CCRL 40/15
Downloads and Statistics
April 18, 2021
Testing summary:
Total: 1'237'253 games
played by 2'822 programs

White wins: 424'164 (34.3%)
Black wins: 311'650 (25.2%)
Draws: 501'439 (40.5%)
White score: 54.5%

Opening statistics

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

ECOOpeningNumber
of
games
DrawsWhite
score
Commented
PGN
A00Amar (Paris) opening1844.4%33.3%
A00Amar gambit10.0%0.0%
A00Amsterdam attack30.0%100.0%
A00Anderssen's opening51741.0%50.3%
A00Anti-Borg (Desprez) opening70.0%42.9%
A00Battambang opening2236.4%50.0%
A00Benko's opening1013240.4%52.1%
A00Benko's opening, reversed Alekhine13342.1%45.9%
A00Clemenz (Mead's, Basman's or de Klerk's) opening10037.0%50.5%
A00Dunst (Sleipner, Heinrichsen) opening257036.3%49.8%
A00Durkin's attack1421.4%46.4%
A00Gedult's opening1414.3%42.9%
A00Global opening425.0%62.5%
A00Grob's attack19942.2%35.2%
A00Grob, Fritz gambit5743.9%30.7%
A00Grob, Romford counter-gambit425.0%62.5%
A00Grob, spike attack633.3%33.3%
A00Lasker simul special333.3%50.0%
A00Mieses opening35032.0%50.0%
A00Novosibirsk opening3036.7%55.0%
A00Polish (Sokolsky) opening290839.8%48.1%
A00Polish, Outflank variation19542.6%46.9%
A00Saragossa opening46729.6%51.0%
A00Van't Kruijs opening62040.2%50.9%
A00Ware (Meadow Hay) opening3033.3%40.0%
A01Nimzovich-Larsen attack102236.8%51.7%
A01Nimzovich-Larsen attack, Dutch variation4524.4%58.9%
A01Nimzovich-Larsen attack, English variation53735.6%49.4%
A01Nimzovich-Larsen attack, Indian variation68737.4%49.9%
A01Nimzovich-Larsen attack, Polish variation616.7%58.3%
A01Nimzovich-Larsen attack, classical variation227735.1%49.3%
A01Nimzovich-Larsen attack, modern variation442438.7%50.4%
A01Nimzovich-Larsen attack, symmetrical variation91040.7%50.1%
A02Bird's opening440036.6%49.4%
A02Bird's opening, Swiss gambit250.0%75.0%
A02Bird, From gambit28732.8%53.3%
A02Bird, From gambit, Lasker variation3647.2%56.9%
A02Bird, From gambit, Lipke variation10.0%0.0%
A02Bird, Hobbs gambit560.0%70.0%
A03Bird's opening376235.4%47.9%
A03Bird's opening, Lasker variation14030.7%46.1%
A03Bird's opening, Williams gambit5334.0%56.6%
A03Mujannah opening450.0%25.0%
A04Reti opening1259738.6%54.6%
A04Reti v Dutch189332.9%57.3%
A04Reti, Herrstroem gambit20.0%100.0%
A04Reti, Lisitsin gambit deferred4628.3%68.5%
A04Reti, Pirc-Lisitsin gambit16430.5%48.2%
A04Reti, Wade defence20.0%50.0%
A05Reti opening596237.2%53.1%
A05Reti, King's Indian attack204941.4%53.2%
A05Reti, King's Indian attack, Reti-Smyslov variation15833.5%49.1%
A05Reti, King's Indian attack, Spassky's variation71943.4%51.3%
A06Reti opening108138.0%52.7%
A06Reti, Nimzovich-Larsen attack449739.4%49.7%
A06Reti, old Indian attack19230.7%48.2%
A06Santasiere's folly22637.2%45.6%
A06Tennison (Lemberg, Zukertort) gambit4240.5%51.2%
A07Reti, King's Indian attack305741.7%53.0%
A07Reti, King's Indian attack (Barcza system)814541.2%53.4%
A07Reti, King's Indian attack (with ...c5)27835.3%50.0%
A07Reti, King's Indian attack, Keres variation106037.0%54.2%
A07Reti, King's Indian attack, Pachman system21141.7%52.6%
A07Reti, King's Indian attack, Yugoslav variation219640.6%53.2%
A08Reti, King's Indian attack82241.6%52.6%
A08Reti, King's Indian attack, French variation35338.8%49.7%
A09Reti accepted52738.7%52.6%
A09Reti accepted, Keres variation6827.9%64.0%
A09Reti opening106839.2%54.3%
A09Reti, advance variation171736.5%48.6%
A10English opening479437.3%54.9%
A10English, Adorjan defence96239.2%52.0%
A10English, Anglo-Dutch defense122232.7%51.4%
A10English, Jaenisch gambit20.0%100.0%
A11English, Caro-Kann defensive system218940.2%53.3%
A12English, Bled variation3138.7%45.2%
A12English, Capablanca's variation13939.6%46.4%
A12English, Caro-Kann defensive system30535.4%51.8%
A12English, Caro-Kann defensive system, Bogolyubov variation17045.9%54.7%
A12English, London defensive system16842.9%53.0%
A12English, New York (London) defensive system9637.5%43.8%
A12English, Torre defensive system11239.3%50.9%
A13English opening323937.6%52.9%
A13English opening, Agincourt variation209940.2%55.1%
A13English, Kurajica defence17635.2%60.2%
A13English, Neo-Catalan120042.7%52.3%
A13English, Neo-Catalan accepted168447.9%55.8%
A13English, Romanishin gambit42941.7%56.8%
A13English, Wimpey system24048.3%46.7%
A14English, Neo-Catalan declined126445.2%54.6%
A14English, Symmetrical, Keres defence61748.0%57.4%
A15English opening1647544.0%53.8%
A15English, 1...Nf6 (Anglo-Indian defense)191738.8%55.1%
A16English opening195835.4%54.2%
A16English, Anglo-Gruenfeld defense40843.4%54.8%
A16English, Anglo-Gruenfeld defense, Korchnoi variation9837.8%55.6%
A16English, Anglo-Gruenfeld, Czech defense27434.7%59.7%
A16English, Anglo-Gruenfeld, Smyslov defense19737.6%56.9%
A17English opening32939.2%53.3%
A17English, Nimzo-English opening270339.8%53.8%
A17English, Queens Indian formation36637.7%58.7%
A17English, Queens Indian, Romanishin variation11735.0%55.1%
A18English, Mikenas-Carls variation33538.8%58.2%
A18English, Mikenas-Carls, Flohr variation54341.4%59.0%
A18English, Mikenas-Carls, Kevitz variation3234.4%48.4%
A19English, Mikenas-Carls, Sicilian variation73039.0%54.5%
A20English opening1023138.9%53.4%
A20English, Nimzovich variation16631.9%54.5%
A20English, Nimzovich, Flohr variation22238.7%48.2%
A21English opening227332.3%55.5%
A21English, Keres variation1421.4%46.4%
A21English, Kramnik-Shirov counterattack319338.2%51.9%
A21English, Smyslov defence6628.8%61.4%
A21English, Troeger defence17527.4%56.0%
A22English opening109536.9%50.8%
A22English, Bellon gambit4727.7%58.5%
A22English, Bremen, Smyslov system209239.0%48.7%
A22English, Bremen, reverse dragon85940.5%51.2%
A22English, Carls' Bremen system60537.7%54.0%
A23English, Bremen system, Keres variation97440.6%50.9%
A24English, Bremen system with ...g624638.6%49.4%
A25English, Sicilian reversed120933.6%53.7%
A25English, closed system94835.8%53.6%
A25English, closed system (without ...d6)14630.8%55.1%
A25English, closed, 5.Rb160738.9%52.4%
A25English, closed, 5.Rb1 Taimanov variation1020.0%60.0%
A25English, closed, Hort variation5234.6%55.8%
A25English, closed, Taimanov variation3420.6%63.2%
A26English, Botvinnik system40037.0%53.3%
A26English, closed system45238.3%51.7%
A27English, three knights system140631.5%52.1%
A28English, Bradley Beach variation8225.6%39.6%
A28English, Nenarokov variation12639.7%50.8%
A28English, four knights system48441.5%52.8%
A28English, four knights, 4.e3147239.3%52.3%
A28English, four knights, Capablanca variation71338.4%53.9%
A28English, four knights, Marini variation120639.3%50.2%
A28English, four knights, Nimzovich variation100737.1%54.0%
A28English, four knights, Romanishin variation64450.8%52.3%
A28English, four knights, Stean variation11143.2%56.8%
A29English, four knights, kingside fianchetto799641.8%52.4%
A30English, symmetrical variation486440.1%54.2%
A30English, symmetrical, hedgehog system326547.1%56.1%
A30English, symmetrical, hedgehog, flexible formation21445.3%54.0%
A31English, symmetrical, Benoni formation152739.9%55.7%
A32English, symmetrical variation85545.0%54.1%
A33English, symmetrical variation219248.0%53.8%
A33English, symmetrical, Geller variation84940.5%53.8%
A34English, symmetrical variation162239.8%53.9%
A34English, symmetrical, Rubinstein system52640.5%51.8%
A34English, symmetrical, three knights system193545.8%54.6%
A35English, symmetrical variation41635.6%50.2%
A35English, symmetrical, four knights system291744.6%53.5%
A36English, symmetrical variation15433.8%51.3%
A36English, symmetrical, Botvinnik system21035.2%49.5%
A36English, symmetrical, Botvinnik system reversed12444.4%52.8%
A36English, ultra-symmetrical variation206538.6%52.3%
A37English, symmetrical variation139241.6%51.1%
A37English, symmetrical, Botvinnik system reversed103239.6%51.9%
A38English, symmetrical variation69444.1%54.9%
A38English, symmetrical, main line with b3366.7%33.3%
A38English, symmetrical, main line with d321144.5%54.0%
A39English, symmetrical, main line with d468742.1%56.3%
A40Beefeater defence5431.5%62.0%
A40Modern defence185335.5%57.0%
A40Polish defence12432.3%57.3%
A40Queen's pawn383834.8%55.0%
A40Queen's pawn, Charlick (Englund) gambit3444.1%60.3%
A40Queen's pawn, English defence49045.5%57.2%
A40Queen's pawn, Franco-Indian (Keres) defence202937.0%56.3%
A40Queen's pawn, Keres defence340242.4%56.2%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence34126.4%56.9%
A41Modern defence15632.1%55.8%
A41Old Indian defence174332.5%53.8%
A41Old Indian, Tartakower (Wade) variation183533.4%59.3%
A41Queen's Pawn313035.5%56.0%
A41Robatsch defence, Rossolimo variation21734.6%52.3%
A42Modern defence, Averbakh system87833.5%59.1%
A42Modern defence, Averbakh system, Kotov variation18128.7%63.0%
A42Modern defence, Averbakh system, Randspringer variation1513.3%66.7%
A42Pterodactyl defence34036.8%63.4%
A43Hawk (Habichd) defence366.7%33.3%
A43Old Benoni defence266534.3%56.8%
A43Old Benoni, Franco-Benoni defence19833.8%62.4%
A43Old Benoni, Mujannah formation8732.2%63.2%
A43Old Benoni, Schmid's system4126.8%59.8%
A43Woozle defence80.0%75.0%
A44Old Benoni defence6929.0%59.4%
A44Semi-Benoni (`blockade variation')43429.0%59.9%
A45Blackmar-Diemer gambit25727.6%52.3%
A45Canard opening1729.4%38.2%
A45Paleface attack4632.6%51.1%
A45Queen's pawn game430337.6%53.8%
A45Queen's pawn, Bronstein gambit1233.3%50.0%
A45Trompovsky attack (Ruth, Opovcensky opening)760835.2%53.2%
A46Queen's pawn game569639.7%54.5%
A46Queen's pawn, Torre attack225637.0%52.3%
A46Queen's pawn, Torre attack, Wagner gambit2429.2%47.9%
A46Queen's pawn, Yusupov-Rubinstein system123641.4%52.3%
A47Queen's Indian defence83537.6%50.9%
A47Queen's Indian, Marienbad system12141.3%52.1%
A47Queen's Indian, Marienbad system, Berg variation2152.4%54.8%
A48King's Indian, East Indian defence147439.4%52.7%
A48King's Indian, London system187139.7%53.2%
A48King's Indian, Torre attack242540.3%50.3%
A49King's Indian, fianchetto without c4176541.4%55.5%
A50Kevitz-Trajkovich defence66233.2%56.2%
A50Queen's Indian accelerated62340.4%57.0%
A50Queen's pawn game125537.5%56.2%
A51Budapest defence declined3145.2%61.3%
A51Budapest, Fajarowicz variation41440.1%56.8%
A51Budapest, Fajarowicz, Steiner variation5036.0%46.0%
A52Budapest defence7331.5%54.1%
A52Budapest, Adler variation43045.6%57.7%
A52Budapest, Alekhine variation2931.0%60.3%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
A52Budapest, Alekhine, Abonyi variation8129.6%61.7%
A52Budapest, Rubinstein variation52242.7%61.8%
A53Old Indian defence152737.5%58.7%
A53Old Indian, Janowski variation22633.6%55.8%
A54Old Indian, Dus-Khotimirsky variation2227.3%40.9%
A54Old Indian, Ukrainian variation20838.5%54.3%
A54Old Indian, Ukrainian variation, 4.Nf348236.5%54.6%
A55Old Indian, main line60435.9%58.4%
A56Benoni defence109133.6%60.3%
A56Benoni defence, Hromodka system63926.4%62.4%
A56Czech Benoni defence44726.8%66.0%
A56Czech Benoni, King's Indian system6520.0%62.3%
A56Vulture defence333.3%83.3%
A57Benko gambit140335.1%56.3%
A57Benko gambit half accepted129739.9%58.6%
A57Benko gambit, Zaitsev system14037.1%50.7%
A58Benko gambit accepted112837.8%57.7%
A58Benko gambit, Nd2 variation1442.9%57.1%
A58Benko gambit, fianchetto variation18845.2%59.8%
A59Benko gambit6043.3%65.0%
A59Benko gambit, 7.e46331.7%61.9%
A59Benko gambit, Ne2 variation2339.1%50.0%
A59Benko gambit, main line18042.2%68.9%
A60Benoni defence41331.2%58.2%
A61Benoni defence66333.3%61.5%
A61Benoni, Nimzovich (knight's tour) variation60029.0%59.7%
A61Benoni, Uhlmann variation22323.3%40.4%
A61Benoni, fianchetto variation7129.6%58.5%
A62Benoni, fianchetto variation158035.6%55.9%
A63Benoni, fianchetto, 9...Nbd717337.0%64.7%
A64Benoni, fianchetto, 11...Re826040.0%50.0%
A65Benoni, 6.e461532.8%58.0%
A66Benoni, Mikenas variation3517.1%54.3%
A66Benoni, pawn storm variation650.0%58.3%
A67Benoni, Taimanov variation37229.6%62.6%
A68Benoni, four pawns attack12535.2%58.4%
A69Benoni, four pawns attack, main line15939.6%55.0%
A70Benoni, classical with e4 and Nf388038.1%60.2%
A70Benoni, classical without 9.O-O2010.0%55.0%
A71Benoni, classical, 8.Bg517135.1%56.7%
A72Benoni, classical without 9.O-O15944.7%65.7%
A73Benoni, classical, 9.O-O13131.3%59.2%
A74Benoni, classical, 9...a6, 10.a44032.5%63.8%
A75Benoni, classical with ...a6 and 10...Bg414134.0%62.4%
A76Benoni, classical, 9...Re823339.9%61.6%
A77Benoni, classical, 9...Re8, 10.Nd223534.0%63.4%
A78Benoni, classical with ...Re8 and ...Na612832.0%61.3%
A79Benoni, classical, 11.f310531.4%62.4%
A80Dutch364334.8%54.6%
A80Dutch, 2.Bg5 variation188232.7%54.2%
A80Dutch, Korchnoi attack8026.3%48.1%
A80Dutch, Krejcik gambit32132.4%53.6%
A80Dutch, Manhattan (Alapin, Ulvestad) variation5123.5%51.0%
A80Dutch, Spielmann gambit450.0%50.0%
A80Dutch, Von Pretzel gambit20.0%100.0%
A81Dutch defence505538.5%57.0%
A81Dutch defence, Blackburne variation8031.3%53.1%
A81Dutch, Leningrad, Basman system1250.0%58.3%
A81Dutch, Leningrad, Karlsbad variation1250.0%50.0%
A82Dutch, Balogh defence2850.0%60.7%
A82Dutch, Staunton gambit22336.3%44.6%
A82Dutch, Staunton gambit, Tartakower variation1827.8%58.3%
A83Dutch, Staunton gambit, Alekhine variation540.0%40.0%
A83Dutch, Staunton gambit, Chigorin variation10731.8%52.3%
A83Dutch, Staunton gambit, Lasker variation3336.4%57.6%
A83Dutch, Staunton gambit, Nimzovich variation450.0%25.0%
A83Dutch, Staunton gambit, Staunton's line28739.0%50.2%
A84Dutch defence87836.9%56.7%
A84Dutch defence, Rubinstein variation51131.9%57.4%
A84Dutch, Staunton gambit deferred1145.5%31.8%
A85Dutch with c4 & Nc3100033.2%54.9%
A86Dutch with c4 & g318736.9%60.7%
A86Dutch, Hort-Antoshin system1241.7%54.2%
A86Dutch, Leningrad variation33537.9%57.2%
A87Dutch, Leningrad, main variation60339.0%56.0%
A88Dutch, Leningrad, main variation with c6135540.5%58.5%
A89Dutch, Leningrad, main variation with Nc663435.2%61.9%
A90Dutch defence139538.9%60.3%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation31236.9%60.7%
A90Dutch-Indian, Alekhine variation10931.2%57.8%
A91Dutch defence24133.2%52.7%
A92Dutch defence14239.4%62.0%
A92Dutch defence, Alekhine variation6241.9%59.7%
A92Dutch, stonewall variation14740.1%60.9%
A92Dutch, stonewall with Nc33844.7%48.7%
A93Dutch, stonewall, Botwinnik variation29839.3%60.9%
A94Dutch, stonewall with Ba313543.7%56.7%
A95Dutch, stonewall with Nc332132.4%58.9%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
A96Dutch, classical variation57735.7%59.3%
A97Dutch, Ilyin-Genevsky variation17936.9%55.3%
A97Dutch, Ilyin-Genevsky, Winter variation19140.3%63.6%
A98Dutch, Ilyin-Genevsky variation with Qc221830.3%58.3%
A99Dutch, Ilyin-Genevsky variation with b339939.1%60.9%
B00Barnes defence1442.9%78.6%
B00Carr's defence450.0%50.0%
B00Corn stalk defence633.3%33.3%
B00Fred80.0%75.0%
B00KP, Colorado counter1241.7%70.8%
B00KP, Nimzovich defence108132.7%58.7%
B00KP, Nimzovich defence, Bogolyubov variation14829.7%60.1%
B00KP, Nimzovich defence, Marshall gambit616.7%25.0%
B00King's pawn opening274334.5%57.0%
B00Lemming defence1233.3%58.3%
B00Owen defence51133.7%60.7%
B00Reversed Grob (Borg/Basman defence/macho Grob)5219.2%71.2%
B00St. George (Baker) defence5332.1%59.4%
B01Scandinavian (centre counter) defence386239.8%57.7%
B01Scandinavian defence164039.6%58.5%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B01Scandinavian defence, Lasker variation14633.6%65.4%
B01Scandinavian gambit20542.9%55.1%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
B01Scandinavian, Icelandic gambit7045.7%57.1%
B01Scandinavian, Kiel variation728.6%85.7%
B01Scandinavian, Marshall variation74043.2%59.9%
B01Scandinavian, Mieses-Kotrvc gambit1353.8%50.0%
B01Scandinavian, Pytel-Wade variation350943.1%58.1%
B01Scandinavian, Richter variation1216.7%66.7%
B02Alekhine's defence81034.3%54.7%
B02Alekhine's defence, Brooklyn defence2740.7%61.1%
B02Alekhine's defence, Kmoch variation1520.0%36.7%
B02Alekhine's defence, Krejcik variation2035.0%47.5%
B02Alekhine's defence, Maroczy variation16935.5%57.4%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation250.0%25.0%
B02Alekhine's defence, Saemisch attack48434.9%49.7%
B02Alekhine's defence, Scandinavian variation53037.5%55.6%
B02Alekhine's defence, Spielmann variation2429.2%47.9%
B02Alekhine's defence, Steiner variation2339.1%50.0%
B02Alekhine's defence, Two pawns' (Lasker's) attack41040.7%52.6%
B02Alekhine's defence, Two pawns' attack, Mikenas variation20.0%0.0%
B02Alekhine's defence, Welling variation1020.0%50.0%
B03Alekhine's defence19938.2%59.3%
B03Alekhine's defence, Balogh variation5939.0%58.5%
B03Alekhine's defence, exchange variation89138.7%59.5%
B03Alekhine's defence, exchange, Karpov variation1662.5%56.3%
B03Alekhine's defence, four pawns attack30733.6%65.3%
B03Alekhine's defence, four pawns attack, 6...Nc62429.2%52.1%
B03Alekhine's defence, four pawns attack, 7.Be317633.5%70.2%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
B03Alekhine's defence, four pawns attack, Planinc variation1136.4%36.4%
B03Alekhine's defence, four pawns attack, Trifunovic variation11031.8%69.5%
B03Alekhine's defence, four pawns attack, fianchetto variation15333.3%60.5%
B04Alekhine's defence, modern variation33636.0%60.9%
B04Alekhine's defence, modern, Keres variation9339.8%67.2%
B04Alekhine's defence, modern, Larsen variation124842.7%59.3%
B04Alekhine's defence, modern, Schmid variation18440.2%59.8%
B04Alekhine's defence, modern, fianchetto variation95938.0%57.7%
B05Alekhine's defence, modern variation, 4...Bg481832.6%64.6%
B05Alekhine's defence, modern, Alekhine variation837.5%43.8%
B05Alekhine's defence, modern, Flohr variation20738.6%59.9%
B05Alekhine's defence, modern, Panov variation2941.4%48.3%
B05Alekhine's defence, modern, Vitolins attack4045.0%55.0%
B06Norwegian defence666.7%50.0%
B06Robatsch (modern) defence964635.6%56.4%
B06Robatsch defence111336.1%58.8%
B06Robatsch defence, Gurgenidze variation9634.4%63.0%
B06Robatsch defence, Pseudo-Austrian attack67136.7%53.8%
B06Robatsch defence, Two knights variation41832.5%59.6%
B06Robatsch defence, Two knights, Suttles variation115238.0%58.0%
B06Robatsch defence, three pawns attack22328.3%59.4%
B07Pirc defence265836.0%56.5%
B07Pirc, 150 attack31038.1%61.6%
B07Pirc, Byrne variation57634.0%57.1%
B07Pirc, Chinese variation650.0%41.7%
B07Pirc, Holmov system7739.0%53.2%
B07Pirc, Sveshnikov system41837.6%52.3%
B07Pirc, Ufimtsev-Pytel variation72534.8%58.1%
B07Pirc, bayonet (Mariotti) attack5541.8%53.6%
B07Robatsch defence, Geller's system78436.4%57.5%
B08Pirc, classical (two knights) system97738.0%58.9%
B08Pirc, classical system, 5.Be2322339.5%58.1%
B08Pirc, classical, h3 system57338.4%58.8%
B09Pirc, Austrian attack24337.9%60.1%
B09Pirc, Austrian attack, 6.Bd3165540.2%60.3%
B09Pirc, Austrian attack, 6.Be341832.8%57.1%
B09Pirc, Austrian attack, 6.e514438.9%56.9%
B09Pirc, Austrian attack, Ljubojevic variation3330.3%48.5%
B09Pirc, Austrian attack, dragon formation97340.0%58.2%
B10Caro-Kann defence328035.6%52.6%
B10Caro-Kann, Goldman (Spielmann) variation15036.0%51.3%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B10Caro-Kann, Two knights variation80037.9%57.3%
B10Caro-Kann, anti-Caro-Kann defence81331.6%60.0%
B10Caro-Kann, anti-anti-Caro-Kann defence175248.8%53.1%
B10Caro-Kann, closed (Breyer) variation146638.2%53.1%
B11Caro-Kann, Two knights, 3...Bg4144340.1%55.2%
B12Caro-Kann defence39732.5%57.3%
B12Caro-Kann, 3.Nd226136.0%59.8%
B12Caro-Kann, Edinburgh variation7742.9%56.5%
B12Caro-Kann, Tartakower (fantasy) variation104837.5%55.7%
B12Caro-Kann, advance variation1440038.2%56.4%
B12Caro-Kann, advance, Short variation6729.9%61.2%
B12Caro-Masi defence1100.0%50.0%
B12de Bruycker defence258.0%56.0%
B13Caro-Kann, Panov-Botvinnik attack142048.0%52.7%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation5438.9%49.1%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack2832.1%44.6%
B13Caro-Kann, Panov-Botvinnik, Herzog defence2334.8%52.2%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation742.9%64.3%
B13Caro-Kann, Panov-Botvinnik, normal variation14847.3%55.4%
B13Caro-Kann, exchange variation138040.7%52.4%
B13Caro-Kann, exchange, Rubinstein variation23239.2%54.5%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6231547.7%55.5%
B14Caro-Kann, Panov-Botvinnik attack, 5...g643952.2%52.5%
B15Caro-Kann defence37230.9%55.5%
B15Caro-Kann, Alekhine gambit4436.4%45.5%
B15Caro-Kann, Forgacs variation30245.0%56.6%
B15Caro-Kann, Gurgenidze counter-attack850.0%62.5%
B15Caro-Kann, Gurgenidze system47237.3%58.1%
B15Caro-Kann, Rasa-Studier gambit1822.2%27.8%
B15Caro-Kann, Tartakower (Nimzovich) variation58042.6%56.3%
B16Caro-Kann, Bronstein-Larsen variation64433.1%60.6%
B17Caro-Kann, Steinitz variation464743.7%53.6%
B18Caro-Kann, classical variation217445.8%54.6%
B18Caro-Kann, classical, 6.h475242.7%54.6%
B18Caro-Kann, classical, Flohr variation14852.0%55.7%
B18Caro-Kann, classical, Maroczy attack1216.7%41.7%
B19Caro-Kann, classical, 7...Nd743149.4%52.6%
B19Caro-Kann, classical, Spassky variation290940.5%56.5%
B20Sicilian defence368434.1%50.3%
B20Sicilian, Gloria variation1421.4%46.4%
B20Sicilian, Keres variation (2.Ne2)132238.8%52.1%
B20Sicilian, Steinitz variation64238.5%51.0%
B20Sicilian, wing gambit10333.0%44.7%
B20Sicilian, wing gambit, Carlsbad variation3444.1%48.5%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
B20Sicilian, wing gambit, Marshall variation9628.1%56.8%
B21Sicilian, Andreaschek gambit1947.4%55.3%
B21Sicilian, Grand Prix attack201934.7%52.4%
B21Sicilian, Smith-Morra gambit106640.3%47.8%
B22Sicilian, 2.c3, Heidenfeld variation6225.8%45.2%
B22Sicilian, Alapin's variation (2.c3)855043.5%54.6%
B23Sicilian, Grand Prix attack103537.0%49.3%
B23Sicilian, Grand Prix attack, Schofman variation16041.9%52.2%
B23Sicilian, chameleon variation100535.7%57.0%
B23Sicilian, closed519537.3%51.7%
B23Sicilian, closed, 2...Nc6276139.8%52.7%
B23Sicilian, closed, Korchnoi variation25647.7%50.4%
B24Sicilian, closed68636.7%51.0%
B24Sicilian, closed, Smyslov variation2729.6%59.3%
B25Sicilian, closed38635.2%50.3%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)8231.7%50.0%
B25Sicilian, closed, 6.f456039.1%49.4%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)4645.7%59.8%
B26Sicilian, closed, 6.Be383533.7%49.9%
B27Sicilian defence5534.5%62.7%
B27Sicilian, Acton extension425.0%87.5%
B27Sicilian, Hungarian variation394739.8%57.7%
B27Sicilian, Katalimov variation21840.8%58.5%
B27Sicilian, Quinteros variation8235.4%61.6%
B27Sicilian, Stiletto (Althouse) variation450.0%25.0%
B28Sicilian, O'Kelly variation102236.9%58.3%
B29Sicilian, Nimzovich-Rubinstein variation125039.9%58.4%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit7259.7%53.5%
B30Sicilian defence412940.7%54.4%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)658038.5%56.5%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)457741.6%56.3%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation4548.9%48.9%
B32Sicilian defence124638.9%55.4%
B32Sicilian, Flohr variation35137.0%58.4%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation170741.0%57.1%
B32Sicilian, Labourdonnais-Loewenthal variation40238.8%57.0%
B32Sicilian, Nimzovich variation3743.2%54.1%
B33Sicilian defence64339.7%55.3%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation142035.6%55.5%
B33Sicilian, Pelikan, Bird variation27336.3%64.7%
B33Sicilian, Pelikan, Chelyabinsk variation248837.3%57.7%
B33Sicilian, Sveshnikov variation166840.3%50.8%
B34Sicilian, accelerated fianchetto, exchange variation3839.5%48.7%
B34Sicilian, accelerated fianchetto, modern variation62139.0%53.3%
B35Sicilian, accelerated fianchetto, modern variation with Bc4254343.5%53.8%
B36Sicilian, accelerated fianchetto, Gurgenidze variation36548.8%60.5%
B36Sicilian, accelerated fianchetto, Maroczy bind120545.4%58.4%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg722343.0%55.6%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3125342.9%58.2%
B39Sicilian, accelerated fianchetto, Breyer variation72341.6%58.3%
B40Sicilian defence812539.0%54.0%
B40Sicilian, Anderssen variation107740.5%57.1%
B40Sicilian, Marshall variation825.0%75.0%
B40Sicilian, Pin variation (Sicilian counter-attack)3834.2%64.5%
B40Sicilian, Pin, Jaffe variation40.0%100.0%
B40Sicilian, Pin, Koch variation8523.5%76.5%
B41Sicilian, Kan variation27042.2%54.4%
B41Sicilian, Kan, Maroczy bind (Reti variation)71437.7%58.8%
B41Sicilian, Kan, Maroczy bind - Bronstein variation3540.0%37.1%
B42Sicilian, Kan, 5.Bd3254939.2%58.1%
B42Sicilian, Kan, Gipslis variation8838.6%63.6%
B42Sicilian, Kan, Polugaievsky variation190138.2%55.0%
B42Sicilian, Kan, Swiss cheese variation34035.9%61.2%
B43Sicilian, Kan, 5.Nc3417339.3%56.2%
B44Sicilian defence41243.0%53.0%
B44Sicilian, Szen (`anti-Taimanov') variation104642.8%53.0%
B44Sicilian, Szen variation, Dely-Kasparov gambit3357.6%62.1%
B44Sicilian, Szen, hedgehog variation25241.3%50.8%
B45Sicilian, Taimanov variation245538.5%56.8%
B45Sicilian, Taimanov, American attack1942.1%42.1%
B46Sicilian, Taimanov variation396039.1%55.8%
B47Sicilian, Taimanov (Bastrikov) variation464342.1%54.4%
B48Sicilian, Taimanov variation413237.9%56.4%
B49Sicilian, Taimanov variation81644.1%57.5%
B50Sicilian691840.0%52.6%
B50Sicilian, wing gambit deferred3534.3%42.9%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack285140.0%55.1%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7261442.4%50.7%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit22040.9%58.2%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation119045.1%55.5%
B53Sicilian, Chekhover variation227842.1%52.0%
B53Sicilian, Chekhover, Zaitsev variation10432.7%59.6%
B54Sicilian144837.9%55.1%
B54Sicilian, Prins (Moscow) variation85838.7%54.9%
B55Sicilian, Prins variation, Venice attack10339.8%51.0%
B56Sicilian229339.3%53.2%
B56Sicilian, Venice attack8537.6%58.8%
B57Sicilian, Magnus Smith trap1145.5%40.9%
B57Sicilian, Sozin, Benko variation147039.4%51.7%
B57Sicilian, Sozin, not Scheveningen32141.4%55.6%
B58Sicilian, Boleslavsky variation51237.5%48.4%
B58Sicilian, Boleslavsky, Louma variation5435.2%54.6%
B58Sicilian, classical25742.8%49.0%
B59Sicilian, Boleslavsky variation, 7.Nb321048.6%52.9%
B60Sicilian, Richter-Rauzer96936.0%58.5%
B60Sicilian, Richter-Rauzer, Bondarevsky variation4546.7%65.6%
B60Sicilian, Richter-Rauzer, Larsen variation18830.9%61.2%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd269436.7%62.0%
B62Sicilian, Richter-Rauzer, 6...e66642.4%59.1%
B62Sicilian, Richter-Rauzer, Keres variation12031.7%49.2%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation11638.8%49.6%
B62Sicilian, Richter-Rauzer, Podvebrady variation2445.8%35.4%
B62Sicilian, Richter-Rauzer, Richter attack714.3%50.0%
B63Sicilian, Richter-Rauzer, Rauzer attack17837.6%57.0%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7141338.4%56.8%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f435038.6%57.6%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1241.7%62.5%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd465241.9%55.4%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6612534.0%51.8%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7328034.1%55.6%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be716234.6%56.2%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf614128.4%58.9%
B70Sicilian, dragon variation108243.8%52.2%
B71Sicilian, dragon, Levenfish variation44536.6%52.7%
B71Sicilian, dragon, Levenfish; Flohr variation5240.4%58.7%
B72Sicilian, dragon, 6.Be322733.5%51.5%
B72Sicilian, dragon, classical attack16842.9%55.4%
B72Sicilian, dragon, classical, Amsterdam variation6529.2%48.5%
B72Sicilian, dragon, classical, Grigoriev variation5747.4%50.0%
B72Sicilian, dragon, classical, Nottingham variation5543.6%54.5%
B73Sicilian, dragon, classical, 8.O-O46947.5%53.6%
B73Sicilian, dragon, classical, Richter variation18349.7%57.7%
B73Sicilian, dragon, classical, Zollner gambit1233.3%41.7%
B74Sicilian, dragon, classical, 9.Nb355849.1%49.1%
B74Sicilian, dragon, classical, Alekhine variation2951.7%63.8%
B74Sicilian, dragon, classical, Reti-Tartakower variation10245.1%53.9%
B74Sicilian, dragon, classical, Spielmann variation1030.0%55.0%
B75Sicilian, dragon, Yugoslav attack51532.4%57.8%
B76Sicilian, dragon, Yugoslav attack, 7...O-O42635.4%54.3%
B76Sicilian, dragon, Yugoslav attack, Rauser variation116834.2%62.8%
B77Sicilian, dragon, Yugoslav attack, 9...Bd726838.8%56.7%
B77Sicilian, dragon, Yugoslav attack, 9.Bc415637.2%55.1%
B77Sicilian, dragon, Yugoslav attack, Byrne variation1844.4%66.7%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O51429.2%56.6%
B79Sicilian, dragon, Yugoslav attack, 12.h41625.0%62.5%
B80Sicilian, Scheveningen variation144532.0%54.3%
B80Sicilian, Scheveningen, English variation21934.2%55.0%
B80Sicilian, Scheveningen, Vitolins variation5644.6%50.9%
B80Sicilian, Scheveningen, fianchetto variation25330.4%51.6%
B81Sicilian, Scheveningen, Keres attack255634.5%60.2%
B82Sicilian, Scheveningen, 6.f462836.3%56.7%
B82Sicilian, Scheveningen, Tal variation15834.2%64.6%
B83Sicilian, Scheveningen, 6.Be262141.2%52.8%
B83Sicilian, modern Scheveningen57443.7%50.4%
B83Sicilian, modern Scheveningen, main line60045.0%53.0%
B83Sicilian, modern Scheveningen, main line with Nb310736.4%55.6%
B84Sicilian, Scheveningen (Paulsen), classical variation435339.9%52.4%
B84Sicilian, Scheveningen, classical, Nd7 system12933.3%50.8%
B85Sicilian, Scheveningen, classical15240.1%50.3%
B85Sicilian, Scheveningen, classical main line40746.2%56.8%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6450.0%50.0%
B85Sicilian, Scheveningen, classical, Maroczy system2634.6%55.8%
B86Sicilian, Sozin attack30044.3%53.2%
B87Sicilian, Sozin with ...a6 and ...b592637.3%49.6%
B88Sicilian, Sozin, Fischer variation1650.0%50.0%
B88Sicilian, Sozin, Leonhardt variation72539.3%55.1%
B89Sicilian, Sozin, 7.Be3116237.7%51.5%
B89Sicilian, Velimirovic attack85834.3%51.9%
B90Sicilian, Najdorf415737.3%54.0%
B90Sicilian, Najdorf, Adams attack215140.4%53.6%
B90Sicilian, Najdorf, Byrne (English) attack2330436.2%53.3%
B90Sicilian, Najdorf, Lipnitzky attack145937.5%50.3%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation130141.5%54.0%
B92Sicilian, Najdorf, Opovcensky variation644941.6%53.4%
B93Sicilian, Najdorf, 6.f4205540.3%51.1%
B94Sicilian, Najdorf, 6.Bg5136038.6%53.1%
B95Sicilian, Najdorf, 6...e6158638.7%50.2%
B96Sicilian, Najdorf, 7.f4182136.9%51.9%
B96Sicilian, Najdorf, Polugayevsky variation12939.5%54.7%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation4219.0%52.4%
B97Sicilian, Najdorf, 7...Qb6191034.9%47.4%
B97Sicilian, Najdorf, Poisoned pawn variation130946.3%50.6%
B98Sicilian, Najdorf variation37129.4%57.5%
B98Sicilian, Najdorf, 7...Be715234.9%55.6%
B98Sicilian, Najdorf, Browne variation5630.4%63.4%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2347.8%50.0%
B99Sicilian, Najdorf, 7...Be7 main line68230.2%53.7%
C00French defence111030.4%56.2%
C00French defence, Steiner variation100242.7%51.6%
C00French, Alapin variation1827.8%58.3%
C00French, Chigorin variation134531.8%50.3%
C00French, King's Indian attack300036.1%51.7%
C00French, Labourdonnais variation30629.4%45.1%
C00French, Pelikan variation7639.5%51.3%
C00French, Reti (Spielmann) variation25635.5%51.4%
C00French, Reversed Philidor formation1723.5%64.7%
C00French, Schlechter variation25441.7%52.4%
C00French, Steinitz attack3330.3%45.5%
C00French, Two knights variation36535.6%53.2%
C00French, Wing gambit6841.2%60.3%
C00Lengfellner system2524.0%60.0%
C00St. George defence20946.4%59.1%
C01French, exchange variation213944.3%53.4%
C01French, exchange, Bogolyubov variation1050.0%45.0%
C01French, exchange, Svenonius variation8736.8%51.7%
C02French, advance variation171932.1%56.5%
C02French, advance, Euwe variation182736.5%55.4%
C02French, advance, Milner-Barry gambit14436.8%49.0%
C02French, advance, Nimzovich system15128.5%50.7%
C02French, advance, Nimzovich variation1827.8%47.2%
C02French, advance, Paulsen attack223933.9%55.0%
C02French, advance, Steinitz variation68740.5%57.6%
C02French, advance, Wade variation42539.3%58.5%
C03French, Tarrasch326843.5%57.0%
C03French, Tarrasch, Guimard variation15731.2%62.1%
C03French, Tarrasch, Haberditz variation616.7%75.0%
C04French, Tarrasch, Guimard main line59129.3%60.8%
C05French, Tarrasch, Botvinnik variation11435.1%65.8%
C05French, Tarrasch, closed variation155231.2%60.6%
C06French, Tarrasch, Leningrad variation1921.1%84.2%
C06French, Tarrasch, closed variation, main line117138.9%59.8%
C07French, Tarrasch, Eliskases variation17448.3%54.0%
C07French, Tarrasch, open variation468447.7%54.2%
C08French, Tarrasch, open, 4.ed ed169451.7%54.6%
C09French, Tarrasch, open variation, main line133651.9%56.7%
C10French, Fort Knox variation78340.7%57.3%
C10French, Frere (Becker) variation3237.5%62.5%
C10French, Marshall variation250.0%25.0%
C10French, Paulsen variation111130.5%60.3%
C10French, Rubinstein variation317648.6%55.8%
C10French, Rubinstein, Capablanca line1060.0%50.0%
C11French defence27145.0%54.2%
C11French, Burn variation618245.6%53.0%
C11French, Henneberger variation1533.3%50.0%
C11French, Steinitz variation135037.7%54.7%
C11French, Steinitz, Boleslavsky variation452536.2%57.1%
C11French, Steinitz, Bradford attack333.3%50.0%
C11French, Steinitz, Gledhill attack14634.2%52.7%
C11French, Swiss variation6045.0%54.2%
C12French, MacCutcheon variation17941.9%45.0%
C12French, MacCutcheon, Bernstein variation3125.8%58.1%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C12French, MacCutcheon, Chigorin variation9742.3%49.0%
C12French, MacCutcheon, Dr. Olland (Dutch) variation13741.6%60.2%
C12French, MacCutcheon, Duras variation425.0%62.5%
C12French, MacCutcheon, Grigoriev variation3360.6%54.5%
C12French, MacCutcheon, Janowski variation16137.3%58.4%
C12French, MacCutcheon, Lasker variation24328.8%60.9%
C12French, MacCutcheon, Lasker variation, 8...g643436.6%59.3%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
C12French, MacCutcheon, advance variation1526.7%20.0%
C13French, Albin-Alekhine-Chatard attack38931.1%55.7%
C13French, Albin-Alekhine-Chatard attack, Breyer variation10239.2%62.7%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation2020.0%65.0%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation6937.7%66.7%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation366.7%66.7%
C13French, classical3545.7%45.7%
C13French, classical, Anderssen variation2433.3%41.7%
C13French, classical, Anderssen-Richter variation1625.0%50.0%
C13French, classical, Frankfurt variation837.5%81.3%
C13French, classical, Tartakower variation3531.4%55.7%
C13French, classical, Vistaneckis (Nimzovich) variation137.7%57.7%
C14French, classical variation1414.3%42.9%
C14French, classical, Alapin variation13046.2%53.1%
C14French, classical, Pollock variation1729.4%44.1%
C14French, classical, Rubinstein variation4837.5%62.5%
C14French, classical, Stahlberg variation650.0%58.3%
C14French, classical, Steinitz variation89736.6%58.8%
C14French, classical, Tarrasch variation2425.0%58.3%
C15French, Winawer (Nimzovich) variation131341.2%54.8%
C15French, Winawer, Alekhine (Maroczy) gambit32040.6%55.9%
C15French, Winawer, Alekhine gambit1637.5%56.3%
C15French, Winawer, Alekhine gambit, Kan variation7042.9%52.9%
C15French, Winawer, Kondratiyev variation1855.6%61.1%
C15French, Winawer, fingerslip variation6634.8%46.2%
C16French, Winawer, Petrosian variation29032.4%55.5%
C16French, Winawer, advance variation120133.0%56.8%
C17French, Winawer, advance variation11938.7%58.0%
C17French, Winawer, advance, 5.a357636.5%63.5%
C17French, Winawer, advance, Bogolyubov variation43238.7%52.2%
C17French, Winawer, advance, Rauzer variation2236.4%63.6%
C17French, Winawer, advance, Russian variation7544.0%51.3%
C18French, Winawer, advance variation69427.2%62.6%
C18French, Winawer, classical variation45231.2%58.7%
C19French, Winawer, advance, 6...Ne749634.9%60.8%
C19French, Winawer, advance, Smyslov variation22128.1%64.7%
C19French, Winawer, advance, poisoned pawn variation296933.8%61.6%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation86532.4%62.8%
C19French, Winawer, advance, positional main line129230.9%58.6%
C20Alapin's opening6233.9%57.3%
C20KP, Indian opening14237.3%47.5%
C20KP, King's head opening250.0%25.0%
C20KP, Lopez opening2040.0%35.0%
C20KP, Mengarini's opening2240.9%29.5%
C20KP, Napoleon's opening4438.6%60.2%
C20KP, Patzer opening13827.5%41.3%
C20King's pawn game11636.2%50.9%
C21Centre game36339.7%55.9%
C21Danish gambit29637.2%49.3%
C21Danish gambit, Collijn defence560.0%50.0%
C21Danish gambit, Schlechter defence1723.5%47.1%
C21Danish gambit, Soerensen defence21741.5%51.2%
C21Halasz gambit2231.8%43.2%
C22Centre game45737.2%46.0%
C22Centre game, Berger variation44638.8%51.9%
C22Centre game, Charousek variation862.5%56.3%
C22Centre game, Hall variation2937.9%36.2%
C22Centre game, Paulsen attack44138.1%53.5%
C22Centre game, l'Hermet variation80.0%37.5%
C23Bishop's opening35433.1%53.5%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C23Bishop's opening, Classical variation11340.7%52.2%
C23Bishop's opening, Lewis gambit40.0%75.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
C23Bishop's opening, Lopez gambit20.0%0.0%
C23Bishop's opening, MacDonnell double gambit250.0%25.0%
C23Bishop's opening, Philidor counter-attack23149.8%50.0%
C23Bishop's opening, Philidor variation944.4%55.6%
C23Bishop's opening, Wing gambit650.0%41.7%
C24Bishop's opening, Berlin defence198641.8%52.8%
C24Bishop's opening, Ponziani gambit2030.0%30.0%
C24Bishop's opening, Urusov gambit13245.5%40.2%
C24Bishop's opening, Urusov gambit, Panov variation450.0%50.0%
C25Vienna gambit17835.4%54.2%
C25Vienna game44935.9%58.0%
C25Vienna game, Max Lange defence4744.7%52.1%
C25Vienna, Paulsen variation22832.9%56.8%
C25Vienna, Pierce gambit2725.9%53.7%
C25Vienna, Steinitz gambit250.0%25.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation10.0%100.0%
C26Vienna game51841.3%54.1%
C26Vienna, Falkbeer variation12335.8%56.9%
C26Vienna, Mengarini variation3557.1%48.6%
C26Vienna, Paulsen-Mieses variation91740.0%52.6%
C27Boden-Kieseritsky gambit4535.6%35.6%
C27Boden-Kieseritsky gambit, Lichtenhein defence2334.8%52.2%
C27Vienna game25642.2%52.7%
C27Vienna, Alekhine variation3839.5%48.7%
C27Vienna, `Frankenstein-Dracula' variation1910.5%78.9%
C28Vienna game67940.4%51.8%
C29Vienna gambit66737.2%49.6%
C29Vienna gambit, Bardeleben variation1827.8%52.8%
C29Vienna gambit, Breyer variation22034.5%51.8%
C29Vienna gambit, Kaufmann variation1241.7%70.8%
C29Vienna gambit, Paulsen attack5143.1%52.9%
C29Vienna gambit, Steinitz variation4240.5%46.4%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C30KGD, 2...Nf67028.6%61.4%
C30KGD, Keene's defence9428.7%64.4%
C30KGD, Mafia defence837.5%68.8%
C30KGD, Norwalde variation2213.6%79.5%
C30KGD, classical counter-gambit1050.0%55.0%
C30KGD, classical variation27628.3%54.3%
C30KGD, classical, 4.c321731.8%59.2%
C30KGD, classical, Hanham variation650.0%58.3%
C30KGD, classical, Heath variation1346.2%53.8%
C30KGD, classical, Marshall attack1080.0%50.0%
C30KGD, classical, Reti variation955.6%50.0%
C30KGD, classical, Soldatenkov variation728.6%28.6%
C30KGD, classical, Svenonius variation366.7%66.7%
C30King's gambit35037.1%57.1%
C31KGD, Falkbeer counter-gambit31135.4%53.1%
C31KGD, Falkbeer, 3...e45147.1%47.1%
C31KGD, Falkbeer, 4.d36050.0%63.3%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C31KGD, Falkbeer, Morphy gambit2123.8%50.0%
C31KGD, Falkbeer, Nimzovich variation2937.9%53.4%
C31KGD, Falkbeer, Rubinstein variation3010.0%58.3%
C31KGD, Falkbeer, Tartakower variation7058.6%47.9%
C31KGD, Nimzovich counter-gambit32036.6%51.7%
C32KGD, Falkbeer, 5.de6237.1%50.8%
C32KGD, Falkbeer, Charousek gambit1361.5%53.8%
C32KGD, Falkbeer, Keres variation3941.0%53.8%
C32KGD, Falkbeer, Reti variation2835.7%53.6%
C32KGD, Falkbeer, main line, 7...Bf51127.3%68.2%
C33KGA, Breyer gambit742.9%50.0%
C33KGA, Carrera (Basman) gambit825.0%50.0%
C33KGA, Keres (Mason-Steinitz) gambit6942.0%45.7%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit1315.4%53.8%
C33KGA, Villemson (Steinitz) gambit2030.0%50.0%
C33KGA, bishop's gambit39235.7%50.3%
C33KGA, bishop's gambit, Anderssen variation633.3%50.0%
C33KGA, bishop's gambit, Bledow variation18828.2%42.8%
C33KGA, bishop's gambit, Boden defence955.6%50.0%
C33KGA, bishop's gambit, Bogolyubov variation9343.0%50.5%
C33KGA, bishop's gambit, Bryan counter-gambit20.0%0.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence3625.0%34.7%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
C33KGA, bishop's gambit, Jaenisch variation15541.3%47.1%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit1020.0%50.0%
C33KGA, bishop's gambit, Maurian defence4515.6%41.1%
C33KGA, bishop's gambit, McDonnell attack10.0%100.0%
C33KGA, bishop's gambit, Morphy variation6934.8%56.5%
C33KGA, bishop's gambit, Paulsen attack2339.1%45.7%
C33KGA, bishop's gambit, Ruy Lopez defence5343.4%51.9%
C33KGA, bishop's gambit, Steinitz defence10528.6%50.5%
C33KGA, bishop's gambit, classical defence60.0%33.3%
C33King's gambit accepted333.3%16.7%
C34KGA, Becker defence10031.0%50.5%
C34KGA, Bonsch-Osmolovsky variation21430.8%53.7%
C34KGA, Fischer defence33531.9%46.1%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C34KGA, Schallop defence23630.5%53.8%
C34King's knight's gambit4628.3%48.9%
C35KGA, Cunningham defence27428.5%51.5%
C35KGA, Cunningham, Euwe defence13826.1%47.1%
C35KGA, Cunningham, three pawns gambit20.0%100.0%
C36KGA, Abbazia defence (classical defence, modern defence[!])14840.5%59.5%
C36KGA, Abbazia defence, Botvinnik variation333.3%50.0%
C36KGA, Abbazia defence, modern variation79239.5%47.8%
C37KGA, Blachly gambit3834.2%30.3%
C37KGA, Cochrane gambit714.3%21.4%
C37KGA, King's knight's gambit3759.5%51.4%
C37KGA, Muzio gambit1833.3%33.3%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C37KGA, Quaade gambit4932.7%38.8%
C37KGA, Rosentreter gambit3636.1%43.1%
C37KGA, Salvio gambit1526.7%46.7%
C37KGA, Salvio gambit, Anderssen counter-attack50.0%60.0%
C37KGA, Silberschmidt gambit633.3%33.3%
C38KGA, Hanstein gambit1323.1%57.7%
C38KGA, Philidor gambit2920.7%31.0%
C38KGA, Philidor gambit, Schultz variation1060.0%30.0%
C38King's knight's gambit6233.9%25.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C39KGA, Kieseritsky, Berlin defence9233.7%42.9%
C39KGA, Kieseritsky, Berlin defence, 6.Bc47230.6%41.7%
C39KGA, Kieseritsky, Brentano (Campbell) defence333.3%50.0%
C39KGA, Kieseritsky, Brentano defence333.3%50.0%
C39KGA, Kieseritsky, Brentano defence, Caro variation3100.0%50.0%
C39KGA, Kieseritsky, Kolisch defence15543.9%46.5%
C39KGA, Kieseritsky, Neumann defence2540.0%60.0%
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%
C39KGA, Kieseritsky, Rice gambit1921.1%26.3%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence7044.3%40.7%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence3444.1%54.4%
C39King's knight's gambit1428.6%50.0%
C40Greco defence1225.0%45.8%
C40Gunderam defence13332.3%64.3%
C40King's knight opening20.0%50.0%
C40Latvian counter-gambit38729.7%59.3%
C40Latvian gambit, 3.Bc42152.4%50.0%
C40Latvian, Behting variation3100.0%50.0%
C40Latvian, Fraser defence6131.1%68.0%
C40Latvian, Nimzovich variation20.0%50.0%
C40Latvian, Polerio variation2532.0%44.0%
C40QP counter-gambit (elephant gambit)3250.0%65.6%
C40QP counter-gambit, Maroczy gambit540.0%80.0%
C41Philidor's defence50135.7%59.0%
C41Philidor, Boden variation1050.0%45.0%
C41Philidor, Hanham variation6333.3%62.7%
C41Philidor, Hanham, Delmar variation1428.6%42.9%
C41Philidor, Hanham, Kmoch variation10.0%100.0%
C41Philidor, Hanham, Krause variation1850.0%47.2%
C41Philidor, Hanham, Schlechter variation3551.4%65.7%
C41Philidor, Hanham, Steiner variation2437.5%64.6%
C41Philidor, Improved Hanham variation146539.0%57.9%
C41Philidor, Larsen variation6625.8%65.9%
C41Philidor, Lopez counter-gambit30.0%66.7%
C41Philidor, Nimzovich (Jaenisch) variation2733.3%50.0%
C41Philidor, Nimzovich variation6743.3%59.0%
C41Philidor, Nimzovich, Klein variation1560.0%56.7%
C41Philidor, Nimzovich, Larobok variation9448.9%38.3%
C41Philidor, Nimzovich, Locock variation450.0%50.0%
C41Philidor, Nimzovich, Rellstab variation4738.3%66.0%
C41Philidor, Nimzovich, Sokolsky variation1478.6%60.7%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
C41Philidor, Paulsen attack250.0%25.0%
C41Philidor, Philidor counter-gambit3016.7%71.7%
C41Philidor, Philidor counter-gambit, Zukertort variation1250.0%66.7%
C41Philidor, Philidor counter-gambit, del Rio attack40.0%75.0%
C41Philidor, Steinitz variation20.0%0.0%
C41Philidor, exchange variation111737.8%59.8%
C42Petrov three knights game41939.4%58.1%
C42Petrov's defence44941.0%53.2%
C42Petrov, Cochrane gambit8721.8%36.2%
C42Petrov, Cozio (Lasker) attack61549.9%52.0%
C42Petrov, Damiano variation3246.9%54.7%
C42Petrov, French attack966.7%66.7%
C42Petrov, Italian variation6527.7%49.2%
C42Petrov, Kaufmann attack32948.6%52.6%
C42Petrov, Nimzovich attack188145.9%55.1%
C42Petrov, Paulsen attack25543.1%51.0%
C42Petrov, classical attack130049.6%57.7%
C42Petrov, classical attack, Berger variation2560.0%58.0%
C42Petrov, classical attack, Chigorin variation72742.8%57.6%
C42Petrov, classical attack, Jaenisch variation190246.6%58.3%
C42Petrov, classical attack, Krause variation944.4%33.3%
C42Petrov, classical attack, Marshall variation128044.5%58.0%
C42Petrov, classical attack, Mason variation18746.5%58.6%
C42Petrov, classical attack, Tarrasch variation366.7%66.7%
C42Petrov, classical attack, close variation21145.0%59.0%
C43Petrov, Urusov gambit1414.3%71.4%
C43Petrov, modern (Steinitz) attack6339.7%56.3%
C43Petrov, modern attack, Bardeleben variation944.4%55.6%
C43Petrov, modern attack, Steinitz variation250.0%75.0%
C43Petrov, modern attack, Symmetrical variation341945.2%52.8%
C43Petrov, modern attack, Trifunovic variation7650.0%51.3%
C43Petrov, modern attack, main line26448.5%57.6%
C44Dresden opening1827.8%41.7%
C44Inverted Hanham5234.6%44.2%
C44Inverted Hungarian4645.7%51.1%
C44King's pawn game13830.4%50.0%
C44Konstantinopolsky opening6136.1%60.7%
C44Ponziani counter-gambit13440.3%60.4%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C44Ponziani opening37230.9%46.1%
C44Ponziani, Caro variation27643.8%49.5%
C44Ponziani, Fraser defence7837.2%66.0%
C44Ponziani, Jaenisch counter-attack251344.7%52.2%
C44Ponziani, Leonhardt variation14636.3%50.3%
C44Ponziani, Reti variation5639.3%60.7%
C44Ponziani, Romanishin variation2433.3%50.0%
C44Ponziani, Steinitz variation54841.8%46.1%
C44Scotch gambit14240.8%56.3%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Scotch gambit, Benima defence6939.1%57.2%
C44Scotch gambit, Cochrane-Shumov defence1040.0%70.0%
C44Scotch gambit, Dubois-Reti defence41042.7%53.8%
C44Scotch gambit, Hanneken variation10.0%100.0%
C44Scotch opening2050.0%50.0%
C44Scotch, Goering gambit26442.0%54.0%
C44Scotch, Goering gambit, Bardeleben variation1540.0%46.7%
C44Scotch, Lolli variation2433.3%58.3%
C44Scotch, Relfsson gambit ('MacLopez')1040.0%50.0%
C44Tayler opening425.0%37.5%
C45Scotch game324343.4%54.1%
C45Scotch, Blackburne attack3043.3%51.7%
C45Scotch, Blumenfeld attack1637.5%31.3%
C45Scotch, Ghulam Kassim variation875.0%50.0%
C45Scotch, Horwitz attack4235.7%56.0%
C45Scotch, Meitner variation4854.2%50.0%
C45Scotch, Mieses variation190043.2%53.6%
C45Scotch, Paulsen attack2045.0%52.5%
C45Scotch, Potter variation77540.6%52.3%
C45Scotch, Pulling counter-attack520.0%70.0%
C45Scotch, Romanishin variation8339.8%56.0%
C45Scotch, Schmidt variation92251.4%48.5%
C45Scotch, Steinitz variation4833.3%58.3%
C45Scotch, Tartakower variation2825.0%44.6%
C46Four knights game102042.1%51.0%
C46Four knights, Gunsberg variation16343.6%49.4%
C46Four knights, Italian variation24944.2%47.4%
C46Four knights, Schultze-Mueller gambit50.0%20.0%
C46Three knights game37331.1%59.8%
C46Three knights, Schlechter variation4639.1%54.3%
C46Three knights, Steinitz variation25427.2%56.9%
C46Three knights, Steinitz, Rosenthal variation2948.3%48.3%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C47Four knights, Belgrade gambit18342.6%52.5%
C47Four knights, Scotch variation3435.3%52.9%
C47Four knights, Scotch, 4...exd462853.5%52.7%
C47Four knights, Scotch, Krause variation6839.7%64.0%
C48Four knights, Bardeleben variation850.0%50.0%
C48Four knights, Marshall variation1020.0%50.0%
C48Four knights, Ranken variation3345.5%62.1%
C48Four knights, Rubinstein counter-gambit142742.3%52.0%
C48Four knights, Rubinstein counter-gambit, 5.Be21040.0%40.0%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1952.6%47.4%
C48Four knights, Rubinstein counter-gambit, Henneberger variation10350.5%50.5%
C48Four knights, Rubinstein counter-gambit, exchange variation23367.4%52.6%
C48Four knights, Spanish variation35749.9%55.5%
C48Four knights, Spanish, classical defence26045.4%49.6%
C48Four knights, Spielmann variation862.5%43.8%
C49Four knights10051.0%47.5%
C49Four knights, Gunsberg counter-attack560.0%50.0%
C49Four knights, Janowski variation2540.0%68.0%
C49Four knights, Nimzovich (Paulsen) variation9654.2%57.3%
C49Four knights, Svenonius variation560.0%50.0%
C49Four knights, double Ruy Lopez26642.5%56.6%
C49Four knights, symmetrical variation22741.9%54.8%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C49Four knights, symmetrical, Capablanca variation2454.2%60.4%
C49Four knights, symmetrical, Maroczy system9243.5%56.5%
C49Four knights, symmetrical, Metger unpin38737.7%51.2%
C49Four knights, symmetrical, Pillsbury variation6845.6%44.9%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C50Giuoco Pianissimo376341.0%53.0%
C50Giuoco Pianissimo, Canal variation22143.0%52.3%
C50Giuoco Pianissimo, Italian four knights variation63441.0%51.7%
C50Giuoco Piano245642.2%52.3%
C50Giuoco Piano, four knights variation7238.9%54.2%
C50Hungarian defence24441.0%50.0%
C50King's pawn game28535.4%60.5%
C50Rousseau gambit333.3%50.0%
C51Evans counter-gambit3630.6%56.9%
C51Evans gambit2040.0%65.0%
C51Evans gambit declined6238.7%53.2%
C51Evans gambit declined, 5.a421140.8%47.4%
C51Evans gambit declined, Lange variation20.0%0.0%
C51Evans gambit declined, Showalter variation5345.3%58.5%
C51Evans gambit, 5...Be77736.4%61.0%
C51Evans gambit, Cordel variation11147.7%46.4%
C51Evans gambit, Fraser attack1428.6%57.1%
C51Evans gambit, Goering attack450.0%75.0%
C51Evans gambit, Morphy attack3740.5%58.1%
C51Evans gambit, Paulsen variation2025.0%67.5%
C51Evans gambit, Stone-Ware variation28531.9%54.9%
C51Evans gambit, Ulvestad variation20.0%100.0%
C51Evans gambit, normal variation6030.0%46.7%
C52Evans gambit44039.5%49.1%
C52Evans gambit, Alapin-Steinitz variation1353.8%34.6%
C52Evans gambit, Lasker defence1435.7%25.0%
C52Evans gambit, Leonhardt variation633.3%50.0%
C52Evans gambit, Levenfish variation616.7%25.0%
C52Evans gambit, Richardson attack1936.8%28.9%
C52Evans gambit, Sanders-Alapin variation633.3%50.0%
C52Evans gambit, Tartakower attack10145.5%47.5%
C52Evans gambit, Waller attack922.2%88.9%
C52Evans gambit, compromised defence5425.9%70.4%
C52Evans gambit, compromised defence, Paulsen variation1723.5%58.8%
C52Evans gambit, compromised defence, Potter variation10.0%100.0%
C53Giuoco Piano374840.1%52.5%
C53Giuoco Piano, Anderssen variation4755.3%46.8%
C53Giuoco Piano, Bird's attack20933.5%50.7%
C53Giuoco Piano, Eisinger variation20.0%100.0%
C53Giuoco Piano, LaBourdonnais variation6549.2%58.5%
C53Giuoco Piano, Mestel variation1216.7%66.7%
C53Giuoco Piano, centre-holding variation9042.2%61.1%
C53Giuoco Piano, close variation14737.4%59.5%
C54Giuoco Piano25153.4%50.2%
C54Giuoco Piano, Moeller (Therkatz) attack4454.5%47.7%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C55Giuoco piano20.0%50.0%
C55Two knights defence13437.3%51.5%
C55Two knights defence (Modern bishop's opening)196839.5%55.9%
C55Two knights defence, Keidanz variation2100.0%50.0%
C55Two knights defence, Perreux variation4656.5%50.0%
C55Two knights, Max Lange attack4431.8%61.4%
C55Two knights, Max Lange attack, Krause variation450.0%75.0%
C55Two knights, Max Lange attack, Loman defence425.0%37.5%
C55Two knights, Max Lange attack, Marshall variation922.2%66.7%
C55Two knights, Max Lange attack, Rubinstein variation1100.0%50.0%
C55Two knights, Max Lange attack, Schlechter variation3562.9%51.4%
C55Two knights, Max Lange attack, Steinitz variation1741.2%67.6%
C56Two knights defence16147.8%49.4%
C56Two knights defence, Canal variation540.0%40.0%
C57Two knights defence2025.0%42.5%
C57Two knights defence, Fegatello attack9023.3%51.7%
C57Two knights defence, Fegatello attack, Leonhardt variation922.2%55.6%
C57Two knights defence, Fegatello attack, Polerio defence40.0%100.0%
C57Two knights defence, Fritz variation10339.8%50.0%
C57Two knights defence, Fritz, Gruber variation1637.5%43.8%
C57Two knights defence, Lolli attack2133.3%59.5%
C57Two knights defence, Pincus variation1040.0%30.0%
C57Two knights defence, Ulvestad variation11451.8%46.9%
C57Two knights defence, Wilkes Barre (Traxler) variation13534.1%59.3%
C58Two knights defence39237.5%57.0%
C58Two knights defence, Blackburne variation425.0%62.5%
C58Two knights defence, Bogolyubov variation9632.3%43.2%
C58Two knights defence, Colman variation8433.3%46.4%
C58Two knights defence, Kieseritsky variation4531.1%57.8%
C58Two knights defence, Paoli variation1030.0%75.0%
C58Two knights defence, Yankovich variation1931.6%26.3%
C59Two knights defence21239.2%48.8%
C59Two knights defence, Goering variation812.5%31.3%
C59Two knights defence, Steinitz variation41733.1%48.0%
C60Ruy Lopez (Spanish opening)8432.1%57.7%
C60Ruy Lopez, Cozio defence58940.2%53.6%
C60Ruy Lopez, Cozio defence, Paulsen variation7441.9%65.5%
C60Ruy Lopez, Lucena defence1241.7%45.8%
C60Ruy Lopez, Nuernberg variation40.0%50.0%
C60Ruy Lopez, Vinogradov variation250.0%75.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence63642.3%53.5%
C61Ruy Lopez, Bird's defence63837.6%56.6%
C61Ruy Lopez, Bird's defence, Paulsen variation944.4%66.7%
C62Ruy Lopez, old Steinitz defence48936.8%55.6%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation2245.5%54.5%
C63Ruy Lopez, Schliemann defence58542.7%57.6%
C63Ruy Lopez, Schliemann defence, Berger variation56045.0%57.0%
C64Ruy Lopez, Cordel gambit9940.4%55.6%
C64Ruy Lopez, classical (Cordel) defence38842.5%53.7%
C64Ruy Lopez, classical defence, 4.c341643.5%57.8%
C64Ruy Lopez, classical defence, Benelux variation 49740.8%55.8%
C64Ruy Lopez, classical defence, Boden variation1457.1%57.1%
C64Ruy Lopez, classical defence, Charousek variation1435.7%67.9%
C64Ruy Lopez, classical defence, Zaitsev variation4100.0%50.0%
C65Ruy Lopez, Berlin defence630741.0%52.1%
C65Ruy Lopez, Berlin defence, 4.O-O25642.2%59.0%
C65Ruy Lopez, Berlin defence, Anderssen variation250.0%75.0%
C65Ruy Lopez, Berlin defence, Beverwijk variation66339.5%57.5%
C65Ruy Lopez, Berlin defence, Duras variation2937.9%46.6%
C65Ruy Lopez, Berlin defence, Kaufmann variation4250.0%53.6%
C65Ruy Lopez, Berlin defence, Mortimer variation2951.7%46.6%
C65Ruy Lopez, Berlin defence, Nyholm attack11753.8%53.4%
C66Ruy Lopez, Berlin defence, 4.O-O, d619546.7%59.2%
C66Ruy Lopez, Berlin defence, hedgehog variation14252.8%57.4%
C66Ruy Lopez, closed Berlin defence, Bernstein variation2445.8%60.4%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
C66Ruy Lopez, closed Berlin defence, Showalter variation7445.9%56.8%
C66Ruy Lopez, closed Berlin defence, Wolf variation6157.4%56.6%
C67Ruy Lopez, Berlin defence, Cordel variation9537.9%60.0%
C67Ruy Lopez, Berlin defence, Minckwitz variation5648.2%58.0%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation5841.4%56.9%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C67Ruy Lopez, Berlin defence, Winawer attack3333.3%68.2%
C67Ruy Lopez, Berlin defence, Zukertort variation2860.7%55.4%
C67Ruy Lopez, Berlin defence, open variation541348.6%53.7%
C67Ruy Lopez, open Berlin defence, 5...Be711540.0%53.0%
C67Ruy Lopez, open Berlin defence, Showalter variation2634.6%48.1%
C67Ruy Lopez, open Berlin defence, l'Hermet variation15061.3%51.3%
C68Ruy Lopez, exchange variation12539.2%53.2%
C68Ruy Lopez, exchange, Alekhine variation3647.2%43.1%
C68Ruy Lopez, exchange, Keres variation20948.8%49.8%
C68Ruy Lopez, exchange, Romanovsky variation5032.0%52.0%
C69Ruy Lopez, exchange variation, 5.O-O125342.5%53.0%
C69Ruy Lopez, exchange variation, Alapin gambit39844.2%51.0%
C69Ruy Lopez, exchange, Bronstein variation86538.3%50.7%
C69Ruy Lopez, exchange, Gligoric variation97944.6%54.7%
C70Ruy Lopez19937.2%53.8%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C70Ruy Lopez, Caro variation11443.0%57.5%
C70Ruy Lopez, Classical defence deferred12539.2%58.0%
C70Ruy Lopez, Cozio defence deferred58242.3%54.8%
C70Ruy Lopez, Graz variation1266.7%58.3%
C70Ruy Lopez, Schliemann defence deferred4337.2%60.5%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation19738.6%62.4%
C70Ruy Lopez, fianchetto defence deferred12248.4%57.0%
C71Ruy Lopez, modern Steinitz defence18941.8%55.3%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation25139.0%56.6%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C72Ruy Lopez, modern Steinitz defence, 5.O-O97641.4%57.5%
C73Ruy Lopez, modern Steinitz defence, Alapin variation32634.4%50.3%
C73Ruy Lopez, modern Steinitz defence, Richter variation27147.2%50.9%
C74Ruy Lopez, Siesta, Kopayev variation20232.7%55.9%
C74Ruy Lopez, modern Steinitz defence19031.1%61.8%
C74Ruy Lopez, modern Steinitz defence, siesta variation13036.2%49.6%
C75Ruy Lopez, modern Steinitz defence26243.1%52.9%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation19529.2%59.2%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation60537.5%53.8%
C77Ruy Lopez, Anderssen variation219643.5%52.2%
C77Ruy Lopez, Morphy defence32143.0%54.8%
C77Ruy Lopez, Morphy defence, Duras variation8239.0%58.5%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)11045.5%44.5%
C77Ruy Lopez, Wormald (Alapin) attack60642.7%53.1%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C77Ruy Lopez, four knights (Tarrasch) variation26045.0%55.6%
C78Ruy Lopez, ...b5 & ...d67436.5%60.1%
C78Ruy Lopez, 5.O-O150346.8%54.6%
C78Ruy Lopez, Archangelsk (counterthrust) variation204643.1%55.2%
C78Ruy Lopez, Moeller defence80343.0%54.6%
C78Ruy Lopez, Rabinovich variation10.0%0.0%
C78Ruy Lopez, Wing attack1942.1%52.6%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)50039.4%55.1%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1872.2%58.3%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation3351.5%56.1%
C80Ruy Lopez, open (Tarrasch) defence7544.0%62.0%
C80Ruy Lopez, open, 6.d45939.0%44.9%
C80Ruy Lopez, open, 7.Bb351241.4%53.3%
C80Ruy Lopez, open, 8...Be6138437.9%43.9%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C80Ruy Lopez, open, Bernstein variation110549.8%62.7%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2744.4%44.4%
C80Ruy Lopez, open, Friess attack1118.2%54.5%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
C80Ruy Lopez, open, Riga variation1145.5%68.2%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
C80Ruy Lopez, open, Tartakower variation1361.5%46.2%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C81Ruy Lopez, open, Howell attack28749.5%54.0%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1233.3%50.0%
C82Ruy Lopez, open, 9.c3933.3%72.2%
C82Ruy Lopez, open, Berlin variation2828.6%67.9%
C82Ruy Lopez, open, Dilworth variation19541.0%60.0%
C82Ruy Lopez, open, Italian variation11651.7%62.9%
C82Ruy Lopez, open, Motzko attack10648.1%59.0%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation1942.1%73.7%
C82Ruy Lopez, open, St. Petersburg variation23143.3%64.9%
C83Ruy Lopez, open, 9...Be7, 10.Re14839.6%53.1%
C83Ruy Lopez, open, Breslau variation366.7%66.7%
C83Ruy Lopez, open, Malkin variation1758.8%58.8%
C83Ruy Lopez, open, classical defence26148.7%59.6%
C84Ruy Lopez, closed defence219442.5%52.2%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C84Ruy Lopez, closed, centre attack20951.2%47.6%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)168539.8%49.7%
C86Ruy Lopez, Worrall attack3545.7%60.0%
C86Ruy Lopez, Worrall attack, sharp line33941.3%53.1%
C86Ruy Lopez, Worrall attack, solid line17339.9%51.2%
C87Ruy Lopez, closed, Averbach variation48141.0%60.0%
C88Ruy Lopez, Trajkovic counter-attack67242.1%52.2%
C88Ruy Lopez, closed140442.0%53.3%
C88Ruy Lopez, closed, 7...O-O400342.0%52.9%
C88Ruy Lopez, closed, 7...d6, 8.d42433.3%25.0%
C88Ruy Lopez, closed, 8.c33842.1%57.9%
C88Ruy Lopez, closed, Balla variation4637.0%55.4%
C88Ruy Lopez, closed, anti-Marshall 8.a4218841.0%53.6%
C89Ruy Lopez, Marshall counter-attack66352.8%54.3%
C89Ruy Lopez, Marshall counter-attack, 11...c625246.4%55.0%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C89Ruy Lopez, Marshall, Kevitz variation3100.0%50.0%
C89Ruy Lopez, Marshall, main line, 12.d2d424040.8%62.5%
C89Ruy Lopez, Marshall, main line, 14...Qh354251.7%51.5%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
C90Ruy Lopez, closed (with ...d6)127838.0%51.9%
C90Ruy Lopez, closed, Lutikov variation4751.1%53.2%
C90Ruy Lopez, closed, Pilnik variation91936.1%52.2%
C90Ruy Lopez, closed, Suetin variation9537.9%57.9%
C91Ruy Lopez, closed, 9.d4134738.9%58.4%
C91Ruy Lopez, closed, Bogolyubov variation413943.9%53.7%
C92Ruy Lopez, closed, 9.h345743.1%53.5%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)215139.3%57.1%
C92Ruy Lopez, closed, Keres (9...a5) variation2152.4%50.0%
C92Ruy Lopez, closed, Kholmov variation14232.4%64.1%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation34542.9%63.8%
C93Ruy Lopez, closed, Smyslov defence27140.6%59.0%
C94Ruy Lopez, closed, Breyer defence11338.1%58.0%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation81539.6%56.7%
C95Ruy Lopez, closed, Breyer, Gligoric variation6744.8%58.2%
C95Ruy Lopez, closed, Breyer, Simagin variation2540.0%56.0%
C96Ruy Lopez, closed (10...c5)76233.5%66.3%
C96Ruy Lopez, closed (8...Na5)4050.0%62.5%
C96Ruy Lopez, closed, Borisenko defence4540.0%57.8%
C96Ruy Lopez, closed, Keres (...Nd7) defence24537.6%66.1%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C97Ruy Lopez, closed, Chigorin defence87632.0%63.4%
C98Ruy Lopez, closed, Chigorin, 12...Nc615230.9%63.5%
C99Ruy Lopez, closed, Chigorin, 12...c5d492340.3%62.9%
D00Blackmar gambit25637.5%40.6%
D00Blackmar-Diemer gambit6943.5%43.5%
D00Blackmar-Diemer, Euwe defence4126.8%47.6%
D00Blackmar-Diemer, Lemberg counter-gambit2020.0%60.0%
D00Levitsky attack (Queen's bishop attack)298536.1%50.7%
D00Queen's pawn game137938.4%50.7%
D00Queen's pawn, Anti-Veresov650.0%58.3%
D00Queen's pawn, Chigorin variation103234.5%51.9%
D00Queen's pawn, Mason variation176138.9%53.1%
D00Queen's pawn, Mason variation, Steinitz counter-gambit87940.7%51.6%
D00Queen's pawn, stonewall attack8132.1%42.0%
D01Richter-Veresov attack92532.9%47.9%
D01Richter-Veresov attack, Richter variation2725.9%57.4%
D01Richter-Veresov attack, Veresov variation4240.5%48.8%
D02Queen's bishop game243341.6%53.3%
D02Queen's pawn game751541.4%53.2%
D02Queen's pawn game, Chigorin variation77240.0%56.4%
D02Queen's pawn game, Krause variation74241.9%55.2%
D03Torre attack (Tartakower variation)94138.9%50.8%
D04Queen's pawn game141139.4%51.6%
D05Colle system37149.1%52.3%
D05Queen's pawn game113839.9%51.9%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation52840.0%54.3%
D05Queen's pawn game, Zukertort variation7946.8%57.6%
D06QGD, Grau (Sahovic) defence33833.4%59.9%
D06QGD, Marshall defence37441.7%55.6%
D06QGD, symmetrical (Austrian) defence18145.9%60.5%
D07QGD, Chigorin defence129936.3%57.6%
D07QGD, Chigorin defence, Janowski variation17237.2%63.4%
D08QGD, Albin counter-gambit64838.1%55.3%
D08QGD, Albin counter-gambit, Alapin variation13148.9%55.7%
D08QGD, Albin counter-gambit, Balogh variation2330.4%76.1%
D08QGD, Albin counter-gambit, Janowski variation2123.8%73.8%
D08QGD, Albin counter-gambit, Krenosz variation1838.9%58.3%
D08QGD, Albin counter-gambit, Lasker trap616.7%58.3%
D09QGD, Albin counter-gambit, 5.g346842.5%56.3%
D10QGD Slav defence553740.9%54.3%
D10QGD Slav defence, Alekhine variation33838.2%57.5%
D10QGD Slav defence, exchange variation231145.2%55.6%
D10QGD Slav, Winawer counter-gambit30034.3%55.8%
D11QGD Slav, 3.Nf3431541.8%55.4%
D11QGD Slav, 4.e3674843.8%55.5%
D11QGD Slav, Breyer variation30042.3%57.8%
D12QGD Slav, 4.e3 Bf5449740.6%54.7%
D12QGD Slav, Amsterdam variation2254.5%45.5%
D12QGD Slav, exchange variation11037.3%48.6%
D13QGD Slav, exchange variation110649.0%55.2%
D14QGD Slav, exchange variation, 6.Bf4 Bf586652.7%52.4%
D14QGD Slav, exchange, Trifunovic variation27351.6%52.2%
D15QGD Slav accepted15740.8%51.0%
D15QGD Slav, 4.Nc3580041.0%55.4%
D15QGD Slav, 5.e3 (Alekhine variation)22733.0%56.6%
D15QGD Slav, Schlechter variation47645.4%59.9%
D15QGD Slav, Slav gambit7929.1%67.7%
D15QGD Slav, Suechting variation21633.3%59.7%
D15QGD Slav, Tolush-Geller gambit17029.4%41.8%
D16QGD Slav accepted, Alapin variation26638.7%64.5%
D16QGD Slav, Smyslov variation11937.8%60.9%
D16QGD Slav, Soultanbeieff variation58651.4%52.1%
D16QGD Slav, Steiner variation32038.1%61.9%
D17QGD Slav, Carlsbad variation58140.1%61.4%
D17QGD Slav, Czech defence52548.6%55.7%
D17QGD Slav, Krause attack99241.0%58.4%
D17QGD Slav, Wiesbaden variation80142.3%57.5%
D18QGD Slav, Dutch variation46841.2%58.7%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D19QGD Slav, Dutch variation184341.5%56.9%
D19QGD Slav, Dutch variation, main line32944.4%58.4%
D19QGD Slav, Dutch, Saemisch variation333.3%50.0%
D20QGA, 3.e4398741.0%56.6%
D20QGA, Linares variation11836.4%58.9%
D20Queen's gambit accepted132646.2%55.0%
D21QGA, 3.Nf349942.7%57.6%
D21QGA, Alekhine defense, Borisenko-Furman variation4334.9%45.3%
D21QGA, Ericson variation60.0%33.3%
D22QGA, Alekhine defence54541.8%57.6%
D22QGA, Alekhine defence, Alatortsev variation1457.1%42.9%
D22QGA, Haberditz variation23355.4%56.0%
D23QGA, Mannheim variation52742.5%53.9%
D23Queen's gambit accepted7749.4%51.9%
D24QGA, 4.Nc336638.5%52.3%
D24QGA, Bogolyubov variation23347.6%54.7%
D25QGA, 4.e323339.9%57.3%
D25QGA, Flohr variation12927.1%65.5%
D25QGA, Janowsky-Larsen variation66141.5%58.5%
D25QGA, Smyslov variation11753.0%60.7%
D26QGA, 4...e638144.9%54.2%
D26QGA, classical variation95451.7%53.8%
D26QGA, classical variation, 6.O-O22349.8%57.6%
D26QGA, classical, Furman variation560.0%30.0%
D26QGA, classical, Steinitz variation17849.4%64.0%
D27QGA, classical, 6...a6506852.9%55.0%
D27QGA, classical, Geller variation9453.2%57.4%
D27QGA, classical, Rubinstein variation170148.7%56.7%
D28QGA, classical, 7...b533751.3%55.0%
D28QGA, classical, 7.Qe26950.7%61.6%
D28QGA, classical, Flohr variation10.0%0.0%
D29QGA, classical, 8...Bb738042.4%47.2%
D29QGA, classical, Smyslov variation4753.2%43.6%
D30QGD121147.5%51.4%
D30QGD Slav64146.2%54.9%
D30QGD Slav, Semmering variation4835.4%49.0%
D30QGD, Capablanca variation4533.3%58.9%
D30QGD, Capablanca-Duras variation50044.4%53.0%
D30QGD, Hastings variation89947.7%52.8%
D30QGD, Stonewall variation450.0%75.0%
D30QGD, Vienna variation128353.2%52.2%
D30Queen's gambit declined810945.0%55.3%
D31QGD, 3.Nc3132839.8%54.6%
D31QGD, Alapin variation1723.5%64.7%
D31QGD, Charousek (Petrosian) variation232846.4%54.4%
D31QGD, Janowski variation37842.6%54.6%
D31QGD, semi-Slav157940.2%53.8%
D31QGD, semi-Slav, Abrahams variation18836.2%43.6%
D31QGD, semi-Slav, Junge variation1233.3%33.3%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
D31QGD, semi-Slav, Marshall gambit142742.8%54.9%
D31QGD, semi-Slav, Noteboom variation39338.4%50.8%
D32QGD, Tarrasch defence63345.8%53.9%
D32QGD, Tarrasch defence, 4.cd ed4831.3%44.8%
D32QGD, Tarrasch defence, Marshall gambit1442.9%57.1%
D32QGD, Tarrasch defence, Tarrasch gambit1957.9%44.7%
D32QGD, Tarrasch, von Hennig-Schara gambit13345.1%63.2%
D33QGD, Tarrasch, Folkestone (Swedish) variation25048.4%56.2%
D33QGD, Tarrasch, Prague variation22742.7%54.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system6134.4%56.6%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%25.0%
D33QGD, Tarrasch, Wagner variation5954.2%55.9%
D34QGD, Tarrasch, Bogolyubov variation250.0%25.0%
D34QGD, Tarrasch, Prague variation, 7...Be722644.7%55.1%
D34QGD, Tarrasch, Prague variation, 9.Bg562946.7%58.8%
D34QGD, Tarrasch, Prague variation, Normal position82751.1%56.3%
D34QGD, Tarrasch, Reti variation4454.5%65.9%
D35QGD, 3...Nf614837.8%50.0%
D35QGD, Harrwitz attack28549.8%55.8%
D35QGD, exchange variation47541.9%56.1%
D35QGD, exchange, Saemisch variation42048.3%53.7%
D35QGD, exchange, positional line141441.7%54.3%
D35QGD, exchange, positional line, 5...c6113544.1%56.3%
D36QGD, exchange, positional line, 6.Qc253343.3%55.3%
D37QGD, 4.Nf3786947.2%53.6%
D37QGD, classical variation (5.Bf4)568546.7%55.0%
D38QGD, Ragozin variation644546.9%53.2%
D39QGD, Ragozin, Vienna variation192049.6%51.1%
D40QGD, Semi-Tarrasch defence48342.4%54.6%
D40QGD, Semi-Tarrasch defence, Pillsbury variation9750.5%58.2%
D40QGD, Semi-Tarrasch, Levenfish variation540.0%60.0%
D40QGD, Semi-Tarrasch, symmetrical variation2748.1%53.7%
D41QGD, Semi-Tarrasch with e337047.0%56.8%
D41QGD, Semi-Tarrasch, 5.cd87350.3%56.8%
D41QGD, Semi-Tarrasch, Kmoch variation1560.0%43.3%
D41QGD, Semi-Tarrasch, San Sebastian variation2839.3%76.8%
D42QGD, Semi-Tarrasch, 7.Bd344947.0%54.7%
D43QGD semi-Slav1036142.7%53.1%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D44QGD semi-Slav, 5.Bg5 dc27148.3%49.3%
D44QGD semi-Slav, Botvinnik system (anti-Meran)10934.9%51.4%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D44QGD semi-Slav, anti-Meran gambit98134.6%58.4%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation20635.0%65.5%
D44QGD semi-Slav, anti-Meran, Szabo variation3122.6%37.1%
D45QGD semi-Slav, 5...Nd784340.7%51.4%
D45QGD semi-Slav, 5.e352838.3%57.0%
D45QGD semi-Slav, Rubinstein (anti-Meran) system2133.3%45.2%
D45QGD semi-Slav, Stoltz variation1384744.1%53.3%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)320543.8%54.2%
D45QGD semi-Slav, stonewall defence1442.9%50.0%
D46QGD semi-Slav, 6.Bd35040.0%66.0%
D46QGD semi-Slav, Bogolyubov variation19745.2%56.6%
D46QGD semi-Slav, Chigorin defence48245.9%55.1%
D46QGD semi-Slav, Romih variation19736.0%63.7%
D47QGD semi-Slav, 7.Bc48933.7%58.4%
D47QGD semi-Slav, Meran variation166049.8%53.5%
D47QGD semi-Slav, Meran, Wade variation736440.0%53.4%
D47QGD semi-Slav, neo-Meran (Lundin variation)36751.0%55.2%
D48QGD semi-Slav, Meran244.2%43.8%
D48QGD semi-Slav, Meran, 8...a6156050.1%49.1%
D48QGD semi-Slav, Meran, Pirc variation1650.0%68.8%
D48QGD semi-Slav, Meran, Reynolds' variation84039.2%56.3%
D48QGD semi-Slav, Meran, old main line12835.9%53.1%
D49QGD semi-Slav, Meran, Blumenfeld variation21344.6%53.8%
D49QGD semi-Slav, Meran, Rabinovich variation7830.8%47.4%
D49QGD semi-Slav, Meran, Rellstab attack1735.3%58.8%
D49QGD semi-Slav, Meran, Sozin variation17143.9%47.1%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
D50QGD, 4.Bg551239.5%58.8%
D50QGD, Been-Koomen variation3650.0%47.2%
D50QGD, Canal (Venice) variation1747.1%52.9%
D50QGD, Semi-Tarrasch7852.6%51.9%
D50QGD, Semi-Tarrasch, Krause variation2100.0%50.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1540.0%53.3%
D51QGD5549.1%57.3%
D51QGD, 4.Bg5 Nbd712143.0%53.7%
D51QGD, 5...c624449.6%51.0%
D51QGD, Alekhine variation812.5%56.3%
D51QGD, Capablanca anti-Cambridge Springs variation5145.1%59.8%
D51QGD, Manhattan variation2650.0%55.8%
D51QGD, Rochlin variation1346.2%46.2%
D52QGD25439.8%54.9%
D52QGD, Cambridge Springs defence5147.1%49.0%
D52QGD, Cambridge Springs defence, 7.cd9530.5%55.3%
D52QGD, Cambridge Springs defence, Argentine variation2634.6%44.2%
D52QGD, Cambridge Springs defence, Bogoljubow variation55050.9%55.6%
D52QGD, Cambridge Springs defence, Capablanca variation3935.9%59.0%
D52QGD, Cambridge Springs defence, Rubinstein variation23440.2%56.0%
D52QGD, Cambridge Springs defence, Yugoslav variation55840.0%56.7%
D53QGD, 4.Bg5 Be7133745.9%55.2%
D53QGD, 4.Bg5 Be7, 5.e3 O-O10644.3%52.4%
D53QGD, Lasker variation633.3%66.7%
D54QGD, Anti-neo-orthodox variation15145.7%56.0%
D55QGD, 6.Nf320938.8%57.2%
D55QGD, Neo-orthodox variation1250.0%58.3%
D55QGD, Neo-orthodox variation, 7.Bh423151.9%57.6%
D55QGD, Neo-orthodox variation, 7.Bxf645248.2%52.4%
D55QGD, Petrosian variation41354.0%53.1%
D55QGD, Pillsbury attack250.0%75.0%
D56QGD, Lasker defence61050.3%53.4%
D56QGD, Lasker defence, Teichmann variation13553.3%49.6%
D57QGD, Lasker defence, Bernstein variation3857.9%55.3%
D57QGD, Lasker defence, main line16952.7%55.3%
D58QGD, Tartakower (Makagonov-Bondarevsky) system547447.1%52.1%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd528450.4%46.0%
D59QGD, Tartakower variation15148.3%46.0%
D60QGD, Orthodox defence13435.8%53.7%
D60QGD, Orthodox defence, Botvinnik variation12541.6%52.8%
D60QGD, Orthodox defence, Rauzer variation12047.5%54.6%
D61QGD, Orthodox defence, Rubinstein variation45746.6%53.3%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)26751.3%54.5%
D63QGD, Orthodox defence12946.5%60.5%
D63QGD, Orthodox defence, 7.Rc130843.8%56.3%
D63QGD, Orthodox defence, Capablanca variation540.0%60.0%
D63QGD, Orthodox defence, Pillsbury attack3754.1%62.2%
D63QGD, Orthodox defence, Swiss (Henneberger) variation15044.7%57.0%
D63QGD, Orthodox defence, Swiss, Karlsbad variation37944.9%54.6%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)13551.1%55.2%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation3633.3%61.1%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation2941.4%41.4%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
D65QGD, Orthodox defence, Rubinstein attack, main line3650.0%58.3%
D66QGD, Orthodox defence, Bd3 line35748.2%56.9%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation2937.9%63.8%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
D67QGD, Orthodox defence, Bd3 line, 11.O-O6835.3%66.2%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation6755.2%60.4%
D68QGD, Orthodox defence, classical variation8450.0%57.1%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)5156.9%57.8%
D69QGD, Orthodox defence, classical, 13.de1752.9%55.9%
D70Neo-Gruenfeld (Kemeri) defence28639.2%53.1%
D70Neo-Gruenfeld defence39138.1%54.9%
D71Neo-Gruenfeld, 5.cd41945.8%56.6%
D72Neo-Gruenfeld, 5.cd, main line31535.2%61.1%
D73Neo-Gruenfeld, 5.Nf3112451.2%55.8%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O33447.9%56.6%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc326147.1%58.0%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc3938.5%65.4%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb667046.9%57.2%
D77Neo-Gruenfeld, 6.O-O97048.0%55.1%
D78Neo-Gruenfeld, 6.O-O c6113445.1%52.5%
D79Neo-Gruenfeld, 6.O-O, main line73451.0%53.7%
D80Gruenfeld defence163646.5%53.7%
D80Gruenfeld, Lundin variation10.0%0.0%
D80Gruenfeld, Stockholm variation110344.8%53.8%
D81Gruenfeld, Russian variation78342.0%58.8%
D82Gruenfeld, 4.Bf479943.8%53.8%
D83Gruenfeld, Gruenfeld gambit11846.6%55.5%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation3860.5%59.2%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation54542.4%57.2%
D84Gruenfeld, Gruenfeld gambit accepted17348.6%58.4%
D85Gruenfeld, exchange variation438648.5%55.9%
D85Gruenfeld, modern exchange variation417947.9%56.3%
D86Gruenfeld, exchange, Larsen variation1136.4%54.5%
D86Gruenfeld, exchange, Simagin's improved variation22039.1%56.4%
D86Gruenfeld, exchange, Simagin's lesser variation9443.6%60.1%
D86Gruenfeld, exchange, classical variation144446.7%55.9%
D87Gruenfeld, exchange, Seville variation9353.8%61.3%
D87Gruenfeld, exchange, Spassky variation69244.7%56.3%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd29142.3%61.0%
D89Gruenfeld, Spassky variation, main line, 13.Bd37540.0%48.0%
D89Gruenfeld, exchange, Sokolsky variation1241.7%45.8%
D90Gruenfeld, Flohr variation49541.0%52.6%
D90Gruenfeld, Schlechter variation9636.5%53.6%
D90Gruenfeld, Three knights variation103349.4%53.7%
D91Gruenfeld, 5.Bg5112840.9%48.5%
D92Gruenfeld, 5.Bf499946.1%56.0%
D93Gruenfeld with Bf4 e341649.3%55.6%
D94Gruenfeld with e3 Bd32540.0%48.0%
D94Gruenfeld, 5.e352544.4%56.3%
D94Gruenfeld, Flohr defence2352.2%60.9%
D94Gruenfeld, Makogonov variation14340.6%51.0%
D94Gruenfeld, Opovcensky variation23744.3%52.1%
D94Gruenfeld, Smyslov defence22948.0%55.0%
D95Gruenfeld with e3 & Qb34839.6%59.4%
D95Gruenfeld, Botvinnik variation14644.5%50.3%
D96Gruenfeld, Russian variation53341.8%51.9%
D97Gruenfeld, Russian variation with e49732.0%61.3%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation215746.2%51.7%
D97Gruenfeld, Russian, Byrne (Simagin) variation21440.7%63.3%
D97Gruenfeld, Russian, Levenfish variation2934.5%62.1%
D97Gruenfeld, Russian, Prins variation53946.0%56.4%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation27845.0%58.1%
D98Gruenfeld, Russian, Keres variation2250.0%47.7%
D98Gruenfeld, Russian, Smyslov variation39640.2%59.7%
D99Gruenfeld defence, Smyslov, Yugoslav variation2722.2%51.9%
D99Gruenfeld defence, Smyslov, main line26142.1%59.0%
E00Catalan opening488742.4%55.1%
E00Neo-Indian (Seirawan) attack29432.0%50.0%
E00Queen's pawn game65238.7%56.4%
E01Catalan, closed95848.5%54.6%
E02Catalan, open, 5.Qa424346.5%58.6%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc417449.4%46.6%
E03Catalan, open, Alekhine variation5940.7%49.2%
E04Catalan, open, 5.Nf3613645.2%53.8%
E05Catalan, open, classical line24752.6%57.9%
E06Catalan, closed, 5.Nf3429850.9%53.8%
E07Catalan, closed, 6...Nbd714743.5%52.4%
E07Catalan, closed, Botvinnik variation14940.9%50.7%
E08Catalan, closed, 7.Qc215135.8%61.6%
E08Catalan, closed, Qc2 & b337841.3%52.1%
E08Catalan, closed, Spassky gambit1323.1%50.0%
E08Catalan, closed, Zagoryansky variation1060.0%50.0%
E09Catalan, closed, Sokolsky variation520.0%50.0%
E09Catalan, closed, main line33337.2%59.8%
E10Blumenfeld counter-gambit42342.3%55.7%
E10Blumenfeld counter-gambit accepted17040.0%55.9%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation27836.0%56.8%
E10Blumenfeld counter-gambit, Spielmann variation18434.8%58.2%
E10Doery defence3638.9%58.3%
E10Dzindzikhashvili defence24243.0%52.5%
E10Queen's pawn game617245.1%55.2%
E11Bogo-Indian defence233741.4%55.2%
E11Bogo-Indian defence, Gruenfeld variation300540.8%56.3%
E11Bogo-Indian defence, Monticelli trap2343.5%39.1%
E11Bogo-Indian defence, Nimzovich variation202541.7%57.5%
E12Queen's Indian defence83141.5%53.5%
E12Queen's Indian, 4.Nc3603740.9%53.2%
E12Queen's Indian, 4.Nc3, Botvinnik variation4628.3%48.9%
E12Queen's Indian, Miles variation191543.4%53.4%
E12Queen's Indian, Petrosian system884143.9%54.4%
E13Queen's Indian, 4.Nc3, main line32436.1%53.2%
E14Queen's Indian, 4.e3226040.4%52.7%
E14Queen's Indian, Averbakh variation650.0%41.7%
E15Queen's Indian, 4.g3374748.4%55.2%
E15Queen's Indian, 4.g3 Bb741542.2%53.9%
E15Queen's Indian, Buerger variation6735.8%62.7%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1785342.0%56.5%
E15Queen's Indian, Rubinstein variation19735.0%60.2%
E16Queen's Indian, Capablanca variation66943.8%57.2%
E16Queen's Indian, Riumin variation31738.5%59.0%
E16Queen's Indian, Yates variation53642.7%57.7%
E17Queen's Indian, 5.Bg2 Be75841.4%46.6%
E17Queen's Indian, Euwe variation10553.3%54.3%
E17Queen's Indian, Opovcensky variation95140.6%55.5%
E17Queen's Indian, anti-Queen's Indian system54742.6%54.2%
E17Queen's Indian, old main line, 6.O-O134543.9%57.9%
E18Queen's Indian, old main line, 7.Nc3216644.0%57.0%
E19Queen's Indian, old main line, 9.Qxc3159647.4%58.1%
E20Nimzo-Indian defence29647.0%53.2%
E20Nimzo-Indian, Kmoch variation137438.1%53.7%
E20Nimzo-Indian, Mikenas attack850.0%62.5%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system71845.4%54.9%
E21Nimzo-Indian, three knights variation377642.5%54.5%
E21Nimzo-Indian, three knights, Euwe variation862.5%56.3%
E21Nimzo-Indian, three knights, Korchnoi variation1030.0%35.0%
E22Nimzo-Indian, Spielmann variation71739.1%53.3%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc612344.7%46.7%
E23Nimzo-Indian, Spielmann, Karlsbad variation4740.4%45.7%
E23Nimzo-Indian, Spielmann, San Remo variation2941.4%51.7%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
E24Nimzo-Indian, Saemisch variation49838.6%53.0%
E24Nimzo-Indian, Saemisch, Botvinnik variation11339.8%43.8%
E25Nimzo-Indian, Saemisch variation22342.2%55.2%
E25Nimzo-Indian, Saemisch, Keres variation35847.8%54.6%
E25Nimzo-Indian, Saemisch, Romanovsky variation16159.0%52.5%
E26Nimzo-Indian, Saemisch variation28937.0%55.9%
E26Nimzo-Indian, Saemisch, O'Kelly variation5839.7%50.9%
E27Nimzo-Indian, Saemisch variation12344.7%50.0%
E28Nimzo-Indian, Saemisch variation36831.8%52.6%
E29Nimzo-Indian, Saemisch, Capablanca variation3842.1%42.1%
E29Nimzo-Indian, Saemisch, main line18936.5%56.9%
E30Nimzo-Indian, Leningrad variation102334.2%50.0%
E30Nimzo-Indian, Leningrad, ...b5 gambit8433.3%47.6%
E31Nimzo-Indian, Leningrad, main line43334.6%49.4%
E32Nimzo-Indian, classical variation832343.7%53.9%
E32Nimzo-Indian, classical, Adorjan gambit14346.9%53.5%
E33Nimzo-Indian, classical, 4...Nc629335.8%56.1%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation48740.0%58.8%
E34Nimzo-Indian, classical, Noa variation112952.6%53.7%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed90549.0%51.1%
E36Nimzo-Indian, classical, Botvinnik variation1643.8%59.4%
E36Nimzo-Indian, classical, Noa variation, 5.a351145.4%53.6%
E36Nimzo-Indian, classical, Noa variation, main line10.0%0.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc258948.6%60.4%
E37Nimzo-Indian, classical, San Remo variation1127.3%59.1%
E38Nimzo-Indian, classical, 4...c582639.6%59.5%
E39Nimzo-Indian, classical, Pirc variation121941.3%55.0%
E40Nimzo-Indian, 4.e331935.1%55.8%
E40Nimzo-Indian, 4.e3, Taimanov variation24335.0%60.3%
E41Nimzo-Indian, 4.e3 c5111044.6%54.8%
E41Nimzo-Indian, e3, Huebner variation55534.4%50.9%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)94648.7%54.6%
E43Nimzo-Indian, Fischer variation82036.5%53.2%
E44Nimzo-Indian, Fischer variation, 5.Ne276439.4%55.3%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation55841.4%54.4%
E46Nimzo-Indian, 4.e3 O-O13640.4%51.8%
E46Nimzo-Indian, Reshevsky variation128844.9%51.2%
E46Nimzo-Indian, Simagin variation22945.0%48.7%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd392746.3%52.0%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d583444.1%52.3%
E49Nimzo-Indian, 4.e3, Botvinnik system31745.1%56.0%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d532244.4%49.5%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d539650.0%52.3%
E51Nimzo-Indian, 4.e3, Ragozin variation4835.4%67.7%
E52Nimzo-Indian, 4.e3, main line with ...b673641.3%50.8%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd711446.5%53.1%
E53Nimzo-Indian, 4.e3, Keres variation16244.4%50.6%
E53Nimzo-Indian, 4.e3, main line with ...c556944.8%55.3%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc142448.9%55.6%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation5154.9%62.7%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation214248.9%55.3%
E56Nimzo-Indian, 4.e3, main line with 7...Nc658251.7%55.6%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd1338.5%57.7%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3165045.0%52.8%
E59Nimzo-Indian, 4.e3, main line80543.6%53.9%
E60King's Indian defence154033.8%55.3%
E60King's Indian, 3.Nf3421140.9%57.2%
E60King's Indian, 3.g3269942.5%55.3%
E60King's Indian, 3.g3, counterthrust variation1729.4%32.4%
E60King's Indian, Anti-Gruenfeld16838.7%52.1%
E60King's Indian, Danube gambit1241.7%54.2%
E60Queen's pawn, Mengarini attack3935.9%61.5%
E61King's Indian defence, 3.Nc3171036.1%55.7%
E61King's Indian, Smyslov system12636.5%52.4%
E62King's Indian, fianchetto variation10040.0%54.0%
E62King's Indian, fianchetto with ...Nc631633.5%55.7%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation65833.4%60.0%
E62King's Indian, fianchetto, Larsen system36741.4%60.8%
E62King's Indian, fianchetto, Simagin variation10131.7%64.4%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation42536.7%57.2%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation39636.6%59.7%
E63King's Indian, fianchetto, Panno variation254038.0%56.9%
E64King's Indian, fianchetto, Yugoslav system16242.6%58.3%
E65King's Indian, fianchetto, Yugoslav, 7.O-O32446.6%53.5%
E66King's Indian, fianchetto, Yugoslav Panno41533.0%57.7%
E67King's Indian, fianchetto with ...Nd714540.0%58.6%
E67King's Indian, fianchetto, classical variation68042.2%55.2%
E68King's Indian, fianchetto, classical variation, 8.e4160040.4%59.7%
E69King's Indian, fianchetto, classical main line57833.7%62.7%
E70King's Indian, 4.e4144833.2%58.5%
E70King's Indian, Kramer system54231.5%57.5%
E70King's Indian, accelerated Averbakh system20535.6%52.9%
E71King's Indian, Makagonov system (5.h3)112435.7%59.6%
E72King's Indian with e4 & g315934.6%56.3%
E72King's Indian, Pomar system6737.3%57.5%
E73King's Indian, 5.Be25928.8%63.6%
E73King's Indian, Averbakh system141034.5%56.1%
E73King's Indian, Semi-Averbakh system13937.4%58.3%
E74King's Indian, Averbakh, 6...c555939.2%57.7%
E75King's Indian, Averbakh, main line26733.7%57.3%
E76King's Indian, Four pawns attack37338.3%58.3%
E76King's Indian, Four pawns attack, dynamic line34336.2%52.2%
E77King's Indian, Four pawns attack22132.1%59.0%
E77King's Indian, Four pawns attack, 6.Be24940.8%44.9%
E77King's Indian, Four pawns attack, Florentine gambit1838.9%41.7%
E78King's Indian, Four pawns attack, with Be2 and Nf311340.7%57.5%
E79King's Indian, Four pawns attack, main line5757.9%57.0%
E80King's Indian, Saemisch variation71134.0%58.8%
E81King's Indian, Saemisch, 5...O-O305035.2%55.1%
E81King's Indian, Saemisch, Byrne variation10839.8%57.9%
E82King's Indian, Saemisch, double fianchetto variation19636.7%58.2%
E83King's Indian, Saemisch, 6...Nc619832.3%53.5%
E83King's Indian, Saemisch, Panno formation47337.2%56.9%
E83King's Indian, Saemisch, Ruban variation2729.6%51.9%
E84King's Indian, Saemisch, Panno main line74136.7%54.4%
E85King's Indian, Saemisch, orthodox variation21339.4%55.4%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c664832.9%53.3%
E87King's Indian, Saemisch, orthodox, 7.d550727.0%57.1%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
E88King's Indian, Saemisch, orthodox, 7.d5 c649433.4%58.0%
E89King's Indian, Saemisch, orthodox main line8831.8%55.7%
E90King's Indian, 5.Nf3133333.8%57.1%
E90King's Indian, Larsen variation14634.9%59.2%
E90King's Indian, Zinnowitz variation7540.0%54.7%
E91King's Indian, 6.Be285834.3%63.4%
E91King's Indian, Kazakh variation37237.9%57.9%
E92King's Indian, Andersson variation42555.8%48.4%
E92King's Indian, Gligoric-Taimanov system179335.8%58.6%
E92King's Indian, Petrosian system15227.0%54.3%
E92King's Indian, Petrosian system, Stein variation76534.1%53.9%
E92King's Indian, classical variation3930.8%48.7%
E93King's Indian, Petrosian system, main line14233.8%53.5%
E94King's Indian, orthodox variation125739.6%55.4%
E94King's Indian, orthodox, 7...Nbd7111635.4%60.0%
E94King's Indian, orthodox, Donner variation30637.3%58.8%
E95King's Indian, orthodox, 7...Nbd7, 8.Re156539.1%56.0%
E96King's Indian, orthodox, 7...Nbd7, main line10138.6%58.9%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)491434.3%56.0%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack141235.6%58.6%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1101627.3%61.5%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack15321.6%61.8%
E99King's Indian, orthodox, Aronin-Taimanov, main line7929.1%65.2%

Created in 2005-2013 by CCRL team
Last games added on April 18, 2021