CCRL 40/4
Downloads and Statistics
January 13, 2018
Testing summary:
Total: 1'626'652 games
played by 1'934 programs
21844 CPU days (X2 4600+)

White wins: 635'703 (39.1%)
Black wins: 517'026 (31.8%)
Draws: 473'923 (29.1%)
White score: 53.6%

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
C52Evans gambit, Leonhardt variation2100.0%50.0%
C55Giuoco piano1100.0%50.0%
C54Giuoco Piano, Greco variation1100.0%50.0%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
D12QGD Slav, Landau variation1100.0%50.0%
C37KGA, Lolli gambit (wild Muzio gambit)1100.0%50.0%
C89Ruy Lopez, Marshall, main line, Spassky variation1100.0%50.0%
C64Ruy Lopez, classical defence, Boden variation1100.0%50.0%
C55Two knights defence, Keidanz variation1100.0%50.0%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack1100.0%50.0%
C42Petrov, classical attack, Krause variation1100.0%50.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation1100.0%50.0%
C25Vienna, Steinitz gambit, Zukertort defence1100.0%50.0%
A51Budapest, Fajarowicz, Steiner variation1100.0%50.0%
C15French, Winawer, Alekhine gambit, Alatortsev variation1100.0%50.0%
A80Dutch, Von Pretzel gambit1100.0%50.0%
C32KGD, Falkbeer, Keres variation1100.0%50.0%
C59Two knights defence, Knorre variation1100.0%50.0%
C32KGD, Falkbeer, main line, 7...Bf5977.8%38.9%
D26QGA, classical, Furman variation475.0%37.5%
C49Four knights, symmetrical, Blake variation475.0%62.5%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)771.4%64.3%
C51Evans gambit, 5...Be7771.4%35.7%
C67Ruy Lopez, Berlin defence, Winawer attack1070.0%45.0%
C80Ruy Lopez, open, Berger variation666.7%33.3%
C67Ruy Lopez, Berlin defence, Pillsbury variation366.7%33.3%
C77Ruy Lopez, Wormald attack, Gruenfeld variation366.7%66.7%
C30KGD, classical, Heath variation366.7%33.3%
C12French, MacCutcheon, Duras variation366.7%66.7%
C32KGD, Falkbeer, Reti variation366.7%33.3%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit1163.6%68.2%
C12French, MacCutcheon, Grigoriev variation862.5%56.3%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation2161.9%40.5%
C46Three knights, Steinitz, Rosenthal variation1361.5%61.5%
C44Ponziani, Romanishin variation1060.0%60.0%
B05Alekhine's defence, modern, Alekhine variation560.0%50.0%
A66Benoni, pawn storm variation560.0%70.0%
D69QGD, Orthodox defence, classical, 13.de2458.3%50.0%
C45Scotch, Blackburne attack2157.1%52.4%
C67Ruy Lopez, Berlin defence, Zukertort variation1457.1%42.9%
D67QGD, Orthodox defence, Bd3 line, Janowski variation757.1%42.9%
D55QGD, Neo-orthodox variation757.1%57.1%
C17French, Winawer, advance, Rauzer variation757.1%42.9%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence1656.3%59.4%
E72King's Indian, Pomar system1353.8%57.7%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1752.9%61.8%
C39KGA, Kieseritsky, Rice gambit1952.6%26.3%
B45Sicilian, Taimanov, American attack1952.6%42.1%
B88Sicilian, Sozin, Fischer variation4250.0%51.2%
D41QGD, Semi-Tarrasch, Kmoch variation2850.0%60.7%
C90Ruy Lopez, closed, Lutikov variation2650.0%51.9%
D50QGD, Semi-Tarrasch2650.0%59.6%
C53Giuoco Piano, Anderssen variation2250.0%52.3%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation1450.0%53.6%
D22QGA, Alekhine defence, Alatortsev variation1050.0%65.0%
C80Ruy Lopez, open, Friess attack850.0%37.5%
B05Alekhine's defence, modern, Vitolins attack850.0%25.0%
C41Philidor, Hanham, Delmar variation850.0%75.0%
B72Sicilian, dragon, classical, Grigoriev variation850.0%62.5%
C67Ruy Lopez, Berlin defence, Rio de Janeiro variation850.0%75.0%
E23Nimzo-Indian, Spielmann, San Remo variation650.0%58.3%
C14French, classical, Tarrasch variation650.0%75.0%
C55Two knights, Max Lange attack, Marshall variation450.0%50.0%
A66Benoni, Mikenas variation450.0%50.0%
C52Evans gambit, Alapin-Steinitz variation450.0%75.0%
D30QGD, Spielmann variation450.0%75.0%
C12French, MacCutcheon, Tartakower variation450.0%50.0%
C14French, classical, Stahlberg variation450.0%75.0%
E08Catalan, closed, Zagoryansky variation450.0%75.0%
C58Two knights defence, Blackburne variation450.0%75.0%
C31KGD, Falkbeer, Rubinstein variation450.0%50.0%
D31QGD, semi-Slav, Koomen variation450.0%50.0%
C37KGA, MacDonnell gambit250.0%75.0%
B03Alekhine's defence, four pawns attack, Tartakower variation250.0%75.0%
D50QGD, Semi-Tarrasch, Krause variation250.0%25.0%
C33KGA, Lopez-Gianutio counter-gambit, Hein variation250.0%75.0%
B01Scandinavian, Anderssen counter-attack250.0%75.0%
D08QGD, Albin counter-gambit, Krenosz variation250.0%75.0%
C53Giuoco Piano, Mestel variation250.0%75.0%
B20Sicilian, wing gambit, Santasiere variation250.0%75.0%
C52Evans gambit, Levenfish variation250.0%25.0%
C33KGA, bishop's gambit, McDonnell attack250.0%75.0%
A46Doery defence250.0%25.0%
D52QGD, Cambridge Springs defence7749.4%48.1%
C66Ruy Lopez, closed Berlin defence, Showalter variation6349.2%59.5%
D99Gruenfeld defence, Smyslov, Yugoslav variation5149.0%59.8%
E51Nimzo-Indian, 4.e3, Ragozin variation5149.0%57.8%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation11348.7%63.3%
B15Caro-Kann, Alekhine gambit2948.3%55.2%
C56Two knights defence, Canal variation2748.1%42.6%
D26QGA, classical, Steinitz variation12147.9%60.3%
D59QGD, Tartakower variation19346.6%41.5%
D63QGD, Orthodox defence, Pillsbury attack2445.8%43.8%
E78King's Indian, Four pawns attack, with Be2 and Nf32245.5%59.1%
B24Sicilian, closed, Smyslov variation1145.5%68.2%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation1145.5%40.9%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation4045.0%60.0%
C78Ruy Lopez, Wing attack2045.0%62.5%
E79King's Indian, Four pawns attack, main line12644.4%57.1%
C49Four knights, Nimzovich (Paulsen) variation7244.4%54.2%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1844.4%50.0%
B21Sicilian, Andreaschek gambit1844.4%61.1%
E30Nimzo-Indian, Leningrad, ...b5 gambit3444.1%42.6%
C54Giuoco Piano, Moeller (Therkatz) attack2544.0%38.0%
C67Ruy Lopez, Berlin defence, Cordel variation3743.2%51.4%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc337343.2%54.3%
C95Ruy Lopez, closed, Breyer, Simagin variation7742.9%63.0%
D21QGA, Ericson variation2842.9%53.6%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation742.9%35.7%
B18Caro-Kann, classical, Maroczy attack742.9%64.3%
A81Dutch, Leningrad, Karlsbad variation742.9%64.3%
C31KGD, Falkbeer, Morphy gambit742.9%64.3%
C57Two knights defence, Pincus variation742.9%64.3%
E25Nimzo-Indian, Saemisch, Romanovsky variation15042.7%50.7%
C67Ruy Lopez, Berlin defence, Rosenthal variation4042.5%53.8%
C49Four knights, symmetrical, Capablanca variation3342.4%57.6%
D67QGD, Orthodox defence, Bd3 line5942.4%51.7%
C49Four knights, double Ruy Lopez31242.3%56.4%
C89Ruy Lopez, Marshall, main line, 14...Qh382142.1%48.8%
D28QGA, classical, 7.Qe213142.0%55.3%
D80Gruenfeld defence81841.7%53.5%
D53QGD, 4.Bg5 Be7, 5.e3 O-O2441.7%50.0%
B44Sicilian, Szen variation, Dely-Kasparov gambit2441.7%54.2%
C12French, MacCutcheon, advance variation1241.7%54.2%
C15French, Winawer, Kondratiyev variation1241.7%62.5%
E37Nimzo-Indian, classical, San Remo variation1241.7%54.2%
C48Four knights, Rubinstein counter-gambit, exchange variation13041.5%48.5%
C74Ruy Lopez, modern Steinitz defence6541.5%56.2%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)26841.4%50.2%
C11French, Steinitz, Gledhill attack5141.2%53.9%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation3441.2%52.9%
D70Neo-Gruenfeld (Kemeri) defence15141.1%53.6%
E15Queen's Indian, 4.g3180741.0%55.2%
D71Neo-Gruenfeld, 5.cd20541.0%56.1%
D49QGD semi-Slav, Meran, Rabinovich variation11340.7%61.1%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd33240.7%52.3%
C66Ruy Lopez, closed Berlin defence, Wolf variation12840.6%55.5%
B02Alekhine's defence, Two pawns' (Lasker's) attack13840.6%47.1%
D73Neo-Gruenfeld, 5.Nf3121540.3%53.3%
E29Nimzo-Indian, Saemisch, Capablanca variation12940.3%50.4%
C66Ruy Lopez, Berlin defence, 4.O-O, d610240.2%52.5%
B85Sicilian, Scheveningen, classical main line70540.0%54.0%
D14QGD Slav, exchange, Trifunovic variation20540.0%50.2%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)17540.0%58.3%
C44Ponziani, Steinitz variation10540.0%53.3%
C41Philidor, Nimzovich, Larobok variation5040.0%34.0%
D94Gruenfeld with e3 Bd33040.0%60.0%
D08QGD, Albin counter-gambit, Alapin variation2540.0%60.0%
C33KGA, Breyer gambit2040.0%30.0%
C70Ruy Lopez, fianchetto defence deferred1540.0%73.3%
C53Giuoco Piano, LaBourdonnais variation1540.0%60.0%
C20KP, Napoleon's opening1540.0%53.3%
C45Scotch, Blumenfeld attack1040.0%20.0%
C52Evans gambit, Lasker defence1040.0%50.0%
C23Bishop's opening, Lewis gambit540.0%40.0%
C33KGA, bishop's gambit, Ruy Lopez defence540.0%40.0%
C31KGD, Falkbeer, 3...e4540.0%60.0%
C49Four knights, symmetrical, Tarrasch variation540.0%60.0%
A04Reti, Wade defence540.0%80.0%
C41Philidor, Philidor counter-gambit, del Rio attack540.0%60.0%
C39KGA, Kieseritsky, Paulsen defence540.0%40.0%
C58Two knights defence, Yankovich variation540.0%40.0%
B03Alekhine's defence, exchange, Karpov variation540.0%40.0%
D34QGD, Tarrasch, Bogolyubov variation540.0%20.0%
C25Vienna, Steinitz gambit540.0%60.0%
D30QGD, Vienna variation104439.9%52.5%
C45Scotch, Schmidt variation99939.8%50.7%
D49QGD semi-Slav, Meran, Sozin variation41239.8%49.0%
C49Four knights, symmetrical, Maroczy system8839.8%51.7%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd712639.7%55.6%
C67Ruy Lopez, Berlin defence, Minckwitz variation5339.6%63.2%
C42Petrov, classical attack, Mason variation9439.4%63.3%
B59Sicilian, Boleslavsky variation, 7.Nb315539.4%53.9%
E92King's Indian, Andersson variation42039.3%52.7%
C82Ruy Lopez, open, Motzko attack8439.3%51.8%
C44Ponziani, Leonhardt variation5639.3%50.0%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc42839.3%55.4%
B85Sicilian, Scheveningen, classical24739.3%52.8%
B14Caro-Kann, Panov-Botvinnik attack, 5...g645139.2%54.2%
D95Gruenfeld with e3 & Qb36939.1%50.0%
C80Ruy Lopez, open, Schlechter defence2339.1%32.6%
C80Ruy Lopez, open (Tarrasch) defence12339.0%49.6%
C83Ruy Lopez, open, classical defence18538.9%57.8%
D16QGD Slav, Soultanbeieff variation25038.8%56.6%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3291638.8%57.2%
C11French, Henneberger variation3138.7%32.3%
A16English, Anglo-Gruenfeld, Smyslov defense7538.7%59.3%
D55QGD, Petrosian variation46438.6%52.7%
D87Gruenfeld, exchange, Seville variation17938.5%65.6%
C46Three knights, Schlechter variation1338.5%65.4%
C29Vienna gambit, Kaufmann variation1338.5%65.4%
C51Evans gambit, Morphy attack1338.5%57.7%
D34QGD, Tarrasch, Reti variation6038.3%54.2%
D34QGD, Tarrasch, Prague variation, 9.Bg5111438.3%57.7%
E02Catalan, open, 5.Qa49438.3%59.6%
C66Ruy Lopez, closed Berlin defence, Bernstein variation3438.2%45.6%
D93Gruenfeld with Bf4 e367538.2%52.9%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation8938.2%56.2%
C82Ruy Lopez, open, St. Petersburg variation27838.1%59.4%
B72Sicilian, dragon, classical, Amsterdam variation6338.1%44.4%
C51Evans gambit declined2138.1%42.9%
C49Four knights, Janowski variation2138.1%38.1%
B36Sicilian, accelerated fianchetto, Gurgenidze variation36038.1%53.5%
A39English, symmetrical, main line with d4118038.1%55.0%
C96Ruy Lopez, closed, Keres (...Nd7) defence32438.0%61.0%
C88Ruy Lopez, closed, Balla variation2937.9%63.8%
C41Philidor, Nimzovich variation2937.9%53.4%
D57QGD, Lasker defence, Bernstein variation2937.9%50.0%
A03Bird's opening, Lasker variation2937.9%50.0%
C81Ruy Lopez, open, Howell attack9537.9%57.9%
D40QGD, Semi-Tarrasch defence, Pillsbury variation4537.8%52.2%
C94Ruy Lopez, closed, Breyer defence12237.7%53.3%
C01French, exchange, Svenonius variation6137.7%58.2%
D31QGD, Janowski variation19937.7%55.5%
C66Ruy Lopez, Berlin defence, hedgehog variation15437.7%53.2%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd554837.6%51.1%
D94Gruenfeld, Opovcensky variation20537.6%50.0%
C29Vienna gambit, Breyer variation12837.5%56.3%
B18Caro-Kann, classical, Flohr variation8837.5%58.5%
C45Scotch, Tartakower variation1637.5%56.3%
E21Nimzo-Indian, three knights, Euwe variation837.5%56.3%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd384237.4%54.8%
C44Ponziani, Caro variation11337.2%48.7%
C60Ruy Lopez, Cozio defence, Paulsen variation3537.1%52.9%
C09French, Tarrasch, open variation, main line218537.1%55.8%
D79Neo-Gruenfeld, 6.O-O, main line83437.1%53.1%
E53Nimzo-Indian, 4.e3, main line with ...c5153937.0%51.5%
A25English, closed, Taimanov variation2737.0%44.4%
B55Sicilian, Prins variation, Venice attack11937.0%56.3%
D42QGD, Semi-Tarrasch, 7.Bd362636.9%57.9%
C57Two knights defence, Fegatello attack7636.8%46.1%
C42Petrov, classical attack, Berger variation1936.8%55.3%
C60Ruy Lopez, Nuernberg variation1936.8%44.7%
B05Alekhine's defence, modern, Panov variation1936.8%65.8%
D32QGD, Tarrasch defence, Marshall gambit1936.8%50.0%
B73Sicilian, dragon, classical, Richter variation20136.8%48.8%
D85Gruenfeld, modern exchange variation745436.8%53.5%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation10636.8%49.5%
D26QGA, classical variation, 6.O-O40836.8%57.8%
E25Nimzo-Indian, Saemisch variation12036.7%53.3%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation3036.7%41.7%
C08French, Tarrasch, open, 4.ed ed314036.7%53.0%
C68Ruy Lopez, exchange, Keres variation25136.7%52.2%
B53Sicilian, Chekhover variation93936.6%49.6%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)8236.6%59.8%
A52Budapest, Rubinstein variation71436.6%58.8%
A10English, Adorjan defence53936.5%51.7%
E17Queen's Indian, Euwe variation10436.5%60.6%
D39QGD, Ragozin, Vienna variation146736.5%50.7%
D41QGD, Semi-Tarrasch with e334636.4%54.6%
C47Four knights, Scotch, 4...exd478636.4%50.9%
C47Four knights, Scotch variation4436.4%61.4%
C45Scotch, Horwitz attack3336.4%54.5%
B00Corn stalk defence1136.4%81.8%
A38English, symmetrical, main line with b31136.4%36.4%
C80Ruy Lopez, open, Tartakower variation1136.4%63.6%
A30English, symmetrical, hedgehog, flexible formation58136.3%56.9%
A06Santasiere's folly13536.3%45.6%
A14English, Symmetrical, Keres defence89036.3%55.0%
A94Dutch, stonewall with Ba318236.3%53.3%
D68QGD, Orthodox defence, classical variation13836.2%54.3%
A17English, Queens Indian, Romanishin variation4736.2%47.9%
D60QGD, Orthodox defence, Botvinnik variation23336.1%53.2%
B03Alekhine's defence, four pawns attack, fianchetto variation5036.0%64.0%
A95Dutch, stonewall: Chekhover variation5036.0%56.0%
C00French, Steinitz attack5036.0%52.0%
C80Ruy Lopez, open, Bernstein variation95636.0%58.2%
D27QGA, classical, 6...a6491336.0%53.7%
A97Dutch, Ilyin-Genevsky, Winter variation18135.9%64.9%
D52QGD, Cambridge Springs defence, Capablanca variation3935.9%48.7%
B13Caro-Kann, Panov-Botvinnik, normal variation24835.9%49.0%
E85King's Indian, Saemisch, orthodox variation5335.8%57.5%
B83Sicilian, modern Scheveningen, main line70335.8%52.6%
E46Nimzo-Indian, 4.e3 O-O19035.8%51.1%
D17QGD Slav, Czech defence88435.7%53.8%
D85Gruenfeld, exchange variation281335.7%52.7%
D55QGD, Neo-orthodox variation, 7.Bxf629435.7%51.5%
B73Sicilian, dragon, classical, 8.O-O22435.7%55.4%
B15Caro-Kann, Forgacs variation11235.7%55.4%
C45Scotch, Meitner variation4235.7%53.6%
C33KGA, bishop's gambit, Cozio (Morphy) defence2835.7%39.3%
C10French, Marshall variation1435.7%67.9%
B98Sicilian, Najdorf, Goteborg (Argentine) variation1435.7%46.4%
B01Scandinavian defence, Gruenfeld variation1435.7%53.6%
B36Sicilian, accelerated fianchetto, Maroczy bind142035.7%55.9%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc211035.7%53.7%
D94Gruenfeld, Smyslov defence25535.7%52.7%
D12QGD Slav, Amsterdam variation7335.6%47.9%
C49Four knights13235.6%50.4%
A14English, Neo-Catalan declined108735.6%52.7%
D30QGD, Hastings variation75035.6%50.6%
C20KP, Lopez opening6235.5%45.2%
C65Ruy Lopez, Berlin defence, Duras variation3135.5%46.8%
D45QGD semi-Slav, Rubinstein (anti-Meran) system3135.5%59.7%
A33English, symmetrical variation400335.4%52.2%
B71Sicilian, dragon, Levenfish variation7935.4%46.8%
C48Four knights, Rubinstein counter-gambit, Henneberger variation4835.4%61.5%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit6535.4%56.2%
A78Benoni, classical with ...Re8 and ...Na68535.3%52.9%
B73Sicilian, dragon, classical, Zollner gambit1735.3%23.5%
C57Two knights defence, Fritz, Gruber variation1735.3%52.9%
D41QGD, Semi-Tarrasch, 5.cd92135.3%57.1%
D08QGD, Albin counter-gambit20735.3%53.9%
C65Ruy Lopez, Berlin defence, Nyholm attack8835.2%54.0%
B58Sicilian, classical73635.2%52.0%
C70Ruy Lopez, Cozio defence deferred14535.2%52.8%
C45Scotch, Potter variation27335.2%47.6%
B10Caro-Kann, Hillbilly attack3735.1%58.1%
C26Vienna, Mengarini variation3735.1%58.1%
D53QGD, 4.Bg5 Be761235.1%56.5%
C49Four knights, symmetrical, Metger unpin49035.1%52.4%
D94Gruenfeld, 5.e373835.1%58.1%
A12English, Torre defensive system36535.1%51.8%
A38English, symmetrical, main line with d315735.0%51.3%
D90Gruenfeld, Flohr variation29735.0%49.5%
D65QGD, Orthodox defence, Rubinstein attack, main line2035.0%42.5%
C10French, Rubinstein, Capablanca line2035.0%52.5%
C42Petrov, classical attack, Jaenisch variation341235.0%56.3%
C89Ruy Lopez, Marshall counter-attack, 11...c692234.9%48.7%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7148134.9%50.5%
A34English, symmetrical, three knights system237234.9%52.4%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation4334.9%54.7%
E21Nimzo-Indian, three knights, Korchnoi variation4334.9%61.6%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation295534.8%53.5%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence47234.7%53.0%
D22QGA, Haberditz variation21634.7%59.0%
C41Philidor, Hanham variation7234.7%64.6%
D19QGD Slav, Dutch variation, main line48134.7%52.1%
C50Hungarian defence12134.7%54.5%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6118434.6%55.6%
C23Bishop's opening, Philidor counter-attack10434.6%59.6%
C07French, Tarrasch, Eliskases variation7834.6%48.1%
A21English, Keres variation2634.6%44.2%
A01Nimzovich-Larsen attack, Polish variation2634.6%51.9%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg732734.6%52.8%
D80Gruenfeld, Stockholm variation57734.5%50.0%
E06Catalan, closed, 5.Nf3628734.5%54.2%
A22English, Bremen, reverse dragon161534.4%53.2%
C67Ruy Lopez, open Berlin defence, l'Hermet variation9334.4%45.2%
D90Gruenfeld, Three knights variation69834.4%53.7%
C42Petrov, classical attack, Chigorin variation102134.4%53.8%
D89Gruenfeld, exchange, Sokolsky variation6434.4%39.1%
D87Gruenfeld, exchange, Spassky variation67834.4%57.3%
B56Sicilian, Venice attack64634.4%63.2%
B06Robatsch defence, Two knights, Suttles variation245934.4%58.2%
C69Ruy Lopez, exchange, Gligoric variation58834.4%53.7%
D26QGA, classical variation130234.3%54.6%
D28QGA, classical, 7...b527134.3%55.2%
C67Ruy Lopez, Berlin defence, open variation763634.3%52.6%
B13Caro-Kann, exchange, Rubinstein variation21034.3%55.7%
A59Benko gambit, main line93434.3%62.3%
B35Sicilian, accelerated fianchetto, modern variation with Bc4451334.3%53.6%
C99Ruy Lopez, closed, Chigorin, 12...c5d4206834.2%59.0%
D97Gruenfeld, Russian, Prins variation115734.2%55.4%
A28English, Nenarokov variation7634.2%46.1%
C56Two knights defence7634.2%50.0%
C14French, classical, Alapin variation7634.2%60.5%
D27QGA, classical, Rubinstein variation387134.2%55.1%
B10Caro-Kann, anti-anti-Caro-Kann defence220534.1%51.9%
C55Two knights, Max Lange attack, Schlechter variation8234.1%48.8%
A28English, four knights, Romanishin variation116334.1%50.6%
C43Petrov, modern attack, Trifunovic variation8534.1%51.2%
D34QGD, Tarrasch, Prague variation, Normal position115134.1%58.2%
D44QGD semi-Slav, 5.Bg5 dc38834.0%49.0%
B74Sicilian, dragon, classical, Reti-Tartakower variation20034.0%52.5%
C15French, Winawer, Alekhine gambit, Kan variation20034.0%49.0%
D57QGD, Lasker defence, main line5034.0%57.0%
D33QGD, Tarrasch, Folkestone (Swedish) variation5334.0%58.5%
D01Richter-Veresov attack, Richter variation5334.0%37.7%
B01Scandinavian, Pytel-Wade variation286133.9%59.9%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O53733.9%56.8%
A07Reti, King's Indian attack324733.9%52.9%
D33QGD, Tarrasch, Prague variation13033.8%60.0%
D77Neo-Gruenfeld, 6.O-O173733.8%53.2%
D81Gruenfeld, Russian variation37933.8%55.7%
B74Sicilian, dragon, classical, 9.Nb322833.8%49.8%
C10French, Fort Knox variation45933.8%54.1%
B04Alekhine's defence, modern, Keres variation16933.7%61.8%
E17Queen's Indian, anti-Queen's Indian system27933.7%53.4%
C47Four knights, Scotch, Krause variation18733.7%55.3%
D48QGD semi-Slav, Meran, old main line19933.7%57.5%
C39KGA, Kieseritsky, Kolisch defence10433.7%50.5%
C89Ruy Lopez, Marshall counter-attack299433.6%51.4%
C67Ruy Lopez, open Berlin defence, 5...Be711333.6%55.8%
B27Sicilian, Hungarian variation1024433.6%57.2%
D02Queen's pawn game, Krause variation82733.6%51.8%
D22QGA, Alekhine defence37233.6%57.4%
C21Centre game28033.6%58.6%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation112333.6%54.2%
C64Ruy Lopez, classical defence, Benelux variation 56933.6%50.9%
C42Petrov, Nimzovich attack72133.6%54.4%
A80Dutch, Krejcik gambit15533.5%46.5%
A13English, Neo-Catalan accepted225433.5%54.3%
E34Nimzo-Indian, classical, Noa variation80533.5%52.7%
C63Ruy Lopez, Schliemann defence, Berger variation67533.5%55.9%
C93Ruy Lopez, closed, Smyslov defence24833.5%57.5%
D40QGD, Semi-Tarrasch defence99633.4%51.8%
D63QGD, Orthodox defence, 7.Rc133533.4%54.9%
D36QGD, exchange, positional line, 6.Qc237733.4%51.2%
A85Dutch with c4 & Nc353933.4%55.8%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6554633.4%55.0%
E41Nimzo-Indian, 4.e3 c580333.4%49.9%
D56QGD, Lasker defence, Teichmann variation14733.3%60.2%
E17Queen's Indian, 5.Bg2 Be79333.3%48.9%
B85Sicilian, Scheveningen, classical, Maroczy system6633.3%54.5%
D40QGD, Semi-Tarrasch, symmetrical variation6333.3%46.8%
A83Dutch, Staunton gambit, Chigorin variation5733.3%67.5%
A12English, New York (London) defensive system4533.3%45.6%
E27Nimzo-Indian, Saemisch variation4533.3%52.2%
C12French, MacCutcheon, Chigorin variation4233.3%54.8%
E75King's Indian, Averbakh, main line4233.3%50.0%
D49QGD semi-Slav, Meran, Rellstab attack3633.3%50.0%
A74Benoni, classical, 9...a6, 10.a43033.3%53.3%
B34Sicilian, accelerated fianchetto, exchange variation2733.3%42.6%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2433.3%54.2%
C41Philidor, Philidor counter-gambit, Zukertort variation1833.3%55.6%
C82Ruy Lopez, open, Berlin variation1833.3%61.1%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1533.3%56.7%
B02Alekhine's defence, Spielmann variation1533.3%56.7%
E36Nimzo-Indian, classical, Botvinnik variation1533.3%56.7%
C31KGD, Falkbeer, 4.d31533.3%63.3%
C51Evans gambit, normal variation1233.3%41.7%
A00Battambang opening933.3%27.8%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack933.3%38.9%
C42Petrov, classical attack, Tarrasch variation933.3%83.3%
C60Ruy Lopez, Vinogradov variation933.3%50.0%
C70Ruy Lopez, Graz variation933.3%61.1%
A00Amsterdam attack933.3%50.0%
A59Benko gambit, 7.e4933.3%61.1%
C48Four knights, Spielmann variation633.3%50.0%
C40Latvian gambit, 3.Bc4633.3%66.7%
C27Boden-Kieseritsky gambit, Lichtenhein defence633.3%33.3%
C23Bishop's opening, Lewis counter-gambit633.3%50.0%
A80Dutch, Spielmann gambit333.3%16.7%
C37KGA, Rosentreter gambit333.3%83.3%
D30QGD, Stonewall variation333.3%83.3%
C45Scotch, Ghulam Kassim variation333.3%83.3%
B23Sicilian, closed, Korchnoi variation34933.2%48.4%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation30733.2%64.5%
C45Scotch, Mieses variation204333.2%51.0%
B58Sicilian, Boleslavsky variation88033.2%49.0%
C36KGA, Abbazia defence, modern variation19333.2%43.0%
D37QGD, classical variation (5.Bf4)768533.2%53.4%
A15English opening1264333.1%54.0%
E19Queen's Indian, old main line, 9.Qxc3168533.1%54.7%
C77Ruy Lopez, Wormald (Alapin) attack65633.1%50.7%
A92Dutch defence11533.0%60.0%
B88Sicilian, Sozin, Leonhardt variation66633.0%49.5%
E96King's Indian, orthodox, 7...Nbd7, main line21533.0%59.3%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)338833.0%53.4%
A23English, Bremen system, Keres variation43733.0%48.5%
A59Benko gambit8532.9%63.5%
E16Queen's Indian, Capablanca variation40432.9%57.5%
B39Sicilian, accelerated fianchetto, Breyer variation149832.9%60.9%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed96132.9%49.7%
E18Queen's Indian, old main line, 7.Nc3301732.9%55.9%
D82Gruenfeld, 4.Bf456332.9%53.7%
C77Ruy Lopez, Morphy defence40532.8%54.4%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation51532.8%49.6%
D92Gruenfeld, 5.Bf4109432.8%55.1%
D24QGA, 4.Nc332032.8%54.2%
E24Nimzo-Indian, Saemisch variation18932.8%50.3%
D78Neo-Gruenfeld, 6.O-O c6166532.8%54.1%
A34English, symmetrical, Rubinstein system35732.8%53.4%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)35432.8%52.0%
C10French, Rubinstein variation745132.7%53.4%
D46QGD semi-Slav, Chigorin defence84932.7%53.5%
B02Alekhine's defence55632.7%56.1%
E36Nimzo-Indian, classical, Noa variation, 5.a343132.7%56.0%
D89Gruenfeld, Spassky variation, main line, 13.Bd310732.7%53.7%
E53Nimzo-Indian, 4.e3, Keres variation10732.7%47.2%
D17QGD Slav, Carlsbad variation68232.7%52.3%
E52Nimzo-Indian, 4.e3, main line with ...b676532.7%52.5%
A91Dutch defence20232.7%52.5%
D55QGD, 6.Nf334032.6%59.0%
E11Bogo-Indian defence353932.6%55.5%
C41Philidor, Nimzovich, Rellstab variation9532.6%64.7%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f461632.6%54.5%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation14132.6%58.9%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation18732.6%52.1%
B34Sicilian, accelerated fianchetto, modern variation114432.6%51.7%
C07French, Tarrasch, open variation626332.6%52.8%
D49QGD semi-Slav, Meran, Stahlberg variation8932.6%52.2%
C33KGA, bishop's gambit, Bledow variation4332.6%41.9%
E04Catalan, open, 5.Nf31065832.5%53.3%
C42Petrov, Kaufmann attack29532.5%57.6%
B13Caro-Kann, Panov-Botvinnik attack182432.5%53.6%
D86Gruenfeld, exchange, Simagin's improved variation12032.5%57.1%
B58Sicilian, Boleslavsky, Louma variation4032.5%61.3%
D58QGD, Tartakower (Makagonov-Bondarevsky) system1261032.5%52.6%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)352132.5%53.7%
C86Ruy Lopez, Worrall attack, sharp line27432.5%49.5%
A81Dutch defence, Blackburne variation7732.5%61.7%
D72Neo-Gruenfeld, 5.cd, main line33932.4%51.9%
E32Nimzo-Indian, classical variation870232.4%53.1%
C69Ruy Lopez, exchange variation, Alapin gambit14532.4%51.4%
D52QGD, Cambridge Springs defence, 7.cd40832.4%57.6%
B04Alekhine's defence, modern, Larsen variation127132.3%56.8%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation76132.3%55.6%
D38QGD, Ragozin variation740432.3%53.6%
B98Sicilian, Najdorf, Browne variation9632.3%57.8%
D37QGD, 4.Nf3635032.3%53.1%
B03Alekhine's defence, four pawns attack9332.3%58.1%
D30QGD246332.2%52.0%
D26QGA, 4...e684132.2%53.0%
A69Benoni, four pawns attack, main line9032.2%42.8%
C41Philidor, Nimzovich (Jaenisch) variation9032.2%48.3%
C43Petrov, modern attack, main line47832.2%58.6%
E77King's Indian, Four pawns attack23932.2%52.9%
E16Queen's Indian, Riumin variation41632.2%56.0%
A12English, London defensive system36732.2%49.0%
B15Caro-Kann, Tartakower (Nimzovich) variation112032.1%53.0%
D27QGA, classical, Geller variation8432.1%43.5%
E39Nimzo-Indian, classical, Pirc variation135432.1%56.5%
C06French, Tarrasch, closed variation, main line270232.1%55.4%
E76King's Indian, Four pawns attack30232.1%59.4%
C84Ruy Lopez, closed defence117932.1%52.0%
E22Nimzo-Indian, Spielmann variation12832.0%52.0%
D13QGD Slav, exchange variation135532.0%53.3%
C80Ruy Lopez, open, 8...Be6132132.0%46.1%
D18QGD Slav, Dutch variation88432.0%57.9%
D60QGD, Orthodox defence, Rauzer variation2532.0%56.0%
C91Ruy Lopez, closed, Bogolyubov variation616932.0%51.9%
D55QGD, Neo-orthodox variation, 7.Bh452031.9%53.7%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d526031.9%51.3%
A30English, symmetrical, hedgehog system757131.9%55.8%
D35QGD, Harrwitz attack9131.9%50.0%
E12Queen's Indian, Petrosian system1129931.9%53.4%
B40Sicilian, Anderssen variation219531.8%55.6%
C44Ponziani, Jaenisch counter-attack68231.8%46.6%
A86Dutch, Leningrad variation19831.8%59.8%
C82Ruy Lopez, open, Italian variation8831.8%61.4%
B07Pirc, Holmov system4431.8%50.0%
A12English, Bled variation4431.8%59.1%
C83Ruy Lopez, open, 9...Be7, 10.Re12231.8%56.8%
C42Petrov, Cozio (Lasker) attack28331.8%51.6%
D91Gruenfeld, 5.Bg5204431.8%49.6%
D35QGD, 3...Nf619531.8%44.1%
D86Gruenfeld, exchange, classical variation130931.8%54.5%
E08Catalan, closed, 7.Qc223631.8%54.0%
C64Ruy Lopez, classical (Cordel) defence68031.8%51.6%
A50Queen's Indian accelerated29631.8%54.4%
E76King's Indian, Four pawns attack, dynamic line14831.8%52.4%
D23QGA, Mannheim variation50431.7%54.6%
A80Dutch, Korchnoi attack10431.7%52.4%
D35QGD, exchange variation37231.7%56.2%
A25English, closed, Hort variation4131.7%50.0%
C78Ruy Lopez, 5.O-O257431.7%55.0%
C45Scotch game351131.7%53.3%
D14QGD Slav, exchange variation, 6.Bf4 Bf575131.7%51.3%
C77Ruy Lopez, Morphy defence, Duras variation10131.7%47.5%
B22Sicilian, Alapin's variation (2.c3)1676631.7%54.0%
C73Ruy Lopez, modern Steinitz defence, Richter variation23431.6%50.9%
E12Queen's Indian, Miles variation140131.6%53.0%
A28English, four knights, Marini variation139331.6%54.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc215231.6%59.2%
C68Ruy Lopez, exchange, Alekhine variation7631.6%43.4%
A83Dutch, Staunton gambit, Alekhine variation1931.6%63.2%
E16Queen's Indian, Yates variation77631.6%58.8%
E65King's Indian, fianchetto, Yugoslav, 7.O-O22531.6%55.8%
C49Four knights, symmetrical variation49831.5%49.9%
E10Queen's pawn game650031.5%54.3%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation398531.5%51.4%
E67King's Indian, fianchetto, classical variation96631.5%55.1%
C00French, Schlechter variation46431.5%50.9%
E94King's Indian, orthodox variation188231.5%57.1%
B44Sicilian, Szen (`anti-Taimanov') variation97631.5%51.5%
C33KGA, Carrera (Basman) gambit3531.4%41.4%
B03Alekhine's defence, exchange variation76431.4%58.1%
D47QGD semi-Slav, Meran variation310831.4%53.0%
D29QGA, classical, 8...Bb777731.4%47.5%
D94Gruenfeld, Makogonov variation22331.4%50.7%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d566631.4%51.9%
D30QGD Slav95631.4%52.8%
C15French, Winawer (Nimzovich) variation129131.4%53.1%
C84Ruy Lopez, closed, centre attack22031.4%50.2%
B09Pirc, Austrian attack, dragon formation116731.4%53.8%
E60King's Indian, 3.g3215631.4%55.9%
D97Gruenfeld, Russian variation with e46731.3%50.0%
A06Reti, Nimzovich-Larsen attack400531.3%50.9%
C44Scotch gambit, Dubois-Reti defence61631.3%49.9%
A13English, Romanishin gambit73131.3%54.4%
D67QGD, Orthodox defence, Bd3 line, 11.O-O18231.3%62.4%
C15French, Winawer, Alekhine (Maroczy) gambit37731.3%56.5%
C43Petrov, modern attack, Symmetrical variation437131.3%53.6%
A07Reti, King's Indian attack, Yugoslav variation479931.3%53.8%
D52QGD, Cambridge Springs defence, Rubinstein variation22431.3%55.4%
C44Scotch, Goering gambit17631.3%49.7%
E90King's Indian, Zinnowitz variation9631.3%53.1%
E20Nimzo-Indian, Mikenas attack1631.3%34.4%
C61Ruy Lopez, Bird's defence, Paulsen variation1631.3%46.9%
B00KP, Colorado counter1631.3%59.4%
E60King's Indian, 3.g3, counterthrust variation1631.3%46.9%
C20KP, King's head opening1631.3%59.4%
E60King's Indian, Danube gambit1631.3%53.1%
B49Sicilian, Taimanov variation222131.2%55.2%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation68531.2%54.7%
C42Petrov, classical attack194331.2%57.3%
B01Scandinavian gambit18931.2%46.8%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)204731.2%55.3%
A88Dutch, Leningrad, main variation with c6217131.2%57.0%
C22Centre game, Paulsen attack9331.2%50.0%
C01French, exchange variation205931.2%53.5%
D47QGD semi-Slav, neo-Meran (Lundin variation)71231.2%56.2%
B08Pirc, classical system, 5.Be2478731.2%58.3%
B18Caro-Kann, classical, 6.h4222131.2%53.3%
A01Nimzovich-Larsen attack, modern variation279931.2%50.1%
D32QGD, Tarrasch defence42731.1%54.7%
D09QGD, Albin counter-gambit, 5.g310631.1%56.1%
E30Nimzo-Indian, Leningrad variation46331.1%51.0%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)19331.1%50.8%
B83Sicilian, Scheveningen, 6.Be282131.1%51.1%
B04Alekhine's defence, modern, fianchetto variation87931.1%55.5%
A58Benko gambit accepted83131.0%55.5%
B79Sicilian, dragon, Yugoslav attack, 12.h414531.0%64.5%
A92Dutch defence, Alekhine variation11631.0%59.5%
D51QGD, 4.Bg5 Nbd711631.0%56.0%
E81King's Indian, Saemisch, Byrne variation8731.0%51.1%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)156331.0%53.3%
A96Dutch, classical variation53531.0%61.9%
E15Queen's Indian, 4.g3 Bb724531.0%52.7%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d512931.0%56.6%
D48QGD semi-Slav, Meran, 8...a6639931.0%48.8%
A17English opening36531.0%52.7%
C70Ruy Lopez, Caro variation8431.0%52.4%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack4231.0%44.0%
D10QGD Slav defence, exchange variation251430.9%51.8%
C69Ruy Lopez, exchange, Bronstein variation50230.9%51.7%
B54Sicilian, Prins (Moscow) variation46030.9%52.4%
D60QGD, Orthodox defence31130.9%57.2%
D31QGD, semi-Slav128030.9%54.1%
A17English, Nimzo-English opening250630.8%54.6%
A08Reti, King's Indian attack, French variation112530.8%50.9%
B09Pirc, Austrian attack, 6.Bd3399830.8%58.0%
A07Reti, King's Indian attack, Keres variation74630.8%51.9%
C11French, Burn variation916530.8%52.0%
E25Nimzo-Indian, Saemisch, Keres variation39630.8%51.5%
E00Catalan opening640130.8%54.1%
C80Ruy Lopez, open, 7.Bb349430.8%52.0%
E05Catalan, open, classical line49430.8%56.1%
C39KGA, Kieseritsky, Berlin defence, 6.Bc45230.8%48.1%
C42Petrov, Damiano variation3930.8%53.8%
E77King's Indian, Four pawns attack, Florentine gambit3930.8%41.0%
B15Caro-Kann, Rasa-Studier gambit1330.8%38.5%
C83Ruy Lopez, open, Malkin variation1330.8%69.2%
A58Benko gambit, Nd2 variation1330.8%53.8%
A16English, Anglo-Gruenfeld defense, Korchnoi variation1330.8%69.2%
C51Evans gambit declined, Cordel variation1330.8%30.8%
E59Nimzo-Indian, 4.e3, main line206630.7%54.2%
B47Sicilian, Taimanov (Bastrikov) variation1094630.7%54.3%
E88King's Indian, Saemisch, orthodox, 7.d5 c651130.7%55.1%
A82Dutch, Staunton gambit15330.7%39.5%
A00Benko's opening1106630.7%50.8%
A16English, Anglo-Gruenfeld, Czech defense12730.7%66.5%
B05Alekhine's defence, modern, Flohr variation37530.7%64.9%
B01Scandinavian, Icelandic gambit7530.7%50.0%
C11French, Swiss variation13730.7%43.8%
D99Gruenfeld defence, Smyslov, main line38530.6%61.6%
E11Bogo-Indian defence, Gruenfeld variation365830.6%55.3%
D86Gruenfeld, exchange, Simagin's lesser variation6230.6%62.1%
A33English, symmetrical, Geller variation283930.6%52.9%
A29English, four knights, kingside fianchetto1646030.6%51.5%
D20Queen's gambit accepted195930.6%55.2%
A54Old Indian, Ukrainian variation19630.6%50.5%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4151630.6%56.8%
D45QGD semi-Slav, Stoltz variation3761530.6%52.4%
C26Vienna, Paulsen-Mieses variation97230.6%50.6%
E07Catalan, closed, 6...Nbd718030.6%53.1%
C77Ruy Lopez, four knights (Tarrasch) variation29830.5%55.5%
D30Queen's gambit declined636530.5%53.3%
B18Caro-Kann, classical variation196430.5%55.3%
A47Queen's Indian, Marienbad system14130.5%49.3%
D96Gruenfeld, Russian variation50930.5%53.9%
D05Colle system79830.5%52.3%
B83Sicilian, modern Scheveningen84130.4%50.1%
E28Nimzo-Indian, Saemisch variation9230.4%53.3%
D25QGA, Flohr variation6930.4%58.7%
A97Dutch, Ilyin-Genevsky variation4630.4%63.0%
B12de Bruycker defence2330.4%50.0%
C86Ruy Lopez, Worrall attack, solid line25030.4%50.8%
E01Catalan, closed51030.4%53.4%
B62Sicilian, Richter-Rauzer, Keres variation54330.4%53.9%
D46QGD semi-Slav, Bogolyubov variation44130.4%56.5%
D52QGD33930.4%56.2%
D04Queen's pawn game217330.4%53.3%
D95Gruenfeld, Botvinnik variation11230.4%43.8%
B27Sicilian defence11230.4%59.8%
A90Dutch-Indian, Alekhine variation11230.4%49.1%
D25QGA, Smyslov variation20130.3%57.5%
E69King's Indian, fianchetto, classical main line125630.3%60.0%
D34QGD, Tarrasch, Prague variation, 7...Be739930.3%59.3%
D00Queen's pawn, Mason variation, Steinitz counter-gambit57430.3%50.2%
E29Nimzo-Indian, Saemisch, main line13230.3%59.1%
C41Philidor, Hanham, Steiner variation3330.3%66.7%
D48QGD semi-Slav, Meran, Pirc variation3330.3%63.6%
C55Two knights defence, Perreux variation3330.3%51.5%
A13English, Wimpey system31730.3%46.7%
C33KGA, bishop's gambit, Steinitz defence7630.3%45.4%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack262130.3%55.5%
E17Queen's Indian, old main line, 6.O-O88330.2%56.6%
D32QGD, Tarrasch, von Hennig-Schara gambit8630.2%58.1%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc4330.2%64.0%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)398430.2%55.5%
A13English, Neo-Catalan169130.2%53.5%
D66QGD, Orthodox defence, Bd3 line37430.2%55.7%
B77Sicilian, dragon, Yugoslav attack, 9.Bc49630.2%53.6%
A46Queen's pawn, Yusupov-Rubinstein system126830.2%51.1%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation49730.2%58.1%
C95Ruy Lopez, closed, Breyer, Borisenko variation232630.2%56.3%
D61QGD, Orthodox defence, Rubinstein variation51730.2%53.2%
A01Nimzovich-Larsen attack, symmetrical variation61730.1%49.6%
C65Ruy Lopez, Berlin defence, Beverwijk variation55130.1%53.0%
C88Ruy Lopez, closed, 7...O-O742630.1%51.7%
D30QGD Slav, Semmering variation18630.1%47.8%
E38Nimzo-Indian, classical, 4...c577430.1%57.2%
A35English, symmetrical, four knights system395130.1%53.0%
C77Ruy Lopez, Anderssen variation137030.1%49.6%
D11QGD Slav, 4.e3463030.1%55.3%
C50Giuoco Pianissimo, Canal variation23330.0%51.5%
B25Sicilian, closed25330.0%49.8%
B07Pirc, 150 attack58630.0%52.6%
B44Sicilian, Szen, hedgehog variation41330.0%48.2%
D31QGD, semi-Slav, Abrahams variation71030.0%44.4%
C80Ruy Lopez, open, Riga variation4030.0%57.5%
C41Philidor, Hanham, Krause variation3030.0%68.3%
D97Gruenfeld, Russian, Levenfish variation1030.0%45.0%
B37Sicilian, accelerated fianchetto, Simagin variation1030.0%45.0%
C50Giuoco Pianissimo189730.0%52.2%
C03French, Tarrasch284530.0%56.2%
C78Ruy Lopez, Moeller defence78430.0%52.1%
B76Sicilian, dragon, Yugoslav attack, 7...O-O60430.0%51.1%
B08Pirc, classical, h3 system67130.0%56.4%
C42Petrov, classical attack, close variation20730.0%55.1%
B07Robatsch defence, Geller's system154329.9%56.9%
B03Alekhine's defence, four pawns attack, 7.Be315729.9%61.5%
B04Alekhine's defence, modern, Schmid variation13729.9%66.1%
A05Reti, King's Indian attack, Spassky's variation79229.9%53.0%
C87Ruy Lopez, closed, Averbach variation39129.9%57.4%
E17Queen's Indian, Opovcensky variation130729.9%58.0%
C50Giuoco Piano128429.9%50.6%
C55Two knights defence (Modern bishop's opening)135829.9%56.3%
A52Budapest, Adler variation62929.9%59.1%
E56Nimzo-Indian, 4.e3, main line with 7...Nc6123829.9%54.6%
B82Sicilian, Scheveningen, 6.f478029.9%55.7%
A05Reti, King's Indian attack218029.9%55.4%
E43Nimzo-Indian, Fischer variation63329.9%54.9%
D10QGD Slav defence501229.8%54.4%
B92Sicilian, Najdorf, Opovcensky variation1098929.8%52.5%
D23Queen's gambit accepted18129.8%49.7%
D56QGD, Lasker defence52329.8%52.0%
A18English, Mikenas-Carls, Flohr variation16129.8%60.2%
E14Queen's Indian, 4.e3272729.8%52.1%
B70Sicilian, dragon variation76629.8%50.0%
C65Ruy Lopez, Berlin defence446729.8%51.3%
E90King's Indian, Larsen variation11129.7%53.6%
D21QGA, Alekhine defense, Borisenko-Furman variation3729.7%36.5%
C32KGD, Falkbeer, 5.de3729.7%52.7%
D49QGD semi-Slav, Meran, Blumenfeld variation53529.7%51.5%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation115129.7%58.2%
C96Ruy Lopez, closed (10...c5)121529.7%58.9%
B06Robatsch defence, Two knights variation58929.7%57.8%
C72Ruy Lopez, modern Steinitz defence, 5.O-O50529.7%55.8%
D52QGD, Cambridge Springs defence, Bogoljubow variation69129.7%54.3%
E49Nimzo-Indian, 4.e3, Botvinnik system43529.7%48.2%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation33429.6%60.0%
A57Benko gambit half accepted120829.6%57.9%
B01Scandinavian defence148529.6%57.6%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd2729.6%70.4%
D15QGD Slav accepted30429.6%51.6%
A28English, Bradley Beach variation18629.6%43.8%
D63QGD, Orthodox defence, Swiss, Karlsbad variation30129.6%52.3%
A07Reti, King's Indian attack (Barcza system)989529.6%53.0%
A20English, Nimzovich, Flohr variation66029.5%46.6%
A16English, Anglo-Gruenfeld defense31529.5%52.2%
C51Evans gambit declined, 5.a410529.5%47.1%
A48King's Indian, Torre attack182329.5%49.9%
B44Sicilian defence42729.5%52.9%
D83Gruenfeld, Gruenfeld gambit6129.5%52.5%
C78Ruy Lopez, Archangelsk (counterthrust) variation342829.5%54.4%
E62King's Indian, fianchetto, Larsen system31229.5%54.5%
A02Bird, From gambit7829.5%46.8%
B06Robatsch (modern) defence980829.5%56.3%
A08Reti, King's Indian attack112029.5%54.8%
A28English, four knights, Nimzovich variation125029.4%52.0%
E91King's Indian, Kazakh variation69729.4%57.5%
A75Benoni, classical with ...a6 and 10...Bg415329.4%53.3%
C44Inverted Hungarian5129.4%50.0%
C12French, MacCutcheon, Dr. Olland (Dutch) variation3429.4%55.9%
A42Modern defence, Averbakh system93229.4%57.9%
A28English, four knights, Capablanca variation49029.4%53.1%
A38English, symmetrical variation72529.4%52.8%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)3141629.4%54.9%
A58Benko gambit, fianchetto variation39529.4%55.2%
B57Sicilian, Sozin, Benko variation512329.4%51.0%
B57Sicilian, Sozin, not Scheveningen54529.4%55.2%
C12French, MacCutcheon variation29329.4%51.9%
C42Petrov, classical attack, Marshall variation241929.4%55.3%
C28Vienna game35829.3%51.8%
E32Nimzo-Indian, classical, Adorjan gambit19129.3%58.1%
A02Bird's opening269929.3%49.9%
B75Sicilian, dragon, Yugoslav attack38929.3%51.7%
B93Sicilian, Najdorf, 6.f4249229.3%49.4%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation167029.3%54.0%
D00Blackmar gambit8229.3%42.7%
C00French, Reversed Philidor formation8229.3%40.2%
B57Sicilian, Magnus Smith trap4129.3%53.7%
A53Old Indian defence177729.3%55.4%
D47QGD semi-Slav, Meran, Wade variation2100429.3%52.9%
D50QGD, 4.Bg531129.3%56.8%
B25Sicilian, closed, 6.f484129.3%50.2%
B33Sicilian defence97829.2%52.8%
B29Sicilian, Nimzovich-Rubinstein variation52029.2%56.2%
E12Queen's Indian defence51029.2%51.1%
B42Sicilian, Kan, 5.Bd3436229.2%56.8%
D43QGD semi-Slav1913529.2%53.5%
A52Budapest, Alekhine, Abonyi variation4829.2%60.4%
C46Four knights, Schultze-Mueller gambit2429.2%39.6%
A43Old Benoni, Schmid's system2429.2%52.1%
D33QGD, Tarrasch, Wagner variation2429.2%60.4%
E60King's Indian, 3.Nf3461229.1%55.6%
E12Queen's Indian, 4.Nc3678529.1%52.6%
D25QGA, Janowsky-Larsen variation70729.1%56.2%
C46Four knights, Italian variation39529.1%48.2%
B41Sicilian, Kan variation27529.1%54.5%
E68King's Indian, fianchetto, classical variation, 8.e4211529.1%58.7%
C71Ruy Lopez, modern Steinitz defence14129.1%51.4%
A30English, symmetrical variation839629.1%53.7%
D19QGD Slav, Dutch variation266629.1%56.4%
D25QGA, 4.e355429.1%57.5%
C46Four knights, Gunsberg variation11729.1%42.7%
A32English, symmetrical variation80929.0%52.6%
B17Caro-Kann, Steinitz variation531929.0%53.9%
B09Pirc, Austrian attack, 6.e531029.0%59.7%
A19English, Mikenas-Carls, Sicilian variation24829.0%55.2%
D63QGD, Orthodox defence, Swiss (Henneberger) variation21729.0%50.9%
E82King's Indian, Saemisch, double fianchetto variation15529.0%60.3%
B42Sicilian, Kan, Gipslis variation19329.0%57.0%
A93Dutch, stonewall, Botwinnik variation26229.0%59.9%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)652729.0%54.5%
D06QGD, symmetrical (Austrian) defence10029.0%54.5%
B84Sicilian, Scheveningen (Paulsen), classical variation909329.0%51.7%
C46Four knights game89729.0%50.1%
E46Nimzo-Indian, Simagin variation10729.0%48.1%
D46QGD semi-Slav, 6.Bd310729.0%50.9%
E21Nimzo-Indian, three knights variation328129.0%51.7%
C70Ruy Lopez7628.9%52.6%
D15QGD Slav, Schlechter variation31128.9%55.6%
B41Sicilian, Kan, Maroczy bind (Reti variation)79528.9%54.1%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system75728.9%50.0%
B72Sicilian, dragon, classical, Nottingham variation8328.9%45.8%
D20QGA, 3.e4392628.9%56.0%
D31QGD, semi-Slav, Marshall gambit262328.9%54.9%
B05Alekhine's defence, modern variation, 4...Bg490028.9%64.7%
C41Philidor's defence54028.9%56.9%
C21Halasz gambit4528.9%41.1%
B43Sicilian, Kan, 5.Nc3595928.9%55.3%
A25English, closed, 5.Rb165828.9%51.8%
D16QGD Slav, Steiner variation35728.9%59.0%
B90Sicilian, Najdorf, Lipnitzky attack225328.9%48.6%
A37English, symmetrical variation93628.8%53.0%
E12Queen's Indian, 4.Nc3, Botvinnik variation11128.8%49.5%
A36English, ultra-symmetrical variation192928.8%49.3%
B41Sicilian, Kan, Maroczy bind - Bronstein variation5928.8%56.8%
E73King's Indian, Averbakh system85428.8%52.2%
B40Sicilian defence854328.8%52.5%
C35KGA, Cunningham, Euwe defence6628.8%50.8%
B74Sicilian, dragon, classical, Spielmann variation6628.8%53.8%
D20QGA, Linares variation6628.8%50.8%
A40Queen's pawn, Franco-Indian (Keres) defence326828.8%55.6%
B46Sicilian, Taimanov variation561028.8%54.7%
E11Bogo-Indian defence, Nimzovich variation266928.7%56.5%
E09Catalan, closed, main line63728.7%57.1%
C88Ruy Lopez, closed, anti-Marshall 8.a4157728.7%51.8%
A89Dutch, Leningrad, main variation with Nc6138028.7%57.6%
A21English, Kramnik-Shirov counterattack358028.7%52.6%
D15QGD Slav, 4.Nc3392928.7%52.7%
D48QGD semi-Slav, Meran, Reynolds' variation133928.7%55.8%
E63King's Indian, fianchetto, Panno variation325128.7%57.0%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack311328.7%57.7%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3288328.7%48.6%
A05Reti opening944028.6%52.6%
A48King's Indian, East Indian defence162428.6%53.4%
C00French, King's Indian attack736828.6%50.9%
D35QGD, exchange, Saemisch variation29028.6%53.3%
D05Queen's pawn game191628.6%53.6%
B30Sicilian defence415428.6%52.2%
A48King's Indian, London system107128.6%51.9%
C02French, advance, Steinitz variation67228.6%49.7%
E72King's Indian with e4 & g34228.6%54.8%
E93King's Indian, Petrosian system, Keres variation2828.6%50.0%
C22Centre game2128.6%61.9%
D50QGD, Been-Koomen variation1428.6%42.9%
E23Nimzo-Indian, Spielmann, Karlsbad variation1428.6%35.7%
C89Ruy Lopez, Marshall, Kevitz variation1428.6%42.9%
C45Scotch, Paulsen attack1428.6%28.6%
C30KGD, Norwalde variation1428.6%50.0%
A59Benko gambit, Ne2 variation1428.6%64.3%
C51Evans gambit declined, Showalter variation1428.6%50.0%
C48Four knights, Bardeleben variation728.6%57.1%
A42Modern defence, Averbakh system, Randspringer variation728.6%28.6%
C33KGA, Villemson (Steinitz) gambit728.6%42.9%
D32QGD, Tarrasch defence, Tarrasch gambit728.6%42.9%
E14Queen's Indian, Averbakh variation728.6%28.6%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation728.6%28.6%
A82Dutch, Balogh defence728.6%57.1%
C44Tayler opening728.6%28.6%
A87Dutch, Leningrad, main variation78828.6%59.7%
D31QGD, 3.Nc391828.5%54.8%
E08Catalan, closed, Qc2 & b341028.5%51.6%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation37528.5%55.3%
C42Petrov three knights game52628.5%54.0%
A81Dutch defence717028.5%56.2%
D45QGD semi-Slav, 5.e3139428.5%56.9%
A72Benoni, classical without 9.O-O12328.5%60.6%
D31QGD, semi-Slav, Noteboom variation70328.4%52.2%
A20English opening1086528.4%52.2%
A61Benoni, Uhlmann variation10928.4%50.9%
D35QGD, exchange, positional line, 5...c6168128.4%55.6%
C50Giuoco Pianissimo, Italian four knights variation51028.4%55.6%
D15QGD Slav, Tolush-Geller gambit29928.4%44.6%
D46QGD semi-Slav, Romih variation22928.4%64.0%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation48328.4%60.6%
B80Sicilian, Scheveningen, fianchetto variation52928.4%51.6%
D31QGD, Charousek (Petrosian) variation177828.3%53.5%
A25English, closed system135528.3%53.1%
C44Scotch gambit, Benima defence6028.3%52.5%
C29Vienna gambit23328.3%48.5%
B28Sicilian, O'Kelly variation81228.3%57.0%
D30QGD, Capablanca-Duras variation81628.3%52.4%
A50Queen's pawn game192728.3%55.8%
A22English, Bremen, Smyslov system262428.3%49.0%
C13French, Albin-Alekhine-Chatard attack, Breyer variation9228.3%55.4%
B21Sicilian, Smith-Morra gambit100528.3%50.0%
A31English, symmetrical, Benoni formation222628.3%54.5%
C17French, Winawer, advance, Bogolyubov variation30128.2%56.3%
B72Sicilian, dragon, classical attack8528.2%57.6%
B72Sicilian, dragon, 6.Be324828.2%50.0%
E62King's Indian, fianchetto, Simagin variation16328.2%68.1%
D11QGD Slav, 3.Nf3487328.2%54.3%
D12QGD Slav, 4.e3 Bf5805028.2%54.4%
C51Evans gambit, Cordel variation11028.2%48.6%
A00Polish (Sokolsky) opening148028.2%50.7%
C69Ruy Lopez, exchange variation, 5.O-O63228.2%53.2%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation59328.2%51.0%
B15Caro-Kann, Gurgenidze system52228.2%57.8%
A84Dutch defence, Rubinstein variation64728.1%56.9%
D29QGA, classical, Smyslov variation9628.1%54.7%
C58Two knights defence, Kieseritsky variation3228.1%54.7%
C45Scotch, Romanishin variation3228.1%45.3%
A47Queen's Indian defence95728.1%53.4%
B06Robatsch defence125028.1%59.0%
B01Scandinavian, Marshall variation90128.1%60.1%
E46Nimzo-Indian, Reshevsky variation144628.1%52.4%
D11QGD Slav, Breyer variation26028.1%52.5%
C64Ruy Lopez, classical defence, 4.c344228.1%52.5%
C96Ruy Lopez, closed, Borisenko defence8228.0%57.9%
B32Sicilian defence101328.0%52.4%
A01Nimzovich-Larsen attack, English variation41428.0%51.2%
D35QGD, exchange, positional line236728.0%53.2%
C61Ruy Lopez, Bird's defence32528.0%58.6%
C24Bishop's opening, Urusov gambit2528.0%42.0%
C20KP, Patzer opening2528.0%58.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation2528.0%38.0%
A36English, symmetrical, Botvinnik system64328.0%56.3%
A49King's Indian, fianchetto without c4213028.0%54.2%
B08Pirc, classical (two knights) system89028.0%56.5%
E62King's Indian, fianchetto variation14328.0%55.2%
E67King's Indian, fianchetto with ...Nd718628.0%62.4%
C86Ruy Lopez, Worrall attack9328.0%58.1%
B50Sicilian513727.9%52.7%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be724027.9%56.0%
E61King's Indian defence, 3.Nc3130427.9%54.0%
D02Queen's bishop game343627.9%51.0%
A00Lasker simul special14027.9%46.8%
B24Sicilian, closed59627.9%49.2%
C00French defence, Steiner variation111727.8%49.8%
C62Ruy Lopez, old Steinitz defence62527.8%54.2%
E10Dzindzikhashvili defence19427.8%59.8%
C55Two knights defence15127.8%48.3%
C53Giuoco Piano438327.8%52.7%
A13English opening, Agincourt variation282327.8%52.2%
A11English, Caro-Kann defensive system141027.8%55.6%
A28English, four knights, 4.e3136827.8%51.3%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd259427.8%60.2%
B32Sicilian, Flohr variation14427.8%56.9%
C74Ruy Lopez, Siesta, Kopayev variation12627.8%52.8%
C00Lengfellner system10827.8%61.1%
A24English, Bremen system with ...g67227.8%59.7%
D54QGD, Anti-neo-orthodox variation3627.8%55.6%
B23Sicilian, Grand Prix attack, Schofman variation1827.8%30.6%
B02Alekhine's defence, Krejcik variation1827.8%36.1%
D35QGD, exchange, chameleon variation1827.8%63.9%
B48Sicilian, Taimanov variation697227.8%54.1%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7208227.8%52.1%
B42Sicilian, Kan, Swiss cheese variation29927.8%56.7%
A61Benoni, Nimzovich (knight's tour) variation69227.7%57.4%
B23Sicilian, closed, 2...Nc6330927.7%53.1%
A04Reti opening1485427.7%52.9%
A40Queen's pawn, Keres defence353027.7%55.3%
B09Pirc, Austrian attack76127.7%58.1%
A09Reti accepted126327.7%53.0%
C82Ruy Lopez, open, Dilworth variation8327.7%53.6%
B19Caro-Kann, classical, Spassky variation844127.7%57.5%
A36English, symmetrical, Botvinnik system reversed14827.7%49.7%
D17QGD Slav, Wiesbaden variation66127.7%58.5%
B23Sicilian, chameleon variation114227.7%55.3%
C80Ruy Lopez, open, 6.d44727.7%60.6%
E00Queen's pawn game146127.7%53.9%
A21English, Troeger defence17027.6%54.4%
D07QGD, Chigorin defence228627.6%57.5%
A35English, symmetrical variation36927.6%57.5%
B87Sicilian, Sozin with ...a6 and ...b5137527.6%48.4%
A12English, Caro-Kann defensive system27527.6%55.3%
A50Kevitz-Trajkovich defence113327.6%53.6%
A63Benoni, fianchetto, 9...Nbd710527.6%56.7%
C90Ruy Lopez, closed (with ...d6)239927.6%49.3%
A05Reti, King's Indian attack, Reti-Smyslov variation14527.6%50.3%
C21Danish gambit5827.6%55.2%
C40Damiano's defence2927.6%55.2%
B02Alekhine's defence, Welling variation2927.6%44.8%
D47QGD semi-Slav, 7.Bc480927.6%57.8%
C48Four knights, Spanish, classical defence15627.6%52.2%
D52QGD, Cambridge Springs defence, Yugoslav variation103627.5%58.3%
B33Sicilian, Pelikan, Bird variation26927.5%59.1%
D02Queen's pawn game1391827.5%52.9%
A46Queen's pawn game606227.5%53.9%
A41Modern defence9127.5%56.6%
B02Alekhine's defence, Scandinavian variation37527.5%55.6%
C24Bishop's opening, Berlin defence136927.5%52.4%
C02French, advance, Wade variation38627.5%54.9%
D98Gruenfeld, Russian, Smyslov variation59027.5%53.9%
B20Sicilian, wing gambit, Marshall variation39727.5%40.9%
B07Pirc, Sveshnikov system103127.4%52.3%
C89Ruy Lopez, Marshall, main line, 12.d2d4110827.4%55.9%
B10Caro-Kann, Two knights variation86427.4%55.6%
A37English, symmetrical, Botvinnik system reversed70827.4%51.0%
C00French, Pelikan variation8427.4%50.6%
C75Ruy Lopez, modern Steinitz defence29627.4%57.9%
A16English opening118827.4%54.0%
C10French, Paulsen variation153227.3%56.5%
C42Petrov, Paulsen attack25627.3%46.1%
B01Scandinavian defence, Lasker variation15027.3%64.3%
A41Robatsch defence, Rossolimo variation17227.3%54.4%
B13Caro-Kann, exchange variation106927.3%50.7%
B01Scandinavian (centre counter) defence484927.3%59.7%
C88Ruy Lopez, closed409927.3%48.2%
C88Ruy Lopez, Trajkovic counter-attack28627.3%53.1%
C88Ruy Lopez, closed, 8.c34427.3%50.0%
B62Sicilian, Richter-Rauzer, Podvebrady variation3327.3%53.0%
D05Queen's pawn game, Zukertort variation3327.3%59.1%
E87King's Indian, Saemisch, orthodox, Bronstein variation1127.3%59.1%
C37KGA, Salvio gambit1127.3%50.0%
A83Dutch, Staunton gambit, Lasker variation1127.3%50.0%
C51Evans gambit, Goering attack1127.3%59.1%
C30KGD, classical, Marshall attack1127.3%50.0%
C43Petrov, modern attack, Steinitz variation1127.3%59.1%
B45Sicilian, Taimanov variation447027.3%54.4%
A21English opening329427.3%54.1%
E92King's Indian, Petrosian system, Stein variation120527.2%53.1%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation57027.2%52.9%
B97Sicilian, Najdorf, Poisoned pawn variation333627.2%44.4%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation139127.2%51.1%
B12Caro-Kann, Tartakower (fantasy) variation97927.2%55.2%
C52Evans gambit24327.2%40.3%
A45Blackmar-Diemer gambit16227.2%54.3%
A20English, Nimzovich variation29127.1%54.8%
A70Benoni, classical with e4 and Nf3151427.1%59.6%
A09Reti opening101727.1%53.5%
D16QGD Slav, Smyslov variation12927.1%59.3%
B32Sicilian, Labourdonnais-Loewenthal variation31727.1%54.6%
E10Blumenfeld counter-gambit11827.1%54.2%
E66King's Indian, fianchetto, Yugoslav Panno46127.1%55.6%
C60Ruy Lopez, Cozio defence39127.1%57.5%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit16627.1%43.1%
C00French, Reti (Spielmann) variation28827.1%55.2%
C20KP, Indian opening24027.1%50.2%
C41Philidor, Improved Hanham variation125627.1%56.8%
C48Four knights, Spanish variation32927.1%51.8%
A42Pterodactyl defence110927.1%61.7%
E26Nimzo-Indian, Saemisch variation12227.0%48.8%
A64Benoni, fianchetto, 11...Re818527.0%52.4%
A12English, Capablanca's variation7427.0%48.6%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation3727.0%64.9%
B95Sicilian, Najdorf, 6...e6134427.0%53.4%
D10QGD Slav, Winawer counter-gambit30027.0%56.8%
C13French, classical, Tartakower variation2626.9%55.8%
C91Ruy Lopez, closed, 9.d4377226.9%55.7%
C78Ruy Lopez, ...b5 & ...d69326.9%48.9%
A27English, three knights system46926.9%52.7%
C50Giuoco Piano, four knights variation13426.9%51.5%
C25Vienna gambit6726.9%52.2%
C41Philidor, Hanham, Schlechter variation6726.9%62.7%
B33Sicilian, Pelikan, Chelyabinsk variation569926.9%55.2%
C63Ruy Lopez, Schliemann defence36526.8%56.7%
A56Benoni defence154226.8%58.9%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence66326.8%56.6%
B89Sicilian, Sozin, 7.Be3425526.8%49.0%
C11French, Steinitz variation179426.8%53.8%
C92Ruy Lopez, closed, Kholmov variation19426.8%58.8%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation5626.8%56.3%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation25426.8%54.7%
B42Sicilian, Kan, Polugaievsky variation285826.8%54.3%
C26Vienna game34026.8%53.4%
E94King's Indian, orthodox, Donner variation22826.8%55.9%
D06QGD, Marshall defence32926.7%59.6%
A98Dutch, Ilyin-Genevsky variation with Qc217226.7%60.5%
A55Old Indian, main line115626.7%62.6%
E40Nimzo-Indian, 4.e321726.7%54.4%
B12Caro-Kann, 3.Nd247926.7%59.1%
B63Sicilian, Richter-Rauzer, Rauzer attack45726.7%55.8%
A01Nimzovich-Larsen attack, classical variation174726.7%48.8%
C44Scotch opening4526.7%42.2%
B22Sicilian, 2.c3, Heidenfeld variation4526.7%44.4%
D32QGD, Tarrasch defence, 4.cd ed3026.7%46.7%
E24Nimzo-Indian, Saemisch, Botvinnik variation3026.7%46.7%
C21Danish gambit, Soerensen defence3026.7%53.3%
B09Pirc, Austrian attack, Ljubojevic variation1526.7%73.3%
E95King's Indian, orthodox, 7...Nbd7, 8.Re197626.6%56.0%
A06Reti opening318826.6%53.3%
A46Queen's pawn, Torre attack133126.6%51.9%
A43Old Benoni, Franco-Benoni defence15826.6%61.4%
A00Van't Kruijs opening128326.6%51.9%
C00St. George defence63626.6%55.3%
C92Ruy Lopez, closed, 9.h355726.6%55.8%
C27Vienna game27126.6%48.7%
B23Sicilian, closed568026.6%53.0%
A71Benoni, classical, 8.Bg512826.6%53.9%
C30KGD, 2...Nf66426.6%52.3%
C59Two knights defence17726.6%46.6%
A54Old Indian, Ukrainian variation, 4.Nf330926.5%54.7%
A92Dutch, stonewall variation34326.5%58.5%
C65Ruy Lopez, Berlin defence, 4.O-O19626.5%62.8%
C64Ruy Lopez, Cordel gambit4926.5%74.5%
A95Dutch, stonewall with Nc346026.5%53.9%
B40Sicilian, Pin, Koch variation13226.5%70.1%
E94King's Indian, orthodox, 7...Nbd7257626.5%57.0%
A25English, Sicilian reversed107526.5%51.9%
C54Giuoco Piano15126.5%54.3%
C70Ruy Lopez, Classical defence deferred52126.5%51.8%
E20Nimzo-Indian defence25326.5%46.0%
C14French, classical, Steinitz variation91926.4%57.6%
A34English, symmetrical variation185126.4%50.6%
A21English, Smyslov defence5326.4%56.6%
C11French, Steinitz, Boleslavsky variation666526.4%54.6%
B62Sicilian, Richter-Rauzer, 6...e617826.4%48.6%
D45QGD semi-Slav, 5...Nd7128426.4%51.4%
E70King's Indian, accelerated Averbakh system12526.4%50.0%
B23Sicilian, Grand Prix attack57226.4%52.5%
C48Four knights, Rubinstein counter-gambit150426.4%53.8%
B33Sicilian, Sveshnikov variation310026.4%52.8%
A80Dutch775826.4%54.1%
C33KGA, bishop's gambit, Morphy variation3826.3%44.7%
C23Bishop's opening, Philidor variation1926.3%55.3%
D86Gruenfeld, exchange, Larsen variation1926.3%60.5%
E92King's Indian, classical variation1926.3%44.7%
B56Sicilian514726.3%54.4%
A45Queen's pawn game519426.3%51.2%
A83Dutch, Staunton gambit, Staunton's line23226.3%46.3%
D01Richter-Veresov attack119926.3%46.6%
A15English, 1...Nf6 (Anglo-Indian defense)161926.3%52.5%
E89King's Indian, Saemisch, orthodox main line8026.3%61.9%
A86Dutch with c4 & g320226.2%62.6%
B54Sicilian103726.2%54.1%
D15QGD Slav, Slav gambit29426.2%47.4%
A36English, symmetrical variation16826.2%48.8%
C27Vienna, `Frankenstein-Dracula' variation4226.2%56.0%
C22Centre game, Berger variation38226.2%54.2%
C19French, Winawer, advance, 6...Ne778726.2%59.6%
A01Nimzovich-Larsen attack93626.2%51.3%
D44QGD semi-Slav, anti-Meran gambit191026.1%60.0%
C47Four knights, Belgrade gambit24526.1%42.9%
D17QGD Slav, Krause attack83126.1%58.2%
B07Pirc defence265826.1%54.7%
C44King's pawn game6926.1%47.8%
C74Ruy Lopez, modern Steinitz defence, siesta variation4626.1%47.8%
C29Vienna gambit, Paulsen attack2326.1%52.2%
C90Ruy Lopez, closed, Pilnik variation306826.1%52.2%
A41Old Indian defence298926.1%51.1%
D21QGA, 3.Nf3116326.1%55.2%
A90Dutch defence204226.1%55.8%
B10Caro-Kann, anti-Caro-Kann defence129826.0%56.9%
C59Two knights defence, Steinitz variation17326.0%59.2%
C33KGA, bishop's gambit, Jaenisch variation10026.0%52.0%
C02French, advance, Milner-Barry gambit12726.0%53.1%
B76Sicilian, dragon, Yugoslav attack, Rauser variation134026.0%59.3%
C04French, Tarrasch, Guimard main line43926.0%56.0%
A22English, Carls' Bremen system81725.9%54.8%
B81Sicilian, Scheveningen, Keres attack469125.9%58.9%
A60Benoni defence21625.9%53.2%
C30KGD, Mafia defence10825.9%59.3%
C90Ruy Lopez, closed, Suetin variation5425.9%48.1%
E13Queen's Indian, 4.Nc3, main line35925.9%55.6%
C98Ruy Lopez, closed, Chigorin, 12...Nc625925.9%63.9%
C44Ponziani opening17425.9%53.7%
E41Nimzo-Indian, e3, Huebner variation93225.9%49.3%
B60Sicilian, Richter-Rauzer134225.9%57.5%
A51Budapest, Fajarowicz variation12025.8%62.1%
A40Queen's pawn549725.8%53.6%
A44Old Benoni defence6225.8%66.1%
C29Vienna gambit, Steinitz variation3125.8%48.4%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit3125.8%29.0%
A84Dutch defence161125.8%57.4%
A07Reti, King's Indian attack (with ...c5)43125.8%48.4%
C44Scotch gambit10125.7%49.5%
B20Sicilian, Keres variation (2.Ne2)114325.7%53.1%
A22English opening104625.7%50.5%
C41Philidor, exchange variation127625.7%57.8%
E70King's Indian, 4.e482125.7%54.4%
B09Pirc, Austrian attack, 6.Be374825.7%55.5%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation123925.7%60.3%
A04Reti v Dutch226425.7%56.3%
B98Sicilian, Najdorf, 7...Be726525.7%52.5%
A09Reti, advance variation154825.6%47.8%
B27Sicilian, Katalimov variation16425.6%53.7%
C25Vienna game74625.6%52.1%
B77Sicilian, dragon, Yugoslav attack, 9...Bd746525.6%55.2%
C73Ruy Lopez, modern Steinitz defence, Alapin variation29725.6%55.6%
C00French, Labourdonnais variation63725.6%49.1%
B84Sicilian, Scheveningen, classical, Nd7 system8625.6%52.3%
C02French, advance, Nimzovich variation4325.6%22.1%
C49Four knights, symmetrical, Pillsbury variation4725.5%42.6%
C44Inverted Hanham4725.5%48.9%
B06Robatsch defence, Pseudo-Austrian attack95225.5%59.3%
E71King's Indian, Makagonov system (5.h3)82725.5%55.2%
B21Sicilian, Grand Prix attack209025.5%49.5%
A17English, Queens Indian formation22425.4%54.7%
C30King's gambit17325.4%56.1%
A13English, Kurajica defence11825.4%50.8%
A56Czech Benoni defence77525.4%61.6%
A13English opening473325.4%53.1%
A43Old Benoni defence249325.4%55.4%
C11French defence59125.4%48.6%
B11Caro-Kann, Two knights, 3...Bg4151325.4%53.1%
C53Giuoco Piano, Bird's attack13425.4%52.2%
D97Gruenfeld, Russian, Byrne (Simagin) variation33925.4%51.3%
B20Sicilian, Steinitz variation119525.4%53.7%
B00King's pawn opening281825.3%53.6%
C68Ruy Lopez, exchange variation32425.3%57.4%
C17French, Winawer, advance, 5.a375525.3%57.3%
B15Caro-Kann defence60125.3%49.3%
D84Gruenfeld, Gruenfeld gambit accepted8725.3%66.7%
C17French, Winawer, advance variation9525.3%60.0%
E81King's Indian, Saemisch, 5...O-O226725.2%54.1%
A01Nimzovich-Larsen attack, Indian variation61525.2%54.7%
C02French, advance, Euwe variation298425.2%52.2%
C19French, Winawer, advance, Smyslov variation26225.2%58.8%
C02French, advance variation204125.2%53.8%
C40Latvian counter-gambit15125.2%60.9%
B94Sicilian, Najdorf, 6.Bg5157025.2%52.9%
E80King's Indian, Saemisch variation49325.2%55.6%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7708625.1%52.6%
B26Sicilian, closed, 6.Be352525.1%47.8%
D06QGD, Grau (Sahovic) defence137325.1%56.0%
B98Sicilian, Najdorf variation21125.1%49.1%
D00Queen's pawn game198425.1%51.3%
A10English opening461925.1%53.3%
D15QGD Slav, 5.e3 (Alekhine variation)29925.1%51.0%
A28English, four knights system62225.1%52.3%
B00Owen defence71825.1%55.8%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)850625.0%55.5%
B07Pirc, Byrne variation43225.0%55.8%
A77Benoni, classical, 9...Re8, 10.Nd240825.0%55.9%
A00Polish, Outflank variation27225.0%49.6%
E07Catalan, closed, Botvinnik variation14825.0%59.8%
C30KGD, classical, 4.c313625.0%62.5%
D00Queen's pawn, stonewall attack10025.0%49.5%
A00Benko's opening, reversed Alekhine9225.0%46.2%
D41QGD, Semi-Tarrasch, San Sebastian variation8025.0%68.8%
A61Benoni, fianchetto variation6825.0%53.7%
C96Ruy Lopez, closed (8...Na5)5225.0%52.9%
C31KGD, Nimzovich counter-gambit5225.0%45.2%
C34KGA, Bonsch-Osmolovsky variation4425.0%42.0%
C71Ruy Lopez, modern Steinitz defence, Three knights variation2825.0%58.9%
E11Bogo-Indian defence, Monticelli trap2825.0%55.4%
C48Four knights, Ranken variation2825.0%44.6%
D51QGD, Manhattan variation2025.0%52.5%
C64Ruy Lopez, classical defence, Charousek variation2025.0%67.5%
A84Dutch, Staunton gambit deferred1625.0%37.5%
C31KGD, Falkbeer, Tartakower variation1625.0%81.3%
D90Gruenfeld, Schlechter variation1625.0%62.5%
C52Evans gambit, compromised defence, Paulsen variation1625.0%68.8%
C30KGD, classical, Soldatenkov variation1225.0%54.2%
D98Gruenfeld, Russian, Keres variation1225.0%70.8%
D43QGD semi-Slav, Hastings variation825.0%25.0%
B02Alekhine's defence, Steiner variation825.0%37.5%
C22Centre game, Hall variation825.0%62.5%
C67Ruy Lopez, open Berlin defence, Showalter variation425.0%62.5%
C39KGA, Kieseritsky, Neumann defence425.0%62.5%
C53Giuoco Piano, Tarrasch variation425.0%62.5%
C54Giuoco Piano, Greco's attack425.0%37.5%
A25English, closed, 5.Rb1 Taimanov variation425.0%37.5%
A02Bird, Hobbs gambit425.0%62.5%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation425.0%87.5%
A43Hawk (Habichd) defence425.0%37.5%
C25Vienna, Hamppe-Allgaier gambit425.0%37.5%
B71Sicilian, dragon, Levenfish; Flohr variation425.0%62.5%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a61486425.0%51.2%
E91King's Indian, 6.Be287325.0%59.8%
B80Sicilian, Scheveningen, English variation58525.0%50.8%
A99Dutch, Ilyin-Genevsky variation with b349724.9%59.2%
A40Polish defence35324.9%57.2%
A42Modern defence, Averbakh system, Kotov variation67824.9%58.0%
B90Sicilian, Najdorf1186524.9%51.1%
A73Benoni, classical, 9.O-O26124.9%53.4%
A57Benko gambit114924.9%54.7%
B10Caro-Kann defence541324.9%53.8%
D12QGD Slav, exchange variation43024.9%53.4%
B12Caro-Kann, advance variation2114624.9%53.9%
C43Petrov, modern (Steinitz) attack15324.8%60.8%
B90Sicilian, Najdorf, Byrne (English) attack4847624.8%51.5%
B96Sicilian, Najdorf, Polugayevsky variation13324.8%52.3%
C42Petrov's defence93624.8%53.8%
B86Sicilian, Sozin attack23424.8%44.9%
A45Trompovsky attack (Ruth, Opovcensky opening)712424.8%51.7%
A61Benoni defence73124.8%58.6%
E92King's Indian, Gligoric-Taimanov system244624.7%57.4%
B10Caro-Kann, closed (Breyer) variation174924.7%50.5%
B19Caro-Kann, classical, 7...Nd791124.7%52.0%
A10English, Anglo-Dutch defense129624.7%55.2%
C41Philidor, Larsen variation7724.7%68.2%
C00French, Chigorin variation313724.7%50.8%
D00Levitsky attack (Queen's bishop attack)260024.7%49.8%
A41Old Indian, Tartakower (Wade) variation327824.6%58.5%
A57Benko gambit, Zaitsev system6924.6%50.0%
C40QP counter-gambit, Maroczy gambit6524.6%61.5%
C17French, Winawer, advance, Russian variation6524.6%49.2%
B00Carr's defence6524.6%53.8%
C12French, MacCutcheon, Lasker variation, 8...g674924.6%54.6%
E62King's Indian, fianchetto with ...Nc633824.6%57.0%
E44Nimzo-Indian, Fischer variation, 5.Ne288424.5%56.7%
D63QGD, Orthodox defence11024.5%57.7%
A40Modern defence206624.5%56.1%
C02French, advance, Paulsen attack211524.5%53.5%
A18English, Mikenas-Carls variation9824.5%57.1%
D00Queen's pawn, Mason variation192824.5%51.9%
E20Nimzo-Indian, Kmoch variation105524.5%54.3%
B16Caro-Kann, Bronstein-Larsen variation72424.4%60.8%
C00French, Two knights variation85524.4%49.8%
A28English, four knights, Stean variation17624.4%56.0%
A26English, Botvinnik system41024.4%47.8%
B89Sicilian, Velimirovic attack169424.4%50.9%
B06Robatsch defence, Gurgenidze variation75924.4%64.0%
C19French, Winawer, advance, poisoned pawn variation509124.4%58.7%
D02Queen's pawn game, Chigorin variation161524.3%54.6%
E64King's Indian, fianchetto, Yugoslav system18124.3%56.9%
C58Two knights defence21424.3%56.1%
C12French, MacCutcheon, Janowski variation17724.3%59.6%
E60Queen's pawn, Mengarini attack14024.3%50.7%
E61King's Indian, Smyslov system13224.2%50.8%
C27Vienna, Alekhine variation9924.2%42.4%
A25English, closed system (without ...d6)9924.2%48.5%
D94Gruenfeld, Flohr defence6624.2%54.5%
C23Bishop's opening38824.2%52.8%
D44QGD semi-Slav, Botvinnik system (anti-Meran)35524.2%47.9%
E33Nimzo-Indian, classical, 4...Nc612824.2%62.9%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)9524.2%47.9%
C05French, Tarrasch, closed variation192324.2%56.9%
C05French, Tarrasch, Botvinnik variation14924.2%57.0%
B20Sicilian defence604024.1%48.6%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O106224.1%54.3%
B07Pirc, Ufimtsev-Pytel variation83024.1%55.9%
A03Bird's opening286624.0%48.9%
E08Catalan, closed, Spassky gambit2524.0%56.0%
B80Sicilian, Scheveningen variation141724.0%53.7%
A06Reti, old Indian attack32124.0%52.5%
D07QGD, Chigorin defence, Janowski variation56724.0%61.7%
C46Three knights game25923.9%52.5%
D70Neo-Gruenfeld defence37623.9%53.5%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation113823.9%53.5%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf644823.9%57.3%
C16French, Winawer, advance variation109323.9%56.9%
B03Alekhine's defence76723.9%53.4%
E00Neo-Indian (Seirawan) attack56723.8%49.8%
C88Ruy Lopez, closed, 7...d6, 8.d412623.8%38.1%
B13Caro-Kann, Panov-Botvinnik, Herzog defence2123.8%54.8%
C16French, Winawer, Petrosian variation37023.8%54.1%
B00KP, Nimzovich defence246723.8%57.7%
B20Sicilian, wing gambit8023.8%45.6%
B97Sicilian, Najdorf, 7...Qb6245523.7%46.5%
A40Beefeater defence3823.7%59.2%
B90Sicilian, Najdorf, Adams attack255023.6%53.0%
E10Blumenfeld counter-gambit accepted20323.6%53.7%
C20Alapin's opening11023.6%48.2%
A00Clemenz (Mead's, Basman's or de Klerk's) opening465223.6%49.4%
E60King's Indian defence157523.6%53.2%
B60Sicilian, Richter-Rauzer, Larsen variation34423.5%55.1%
A65Benoni, 6.e418723.5%59.4%
E90King's Indian, 5.Nf3118423.5%54.3%
E93King's Indian, Petrosian system, main line22623.5%55.1%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation43123.4%58.6%
B96Sicilian, Najdorf, 7.f4188723.4%49.0%
C92Ruy Lopez, closed, Keres (9...a5) variation4723.4%58.5%
C10French, Frere (Becker) variation4723.4%54.3%
B10Caro-Kann, Goldman (Spielmann) variation10723.4%49.1%
C00French defence369323.3%55.1%
D48QGD semi-Slav, Meran34323.3%47.8%
A07Reti, King's Indian attack, Pachman system25323.3%52.0%
A00Dunst (Sleipner, Heinrichsen) opening190523.3%52.1%
C19French, Winawer, advance, positional main line282423.3%57.5%
C60Ruy Lopez (Spanish opening)15523.2%52.3%
D51QGD, 5...c66923.2%59.4%
C25Vienna game, Max Lange defence6923.2%44.9%
D03Torre attack (Tartakower variation)92323.2%50.5%
E10Doery defence10823.1%45.8%
A41Queen's Pawn481423.1%56.1%
E74King's Indian, Averbakh, 6...c524223.1%63.2%
B83Sicilian, modern Scheveningen, main line with Nb316023.1%49.7%
A26English, closed system33823.1%50.9%
D33QGD, Tarrasch, Schlechter-Rubinstein system1323.1%50.0%
C48Four knights, Rubinstein counter-gambit, 5.Be21323.1%57.7%
B27Sicilian, Acton extension1323.1%57.7%
C97Ruy Lopez, closed, Chigorin defence172523.0%60.0%
A52Budapest defence7423.0%56.1%
A80Dutch, 2.Bg5 variation235922.9%53.3%
C25Vienna, Paulsen variation59922.9%50.5%
B74Sicilian, dragon, classical, Alekhine variation3522.9%62.9%
E73King's Indian, Semi-Averbakh system3522.9%57.1%
C03French, Tarrasch, Guimard variation22822.8%61.0%
C51Evans gambit, Stone-Ware variation5722.8%44.7%
E40Nimzo-Indian, 4.e3, Taimanov variation10122.8%52.0%
B02Alekhine's defence, Maroczy variation26822.8%47.2%
C50King's pawn game37422.7%54.4%
E99King's Indian, orthodox, Aronin-Taimanov, main line13222.7%53.8%
E73King's Indian, 5.Be210622.6%49.1%
C55Two knights, Max Lange attack8422.6%47.0%
D16QGD Slav accepted, Alapin variation24422.5%69.5%
C53Giuoco Piano, close variation4022.5%51.3%
A12English, Caro-Kann defensive system, Bogolyubov variation13822.5%51.1%
B03Alekhine's defence, four pawns attack, Trifunovic variation4922.4%68.4%
A62Benoni, fianchetto variation129122.4%55.5%
A00Amar (Paris) opening7622.4%41.4%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c654622.3%54.9%
E60King's Indian, Anti-Gruenfeld13922.3%45.7%
E70King's Indian, Kramer system22922.3%53.5%
C53Giuoco Piano, centre-holding variation2722.2%63.0%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation2722.2%63.0%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc62722.2%40.7%
B01Scandinavian, Richter variation1822.2%72.2%
C01French, exchange, Bogolyubov variation922.2%33.3%
A70Benoni, classical without 9.O-O922.2%77.8%
C33King's gambit accepted922.2%44.4%
B20Sicilian, Gloria variation922.2%55.6%
A47Queen's Indian, Marienbad system, Berg variation922.2%55.6%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation922.2%88.9%
C40Gunderam defence23922.2%63.8%
A04Reti, Pirc-Lisitsin gambit15822.2%58.5%
E15Queen's Indian, Rubinstein variation12222.1%51.2%
B12Caro-Kann defence181322.1%56.5%
B02Alekhine's defence, Saemisch attack24122.0%57.9%
C13French, Albin-Alekhine-Chatard attack38222.0%56.5%
A00Grob's attack23222.0%49.4%
B99Sicilian, Najdorf, 7...Be7 main line159422.0%54.5%
B00St. George (Baker) defence18721.9%53.7%
D00Queen's pawn, Chigorin variation148721.9%51.8%
A00Polish, Tuebingen variation7321.9%52.1%
A00Anderssen's opening70321.9%47.5%
E84King's Indian, Saemisch, Panno main line84121.9%52.1%
C52Evans gambit, Tartakower attack9621.9%51.6%
A52Budapest, Alekhine variation6421.9%48.4%
D52QGD, Cambridge Springs defence, Argentine variation3221.9%48.4%
C45Scotch, Steinitz variation5521.8%45.5%
C35KGA, Cunningham defence10121.8%46.5%
B04Alekhine's defence, modern variation39521.8%61.3%
C13French, classical, Anderssen variation4621.7%39.1%
A00Anti-Borg (Desprez) opening2321.7%58.7%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc62321.7%50.0%
C60Ruy Lopez, Lucena defence2321.7%45.7%
C15French, Winawer, fingerslip variation3721.6%59.5%
E26Nimzo-Indian, Saemisch, O'Kelly variation3721.6%37.8%
B03Alekhine's defence, four pawns attack, 6...Nc65121.6%50.0%
A09Reti accepted, Keres variation12121.5%59.5%
A00Ware (Meadow Hay) opening20521.5%47.3%
A92Dutch, stonewall with Nc37021.4%63.6%
E15Queen's Indian, Buerger variation2821.4%53.6%
D51QGD, Alekhine variation1421.4%53.6%
C41Philidor, Steinitz variation1421.4%53.6%
D44QGD semi-Slav, anti-Meran, Lilienthal variation48321.3%58.7%
A44Semi-Benoni (`blockade variation')105621.3%61.2%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1314321.2%59.1%
A80Dutch, Manhattan (Alapin, Ulvestad) variation11821.2%54.7%
A51Budapest defence declined5221.2%52.9%
A40Queen's pawn, English defence53021.1%54.9%
E83King's Indian, Saemisch, Panno formation19921.1%54.3%
A06Tennison (Lemberg, Zukertort) gambit1921.1%57.9%
A10English, Jaenisch gambit1921.1%68.4%
C24Bishop's opening, Ponziani gambit1921.1%36.8%
A56Benoni defence, Hromodka system108821.0%58.7%
A43Old Benoni, Mujannah formation11921.0%60.9%
E31Nimzo-Indian, Leningrad, main line20521.0%47.1%
B02Alekhine's defence, Brooklyn defence6221.0%58.9%
A01Nimzovich-Larsen attack, Dutch variation16721.0%50.6%
C18French, Winawer, classical variation78320.9%56.4%
C34KGA, Fischer defence21520.9%47.7%
B03Alekhine's defence, Balogh variation4320.9%59.3%
C33KGA, bishop's gambit, Maurian defence2420.8%52.1%
D44QGD semi-Slav, Ekstrom variation5320.8%38.7%
C44Ponziani counter-gambit19820.7%52.3%
A04Reti, Lisitsin gambit deferred5820.7%43.1%
C44Dresden opening5820.7%46.6%
D31QGD, semi-Slav, Junge variation2920.7%62.1%
E10Blumenfeld counter-gambit, Spielmann variation9220.7%53.8%
D10QGD Slav defence, Alekhine variation40720.6%56.0%
C57Two knights defence6320.6%37.3%
C30KGD, classical variation22820.6%46.7%
E87King's Indian, Saemisch, orthodox, 7.d546120.6%62.1%
B40Sicilian, Pin variation (Sicilian counter-attack)10220.6%55.4%
C58Two knights defence, Bogolyubov variation6820.6%57.4%
C57Two knights defence, Ulvestad variation3420.6%57.4%
C18French, Winawer, advance variation74720.5%57.1%
C20King's pawn game28920.4%52.1%
C95Ruy Lopez, closed, Breyer, Gligoric variation6920.3%65.2%
D44QGD semi-Slav, anti-Meran, Szabo variation21220.3%41.3%
A79Benoni, classical, 11.f320020.0%67.0%
D15QGD Slav, Suechting variation8520.0%53.5%
C31KGD, Falkbeer counter-gambit6520.0%46.9%
D30QGD, Capablanca variation6020.0%46.7%
D01Richter-Veresov attack, Veresov variation5520.0%55.5%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation4520.0%52.2%
C34KGA, Becker defence4520.0%41.1%
C57Two knights defence, Lolli attack2020.0%55.0%
C80Ruy Lopez, open, 8.de1520.0%56.7%
C44Scotch, Goering gambit, Bardeleben variation1020.0%40.0%
D53QGD, Lasker variation520.0%50.0%
C30KGD, classical, Svenonius variation520.0%50.0%
C96Ruy Lopez, closed, Rossolimo defence520.0%70.0%
B01Scandinavian, Kiel variation520.0%90.0%
C41Philidor, Nimzovich, Sokolsky variation520.0%50.0%
A02Bird, From gambit, Lipke variation520.0%30.0%
C12French, MacCutcheon, Lasker variation45719.9%51.8%
A45Paleface attack19119.9%41.4%
A53Old Indian, Janowski variation63219.8%58.8%
A67Benoni, Taimanov variation38919.5%59.1%
B50Sicilian, wing gambit deferred3619.4%45.8%
A00Saragossa opening92219.4%50.5%
C42Petrov, Italian variation15519.4%51.0%
C02French, advance, Nimzovich system32619.3%46.8%
D45QGD semi-Slav, stonewall defence2619.2%67.3%
C14French, classical, Rubinstein variation4719.1%54.3%
B80Sicilian, Scheveningen, Vitolins variation11019.1%44.1%
D06Queen's Gambit2119.0%57.1%
C38KGA, Hanstein gambit2119.0%38.1%
A56Czech Benoni, King's Indian system33318.9%59.9%
C13French, classical, Frankfurt variation1618.8%84.4%
A82Dutch, Staunton gambit, Tartakower variation1618.8%53.1%
A00Global opening1618.8%71.9%
C46Three knights, Steinitz variation15518.7%53.2%
A46Queen's pawn, Torre attack, Wagner gambit2718.5%38.9%
C45Scotch, Pulling counter-attack2718.5%61.1%
A45Canard opening2718.5%50.0%
C36KGA, Abbazia defence (classical defence, modern defence[!])2718.5%53.7%
B27Sicilian, Quinteros variation9818.4%59.2%
B12Caro-Kann, advance, Short variation9318.3%68.3%
C34KGA, Schallop defence9918.2%49.5%
C44Scotch, Lolli variation7718.2%53.2%
C68Ruy Lopez, exchange, Romanovsky variation1118.2%45.5%
C65Ruy Lopez, Berlin defence, Kaufmann variation1118.2%45.5%
C29Vienna gambit, Bardeleben variation1118.2%27.3%
C58Two knights defence, Paoli variation1118.2%81.8%
C48Four knights, Marshall variation1118.2%63.6%
B82Sicilian, Scheveningen, Tal variation19318.1%60.4%
A00Mieses opening49718.1%52.7%
C20KP, Mengarini's opening7817.9%56.4%
C30KGD, Keene's defence3917.9%50.0%
A00Durkin's attack6717.9%53.7%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack2817.9%69.6%
E92King's Indian, Petrosian system18517.8%57.0%
C40Greco defence9017.8%64.4%
C41Philidor, Nimzovich, Sozin variation4517.8%48.9%
B53Sicilian, Chekhover, Zaitsev variation4517.8%53.3%
C06French, Tarrasch, Leningrad variation5117.6%53.9%
C43Petrov, modern attack, Bardeleben variation1717.6%67.6%
C23Bishop's opening, Classical variation11417.5%50.9%
B00Reversed Grob (Borg/Basman defence/macho Grob)16917.2%51.8%
C40QP counter-gambit (elephant gambit)17517.1%62.9%
B00KP, Nimzovich defence, Bogolyubov variation26917.1%55.0%
C26Vienna, Falkbeer variation14117.0%51.1%
E83King's Indian, Saemisch, 6...Nc69417.0%55.3%
B07Pirc, bayonet (Mariotti) attack4717.0%51.1%
A18English, Mikenas-Carls, Kevitz variation4717.0%55.3%
D24QGA, Bogolyubov variation24717.0%47.4%
A76Benoni, classical, 9...Re812616.7%60.7%
D31QGD, Alapin variation4216.7%41.7%
C41Philidor, Philidor counter-gambit3016.7%51.7%
B20Sicilian, wing gambit, Carlsbad variation2416.7%58.3%
B40Sicilian, Marshall variation2416.7%41.7%
A03Bird's opening, Williams gambit1816.7%58.3%
B00Barnes defence1816.7%63.9%
A00Amar gambit1216.7%50.0%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1216.7%66.7%
D51QGD, Capablanca anti-Cambridge Springs variation1216.7%58.3%
C65Ruy Lopez, Berlin defence, Anderssen variation616.7%8.3%
C33KGA, bishop's gambit, Anderssen variation616.7%75.0%
C60Ruy Lopez, Brentano defence616.7%58.3%
C40King's knight opening616.7%41.7%
C12French, MacCutcheon, Bogolyubov variation616.7%75.0%
C52Evans gambit, Richardson attack616.7%25.0%
C82Ruy Lopez, open, 9.c3616.7%58.3%
C57Two knights defence, Fritz variation616.7%58.3%
C52Evans gambit, Waller attack616.7%41.7%
C30KGD, classical counter-gambit616.7%58.3%
B00KP, Nimzovich defence, Marshall gambit616.7%41.7%
C30KGD, classical, Reti variation616.7%75.0%
C24Bishop's opening, Urusov gambit, Panov variation616.7%58.3%
B06Robatsch defence, three pawns attack9916.2%54.5%
A00Gedult's opening3116.1%40.3%
B15Caro-Kann, Gurgenidze counter-attack3116.1%59.7%
C57Two knights defence, Wilkes Barre (Traxler) variation7516.0%62.7%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)9515.8%53.2%
C33KGA, bishop's gambit12815.6%52.3%
D00Blackmar-Diemer gambit3215.6%51.6%
C00French, Alapin variation4515.6%45.6%
C70Ruy Lopez, Schliemann defence deferred4515.6%56.7%
C13French, classical, Anderssen-Richter variation1315.4%30.8%
C42Petrov, French attack1315.4%69.2%
A43Woozle defence4015.0%50.0%
C39KGA, Kieseritsky, Berlin defence5414.8%37.0%
A02Bird, From gambit, Lasker variation3414.7%54.4%
C34King's knight's gambit6914.5%47.8%
B12Caro-Kann, Edinburgh variation4914.3%74.5%
B32Sicilian, Nimzovich variation2814.3%53.6%
B27Sicilian, Stiletto (Althouse) variation1414.3%71.4%
A02Bird's opening, Swiss gambit1414.3%64.3%
B12Caro-Masi defence1414.3%50.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation714.3%50.0%
C33KGA, bishop's gambit, Boden defence714.3%35.7%
A83Dutch, Staunton gambit, Nimzovich variation714.3%50.0%
C80Ruy Lopez, open, Zukertort variation714.3%50.0%
C22Centre game, Charousek variation714.3%50.0%
C42Petrov, Cochrane gambit4314.0%46.5%
C27Boden-Kieseritsky gambit5813.8%50.0%
D18QGD Slav, Dutch, Lasker variation2913.8%65.5%
C37KGA, Blachly gambit2213.6%29.5%
C14French, classical variation2213.6%20.5%
C44Konstantinopolsky opening2213.6%43.2%
C03French, Tarrasch, Haberditz variation1513.3%66.7%
C41Philidor, Lopez counter-gambit1513.3%80.0%
C00French, Wing gambit4812.5%41.7%
C44Scotch, Relfsson gambit ('MacLopez')4012.5%46.3%
C13French, classical2412.5%52.1%
A22English, Bellon gambit1612.5%43.8%
A54Old Indian, Dus-Khotimirsky variation812.5%68.8%
E83King's Indian, Saemisch, Ruban variation812.5%56.3%
C33KGA, bishop's gambit, Paulsen attack812.5%43.8%
C55Two knights, Max Lange attack, Steinitz variation812.5%56.3%
C33KGA, bishop's gambit, Bogolyubov variation3312.1%48.5%
D44QGD semi-Slav, anti-Meran, Alatortsev system5111.8%60.8%
A45Queen's pawn, Bronstein gambit1711.8%47.1%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation1711.8%64.7%
D51QGD2611.5%67.3%
C51Evans gambit, Paulsen variation3611.1%44.4%
C65Ruy Lopez, Berlin defence, Mortimer variation1811.1%66.7%
C38King's knight's gambit911.1%50.0%
C52Evans gambit, compromised defence2810.7%55.4%
C41Philidor, Boden variation1910.5%52.6%
A00Grob, Fritz gambit3910.3%20.5%
C33KGA, Keres (Mason-Steinitz) gambit439.3%44.2%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit229.1%45.5%
C33KGA, bishop's gambit, classical defence119.1%22.7%
C37KGA, Muzio gambit119.1%13.6%
C43Petrov, Urusov gambit468.7%45.7%
C41Philidor, Nimzovich, Klein variation128.3%62.5%
C40Latvian, Fraser defence128.3%62.5%
A00Novosibirsk opening258.0%48.0%
B01Scandinavian, Mieses-Kotrvc gambit267.7%50.0%
C37KGA, Quaade gambit137.7%11.5%
C25Vienna, Pierce gambit147.1%32.1%
E03Catalan, open, Alekhine variation156.7%43.3%
C89Ruy Lopez, Marshall, Herman Steiner variation326.3%50.0%
C44Ponziani, Reti variation166.3%53.1%
B03Alekhine's defence, O'Sullivan gambit166.3%59.4%
C12French, MacCutcheon, Bernstein variation185.6%52.8%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation214.8%73.8%
A68Benoni, four pawns attack140.0%42.9%
A57Benko gambit, Nescafe Frappe attack120.0%33.3%
C14French, classical, Pollock variation120.0%41.7%
D00Blackmar-Diemer, Euwe defence110.0%45.5%
C58Two knights defence, Colman variation90.0%77.8%
B00Fred80.0%87.5%
C15French, Winawer, Alekhine gambit70.0%71.4%
A03Mujannah opening70.0%42.9%
C70Ruy Lopez, Alapin's defence deferred70.0%42.9%
C31KGD, Falkbeer, Nimzovich variation70.0%42.9%
C40Latvian, Polerio variation60.0%33.3%
B02Alekhine's defence, Kmoch variation60.0%50.0%
A40Queen's pawn, Charlick (Englund) gambit60.0%83.3%
C51Evans gambit60.0%0.0%
B77Sicilian, dragon, Yugoslav attack, Byrne variation50.0%80.0%
C50Rousseau gambit50.0%60.0%
C80Ruy Lopez, open, Harksen gambit50.0%60.0%
E77King's Indian, Four pawns attack, 6.Be250.0%40.0%
C38KGA, Philidor gambit, Schultz variation50.0%20.0%
C88Ruy Lopez, Noah's ark trap50.0%60.0%
B01Scandinavian, Anderssen counter-attack, Goteborg system50.0%100.0%
C83Ruy Lopez, open, Breslau variation50.0%80.0%
E36Nimzo-Indian, classical, Noa variation, main line50.0%20.0%
C13French, classical, Vistaneckis (Nimzovich) variation40.0%75.0%
C38KGA, Philidor gambit40.0%25.0%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%75.0%
B40Sicilian, Pin, Jaffe variation40.0%100.0%
D63QGD, Orthodox defence, Capablanca variation40.0%75.0%
A86Dutch, Hort-Antoshin system40.0%75.0%
C33KGA, bishop's gambit, Boren-Svenonius variation30.0%66.7%
C11French, Steinitz, Bradford attack30.0%33.3%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation30.0%100.0%
C41Philidor, Paulsen attack30.0%100.0%
D50QGD, Canal (Venice) variation30.0%33.3%
C21Danish gambit, Collijn defence30.0%33.3%
C49Four knights, Svenonius variation30.0%66.7%
C57Two knights defence, Fegatello attack, Leonhardt variation30.0%0.0%
C37KGA, Salvio gambit, Anderssen counter-attack30.0%33.3%
C80Ruy Lopez, open, Richter variation30.0%33.3%
A56Vulture defence30.0%33.3%
C67Ruy Lopez, Berlin defence, Trifunovic variation30.0%100.0%
E09Catalan, closed, Sokolsky variation30.0%66.7%
C37KGA, Silberschmidt gambit20.0%0.0%
D34QGD, Tarrasch, Stoltz variation20.0%100.0%
C36KGA, Abbazia defence, Botvinnik variation20.0%100.0%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.20.0%50.0%
C32KGD, Falkbeer, Charousek gambit20.0%100.0%
B03Alekhine's defence, four pawns attack, Planinc variation20.0%100.0%
C41Philidor, Hanham, Kmoch variation20.0%50.0%
C59Two knights defence, Goering variation20.0%50.0%
B07Pirc, Chinese variation20.0%50.0%
C35KGA, Cunningham, Bertin gambit20.0%50.0%
B62Sicilian, Richter-Rauzer, Richter attack10.0%0.0%
C44Ponziani counter-gambit, Schmidt attack10.0%0.0%
C45Scotch, Rosenthal variation10.0%0.0%
C32KGD, Falkbeer, Charousek variation10.0%0.0%
C57Two knights defence, Fegatello attack, Polerio defence10.0%0.0%
C37KGA, King's knight's gambit10.0%0.0%
C98Ruy Lopez, closed, Chigorin, Rauzer attack10.0%0.0%
D51QGD, Rochlin variation10.0%0.0%
B00Guatemala defence10.0%100.0%
C51Evans gambit, Steinitz variation10.0%100.0%
C44Ponziani counter-gambit, Cordel variation10.0%100.0%
D08QGD, Albin counter-gambit, Balogh variation10.0%0.0%
C39King's knight's gambit10.0%100.0%
C37KGA, double Muzio gambit10.0%0.0%
D08QGD, Albin counter-gambit, Janowski variation10.0%100.0%
C78Ruy Lopez, Rabinovich variation10.0%100.0%
D67QGD, Orthodox defence, Bd3 line, Capablanca freeing manoevre10.0%100.0%
C34KGA, Gianutio counter-gambit10.0%0.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%
C32KGD, Falkbeer, Tarrasch variation10.0%100.0%
D55QGD, Pillsbury attack10.0%0.0%
C39KGA, Allgaier gambit10.0%100.0%

Created in 2005-2013 by CCRL team
Last games added on January 13, 2018