CCRL 40/15
Downloads and Statistics
May 8, 2021
Testing summary:
Total: 1'242'291 games
played by 2'843 programs

White wins: 425'658 (34.3%)
Black wins: 312'703 (25.2%)
Draws: 503'930 (40.6%)
White score: 54.5%

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
C20Alapin's opening6233.9%57.3%
B02Alekhine's defence81034.3%54.7%
B03Alekhine's defence19938.2%59.3%
B03Alekhine's defence, Balogh variation6139.3%57.4%
B02Alekhine's defence, Brooklyn defence2740.7%61.1%
B02Alekhine's defence, Kmoch variation1520.0%36.7%
B02Alekhine's defence, Krejcik variation2035.0%47.5%
B02Alekhine's defence, Maroczy variation16935.5%57.4%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation250.0%25.0%
B02Alekhine's defence, Saemisch attack48635.0%49.8%
B02Alekhine's defence, Scandinavian variation53037.5%55.6%
B02Alekhine's defence, Spielmann variation2429.2%47.9%
B02Alekhine's defence, Steiner variation2339.1%50.0%
B02Alekhine's defence, Two pawns' (Lasker's) attack41240.5%52.5%
B02Alekhine's defence, Two pawns' attack, Mikenas variation20.0%0.0%
B02Alekhine's defence, Welling variation1020.0%50.0%
B03Alekhine's defence, exchange variation89338.9%59.5%
B03Alekhine's defence, exchange, Karpov variation1662.5%56.3%
B03Alekhine's defence, four pawns attack30733.6%65.3%
B03Alekhine's defence, four pawns attack, 6...Nc62429.2%52.1%
B03Alekhine's defence, four pawns attack, 7.Be317633.5%70.2%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
B03Alekhine's defence, four pawns attack, Planinc variation1136.4%36.4%
B03Alekhine's defence, four pawns attack, Trifunovic variation11031.8%69.5%
B03Alekhine's defence, four pawns attack, fianchetto variation15433.8%60.4%
B04Alekhine's defence, modern variation33836.1%60.9%
B05Alekhine's defence, modern variation, 4...Bg481832.6%64.6%
B05Alekhine's defence, modern, Alekhine variation837.5%43.8%
B05Alekhine's defence, modern, Flohr variation20738.6%59.9%
B04Alekhine's defence, modern, Keres variation9339.8%67.2%
B04Alekhine's defence, modern, Larsen variation125542.8%59.2%
B05Alekhine's defence, modern, Panov variation2941.4%48.3%
B04Alekhine's defence, modern, Schmid variation18639.8%59.7%
B05Alekhine's defence, modern, Vitolins attack4045.0%55.0%
B04Alekhine's defence, modern, fianchetto variation96338.0%57.6%
A00Amar (Paris) opening1844.4%33.3%
A00Amar gambit10.0%0.0%
A00Amsterdam attack30.0%100.0%
A00Anderssen's opening51741.0%50.3%
A00Anti-Borg (Desprez) opening70.0%42.9%
B00Barnes defence1637.5%81.3%
A00Battambang opening2236.4%50.0%
A40Beefeater defence5431.5%62.0%
A57Benko gambit140535.2%56.4%
A59Benko gambit6043.3%65.0%
A58Benko gambit accepted113237.7%57.7%
A57Benko gambit half accepted129939.8%58.6%
A59Benko gambit, 7.e46331.7%61.9%
A58Benko gambit, Nd2 variation1442.9%57.1%
A59Benko gambit, Ne2 variation2339.1%50.0%
A57Benko gambit, Zaitsev system14437.5%50.7%
A58Benko gambit, fianchetto variation18845.2%59.8%
A59Benko gambit, main line18042.2%68.9%
A00Benko's opening1015740.4%52.0%
A00Benko's opening, reversed Alekhine13342.1%45.9%
A56Benoni defence109333.7%60.3%
A60Benoni defence41331.2%58.2%
A61Benoni defence66733.4%61.4%
A56Benoni defence, Hromodka system64526.7%62.3%
A65Benoni, 6.e461532.8%58.0%
A66Benoni, Mikenas variation3517.1%54.3%
A61Benoni, Nimzovich (knight's tour) variation60429.1%59.6%
A67Benoni, Taimanov variation37429.7%62.7%
A61Benoni, Uhlmann variation22722.9%41.4%
A78Benoni, classical with ...Re8 and ...Na612832.0%61.3%
A75Benoni, classical with ...a6 and 10...Bg414134.0%62.4%
A70Benoni, classical with e4 and Nf388238.1%60.2%
A70Benoni, classical without 9.O-O2213.6%52.3%
A72Benoni, classical without 9.O-O15944.7%65.7%
A79Benoni, classical, 11.f310531.4%62.4%
A71Benoni, classical, 8.Bg517135.1%56.7%
A76Benoni, classical, 9...Re823339.9%61.6%
A77Benoni, classical, 9...Re8, 10.Nd223733.8%63.7%
A74Benoni, classical, 9...a6, 10.a44032.5%63.8%
A73Benoni, classical, 9.O-O13131.3%59.2%
A61Benoni, fianchetto variation7129.6%58.5%
A62Benoni, fianchetto variation158635.8%55.8%
A64Benoni, fianchetto, 11...Re826139.8%49.8%
A63Benoni, fianchetto, 9...Nbd717436.8%64.9%
A68Benoni, four pawns attack12535.2%58.4%
A69Benoni, four pawns attack, main line15939.6%55.0%
A66Benoni, pawn storm variation650.0%58.3%
A02Bird's opening440636.6%49.4%
A03Bird's opening376235.4%47.9%
A03Bird's opening, Lasker variation14030.7%46.1%
A02Bird's opening, Swiss gambit250.0%75.0%
A03Bird's opening, Williams gambit5334.0%56.6%
A02Bird, From gambit28732.8%53.3%
A02Bird, From gambit, Lasker variation3647.2%56.9%
A02Bird, From gambit, Lipke variation10.0%0.0%
A02Bird, Hobbs gambit560.0%70.0%
C23Bishop's opening35632.9%53.5%
C24Bishop's opening, Berlin defence199541.9%52.8%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C23Bishop's opening, Classical variation11340.7%52.2%
C23Bishop's opening, Lewis gambit40.0%75.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
C23Bishop's opening, Lopez gambit20.0%0.0%
C23Bishop's opening, MacDonnell double gambit250.0%25.0%
C23Bishop's opening, Philidor counter-attack23149.8%50.0%
C23Bishop's opening, Philidor variation944.4%55.6%
C24Bishop's opening, Ponziani gambit2030.0%30.0%
C24Bishop's opening, Urusov gambit13245.5%40.2%
C24Bishop's opening, Urusov gambit, Panov variation450.0%50.0%
C23Bishop's opening, Wing gambit650.0%41.7%
D00Blackmar gambit25837.6%40.9%
A45Blackmar-Diemer gambit25727.6%52.3%
D00Blackmar-Diemer gambit6943.5%43.5%
D00Blackmar-Diemer, Euwe defence4126.8%47.6%
D00Blackmar-Diemer, Lemberg counter-gambit2020.0%60.0%
E10Blumenfeld counter-gambit42542.1%55.6%
E10Blumenfeld counter-gambit accepted17040.0%55.9%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation27836.0%56.8%
E10Blumenfeld counter-gambit, Spielmann variation18634.9%58.3%
C27Boden-Kieseritsky gambit4535.6%35.6%
C27Boden-Kieseritsky gambit, Lichtenhein defence2334.8%52.2%
E11Bogo-Indian defence234341.4%55.2%
E11Bogo-Indian defence, Gruenfeld variation300940.8%56.2%
E11Bogo-Indian defence, Monticelli trap2343.5%39.1%
E11Bogo-Indian defence, Nimzovich variation203241.7%57.5%
A52Budapest defence7331.5%54.1%
A51Budapest defence declined3145.2%61.3%
A52Budapest, Adler variation43445.4%57.5%
A52Budapest, Alekhine variation2931.0%60.3%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
A52Budapest, Alekhine, Abonyi variation8330.1%60.8%
A51Budapest, Fajarowicz variation41440.1%56.8%
A51Budapest, Fajarowicz, Steiner variation5036.0%46.0%
A52Budapest, Rubinstein variation52242.7%61.8%
A45Canard opening1729.4%38.2%
B10Caro-Kann defence328935.7%52.6%
B12Caro-Kann defence39732.5%57.3%
B15Caro-Kann defence37431.0%55.3%
B12Caro-Kann, 3.Nd226336.1%59.9%
B15Caro-Kann, Alekhine gambit4436.4%45.5%
B16Caro-Kann, Bronstein-Larsen variation64433.1%60.6%
B12Caro-Kann, Edinburgh variation7742.9%56.5%
B15Caro-Kann, Forgacs variation30245.0%56.6%
B10Caro-Kann, Goldman (Spielmann) variation15036.0%51.3%
B15Caro-Kann, Gurgenidze counter-attack850.0%62.5%
B15Caro-Kann, Gurgenidze system47237.3%58.1%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B13Caro-Kann, Panov-Botvinnik attack142948.1%52.6%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6232147.7%55.5%
B14Caro-Kann, Panov-Botvinnik attack, 5...g643952.2%52.5%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation5438.9%49.1%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack2832.1%44.6%
B13Caro-Kann, Panov-Botvinnik, Herzog defence2334.8%52.2%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation742.9%64.3%
B13Caro-Kann, Panov-Botvinnik, normal variation14847.3%55.4%
B15Caro-Kann, Rasa-Studier gambit1822.2%27.8%
B17Caro-Kann, Steinitz variation467143.7%53.5%
B15Caro-Kann, Tartakower (Nimzovich) variation58642.7%56.3%
B12Caro-Kann, Tartakower (fantasy) variation105037.6%55.7%
B10Caro-Kann, Two knights variation80538.1%57.3%
B11Caro-Kann, Two knights, 3...Bg4145140.1%55.1%
B12Caro-Kann, advance variation1446538.3%56.4%
B12Caro-Kann, advance, Short variation6729.9%61.2%
B10Caro-Kann, anti-Caro-Kann defence81331.6%60.0%
B10Caro-Kann, anti-anti-Caro-Kann defence176049.0%53.1%
B18Caro-Kann, classical variation217845.8%54.6%
B18Caro-Kann, classical, 6.h475842.6%54.6%
B19Caro-Kann, classical, 7...Nd743149.4%52.6%
B18Caro-Kann, classical, Flohr variation14852.0%55.7%
B18Caro-Kann, classical, Maroczy attack1216.7%41.7%
B19Caro-Kann, classical, Spassky variation291340.5%56.5%
B10Caro-Kann, closed (Breyer) variation147438.1%53.2%
B13Caro-Kann, exchange variation138640.6%52.4%
B13Caro-Kann, exchange, Rubinstein variation23439.3%54.7%
B12Caro-Masi defence1100.0%50.0%
B00Carr's defence450.0%50.0%
E00Catalan opening491042.4%55.1%
E01Catalan, closed96248.5%54.7%
E06Catalan, closed, 5.Nf3432950.9%53.7%
E07Catalan, closed, 6...Nbd714943.6%52.7%
E08Catalan, closed, 7.Qc215135.8%61.6%
E07Catalan, closed, Botvinnik variation15241.4%50.3%
E08Catalan, closed, Qc2 & b337841.3%52.1%
E09Catalan, closed, Sokolsky variation520.0%50.0%
E08Catalan, closed, Spassky gambit1323.1%50.0%
E08Catalan, closed, Zagoryansky variation1060.0%50.0%
E09Catalan, closed, main line33437.1%59.9%
E04Catalan, open, 5.Nf3615945.2%53.7%
E02Catalan, open, 5.Qa424346.5%58.6%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc417449.4%46.6%
E03Catalan, open, Alekhine variation5940.7%49.2%
E05Catalan, open, classical line24752.6%57.9%
C21Centre game36339.7%55.9%
C22Centre game45737.2%46.0%
C22Centre game, Berger variation44838.8%52.0%
C22Centre game, Charousek variation862.5%56.3%
C22Centre game, Hall variation2937.9%36.2%
C22Centre game, Paulsen attack44337.9%53.7%
C22Centre game, l'Hermet variation80.0%37.5%
A00Clemenz (Mead's, Basman's or de Klerk's) opening10037.0%50.5%
D05Colle system37149.1%52.3%
B00Corn stalk defence633.3%33.3%
A56Czech Benoni defence44726.8%66.0%
A56Czech Benoni, King's Indian system6520.0%62.3%
C21Danish gambit29836.9%49.3%
C21Danish gambit, Collijn defence560.0%50.0%
C21Danish gambit, Schlechter defence1723.5%47.1%
C21Danish gambit, Soerensen defence21741.5%51.2%
E10Doery defence3638.9%58.3%
C44Dresden opening1827.8%41.7%
A00Dunst (Sleipner, Heinrichsen) opening257236.3%49.8%
A00Durkin's attack1421.4%46.4%
A80Dutch364734.9%54.6%
A81Dutch defence506438.5%57.0%
A84Dutch defence87836.9%56.7%
A90Dutch defence139538.9%60.3%
A91Dutch defence24133.2%52.7%
A92Dutch defence14239.4%62.0%
A92Dutch defence, Alekhine variation6241.9%59.7%
A81Dutch defence, Blackburne variation8031.3%53.1%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation31236.9%60.7%
A84Dutch defence, Rubinstein variation51131.9%57.4%
A85Dutch with c4 & Nc3100133.2%54.9%
A86Dutch with c4 & g318736.9%60.7%
A80Dutch, 2.Bg5 variation188832.7%54.2%
A82Dutch, Balogh defence2850.0%60.7%
A86Dutch, Hort-Antoshin system1241.7%54.2%
A97Dutch, Ilyin-Genevsky variation17936.9%55.3%
A98Dutch, Ilyin-Genevsky variation with Qc222030.0%57.7%
A99Dutch, Ilyin-Genevsky variation with b339939.1%60.9%
A97Dutch, Ilyin-Genevsky, Winter variation19140.3%63.6%
A80Dutch, Korchnoi attack8026.3%48.1%
A80Dutch, Krejcik gambit32132.4%53.6%
A86Dutch, Leningrad variation33537.9%57.2%
A81Dutch, Leningrad, Basman system1250.0%58.3%
A81Dutch, Leningrad, Karlsbad variation1250.0%50.0%
A87Dutch, Leningrad, main variation60339.0%56.0%
A89Dutch, Leningrad, main variation with Nc664035.5%61.8%
A88Dutch, Leningrad, main variation with c6136340.6%58.5%
A80Dutch, Manhattan (Alapin, Ulvestad) variation5123.5%51.0%
A80Dutch, Spielmann gambit450.0%50.0%
A82Dutch, Staunton gambit22336.3%44.6%
A84Dutch, Staunton gambit deferred1145.5%31.8%
A83Dutch, Staunton gambit, Alekhine variation650.0%41.7%
A83Dutch, Staunton gambit, Chigorin variation10731.8%52.3%
A83Dutch, Staunton gambit, Lasker variation3336.4%57.6%
A83Dutch, Staunton gambit, Nimzovich variation450.0%25.0%
A83Dutch, Staunton gambit, Staunton's line29239.4%50.2%
A82Dutch, Staunton gambit, Tartakower variation1827.8%58.3%
A80Dutch, Von Pretzel gambit20.0%100.0%
A96Dutch, classical variation57935.9%59.2%
A92Dutch, stonewall variation14740.1%60.9%
A94Dutch, stonewall with Ba313543.7%56.7%
A92Dutch, stonewall with Nc33844.7%48.7%
A95Dutch, stonewall with Nc332132.4%58.9%
A93Dutch, stonewall, Botwinnik variation29839.3%60.9%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
A90Dutch-Indian, Alekhine variation11131.5%57.2%
E10Dzindzikhashvili defence24243.0%52.5%
A10English opening480637.3%54.8%
A13English opening324937.6%52.9%
A15English opening1654944.1%53.8%
A16English opening196235.5%54.2%
A17English opening33338.7%53.0%
A20English opening1025839.0%53.4%
A21English opening228832.4%55.4%
A22English opening109936.8%50.8%
A13English opening, Agincourt variation210540.1%55.0%
A15English, 1...Nf6 (Anglo-Indian defense)192338.8%55.0%
A10English, Adorjan defence97039.1%51.9%
A10English, Anglo-Dutch defense122732.5%51.5%
A16English, Anglo-Gruenfeld defense41043.2%54.8%
A16English, Anglo-Gruenfeld defense, Korchnoi variation9837.8%55.6%
A16English, Anglo-Gruenfeld, Czech defense27434.7%59.7%
A16English, Anglo-Gruenfeld, Smyslov defense19737.6%56.9%
A22English, Bellon gambit4727.7%58.5%
A12English, Bled variation3138.7%45.2%
A26English, Botvinnik system40236.8%53.2%
A28English, Bradley Beach variation8225.6%39.6%
A24English, Bremen system with ...g624638.6%49.4%
A23English, Bremen system, Keres variation97440.6%50.9%
A22English, Bremen, Smyslov system209639.0%48.7%
A22English, Bremen, reverse dragon86140.5%51.2%
A12English, Capablanca's variation13939.6%46.4%
A22English, Carls' Bremen system60737.6%54.2%
A11English, Caro-Kann defensive system220140.2%53.4%
A12English, Caro-Kann defensive system30535.4%51.8%
A12English, Caro-Kann defensive system, Bogolyubov variation17045.9%54.7%
A10English, Jaenisch gambit20.0%100.0%
A21English, Keres variation1421.4%46.4%
A21English, Kramnik-Shirov counterattack320138.2%51.9%
A13English, Kurajica defence17834.8%60.7%
A12English, London defensive system16842.9%53.0%
A18English, Mikenas-Carls variation34138.4%57.9%
A18English, Mikenas-Carls, Flohr variation54741.3%59.0%
A18English, Mikenas-Carls, Kevitz variation3234.4%48.4%
A19English, Mikenas-Carls, Sicilian variation73139.0%54.5%
A28English, Nenarokov variation12639.7%50.8%
A13English, Neo-Catalan120342.8%52.3%
A13English, Neo-Catalan accepted169447.9%55.8%
A14English, Neo-Catalan declined127245.3%54.6%
A12English, New York (London) defensive system9836.7%43.9%
A17English, Nimzo-English opening271439.9%53.9%
A20English, Nimzovich variation16631.9%54.5%
A20English, Nimzovich, Flohr variation22238.7%48.2%
A17English, Queens Indian formation36937.7%58.4%
A17English, Queens Indian, Romanishin variation12035.8%54.6%
A13English, Romanishin gambit43341.8%56.7%
A25English, Sicilian reversed121633.6%53.5%
A21English, Smyslov defence6628.8%61.4%
A14English, Symmetrical, Keres defence62148.1%57.4%
A12English, Torre defensive system11239.3%50.9%
A21English, Troeger defence17527.4%56.0%
A13English, Wimpey system24248.3%46.9%
A25English, closed system95635.9%53.7%
A26English, closed system45638.2%51.5%
A25English, closed system (without ...d6)14630.8%55.1%
A25English, closed, 5.Rb161338.7%52.4%
A25English, closed, 5.Rb1 Taimanov variation1020.0%60.0%
A25English, closed, Hort variation5234.6%55.8%
A25English, closed, Taimanov variation3420.6%63.2%
A28English, four knights system48641.6%52.9%
A28English, four knights, 4.e3148239.3%52.2%
A28English, four knights, Capablanca variation71538.5%53.8%
A28English, four knights, Marini variation120839.2%50.2%
A28English, four knights, Nimzovich variation102137.3%53.9%
A28English, four knights, Romanishin variation64650.6%52.2%
A28English, four knights, Stean variation11143.2%56.8%
A29English, four knights, kingside fianchetto804041.9%52.3%
A30English, symmetrical variation488640.2%54.2%
A32English, symmetrical variation86645.0%54.2%
A33English, symmetrical variation220148.0%53.8%
A34English, symmetrical variation163039.9%53.9%
A35English, symmetrical variation42035.7%50.2%
A36English, symmetrical variation15433.8%51.3%
A37English, symmetrical variation139641.6%51.1%
A38English, symmetrical variation69644.3%54.9%
A31English, symmetrical, Benoni formation153340.1%55.7%
A36English, symmetrical, Botvinnik system21035.2%49.5%
A36English, symmetrical, Botvinnik system reversed12444.4%52.8%
A37English, symmetrical, Botvinnik system reversed104039.8%51.9%
A33English, symmetrical, Geller variation85640.4%54.0%
A34English, symmetrical, Rubinstein system52840.3%51.8%
A35English, symmetrical, four knights system292544.5%53.5%
A30English, symmetrical, hedgehog system328147.2%56.1%
A30English, symmetrical, hedgehog, flexible formation21445.3%54.0%
A38English, symmetrical, main line with b3366.7%33.3%
A38English, symmetrical, main line with d321144.5%54.0%
A39English, symmetrical, main line with d468842.0%56.2%
A34English, symmetrical, three knights system195246.0%54.5%
A27English, three knights system140631.5%52.1%
A36English, ultra-symmetrical variation207338.6%52.4%
C51Evans counter-gambit3630.6%56.9%
C51Evans gambit2040.0%65.0%
C52Evans gambit44239.6%49.2%
C51Evans gambit declined6238.7%53.2%
C51Evans gambit declined, 5.a421140.8%47.4%
C51Evans gambit declined, Lange variation20.0%0.0%
C51Evans gambit declined, Showalter variation5345.3%58.5%
C51Evans gambit, 5...Be77736.4%61.0%
C52Evans gambit, Alapin-Steinitz variation1353.8%34.6%
C51Evans gambit, Cordel variation11147.7%46.4%
C51Evans gambit, Fraser attack1428.6%57.1%
C51Evans gambit, Goering attack450.0%75.0%
C52Evans gambit, Lasker defence1435.7%25.0%
C52Evans gambit, Leonhardt variation633.3%50.0%
C52Evans gambit, Levenfish variation616.7%25.0%
C51Evans gambit, Morphy attack3740.5%58.1%
C51Evans gambit, Paulsen variation2025.0%67.5%
C52Evans gambit, Richardson attack1936.8%28.9%
C52Evans gambit, Sanders-Alapin variation633.3%50.0%
C51Evans gambit, Stone-Ware variation28531.9%54.9%
C52Evans gambit, Tartakower attack10145.5%47.5%
C51Evans gambit, Ulvestad variation20.0%100.0%
C52Evans gambit, Waller attack922.2%88.9%
C52Evans gambit, compromised defence5425.9%70.4%
C52Evans gambit, compromised defence, Paulsen variation1723.5%58.8%
C52Evans gambit, compromised defence, Potter variation10.0%100.0%
C51Evans gambit, normal variation6131.1%46.7%
C49Four knights10452.9%47.6%
C46Four knights game102442.0%51.1%
C48Four knights, Bardeleben variation850.0%50.0%
C47Four knights, Belgrade gambit18342.6%52.5%
C49Four knights, Gunsberg counter-attack560.0%50.0%
C46Four knights, Gunsberg variation16343.6%49.4%
C46Four knights, Italian variation24944.2%47.4%
C49Four knights, Janowski variation2740.7%64.8%
C48Four knights, Marshall variation1020.0%50.0%
C49Four knights, Nimzovich (Paulsen) variation9654.2%57.3%
C48Four knights, Ranken variation3345.5%62.1%
C48Four knights, Rubinstein counter-gambit143742.4%52.0%
C48Four knights, Rubinstein counter-gambit, 5.Be21241.7%45.8%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1952.6%47.4%
C48Four knights, Rubinstein counter-gambit, Henneberger variation10551.4%50.5%
C48Four knights, Rubinstein counter-gambit, exchange variation23567.2%52.3%
C46Four knights, Schultze-Mueller gambit50.0%20.0%
C47Four knights, Scotch variation3435.3%52.9%
C47Four knights, Scotch, 4...exd463253.8%52.7%
C47Four knights, Scotch, Krause variation6839.7%64.0%
C48Four knights, Spanish variation35749.9%55.5%
C48Four knights, Spanish, classical defence26045.4%49.6%
C48Four knights, Spielmann variation862.5%43.8%
C49Four knights, Svenonius variation560.0%50.0%
C49Four knights, double Ruy Lopez26642.5%56.6%
C49Four knights, symmetrical variation22741.9%54.8%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C49Four knights, symmetrical, Capablanca variation2454.2%60.4%
C49Four knights, symmetrical, Maroczy system9243.5%56.5%
C49Four knights, symmetrical, Metger unpin39137.6%51.5%
C49Four knights, symmetrical, Pillsbury variation6845.6%44.9%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
B00Fred80.0%75.0%
C00French defence111430.3%56.3%
C11French defence27345.1%54.4%
C00French defence, Steiner variation100242.7%51.6%
C00French, Alapin variation1827.8%58.3%
C13French, Albin-Alekhine-Chatard attack38931.1%55.7%
C13French, Albin-Alekhine-Chatard attack, Breyer variation10239.2%62.7%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation2020.0%65.0%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation6937.7%66.7%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation366.7%66.7%
C11French, Burn variation619545.6%53.1%
C00French, Chigorin variation134731.8%50.4%
C10French, Fort Knox variation78340.7%57.3%
C10French, Frere (Becker) variation3237.5%62.5%
C11French, Henneberger variation1533.3%50.0%
C00French, King's Indian attack300236.1%51.6%
C00French, Labourdonnais variation30829.5%45.0%
C12French, MacCutcheon variation17941.9%45.0%
C12French, MacCutcheon, Bernstein variation3125.8%58.1%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C12French, MacCutcheon, Chigorin variation9742.3%49.0%
C12French, MacCutcheon, Dr. Olland (Dutch) variation13941.0%60.1%
C12French, MacCutcheon, Duras variation425.0%62.5%
C12French, MacCutcheon, Grigoriev variation3360.6%54.5%
C12French, MacCutcheon, Janowski variation16137.3%58.4%
C12French, MacCutcheon, Lasker variation24328.8%60.9%
C12French, MacCutcheon, Lasker variation, 8...g643436.6%59.3%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
C12French, MacCutcheon, advance variation1526.7%20.0%
C10French, Marshall variation250.0%25.0%
C10French, Paulsen variation111330.5%60.2%
C00French, Pelikan variation7639.5%51.3%
C00French, Reti (Spielmann) variation25635.5%51.4%
C00French, Reversed Philidor formation1723.5%64.7%
C10French, Rubinstein variation318848.6%55.8%
C10French, Rubinstein, Capablanca line1060.0%50.0%
C00French, Schlechter variation25842.6%52.3%
C00French, Steinitz attack3528.6%45.7%
C11French, Steinitz variation135237.8%54.7%
C11French, Steinitz, Boleslavsky variation454836.2%57.1%
C11French, Steinitz, Bradford attack333.3%50.0%
C11French, Steinitz, Gledhill attack14634.2%52.7%
C11French, Swiss variation6045.0%54.2%
C03French, Tarrasch328043.5%57.0%
C05French, Tarrasch, Botvinnik variation11435.1%65.8%
C07French, Tarrasch, Eliskases variation17448.3%54.0%
C04French, Tarrasch, Guimard main line59529.2%60.8%
C03French, Tarrasch, Guimard variation15731.2%62.1%
C03French, Tarrasch, Haberditz variation616.7%75.0%
C06French, Tarrasch, Leningrad variation1921.1%84.2%
C05French, Tarrasch, closed variation155631.2%60.5%
C06French, Tarrasch, closed variation, main line117239.0%59.8%
C07French, Tarrasch, open variation470947.8%54.3%
C09French, Tarrasch, open variation, main line134251.9%56.7%
C08French, Tarrasch, open, 4.ed ed169751.6%54.6%
C00French, Two knights variation36535.6%53.2%
C15French, Winawer (Nimzovich) variation131541.2%54.8%
C15French, Winawer, Alekhine (Maroczy) gambit33040.6%56.4%
C15French, Winawer, Alekhine gambit1637.5%56.3%
C15French, Winawer, Alekhine gambit, Kan variation7042.9%52.9%
C15French, Winawer, Kondratiyev variation1855.6%61.1%
C16French, Winawer, Petrosian variation29232.5%55.7%
C16French, Winawer, advance variation120432.9%56.9%
C17French, Winawer, advance variation11938.7%58.0%
C18French, Winawer, advance variation69427.4%62.5%
C17French, Winawer, advance, 5.a358236.6%63.7%
C19French, Winawer, advance, 6...Ne749634.9%60.8%
C17French, Winawer, advance, Bogolyubov variation43238.7%52.2%
C17French, Winawer, advance, Rauzer variation2236.4%63.6%
C17French, Winawer, advance, Russian variation7544.0%51.3%
C19French, Winawer, advance, Smyslov variation22328.3%64.3%
C19French, Winawer, advance, poisoned pawn variation298333.6%61.6%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation87032.2%62.5%
C19French, Winawer, advance, positional main line129831.0%58.7%
C18French, Winawer, classical variation45431.3%58.6%
C15French, Winawer, fingerslip variation6634.8%46.2%
C00French, Wing gambit6841.2%60.3%
C02French, advance variation171932.1%56.5%
C02French, advance, Euwe variation184136.6%55.5%
C02French, advance, Milner-Barry gambit14436.8%49.0%
C02French, advance, Nimzovich system15128.5%50.7%
C02French, advance, Nimzovich variation1827.8%47.2%
C02French, advance, Paulsen attack224533.8%54.9%
C02French, advance, Steinitz variation69540.1%57.5%
C02French, advance, Wade variation42639.4%58.5%
C13French, classical3545.7%45.7%
C14French, classical variation1414.3%42.9%
C14French, classical, Alapin variation13046.2%53.1%
C13French, classical, Anderssen variation2433.3%41.7%
C13French, classical, Anderssen-Richter variation1625.0%50.0%
C13French, classical, Frankfurt variation837.5%81.3%
C14French, classical, Pollock variation1729.4%44.1%
C14French, classical, Rubinstein variation4837.5%62.5%
C14French, classical, Stahlberg variation650.0%58.3%
C14French, classical, Steinitz variation89936.6%58.8%
C14French, classical, Tarrasch variation2425.0%58.3%
C13French, classical, Tartakower variation3531.4%55.7%
C13French, classical, Vistaneckis (Nimzovich) variation137.7%57.7%
C01French, exchange variation214544.3%53.4%
C01French, exchange, Bogolyubov variation1050.0%45.0%
C01French, exchange, Svenonius variation8736.8%51.7%
A00Gedult's opening1414.3%42.9%
C50Giuoco Pianissimo379140.9%53.0%
C50Giuoco Pianissimo, Canal variation22143.0%52.3%
C50Giuoco Pianissimo, Italian four knights variation64641.3%51.8%
C50Giuoco Piano249142.2%52.3%
C53Giuoco Piano378240.2%52.6%
C54Giuoco Piano25153.4%50.2%
C53Giuoco Piano, Anderssen variation4755.3%46.8%
C53Giuoco Piano, Bird's attack21333.8%50.2%
C53Giuoco Piano, Eisinger variation20.0%100.0%
C53Giuoco Piano, LaBourdonnais variation6750.7%58.2%
C53Giuoco Piano, Mestel variation1216.7%66.7%
C54Giuoco Piano, Moeller (Therkatz) attack4454.5%47.7%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C53Giuoco Piano, centre-holding variation9042.2%61.1%
C53Giuoco Piano, close variation14737.4%59.5%
C50Giuoco Piano, four knights variation7238.9%54.2%
C55Giuoco piano20.0%50.0%
A00Global opening425.0%62.5%
C40Greco defence1225.0%45.8%
A00Grob's attack19942.2%35.2%
A00Grob, Fritz gambit5743.9%30.7%
A00Grob, Romford counter-gambit425.0%62.5%
A00Grob, spike attack633.3%33.3%
D80Gruenfeld defence164046.4%53.8%
D99Gruenfeld defence, Smyslov, Yugoslav variation2722.2%51.9%
D99Gruenfeld defence, Smyslov, main line26342.2%58.7%
D93Gruenfeld with Bf4 e341649.3%55.6%
D94Gruenfeld with e3 Bd32540.0%48.0%
D95Gruenfeld with e3 & Qb34839.6%59.4%
D82Gruenfeld, 4.Bf480143.8%53.9%
D92Gruenfeld, 5.Bf4100446.3%56.0%
D91Gruenfeld, 5.Bg5112840.9%48.5%
D94Gruenfeld, 5.e352744.4%56.2%
D95Gruenfeld, Botvinnik variation14644.5%50.3%
D94Gruenfeld, Flohr defence2352.2%60.9%
D90Gruenfeld, Flohr variation49841.0%52.8%
D83Gruenfeld, Gruenfeld gambit11846.6%55.5%
D84Gruenfeld, Gruenfeld gambit accepted17548.6%58.6%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation3860.5%59.2%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation54742.6%57.1%
D80Gruenfeld, Lundin variation10.0%0.0%
D94Gruenfeld, Makogonov variation14340.6%51.0%
D94Gruenfeld, Opovcensky variation24144.4%52.1%
D81Gruenfeld, Russian variation78542.0%58.7%
D96Gruenfeld, Russian variation53341.8%51.9%
D97Gruenfeld, Russian variation with e49732.0%61.3%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation216946.4%51.6%
D97Gruenfeld, Russian, Byrne (Simagin) variation21440.7%63.3%
D98Gruenfeld, Russian, Keres variation2250.0%47.7%
D97Gruenfeld, Russian, Levenfish variation2934.5%62.1%
D97Gruenfeld, Russian, Prins variation53946.0%56.4%
D98Gruenfeld, Russian, Smyslov variation40040.3%59.9%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation27845.0%58.1%
D90Gruenfeld, Schlechter variation9636.5%53.6%
D94Gruenfeld, Smyslov defence23148.5%55.0%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd29142.3%61.0%
D89Gruenfeld, Spassky variation, main line, 13.Bd37540.0%48.0%
D80Gruenfeld, Stockholm variation111445.0%53.7%
D90Gruenfeld, Three knights variation103549.5%53.7%
D85Gruenfeld, exchange variation439948.5%55.8%
D86Gruenfeld, exchange, Larsen variation1136.4%54.5%
D87Gruenfeld, exchange, Seville variation9353.8%61.3%
D86Gruenfeld, exchange, Simagin's improved variation22039.1%56.4%
D86Gruenfeld, exchange, Simagin's lesser variation9443.6%60.1%
D89Gruenfeld, exchange, Sokolsky variation1241.7%45.8%
D87Gruenfeld, exchange, Spassky variation69444.5%56.4%
D86Gruenfeld, exchange, classical variation145046.6%55.9%
D85Gruenfeld, modern exchange variation419047.9%56.3%
C40Gunderam defence13332.3%64.3%
C21Halasz gambit2231.8%43.2%
A43Hawk (Habichd) defence366.7%33.3%
C50Hungarian defence24441.0%50.0%
C44Inverted Hanham5234.6%44.2%
C44Inverted Hungarian4645.7%51.1%
C36KGA, Abbazia defence (classical defence, modern defence[!])14840.5%59.5%
C36KGA, Abbazia defence, Botvinnik variation450.0%50.0%
C36KGA, Abbazia defence, modern variation80139.6%47.8%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C34KGA, Becker defence10031.0%50.5%
C37KGA, Blachly gambit3834.2%30.3%
C34KGA, Bonsch-Osmolovsky variation21430.8%53.7%
C33KGA, Breyer gambit742.9%50.0%
C33KGA, Carrera (Basman) gambit825.0%50.0%
C37KGA, Cochrane gambit714.3%21.4%
C35KGA, Cunningham defence27428.5%51.5%
C35KGA, Cunningham, Euwe defence13826.1%47.1%
C35KGA, Cunningham, three pawns gambit20.0%100.0%
C34KGA, Fischer defence33531.9%46.1%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C38KGA, Hanstein gambit1323.1%57.7%
C33KGA, Keres (Mason-Steinitz) gambit6942.0%45.7%
C39KGA, Kieseritsky, Berlin defence9233.7%42.9%
C39KGA, Kieseritsky, Berlin defence, 6.Bc47230.6%41.7%
C39KGA, Kieseritsky, Brentano (Campbell) defence333.3%50.0%
C39KGA, Kieseritsky, Brentano defence333.3%50.0%
C39KGA, Kieseritsky, Brentano defence, Caro variation3100.0%50.0%
C39KGA, Kieseritsky, Kolisch defence15543.9%46.5%
C39KGA, Kieseritsky, Neumann defence2540.0%60.0%
C39KGA, Kieseritsky, Paulsen defence1020.0%50.0%
C39KGA, Kieseritsky, Rice gambit1921.1%26.3%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence7044.3%40.7%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence3444.1%54.4%
C37KGA, King's knight's gambit3759.5%51.4%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit1315.4%53.8%
C37KGA, Muzio gambit1833.3%33.3%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C38KGA, Philidor gambit2920.7%31.0%
C38KGA, Philidor gambit, Schultz variation1060.0%30.0%
C37KGA, Quaade gambit4932.7%38.8%
C37KGA, Rosentreter gambit3636.1%43.1%
C37KGA, Salvio gambit1526.7%46.7%
C37KGA, Salvio gambit, Anderssen counter-attack50.0%60.0%
C34KGA, Schallop defence23630.5%53.8%
C37KGA, Silberschmidt gambit633.3%33.3%
C33KGA, Villemson (Steinitz) gambit2030.0%50.0%
C33KGA, bishop's gambit39235.7%50.3%
C33KGA, bishop's gambit, Anderssen variation633.3%50.0%
C33KGA, bishop's gambit, Bledow variation18828.2%42.8%
C33KGA, bishop's gambit, Boden defence955.6%50.0%
C33KGA, bishop's gambit, Bogolyubov variation9343.0%50.5%
C33KGA, bishop's gambit, Bryan counter-gambit20.0%0.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence3625.0%34.7%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
C33KGA, bishop's gambit, Jaenisch variation15541.3%47.1%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit1020.0%50.0%
C33KGA, bishop's gambit, Maurian defence4515.6%41.1%
C33KGA, bishop's gambit, McDonnell attack10.0%100.0%
C33KGA, bishop's gambit, Morphy variation6934.8%56.5%
C33KGA, bishop's gambit, Paulsen attack2339.1%45.7%
C33KGA, bishop's gambit, Ruy Lopez defence5343.4%51.9%
C33KGA, bishop's gambit, Steinitz defence10528.6%50.5%
C33KGA, bishop's gambit, classical defence60.0%33.3%
C30KGD, 2...Nf67028.6%61.4%
C31KGD, Falkbeer counter-gambit31135.4%53.1%
C31KGD, Falkbeer, 3...e45147.1%47.1%
C31KGD, Falkbeer, 4.d36050.0%63.3%
C32KGD, Falkbeer, 5.de6237.1%50.8%
C32KGD, Falkbeer, Charousek gambit1361.5%53.8%
C32KGD, Falkbeer, Keres variation4139.0%51.2%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C31KGD, Falkbeer, Morphy gambit2123.8%50.0%
C31KGD, Falkbeer, Nimzovich variation2937.9%53.4%
C32KGD, Falkbeer, Reti variation2835.7%53.6%
C31KGD, Falkbeer, Rubinstein variation3010.0%58.3%
C31KGD, Falkbeer, Tartakower variation7058.6%47.9%
C32KGD, Falkbeer, main line, 7...Bf51127.3%68.2%
C30KGD, Keene's defence9428.7%64.4%
C30KGD, Mafia defence837.5%68.8%
C31KGD, Nimzovich counter-gambit32036.6%51.7%
C30KGD, Norwalde variation2213.6%79.5%
C30KGD, classical counter-gambit1050.0%55.0%
C30KGD, classical variation27628.3%54.3%
C30KGD, classical, 4.c321731.8%59.2%
C30KGD, classical, Hanham variation650.0%58.3%
C30KGD, classical, Heath variation1346.2%53.8%
C30KGD, classical, Marshall attack1080.0%50.0%
C30KGD, classical, Reti variation955.6%50.0%
C30KGD, classical, Soldatenkov variation728.6%28.6%
C30KGD, classical, Svenonius variation366.7%66.7%
B00KP, Colorado counter1241.7%70.8%
C20KP, Indian opening14436.8%46.9%
C20KP, King's head opening250.0%25.0%
C20KP, Lopez opening2040.0%35.0%
C20KP, Mengarini's opening2240.9%29.5%
C20KP, Napoleon's opening4537.8%61.1%
B00KP, Nimzovich defence108332.7%58.7%
B00KP, Nimzovich defence, Bogolyubov variation14829.7%60.1%
B00KP, Nimzovich defence, Marshall gambit616.7%25.0%
C20KP, Patzer opening13827.5%41.3%
A50Kevitz-Trajkovich defence66233.2%56.2%
E60King's Indian defence155433.8%55.3%
E61King's Indian defence, 3.Nc3171736.2%55.8%
E72King's Indian with e4 & g315934.6%56.3%
E60King's Indian, 3.Nf3424141.0%57.2%
E60King's Indian, 3.g3270742.5%55.4%
E60King's Indian, 3.g3, counterthrust variation1729.4%32.4%
E70King's Indian, 4.e4145433.2%58.5%
E73King's Indian, 5.Be26129.5%63.9%
E90King's Indian, 5.Nf3134333.9%57.1%
E91King's Indian, 6.Be286434.1%63.6%
E92King's Indian, Andersson variation42755.7%48.2%
E60King's Indian, Anti-Gruenfeld17038.2%52.1%
E73King's Indian, Averbakh system142234.7%56.2%
E74King's Indian, Averbakh, 6...c555939.4%58.0%
E75King's Indian, Averbakh, main line26733.7%57.3%
E60King's Indian, Danube gambit1241.7%54.2%
A48King's Indian, East Indian defence148739.4%52.7%
E76King's Indian, Four pawns attack37338.3%58.3%
E77King's Indian, Four pawns attack22331.8%59.4%
E77King's Indian, Four pawns attack, 6.Be24940.8%44.9%
E77King's Indian, Four pawns attack, Florentine gambit1838.9%41.7%
E76King's Indian, Four pawns attack, dynamic line34336.2%52.2%
E79King's Indian, Four pawns attack, main line5757.9%57.0%
E78King's Indian, Four pawns attack, with Be2 and Nf311340.7%57.5%
E92King's Indian, Gligoric-Taimanov system179535.8%58.6%
E91King's Indian, Kazakh variation37438.0%58.0%
E70King's Indian, Kramer system54231.5%57.5%
E90King's Indian, Larsen variation14634.9%59.2%
A48King's Indian, London system188440.0%53.1%
E71King's Indian, Makagonov system (5.h3)112835.7%59.5%
E92King's Indian, Petrosian system15227.0%54.3%
E92King's Indian, Petrosian system, Stein variation76734.2%54.0%
E93King's Indian, Petrosian system, main line14233.8%53.5%
E72King's Indian, Pomar system6737.3%57.5%
E80King's Indian, Saemisch variation71534.1%58.7%
E81King's Indian, Saemisch, 5...O-O306435.3%55.1%
E83King's Indian, Saemisch, 6...Nc619832.3%53.5%
E81King's Indian, Saemisch, Byrne variation10839.8%57.9%
E83King's Indian, Saemisch, Panno formation47337.2%56.9%
E84King's Indian, Saemisch, Panno main line74536.5%54.4%
E83King's Indian, Saemisch, Ruban variation2729.6%51.9%
E82King's Indian, Saemisch, double fianchetto variation19836.9%58.3%
E89King's Indian, Saemisch, orthodox main line8831.8%55.7%
E85King's Indian, Saemisch, orthodox variation21339.4%55.4%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c665032.9%53.4%
E87King's Indian, Saemisch, orthodox, 7.d550827.2%57.1%
E88King's Indian, Saemisch, orthodox, 7.d5 c649433.4%58.0%
E87King's Indian, Saemisch, orthodox, Bronstein variation250.0%75.0%
E73King's Indian, Semi-Averbakh system14136.9%58.2%
E61King's Indian, Smyslov system12636.5%52.4%
A48King's Indian, Torre attack243540.3%50.3%
E90King's Indian, Zinnowitz variation7740.3%55.2%
E70King's Indian, accelerated Averbakh system20535.6%52.9%
E92King's Indian, classical variation3930.8%48.7%
E62King's Indian, fianchetto variation10040.0%54.0%
E62King's Indian, fianchetto with ...Nc631833.6%55.5%
E67King's Indian, fianchetto with ...Nd714740.1%58.2%
A49King's Indian, fianchetto without c4176941.3%55.6%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation66233.4%60.0%
E62King's Indian, fianchetto, Larsen system36741.4%60.8%
E63King's Indian, fianchetto, Panno variation255438.1%56.8%
E62King's Indian, fianchetto, Simagin variation10131.7%64.4%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation42536.7%57.2%
E66King's Indian, fianchetto, Yugoslav Panno41533.0%57.7%
E64King's Indian, fianchetto, Yugoslav system16242.6%58.3%
E65King's Indian, fianchetto, Yugoslav, 7.O-O32646.3%53.5%
E69King's Indian, fianchetto, classical main line57933.7%62.8%
E67King's Indian, fianchetto, classical variation68442.1%55.3%
E68King's Indian, fianchetto, classical variation, 8.e4160740.4%59.6%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation39636.6%59.7%
E94King's Indian, orthodox variation126239.7%55.3%
E94King's Indian, orthodox, 7...Nbd7112035.4%60.0%
E95King's Indian, orthodox, 7...Nbd7, 8.Re156539.1%56.0%
E96King's Indian, orthodox, 7...Nbd7, main line10138.6%58.9%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)492934.4%56.0%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1101927.2%61.5%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack15321.6%61.8%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack142435.9%58.7%
E99King's Indian, orthodox, Aronin-Taimanov, main line8128.4%66.0%
E94King's Indian, orthodox, Donner variation30637.3%58.8%
C30King's gambit35037.1%57.1%
C33King's gambit accepted333.3%16.7%
C40King's knight opening20.0%50.0%
C34King's knight's gambit4628.3%48.9%
C38King's knight's gambit6233.9%25.0%
C39King's knight's gambit1428.6%50.0%
C20King's pawn game11636.2%50.9%
C44King's pawn game13830.4%50.0%
C50King's pawn game28535.4%60.5%
B00King's pawn opening274734.4%57.0%
C44Konstantinopolsky opening6136.1%60.7%
A00Lasker simul special333.3%50.0%
C40Latvian counter-gambit38929.6%59.5%
C40Latvian gambit, 3.Bc42152.4%50.0%
C40Latvian, Behting variation3100.0%50.0%
C40Latvian, Fraser defence6131.1%68.0%
C40Latvian, Nimzovich variation20.0%50.0%
C40Latvian, Polerio variation2532.0%44.0%
B00Lemming defence1233.3%58.3%
C00Lengfellner system2729.6%59.3%
D00Levitsky attack (Queen's bishop attack)299136.1%50.7%
A00Mieses opening35032.0%50.0%
A40Modern defence185735.6%57.0%
A41Modern defence15632.1%55.8%
A42Modern defence, Averbakh system88333.3%59.1%
A42Modern defence, Averbakh system, Kotov variation18128.7%63.0%
A42Modern defence, Averbakh system, Randspringer variation1513.3%66.7%
A03Mujannah opening450.0%25.0%
D70Neo-Gruenfeld (Kemeri) defence28639.2%53.1%
D70Neo-Gruenfeld defence39238.0%55.0%
D73Neo-Gruenfeld, 5.Nf3112951.1%55.8%
D71Neo-Gruenfeld, 5.cd42345.9%56.7%
D72Neo-Gruenfeld, 5.cd, main line31735.3%61.2%
D77Neo-Gruenfeld, 6.O-O97048.0%55.1%
D78Neo-Gruenfeld, 6.O-O c6114745.2%52.7%
D79Neo-Gruenfeld, 6.O-O, main line74050.8%53.6%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O33648.2%56.5%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb667246.7%57.3%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc326447.7%58.0%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc3938.5%65.4%
E00Neo-Indian (Seirawan) attack29432.0%50.0%
E20Nimzo-Indian defence29647.0%53.2%
E40Nimzo-Indian, 4.e331935.1%55.8%
E46Nimzo-Indian, 4.e3 O-O13640.4%51.8%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd392946.4%52.0%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d583844.3%52.3%
E41Nimzo-Indian, 4.e3 c5111544.6%54.8%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)95048.6%54.6%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d539650.0%52.3%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d532544.3%49.8%
E49Nimzo-Indian, 4.e3, Botvinnik system31745.1%56.0%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation56241.5%54.4%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd711446.5%53.1%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc142448.9%55.6%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation215049.0%55.3%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation5154.9%62.7%
E53Nimzo-Indian, 4.e3, Keres variation16445.1%50.6%
E51Nimzo-Indian, 4.e3, Ragozin variation4835.4%67.7%
E40Nimzo-Indian, 4.e3, Taimanov variation24535.1%60.0%
E59Nimzo-Indian, 4.e3, main line80543.6%53.9%
E52Nimzo-Indian, 4.e3, main line with ...b673941.5%50.8%
E53Nimzo-Indian, 4.e3, main line with ...c557344.9%55.4%
E56Nimzo-Indian, 4.e3, main line with 7...Nc658451.7%55.5%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3165445.0%52.8%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd1338.5%57.7%
E43Nimzo-Indian, Fischer variation82336.6%53.3%
E44Nimzo-Indian, Fischer variation, 5.Ne276739.4%55.3%
E20Nimzo-Indian, Kmoch variation138638.4%53.6%
E30Nimzo-Indian, Leningrad variation102934.2%50.0%
E30Nimzo-Indian, Leningrad, ...b5 gambit8433.3%47.6%
E31Nimzo-Indian, Leningrad, main line43934.6%49.4%
E20Nimzo-Indian, Mikenas attack850.0%62.5%
E46Nimzo-Indian, Reshevsky variation130045.0%51.1%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system71945.5%54.9%
E24Nimzo-Indian, Saemisch variation49938.7%53.0%
E25Nimzo-Indian, Saemisch variation22541.8%55.1%
E26Nimzo-Indian, Saemisch variation28937.0%55.9%
E27Nimzo-Indian, Saemisch variation12344.7%50.0%
E28Nimzo-Indian, Saemisch variation36831.8%52.6%
E24Nimzo-Indian, Saemisch, Botvinnik variation11339.8%43.8%
E29Nimzo-Indian, Saemisch, Capablanca variation3842.1%42.1%
E25Nimzo-Indian, Saemisch, Keres variation36648.4%54.5%
E26Nimzo-Indian, Saemisch, O'Kelly variation5839.7%50.9%
E25Nimzo-Indian, Saemisch, Romanovsky variation16558.8%52.4%
E29Nimzo-Indian, Saemisch, main line18936.5%56.9%
E46Nimzo-Indian, Simagin variation23144.6%48.7%
E22Nimzo-Indian, Spielmann variation71739.1%53.3%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc612344.7%46.7%
E23Nimzo-Indian, Spielmann, Karlsbad variation4942.9%45.9%
E23Nimzo-Indian, Spielmann, San Remo variation2941.4%51.7%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
E32Nimzo-Indian, classical variation835543.7%53.9%
E33Nimzo-Indian, classical, 4...Nc629736.0%55.7%
E38Nimzo-Indian, classical, 4...c582639.6%59.5%
E32Nimzo-Indian, classical, Adorjan gambit14346.9%53.5%
E36Nimzo-Indian, classical, Botvinnik variation1643.8%59.4%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation48939.9%59.0%
E34Nimzo-Indian, classical, Noa variation113552.7%53.7%
E36Nimzo-Indian, classical, Noa variation, 5.a351145.4%53.6%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed91449.2%51.1%
E36Nimzo-Indian, classical, Noa variation, main line10.0%0.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc259748.9%60.3%
E39Nimzo-Indian, classical, Pirc variation122341.3%55.0%
E37Nimzo-Indian, classical, San Remo variation1127.3%59.1%
E41Nimzo-Indian, e3, Huebner variation55534.4%50.9%
E21Nimzo-Indian, three knights variation380142.5%54.5%
E21Nimzo-Indian, three knights, Euwe variation862.5%56.3%
E21Nimzo-Indian, three knights, Korchnoi variation1030.0%35.0%
A01Nimzovich-Larsen attack102236.8%51.7%
A01Nimzovich-Larsen attack, Dutch variation4524.4%58.9%
A01Nimzovich-Larsen attack, English variation53935.6%49.4%
A01Nimzovich-Larsen attack, Indian variation68937.3%49.9%
A01Nimzovich-Larsen attack, Polish variation616.7%58.3%
A01Nimzovich-Larsen attack, classical variation228235.0%49.2%
A01Nimzovich-Larsen attack, modern variation442838.7%50.5%
A01Nimzovich-Larsen attack, symmetrical variation91240.8%50.1%
B06Norwegian defence666.7%50.0%
A00Novosibirsk opening3036.7%55.0%
A43Old Benoni defence266534.3%56.8%
A44Old Benoni defence6929.0%59.4%
A43Old Benoni, Franco-Benoni defence19833.8%62.4%
A43Old Benoni, Mujannah formation8732.2%63.2%
A43Old Benoni, Schmid's system4126.8%59.8%
A41Old Indian defence174932.5%53.8%
A53Old Indian defence153137.6%58.7%
A54Old Indian, Dus-Khotimirsky variation2227.3%40.9%
A53Old Indian, Janowski variation22633.6%55.8%
A41Old Indian, Tartakower (Wade) variation184133.4%59.3%
A54Old Indian, Ukrainian variation20938.8%54.3%
A54Old Indian, Ukrainian variation, 4.Nf348336.6%54.6%
A55Old Indian, main line60635.8%58.5%
B00Owen defence51333.7%60.7%
A45Paleface attack4632.6%51.1%
C42Petrov three knights game42139.7%58.1%
C42Petrov's defence45541.5%53.1%
C42Petrov, Cochrane gambit8721.8%36.2%
C42Petrov, Cozio (Lasker) attack61650.0%51.9%
C42Petrov, Damiano variation3246.9%54.7%
C42Petrov, French attack966.7%66.7%
C42Petrov, Italian variation6527.7%49.2%
C42Petrov, Kaufmann attack33148.6%52.7%
C42Petrov, Nimzovich attack190546.1%55.2%
C42Petrov, Paulsen attack25742.8%51.0%
C43Petrov, Urusov gambit1414.3%71.4%
C42Petrov, classical attack132149.7%57.6%
C42Petrov, classical attack, Berger variation2560.0%58.0%
C42Petrov, classical attack, Chigorin variation73543.0%57.6%
C42Petrov, classical attack, Jaenisch variation190846.7%58.4%
C42Petrov, classical attack, Krause variation944.4%33.3%
C42Petrov, classical attack, Marshall variation128444.6%58.1%
C42Petrov, classical attack, Mason variation18746.5%58.6%
C42Petrov, classical attack, Tarrasch variation366.7%66.7%
C42Petrov, classical attack, close variation21345.5%58.9%
C43Petrov, modern (Steinitz) attack6339.7%56.3%
C43Petrov, modern attack, Bardeleben variation944.4%55.6%
C43Petrov, modern attack, Steinitz variation250.0%75.0%
C43Petrov, modern attack, Symmetrical variation343845.3%52.9%
C43Petrov, modern attack, Trifunovic variation7650.0%51.3%
C43Petrov, modern attack, main line26448.5%57.6%
C41Philidor's defence50335.8%59.0%
C41Philidor, Boden variation1050.0%45.0%
C41Philidor, Hanham variation6333.3%62.7%
C41Philidor, Hanham, Delmar variation1428.6%42.9%
C41Philidor, Hanham, Kmoch variation10.0%100.0%
C41Philidor, Hanham, Krause variation1850.0%47.2%
C41Philidor, Hanham, Schlechter variation3551.4%65.7%
C41Philidor, Hanham, Steiner variation2437.5%64.6%
C41Philidor, Improved Hanham variation147139.2%57.9%
C41Philidor, Larsen variation6625.8%65.9%
C41Philidor, Lopez counter-gambit30.0%66.7%
C41Philidor, Nimzovich (Jaenisch) variation2733.3%50.0%
C41Philidor, Nimzovich variation6743.3%59.0%
C41Philidor, Nimzovich, Klein variation1560.0%56.7%
C41Philidor, Nimzovich, Larobok variation9448.9%38.3%
C41Philidor, Nimzovich, Locock variation450.0%50.0%
C41Philidor, Nimzovich, Rellstab variation4738.3%66.0%
C41Philidor, Nimzovich, Sokolsky variation1478.6%60.7%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
C41Philidor, Paulsen attack250.0%25.0%
C41Philidor, Philidor counter-gambit3016.7%71.7%
C41Philidor, Philidor counter-gambit, Zukertort variation1250.0%66.7%
C41Philidor, Philidor counter-gambit, del Rio attack40.0%75.0%
C41Philidor, Steinitz variation20.0%0.0%
C41Philidor, exchange variation112537.9%59.8%
B07Pirc defence266636.1%56.5%
B07Pirc, 150 attack31238.1%61.7%
B09Pirc, Austrian attack24337.9%60.1%
B09Pirc, Austrian attack, 6.Bd3165940.2%60.3%
B09Pirc, Austrian attack, 6.Be341832.8%57.1%
B09Pirc, Austrian attack, 6.e514840.5%56.8%
B09Pirc, Austrian attack, Ljubojevic variation3330.3%48.5%
B09Pirc, Austrian attack, dragon formation97439.9%58.2%
B07Pirc, Byrne variation57833.9%57.1%
B07Pirc, Chinese variation650.0%41.7%
B07Pirc, Holmov system7739.0%53.2%
B07Pirc, Sveshnikov system41837.6%52.3%
B07Pirc, Ufimtsev-Pytel variation72534.8%58.1%
B07Pirc, bayonet (Mariotti) attack5541.8%53.6%
B08Pirc, classical (two knights) system97738.0%58.9%
B08Pirc, classical system, 5.Be2323339.5%58.1%
B08Pirc, classical, h3 system57338.4%58.8%
A00Polish (Sokolsky) opening291139.8%48.1%
A40Polish defence12432.3%57.3%
A00Polish, Outflank variation19542.6%46.9%
C44Ponziani counter-gambit13440.3%60.4%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C44Ponziani opening37230.9%46.1%
C44Ponziani, Caro variation27643.8%49.5%
C44Ponziani, Fraser defence7837.2%66.0%
C44Ponziani, Jaenisch counter-attack251544.7%52.2%
C44Ponziani, Leonhardt variation14636.3%50.3%
C44Ponziani, Reti variation5639.3%60.7%
C44Ponziani, Romanishin variation2433.3%50.0%
C44Ponziani, Steinitz variation54841.8%46.1%
A42Pterodactyl defence34036.8%63.4%
D21QGA, 3.Nf349942.7%57.6%
D20QGA, 3.e4399541.0%56.6%
D26QGA, 4...e638144.9%54.2%
D24QGA, 4.Nc336738.4%52.5%
D25QGA, 4.e323339.9%57.3%
D22QGA, Alekhine defence54541.8%57.6%
D22QGA, Alekhine defence, Alatortsev variation1457.1%42.9%
D21QGA, Alekhine defense, Borisenko-Furman variation4334.9%45.3%
D24QGA, Bogolyubov variation23547.7%54.9%
D21QGA, Ericson variation60.0%33.3%
D25QGA, Flohr variation12927.1%65.5%
D22QGA, Haberditz variation23555.7%56.0%
D25QGA, Janowsky-Larsen variation66541.8%58.5%
D20QGA, Linares variation12036.7%59.2%
D23QGA, Mannheim variation53042.5%53.9%
D25QGA, Smyslov variation11753.0%60.7%
D26QGA, classical variation95451.7%53.8%
D26QGA, classical variation, 6.O-O22349.8%57.6%
D27QGA, classical, 6...a6509253.0%55.0%
D28QGA, classical, 7...b533951.0%55.0%
D28QGA, classical, 7.Qe26950.7%61.6%
D29QGA, classical, 8...Bb738042.4%47.2%
D28QGA, classical, Flohr variation10.0%0.0%
D26QGA, classical, Furman variation560.0%30.0%
D27QGA, classical, Geller variation9453.2%57.4%
D27QGA, classical, Rubinstein variation170548.7%56.7%
D29QGA, classical, Smyslov variation4753.2%43.6%
D26QGA, classical, Steinitz variation18049.4%64.2%
D30QGD121547.5%51.4%
D51QGD5549.1%57.3%
D52QGD25439.8%54.9%
D30QGD Slav64346.2%55.0%
D15QGD Slav accepted15740.8%51.0%
D16QGD Slav accepted, Alapin variation26638.7%64.5%
D10QGD Slav defence555941.0%54.3%
D10QGD Slav defence, Alekhine variation33838.2%57.5%
D10QGD Slav defence, exchange variation231945.2%55.6%
D11QGD Slav, 3.Nf3433441.9%55.4%
D15QGD Slav, 4.Nc3582241.1%55.4%
D11QGD Slav, 4.e3680143.9%55.5%
D12QGD Slav, 4.e3 Bf5451640.7%54.7%
D15QGD Slav, 5.e3 (Alekhine variation)23133.8%56.3%
D12QGD Slav, Amsterdam variation2254.5%45.5%
D11QGD Slav, Breyer variation30042.3%57.8%
D17QGD Slav, Carlsbad variation58740.0%61.6%
D17QGD Slav, Czech defence52949.0%55.7%
D18QGD Slav, Dutch variation47041.3%58.7%
D19QGD Slav, Dutch variation186241.6%56.9%
D19QGD Slav, Dutch variation, main line33044.2%58.5%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D19QGD Slav, Dutch, Saemisch variation333.3%50.0%
D17QGD Slav, Krause attack100540.9%58.6%
D15QGD Slav, Schlechter variation47645.4%59.9%
D30QGD Slav, Semmering variation5036.0%50.0%
D15QGD Slav, Slav gambit7929.1%67.7%
D16QGD Slav, Smyslov variation11937.8%60.9%
D16QGD Slav, Soultanbeieff variation59051.4%52.1%
D16QGD Slav, Steiner variation32038.1%61.9%
D15QGD Slav, Suechting variation21833.0%59.6%
D15QGD Slav, Tolush-Geller gambit17029.4%41.8%
D17QGD Slav, Wiesbaden variation80342.3%57.4%
D10QGD Slav, Winawer counter-gambit30434.2%55.9%
D12QGD Slav, exchange variation11037.3%48.6%
D13QGD Slav, exchange variation110849.0%55.1%
D14QGD Slav, exchange variation, 6.Bf4 Bf586852.8%52.4%
D14QGD Slav, exchange, Trifunovic variation27552.0%52.2%
D43QGD semi-Slav1041242.7%53.1%
D45QGD semi-Slav, 5...Nd785340.6%51.6%
D44QGD semi-Slav, 5.Bg5 dc27148.3%49.3%
D45QGD semi-Slav, 5.e352838.3%57.0%
D46QGD semi-Slav, 6.Bd35040.0%66.0%
D47QGD semi-Slav, 7.Bc48933.7%58.4%
D46QGD semi-Slav, Bogolyubov variation19745.2%56.6%
D44QGD semi-Slav, Botvinnik system (anti-Meran)10934.9%51.4%
D46QGD semi-Slav, Chigorin defence48445.9%55.0%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D48QGD semi-Slav, Meran244.2%43.8%
D47QGD semi-Slav, Meran variation166449.9%53.5%
D48QGD semi-Slav, Meran, 8...a6156150.2%49.1%
D49QGD semi-Slav, Meran, Blumenfeld variation21444.9%53.7%
D48QGD semi-Slav, Meran, Pirc variation1650.0%68.8%
D49QGD semi-Slav, Meran, Rabinovich variation7830.8%47.4%
D49QGD semi-Slav, Meran, Rellstab attack1735.3%58.8%
D48QGD semi-Slav, Meran, Reynolds' variation84439.3%56.3%
D49QGD semi-Slav, Meran, Sozin variation17143.9%47.1%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
D47QGD semi-Slav, Meran, Wade variation737940.0%53.4%
D48QGD semi-Slav, Meran, old main line12835.9%53.1%
D46QGD semi-Slav, Romih variation19836.4%63.6%
D45QGD semi-Slav, Rubinstein (anti-Meran) system2133.3%45.2%
D45QGD semi-Slav, Stoltz variation1390044.1%53.2%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)321843.8%54.3%
D44QGD semi-Slav, anti-Meran gambit98634.6%58.3%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation20835.1%65.6%
D44QGD semi-Slav, anti-Meran, Szabo variation3122.6%37.1%
D47QGD semi-Slav, neo-Meran (Lundin variation)37150.9%55.1%
D45QGD semi-Slav, stonewall defence1442.9%50.0%
D35QGD, 3...Nf615038.0%49.7%
D31QGD, 3.Nc3133239.8%54.6%
D50QGD, 4.Bg551439.7%58.8%
D53QGD, 4.Bg5 Be7134346.0%55.2%
D53QGD, 4.Bg5 Be7, 5.e3 O-O10644.3%52.4%
D51QGD, 4.Bg5 Nbd712143.0%53.7%
D37QGD, 4.Nf3790147.2%53.5%
D51QGD, 5...c624449.6%51.0%
D55QGD, 6.Nf320938.8%57.2%
D31QGD, Alapin variation1723.5%64.7%
D08QGD, Albin counter-gambit64838.1%55.3%
D09QGD, Albin counter-gambit, 5.g347242.6%56.5%
D08QGD, Albin counter-gambit, Alapin variation13148.9%55.7%
D08QGD, Albin counter-gambit, Balogh variation2330.4%76.1%
D08QGD, Albin counter-gambit, Janowski variation2123.8%73.8%
D08QGD, Albin counter-gambit, Krenosz variation1838.9%58.3%
D08QGD, Albin counter-gambit, Lasker trap616.7%58.3%
D51QGD, Alekhine variation812.5%56.3%
D54QGD, Anti-neo-orthodox variation15345.8%55.6%
D50QGD, Been-Koomen variation3650.0%47.2%
D52QGD, Cambridge Springs defence5147.1%49.0%
D52QGD, Cambridge Springs defence, 7.cd9530.5%55.3%
D52QGD, Cambridge Springs defence, Argentine variation2634.6%44.2%
D52QGD, Cambridge Springs defence, Bogoljubow variation55251.1%55.6%
D52QGD, Cambridge Springs defence, Capablanca variation3935.9%59.0%
D52QGD, Cambridge Springs defence, Rubinstein variation23940.6%55.4%
D52QGD, Cambridge Springs defence, Yugoslav variation56240.0%56.9%
D50QGD, Canal (Venice) variation1747.1%52.9%
D51QGD, Capablanca anti-Cambridge Springs variation5345.3%60.4%
D30QGD, Capablanca variation4533.3%58.9%
D30QGD, Capablanca-Duras variation50644.5%53.1%
D31QGD, Charousek (Petrosian) variation234246.5%54.3%
D07QGD, Chigorin defence130736.4%57.5%
D07QGD, Chigorin defence, Janowski variation17237.2%63.4%
D06QGD, Grau (Sahovic) defence33833.4%59.9%
D35QGD, Harrwitz attack28549.8%55.8%
D30QGD, Hastings variation90348.0%52.8%
D31QGD, Janowski variation37842.6%54.6%
D56QGD, Lasker defence61050.3%53.4%
D57QGD, Lasker defence, Bernstein variation3857.9%55.3%
D56QGD, Lasker defence, Teichmann variation13553.3%49.6%
D57QGD, Lasker defence, main line16952.7%55.3%
D53QGD, Lasker variation633.3%66.7%
D51QGD, Manhattan variation2650.0%55.8%
D06QGD, Marshall defence37842.1%55.4%
D55QGD, Neo-orthodox variation1250.0%58.3%
D55QGD, Neo-orthodox variation, 7.Bh423151.9%57.6%
D55QGD, Neo-orthodox variation, 7.Bxf645248.2%52.4%
D60QGD, Orthodox defence13435.8%53.7%
D63QGD, Orthodox defence12946.5%60.5%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)26951.7%54.5%
D63QGD, Orthodox defence, 7.Rc130944.0%56.3%
D66QGD, Orthodox defence, Bd3 line35748.2%56.9%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
D67QGD, Orthodox defence, Bd3 line, 11.O-O6835.3%66.2%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation6755.2%60.4%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation2937.9%63.8%
D60QGD, Orthodox defence, Botvinnik variation12740.9%53.5%
D63QGD, Orthodox defence, Capablanca variation540.0%60.0%
D63QGD, Orthodox defence, Pillsbury attack3754.1%62.2%
D60QGD, Orthodox defence, Rauzer variation12047.5%54.6%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)13951.1%55.0%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation3633.3%61.1%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation2941.4%41.4%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
D65QGD, Orthodox defence, Rubinstein attack, main line3650.0%58.3%
D61QGD, Orthodox defence, Rubinstein variation45746.6%53.3%
D63QGD, Orthodox defence, Swiss (Henneberger) variation15044.7%57.0%
D63QGD, Orthodox defence, Swiss, Karlsbad variation37944.9%54.6%
D68QGD, Orthodox defence, classical variation8450.0%57.1%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)5156.9%57.8%
D69QGD, Orthodox defence, classical, 13.de1752.9%55.9%
D55QGD, Petrosian variation41454.1%53.1%
D55QGD, Pillsbury attack250.0%75.0%
D38QGD, Ragozin variation646946.9%53.2%
D39QGD, Ragozin, Vienna variation192449.6%51.1%
D51QGD, Rochlin variation1346.2%46.2%
D50QGD, Semi-Tarrasch7852.6%51.9%
D40QGD, Semi-Tarrasch defence48342.4%54.6%
D40QGD, Semi-Tarrasch defence, Pillsbury variation9750.5%58.2%
D41QGD, Semi-Tarrasch with e337846.6%56.9%
D41QGD, Semi-Tarrasch, 5.cd88450.2%56.7%
D42QGD, Semi-Tarrasch, 7.Bd344947.0%54.7%
D41QGD, Semi-Tarrasch, Kmoch variation1560.0%43.3%
D50QGD, Semi-Tarrasch, Krause variation2100.0%50.0%
D40QGD, Semi-Tarrasch, Levenfish variation540.0%60.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1540.0%53.3%
D41QGD, Semi-Tarrasch, San Sebastian variation2937.9%77.6%
D40QGD, Semi-Tarrasch, symmetrical variation2748.1%53.7%
D30QGD, Stonewall variation450.0%75.0%
D32QGD, Tarrasch defence63545.7%54.0%
D32QGD, Tarrasch defence, 4.cd ed4831.3%44.8%
D32QGD, Tarrasch defence, Marshall gambit1442.9%57.1%
D32QGD, Tarrasch defence, Tarrasch gambit1957.9%44.7%
D34QGD, Tarrasch, Bogolyubov variation250.0%25.0%
D33QGD, Tarrasch, Folkestone (Swedish) variation25048.4%56.2%
D33QGD, Tarrasch, Prague variation22742.7%54.0%
D34QGD, Tarrasch, Prague variation, 7...Be722644.7%55.1%
D34QGD, Tarrasch, Prague variation, 9.Bg562946.7%58.8%
D34QGD, Tarrasch, Prague variation, Normal position83151.1%56.4%
D34QGD, Tarrasch, Reti variation4454.5%65.9%
D33QGD, Tarrasch, Schlechter-Rubinstein system6134.4%56.6%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%25.0%
D33QGD, Tarrasch, Wagner variation5954.2%55.9%
D32QGD, Tarrasch, von Hennig-Schara gambit13345.1%63.2%
D58QGD, Tartakower (Makagonov-Bondarevsky) system549447.2%52.1%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd528550.5%46.0%
D59QGD, Tartakower variation15148.3%46.0%
D30QGD, Vienna variation128653.2%52.3%
D37QGD, classical variation (5.Bf4)571746.7%55.0%
D35QGD, exchange variation47842.1%56.0%
D35QGD, exchange, Saemisch variation42448.6%53.8%
D35QGD, exchange, positional line142041.8%54.5%
D35QGD, exchange, positional line, 5...c6115044.5%56.3%
D36QGD, exchange, positional line, 6.Qc253943.4%55.5%
D31QGD, semi-Slav158240.1%53.8%
D31QGD, semi-Slav, Abrahams variation18836.2%43.6%
D31QGD, semi-Slav, Junge variation1233.3%33.3%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
D31QGD, semi-Slav, Marshall gambit144443.0%55.0%
D31QGD, semi-Slav, Noteboom variation39538.5%50.6%
D06QGD, symmetrical (Austrian) defence18145.9%60.5%
C40QP counter-gambit (elephant gambit)3250.0%65.6%
C40QP counter-gambit, Maroczy gambit540.0%80.0%
A50Queen's Indian accelerated62540.3%57.0%
A47Queen's Indian defence84137.6%50.8%
E12Queen's Indian defence83541.4%53.4%
E12Queen's Indian, 4.Nc3606441.0%53.2%
E12Queen's Indian, 4.Nc3, Botvinnik variation4628.3%48.9%
E13Queen's Indian, 4.Nc3, main line32636.2%53.1%
E14Queen's Indian, 4.e3227340.5%52.6%
E15Queen's Indian, 4.g3378148.4%55.2%
E15Queen's Indian, 4.g3 Bb741542.2%53.9%
E17Queen's Indian, 5.Bg2 Be75841.4%46.6%
E14Queen's Indian, Averbakh variation650.0%41.7%
E15Queen's Indian, Buerger variation6735.8%62.7%
E16Queen's Indian, Capablanca variation67743.6%57.1%
E17Queen's Indian, Euwe variation10553.3%54.3%
A47Queen's Indian, Marienbad system12341.5%52.4%
A47Queen's Indian, Marienbad system, Berg variation2347.8%54.3%
E12Queen's Indian, Miles variation192743.5%53.3%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1790842.0%56.5%
E17Queen's Indian, Opovcensky variation95340.6%55.6%
E12Queen's Indian, Petrosian system887143.8%54.3%
E16Queen's Indian, Riumin variation31738.5%59.0%
E15Queen's Indian, Rubinstein variation19735.0%60.2%
E16Queen's Indian, Yates variation53842.6%57.9%
E17Queen's Indian, anti-Queen's Indian system55142.6%54.0%
E17Queen's Indian, old main line, 6.O-O135143.7%57.8%
E18Queen's Indian, old main line, 7.Nc3217143.9%57.0%
E19Queen's Indian, old main line, 9.Qxc3159847.4%58.1%
A41Queen's Pawn314635.6%56.0%
D02Queen's bishop game244941.6%53.3%
D20Queen's gambit accepted133046.3%55.0%
D23Queen's gambit accepted7749.4%51.9%
D30Queen's gambit declined813745.1%55.3%
A40Queen's pawn384834.8%55.0%
A45Queen's pawn game432737.7%53.8%
A46Queen's pawn game571639.7%54.5%
A50Queen's pawn game126537.5%56.2%
D00Queen's pawn game138138.4%50.8%
D02Queen's pawn game754441.5%53.2%
D04Queen's pawn game141939.3%51.6%
D05Queen's pawn game113939.9%51.9%
E00Queen's pawn game65238.7%56.4%
E10Queen's pawn game619745.1%55.2%
D02Queen's pawn game, Chigorin variation77240.0%56.4%
D02Queen's pawn game, Krause variation74241.9%55.2%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation53239.7%54.2%
D05Queen's pawn game, Zukertort variation7946.8%57.6%
D00Queen's pawn, Anti-Veresov650.0%58.3%
A45Queen's pawn, Bronstein gambit1233.3%50.0%
A40Queen's pawn, Charlick (Englund) gambit3444.1%60.3%
D00Queen's pawn, Chigorin variation103534.7%51.9%
A40Queen's pawn, English defence49045.5%57.2%
A40Queen's pawn, Franco-Indian (Keres) defence203137.0%56.3%
A40Queen's pawn, Keres defence340642.4%56.3%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence34126.4%56.9%
D00Queen's pawn, Mason variation176538.9%53.1%
D00Queen's pawn, Mason variation, Steinitz counter-gambit88340.8%51.5%
E60Queen's pawn, Mengarini attack3935.9%61.5%
A46Queen's pawn, Torre attack226236.9%52.4%
A46Queen's pawn, Torre attack, Wagner gambit2429.2%47.9%
A46Queen's pawn, Yusupov-Rubinstein system124741.4%52.4%
D00Queen's pawn, stonewall attack8132.1%42.0%
A09Reti accepted52738.7%52.6%
A09Reti accepted, Keres variation6827.9%64.0%
A04Reti opening1266338.7%54.6%
A05Reti opening598437.3%53.0%
A06Reti opening110338.2%52.7%
A09Reti opening107239.5%54.2%
A04Reti v Dutch189332.9%57.3%
A04Reti, Herrstroem gambit20.0%100.0%
A05Reti, King's Indian attack206541.2%53.3%
A07Reti, King's Indian attack305941.7%53.0%
A08Reti, King's Indian attack82241.7%52.7%
A07Reti, King's Indian attack (Barcza system)819041.2%53.4%
A07Reti, King's Indian attack (with ...c5)27835.3%50.0%
A08Reti, King's Indian attack, French variation35338.8%49.7%
A07Reti, King's Indian attack, Keres variation107037.3%54.3%
A07Reti, King's Indian attack, Pachman system21141.7%52.6%
A05Reti, King's Indian attack, Reti-Smyslov variation15833.5%49.1%
A05Reti, King's Indian attack, Spassky's variation72043.3%51.3%
A07Reti, King's Indian attack, Yugoslav variation220640.7%53.2%
A04Reti, Lisitsin gambit deferred4628.3%68.5%
A06Reti, Nimzovich-Larsen attack450439.3%49.6%
A04Reti, Pirc-Lisitsin gambit16430.5%48.2%
A04Reti, Wade defence20.0%50.0%
A09Reti, advance variation172736.5%48.8%
A06Reti, old Indian attack19230.7%48.2%
B00Reversed Grob (Borg/Basman defence/macho Grob)5219.2%71.2%
D01Richter-Veresov attack93332.9%47.7%
D01Richter-Veresov attack, Richter variation2725.9%57.4%
D01Richter-Veresov attack, Veresov variation4240.5%48.8%
B06Robatsch (modern) defence967235.6%56.3%
B06Robatsch defence111336.1%58.8%
B07Robatsch defence, Geller's system79436.4%57.5%
B06Robatsch defence, Gurgenidze variation9634.4%63.0%
B06Robatsch defence, Pseudo-Austrian attack67236.6%53.7%
A41Robatsch defence, Rossolimo variation21934.7%52.5%
B06Robatsch defence, Two knights variation41832.5%59.6%
B06Robatsch defence, Two knights, Suttles variation115638.1%58.0%
B06Robatsch defence, three pawns attack22328.3%59.4%
C50Rousseau gambit333.3%50.0%
C70Ruy Lopez20137.3%53.5%
C60Ruy Lopez (Spanish opening)8432.1%57.7%
C78Ruy Lopez, ...b5 & ...d67436.5%60.1%
C78Ruy Lopez, 5.O-O150946.8%54.6%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C77Ruy Lopez, Anderssen variation221643.6%52.0%
C78Ruy Lopez, Archangelsk (counterthrust) variation205243.1%55.2%
C65Ruy Lopez, Berlin defence638341.2%52.1%
C65Ruy Lopez, Berlin defence, 4.O-O25642.2%59.0%
C66Ruy Lopez, Berlin defence, 4.O-O, d619746.7%59.4%
C65Ruy Lopez, Berlin defence, Anderssen variation250.0%75.0%
C65Ruy Lopez, Berlin defence, Beverwijk variation66539.5%57.5%
C67Ruy Lopez, Berlin defence, Cordel variation9537.9%60.0%
C65Ruy Lopez, Berlin defence, Duras variation2937.9%46.6%
C65Ruy Lopez, Berlin defence, Kaufmann variation4250.0%53.6%
C67Ruy Lopez, Berlin defence, Minckwitz variation5648.2%58.0%
C65Ruy Lopez, Berlin defence, Mortimer variation2951.7%46.6%
C65Ruy Lopez, Berlin defence, Nyholm attack11753.8%53.4%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation5841.4%56.9%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C67Ruy Lopez, Berlin defence, Winawer attack3333.3%68.2%
C67Ruy Lopez, Berlin defence, Zukertort variation2860.7%55.4%
C66Ruy Lopez, Berlin defence, hedgehog variation14252.8%57.4%
C67Ruy Lopez, Berlin defence, open variation546248.6%53.7%
C61Ruy Lopez, Bird's defence64037.7%56.6%
C61Ruy Lopez, Bird's defence, Paulsen variation944.4%66.7%
C70Ruy Lopez, Caro variation11443.0%57.5%
C70Ruy Lopez, Classical defence deferred12539.2%58.0%
C64Ruy Lopez, Cordel gambit9940.4%55.6%
C60Ruy Lopez, Cozio defence59140.3%53.6%
C70Ruy Lopez, Cozio defence deferred58442.5%54.8%
C60Ruy Lopez, Cozio defence, Paulsen variation7441.9%65.5%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)169439.8%49.7%
C70Ruy Lopez, Graz variation1266.7%58.3%
C60Ruy Lopez, Lucena defence1241.7%45.8%
C89Ruy Lopez, Marshall counter-attack66552.9%54.3%
C89Ruy Lopez, Marshall counter-attack, 11...c625446.5%55.1%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C89Ruy Lopez, Marshall, Kevitz variation3100.0%50.0%
C89Ruy Lopez, Marshall, main line, 12.d2d424040.8%62.5%
C89Ruy Lopez, Marshall, main line, 14...Qh354852.0%51.4%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
C78Ruy Lopez, Moeller defence80842.8%54.7%
C77Ruy Lopez, Morphy defence32143.0%54.8%
C77Ruy Lopez, Morphy defence, Duras variation8239.0%58.5%
C60Ruy Lopez, Nuernberg variation40.0%50.0%
C78Ruy Lopez, Rabinovich variation10.0%0.0%
C63Ruy Lopez, Schliemann defence58742.8%57.7%
C70Ruy Lopez, Schliemann defence deferred4337.2%60.5%
C63Ruy Lopez, Schliemann defence, Berger variation56045.0%57.0%
C74Ruy Lopez, Siesta, Kopayev variation20433.3%55.9%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)50139.5%55.1%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1872.2%58.3%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation3351.5%56.1%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation20238.6%62.4%
C88Ruy Lopez, Trajkovic counter-attack67242.1%52.2%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)11244.6%45.5%
C60Ruy Lopez, Vinogradov variation250.0%75.0%
C78Ruy Lopez, Wing attack1942.1%52.6%
C77Ruy Lopez, Wormald (Alapin) attack60842.8%53.0%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C86Ruy Lopez, Worrall attack3545.7%60.0%
C86Ruy Lopez, Worrall attack, sharp line34141.3%52.9%
C86Ruy Lopez, Worrall attack, solid line17339.9%51.2%
C64Ruy Lopez, classical (Cordel) defence39242.3%54.1%
C64Ruy Lopez, classical defence, 4.c341643.5%57.8%
C64Ruy Lopez, classical defence, Benelux variation 49940.9%55.9%
C64Ruy Lopez, classical defence, Boden variation1457.1%57.1%
C64Ruy Lopez, classical defence, Charousek variation1435.7%67.9%
C64Ruy Lopez, classical defence, Zaitsev variation4100.0%50.0%
C88Ruy Lopez, closed140942.2%53.3%
C96Ruy Lopez, closed (10...c5)76333.4%66.4%
C96Ruy Lopez, closed (8...Na5)4050.0%62.5%
C90Ruy Lopez, closed (with ...d6)128338.3%51.9%
C66Ruy Lopez, closed Berlin defence, Bernstein variation2445.8%60.4%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
C66Ruy Lopez, closed Berlin defence, Showalter variation7445.9%56.8%
C66Ruy Lopez, closed Berlin defence, Wolf variation6157.4%56.6%
C84Ruy Lopez, closed defence222342.5%52.2%
C88Ruy Lopez, closed, 7...O-O402642.1%52.9%
C88Ruy Lopez, closed, 7...d6, 8.d42433.3%25.0%
C88Ruy Lopez, closed, 8.c33842.1%57.9%
C91Ruy Lopez, closed, 9.d4134838.9%58.5%
C92Ruy Lopez, closed, 9.h345943.1%53.6%
C87Ruy Lopez, closed, Averbach variation48541.0%59.9%
C88Ruy Lopez, closed, Balla variation4637.0%55.4%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C91Ruy Lopez, closed, Bogolyubov variation415644.0%53.7%
C96Ruy Lopez, closed, Borisenko defence4540.0%57.8%
C94Ruy Lopez, closed, Breyer defence11338.1%58.0%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation81539.6%56.7%
C95Ruy Lopez, closed, Breyer, Gligoric variation6744.8%58.2%
C95Ruy Lopez, closed, Breyer, Simagin variation2540.0%56.0%
C97Ruy Lopez, closed, Chigorin defence88032.2%63.4%
C98Ruy Lopez, closed, Chigorin, 12...Nc615230.9%63.5%
C99Ruy Lopez, closed, Chigorin, 12...c5d492440.4%62.9%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)215739.4%57.2%
C96Ruy Lopez, closed, Keres (...Nd7) defence24537.6%66.1%
C92Ruy Lopez, closed, Keres (9...a5) variation2152.4%50.0%
C92Ruy Lopez, closed, Kholmov variation14232.4%64.1%
C90Ruy Lopez, closed, Lutikov variation4751.1%53.2%
C90Ruy Lopez, closed, Pilnik variation92136.0%52.2%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation34542.9%63.8%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C93Ruy Lopez, closed, Smyslov defence27140.6%59.0%
C90Ruy Lopez, closed, Suetin variation9537.9%57.9%
C88Ruy Lopez, closed, anti-Marshall 8.a4220641.2%53.5%
C84Ruy Lopez, closed, centre attack20951.2%47.6%
C68Ruy Lopez, exchange variation12539.2%53.2%
C69Ruy Lopez, exchange variation, 5.O-O125342.7%53.0%
C69Ruy Lopez, exchange variation, Alapin gambit40044.3%50.9%
C68Ruy Lopez, exchange, Alekhine variation3748.6%43.2%
C69Ruy Lopez, exchange, Bronstein variation86738.2%50.7%
C69Ruy Lopez, exchange, Gligoric variation98444.7%54.6%
C68Ruy Lopez, exchange, Keres variation20948.8%49.8%
C68Ruy Lopez, exchange, Romanovsky variation5032.0%52.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence63842.3%53.4%
C70Ruy Lopez, fianchetto defence deferred12248.4%57.0%
C77Ruy Lopez, four knights (Tarrasch) variation26245.4%55.5%
C71Ruy Lopez, modern Steinitz defence18941.8%55.3%
C74Ruy Lopez, modern Steinitz defence19031.1%61.8%
C75Ruy Lopez, modern Steinitz defence26243.1%52.9%
C72Ruy Lopez, modern Steinitz defence, 5.O-O98641.5%57.5%
C73Ruy Lopez, modern Steinitz defence, Alapin variation32834.5%50.5%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation25139.4%56.4%
C73Ruy Lopez, modern Steinitz defence, Richter variation27346.9%50.5%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation19529.2%59.2%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation60937.8%53.9%
C74Ruy Lopez, modern Steinitz defence, siesta variation13036.2%49.6%
C62Ruy Lopez, old Steinitz defence49136.9%55.7%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation2245.5%54.5%
C80Ruy Lopez, open (Tarrasch) defence7544.0%62.0%
C67Ruy Lopez, open Berlin defence, 5...Be711540.0%53.0%
C67Ruy Lopez, open Berlin defence, Showalter variation2634.6%48.1%
C67Ruy Lopez, open Berlin defence, l'Hermet variation15261.8%51.3%
C80Ruy Lopez, open, 6.d45939.0%44.9%
C80Ruy Lopez, open, 7.Bb351241.4%53.3%
C80Ruy Lopez, open, 8...Be6139137.9%44.0%
C83Ruy Lopez, open, 9...Be7, 10.Re14940.8%53.1%
C82Ruy Lopez, open, 9.c3933.3%72.2%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C82Ruy Lopez, open, Berlin variation2828.6%67.9%
C80Ruy Lopez, open, Bernstein variation110849.7%62.8%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2744.4%44.4%
C83Ruy Lopez, open, Breslau variation366.7%66.7%
C82Ruy Lopez, open, Dilworth variation19640.8%60.2%
C80Ruy Lopez, open, Friess attack1118.2%54.5%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
C81Ruy Lopez, open, Howell attack28949.5%53.8%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1233.3%50.0%
C82Ruy Lopez, open, Italian variation11651.7%62.9%
C83Ruy Lopez, open, Malkin variation1758.8%58.8%
C82Ruy Lopez, open, Motzko attack10848.1%59.3%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation1942.1%73.7%
C80Ruy Lopez, open, Riga variation1145.5%68.2%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
C82Ruy Lopez, open, St. Petersburg variation23343.8%64.8%
C80Ruy Lopez, open, Tartakower variation1361.5%46.2%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C83Ruy Lopez, open, classical defence26448.5%59.8%
A06Santasiere's folly22637.2%45.6%
A00Saragossa opening46729.6%51.0%
B01Scandinavian (centre counter) defence387439.8%57.7%
B01Scandinavian defence164439.6%58.5%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B01Scandinavian defence, Lasker variation14633.6%65.4%
B01Scandinavian gambit20542.9%55.1%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
B01Scandinavian, Icelandic gambit7045.7%57.1%
B01Scandinavian, Kiel variation728.6%85.7%
B01Scandinavian, Marshall variation74043.2%59.9%
B01Scandinavian, Mieses-Kotrvc gambit1353.8%50.0%
B01Scandinavian, Pytel-Wade variation352443.1%58.1%
B01Scandinavian, Richter variation1216.7%66.7%
C44Scotch gambit14441.0%56.6%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Scotch gambit, Benima defence6939.1%57.2%
C44Scotch gambit, Cochrane-Shumov defence1250.0%66.7%
C44Scotch gambit, Dubois-Reti defence41242.7%53.9%
C44Scotch gambit, Hanneken variation10.0%100.0%
C45Scotch game326143.3%54.2%
C44Scotch opening2050.0%50.0%
C45Scotch, Blackburne attack3043.3%51.7%
C45Scotch, Blumenfeld attack1637.5%31.3%
C45Scotch, Ghulam Kassim variation875.0%50.0%
C44Scotch, Goering gambit26442.0%54.0%
C44Scotch, Goering gambit, Bardeleben variation1540.0%46.7%
C45Scotch, Horwitz attack4235.7%56.0%
C44Scotch, Lolli variation2433.3%58.3%
C45Scotch, Meitner variation5151.0%51.0%
C45Scotch, Mieses variation191743.3%53.5%
C45Scotch, Paulsen attack2045.0%52.5%
C45Scotch, Potter variation77940.4%52.2%
C45Scotch, Pulling counter-attack520.0%70.0%
C44Scotch, Relfsson gambit ('MacLopez')1040.0%50.0%
C45Scotch, Romanishin variation8339.8%56.0%
C45Scotch, Schmidt variation92651.4%48.5%
C45Scotch, Steinitz variation4833.3%58.3%
C45Scotch, Tartakower variation2825.0%44.6%
A44Semi-Benoni (`blockade variation')43628.9%59.9%
B50Sicilian694340.1%52.6%
B54Sicilian145637.9%55.2%
B56Sicilian230339.3%53.2%
B20Sicilian defence370834.1%50.2%
B27Sicilian defence5534.5%62.7%
B30Sicilian defence414540.7%54.4%
B32Sicilian defence125039.0%55.4%
B33Sicilian defence64739.7%55.3%
B40Sicilian defence817539.1%54.0%
B44Sicilian defence41243.0%53.0%
B22Sicilian, 2.c3, Heidenfeld variation6225.8%45.2%
B27Sicilian, Acton extension425.0%87.5%
B22Sicilian, Alapin's variation (2.c3)857043.6%54.6%
B40Sicilian, Anderssen variation107940.4%57.1%
B21Sicilian, Andreaschek gambit1947.4%55.3%
B58Sicilian, Boleslavsky variation51237.5%48.4%
B59Sicilian, Boleslavsky variation, 7.Nb321048.6%52.9%
B58Sicilian, Boleslavsky, Louma variation5435.2%54.6%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack286539.9%55.0%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7262042.4%50.7%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit22040.9%58.2%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation119645.1%55.6%
B53Sicilian, Chekhover variation229242.2%52.0%
B53Sicilian, Chekhover, Zaitsev variation10432.7%59.6%
B32Sicilian, Flohr variation35237.2%58.4%
B20Sicilian, Gloria variation1421.4%46.4%
B21Sicilian, Grand Prix attack202934.6%52.4%
B23Sicilian, Grand Prix attack103737.0%49.3%
B23Sicilian, Grand Prix attack, Schofman variation16041.9%52.2%
B27Sicilian, Hungarian variation394939.8%57.7%
B41Sicilian, Kan variation27242.3%54.6%
B42Sicilian, Kan, 5.Bd3255739.1%58.1%
B43Sicilian, Kan, 5.Nc3420239.4%56.1%
B42Sicilian, Kan, Gipslis variation9038.9%63.9%
B41Sicilian, Kan, Maroczy bind (Reti variation)71837.7%58.7%
B41Sicilian, Kan, Maroczy bind - Bronstein variation3540.0%37.1%
B42Sicilian, Kan, Polugaievsky variation191338.2%54.9%
B42Sicilian, Kan, Swiss cheese variation34035.9%61.2%
B27Sicilian, Katalimov variation21840.8%58.5%
B20Sicilian, Keres variation (2.Ne2)133438.7%52.0%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation170741.0%57.1%
B32Sicilian, Labourdonnais-Loewenthal variation40238.8%57.0%
B57Sicilian, Magnus Smith trap1145.5%40.9%
B40Sicilian, Marshall variation825.0%75.0%
B90Sicilian, Najdorf418237.4%53.9%
B98Sicilian, Najdorf variation37129.4%57.5%
B95Sicilian, Najdorf, 6...e6159038.7%50.2%
B94Sicilian, Najdorf, 6.Bg5136938.6%53.2%
B93Sicilian, Najdorf, 6.f4205540.3%51.1%
B98Sicilian, Najdorf, 7...Be715234.9%55.6%
B99Sicilian, Najdorf, 7...Be7 main line68230.2%53.7%
B97Sicilian, Najdorf, 7...Qb6191234.9%47.3%
B96Sicilian, Najdorf, 7.f4182536.9%51.9%
B90Sicilian, Najdorf, Adams attack218640.5%53.8%
B98Sicilian, Najdorf, Browne variation5630.4%63.4%
B90Sicilian, Najdorf, Byrne (English) attack2340036.2%53.3%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2347.8%50.0%
B90Sicilian, Najdorf, Lipnitzky attack146737.7%50.3%
B92Sicilian, Najdorf, Opovcensky variation648741.8%53.4%
B97Sicilian, Najdorf, Poisoned pawn variation131546.2%50.7%
B96Sicilian, Najdorf, Polugayevsky variation12939.5%54.7%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation4219.0%52.4%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation131541.5%53.9%
B32Sicilian, Nimzovich variation3743.2%54.1%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)461041.6%56.3%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)660738.5%56.5%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation4548.9%48.9%
B29Sicilian, Nimzovich-Rubinstein variation125239.9%58.4%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit7259.7%53.5%
B28Sicilian, O'Kelly variation102236.9%58.3%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation142835.4%55.4%
B33Sicilian, Pelikan, Bird variation27336.3%64.7%
B33Sicilian, Pelikan, Chelyabinsk variation249537.3%57.7%
B40Sicilian, Pin variation (Sicilian counter-attack)3834.2%64.5%
B40Sicilian, Pin, Jaffe variation40.0%100.0%
B40Sicilian, Pin, Koch variation8523.5%76.5%
B54Sicilian, Prins (Moscow) variation86038.8%54.9%
B55Sicilian, Prins variation, Venice attack10339.8%51.0%
B27Sicilian, Quinteros variation8235.4%61.6%
B60Sicilian, Richter-Rauzer96936.0%58.5%
B62Sicilian, Richter-Rauzer, 6...e66642.4%59.1%
B60Sicilian, Richter-Rauzer, Bondarevsky variation4546.7%65.6%
B62Sicilian, Richter-Rauzer, Keres variation12031.7%49.2%
B60Sicilian, Richter-Rauzer, Larsen variation18830.9%61.2%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd269837.0%62.0%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation11638.8%49.6%
B62Sicilian, Richter-Rauzer, Podvebrady variation2445.8%35.4%
B63Sicilian, Richter-Rauzer, Rauzer attack17837.6%57.0%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7143238.4%56.8%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd465441.7%55.4%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f435038.6%57.6%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6614134.0%51.9%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf614128.4%58.9%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7329234.2%55.6%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be716435.4%56.1%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1241.7%62.5%
B62Sicilian, Richter-Rauzer, Richter attack714.3%50.0%
B84Sicilian, Scheveningen (Paulsen), classical variation437940.0%52.4%
B80Sicilian, Scheveningen variation144732.1%54.3%
B83Sicilian, Scheveningen, 6.Be262341.1%53.0%
B82Sicilian, Scheveningen, 6.f463236.4%56.6%
B80Sicilian, Scheveningen, English variation22034.5%55.0%
B81Sicilian, Scheveningen, Keres attack256034.5%60.2%
B82Sicilian, Scheveningen, Tal variation15834.2%64.6%
B80Sicilian, Scheveningen, Vitolins variation5644.6%50.9%
B85Sicilian, Scheveningen, classical15340.5%50.3%
B85Sicilian, Scheveningen, classical main line40746.2%56.8%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6450.0%50.0%
B85Sicilian, Scheveningen, classical, Maroczy system2634.6%55.8%
B84Sicilian, Scheveningen, classical, Nd7 system12933.3%50.8%
B80Sicilian, Scheveningen, fianchetto variation25730.4%51.8%
B21Sicilian, Smith-Morra gambit106640.3%47.8%
B86Sicilian, Sozin attack30244.7%53.1%
B87Sicilian, Sozin with ...a6 and ...b593037.2%49.7%
B89Sicilian, Sozin, 7.Be3116237.7%51.5%
B57Sicilian, Sozin, Benko variation147039.4%51.7%
B88Sicilian, Sozin, Fischer variation1650.0%50.0%
B88Sicilian, Sozin, Leonhardt variation72539.3%55.1%
B57Sicilian, Sozin, not Scheveningen32141.4%55.6%
B20Sicilian, Steinitz variation64438.5%50.9%
B27Sicilian, Stiletto (Althouse) variation450.0%25.0%
B33Sicilian, Sveshnikov variation167040.4%50.8%
B44Sicilian, Szen (`anti-Taimanov') variation104842.9%53.0%
B44Sicilian, Szen variation, Dely-Kasparov gambit3357.6%62.1%
B44Sicilian, Szen, hedgehog variation25241.3%50.8%
B47Sicilian, Taimanov (Bastrikov) variation466642.2%54.4%
B45Sicilian, Taimanov variation247038.5%56.8%
B46Sicilian, Taimanov variation397739.2%55.8%
B48Sicilian, Taimanov variation415637.9%56.4%
B49Sicilian, Taimanov variation81844.3%57.5%
B45Sicilian, Taimanov, American attack1942.1%42.1%
B89Sicilian, Velimirovic attack85834.3%51.9%
B56Sicilian, Venice attack8537.6%58.8%
B39Sicilian, accelerated fianchetto, Breyer variation72341.6%58.3%
B36Sicilian, accelerated fianchetto, Gurgenidze variation37048.6%60.5%
B36Sicilian, accelerated fianchetto, Maroczy bind120745.5%58.4%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg722943.7%55.9%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3125342.9%58.2%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
B34Sicilian, accelerated fianchetto, exchange variation3839.5%48.7%
B34Sicilian, accelerated fianchetto, modern variation62439.1%53.2%
B35Sicilian, accelerated fianchetto, modern variation with Bc4256143.7%53.8%
B23Sicilian, chameleon variation101335.9%57.1%
B58Sicilian, classical25842.6%49.2%
B23Sicilian, closed521237.3%51.6%
B24Sicilian, closed69037.0%51.1%
B25Sicilian, closed38635.2%50.3%
B23Sicilian, closed, 2...Nc6278039.9%52.6%
B26Sicilian, closed, 6.Be384233.8%50.1%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)8331.3%49.4%
B25Sicilian, closed, 6.f456039.1%49.4%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)4645.7%59.8%
B23Sicilian, closed, Korchnoi variation25847.7%50.2%
B24Sicilian, closed, Smyslov variation2729.6%59.3%
B70Sicilian, dragon variation108443.7%52.1%
B72Sicilian, dragon, 6.Be322733.5%51.5%
B71Sicilian, dragon, Levenfish variation44736.5%52.7%
B71Sicilian, dragon, Levenfish; Flohr variation5240.4%58.7%
B75Sicilian, dragon, Yugoslav attack51932.6%57.7%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O51629.3%56.7%
B79Sicilian, dragon, Yugoslav attack, 12.h41625.0%62.5%
B76Sicilian, dragon, Yugoslav attack, 7...O-O42635.4%54.3%
B77Sicilian, dragon, Yugoslav attack, 9...Bd726838.8%56.7%
B77Sicilian, dragon, Yugoslav attack, 9.Bc415637.2%55.1%
B77Sicilian, dragon, Yugoslav attack, Byrne variation1844.4%66.7%
B76Sicilian, dragon, Yugoslav attack, Rauser variation117434.2%62.8%
B72Sicilian, dragon, classical attack16842.9%55.4%
B73Sicilian, dragon, classical, 8.O-O46947.5%53.6%
B74Sicilian, dragon, classical, 9.Nb356049.3%49.1%
B74Sicilian, dragon, classical, Alekhine variation2951.7%63.8%
B72Sicilian, dragon, classical, Amsterdam variation6529.2%48.5%
B72Sicilian, dragon, classical, Grigoriev variation5747.4%50.0%
B72Sicilian, dragon, classical, Nottingham variation5743.9%53.5%
B74Sicilian, dragon, classical, Reti-Tartakower variation10245.1%53.9%
B73Sicilian, dragon, classical, Richter variation18549.7%57.8%
B74Sicilian, dragon, classical, Spielmann variation1030.0%55.0%
B73Sicilian, dragon, classical, Zollner gambit1233.3%41.7%
B83Sicilian, modern Scheveningen57443.7%50.4%
B83Sicilian, modern Scheveningen, main line60244.9%53.0%
B83Sicilian, modern Scheveningen, main line with Nb310736.4%55.6%
B20Sicilian, wing gambit10333.0%44.7%
B50Sicilian, wing gambit deferred3534.3%42.9%
B20Sicilian, wing gambit, Carlsbad variation3444.1%48.5%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
B20Sicilian, wing gambit, Marshall variation9628.1%56.8%
B00St. George (Baker) defence5332.1%59.4%
C00St. George defence20946.4%59.1%
C44Tayler opening425.0%37.5%
A06Tennison (Lemberg, Zukertort) gambit4240.5%51.2%
C46Three knights game37331.1%59.8%
C46Three knights, Schlechter variation4639.1%54.3%
C46Three knights, Steinitz variation25627.3%57.0%
C46Three knights, Steinitz, Rosenthal variation2948.3%48.3%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
D03Torre attack (Tartakower variation)94138.9%50.8%
A45Trompovsky attack (Ruth, Opovcensky opening)763035.3%53.2%
C55Two knights defence13437.3%51.5%
C56Two knights defence16147.8%49.4%
C57Two knights defence2025.0%42.5%
C58Two knights defence39237.5%57.0%
C59Two knights defence21239.2%48.8%
C55Two knights defence (Modern bishop's opening)198239.5%55.8%
C58Two knights defence, Blackburne variation425.0%62.5%
C58Two knights defence, Bogolyubov variation9632.3%43.2%
C56Two knights defence, Canal variation540.0%40.0%
C58Two knights defence, Colman variation8632.6%45.3%
C57Two knights defence, Fegatello attack9222.8%52.7%
C57Two knights defence, Fegatello attack, Leonhardt variation922.2%55.6%
C57Two knights defence, Fegatello attack, Polerio defence40.0%100.0%
C57Two knights defence, Fritz variation10339.8%50.0%
C57Two knights defence, Fritz, Gruber variation1637.5%43.8%
C59Two knights defence, Goering variation812.5%31.3%
C55Two knights defence, Keidanz variation2100.0%50.0%
C58Two knights defence, Kieseritsky variation4531.1%57.8%
C57Two knights defence, Lolli attack2133.3%59.5%
C58Two knights defence, Paoli variation1030.0%75.0%
C55Two knights defence, Perreux variation4656.5%50.0%
C57Two knights defence, Pincus variation1040.0%30.0%
C59Two knights defence, Steinitz variation41733.1%48.0%
C57Two knights defence, Ulvestad variation11451.8%46.9%
C57Two knights defence, Wilkes Barre (Traxler) variation13634.6%59.2%
C58Two knights defence, Yankovich variation1931.6%26.3%
C55Two knights, Max Lange attack4431.8%61.4%
C55Two knights, Max Lange attack, Krause variation450.0%75.0%
C55Two knights, Max Lange attack, Loman defence425.0%37.5%
C55Two knights, Max Lange attack, Marshall variation922.2%66.7%
C55Two knights, Max Lange attack, Rubinstein variation1100.0%50.0%
C55Two knights, Max Lange attack, Schlechter variation3562.9%51.4%
C55Two knights, Max Lange attack, Steinitz variation1741.2%67.6%
A00Van't Kruijs opening62040.2%50.9%
C25Vienna gambit17835.4%54.2%
C29Vienna gambit66937.2%49.7%
C29Vienna gambit, Bardeleben variation1931.6%52.6%
C29Vienna gambit, Breyer variation22335.0%52.0%
C29Vienna gambit, Kaufmann variation1241.7%70.8%
C29Vienna gambit, Paulsen attack5143.1%52.9%
C29Vienna gambit, Steinitz variation4240.5%46.4%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C25Vienna game45235.6%57.6%
C26Vienna game51941.4%54.0%
C27Vienna game25842.2%52.5%
C28Vienna game68540.1%51.9%
C25Vienna game, Max Lange defence4744.7%52.1%
C27Vienna, Alekhine variation3839.5%48.7%
C26Vienna, Falkbeer variation12335.8%56.9%
C26Vienna, Mengarini variation3557.1%48.6%
C25Vienna, Paulsen variation22832.9%56.8%
C26Vienna, Paulsen-Mieses variation92339.9%52.7%
C25Vienna, Pierce gambit2725.9%53.7%
C25Vienna, Steinitz gambit250.0%25.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation10.0%100.0%
C27Vienna, `Frankenstein-Dracula' variation1910.5%78.9%
A56Vulture defence333.3%83.3%
A00Ware (Meadow Hay) opening3033.3%40.0%
A43Woozle defence80.0%75.0%
B12de Bruycker defence258.0%56.0%

Created in 2005-2013 by CCRL team
Last games added on May 8, 2021