.8%50.5%
C00French, Wing gambit2450.0%54.2%
C00Lengfellner system520.0%90.0%
C00St. George defence7847.4%64.7%
C01French, exchange variation115743.7%53.9%
C01French, exchange, Bogolyubov variation333.3%50.0%
C01French, exchange, Svenonius variation2540.0%48.0%
C02French, advance variation99132.4%55.7%
C02French, advance, Euwe variation112035.8%53.8%
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 attack157332.9%54.9%
C02French, advance, Steinitz variation29034.1%52.2%
C02French, advance, Wade variation29039.3%57.2%
C03French, Tarrasch167144.0%56.8%
C03French, Tarrasch, Guimard variation5425.9%64.8%
C04French, Tarrasch, Guimard main line28329.7%59.0%
C05French, Tarrasch, Botvinnik variation3933.3%62.8%
C05French, Tarrasch, closed variation85231.5%60.0%
C06French, Tarrasch, Leningrad variation1717.6%85.3%
C06French, Tarrasch, closed variation, main line95337.8%59.3%
C07French, Tarrasch, Eliskases variation10347.6%52.9%
C07French, Tarrasch, open variation321947.6%53.4%
C08French, Tarrasch, open, 4.ed ed114349.6%54.5%
C09French, Tarrasch, open variation, main line97649.0%56.9%
C10French, Fort Knox variation55139.9%56.8%
C10French, Frere (Becker) variation1533.3%63.3%
C10French, Marshall variation250.0%25.0%
C10French, Paulsen variation52133.0%57.6%
C10French, Rubinstein variation190349.0%55.3%
C10French, Rubinstein, Capablanca line771.4%50.0%
C11French defence14540.7%54.1%
C11French, Burn variation448844.1%52.9%
C11French, Henneberger variation1338.5%50.0%
C11French, Steinitz variation83539.2%54.4%
C11French, Steinitz, Boleslavsky variation288034.9%57.3%
C11French, Steinitz, Bradford attack1100.0%50.0%
C11French, Steinitz, Gledhill attack9430.9%58.0%
C11French, Swiss variation4247.6%57.1%
C12French, MacCutcheon variation9443.6%50.5%
C12French, MacCutcheon, Bernstein variation1136.4%54.5%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C12French, MacCutcheon, Chigorin variation4744.7%50.0%
C12French, MacCutcheon, Dr. Olland (Dutch) variation4425.0%67.0%
C12French, MacCutcheon, Duras variation425.0%62.5%
C12French, MacCutcheon, Grigoriev variation1741.2%50.0%
C12French, MacCutcheon, Janowski variation11636.2%56.9%
C12French, MacCutcheon, Lasker variation19928.1%58.8%
C12French, MacCutcheon, Lasker variation, 8...g633635.4%58.8%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
C12French, MacCutcheon, advance variation1428.6%21.4%
C13French, Albin-Alekhine-Chatard attack19630.1%54.3%
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 variation5543.6%69.1%
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 variation8246.3%53.7%
C14French, classical, Pollock variation714.3%35.7%
C14French, classical, Rubinstein variation2540.0%52.0%
C14French, classical, Stahlberg variation475.0%62.5%
C14French, classical, Steinitz variation61934.7%57.8%
C14French, classical, Tarrasch variation70.0%57.1%
C15French, Winawer (Nimzovich) variation60241.7%55.4%
C15French, Winawer, Alekhine (Maroczy) gambit13935.3%55.8%
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 variation63134.1%57.9%
C17French, Winawer, advance variation5040.0%58.0%
C17French, Winawer, advance, 5.a331729.0%63.4%
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 variation35925.9%63.9%
C18French, Winawer, classical variation24932.5%57.6%
C19French, Winawer, advance, 6...Ne724134.0%56.4%
C19French, Winawer, advance, Smyslov variation14127.7%62.1%
C19French, Winawer, advance, poisoned pawn variation228933.3%60.4%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation52029.0%62.6%
C19French, Winawer, advance, positional main line93529.8%57.2%
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 variation34837.9%55.2%
C22Centre game, Charousek variation450.0%50.0%
C22Centre game, Hall variation333.3%50.0%
C22Centre game, Paulsen attack16738.3%50.9%
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-attack12755.9%48.4%
C23Bishop's opening, Philidor variation944.4%55.6%
C24Bishop's opening, Berlin defence81341.8%54.4%
C24Bishop's opening, Ponziani gambit250.0%25.0%
C24Bishop's opening, Urusov gambit2917.2%36.2%
C25Vienna gambit2725.9%53.7%
C25Vienna game23733.8%60.8%
C25Vienna game, Max Lange defence2142.9%50.0%
C25Vienna, Paulsen variation6434.4%57.8%
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 variation32840.2%53.4%
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 game30540.3%53.3%
C29Vienna gambit14936.9%46.0%
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.de633.3%33.3%
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 gambit3132.3%48.4%
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 variation7440.5%47.3%
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 defence2740.7%46.3%
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 defence4139.0%43.9%
C35KGA, Cunningham, Euwe defence1631.3%59.4%
C36KGA, Abbazia defence (classical defence, modern defence[!])3336.4%69.7%
C36KGA, Abbazia defence, modern variation18040.0%44.4%
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 defence5137.3%40.2%
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) defence3847.4%36.8%
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-gambit7031.4%64.3%
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 defence18636.6%59.7%
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 variation80038.8%56.0%
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 variation3447.1%35.3%
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 variation59134.9%57.9%
C42Petrov three knights game21437.4%57.9%
C42Petrov's defence23244.4%51.5%
C42Petrov, Cochrane gambit5520.0%30.0%
C42Petrov, Cozio (Lasker) attack47450.0%52.8%
C42Petrov, Damiano variation2236.4%50.0%
C42Petrov, French attack333.3%83.3%
C42Petrov, Italian variation6327.0%50.0%
C42Petrov, Kaufmann attack15850.0%48.4%
C42Petrov, Nimzovich attack97445.3%54.6%
C42Petrov, Paulsen attack12340.7%50.4%
C42Petrov, classical attack64246.3%56.3%
C42Petrov, classical attack, Berger variation966.7%55.6%
C42Petrov, classical attack, Chigorin variation52540.6%56.7%
C42Petrov, classical attack, Jaenisch variation153945.8%58.1%
C42Petrov, classical attack, Krause variation1100.0%50.0%
C42Petrov, classical attack, Marshall variation84742.5%56.4%
C42Petrov, classical attack, Mason variation10442.3%58.7%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C42Petrov, classical attack, close variation12145.5%59.9%
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 variation197844.5%53.6%
C43Petrov, modern attack, Trifunovic variation5147.1%49.0%
C43Petrov, modern attack, main line18445.7%58.2%
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 variation19440.7%50.3%
C44Ponziani, Fraser defence4837.5%66.7%
C44Ponziani, Jaenisch counter-attack193346.7%53.1%
C44Ponziani, Leonhardt variation8137.0%46.9%
C44Ponziani, Reti variation633.3%50.0%
C44Ponziani, Romanishin variation1631.3%46.9%
C44Ponziani, Steinitz variation42541.6%45.1%
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 game208642.4%53.4%
C45Scotch, Blackburne attack1435.7%53.6%
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 variation118939.8%54.2%
C45Scotch, Paulsen attack10.0%100.0%
C45Scotch, Potter variation43240.0%51.5%
C45Scotch, Pulling counter-attack20.0%50.0%
C45Scotch, Romanishin variation5149.0%61.8%
C45Scotch, Schmidt variation54751.6%47.3%
C45Scotch, Steinitz variation3834.2%53.9%
C45Scotch, Tartakower variation1540.0%46.7%
C46Four knights game53942.5%50.4%
C46Four knights, Gunsberg variation5054.0%51.0%
C46Four knights, Italian variation15242.1%48.0%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C46Three knights game10238.2%52.5%
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...exd444250.0%54.4%
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 variation1050.0%55.0%
C48Four knights, Rubinstein counter-gambit89438.5%53.1%
C48Four knights, Rubinstein counter-gambit, 5.Be22100.0%50.0%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1127.3%40.9%
C48Four knights, Rubinstein counter-gambit, Henneberger variation5341.5%49.1%
C48Four knights, Rubinstein counter-gambit, exchange variation12767.7%52.8%
C48Four knights, Spanish variation19351.8%57.5%
C48Four knights, Spanish, classical defence14441.0%50.3%
C48Four knights, Spielmann variation10.0%0.0%
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 unpin29737.0%51.5%
C49Four knights, symmetrical, Pillsbury variation3661.1%44.4%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C50Giuoco Pianissimo130438.2%52.9%
C50Giuoco Pianissimo, Canal variation17243.6%52.6%
C50Giuoco Pianissimo, Italian four knights variation34438.7%51.3%
C50Giuoco Piano27943.4%53.9%
C50Giuoco Piano, four knights variation5236.5%51.0%
C50Hungarian defence14839.2%49.3%
C50King's pawn game20635.9%59.2%
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.a415339.9%45.4%
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 attack10.0%100.0%
C51Evans gambit, Goering attack10.0%100.0%
C51Evans gambit, Morphy attack1942.1%52.6%
C51Evans gambit, Paulsen variation1827.8%69.4%
C51Evans gambit, Stone-Ware variation17235.5%52.0%
C51Evans gambit, normal variation1822.2%44.4%
C52Evans gambit24838.3%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 attack6445.3%44.5%
C52Evans gambit, Waller attack60.0%100.0%
C52Evans gambit, compromised defence3823.7%69.7%
C52Evans gambit, compromised defence, Paulsen variation1625.0%62.5%
C53Giuoco Piano171337.4%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 Piano16453.0%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)109738.5%55.8%
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 attack4022.5%56.3%
C57Two knights defence, Fegatello attack, Leonhardt variation1100.0%50.0%
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 defence14436.1%55.6%
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 variation1040.0%20.0%
C59Two knights defence17234.9%48.8%
C59Two knights defence, Goering variation425.0%12.5%
C59Two knights defence, Steinitz variation29929.1%47.0%
C60Ruy Lopez (Spanish opening)2725.9%64.8%
C60Ruy Lopez, Cozio defence21043.8%51.4%
C60Ruy Lopez, Cozio defence, Paulsen variation2520.0%74.0%
C60Ruy Lopez, Lucena defence20.0%50.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence20440.2%52.9%
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 defence24243.4%57.2%
C63Ruy Lopez, Schliemann defence, Berger variation30340.9%57.1%
C64Ruy Lopez, Cordel gambit5240.4%56.7%
C64Ruy Lopez, classical (Cordel) defence16041.3%51.3%
C64Ruy Lopez, classical defence, 4.c321640.7%56.0%
C64Ruy Lopez, classical defence, Benelux variation 35238.6%55.7%
C64Ruy Lopez, classical defence, Charousek variation333.3%83.3%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C65Ruy Lopez, Berlin defence222739.6%51.1%
C65Ruy Lopez, Berlin defence, 4.O-O14141.1%59.6%
C65Ruy Lopez, Berlin defence, Beverwijk variation43935.5%57.4%
C65Ruy Lopez, Berlin defence, Duras variation1338.5%50.0%
C65Ruy Lopez, Berlin defence, Kaufmann variation2445.8%56.3%
C65Ruy Lopez, Berlin defence, Mortimer variation1464.3%32.1%
C65Ruy Lopez, Berlin defence, Nyholm attack5151.0%54.9%
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 variation4839.6%59.4%
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 variation1040.0%60.0%
C67Ruy Lopez, Berlin defence, open variation305446.3%54.2%
C67Ruy Lopez, open Berlin defence, 5...Be75832.8%57.8%
C67Ruy Lopez, open Berlin defence, Showalter variation1233.3%41.7%
C67Ruy Lopez, open Berlin defence, l'Hermet variation6955.1%49.3%
C68Ruy Lopez, exchange variation6944.9%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-O54241.9%52.7%
C69Ruy Lopez, exchange variation, Alapin gambit24539.2%49.4%
C69Ruy Lopez, exchange, Bronstein variation41331.7%49.3%
C69Ruy Lopez, exchange, Gligoric variation56740.2%57.7%
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 deferred23244.8%52.6%
C70Ruy Lopez, Graz variation6100.0%50.0%
C70Ruy Lopez, Schliemann defence deferred1729.4%73.5%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation11937.8%64.3%
C70Ruy Lopez, fianchetto defence deferred1060.0%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-O31443.6%60.4%
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) variation27734.7%51.3%
C77Ruy Lopez, Anderssen variation64541.9%51.5%
C77Ruy Lopez, Morphy defence18438.6%56.8%
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) attack27242.3%53.9%
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-O97546.2%54.5%
C78Ruy Lopez, Archangelsk (counterthrust) variation138242.2%55.3%
C78Ruy Lopez, Moeller defence49942.9%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.Bb347140.8%52.9%
C80Ruy Lopez, open, 8...Be6114437.8%42.7%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C80Ruy Lopez, open, Bernstein variation66645.9%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 attack12553.6%49.2%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation30.0%66.7%
C82Ruy Lopez, open, 9.c350.0%80.0%
C82Ruy Lopez, open, Berlin variation1637.5%68.8%
C82Ruy Lopez, open, Dilworth variation15140.4%60.6%
C82Ruy Lopez, open, Italian variation7950.6%68.4%
C82Ruy Lopez, open, Motzko attack5042.0%57.0%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation650.0%75.0%
C82Ruy Lopez, open, St. Petersburg variation17839.3%67.4%
C83Ruy Lopez, open, 9...Be7, 10.Re14233.3%54.8%
C83Ruy Lopez, open, Breslau variation250.0%75.0%
C83Ruy Lopez, open, Malkin variation666.7%66.7%
C83Ruy Lopez, open, classical defence15247.4%60.5%
C84Ruy Lopez, closed defence114740.6%51.4%
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)102939.2%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 variation23541.7%59.6%
C88Ruy Lopez, Trajkovic counter-attack54239.3%52.1%
C88Ruy Lopez, closed116540.9%52.4%
C88Ruy Lopez, closed, 7...O-O258340.0%52.4%
C88Ruy Lopez, closed, 7...d6, 8.d41833.3%16.7%
C88Ruy Lopez, closed, 8.c32334.8%60.9%
C88Ruy Lopez, closed, Balla variation3941.0%48.7%
C88Ruy Lopez, closed, anti-Marshall 8.a4137839.5%54.1%
C89Ruy Lopez, Marshall counter-attack47753.5%54.8%
C89Ruy Lopez, Marshall counter-attack, 11...c615846.8%55.1%
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)115736.2%51.6%
C90Ruy Lopez, closed, Lutikov variation3748.6%56.8%
C90Ruy Lopez, closed, Pilnik variation77635.4%52.0%
C90Ruy Lopez, closed, Suetin variation6536.9%56.9%
C91Ruy Lopez, closed, 9.d4115838.3%58.1%
C91Ruy Lopez, closed, Bogolyubov variation366542.8%53.9%
C92Ruy Lopez, closed, 9.h336142.1%51.8%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)176538.2%56.5%
C92Ruy Lopez, closed, Keres (9...a5) variation1250.0%50.0%
C92Ruy Lopez, closed, Kholmov variation11930.3%66.4%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation26242.0%64.1%
C93Ruy Lopez, closed, Smyslov defence14338.5%57.7%
C94Ruy Lopez, closed, Breyer defence3930.8%56.4%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation68038.8%56.2%
C95Ruy Lopez, closed, Breyer, Gligoric variation4645.7%53.3%
C95Ruy Lopez, closed, Breyer, Simagin variation2035.0%57.5%
C96Ruy Lopez, closed (10...c5)56831.2%64.0%
C96Ruy Lopez, closed (8...Na5)1546.7%63.3%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
C96Ruy Lopez, closed, Keres (...Nd7) defence18337.2%65.0%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C97Ruy Lopez, closed, Chigorin defence69431.6%62.5%
C98Ruy Lopez, closed, Chigorin, 12...Nc613431.3%61.2%
C99Ruy Lopez, closed, Chigorin, 12...c5d489840.3%62.7%
D00Blackmar gambit18741.2%42.0%
D00Blackmar-Diemer gambit3020.0%40.0%
D00Blackmar-Diemer, Euwe defence2623.1%42.3%
D00Levitsky attack (Queen's bishop attack)156536.8%52.2%
D00Queen's pawn game44239.6%49.0%
D00Queen's pawn, Anti-Veresov366.7%33.3%
D00Queen's pawn, Chigorin variation27135.1%52.2%
D00Queen's pawn, Mason variation69339.8%50.5%
D00Queen's pawn, Mason variation, Steinitz counter-gambit28437.0%50.5%
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 game105439.3%53.0%
D02Queen's pawn game437341.0%52.5%
D02Queen's pawn game, Chigorin variation34339.9%58.5%
D02Queen's pawn game, Krause variation33044.5%55.0%
D03Torre attack (Tartakower variation)58739.2%50.3%
D04Queen's pawn game61939.7%50.6%
D05Colle system15548.4%54.5%
D05Queen's pawn game49936.9%52.3%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation20139.8%54.2%
D05Queen's pawn game, Zukertort variation1861.1%52.8%
D06QGD, Grau (Sahovic) defence9136.3%63.2%
D06QGD, Marshall defence10040.0%60.0%
D06QGD, symmetrical (Austrian) defence3250.0%56.3%
D07QGD, Chigorin defence62835.4%57.3%
D07QGD, Chigorin defence, Janowski variation7132.4%64.1%
D08QGD, Albin counter-gambit6334.9%65.1%
D08QGD, Albin counter-gambit, Alapin variation475.0%62.5%
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.g35841.4%62.1%
D10QGD Slav defence322041.2%53.8%
D10QGD Slav defence, Alekhine variation22140.7%54.8%
D10QGD Slav defence, exchange variation129643.5%55.5%
D10QGD Slav, Winawer counter-gambit11232.1%52.7%
D11QGD Slav, 3.Nf3176839.6%55.9%
D11QGD Slav, 4.e3317642.4%55.4%
D11QGD Slav, Breyer variation9939.4%58.1%
D12QGD Slav, 4.e3 Bf5256340.0%54.2%
D12QGD Slav, Amsterdam variation2152.4%45.2%
D12QGD Slav, exchange variation8737.9%48.9%
D13QGD Slav, exchange variation61045.9%55.6%
D14QGD Slav, exchange variation, 6.Bf4 Bf559347.4%51.9%
D14QGD Slav, exchange, Trifunovic variation18947.6%52.4%
D15QGD Slav accepted7041.4%49.3%
D15QGD Slav, 4.Nc3309539.9%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 variation9829.6%55.6%
D15QGD Slav, Tolush-Geller gambit10629.2%42.0%
D16QGD Slav accepted, Alapin variation13941.0%64.4%
D16QGD Slav, Smyslov variation5635.7%60.7%
D16QGD Slav, Soultanbeieff variation32950.2%54.0%
D16QGD Slav, Steiner variation19336.3%64.8%
D17QGD Slav, Carlsbad variation45037.3%60.9%
D17QGD Slav, Czech defence32847.6%54.6%
D17QGD Slav, Krause attack60839.0%58.3%
D17QGD Slav, Wiesbaden variation58042.1%57.1%
D18QGD Slav, Dutch variation23438.9%59.6%
D18QGD Slav, Dutch, Lasker variation333.3%83.3%
D19QGD Slav, Dutch variation121338.6%57.6%
D19QGD Slav, Dutch variation, main line18041.1%57.2%
D19QGD Slav, Dutch, Saemisch variation1100.0%50.0%
D20QGA, 3.e4236140.2%56.8%
D20QGA, Linares variation7037.1%61.4%
D20Queen's gambit accepted79144.8%55.9%
D21QGA, 3.Nf321739.2%57.8%
D21QGA, Alekhine defense, Borisenko-Furman variation2128.6%52.4%
D21QGA, Ericson variation40.0%25.0%
D22QGA, Alekhine defence18639.8%57.0%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
D22QGA, Haberditz variation8854.5%52.3%
D23QGA, Mannheim variation26345.6%51.7%
D23Queen's gambit accepted2540.0%52.0%
D24QGA, 4.Nc318440.8%50.8%
D24QGA, Bogolyubov variation13346.6%56.4%
D25QGA, 4.e38135.8%54.9%
D25QGA, Flohr variation6129.5%65.6%
D25QGA, Janowsky-Larsen variation31137.9%57.2%
D25QGA, Smyslov variation7852.6%59.6%
D26QGA, 4...e624146.1%55.0%
D26QGA, classical variation58651.9%52.4%
D26QGA, classical variation, 6.O-O13247.0%56.1%
D26QGA, classical, Furman variation10.0%0.0%
D26QGA, classical, Steinitz variation3043.3%65.0%
D27QGA, classical, 6...a6335749.8%55.2%
D27QGA, classical, Geller variation7154.9%52.8%
D27QGA, classical, Rubinstein variation134446.5%55.9%
D28QGA, classical, 7...b517749.2%57.3%
D28QGA, classical, 7.Qe26251.6%61.3%
D29QGA, classical, 8...Bb729040.7%47.6%
D29QGA, classical, Smyslov variation4055.0%45.0%
D30QGD66047.4%52.2%
D30QGD Slav23546.0%55.3%
D30QGD Slav, Semmering variation1827.8%47.2%
D30QGD, Capablanca variation2630.8%57.7%
D30QGD, Capablanca-Duras variation25946.7%54.6%
D30QGD, Hastings variation37845.5%52.6%
D30QGD, Vienna variation32653.7%52.0%
D30Queen's gambit declined502644.6%55.7%
D31QGD, 3.Nc364041.1%54.6%
D31QGD, Alapin variation742.9%64.3%
D31QGD, Charousek (Petrosian) variation116244.5%52.5%
D31QGD, Janowski variation6946.4%50.7%
D31QGD, semi-Slav71138.0%54.3%
D31QGD, semi-Slav, Abrahams variation12134.7%44.6%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
D31QGD, semi-Slav, Koomen variation742.9%35.7%
D31QGD, semi-Slav, Marshall gambit52143.0%52.6%
D31QGD, semi-Slav, Noteboom variation21538.6%52.8%
D32QGD, Tarrasch defence26946.1%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 variation5530.9%55.5%
D33QGD, Tarrasch, Schlechter-Rubinstein system1338.5%50.0%
D33QGD, Tarrasch, Wagner variation922.2%66.7%
D34QGD, Tarrasch, Prague variation, 7...Be716244.4%54.9%
D34QGD, Tarrasch, Prague variation, 9.Bg551147.0%57.7%
D34QGD, Tarrasch, Prague variation, Normal position62447.1%56.6%
D34QGD, Tarrasch, Reti variation1957.9%60.5%
D35QGD, 3...Nf67640.8%49.3%
D35QGD, Harrwitz attack18851.6%55.1%
D35QGD, exchange variation34843.1%56.6%
D35QGD, exchange, Saemisch variation24046.3%54.4%
D35QGD, exchange, positional line81640.4%53.8%
D35QGD, exchange, positional line, 5...c667341.3%54.7%
D36QGD, exchange, positional line, 6.Qc219342.5%54.4%
D37QGD, 4.Nf3472746.7%52.7%
D37QGD, classical variation (5.Bf4)362944.6%55.2%
D38QGD, Ragozin variation310346.1%52.6%
D39QGD, Ragozin, Vienna variation142251.1%51.3%
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 e311448.2%53.9%
D41QGD, Semi-Tarrasch, 5.cd56047.1%58.6%
D41QGD, Semi-Tarrasch, Kmoch variation875.0%50.0%
D41QGD, Semi-Tarrasch, San Sebastian variation2334.8%78.3%
D42QGD, Semi-Tarrasch, 7.Bd322941.9%56.8%
D43QGD semi-Slav564441.1%53.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D44QGD semi-Slav, 5.Bg5 dc13040.8%48.8%
D44QGD semi-Slav, Botvinnik system (anti-Meran)6637.9%52.3%
D44QGD semi-Slav, Ekstrom variation2045.0%42.5%
D44QGD semi-Slav, anti-Meran gambit73934.9%58.3%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation14332.2%66.4%
D44QGD semi-Slav, anti-Meran, Szabo variation2420.8%35.4%
D45QGD semi-Slav, 5...Nd748138.3%53.8%
D45QGD semi-Slav, 5.e338839.9%56.8%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1323.1%42.3%
D45QGD semi-Slav, Stoltz variation1083943.5%53.4%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)153343.4%54.1%
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 defence40944.7%54.2%
D46QGD semi-Slav, Romih variation16336.8%64.4%
D47QGD semi-Slav, 7.Bc45536.4%52.7%
D47QGD semi-Slav, Meran variation114349.9%55.5%
D47QGD semi-Slav, Meran, Wade variation673439.3%53.5%
D47QGD semi-Slav, neo-Meran (Lundin variation)26448.5%54.2%
D48QGD semi-Slav, Meran205.0%37.5%
D48QGD semi-Slav, Meran, 8...a6134449.9%48.6%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
D48QGD semi-Slav, Meran, Reynolds' variation71140.4%56.5%
D48QGD semi-Slav, Meran, old main line11135.1%52.7%
D49QGD semi-Slav, Meran, Blumenfeld variation15346.4%50.7%
D49QGD semi-Slav, Meran, Rabinovich variation5825.9%45.7%
D49QGD semi-Slav, Meran, Rellstab attack1533.3%63.3%
D49QGD semi-Slav, Meran, Sozin variation15143.7%45.7%
D49QGD semi-Slav, Meran, Stahlberg variation7940.5%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%
D52QGD11942.0%57.1%
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 variation36947.4%56.2%
D52QGD, Cambridge Springs defence, Capablanca variation3534.3%60.0%
D52QGD, Cambridge Springs defence, Rubinstein variation13739.4%54.0%
D52QGD, Cambridge Springs defence, Yugoslav variation32040.0%58.4%
D53QGD, 4.Bg5 Be789645.2%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 variation34751.6%53.5%
D56QGD, Lasker defence27843.2%54.0%
D56QGD, Lasker defence, Teichmann variation8450.0%50.0%
D57QGD, Lasker defence, Bernstein variation450.0%50.0%
D57QGD, Lasker defence, main line4358.1%52.3%
D58QGD, Tartakower (Makagonov-Bondarevsky) system475846.4%51.9%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd517749.2%46.6%
D59QGD, Tartakower variation9743.3%45.4%
D60QGD, Orthodox defence8130.9%56.2%
D60QGD, Orthodox defence, Botvinnik variation6532.3%50.0%
D60QGD, Orthodox defence, Rauzer variation2437.5%64.6%
D61QGD, Orthodox defence, Rubinstein variation20343.3%50.7%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)12949.6%55.8%
D63QGD, Orthodox defence6048.3%54.2%
D63QGD, Orthodox defence, 7.Rc119936.7%57.5%
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 line22145.7%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) defence2437.5%52.1%
D70Neo-Gruenfeld defence17037.1%56.8%
D71Neo-Gruenfeld, 5.cd25745.9%56.8%
D72Neo-Gruenfeld, 5.cd, main line15532.9%60.3%
D73Neo-Gruenfeld, 5.Nf360551.2%55.4%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O19143.5%55.8%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc36946.4%60.9%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc1526.7%73.3%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb648143.5%56.9%
D77Neo-Gruenfeld, 6.O-O62846.2%54.3%
D78Neo-Gruenfeld, 6.O-O c670442.3%54.5%
D79Neo-Gruenfeld, 6.O-O, main line42648.4%54.0%
D80Gruenfeld defence44846.7%53.9%
D80Gruenfeld, Lundin variation10.0%0.0%
D80Gruenfeld, Stockholm variation59543.4%54.1%
D81Gruenfeld, Russian variation21341.8%62.7%
D82Gruenfeld, 4.Bf446945.2%53.3%
D83Gruenfeld, Gruenfeld gambit1435.7%60.7%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1573.3%63.3%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation17146.2%55.8%
D84Gruenfeld, Gruenfeld gambit accepted4348.8%54.7%
D85Gruenfeld, exchange variation215747.0%56.2%
D85Gruenfeld, modern exchange variation284646.0%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 variation90446.3%55.1%
D87Gruenfeld, exchange, Seville variation7553.3%62.7%
D87Gruenfeld, exchange, Spassky variation44841.1%54.7%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd18542.2%60.5%
D89Gruenfeld, Spassky variation, main line, 13.Bd36939.1%48.6%
D89Gruenfeld, exchange, Sokolsky variation757.1%28.6%
D90Gruenfeld, Flohr variation17135.1%57.3%
D90Gruenfeld, Schlechter variation1833.3%38.9%
D90Gruenfeld, Three knights variation37946.7%54.5%
D91Gruenfeld, 5.Bg582139.1%48.2%
D92Gruenfeld, 5.Bf461644.5%57.1%
D93Gruenfeld with Bf4 e323850.4%52.5%
D94Gruenfeld with e3 Bd31650.0%56.3%
D94Gruenfeld, 5.e337644.4%57.8%
D94Gruenfeld, Flohr defence1850.0%58.3%
D94Gruenfeld, Makogonov variation7349.3%47.9%
D94Gruenfeld, Opovcensky variation12840.6%53.9%
D94Gruenfeld, Smyslov defence14247.2%56.0%
D95Gruenfeld with e3 & Qb31457.1%64.3%
D95Gruenfeld, Botvinnik variation5642.9%48.2%
D96Gruenfeld, Russian variation17737.9%54.0%
D97Gruenfeld, Russian variation with e42334.8%65.2%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation138143.6%51.3%
D97Gruenfeld, Russian, Byrne (Simagin) variation10241.2%60.8%
D97Gruenfeld, Russian, Levenfish variation742.9%64.3%
D97Gruenfeld, Russian, Prins variation41142.1%57.5%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation14939.6%59.4%
D98Gruenfeld, Russian, Keres variation922.2%55.6%
D98Gruenfeld, Russian, Smyslov variation22741.4%60.4%
D99Gruenfeld defence, Smyslov, Yugoslav variation1127.3%50.0%
D99Gruenfeld defence, Smyslov, main line15439.6%58.1%
E00Catalan opening270442.5%54.9%
E00Neo-Indian (Seirawan) attack15931.4%52.8%
E00Queen's pawn game34642.2%56.4%
E01Catalan, closed36646.2%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.Nf3354643.1%53.1%
E05Catalan, open, classical line8146.9%56.8%
E06Catalan, closed, 5.Nf3265448.7%53.5%
E07Catalan, closed, 6...Nbd74938.8%45.9%
E07Catalan, closed, Botvinnik variation6240.3%41.1%
E08Catalan, closed, 7.Qc27737.7%60.4%
E08Catalan, closed, Qc2 & b317242.4%52.0%
E08Catalan, closed, Spassky gambit520.0%50.0%
E09Catalan, closed, main line19734.0%60.2%
E10Blumenfeld counter-gambit27343.6%54.4%
E10Blumenfeld counter-gambit accepted10541.0%55.7%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation14035.0%58.2%
E10Blumenfeld counter-gambit, Spielmann variation5937.3%57.6%
E10Doery defence2142.9%54.8%
E10Dzindzikhashvili defence3953.8%57.7%
E10Queen's pawn game342745.4%55.7%
E11Bogo-Indian defence124539.1%54.9%
E11Bogo-Indian defence, Gruenfeld variation163039.4%56.3%
E11Bogo-Indian defence, Monticelli trap1136.4%45.5%
E11Bogo-Indian defence, Nimzovich variation123237.5%57.8%
E12Queen's Indian defence57040.7%54.0%
E12Queen's Indian, 4.Nc3402239.6%52.9%
E12Queen's Indian, 4.Nc3, Botvinnik variation2817.9%44.6%
E12Queen's Indian, Miles variation110044.0%52.8%
E12Queen's Indian, Petrosian system554242.3%54.2%
E13Queen's Indian, 4.Nc3, main line19235.4%52.6%
E14Queen's Indian, 4.e3148039.8%53.5%
E14Queen's Indian, Averbakh variation20.0%50.0%
E15Queen's Indian, 4.g3159245.7%56.4%
E15Queen's Indian, 4.g3 Bb721539.5%53.7%
E15Queen's Indian, Buerger variation2437.5%60.4%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1294739.9%56.4%
E15Queen's Indian, Rubinstein variation10234.3%59.3%
E16Queen's Indian, Capablanca variation28640.9%56.1%
E16Queen's Indian, Riumin variation18839.9%56.1%
E16Queen's Indian, Yates variation29137.5%57.9%
E17Queen's Indian, 5.Bg2 Be72828.6%39.3%
E17Queen's Indian, Euwe variation5651.8%54.5%
E17Queen's Indian, Opovcensky variation57638.9%54.3%
E17Queen's Indian, anti-Queen's Indian system23538.7%52.6%
E17Queen's Indian, old main line, 6.O-O70241.6%58.7%
E18Queen's Indian, old main line, 7.Nc3144443.4%56.8%
E19Queen's Indian, old main line, 9.Qxc3125845.5%59.0%
E20Nimzo-Indian defence9150.5%51.6%
E20Nimzo-Indian, Kmoch variation57038.2%54.0%
E20Nimzo-Indian, Mikenas attack666.7%50.0%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system34245.9%52.5%
E21Nimzo-Indian, three knights variation197441.7%53.6%
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%
E22Nimzo-Indian, Spielmann variation9041.1%50.6%
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 variation14347.6%47.6%
E24Nimzo-Indian, Saemisch, Botvinnik variation4436.4%43.2%
E25Nimzo-Indian, Saemisch variation9341.9%52.2%
E25Nimzo-Indian, Saemisch, Keres variation24544.9%53.5%
E25Nimzo-Indian, Saemisch, Romanovsky variation6841.2%47.1%
E26Nimzo-Indian, Saemisch variation4143.9%48.8%
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 variation50735.1%47.9%
E30Nimzo-Indian, Leningrad, ...b5 gambit4729.8%46.8%
E31Nimzo-Indian, Leningrad, main line16031.9%51.6%
E32Nimzo-Indian, classical variation540842.2%53.7%
E32Nimzo-Indian, classical, Adorjan gambit9142.9%50.0%
E33Nimzo-Indian, classical, 4...Nc65851.7%56.9%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation23838.7%58.8%
E34Nimzo-Indian, classical, Noa variation67353.0%54.3%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed46643.6%50.8%
E36Nimzo-Indian, classical, Botvinnik variation1030.0%65.0%
E36Nimzo-Indian, classical, Noa variation, 5.a324245.0%52.3%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc224647.2%62.2%
E37Nimzo-Indian, classical, San Remo variation30.0%66.7%
E38Nimzo-Indian, classical, 4...c549738.4%60.9%
E39Nimzo-Indian, classical, Pirc variation82638.5%54.6%
E40Nimzo-Indian, 4.e311428.1%56.1%
E40Nimzo-Indian, 4.e3, Taimanov variation5831.0%63.8%
E41Nimzo-Indian, 4.e3 c559943.2%54.2%
E41Nimzo-Indian, e3, Huebner variation42332.9%50.2%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)48245.0%53.6%
E43Nimzo-Indian, Fischer variation51036.7%53.6%
E44Nimzo-Indian, Fischer variation, 5.Ne228135.9%55.0%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation14252.1%57.0%
E46Nimzo-Indian, 4.e3 O-O5930.5%57.6%
E46Nimzo-Indian, Reshevsky variation75943.7%51.0%
E46Nimzo-Indian, Simagin variation9938.4%49.5%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd345345.9%52.3%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d537439.0%48.9%
E49Nimzo-Indian, 4.e3, Botvinnik system16045.0%56.9%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d514740.1%50.0%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d510348.5%48.5%
E51Nimzo-Indian, 4.e3, Ragozin variation2138.1%66.7%
E52Nimzo-Indian, 4.e3, main line with ...b640939.1%52.3%
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 ...c533139.0%55.1%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc110948.3%55.9%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation1968.4%65.8%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation167047.2%55.1%
E56Nimzo-Indian, 4.e3, main line with 7...Nc629553.2%56.1%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd333.3%16.7%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3135044.1%52.8%
E59Nimzo-Indian, 4.e3, main line69243.2%53.0%
E60King's Indian defence47436.1%57.7%
E60King's Indian, 3.Nf3236239.8%57.7%
E60King's Indian, 3.g3120741.8%56.4%
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.Nc364136.0%55.9%
E61King's Indian, Smyslov system7537.3%52.0%
E62King's Indian, fianchetto variation5836.2%49.1%
E62King's Indian, fianchetto with ...Nc619534.9%53.3%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation52032.5%60.5%
E62King's Indian, fianchetto, Larsen system23941.0%61.5%
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) variation24237.6%60.5%
E63King's Indian, fianchetto, Panno variation197037.2%57.4%
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 Panno27932.3%57.0%
E67King's Indian, fianchetto with ...Nd77337.0%52.7%
E67King's Indian, fianchetto, classical variation43639.9%56.0%
E68King's Indian, fianchetto, classical variation, 8.e4112438.3%60.2%
E69King's Indian, fianchetto, classical main line41133.8%61.2%
E70King's Indian, 4.e476332.8%58.7%
E70King's Indian, Kramer system27627.5%58.7%
E70King's Indian, accelerated Averbakh system8735.6%58.0%
E71King's Indian, Makagonov system (5.h3)56734.0%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 system77831.5%54.3%
E73King's Indian, Semi-Averbakh system2040.0%55.0%
E74King's Indian, Averbakh, 6...c520731.9%56.0%
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 line12631.7%55.6%
E77King's Indian, Four pawns attack9930.3%57.6%
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 variation26532.8%57.2%
E81King's Indian, Saemisch, 5...O-O180833.5%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 formation16842.9%56.0%
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 c630828.6%53.6%
E87King's Indian, Saemisch, orthodox, 7.d523627.1%59.3%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
E88King's Indian, Saemisch, orthodox, 7.d5 c628732.8%58.2%
E89King's Indian, Saemisch, orthodox main line2433.3%62.5%
E90King's Indian, 5.Nf374833.3%57.0%
E90King's Indian, Larsen variation7839.7%60.9%
E90King's Indian, Zinnowitz variation2846.4%55.4%
E91King's Indian, 6.Be254633.2%64.4%
E91King's Indian, Kazakh variation28036.8%55.5%
E92King's Indian, Andersson variation24452.0%50.2%
E92King's Indian, Gligoric-Taimanov system132733.4%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 variation92137.0%54.1%
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)378232.7%56.3%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack114135.5%58.0%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne182126.8%60.8%
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 March 25, 2017