CCRL 40/4
Downloads and Statistics
April 13, 2019
Testing summary:
Total: 1'978'909 games
played by 2'316 programs
26642 CPU days (X2 4600+)

White wins: 772'756 (39.0%)
Black wins: 624'315 (31.5%)
Draws: 581'838 (29.4%)
White score: 53.8%

Opening statistics

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

ECOOpeningNumber
of
games
DrawsWhite
score
A00Amar (Paris) opening7722.1%42.2%
A00Amar gambit1216.7%50.0%
A00Amsterdam attack1421.4%39.3%
A00Anderssen's opening71622.5%48.0%
A00Anti-Borg (Desprez) opening2321.7%58.7%
A00Battambang opening933.3%27.8%
A00Benko's opening1345630.6%50.9%
A00Benko's opening, reversed Alekhine14430.6%48.6%
A00Clemenz (Mead's, Basman's or de Klerk's) opening522223.2%49.9%
A00Dunst (Sleipner, Heinrichsen) opening243226.0%51.4%
A00Durkin's attack6717.9%53.7%
A00Gedult's opening3917.9%50.0%
A00Global opening1618.8%71.9%
A00Grob's attack27421.2%45.6%
A00Grob, Fritz gambit3910.3%20.5%
A00Lasker simul special14027.9%46.8%
A00Mieses opening72619.6%51.7%
A00Novosibirsk opening3821.1%47.4%
A00Polish (Sokolsky) opening190528.7%50.5%
A00Polish, Outflank variation32525.2%49.2%
A00Polish, Tuebingen variation6920.3%50.7%
A00Saragossa opening106120.8%51.5%
A00Van't Kruijs opening140827.6%52.3%
A00Ware (Meadow Hay) opening22620.8%46.2%
A01Nimzovich-Larsen attack125328.6%51.2%
A01Nimzovich-Larsen attack, Dutch variation20224.8%52.0%
A01Nimzovich-Larsen attack, English variation60728.3%51.1%
A01Nimzovich-Larsen attack, Indian variation97828.4%52.5%
A01Nimzovich-Larsen attack, Polish variation2835.7%53.6%
A01Nimzovich-Larsen attack, classical variation232627.5%48.1%
A01Nimzovich-Larsen attack, modern variation348530.3%50.0%
A01Nimzovich-Larsen attack, symmetrical variation75330.0%51.1%
A02Bird's opening348430.4%49.8%
A02Bird's opening, Swiss gambit1414.3%64.3%
A02Bird, From gambit13727.7%50.4%
A02Bird, From gambit, Lasker variation3716.2%54.1%
A02Bird, From gambit, Lipke variation520.0%30.0%
A02Bird, Hobbs gambit425.0%62.5%
A03Bird's opening347524.6%49.2%
A03Bird's opening, Lasker variation6530.8%47.7%
A03Bird's opening, Williams gambit2516.0%60.0%
A03Mujannah opening70.0%42.9%
A04Reti opening1829228.6%53.5%
A04Reti v Dutch281226.8%56.7%
A04Reti, Lisitsin gambit deferred7220.8%43.8%
A04Reti, Pirc-Lisitsin gambit19923.6%57.5%
A04Reti, Wade defence540.0%80.0%
A05Reti opening1192829.3%52.3%
A05Reti, King's Indian attack262929.3%56.0%
A05Reti, King's Indian attack, Reti-Smyslov variation17728.2%50.3%
A05Reti, King's Indian attack, Spassky's variation99230.0%53.0%
A06Reti opening411328.5%53.1%
A06Reti, Nimzovich-Larsen attack452831.1%51.2%
A06Reti, old Indian attack39525.1%52.5%
A06Santasiere's folly16734.1%48.8%
A06Tennison (Lemberg, Zukertort) gambit3212.5%56.3%
A07Reti, King's Indian attack375633.9%52.8%
A07Reti, King's Indian attack (Barcza system)1199830.1%53.0%
A07Reti, King's Indian attack (with ...c5)46725.5%49.6%
A07Reti, King's Indian attack, Keres variation88031.7%52.4%
A07Reti, King's Indian attack, Pachman system26323.2%51.9%
A07Reti, King's Indian attack, Yugoslav variation554931.4%53.7%
A08Reti, King's Indian attack126929.6%54.4%
A08Reti, King's Indian attack, French variation129930.8%51.0%
A09Reti accepted160727.5%52.5%
A09Reti accepted, Keres variation13524.4%59.6%
A09Reti opening119727.2%53.7%
A09Reti, advance variation203625.2%47.4%
A10English opening562125.8%53.6%
A10English, Adorjan defence59235.5%50.8%
A10English, Anglo-Dutch defense158825.6%55.4%
A10English, Jaenisch gambit1723.5%70.6%
A11English, Caro-Kann defensive system188028.5%55.6%
A12English, Bled variation5032.0%58.0%
A12English, Capablanca's variation8230.5%50.6%
A12English, Caro-Kann defensive system30028.0%55.7%
A12English, Caro-Kann defensive system, Bogolyubov variation16622.9%50.0%
A12English, London defensive system60930.4%51.5%
A12English, New York (London) defensive system5632.1%44.6%
A12English, Torre defensive system60934.0%52.5%
A13English opening596626.0%52.8%
A13English opening, Agincourt variation324028.5%52.4%
A13English, Kurajica defence14623.3%53.4%
A13English, Neo-Catalan280131.2%53.8%
A13English, Neo-Catalan accepted262833.8%54.9%
A13English, Romanishin gambit106930.1%54.6%
A13English, Wimpey system42230.6%48.5%
A14English, Neo-Catalan declined134635.4%53.3%
A14English, Symmetrical, Keres defence91836.2%54.9%
A15English opening1470632.9%54.2%
A15English, 1...Nf6 (Anglo-Indian defense)188926.9%52.4%
A16English opening138927.6%54.1%
A16English, Anglo-Gruenfeld defense36729.7%53.0%
A16English, Anglo-Gruenfeld defense, Korchnoi variation1735.3%64.7%
A16English, Anglo-Gruenfeld, Czech defense13831.2%65.6%
A16English, Anglo-Gruenfeld, Smyslov defense7838.5%59.0%
A17English opening39732.0%53.3%
A17English, Nimzo-English opening290630.8%54.4%
A17English, Queens Indian formation27324.5%53.7%
A17English, Queens Indian, Romanishin variation5334.0%47.2%
A18English, Mikenas-Carls variation13227.3%56.8%
A18English, Mikenas-Carls, Flohr variation20431.4%57.8%
A18English, Mikenas-Carls, Kevitz variation4816.7%54.2%
A19English, Mikenas-Carls, Sicilian variation31826.4%53.1%
A20English opening1271528.5%52.3%
A20English, Nimzovich variation33326.7%53.0%
A20English, Nimzovich, Flohr variation69829.5%46.8%
A21English opening369327.3%54.2%
A21English, Keres variation2634.6%44.2%
A21English, Kramnik-Shirov counterattack413328.5%52.3%
A21English, Smyslov defence5928.8%58.5%
A21English, Troeger defence19928.6%54.0%
A22English opening119126.5%50.9%
A22English, Bellon gambit3417.6%44.1%
A22English, Bremen, Smyslov system298028.3%49.0%
A22English, Bremen, reverse dragon182334.0%52.9%
A22English, Carls' Bremen system96525.9%55.1%
A23English, Bremen system, Keres variation49333.1%49.0%
A24English, Bremen system with ...g69328.0%59.1%
A25English, Sicilian reversed126626.1%51.8%
A25English, closed system162827.7%53.8%
A25English, closed system (without ...d6)11123.4%47.7%
A25English, closed, 5.Rb189827.4%51.4%
A25English, closed, 5.Rb1 Taimanov variation714.3%21.4%
A25English, closed, Hort variation4431.8%50.0%
A25English, closed, Taimanov variation3534.3%48.6%
A26English, Botvinnik system42924.7%49.0%
A26English, closed system37625.0%51.3%
A27English, three knights system78825.4%52.8%
A28English, Bradley Beach variation20828.4%44.0%
A28English, Nenarokov variation9131.9%45.6%
A28English, four knights system73326.1%52.7%
A28English, four knights, 4.e3156028.2%51.9%
A28English, four knights, Capablanca variation59530.8%52.5%
A28English, four knights, Marini variation155332.5%53.4%
A28English, four knights, Nimzovich variation283431.8%52.2%
A28English, four knights, Romanishin variation124934.9%50.2%
A28English, four knights, Stean variation17924.6%55.9%
A29English, four knights, kingside fianchetto2142531.5%51.6%
A30English, symmetrical variation979529.6%54.0%
A30English, symmetrical, hedgehog system967232.5%56.0%
A30English, symmetrical, hedgehog, flexible formation59136.2%57.4%
A31English, symmetrical, Benoni formation251528.3%54.2%
A32English, symmetrical variation128929.5%51.9%
A33English, symmetrical variation660235.4%52.5%
A33English, symmetrical, Geller variation464132.3%52.5%
A34English, symmetrical variation209927.0%51.2%
A34English, symmetrical, Rubinstein system40533.3%53.0%
A34English, symmetrical, three knights system281535.5%52.2%
A35English, symmetrical variation45328.9%56.2%
A35English, symmetrical, four knights system528030.2%53.4%
A36English, symmetrical variation18525.9%48.6%
A36English, symmetrical, Botvinnik system99026.9%54.1%
A36English, symmetrical, Botvinnik system reversed17327.7%49.7%
A36English, ultra-symmetrical variation361826.1%50.1%
A37English, symmetrical variation104929.9%53.0%
A37English, symmetrical, Botvinnik system reversed78027.7%51.4%
A38English, symmetrical variation84730.1%53.3%
A38English, symmetrical, main line with b31136.4%36.4%
A38English, symmetrical, main line with d317735.0%51.4%
A39English, symmetrical, main line with d4144437.9%55.5%
A40Beefeater defence3823.7%61.8%
A40Modern defence271625.8%56.5%
A40Polish defence40025.8%57.1%
A40Queen's pawn636626.2%53.8%
A40Queen's pawn, Charlick (Englund) gambit4632.6%68.5%
A40Queen's pawn, English defence75423.1%55.8%
A40Queen's pawn, Franco-Indian (Keres) defence528327.2%55.7%
A40Queen's pawn, Keres defence513327.3%55.5%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence105328.1%56.9%
A41Modern defence13529.6%55.6%
A41Old Indian defence503025.0%51.5%
A41Old Indian, Tartakower (Wade) variation420823.8%58.7%
A41Queen's Pawn536023.5%55.9%
A41Robatsch defence, Rossolimo variation20126.9%53.7%
A42Modern defence, Averbakh system156328.8%56.9%
A42Modern defence, Averbakh system, Kotov variation119123.2%57.3%
A42Modern defence, Averbakh system, Randspringer variation728.6%28.6%
A42Pterodactyl defence112427.3%61.7%
A43Hawk (Habichd) defence425.0%37.5%
A43Old Benoni defence309826.2%55.3%
A43Old Benoni, Franco-Benoni defence19626.5%63.8%
A43Old Benoni, Mujannah formation16422.0%62.2%
A43Old Benoni, Schmid's system3030.0%51.7%
A43Woozle defence4822.9%51.0%
A44Old Benoni defence8022.5%71.3%
A44Semi-Benoni (`blockade variation')173621.7%61.8%
A45Blackmar-Diemer gambit19627.0%53.8%
A45Canard opening2917.2%53.4%
A45Paleface attack19219.8%41.1%
A45Queen's pawn game647126.5%51.6%
A45Queen's pawn, Bronstein gambit2913.8%41.4%
A45Trompovsky attack (Ruth, Opovcensky opening)1010724.8%51.4%
A46Doery defence250.0%25.0%
A46Queen's pawn game719527.7%53.8%
A46Queen's pawn, Torre attack163626.6%52.0%
A46Queen's pawn, Torre attack, Wagner gambit3324.2%39.4%
A46Queen's pawn, Yusupov-Rubinstein system144430.3%51.4%
A47Queen's Indian defence109227.4%53.2%
A47Queen's Indian, Marienbad system15730.6%49.0%
A47Queen's Indian, Marienbad system, Berg variation922.2%55.6%
A48King's Indian, East Indian defence184029.3%53.7%
A48King's Indian, London system123227.7%52.5%
A48King's Indian, Torre attack200728.8%50.5%
A49King's Indian, fianchetto without c4264228.3%54.0%
A50Kevitz-Trajkovich defence142527.9%55.2%
A50Queen's Indian accelerated40128.7%57.2%
A50Queen's pawn game229229.3%55.7%
A51Budapest defence declined7123.9%52.8%
A51Budapest, Fajarowicz variation17627.3%60.8%
A51Budapest, Fajarowicz, Steiner variation1361.5%46.2%
A52Budapest defence9124.2%51.6%
A52Budapest, Adler variation91531.7%58.1%
A52Budapest, Alekhine variation7520.0%48.7%
A52Budapest, Alekhine, Abonyi variation5226.9%59.6%
A52Budapest, Rubinstein variation102135.6%58.8%
A53Old Indian defence200329.0%55.1%
A53Old Indian, Janowski variation105919.8%57.5%
A54Old Indian, Dus-Khotimirsky variation147.1%75.0%
A54Old Indian, Ukrainian variation24228.9%51.2%
A54Old Indian, Ukrainian variation, 4.Nf334227.2%54.8%
A55Old Indian, main line145127.3%61.8%
A56Benoni defence189226.8%58.5%
A56Benoni defence, Hromodka system115121.3%58.5%
A56Czech Benoni defence87524.9%62.1%
A56Czech Benoni, King's Indian system55618.7%61.3%
A56Vulture defence30.0%33.3%
A57Benko gambit147925.4%54.4%
A57Benko gambit half accepted136029.8%57.8%
A57Benko gambit, Nescafe Frappe attack120.0%33.3%
A57Benko gambit, Zaitsev system8627.9%52.3%
A58Benko gambit accepted87131.1%55.4%
A58Benko gambit, Nd2 variation1631.3%46.9%
A58Benko gambit, fianchetto variation39929.8%55.3%
A59Benko gambit8632.6%64.0%
A59Benko gambit, 7.e41631.3%65.6%
A59Benko gambit, Ne2 variation1428.6%64.3%
A59Benko gambit, main line108535.0%62.9%
A60Benoni defence27028.5%52.8%
A61Benoni defence76125.2%58.3%
A61Benoni, Nimzovich (knight's tour) variation77526.2%57.4%
A61Benoni, Uhlmann variation11128.8%51.4%
A61Benoni, fianchetto variation7427.0%55.4%
A62Benoni, fianchetto variation207324.0%55.5%
A63Benoni, fianchetto, 9...Nbd716127.3%57.1%
A64Benoni, fianchetto, 11...Re819625.5%52.0%
A65Benoni, 6.e421725.3%60.1%
A66Benoni, Mikenas variation540.0%60.0%
A66Benoni, pawn storm variation1050.0%55.0%
A67Benoni, Taimanov variation66818.1%56.8%
A68Benoni, four pawns attack140.0%42.9%
A69Benoni, four pawns attack, main line9732.0%42.8%
A70Benoni, classical with e4 and Nf3185926.3%59.0%
A70Benoni, classical without 9.O-O1020.0%80.0%
A71Benoni, classical, 8.Bg513725.5%53.6%
A72Benoni, classical without 9.O-O12929.5%59.7%
A73Benoni, classical, 9.O-O33224.7%53.9%
A74Benoni, classical, 9...a6, 10.a43234.4%51.6%
A75Benoni, classical with ...a6 and 10...Bg421128.9%55.2%
A76Benoni, classical, 9...Re813515.6%59.6%
A77Benoni, classical, 9...Re8, 10.Nd244323.9%56.7%
A78Benoni, classical with ...Re8 and ...Na69134.1%54.4%
A79Benoni, classical, 11.f323220.3%66.6%
A80Dutch1074825.8%54.1%
A80Dutch, 2.Bg5 variation323022.4%54.1%
A80Dutch, Korchnoi attack12729.1%56.3%
A80Dutch, Krejcik gambit27429.9%44.2%
A80Dutch, Manhattan (Alapin, Ulvestad) variation15824.7%50.9%
A80Dutch, Spielmann gambit616.7%8.3%
A80Dutch, Von Pretzel gambit825.0%37.5%
A81Dutch defence801828.4%55.9%
A81Dutch defence, Blackburne variation9232.6%62.0%
A81Dutch, Leningrad, Karlsbad variation933.3%61.1%
A82Dutch, Balogh defence2128.6%52.4%
A82Dutch, Staunton gambit18429.9%40.5%
A82Dutch, Staunton gambit, Tartakower variation2015.0%52.5%
A83Dutch, Staunton gambit, Alekhine variation1931.6%63.2%
A83Dutch, Staunton gambit, Chigorin variation6535.4%66.9%
A83Dutch, Staunton gambit, Lasker variation1323.1%50.0%
A83Dutch, Staunton gambit, Nimzovich variation714.3%50.0%
A83Dutch, Staunton gambit, Staunton's line25827.1%46.9%
A84Dutch defence189526.2%56.3%
A84Dutch defence, Rubinstein variation73527.5%56.9%
A84Dutch, Staunton gambit deferred1827.8%41.7%
A85Dutch with c4 & Nc371331.0%56.2%
A86Dutch with c4 & g324825.0%61.3%
A86Dutch, Hort-Antoshin system40.0%75.0%
A86Dutch, Leningrad variation23430.8%59.8%
A87Dutch, Leningrad, main variation91427.8%59.4%
A88Dutch, Leningrad, main variation with c6260630.7%56.5%
A89Dutch, Leningrad, main variation with Nc6182127.9%57.7%
A90Dutch defence214625.9%56.0%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation52528.0%61.2%
A90Dutch-Indian, Alekhine variation11928.6%52.1%
A91Dutch defence23732.9%53.2%
A92Dutch defence13230.3%59.8%
A92Dutch defence, Alekhine variation12429.8%57.7%
A92Dutch, stonewall variation35527.0%59.2%
A92Dutch, stonewall with Nc39028.9%58.9%
A93Dutch, stonewall, Botwinnik variation27828.1%59.4%
A94Dutch, stonewall with Ba319035.8%54.2%
A95Dutch, stonewall with Nc348626.5%54.8%
A95Dutch, stonewall: Chekhover variation5036.0%56.0%
A96Dutch, classical variation58230.8%61.4%
A97Dutch, Ilyin-Genevsky variation5930.5%64.4%
A97Dutch, Ilyin-Genevsky, Winter variation19334.7%64.0%
A98Dutch, Ilyin-Genevsky variation with Qc219726.4%60.4%
A99Dutch, Ilyin-Genevsky variation with b352224.9%59.0%
B00Barnes defence1816.7%63.9%
B00Carr's defence6323.8%54.8%
B00Corn stalk defence1136.4%81.8%
B00Fred80.0%87.5%
B00Guatemala defence10.0%100.0%
B00KP, Colorado counter2722.2%59.3%
B00KP, Nimzovich defence312023.8%57.9%
B00KP, Nimzovich defence, Bogolyubov variation32020.0%55.9%
B00KP, Nimzovich defence, Marshall gambit616.7%41.7%
B00King's pawn opening362425.9%53.6%
B00Owen defence94326.5%56.7%
B00Reversed Grob (Borg/Basman defence/macho Grob)19417.0%55.4%
B00St. George (Baker) defence19321.2%54.7%
B01Scandinavian (centre counter) defence671127.0%59.9%
B01Scandinavian defence208129.6%57.2%
B01Scandinavian defence, Gruenfeld variation1747.1%52.9%
B01Scandinavian defence, Lasker variation15827.2%63.6%
B01Scandinavian gambit21030.0%46.9%
B01Scandinavian, Anderssen counter-attack333.3%83.3%
B01Scandinavian, Anderssen counter-attack, Goteborg system50.0%100.0%
B01Scandinavian, Icelandic gambit8930.3%50.0%
B01Scandinavian, Kiel variation911.1%72.2%
B01Scandinavian, Marshall variation114528.6%59.4%
B01Scandinavian, Mieses-Kotrvc gambit277.4%51.9%
B01Scandinavian, Pytel-Wade variation423931.7%59.5%
B01Scandinavian, Richter variation2227.3%68.2%
B02Alekhine's defence69731.9%54.9%
B02Alekhine's defence, Brooklyn defence9322.6%61.8%
B02Alekhine's defence, Kmoch variation1127.3%40.9%
B02Alekhine's defence, Krejcik variation3228.1%32.8%
B02Alekhine's defence, Maroczy variation32424.1%47.8%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation2924.1%63.8%
B02Alekhine's defence, Saemisch attack33223.2%58.3%
B02Alekhine's defence, Scandinavian variation52826.7%56.5%
B02Alekhine's defence, Spielmann variation2133.3%54.8%
B02Alekhine's defence, Steiner variation1414.3%50.0%
B02Alekhine's defence, Two pawns' (Lasker's) attack17839.9%48.0%
B02Alekhine's defence, Two pawns' attack, Mikenas variation616.7%58.3%
B02Alekhine's defence, Welling variation6123.0%47.5%
B03Alekhine's defence84924.6%53.5%
B03Alekhine's defence, Balogh variation6920.3%59.4%
B03Alekhine's defence, O'Sullivan gambit166.3%59.4%
B03Alekhine's defence, exchange variation102530.5%58.2%
B03Alekhine's defence, exchange, Karpov variation540.0%40.0%
B03Alekhine's defence, four pawns attack10032.0%59.0%
B03Alekhine's defence, four pawns attack, 6...Nc616921.3%50.9%
B03Alekhine's defence, four pawns attack, 7.Be324428.3%65.0%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.333.3%50.0%
B03Alekhine's defence, four pawns attack, Planinc variation922.2%88.9%
B03Alekhine's defence, four pawns attack, Tartakower variation425.0%62.5%
B03Alekhine's defence, four pawns attack, Trifunovic variation7726.0%66.2%
B03Alekhine's defence, four pawns attack, fianchetto variation5637.5%61.6%
B04Alekhine's defence, modern variation43723.6%61.7%
B04Alekhine's defence, modern, Keres variation23534.9%62.1%
B04Alekhine's defence, modern, Larsen variation160431.9%57.3%
B04Alekhine's defence, modern, Schmid variation14728.6%64.6%
B04Alekhine's defence, modern, fianchetto variation111031.0%54.7%
B05Alekhine's defence, modern variation, 4...Bg4108430.9%64.1%
B05Alekhine's defence, modern, Alekhine variation650.0%58.3%
B05Alekhine's defence, modern, Flohr variation49329.0%64.2%
B05Alekhine's defence, modern, Panov variation2231.8%65.9%
B05Alekhine's defence, modern, Vitolins attack1428.6%35.7%
B06Norwegian defence250.0%75.0%
B06Robatsch (modern) defence1187928.9%56.3%
B06Robatsch defence157928.1%59.1%
B06Robatsch defence, Gurgenidze variation138120.9%63.5%
B06Robatsch defence, Pseudo-Austrian attack122924.9%58.3%
B06Robatsch defence, Two knights variation63230.4%58.2%
B06Robatsch defence, Two knights, Suttles variation252434.1%58.4%
B06Robatsch defence, three pawns attack11818.6%56.8%
B07Pirc defence367224.8%54.4%
B07Pirc, 150 attack89227.0%54.0%
B07Pirc, Byrne variation48624.7%55.8%
B07Pirc, Chinese variation40.0%50.0%
B07Pirc, Holmov system5529.1%52.7%
B07Pirc, Sveshnikov system167726.4%53.0%
B07Pirc, Ufimtsev-Pytel variation102323.4%56.4%
B07Pirc, bayonet (Mariotti) attack5920.3%54.2%
B07Robatsch defence, Geller's system161930.0%56.8%
B08Pirc, classical (two knights) system103628.2%56.5%
B08Pirc, classical system, 5.Be2554931.6%58.3%
B08Pirc, classical, h3 system71629.9%56.1%
B09Pirc, Austrian attack88727.4%59.0%
B09Pirc, Austrian attack, 6.Bd3476230.5%57.8%
B09Pirc, Austrian attack, 6.Be392925.1%55.9%
B09Pirc, Austrian attack, 6.e531628.8%59.7%
B09Pirc, Austrian attack, Ljubojevic variation1827.8%63.9%
B09Pirc, Austrian attack, dragon formation150030.3%54.0%
B10Caro-Kann defence738525.6%53.4%
B10Caro-Kann, Goldman (Spielmann) variation15623.7%49.7%
B10Caro-Kann, Hillbilly attack3735.1%58.1%
B10Caro-Kann, Two knights variation105027.0%55.4%
B10Caro-Kann, anti-Caro-Kann defence147626.5%56.9%
B10Caro-Kann, anti-anti-Caro-Kann defence291333.0%52.0%
B10Caro-Kann, closed (Breyer) variation251024.5%50.0%
B11Caro-Kann, Two knights, 3...Bg4210424.0%53.9%
B12Caro-Kann defence206521.9%57.1%
B12Caro-Kann, 3.Nd253325.5%59.1%
B12Caro-Kann, Edinburgh variation6518.5%70.8%
B12Caro-Kann, Tartakower (fantasy) variation128527.2%55.0%
B12Caro-Kann, advance variation2730924.8%54.6%
B12Caro-Kann, advance, Short variation10219.6%65.7%
B12Caro-Masi defence1414.3%50.0%
B12de Bruycker defence4131.7%52.4%
B13Caro-Kann, Panov-Botvinnik attack206833.0%54.0%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation4546.7%61.1%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1338.5%50.0%
B13Caro-Kann, Panov-Botvinnik, Herzog defence3132.3%54.8%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation633.3%66.7%
B13Caro-Kann, Panov-Botvinnik, normal variation28036.8%48.8%
B13Caro-Kann, exchange variation120227.0%50.5%
B13Caro-Kann, exchange, Rubinstein variation25033.6%54.0%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6898834.0%55.1%
B14Caro-Kann, Panov-Botvinnik attack, 5...g649338.3%53.9%
B15Caro-Kann defence66424.5%50.4%
B15Caro-Kann, Alekhine gambit3351.5%53.0%
B15Caro-Kann, Forgacs variation12736.2%54.3%
B15Caro-Kann, Gurgenidze counter-attack4015.0%57.5%
B15Caro-Kann, Gurgenidze system59429.0%57.4%
B15Caro-Kann, Rasa-Studier gambit2020.0%40.0%
B15Caro-Kann, Tartakower (Nimzovich) variation229634.0%52.7%
B16Caro-Kann, Bronstein-Larsen variation88623.7%62.1%
B17Caro-Kann, Steinitz variation575229.3%53.8%
B18Caro-Kann, classical variation224430.1%54.5%
B18Caro-Kann, classical, 6.h4332331.9%54.2%
B18Caro-Kann, classical, Flohr variation11036.4%59.1%
B18Caro-Kann, classical, Maroczy attack955.6%61.1%
B19Caro-Kann, classical, 7...Nd796926.2%51.9%
B19Caro-Kann, classical, Spassky variation1030728.3%57.4%
B20Sicilian defence833724.7%49.0%
B20Sicilian, Gloria variation1323.1%50.0%
B20Sicilian, Keres variation (2.Ne2)137125.9%53.2%
B20Sicilian, Steinitz variation141626.2%54.1%
B20Sicilian, wing gambit12226.2%46.7%
B20Sicilian, wing gambit, Carlsbad variation5127.5%56.9%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
B20Sicilian, wing gambit, Marshall variation70527.4%38.4%
B20Sicilian, wing gambit, Santasiere variation250.0%75.0%
B21Sicilian, Andreaschek gambit1942.1%57.9%
B21Sicilian, Grand Prix attack279825.4%49.6%
B21Sicilian, Smith-Morra gambit142228.5%50.0%
B22Sicilian, 2.c3, Heidenfeld variation5228.8%43.3%
B22Sicilian, Alapin's variation (2.c3)2113932.3%54.2%
B23Sicilian, Grand Prix attack64325.7%52.6%
B23Sicilian, Grand Prix attack, Schofman variation1827.8%30.6%
B23Sicilian, chameleon variation177426.9%55.7%
B23Sicilian, closed702327.1%53.4%
B23Sicilian, closed, 2...Nc6427627.7%53.0%
B23Sicilian, closed, Korchnoi variation54030.2%48.6%
B24Sicilian, closed70627.2%49.2%
B24Sicilian, closed, Smyslov variation1533.3%70.0%
B25Sicilian, closed29830.5%51.5%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)10319.4%52.4%
B25Sicilian, closed, 6.f4108228.2%50.1%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)16125.5%46.3%
B26Sicilian, closed, 6.Be364825.2%48.1%
B27Sicilian defence12828.9%59.8%
B27Sicilian, Acton extension1323.1%57.7%
B27Sicilian, Hungarian variation1062333.5%57.2%
B27Sicilian, Katalimov variation19324.9%54.4%
B27Sicilian, Quinteros variation10418.3%58.2%
B27Sicilian, Stiletto (Althouse) variation1612.5%68.8%
B28Sicilian, O'Kelly variation108728.1%56.2%
B29Sicilian, Nimzovich-Rubinstein variation70729.7%55.0%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit7536.0%58.0%
B30Sicilian defence517929.2%51.8%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)806029.3%54.9%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)485929.6%55.7%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation1931.6%47.4%
B32Sicilian defence119629.2%51.5%
B32Sicilian, Flohr variation16129.8%58.4%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation209429.5%54.1%
B32Sicilian, Labourdonnais-Loewenthal variation41930.3%52.9%
B32Sicilian, Nimzovich variation2917.2%53.4%
B33Sicilian defence127228.8%53.5%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation137025.1%53.6%
B33Sicilian, Pelikan, Bird variation40626.1%60.3%
B33Sicilian, Pelikan, Chelyabinsk variation633227.4%55.6%
B33Sicilian, Sveshnikov variation341827.3%53.0%
B34Sicilian, accelerated fianchetto, exchange variation3234.4%45.3%
B34Sicilian, accelerated fianchetto, modern variation160232.4%51.2%
B35Sicilian, accelerated fianchetto, modern variation with Bc4546034.1%53.9%
B36Sicilian, accelerated fianchetto, Gurgenidze variation38838.1%54.4%
B36Sicilian, accelerated fianchetto, Maroczy bind146335.3%55.7%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg734335.3%52.9%
B37Sicilian, accelerated fianchetto, Simagin variation1030.0%45.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3296338.7%57.2%
B39Sicilian, accelerated fianchetto, Breyer variation152433.3%60.9%
B40Sicilian defence1048829.1%52.7%
B40Sicilian, Anderssen variation277931.6%55.7%
B40Sicilian, Marshall variation2714.8%44.4%
B40Sicilian, Pin variation (Sicilian counter-attack)17122.8%51.8%
B40Sicilian, Pin, Jaffe variation60.0%66.7%
B40Sicilian, Pin, Koch variation20522.4%72.2%
B41Sicilian, Kan variation29729.0%55.9%
B41Sicilian, Kan, Maroczy bind (Reti variation)121529.5%56.1%
B41Sicilian, Kan, Maroczy bind - Bronstein variation5928.8%56.8%
B42Sicilian, Kan, 5.Bd3505929.7%56.8%
B42Sicilian, Kan, Gipslis variation19528.7%56.9%
B42Sicilian, Kan, Polugaievsky variation315026.9%54.5%
B42Sicilian, Kan, Swiss cheese variation32326.9%57.1%
B43Sicilian, Kan, 5.Nc3792329.3%55.0%
B44Sicilian defence44829.2%52.8%
B44Sicilian, Szen (`anti-Taimanov') variation104231.9%51.2%
B44Sicilian, Szen variation, Dely-Kasparov gambit2441.7%54.2%
B44Sicilian, Szen, hedgehog variation42330.5%48.3%
B45Sicilian, Taimanov variation576027.8%54.5%
B45Sicilian, Taimanov, American attack2356.5%45.7%
B46Sicilian, Taimanov variation592629.1%54.8%
B47Sicilian, Taimanov (Bastrikov) variation1168930.9%54.6%
B48Sicilian, Taimanov variation788428.3%54.1%
B49Sicilian, Taimanov variation322531.8%55.9%
B50Sicilian633328.3%52.5%
B50Sicilian, wing gambit deferred4323.3%51.2%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack343129.7%56.1%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7193134.8%51.2%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit17226.7%43.6%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation168533.2%53.2%
B53Sicilian, Chekhover variation120436.5%50.1%
B53Sicilian, Chekhover, Zaitsev variation6323.8%51.6%
B54Sicilian127227.0%53.4%
B54Sicilian, Prins (Moscow) variation51130.9%52.6%
B55Sicilian, Prins variation, Venice attack13237.1%56.4%
B56Sicilian549226.3%54.5%
B56Sicilian, Venice attack67534.5%62.6%
B57Sicilian, Magnus Smith trap4327.9%53.5%
B57Sicilian, Sozin, Benko variation534629.6%51.1%
B57Sicilian, Sozin, not Scheveningen58930.1%54.2%
B58Sicilian, Boleslavsky variation89933.3%49.1%
B58Sicilian, Boleslavsky, Louma variation4628.3%55.4%
B58Sicilian, classical76435.2%51.4%
B59Sicilian, Boleslavsky variation, 7.Nb316339.3%54.6%
B60Sicilian, Richter-Rauzer188326.8%56.5%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2937.9%53.4%
B60Sicilian, Richter-Rauzer, Larsen variation36325.1%54.4%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd263528.5%60.6%
B62Sicilian, Richter-Rauzer, 6...e618926.5%48.1%
B62Sicilian, Richter-Rauzer, Keres variation56331.1%53.7%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation54532.7%50.1%
B62Sicilian, Richter-Rauzer, Podvebrady variation4134.1%51.2%
B62Sicilian, Richter-Rauzer, Richter attack10.0%0.0%
B63Sicilian, Richter-Rauzer, Rauzer attack50927.1%57.2%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7227928.5%52.2%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f465833.7%54.7%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation293.4%74.1%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4157530.7%56.9%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a61609024.8%51.3%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7776825.3%52.5%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be726027.3%55.2%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf655326.0%56.2%
B70Sicilian, dragon variation83730.6%50.4%
B71Sicilian, dragon, Levenfish variation10838.9%47.2%
B71Sicilian, dragon, Levenfish; Flohr variation812.5%56.3%
B72Sicilian, dragon, 6.Be329027.9%51.6%
B72Sicilian, dragon, classical attack11432.5%54.8%
B72Sicilian, dragon, classical, Amsterdam variation6439.1%44.5%
B72Sicilian, dragon, classical, Grigoriev variation1250.0%66.7%
B72Sicilian, dragon, classical, Nottingham variation9530.5%45.8%
B73Sicilian, dragon, classical, 8.O-O25238.1%55.6%
B73Sicilian, dragon, classical, Richter variation23335.2%49.8%
B73Sicilian, dragon, classical, Zollner gambit2133.3%21.4%
B74Sicilian, dragon, classical, 9.Nb329138.8%50.7%
B74Sicilian, dragon, classical, Alekhine variation3522.9%62.9%
B74Sicilian, dragon, classical, Reti-Tartakower variation20534.6%52.4%
B74Sicilian, dragon, classical, Spielmann variation6628.8%53.8%
B75Sicilian, dragon, Yugoslav attack42429.0%52.9%
B76Sicilian, dragon, Yugoslav attack, 7...O-O64929.4%52.2%
B76Sicilian, dragon, Yugoslav attack, Rauser variation152427.1%59.5%
B77Sicilian, dragon, Yugoslav attack, 9...Bd747025.7%55.2%
B77Sicilian, dragon, Yugoslav attack, 9.Bc49629.2%54.2%
B77Sicilian, dragon, Yugoslav attack, Byrne variation616.7%75.0%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O123024.6%54.3%
B79Sicilian, dragon, Yugoslav attack, 12.h414630.8%64.0%
B80Sicilian, Scheveningen variation145523.8%53.6%
B80Sicilian, Scheveningen, English variation67225.7%51.1%
B80Sicilian, Scheveningen, Vitolins variation12218.0%45.9%
B80Sicilian, Scheveningen, fianchetto variation54128.1%51.6%
B81Sicilian, Scheveningen, Keres attack498426.0%58.9%
B82Sicilian, Scheveningen, 6.f482929.6%55.8%
B82Sicilian, Scheveningen, Tal variation20019.5%59.8%
B83Sicilian, Scheveningen, 6.Be286930.3%51.2%
B83Sicilian, modern Scheveningen90730.5%50.4%
B83Sicilian, modern Scheveningen, main line73836.6%52.7%
B83Sicilian, modern Scheveningen, main line with Nb316724.6%50.0%
B84Sicilian, Scheveningen (Paulsen), classical variation1048429.5%52.0%
B84Sicilian, Scheveningen, classical, Nd7 system10125.7%54.5%
B85Sicilian, Scheveningen, classical25638.3%52.7%
B85Sicilian, Scheveningen, classical main line75240.0%54.5%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc62321.7%50.0%
B85Sicilian, Scheveningen, classical, Maroczy system6833.8%55.1%
B86Sicilian, Sozin attack27627.5%46.0%
B87Sicilian, Sozin with ...a6 and ...b5140628.0%48.5%
B88Sicilian, Sozin, Fischer variation4250.0%51.2%
B88Sicilian, Sozin, Leonhardt variation72833.9%49.7%
B89Sicilian, Sozin, 7.Be3446027.1%49.1%
B89Sicilian, Velimirovic attack176424.7%50.9%
B90Sicilian, Najdorf1420724.9%51.2%
B90Sicilian, Najdorf, Adams attack340624.4%52.8%
B90Sicilian, Najdorf, Byrne (English) attack5420125.2%51.4%
B90Sicilian, Najdorf, Lipnitzky attack250128.9%48.7%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation151827.9%51.2%
B92Sicilian, Najdorf, Opovcensky variation1288130.1%52.5%
B93Sicilian, Najdorf, 6.f4268229.6%49.7%
B94Sicilian, Najdorf, 6.Bg5190025.6%53.6%
B95Sicilian, Najdorf, 6...e6208427.1%54.2%
B96Sicilian, Najdorf, 7.f4245023.8%49.5%
B96Sicilian, Najdorf, Polugayevsky variation13925.9%52.5%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation4520.0%52.2%
B97Sicilian, Najdorf, 7...Qb6318124.6%47.3%
B97Sicilian, Najdorf, Poisoned pawn variation366227.7%44.4%
B98Sicilian, Najdorf variation22124.9%49.5%
B98Sicilian, Najdorf, 7...Be729025.5%53.8%
B98Sicilian, Najdorf, Browne variation9732.0%58.2%
B98Sicilian, Najdorf, Goteborg (Argentine) variation1435.7%46.4%
B99Sicilian, Najdorf, 7...Be7 main line176722.4%54.3%
C00French defence449124.0%54.0%
C00French defence, Steiner variation121727.9%49.9%
C00French, Alapin variation5213.5%43.3%
C00French, Chigorin variation382025.3%51.3%
C00French, King's Indian attack815928.4%50.9%
C00French, Labourdonnais variation69424.9%49.5%
C00French, Pelikan variation9626.0%49.5%
C00French, Reti (Spielmann) variation33825.7%54.6%
C00French, Reversed Philidor formation8229.3%40.2%
C00French, Schlechter variation51730.9%51.6%
C00French, Steinitz attack5438.9%52.8%
C00French, Two knights variation134725.4%50.9%
C00French, Wing gambit6312.7%42.9%
C00Lengfellner system11127.9%61.7%
C00St. George defence77327.3%55.2%
C01French, exchange variation240432.7%53.4%
C01French, exchange, Bogolyubov variation922.2%33.3%
C01French, exchange, Svenonius variation7335.6%57.5%
C02French, advance variation219725.2%53.9%
C02French, advance, Euwe variation483426.0%52.7%
C02French, advance, Milner-Barry gambit13125.2%53.8%
C02French, advance, Nimzovich system34420.1%47.8%
C02French, advance, Nimzovich variation5626.8%29.5%
C02French, advance, Paulsen attack275425.7%53.1%
C02French, advance, Steinitz variation87627.3%51.1%
C02French, advance, Wade variation41328.1%54.7%
C03French, Tarrasch324729.8%56.7%
C03French, Tarrasch, Guimard variation25823.3%60.5%
C03French, Tarrasch, Haberditz variation1711.8%64.7%
C04French, Tarrasch, Guimard main line49126.1%55.8%
C05French, Tarrasch, Botvinnik variation15623.7%57.4%
C05French, Tarrasch, closed variation211624.6%57.2%
C06French, Tarrasch, Leningrad variation5217.3%54.8%
C06French, Tarrasch, closed variation, main line294032.3%55.5%
C07French, Tarrasch, Eliskases variation18038.3%53.1%
C07French, Tarrasch, open variation731833.0%52.9%
C08French, Tarrasch, open, 4.ed ed477239.3%53.7%
C09French, Tarrasch, open variation, main line226737.5%56.0%
C10French, Fort Knox variation47634.7%54.3%
C10French, Frere (Becker) variation5726.3%55.3%
C10French, Marshall variation1435.7%67.9%
C10French, Paulsen variation174227.2%56.2%
C10French, Rubinstein variation1065033.8%53.7%
C10French, Rubinstein, Capablanca line2236.4%54.5%
C11French defence64426.2%49.9%
C11French, Burn variation1057631.2%52.1%
C11French, Henneberger variation3336.4%36.4%
C11French, Steinitz variation209926.7%54.9%
C11French, Steinitz, Boleslavsky variation911726.7%54.8%
C11French, Steinitz, Bradford attack30.0%33.3%
C11French, Steinitz, Gledhill attack5438.9%52.8%
C11French, Swiss variation14531.7%44.1%
C12French, MacCutcheon variation31130.2%51.4%
C12French, MacCutcheon, Bernstein variation2412.5%56.3%
C12French, MacCutcheon, Bogolyubov variation616.7%75.0%
C12French, MacCutcheon, Chigorin variation5234.6%51.9%
C12French, MacCutcheon, Dr. Olland (Dutch) variation3930.8%53.8%
C12French, MacCutcheon, Duras variation366.7%66.7%
C12French, MacCutcheon, Grigoriev variation955.6%50.0%
C12French, MacCutcheon, Janowski variation18225.3%58.8%
C12French, MacCutcheon, Lasker variation50920.0%52.5%
C12French, MacCutcheon, Lasker variation, 8...g680725.2%54.8%
C12French, MacCutcheon, Tartakower variation450.0%50.0%
C12French, MacCutcheon, advance variation1241.7%54.2%
C13French, Albin-Alekhine-Chatard attack61920.2%56.3%
C13French, Albin-Alekhine-Chatard attack, Breyer variation9427.7%55.3%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation837.5%31.3%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation7031.4%57.1%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation922.2%88.9%
C13French, classical2512.0%54.0%
C13French, classical, Anderssen variation4621.7%39.1%
C13French, classical, Anderssen-Richter variation1315.4%30.8%
C13French, classical, Frankfurt variation1618.8%84.4%
C13French, classical, Tartakower variation2626.9%55.8%
C13French, classical, Vistaneckis (Nimzovich) variation40.0%75.0%
C14French, classical variation2615.4%26.9%
C14French, classical, Alapin variation9638.5%58.9%
C14French, classical, Pollock variation1612.5%43.8%
C14French, classical, Rubinstein variation5621.4%55.4%
C14French, classical, Stahlberg variation450.0%75.0%
C14French, classical, Steinitz variation103227.4%58.2%
C14French, classical, Tarrasch variation850.0%62.5%
C15French, Winawer (Nimzovich) variation145932.4%53.5%
C15French, Winawer, Alekhine (Maroczy) gambit48529.7%58.4%
C15French, Winawer, Alekhine gambit90.0%55.6%
C15French, Winawer, Alekhine gambit, Alatortsev variation1100.0%50.0%
C15French, Winawer, Alekhine gambit, Kan variation20334.0%49.0%
C15French, Winawer, Kondratiyev variation1540.0%66.7%
C15French, Winawer, fingerslip variation4619.6%59.8%
C16French, Winawer, Petrosian variation42124.9%54.3%
C16French, Winawer, advance variation126225.0%56.3%
C17French, Winawer, advance variation10524.8%61.0%
C17French, Winawer, advance, 5.a379225.4%57.1%
C17French, Winawer, advance, Bogolyubov variation32828.4%56.3%
C17French, Winawer, advance, Rauzer variation955.6%50.0%
C17French, Winawer, advance, Russian variation7826.9%49.4%
C18French, Winawer, advance variation85120.9%58.2%
C18French, Winawer, classical variation82521.3%56.6%
C19French, Winawer, advance, 6...Ne798325.6%60.5%
C19French, Winawer, advance, Smyslov variation27025.6%59.1%
C19French, Winawer, advance, poisoned pawn variation528524.3%59.1%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation1450.0%53.6%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation139525.5%60.7%
C19French, Winawer, advance, positional main line290023.6%57.7%
C20Alapin's opening11923.5%50.4%
C20KP, Indian opening29128.5%50.3%
C20KP, King's head opening1735.3%58.8%
C20KP, Lopez opening6235.5%45.2%
C20KP, Mengarini's opening9021.1%56.1%
C20KP, Napoleon's opening1741.2%50.0%
C20KP, Patzer opening4928.6%49.0%
C20King's pawn game32521.8%50.9%
C21Centre game34032.1%55.7%
C21Danish gambit8835.2%54.0%
C21Danish gambit, Collijn defence40.0%50.0%
C21Danish gambit, Schlechter defence20.0%50.0%
C21Danish gambit, Soerensen defence6038.3%54.2%
C21Halasz gambit6227.4%37.9%
C22Centre game4124.4%51.2%
C22Centre game, Berger variation42326.2%53.1%
C22Centre game, Charousek variation911.1%38.9%
C22Centre game, Hall variation1833.3%44.4%
C22Centre game, Paulsen attack16134.8%49.1%
C22Centre game, l'Hermet variation20.0%100.0%
C23Bishop's opening45124.4%52.3%
C23Bishop's opening, Calabrese counter-gambit333.3%16.7%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation1711.8%64.7%
C23Bishop's opening, Classical variation13919.4%48.6%
C23Bishop's opening, Lewis counter-gambit633.3%50.0%
C23Bishop's opening, Lewis gambit728.6%42.9%
C23Bishop's opening, Lisitsyn variation1100.0%50.0%
C23Bishop's opening, Philidor counter-attack13135.1%58.0%
C23Bishop's opening, Philidor variation1926.3%55.3%
C24Bishop's opening, Berlin defence189427.8%52.2%
C24Bishop's opening, Ponziani gambit2825.0%37.5%
C24Bishop's opening, Urusov gambit3429.4%47.1%
C24Bishop's opening, Urusov gambit, Panov variation812.5%56.3%
C25Vienna gambit10226.5%52.5%
C25Vienna game83324.7%52.7%
C25Vienna game, Max Lange defence8821.6%52.8%
C25Vienna, Hamppe-Allgaier gambit520.0%30.0%
C25Vienna, Paulsen variation102923.6%50.4%
C25Vienna, Pierce gambit1816.7%36.1%
C25Vienna, Steinitz gambit540.0%60.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation812.5%43.8%
C25Vienna, Steinitz gambit, Zukertort defence1100.0%50.0%
C26Vienna game41527.5%54.7%
C26Vienna, Falkbeer variation16018.1%52.2%
C26Vienna, Mengarini variation4833.3%54.2%
C26Vienna, Paulsen-Mieses variation151830.0%51.3%
C27Boden-Kieseritsky gambit6216.1%48.4%
C27Boden-Kieseritsky gambit, Lichtenhein defence1040.0%40.0%
C27Vienna game42025.5%51.3%
C27Vienna, Alekhine variation17826.4%43.5%
C27Vienna, `Frankenstein-Dracula' variation4226.2%56.0%
C28Vienna game43830.1%50.9%
C29Vienna gambit36828.8%47.6%
C29Vienna gambit, Bardeleben variation1631.3%34.4%
C29Vienna gambit, Breyer variation19333.7%54.1%
C29Vienna gambit, Heyde variation10.0%0.0%
C29Vienna gambit, Kaufmann variation1338.5%65.4%
C29Vienna gambit, Paulsen attack4332.6%55.8%
C29Vienna gambit, Steinitz variation3625.0%48.6%
C30KGD, 2...Nf67223.6%52.1%
C30KGD, Keene's defence6825.0%55.1%
C30KGD, Mafia defence14625.3%64.0%
C30KGD, Norwalde variation1631.3%46.9%
C30KGD, classical counter-gambit1216.7%50.0%
C30KGD, classical variation28820.8%46.9%
C30KGD, classical, 4.c326524.5%55.3%
C30KGD, classical, Hanham variation450.0%25.0%
C30KGD, classical, Heath variation1040.0%40.0%
C30KGD, classical, Marshall attack1233.3%50.0%
C30KGD, classical, Reti variation616.7%75.0%
C30KGD, classical, Soldatenkov variation1931.6%52.6%
C30KGD, classical, Svenonius variation520.0%50.0%
C30King's gambit24326.3%55.6%
C31KGD, Falkbeer counter-gambit12425.0%48.0%
C31KGD, Falkbeer, 3...e42015.0%47.5%
C31KGD, Falkbeer, 4.d32138.1%61.9%
C31KGD, Falkbeer, Morphy gambit1145.5%68.2%
C31KGD, Falkbeer, Nimzovich variation119.1%31.8%
C31KGD, Falkbeer, Rubinstein variation1030.0%35.0%
C31KGD, Falkbeer, Tartakower variation2536.0%70.0%
C31KGD, Nimzovich counter-gambit9426.6%50.5%
C32KGD, Falkbeer, 5.de4932.7%49.0%
C32KGD, Falkbeer, Charousek gambit40.0%75.0%
C32KGD, Falkbeer, Charousek variation10.0%0.0%
C32KGD, Falkbeer, Keres variation1100.0%50.0%
C32KGD, Falkbeer, Reti variation1526.7%46.7%
C32KGD, Falkbeer, Tarrasch variation10.0%100.0%
C32KGD, Falkbeer, main line, 7...Bf51080.0%40.0%
C33KGA, Breyer gambit2638.5%30.8%
C33KGA, Carrera (Basman) gambit4131.7%42.7%
C33KGA, Keres (Mason-Steinitz) gambit5313.2%44.3%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit248.3%41.7%
C33KGA, Lopez-Gianutio counter-gambit, Hein variation250.0%75.0%
C33KGA, Villemson (Steinitz) gambit1233.3%41.7%
C33KGA, bishop's gambit20120.4%52.0%
C33KGA, bishop's gambit, Anderssen variation714.3%78.6%
C33KGA, bishop's gambit, Bledow variation8836.4%45.5%
C33KGA, bishop's gambit, Boden defence1513.3%40.0%
C33KGA, bishop's gambit, Bogolyubov variation5518.2%49.1%
C33KGA, bishop's gambit, Boren-Svenonius variation30.0%66.7%
C33KGA, bishop's gambit, Bryan counter-gambit333.3%50.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence4425.0%42.0%
C33KGA, bishop's gambit, Jaenisch variation16824.4%52.1%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit3522.9%31.4%
C33KGA, bishop's gambit, Maurian defence3826.3%47.4%
C33KGA, bishop's gambit, McDonnell attack250.0%75.0%
C33KGA, bishop's gambit, Morphy variation11127.9%49.1%
C33KGA, bishop's gambit, Paulsen attack1323.1%50.0%
C33KGA, bishop's gambit, Ruy Lopez defence1631.3%53.1%
C33KGA, bishop's gambit, Steinitz defence10426.9%45.2%
C33KGA, bishop's gambit, classical defence1315.4%23.1%
C33King's gambit accepted1315.4%53.8%
C34KGA, Becker defence5817.2%41.4%
C34KGA, Bonsch-Osmolovsky variation6330.2%45.2%
C34KGA, Fischer defence30122.6%46.8%
C34KGA, Gianutio counter-gambit10.0%0.0%
C34KGA, Schallop defence13821.7%51.4%
C34King's knight's gambit9317.2%47.3%
C35KGA, Cunningham defence13620.6%47.8%
C35KGA, Cunningham, Bertin gambit20.0%50.0%
C35KGA, Cunningham, Euwe defence9032.2%48.3%
C36KGA, Abbazia defence (classical defence, modern defence[!])5119.6%52.9%
C36KGA, Abbazia defence, Botvinnik variation20.0%100.0%
C36KGA, Abbazia defence, modern variation30232.5%48.3%
C37KGA, Blachly gambit2619.2%28.8%
C37KGA, Ghulam Kassim gambit10.0%0.0%
C37KGA, King's knight's gambit633.3%33.3%
C37KGA, Lolli gambit (wild Muzio gambit)1100.0%50.0%
C37KGA, MacDonnell gambit250.0%75.0%
C37KGA, Muzio gambit119.1%13.6%
C37KGA, Quaade gambit214.8%21.4%
C37KGA, Rosentreter gambit742.9%50.0%
C37KGA, Salvio gambit1428.6%42.9%
C37KGA, Salvio gambit, Anderssen counter-attack30.0%33.3%
C37KGA, Silberschmidt gambit30.0%0.0%
C37KGA, double Muzio gambit10.0%0.0%
C38KGA, Hanstein gambit2321.7%41.3%
C38KGA, Philidor gambit40.0%25.0%
C38KGA, Philidor gambit, Schultz variation50.0%20.0%
C38King's knight's gambit911.1%50.0%
C39KGA, Allgaier gambit10.0%100.0%
C39KGA, Kieseritsky, Berlin defence7116.9%39.4%
C39KGA, Kieseritsky, Berlin defence, 6.Bc47129.6%43.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence20.0%100.0%
C39KGA, Kieseritsky, Kolisch defence14031.4%49.3%
C39KGA, Kieseritsky, Neumann defence812.5%56.3%
C39KGA, Kieseritsky, Paulsen defence540.0%40.0%
C39KGA, Kieseritsky, Rice gambit2250.0%25.0%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence2254.5%54.5%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence10.0%100.0%
C39King's knight's gambit30.0%33.3%
C40Damiano's defence2927.6%55.2%
C40Greco defence9617.7%64.1%
C40Gunderam defence27122.5%62.9%
C40King's knight opening616.7%41.7%
C40Latvian counter-gambit20027.0%60.5%
C40Latvian gambit, 3.Bc4825.0%75.0%
C40Latvian, Fraser defence258.0%56.0%
C40Latvian, Polerio variation60.0%33.3%
C40QP counter-gambit (elephant gambit)20417.6%62.7%
C40QP counter-gambit, Maroczy gambit7125.4%60.6%
C41Philidor's defence64830.4%56.3%
C41Philidor, Boden variation2218.2%54.5%
C41Philidor, Hanham variation10235.3%56.9%
C41Philidor, Hanham, Delmar variation1136.4%72.7%
C41Philidor, Hanham, Kmoch variation20.0%50.0%
C41Philidor, Hanham, Krause variation3531.4%64.3%
C41Philidor, Hanham, Schlechter variation7226.4%61.8%
C41Philidor, Hanham, Steiner variation3429.4%67.6%
C41Philidor, Improved Hanham variation133027.1%56.5%
C41Philidor, Larsen variation8527.1%66.5%
C41Philidor, Lopez counter-gambit1513.3%80.0%
C41Philidor, Nimzovich (Jaenisch) variation9931.3%48.0%
C41Philidor, Nimzovich variation3537.1%58.6%
C41Philidor, Nimzovich, Klein variation137.7%65.4%
C41Philidor, Nimzovich, Larobok variation5141.2%34.3%
C41Philidor, Nimzovich, Rellstab variation10531.4%63.3%
C41Philidor, Nimzovich, Sokolsky variation520.0%50.0%
C41Philidor, Nimzovich, Sozin variation4517.8%48.9%
C41Philidor, Paulsen attack40.0%100.0%
C41Philidor, Philidor counter-gambit3215.6%51.6%
C41Philidor, Philidor counter-gambit, Zukertort variation1931.6%57.9%
C41Philidor, Philidor counter-gambit, del Rio attack540.0%60.0%
C41Philidor, Steinitz variation1729.4%50.0%
C41Philidor, exchange variation182725.5%57.7%
C42Petrov three knights game73628.3%55.2%
C42Petrov's defence104125.1%53.9%
C42Petrov, Cochrane gambit4816.7%45.8%
C42Petrov, Cozio (Lasker) attack29533.2%51.5%
C42Petrov, Damiano variation4429.5%53.4%
C42Petrov, French attack1618.8%65.6%
C42Petrov, Italian variation15719.1%51.0%
C42Petrov, Kaufmann attack34231.9%56.6%
C42Petrov, Nimzovich attack75532.8%53.8%
C42Petrov, Paulsen attack37126.1%48.4%
C42Petrov, classical attack315931.9%57.1%
C42Petrov, classical attack, Berger variation1936.8%55.3%
C42Petrov, classical attack, Chigorin variation156835.7%55.2%
C42Petrov, classical attack, Jaenisch variation474035.8%56.5%
C42Petrov, classical attack, Krause variation1100.0%50.0%
C42Petrov, classical attack, Marshall variation253629.9%55.3%
C42Petrov, classical attack, Mason variation9739.2%63.9%
C42Petrov, classical attack, Tarrasch variation1030.0%75.0%
C42Petrov, classical attack, close variation21630.6%54.6%
C43Petrov, Urusov gambit468.7%45.7%
C43Petrov, modern (Steinitz) attack16323.9%61.0%
C43Petrov, modern attack, Bardeleben variation1717.6%67.6%
C43Petrov, modern attack, Steinitz variation1127.3%59.1%
C43Petrov, modern attack, Symmetrical variation739232.7%54.1%
C43Petrov, modern attack, Trifunovic variation8633.7%51.7%
C43Petrov, modern attack, main line56931.5%57.9%
C44Dresden opening6020.0%45.0%
C44Inverted Hanham5425.9%48.1%
C44Inverted Hungarian5628.6%50.0%
C44King's pawn game8427.4%47.0%
C44Konstantinopolsky opening3925.6%46.2%
C44Ponziani counter-gambit29321.2%52.6%
C44Ponziani counter-gambit, Cordel variation10.0%100.0%
C44Ponziani counter-gambit, Schmidt attack10.0%0.0%
C44Ponziani opening22922.7%56.3%
C44Ponziani, Caro variation15031.3%49.0%
C44Ponziani, Fraser defence366.7%33.3%
C44Ponziani, Jaenisch counter-attack85330.8%47.7%
C44Ponziani, Leonhardt variation7135.2%51.4%
C44Ponziani, Reti variation166.3%53.1%
C44Ponziani, Romanishin variation1163.6%59.1%
C44Ponziani, Steinitz variation13736.5%51.8%
C44Scotch gambit11125.2%50.5%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack1100.0%50.0%
C44Scotch gambit, Benima defence6429.7%50.8%
C44Scotch gambit, Dubois-Reti defence78530.8%49.6%
C44Scotch opening7926.6%43.7%
C44Scotch, Goering gambit19830.8%50.3%
C44Scotch, Goering gambit, Bardeleben variation1127.3%40.9%
C44Scotch, Lolli variation8017.5%52.5%
C44Scotch, Relfsson gambit ('MacLopez')4610.9%44.6%
C44Tayler opening825.0%25.0%
C45Scotch game392031.4%53.3%
C45Scotch, Blackburne attack2356.5%54.3%
C45Scotch, Blumenfeld attack1145.5%22.7%
C45Scotch, Fraser attack10.0%100.0%
C45Scotch, Ghulam Kassim variation742.9%64.3%
C45Scotch, Horwitz attack3638.9%55.6%
C45Scotch, Meitner variation4235.7%53.6%
C45Scotch, Mieses variation218533.0%51.2%
C45Scotch, Paulsen attack2138.1%38.1%
C45Scotch, Potter variation32633.4%48.3%
C45Scotch, Pulling counter-attack3522.9%51.4%
C45Scotch, Romanishin variation3826.3%42.1%
C45Scotch, Rosenthal variation10.0%0.0%
C45Scotch, Schmidt variation105640.3%50.2%
C45Scotch, Steinitz variation6225.8%46.8%
C45Scotch, Tartakower variation1833.3%50.0%
C46Four knights game121429.2%51.6%
C46Four knights, Gunsberg variation14531.0%43.1%
C46Four knights, Italian variation47330.0%49.9%
C46Four knights, Schultze-Mueller gambit2733.3%38.9%
C46Three knights game35525.4%54.6%
C46Three knights, Schlechter variation1833.3%66.7%
C46Three knights, Steinitz variation21422.9%53.5%
C46Three knights, Steinitz, Rosenthal variation1952.6%57.9%
C47Four knights, Belgrade gambit29823.8%45.5%
C47Four knights, Scotch variation6237.1%60.5%
C47Four knights, Scotch, 4...exd482536.5%50.7%
C47Four knights, Scotch, Krause variation25730.4%53.7%
C48Four knights, Bardeleben variation922.2%55.6%
C48Four knights, Marshall variation1513.3%53.3%
C48Four knights, Ranken variation3023.3%45.0%
C48Four knights, Rubinstein counter-gambit173925.8%53.8%
C48Four knights, Rubinstein counter-gambit, 5.Be21323.1%57.7%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1735.3%52.9%
C48Four knights, Rubinstein counter-gambit, Henneberger variation5036.0%62.0%
C48Four knights, Rubinstein counter-gambit, exchange variation13641.2%48.5%
C48Four knights, Spanish variation37927.7%52.1%
C48Four knights, Spanish, classical defence19029.5%52.6%
C48Four knights, Spielmann variation633.3%50.0%
C49Four knights13435.1%50.4%
C49Four knights, Gunsberg counter-attack250.0%75.0%
C49Four knights, Janowski variation2138.1%38.1%
C49Four knights, Nimzovich (Paulsen) variation7843.6%53.8%
C49Four knights, Svenonius variation30.0%66.7%
C49Four knights, double Ruy Lopez37342.6%56.7%
C49Four knights, symmetrical variation54931.5%49.5%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C49Four knights, symmetrical, Capablanca variation3342.4%57.6%
C49Four knights, symmetrical, Maroczy system9339.8%53.2%
C49Four knights, symmetrical, Metger unpin49235.0%52.2%
C49Four knights, symmetrical, Pillsbury variation4725.5%42.6%
C49Four knights, symmetrical, Tarrasch variation540.0%60.0%
C50Giuoco Pianissimo219430.2%52.5%
C50Giuoco Pianissimo, Canal variation24130.7%51.5%
C50Giuoco Pianissimo, Italian four knights variation56829.2%55.6%
C50Giuoco Piano311530.0%51.4%
C50Giuoco Piano, four knights variation15127.8%50.3%
C50Hungarian defence14136.2%53.5%
C50King's pawn game40923.0%54.5%
C50Rousseau gambit50.0%60.0%
C51Evans counter-gambit30.0%33.3%
C51Evans gambit1010.0%25.0%
C51Evans gambit declined3727.0%45.9%
C51Evans gambit declined, 5.a411228.6%49.1%
C51Evans gambit declined, Cordel variation1330.8%30.8%
C51Evans gambit declined, Showalter variation2433.3%50.0%
C51Evans gambit, 5...Be71540.0%46.7%
C51Evans gambit, Cordel variation16630.1%49.4%
C51Evans gambit, Goering attack1127.3%59.1%
C51Evans gambit, Morphy attack1338.5%57.7%
C51Evans gambit, Paulsen variation3611.1%44.4%
C51Evans gambit, Steinitz variation10.0%100.0%
C51Evans gambit, Stone-Ware variation6421.9%45.3%
C51Evans gambit, normal variation1233.3%41.7%
C52Evans gambit29525.1%39.7%
C52Evans gambit, Alapin-Steinitz variation450.0%75.0%
C52Evans gambit, Lasker defence1040.0%50.0%
C52Evans gambit, Leonhardt variation475.0%62.5%
C52Evans gambit, Levenfish variation250.0%25.0%
C52Evans gambit, Richardson attack616.7%25.0%
C52Evans gambit, Sokolsky variation10.0%0.0%
C52Evans gambit, Tartakower attack13225.8%50.0%
C52Evans gambit, Waller attack616.7%41.7%
C52Evans gambit, compromised defence4015.0%52.5%
C52Evans gambit, compromised defence, Paulsen variation1625.0%68.8%
C53Giuoco Piano724828.4%52.1%
C53Giuoco Piano, Anderssen variation2445.8%52.1%
C53Giuoco Piano, Bird's attack15126.5%51.7%
C53Giuoco Piano, LaBourdonnais variation2142.9%64.3%
C53Giuoco Piano, Mestel variation616.7%58.3%
C53Giuoco Piano, Tarrasch variation425.0%62.5%
C53Giuoco Piano, centre-holding variation4219.0%54.8%
C53Giuoco Piano, close variation8027.5%53.8%
C54Giuoco Piano21428.5%55.4%
C54Giuoco Piano, Greco variation1100.0%50.0%
C54Giuoco Piano, Greco's attack425.0%37.5%
C54Giuoco Piano, Moeller (Therkatz) attack2544.0%38.0%
C55Giuoco piano1100.0%50.0%
C55Two knights defence18226.4%47.3%
C55Two knights defence (Modern bishop's opening)151930.2%55.7%
C55Two knights defence, Keidanz variation1100.0%50.0%
C55Two knights defence, Perreux variation4032.5%51.3%
C55Two knights, Max Lange attack15223.7%47.4%
C55Two knights, Max Lange attack, Krause variation250.0%75.0%
C55Two knights, Max Lange attack, Marshall variation450.0%50.0%
C55Two knights, Max Lange attack, Schlechter variation14429.9%49.0%
C55Two knights, Max Lange attack, Steinitz variation911.1%61.1%
C56Two knights defence7934.2%51.3%
C56Two knights defence, Canal variation2748.1%42.6%
C57Two knights defence7621.1%36.8%
C57Two knights defence, Fegatello attack7936.7%46.2%
C57Two knights defence, Fegatello attack, Leonhardt variation30.0%0.0%
C57Two knights defence, Fegatello attack, Polerio defence10.0%0.0%
C57Two knights defence, Fritz variation2020.0%60.0%
C57Two knights defence, Fritz, Gruber variation1833.3%55.6%
C57Two knights defence, Lolli attack2020.0%55.0%
C57Two knights defence, Pincus variation933.3%61.1%
C57Two knights defence, Ulvestad variation4926.5%54.1%
C57Two knights defence, Wilkes Barre (Traxler) variation8316.9%60.2%
C58Two knights defence31224.4%57.4%
C58Two knights defence, Blackburne variation450.0%75.0%
C58Two knights defence, Bogolyubov variation8017.5%57.5%
C58Two knights defence, Colman variation119.1%77.3%
C58Two knights defence, Kieseritsky variation3727.0%54.1%
C58Two knights defence, Paoli variation1216.7%75.0%
C58Two knights defence, Yankovich variation540.0%40.0%
C59Two knights defence18426.1%47.8%
C59Two knights defence, Goering variation20.0%50.0%
C59Two knights defence, Knorre variation1100.0%50.0%
C59Two knights defence, Steinitz variation21427.1%57.5%
C60Ruy Lopez (Spanish opening)19825.8%52.3%
C60Ruy Lopez, Brentano defence616.7%58.3%
C60Ruy Lopez, Cozio defence55828.1%57.6%
C60Ruy Lopez, Cozio defence, Paulsen variation3737.8%51.4%
C60Ruy Lopez, Lucena defence2623.1%46.2%
C60Ruy Lopez, Nuernberg variation1936.8%44.7%
C60Ruy Lopez, Vinogradov variation933.3%50.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence56734.7%53.5%
C61Ruy Lopez, Bird's defence49431.0%56.4%
C61Ruy Lopez, Bird's defence, Paulsen variation1729.4%44.1%
C62Ruy Lopez, old Steinitz defence72727.6%55.8%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack2817.9%69.6%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation933.3%61.1%
C63Ruy Lopez, Schliemann defence49427.7%57.0%
C63Ruy Lopez, Schliemann defence, Berger variation83634.2%56.1%
C64Ruy Lopez, Cordel gambit7326.0%67.8%
C64Ruy Lopez, classical (Cordel) defence77931.7%52.6%
C64Ruy Lopez, classical defence, 4.c347927.8%53.1%
C64Ruy Lopez, classical defence, Benelux variation 60133.1%51.2%
C64Ruy Lopez, classical defence, Boden variation1100.0%50.0%
C64Ruy Lopez, classical defence, Charousek variation2420.8%64.6%
C64Ruy Lopez, classical defence, Zaitsev variation825.0%37.5%
C65Ruy Lopez, Berlin defence647929.7%51.7%
C65Ruy Lopez, Berlin defence, 4.O-O25728.8%61.1%
C65Ruy Lopez, Berlin defence, Anderssen variation728.6%14.3%
C65Ruy Lopez, Berlin defence, Beverwijk variation61729.7%53.7%
C65Ruy Lopez, Berlin defence, Duras variation3234.4%45.3%
C65Ruy Lopez, Berlin defence, Kaufmann variation1118.2%45.5%
C65Ruy Lopez, Berlin defence, Mortimer variation2010.0%65.0%
C65Ruy Lopez, Berlin defence, Nyholm attack9435.1%52.7%
C66Ruy Lopez, Berlin defence, 4.O-O, d612440.3%55.6%
C66Ruy Lopez, Berlin defence, hedgehog variation17139.8%52.6%
C66Ruy Lopez, closed Berlin defence, Bernstein variation3438.2%45.6%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%75.0%
C66Ruy Lopez, closed Berlin defence, Showalter variation6847.1%60.3%
C66Ruy Lopez, closed Berlin defence, Wolf variation14439.6%56.6%
C67Ruy Lopez, Berlin defence, Cordel variation4637.0%59.8%
C67Ruy Lopez, Berlin defence, Minckwitz variation5738.6%63.2%
C67Ruy Lopez, Berlin defence, Pillsbury variation366.7%33.3%
C67Ruy Lopez, Berlin defence, Rio de Janeiro variation850.0%75.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation4643.5%56.5%
C67Ruy Lopez, Berlin defence, Trifunovic variation30.0%100.0%
C67Ruy Lopez, Berlin defence, Winawer attack1070.0%45.0%
C67Ruy Lopez, Berlin defence, Zukertort variation1656.3%46.9%
C67Ruy Lopez, Berlin defence, open variation1027534.8%52.8%
C67Ruy Lopez, open Berlin defence, 5...Be712333.3%55.7%
C67Ruy Lopez, open Berlin defence, Showalter variation425.0%62.5%
C67Ruy Lopez, open Berlin defence, l'Hermet variation10635.8%43.4%
C68Ruy Lopez, exchange variation34724.8%57.1%
C68Ruy Lopez, exchange, Alekhine variation7732.5%43.5%
C68Ruy Lopez, exchange, Keres variation31835.8%50.6%
C68Ruy Lopez, exchange, Romanovsky variation1926.3%55.3%
C69Ruy Lopez, exchange variation, 5.O-O86830.0%55.0%
C69Ruy Lopez, exchange variation, Alapin gambit16132.3%53.4%
C69Ruy Lopez, exchange, Bronstein variation58430.5%51.5%
C69Ruy Lopez, exchange, Gligoric variation64435.2%54.1%
C70Ruy Lopez8429.8%53.0%
C70Ruy Lopez, Alapin's defence deferred70.0%42.9%
C70Ruy Lopez, Caro variation9927.3%55.1%
C70Ruy Lopez, Classical defence deferred53626.3%52.0%
C70Ruy Lopez, Cozio defence deferred19932.2%52.3%
C70Ruy Lopez, Graz variation1136.4%54.5%
C70Ruy Lopez, Schliemann defence deferred5119.6%54.9%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation26026.5%54.8%
C70Ruy Lopez, fianchetto defence deferred3638.9%61.1%
C71Ruy Lopez, modern Steinitz defence15627.6%52.2%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation22829.8%53.5%
C71Ruy Lopez, modern Steinitz defence, Three knights variation2825.0%58.9%
C72Ruy Lopez, modern Steinitz defence, 5.O-O58230.8%55.9%
C73Ruy Lopez, modern Steinitz defence, Alapin variation33327.3%54.5%
C73Ruy Lopez, modern Steinitz defence, Richter variation25232.5%50.8%
C74Ruy Lopez, Siesta, Kopayev variation14227.5%53.9%
C74Ruy Lopez, modern Steinitz defence8736.8%55.2%
C74Ruy Lopez, modern Steinitz defence, siesta variation6526.2%45.4%
C75Ruy Lopez, modern Steinitz defence34927.5%59.0%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation15033.3%59.3%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation65028.0%50.9%
C77Ruy Lopez, Anderssen variation147130.2%50.0%
C77Ruy Lopez, Morphy defence41833.5%54.5%
C77Ruy Lopez, Morphy defence, Duras variation11131.5%48.2%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)20031.0%51.0%
C77Ruy Lopez, Wormald (Alapin) attack69433.0%50.5%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C77Ruy Lopez, four knights (Tarrasch) variation31930.7%55.8%
C78Ruy Lopez, ...b5 & ...d610027.0%47.5%
C78Ruy Lopez, 5.O-O335731.5%54.4%
C78Ruy Lopez, Archangelsk (counterthrust) variation438829.2%54.0%
C78Ruy Lopez, Moeller defence81830.4%52.1%
C78Ruy Lopez, Rabinovich variation10.0%100.0%
C78Ruy Lopez, Wing attack2343.5%65.2%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)37532.3%52.7%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1844.4%50.0%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1421.4%67.9%
C80Ruy Lopez, open (Tarrasch) defence12638.9%48.8%
C80Ruy Lopez, open, 6.d44928.6%59.2%
C80Ruy Lopez, open, 7.Bb351630.4%51.8%
C80Ruy Lopez, open, 8...Be6139232.5%46.4%
C80Ruy Lopez, open, 8.de1921.1%52.6%
C80Ruy Lopez, open, Berger variation666.7%33.3%
C80Ruy Lopez, open, Bernstein variation103636.9%57.9%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit1163.6%68.2%
C80Ruy Lopez, open, Friess attack850.0%37.5%
C80Ruy Lopez, open, Harksen gambit50.0%60.0%
C80Ruy Lopez, open, Richter variation30.0%33.3%
C80Ruy Lopez, open, Riga variation4129.3%58.5%
C80Ruy Lopez, open, Schlechter defence2437.5%31.3%
C80Ruy Lopez, open, Tartakower variation1442.9%57.1%
C80Ruy Lopez, open, Zukertort variation714.3%50.0%
C81Ruy Lopez, open, Howell attack10239.2%57.8%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1752.9%61.8%
C82Ruy Lopez, open, 9.c3616.7%58.3%
C82Ruy Lopez, open, Berlin variation2030.0%60.0%
C82Ruy Lopez, open, Dilworth variation9226.1%52.2%
C82Ruy Lopez, open, Italian variation9031.1%61.1%
C82Ruy Lopez, open, Motzko attack8638.4%52.9%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation850.0%37.5%
C82Ruy Lopez, open, St. Petersburg variation30437.2%59.4%
C83Ruy Lopez, open, 9...Be7, 10.Re12231.8%56.8%
C83Ruy Lopez, open, Breslau variation50.0%80.0%
C83Ruy Lopez, open, Malkin variation1428.6%71.4%
C83Ruy Lopez, open, classical defence20537.6%56.8%
C84Ruy Lopez, closed defence134132.4%51.7%
C84Ruy Lopez, closed, centre attack23631.4%50.0%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)170331.5%53.2%
C86Ruy Lopez, Worrall attack10027.0%57.5%
C86Ruy Lopez, Worrall attack, sharp line28932.9%49.7%
C86Ruy Lopez, Worrall attack, solid line27031.9%51.1%
C87Ruy Lopez, closed, Averbach variation39330.3%57.4%
C88Ruy Lopez, Noah's ark trap50.0%60.0%
C88Ruy Lopez, Trajkovic counter-attack29526.4%53.6%
C88Ruy Lopez, closed429927.7%48.3%
C88Ruy Lopez, closed, 7...O-O1039030.1%51.9%
C88Ruy Lopez, closed, 7...d6, 8.d413324.1%37.6%
C88Ruy Lopez, closed, 8.c35324.5%53.8%
C88Ruy Lopez, closed, Balla variation2937.9%63.8%
C88Ruy Lopez, closed, anti-Marshall 8.a4176329.8%52.1%
C89Ruy Lopez, Marshall counter-attack484834.5%51.7%
C89Ruy Lopez, Marshall counter-attack, 11...c6132935.7%47.7%
C89Ruy Lopez, Marshall, Herman Steiner variation5111.8%54.9%
C89Ruy Lopez, Marshall, Kevitz variation1827.8%52.8%
C89Ruy Lopez, Marshall, main line, 12.d2d4156628.2%54.7%
C89Ruy Lopez, Marshall, main line, 14...Qh3116940.4%47.6%
C89Ruy Lopez, Marshall, main line, Spassky variation1100.0%50.0%
C90Ruy Lopez, closed (with ...d6)254227.8%49.3%
C90Ruy Lopez, closed, Lutikov variation2948.3%51.7%
C90Ruy Lopez, closed, Pilnik variation321925.8%52.5%
C90Ruy Lopez, closed, Suetin variation6124.6%51.6%
C91Ruy Lopez, closed, 9.d4416427.6%56.1%
C91Ruy Lopez, closed, Bogolyubov variation673232.6%51.9%
C92Ruy Lopez, closed, 9.h358027.2%55.2%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)374032.8%54.3%
C92Ruy Lopez, closed, Keres (9...a5) variation5123.5%58.8%
C92Ruy Lopez, closed, Kholmov variation19927.1%58.8%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation35033.1%64.3%
C93Ruy Lopez, closed, Smyslov defence27133.2%57.9%
C94Ruy Lopez, closed, Breyer defence12738.6%53.1%
C95Ruy Lopez, closed, Breyer, Borisenko variation240830.6%56.2%
C95Ruy Lopez, closed, Breyer, Gligoric variation8021.3%65.6%
C95Ruy Lopez, closed, Breyer, Simagin variation8043.8%61.9%
C96Ruy Lopez, closed (10...c5)132830.1%59.8%
C96Ruy Lopez, closed (8...Na5)5726.3%53.5%
C96Ruy Lopez, closed, Borisenko defence8228.0%57.9%
C96Ruy Lopez, closed, Keres (...Nd7) defence38838.7%60.6%
C96Ruy Lopez, closed, Rossolimo defence616.7%75.0%
C97Ruy Lopez, closed, Chigorin defence184623.2%60.5%
C98Ruy Lopez, closed, Chigorin, 12...Nc628429.9%62.9%
C98Ruy Lopez, closed, Chigorin, Rauzer attack1838.9%52.8%
C99Ruy Lopez, closed, Chigorin, 12...c5d4225334.8%58.8%
D00Blackmar gambit12233.6%43.9%
D00Blackmar-Diemer gambit4323.3%53.5%
D00Blackmar-Diemer, Euwe defence1612.5%50.0%
D00Blackmar-Diemer, Lemberg counter-gambit250.0%75.0%
D00Levitsky attack (Queen's bishop attack)314225.7%50.0%
D00Queen's pawn game268526.9%51.0%
D00Queen's pawn, Anti-Veresov728.6%71.4%
D00Queen's pawn, Chigorin variation171122.6%51.4%
D00Queen's pawn, Mason variation240625.5%51.7%
D00Queen's pawn, Mason variation, Steinitz counter-gambit73629.6%49.7%
D00Queen's pawn, stonewall attack12128.9%48.3%
D01Richter-Veresov attack150526.9%46.5%
D01Richter-Veresov attack, Richter variation7339.7%43.2%
D01Richter-Veresov attack, Veresov variation6524.6%53.8%
D02Queen's bishop game397328.8%51.5%
D02Queen's pawn game1677028.2%53.2%
D02Queen's pawn game, Chigorin variation193825.9%54.3%
D02Queen's pawn game, Krause variation93432.9%52.1%
D03Torre attack (Tartakower variation)110324.0%50.2%
D04Queen's pawn game321432.3%52.6%
D05Colle system81830.6%52.2%
D05Queen's pawn game272429.9%52.8%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation83032.4%55.7%
D05Queen's pawn game, Zukertort variation5332.1%59.4%
D06QGD, Grau (Sahovic) defence241224.3%57.0%
D06QGD, Marshall defence42428.1%59.8%
D06QGD, symmetrical (Austrian) defence14529.0%55.9%
D06Queen's Gambit2119.0%57.1%
D07QGD, Chigorin defence310327.2%57.8%
D07QGD, Chigorin defence, Janowski variation85524.4%61.0%
D08QGD, Albin counter-gambit32631.9%52.5%
D08QGD, Albin counter-gambit, Alapin variation4440.9%54.5%
D08QGD, Albin counter-gambit, Balogh variation10.0%0.0%
D08QGD, Albin counter-gambit, Janowski variation10.0%100.0%
D08QGD, Albin counter-gambit, Krenosz variation250.0%75.0%
D08QGD, Albin counter-gambit, Lasker trap10.0%0.0%
D09QGD, Albin counter-gambit, 5.g315733.8%57.0%
D10QGD Slav defence626430.5%54.5%
D10QGD Slav defence, Alekhine variation60820.4%56.4%
D10QGD Slav defence, exchange variation433432.2%52.7%
D10QGD Slav, Winawer counter-gambit33828.1%55.8%
D11QGD Slav, 3.Nf3688829.5%54.6%
D11QGD Slav, 4.e3698829.6%55.9%
D11QGD Slav, Breyer variation30328.4%54.8%
D12QGD Slav, 4.e3 Bf51084928.7%54.6%
D12QGD Slav, Amsterdam variation7435.1%48.6%
D12QGD Slav, Landau variation1100.0%50.0%
D12QGD Slav, exchange variation49125.7%53.2%
D13QGD Slav, exchange variation148632.5%53.3%
D14QGD Slav, exchange variation, 6.Bf4 Bf594831.4%50.7%
D14QGD Slav, exchange, Trifunovic variation26240.5%51.1%
D15QGD Slav accepted45627.9%50.5%
D15QGD Slav, 4.Nc3449729.2%53.3%
D15QGD Slav, 5.e3 (Alekhine variation)45922.2%49.5%
D15QGD Slav, Schlechter variation37330.8%55.4%
D15QGD Slav, Slav gambit55225.0%49.6%
D15QGD Slav, Suechting variation10420.2%53.4%
D15QGD Slav, Tolush-Geller gambit40124.2%45.5%
D16QGD Slav accepted, Alapin variation35723.0%70.6%
D16QGD Slav, Smyslov variation16223.5%60.5%
D16QGD Slav, Soultanbeieff variation27639.5%57.1%
D16QGD Slav, Steiner variation47525.9%59.5%
D17QGD Slav, Carlsbad variation73331.9%52.8%
D17QGD Slav, Czech defence94935.7%53.7%
D17QGD Slav, Krause attack87227.2%58.0%
D17QGD Slav, Wiesbaden variation73327.6%58.9%
D18QGD Slav, Dutch variation100933.1%57.0%
D18QGD Slav, Dutch, Lasker variation3520.0%67.1%
D19QGD Slav, Dutch variation283329.7%56.5%
D19QGD Slav, Dutch variation, main line55135.9%52.5%
D20QGA, 3.e4449428.9%56.1%
D20QGA, Linares variation7428.4%54.7%
D20QGA, Schwartz defence2100.0%50.0%
D20Queen's gambit accepted225930.2%55.4%
D21QGA, 3.Nf3154426.4%55.3%
D21QGA, Alekhine defense, Borisenko-Furman variation5330.2%37.7%
D21QGA, Ericson variation3138.7%54.8%
D22QGA, Alekhine defence55731.2%57.3%
D22QGA, Alekhine defence, Alatortsev variation1145.5%68.2%
D22QGA, Haberditz variation36932.0%59.9%
D23QGA, Mannheim variation70731.5%54.1%
D23Queen's gambit accepted19730.5%49.2%
D24QGA, 4.Nc335331.7%54.4%
D24QGA, Bogolyubov variation38417.4%45.4%
D25QGA, 4.e358729.5%57.7%
D25QGA, Flohr variation9527.4%61.1%
D25QGA, Janowsky-Larsen variation86929.0%56.8%
D25QGA, Smyslov variation21031.4%57.6%
D26QGA, 4...e690331.8%52.9%
D26QGA, classical variation144134.4%54.4%
D26QGA, classical variation, 6.O-O48834.8%57.8%
D26QGA, classical, Furman variation560.0%50.0%
D26QGA, classical, Steinitz variation16845.8%60.4%
D27QGA, classical, 6...a6618936.7%54.1%
D27QGA, classical, Geller variation8733.3%43.1%
D27QGA, classical, Rubinstein variation466334.8%55.6%
D28QGA, classical, 7...b530434.9%55.6%
D28QGA, classical, 7.Qe216838.7%55.7%
D29QGA, classical, 8...Bb780531.9%47.8%
D29QGA, classical, Smyslov variation9628.1%54.7%
D30QGD369532.6%52.3%
D30QGD Slav148433.2%53.6%
D30QGD Slav, Semmering variation37635.9%52.3%
D30QGD, Capablanca variation6221.0%47.6%
D30QGD, Capablanca-Duras variation83728.3%52.5%
D30QGD, Hastings variation76635.6%50.5%
D30QGD, Spielmann variation540.0%80.0%
D30QGD, Stonewall variation333.3%83.3%
D30QGD, Vienna variation157336.9%53.9%
D30Queen's gambit declined790031.1%53.6%
D31QGD, 3.Nc3123427.6%55.1%
D31QGD, Alapin variation4615.2%40.2%
D31QGD, Charousek (Petrosian) variation295128.8%53.7%
D31QGD, Janowski variation24735.6%55.9%
D31QGD, semi-Slav143130.9%53.9%
D31QGD, semi-Slav, Abrahams variation119129.4%46.3%
D31QGD, semi-Slav, Junge variation4221.4%63.1%
D31QGD, semi-Slav, Koomen variation757.1%57.1%
D31QGD, semi-Slav, Marshall gambit384528.9%55.4%
D31QGD, semi-Slav, Noteboom variation85328.3%52.0%
D32QGD, Tarrasch defence46731.3%54.8%
D32QGD, Tarrasch defence, 4.cd ed4723.4%47.9%
D32QGD, Tarrasch defence, Marshall gambit2532.0%52.0%
D32QGD, Tarrasch defence, Tarrasch gambit728.6%42.9%
D32QGD, Tarrasch, von Hennig-Schara gambit9231.5%58.2%
D33QGD, Tarrasch, Folkestone (Swedish) variation7536.0%55.3%
D33QGD, Tarrasch, Prague variation14633.6%58.6%
D33QGD, Tarrasch, Schlechter-Rubinstein system1723.5%52.9%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%75.0%
D33QGD, Tarrasch, Wagner variation3125.8%64.5%
D34QGD, Tarrasch, Bogolyubov variation742.9%21.4%
D34QGD, Tarrasch, Prague variation, 7...Be765732.4%57.6%
D34QGD, Tarrasch, Prague variation, 9.Bg5157836.9%56.3%
D34QGD, Tarrasch, Prague variation, Normal position159335.5%57.8%
D34QGD, Tarrasch, Reti variation7038.6%56.4%
D34QGD, Tarrasch, Stoltz variation20.0%100.0%
D35QGD, 3...Nf621331.9%43.2%
D35QGD, Harrwitz attack13635.3%51.5%
D35QGD, exchange variation41032.4%55.5%
D35QGD, exchange, Saemisch variation32828.7%53.4%
D35QGD, exchange, chameleon variation1827.8%63.9%
D35QGD, exchange, positional line317428.4%53.4%
D35QGD, exchange, positional line, 5...c6214928.3%55.3%
D36QGD, exchange, positional line, 6.Qc253232.9%51.8%
D37QGD, 4.Nf3710332.7%53.4%
D37QGD, classical variation (5.Bf4)941733.0%54.0%
D38QGD, Ragozin variation969732.4%53.9%
D39QGD, Ragozin, Vienna variation165236.5%50.4%
D40QGD, Semi-Tarrasch defence102933.4%51.4%
D40QGD, Semi-Tarrasch defence, Pillsbury variation5440.7%50.0%
D40QGD, Semi-Tarrasch, symmetrical variation9332.3%49.5%
D41QGD, Semi-Tarrasch with e336537.0%54.9%
D41QGD, Semi-Tarrasch, 5.cd108237.2%56.5%
D41QGD, Semi-Tarrasch, Kmoch variation4261.9%59.5%
D41QGD, Semi-Tarrasch, San Sebastian variation8023.8%69.4%
D42QGD, Semi-Tarrasch, 7.Bd375137.0%57.8%
D43QGD semi-Slav2652829.3%53.8%
D43QGD semi-Slav, Hastings variation825.0%25.0%
D44QGD semi-Slav, 5.Bg5 dc50632.4%48.8%
D44QGD semi-Slav, Botvinnik system (anti-Meran)41324.7%48.9%
D44QGD semi-Slav, Ekstrom variation5521.8%40.0%
D44QGD semi-Slav, anti-Meran gambit219126.8%59.9%
D44QGD semi-Slav, anti-Meran, Alatortsev system5111.8%60.8%
D44QGD semi-Slav, anti-Meran, Lilienthal variation49121.4%58.8%
D44QGD semi-Slav, anti-Meran, Szabo variation23820.6%39.7%
D45QGD semi-Slav, 5...Nd7143226.8%51.0%
D45QGD semi-Slav, 5.e3156128.7%57.0%
D45QGD semi-Slav, Rubinstein (anti-Meran) system3135.5%59.7%
D45QGD semi-Slav, Stoltz variation4561331.0%52.7%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)435132.5%54.1%
D45QGD semi-Slav, stonewall defence3016.7%61.7%
D46QGD semi-Slav, 6.Bd311228.6%51.8%
D46QGD semi-Slav, Bogolyubov variation46030.7%56.6%
D46QGD semi-Slav, Chigorin defence89932.7%54.4%
D46QGD semi-Slav, Romih variation24727.9%64.2%
D47QGD semi-Slav, 7.Bc489126.9%57.9%
D47QGD semi-Slav, Meran variation334731.6%53.2%
D47QGD semi-Slav, Meran, Wade variation2389129.6%53.0%
D47QGD semi-Slav, neo-Meran (Lundin variation)76631.1%56.4%
D48QGD semi-Slav, Meran42623.5%47.2%
D48QGD semi-Slav, Meran, 8...a6822532.0%49.0%
D48QGD semi-Slav, Meran, Pirc variation4226.2%60.7%
D48QGD semi-Slav, Meran, Reynolds' variation154930.7%56.6%
D48QGD semi-Slav, Meran, old main line22736.1%55.5%
D49QGD semi-Slav, Meran, Blumenfeld variation63730.1%50.9%
D49QGD semi-Slav, Meran, Rabinovich variation11941.2%60.1%
D49QGD semi-Slav, Meran, Rellstab attack3938.5%50.0%
D49QGD semi-Slav, Meran, Sozin variation43040.2%49.2%
D49QGD semi-Slav, Meran, Stahlberg variation9431.9%52.1%
D50QGD, 4.Bg538930.8%57.1%
D50QGD, Been-Koomen variation2123.8%45.2%
D50QGD, Canal (Venice) variation40.0%50.0%
D50QGD, Semi-Tarrasch3948.7%60.3%
D50QGD, Semi-Tarrasch, Krause variation366.7%33.3%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation2626.9%36.5%
D51QGD4415.9%60.2%
D51QGD, 4.Bg5 Nbd713629.4%55.1%
D51QGD, 5...c69529.5%58.9%
D51QGD, Alekhine variation1421.4%53.6%
D51QGD, Capablanca anti-Cambridge Springs variation1631.3%59.4%
D51QGD, Manhattan variation2630.8%57.7%
D51QGD, Rochlin variation10.0%0.0%
D52QGD56632.5%56.9%
D52QGD, Cambridge Springs defence10148.5%49.0%
D52QGD, Cambridge Springs defence, 7.cd60433.3%58.2%
D52QGD, Cambridge Springs defence, Argentine variation3423.5%50.0%
D52QGD, Cambridge Springs defence, Bogoljubow variation73530.3%54.5%
D52QGD, Cambridge Springs defence, Capablanca variation4938.8%50.0%
D52QGD, Cambridge Springs defence, Rubinstein variation22731.7%55.5%
D52QGD, Cambridge Springs defence, Yugoslav variation161727.2%58.9%
D53QGD, 4.Bg5 Be787435.0%54.6%
D53QGD, 4.Bg5 Be7, 5.e3 O-O3735.1%55.4%
D53QGD, Lasker variation1020.0%60.0%
D54QGD, Anti-neo-orthodox variation6728.4%50.0%
D55QGD, 6.Nf337832.3%57.9%
D55QGD, Neo-orthodox variation1553.3%60.0%
D55QGD, Neo-orthodox variation, 7.Bh459032.7%53.8%
D55QGD, Neo-orthodox variation, 7.Bxf633237.7%51.1%
D55QGD, Petrosian variation47938.8%53.0%
D55QGD, Pillsbury attack30.0%33.3%
D56QGD, Lasker defence59129.8%52.3%
D56QGD, Lasker defence, Teichmann variation15634.0%59.3%
D57QGD, Lasker defence, Bernstein variation3135.5%50.0%
D57QGD, Lasker defence, main line7736.4%59.7%
D58QGD, Tartakower (Makagonov-Bondarevsky) system1414832.9%52.7%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd563439.3%51.2%
D59QGD, Tartakower variation22048.2%41.8%
D60QGD, Orthodox defence39231.1%58.4%
D60QGD, Orthodox defence, Botvinnik variation25136.7%52.6%
D60QGD, Orthodox defence, Rauzer variation2927.6%58.6%
D61QGD, Orthodox defence, Rubinstein variation56730.7%54.0%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)28742.2%50.3%
D63QGD, Orthodox defence13525.9%57.4%
D63QGD, Orthodox defence, 7.Rc135934.0%54.0%
D63QGD, Orthodox defence, Capablanca variation60.0%66.7%
D63QGD, Orthodox defence, Pillsbury attack2744.4%40.7%
D63QGD, Orthodox defence, Swiss (Henneberger) variation22029.1%50.9%
D63QGD, Orthodox defence, Swiss, Karlsbad variation31628.8%52.7%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)20441.7%56.6%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation11038.2%49.1%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation3135.5%40.3%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation3638.9%55.6%
D65QGD, Orthodox defence, Rubinstein attack, main line2334.8%39.1%
D66QGD, Orthodox defence, Bd3 line42131.1%55.7%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation3727.0%64.9%
D67QGD, Orthodox defence, Bd3 line8544.7%50.6%
D67QGD, Orthodox defence, Bd3 line, 11.O-O20130.8%63.2%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation12548.0%61.6%
D67QGD, Orthodox defence, Bd3 line, Capablanca freeing manoevre10.0%100.0%
D67QGD, Orthodox defence, Bd3 line, Janowski variation757.1%42.9%
D68QGD, Orthodox defence, classical variation15536.8%55.2%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)771.4%64.3%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)11136.9%59.0%
D69QGD, Orthodox defence, classical, 13.de5062.0%47.0%
D70Neo-Gruenfeld (Kemeri) defence26139.8%55.2%
D70Neo-Gruenfeld defence69523.6%51.7%
D71Neo-Gruenfeld, 5.cd27439.1%56.8%
D72Neo-Gruenfeld, 5.cd, main line45530.1%54.0%
D73Neo-Gruenfeld, 5.Nf3131539.8%53.2%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O64633.0%58.1%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc359640.9%53.9%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc4731.9%60.6%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6180934.3%55.7%
D77Neo-Gruenfeld, 6.O-O262133.9%54.5%
D78Neo-Gruenfeld, 6.O-O c6276933.2%53.7%
D79Neo-Gruenfeld, 6.O-O, main line126537.5%53.5%
D80Gruenfeld defence94839.8%54.3%
D80Gruenfeld, Stockholm variation68934.4%50.3%
D81Gruenfeld, Russian variation45334.0%54.7%
D82Gruenfeld, 4.Bf465833.4%52.4%
D83Gruenfeld, Gruenfeld gambit7429.7%51.4%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation2661.5%46.2%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation12045.0%57.5%
D84Gruenfeld, Gruenfeld gambit accepted9527.4%65.3%
D85Gruenfeld, exchange variation335635.8%52.9%
D85Gruenfeld, modern exchange variation886136.6%53.6%
D86Gruenfeld, exchange, Larsen variation2330.4%63.0%
D86Gruenfeld, exchange, Simagin's improved variation15032.7%54.3%
D86Gruenfeld, exchange, Simagin's lesser variation6731.3%63.4%
D86Gruenfeld, exchange, classical variation147731.9%54.8%
D87Gruenfeld, exchange, Seville variation21939.3%65.8%
D87Gruenfeld, exchange, Spassky variation86035.9%57.5%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd37141.5%52.0%
D89Gruenfeld, Spassky variation, main line, 13.Bd313734.3%55.1%
D89Gruenfeld, exchange, Sokolsky variation7032.9%37.9%
D90Gruenfeld, Flohr variation36435.2%48.6%
D90Gruenfeld, Schlechter variation5339.6%63.2%
D90Gruenfeld, Three knights variation79334.9%53.9%
D91Gruenfeld, 5.Bg5216232.2%49.8%
D92Gruenfeld, 5.Bf4120133.2%55.7%
D93Gruenfeld with Bf4 e382236.9%52.7%
D94Gruenfeld with e3 Bd33040.0%60.0%
D94Gruenfeld, 5.e377334.9%57.7%
D94Gruenfeld, Flohr defence6927.5%54.3%
D94Gruenfeld, Makogonov variation24232.6%51.0%
D94Gruenfeld, Opovcensky variation21837.6%49.1%
D94Gruenfeld, Smyslov defence27236.0%52.9%
D95Gruenfeld with e3 & Qb37636.8%48.7%
D95Gruenfeld, Botvinnik variation11830.5%44.1%
D96Gruenfeld, Russian variation54830.5%53.4%
D97Gruenfeld, Russian variation with e47431.1%50.7%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation458732.0%51.4%
D97Gruenfeld, Russian, Byrne (Simagin) variation36126.0%49.9%
D97Gruenfeld, Russian, Levenfish variation2020.0%55.0%
D97Gruenfeld, Russian, Prins variation138133.4%55.3%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation35329.5%60.6%
D98Gruenfeld, Russian, Keres variation1323.1%73.1%
D98Gruenfeld, Russian, Smyslov variation62428.7%54.6%
D99Gruenfeld defence, Smyslov, Yugoslav variation5149.0%59.8%
D99Gruenfeld defence, Smyslov, main line40731.0%61.9%
E00Catalan opening760530.8%54.1%
E00Neo-Indian (Seirawan) attack61824.4%49.3%
E00Queen's pawn game154627.7%54.2%
E01Catalan, closed61431.6%53.1%
E02Catalan, open, 5.Qa411440.4%59.6%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc44141.5%54.9%
E03Catalan, open, Alekhine variation175.9%44.1%
E04Catalan, open, 5.Nf31350032.8%53.7%
E05Catalan, open, classical line53830.9%55.8%
E06Catalan, closed, 5.Nf3843535.4%54.4%
E07Catalan, closed, 6...Nbd719629.6%52.6%
E07Catalan, closed, Botvinnik variation15424.7%60.4%
E08Catalan, closed, 7.Qc224730.8%54.3%
E08Catalan, closed, Qc2 & b347228.6%52.2%
E08Catalan, closed, Spassky gambit2821.4%60.7%
E08Catalan, closed, Zagoryansky variation450.0%75.0%
E09Catalan, closed, Sokolsky variation540.0%60.0%
E09Catalan, closed, main line79428.5%57.3%
E10Blumenfeld counter-gambit13927.3%54.7%
E10Blumenfeld counter-gambit accepted20723.7%53.4%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation41827.8%55.7%
E10Blumenfeld counter-gambit, Spielmann variation11420.2%52.2%
E10Doery defence12822.7%45.7%
E10Dzindzikhashvili defence23827.3%58.2%
E10Queen's pawn game830331.7%54.5%
E11Bogo-Indian defence392732.7%55.3%
E11Bogo-Indian defence, Gruenfeld variation402731.5%55.5%
E11Bogo-Indian defence, Monticelli trap3125.8%58.1%
E11Bogo-Indian defence, Nimzovich variation286028.9%56.5%
E12Queen's Indian defence58029.1%50.3%
E12Queen's Indian, 4.Nc3743929.1%52.6%
E12Queen's Indian, 4.Nc3, Botvinnik variation11528.7%50.0%
E12Queen's Indian, Miles variation153531.5%53.5%
E12Queen's Indian, Petrosian system1184131.8%53.5%
E13Queen's Indian, 4.Nc3, main line37525.3%55.6%
E14Queen's Indian, 4.e3295530.3%52.1%
E14Queen's Indian, Averbakh variation1330.8%38.5%
E15Queen's Indian, 4.g3201440.8%55.1%
E15Queen's Indian, 4.g3 Bb730429.6%55.3%
E15Queen's Indian, Buerger variation3831.6%52.6%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)3567329.8%55.0%
E15Queen's Indian, Rubinstein variation14222.5%53.5%
E16Queen's Indian, Capablanca variation47734.0%58.1%
E16Queen's Indian, Riumin variation46933.0%55.5%
E16Queen's Indian, Yates variation95231.8%58.6%
E17Queen's Indian, 5.Bg2 Be710335.0%49.5%
E17Queen's Indian, Euwe variation10635.8%60.4%
E17Queen's Indian, Opovcensky variation154129.3%58.2%
E17Queen's Indian, anti-Queen's Indian system31234.3%54.3%
E17Queen's Indian, old main line, 6.O-O117232.4%56.2%
E18Queen's Indian, old main line, 7.Nc3335933.1%56.3%
E19Queen's Indian, old main line, 9.Qxc3183033.5%55.3%
E20Nimzo-Indian defence30428.3%47.4%
E20Nimzo-Indian, Kmoch variation132925.4%53.4%
E20Nimzo-Indian, Mikenas attack2025.0%32.5%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system85228.2%49.3%
E21Nimzo-Indian, three knights variation417029.0%52.0%
E21Nimzo-Indian, three knights, Euwe variation1250.0%58.3%
E21Nimzo-Indian, three knights, Korchnoi variation4434.1%60.2%
E22Nimzo-Indian, Spielmann variation19631.1%53.8%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc63724.3%44.6%
E23Nimzo-Indian, Spielmann, Karlsbad variation1729.4%38.2%
E23Nimzo-Indian, Spielmann, San Remo variation650.0%58.3%
E24Nimzo-Indian, Saemisch variation23933.5%48.5%
E24Nimzo-Indian, Saemisch, Botvinnik variation3831.6%47.4%
E25Nimzo-Indian, Saemisch variation13236.4%52.3%
E25Nimzo-Indian, Saemisch, Keres variation47030.0%51.8%
E25Nimzo-Indian, Saemisch, Romanovsky variation22838.2%50.2%
E26Nimzo-Indian, Saemisch variation15326.1%49.0%
E26Nimzo-Indian, Saemisch, O'Kelly variation4325.6%38.4%
E27Nimzo-Indian, Saemisch variation5831.0%50.0%
E28Nimzo-Indian, Saemisch variation11731.6%53.4%
E29Nimzo-Indian, Saemisch, Capablanca variation13139.7%51.1%
E29Nimzo-Indian, Saemisch, main line13931.7%59.0%
E30Nimzo-Indian, Leningrad variation53930.2%50.4%
E30Nimzo-Indian, Leningrad, ...b5 gambit3842.1%42.1%
E31Nimzo-Indian, Leningrad, main line22122.2%45.9%
E32Nimzo-Indian, classical variation930832.4%52.9%
E32Nimzo-Indian, classical, Adorjan gambit27827.3%54.7%
E33Nimzo-Indian, classical, 4...Nc616322.7%61.7%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation80826.5%54.0%
E34Nimzo-Indian, classical, Noa variation96333.9%51.6%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed105133.9%49.5%
E36Nimzo-Indian, classical, Botvinnik variation2035.0%52.5%
E36Nimzo-Indian, classical, Noa variation, 5.a362132.5%55.1%
E36Nimzo-Indian, classical, Noa variation, main line70.0%28.6%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc216230.9%60.5%
E37Nimzo-Indian, classical, San Remo variation1241.7%54.2%
E38Nimzo-Indian, classical, 4...c585831.0%55.9%
E39Nimzo-Indian, classical, Pirc variation145032.8%56.1%
E40Nimzo-Indian, 4.e326727.0%53.6%
E40Nimzo-Indian, 4.e3, Taimanov variation13829.0%52.2%
E41Nimzo-Indian, 4.e3 c589534.1%50.9%
E41Nimzo-Indian, e3, Huebner variation104325.0%49.7%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)216331.9%55.2%
E43Nimzo-Indian, Fischer variation66830.1%54.4%
E44Nimzo-Indian, Fischer variation, 5.Ne2100225.3%56.2%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation76731.2%54.8%
E46Nimzo-Indian, 4.e3 O-O20136.8%50.7%
E46Nimzo-Indian, Reshevsky variation157928.1%52.5%
E46Nimzo-Indian, Simagin variation11829.7%47.9%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd394637.2%55.7%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d573732.4%52.4%
E49Nimzo-Indian, 4.e3, Botvinnik system46130.2%48.5%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d518133.1%58.6%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d532834.8%51.5%
E51Nimzo-Indian, 4.e3, Ragozin variation5448.1%57.4%
E52Nimzo-Indian, 4.e3, main line with ...b6117632.9%53.4%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd713839.1%54.3%
E53Nimzo-Indian, 4.e3, Keres variation12733.9%46.9%
E53Nimzo-Indian, 4.e3, main line with ...c5197836.5%52.8%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc271136.0%54.0%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation6833.8%58.1%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation314135.1%53.3%
E56Nimzo-Indian, 4.e3, main line with 7...Nc6142531.2%54.8%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd3125.8%67.7%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3332929.4%49.3%
E59Nimzo-Indian, 4.e3, main line220730.9%53.9%
E60King's Indian defence204723.0%53.7%
E60King's Indian, 3.Nf3542529.7%55.6%
E60King's Indian, 3.g3275231.6%55.2%
E60King's Indian, 3.g3, counterthrust variation1833.3%50.0%
E60King's Indian, Anti-Gruenfeld17024.7%47.6%
E60King's Indian, Danube gambit1931.6%52.6%
E60Queen's pawn, Mengarini attack14124.8%50.7%
E61King's Indian defence, 3.Nc3151928.6%54.2%
E61King's Indian, Smyslov system16127.3%49.1%
E62King's Indian, fianchetto variation17128.1%53.2%
E62King's Indian, fianchetto with ...Nc635326.1%56.7%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation118129.7%58.8%
E62King's Indian, fianchetto, Larsen system35328.6%53.4%
E62King's Indian, fianchetto, Simagin variation17828.1%67.4%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation52730.2%57.8%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation47825.1%58.2%
E63King's Indian, fianchetto, Panno variation333428.6%57.1%
E64King's Indian, fianchetto, Yugoslav system20424.0%56.1%
E65King's Indian, fianchetto, Yugoslav, 7.O-O25930.9%58.3%
E66King's Indian, fianchetto, Yugoslav Panno52528.0%56.1%
E67King's Indian, fianchetto with ...Nd721829.4%61.9%
E67King's Indian, fianchetto, classical variation106932.1%55.9%
E68King's Indian, fianchetto, classical variation, 8.e4216929.0%58.7%
E69King's Indian, fianchetto, classical main line126830.4%60.0%
E70King's Indian, 4.e497425.7%54.9%
E70King's Indian, Kramer system25822.5%53.5%
E70King's Indian, accelerated Averbakh system13826.8%50.4%
E71King's Indian, Makagonov system (5.h3)106226.9%55.9%
E72King's Indian with e4 & g36529.2%53.1%
E72King's Indian, Pomar system1553.3%60.0%
E73King's Indian, 5.Be212221.3%49.2%
E73King's Indian, Averbakh system105629.0%52.8%
E73King's Indian, Semi-Averbakh system5525.5%52.7%
E74King's Indian, Averbakh, 6...c531326.2%62.0%
E75King's Indian, Averbakh, main line5731.6%50.9%
E76King's Indian, Four pawns attack37833.9%58.7%
E76King's Indian, Four pawns attack, dynamic line18832.4%50.8%
E77King's Indian, Four pawns attack25333.6%53.6%
E77King's Indian, Four pawns attack, 6.Be2933.3%50.0%
E77King's Indian, Four pawns attack, Florentine gambit4129.3%41.5%
E78King's Indian, Four pawns attack, with Be2 and Nf33935.9%48.7%
E79King's Indian, Four pawns attack, main line12845.3%57.0%
E80King's Indian, Saemisch variation66624.0%55.3%
E81King's Indian, Saemisch, 5...O-O257325.5%53.8%
E81King's Indian, Saemisch, Byrne variation9129.7%52.2%
E82King's Indian, Saemisch, double fianchetto variation16529.7%59.7%
E83King's Indian, Saemisch, 6...Nc613318.8%56.0%
E83King's Indian, Saemisch, Panno formation24625.2%53.7%
E83King's Indian, Saemisch, Ruban variation1020.0%50.0%
E84King's Indian, Saemisch, Panno main line92321.3%52.5%
E85King's Indian, Saemisch, orthodox variation8627.9%57.0%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c659123.0%55.7%
E87King's Indian, Saemisch, orthodox, 7.d556920.4%63.3%
E87King's Indian, Saemisch, orthodox, Bronstein variation1127.3%59.1%
E88King's Indian, Saemisch, orthodox, 7.d5 c655530.8%55.6%
E89King's Indian, Saemisch, orthodox main line8426.2%61.9%
E90King's Indian, 5.Nf3129223.4%54.6%
E90King's Indian, Larsen variation13228.0%54.9%
E90King's Indian, Zinnowitz variation10529.5%52.9%
E91King's Indian, 6.Be297425.2%59.7%
E91King's Indian, Kazakh variation70429.4%57.6%
E92King's Indian, Andersson variation49739.8%53.7%
E92King's Indian, Gligoric-Taimanov system296324.8%57.8%
E92King's Indian, Petrosian system20719.8%56.8%
E92King's Indian, Petrosian system, Stein variation124527.6%53.3%
E92King's Indian, classical variation2128.6%47.6%
E93King's Indian, Petrosian system, Keres variation2828.6%50.0%
E93King's Indian, Petrosian system, main line23924.3%55.2%
E94King's Indian, orthodox variation196131.5%57.2%
E94King's Indian, orthodox, 7...Nbd7267227.2%57.0%
E94King's Indian, orthodox, Donner variation24928.1%55.0%
E95King's Indian, orthodox, 7...Nbd7, 8.Re1100726.7%56.1%
E96King's Indian, orthodox, 7...Nbd7, main line22732.6%59.0%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)903425.3%55.5%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack328529.2%57.7%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1330521.8%59.4%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack15425.3%57.5%
E99King's Indian, orthodox, Aronin-Taimanov, main line13523.0%53.7%

Created in 2005-2013 by CCRL team
Last games added on April 13, 2019