CCRL Blitz
Downloads and Statistics
September 19, 2020
Testing summary:
Total: 2'370'030 games
played by 2'800 programs

White wins: 913'140 (38.5%)
Black wins: 734'658 (31.0%)
Draws: 722'232 (30.5%)
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 attack1833.3%38.9%
A00Anderssen's opening71622.5%48.0%
A00Anti-Borg (Desprez) opening2321.7%58.7%
A00Battambang opening933.3%27.8%
A00Benko's opening1977630.9%50.8%
A00Benko's opening, reversed Alekhine20031.0%50.0%
A00Clemenz (Mead's, Basman's or de Klerk's) opening552422.8%50.0%
A00Dunst (Sleipner, Heinrichsen) opening478030.3%50.5%
A00Durkin's attack7017.1%52.9%
A00Gedult's opening3917.9%50.0%
A00Global opening1618.8%71.9%
A00Grob's attack28921.8%45.2%
A00Grob, Fritz gambit3910.3%20.5%
A00Lasker simul special14027.9%46.8%
A00Mieses opening75819.9%51.1%
A00Novosibirsk opening24928.9%52.2%
A00Polish (Sokolsky) opening217230.7%50.1%
A00Polish, Outflank variation38128.6%49.0%
A00Polish, Tuebingen variation6920.3%50.7%
A00Saragossa opening108121.1%51.5%
A00Van't Kruijs opening145227.7%52.1%
A00Ware (Meadow Hay) opening22921.0%46.3%
A01Nimzovich-Larsen attack276430.8%49.5%
A01Nimzovich-Larsen attack, Dutch variation29925.4%52.2%
A01Nimzovich-Larsen attack, English variation138229.8%50.9%
A01Nimzovich-Larsen attack, Indian variation197930.5%50.7%
A01Nimzovich-Larsen attack, Polish variation3036.7%55.0%
A01Nimzovich-Larsen attack, classical variation409129.4%48.3%
A01Nimzovich-Larsen attack, modern variation529030.9%50.2%
A01Nimzovich-Larsen attack, symmetrical variation147632.8%50.9%
A02Bird's opening673429.6%49.8%
A02Bird's opening, Swiss gambit1414.3%64.3%
A02Bird, From gambit21628.2%50.7%
A02Bird, From gambit, Lasker variation6319.0%60.3%
A02Bird, From gambit, Lipke variation520.0%30.0%
A02Bird, Hobbs gambit633.3%66.7%
A03Bird's opening569628.0%48.6%
A03Bird's opening, Lasker variation7728.6%48.1%
A03Bird's opening, Williams gambit7627.6%59.9%
A03Mujannah opening70.0%42.9%
A04Reti opening2532430.2%53.7%
A04Reti v Dutch383327.8%56.4%
A04Reti, Herrstroem gambit250.0%75.0%
A04Reti, Lisitsin gambit deferred13824.6%51.4%
A04Reti, Pirc-Lisitsin gambit37725.7%51.6%
A04Reti, Wade defence540.0%80.0%
A05Reti opening1494530.2%52.3%
A05Reti, King's Indian attack378031.6%54.8%
A05Reti, King's Indian attack, Reti-Smyslov variation23127.3%49.1%
A05Reti, King's Indian attack, Spassky's variation132629.7%53.5%
A06Reti opening537432.2%52.8%
A06Reti, Nimzovich-Larsen attack526831.7%51.0%
A06Reti, old Indian attack66529.9%52.4%
A06Santasiere's folly21536.3%48.8%
A06Tennison (Lemberg, Zukertort) gambit3815.8%55.3%
A07Reti, King's Indian attack416434.3%52.7%
A07Reti, King's Indian attack (Barcza system)1474331.6%52.7%
A07Reti, King's Indian attack (with ...c5)52927.8%49.4%
A07Reti, King's Indian attack, Keres variation103431.3%52.5%
A07Reti, King's Indian attack, Pachman system26823.9%51.9%
A07Reti, King's Indian attack, Yugoslav variation613332.2%53.8%
A08Reti, King's Indian attack144830.5%53.7%
A08Reti, King's Indian attack, French variation146931.2%51.2%
A09Reti accepted220829.5%52.1%
A09Reti accepted, Keres variation18328.4%58.5%
A09Reti opening143828.4%53.9%
A09Reti, advance variation284826.6%49.0%
A10English opening776726.6%54.2%
A10English, Adorjan defence74134.1%49.9%
A10English, Anglo-Dutch defense232126.0%55.1%
A10English, Jaenisch gambit1723.5%70.6%
A11English, Caro-Kann defensive system272930.3%54.0%
A12English, Bled variation7830.8%56.4%
A12English, Capablanca's variation9630.2%51.6%
A12English, Caro-Kann defensive system35526.8%56.2%
A12English, Caro-Kann defensive system, Bogolyubov variation21427.6%48.8%
A12English, London defensive system91130.2%53.4%
A12English, New York (London) defensive system11724.8%46.6%
A12English, Torre defensive system92332.0%52.7%
A13English opening764628.4%52.7%
A13English opening, Agincourt variation404830.2%52.2%
A13English, Kurajica defence23427.4%54.7%
A13English, Neo-Catalan378433.0%54.0%
A13English, Neo-Catalan accepted293634.1%55.0%
A13English, Romanishin gambit146729.4%55.2%
A13English, Wimpey system53531.2%49.6%
A14English, Neo-Catalan declined160035.0%53.5%
A14English, Symmetrical, Keres defence95236.3%55.4%
A15English opening1721133.2%54.2%
A15English, 1...Nf6 (Anglo-Indian defense)245128.1%52.6%
A16English opening169629.0%53.4%
A16English, Anglo-Gruenfeld defense46630.5%51.9%
A16English, Anglo-Gruenfeld defense, Korchnoi variation2040.0%65.0%
A16English, Anglo-Gruenfeld, Czech defense14831.1%64.2%
A16English, Anglo-Gruenfeld, Smyslov defense9937.4%58.1%
A17English opening47532.4%51.8%
A17English, Nimzo-English opening334331.8%54.4%
A17English, Queens Indian formation33526.6%53.3%
A17English, Queens Indian, Romanishin variation6131.1%50.0%
A18English, Mikenas-Carls variation16226.5%57.1%
A18English, Mikenas-Carls, Flohr variation24332.1%56.0%
A18English, Mikenas-Carls, Kevitz variation5523.6%53.6%
A19English, Mikenas-Carls, Sicilian variation40227.6%52.9%
A20English opening1599429.2%52.4%
A20English, Nimzovich variation44527.0%52.4%
A20English, Nimzovich, Flohr variation82529.3%47.0%
A21English opening418828.7%54.1%
A21English, Keres variation2634.6%44.2%
A21English, Kramnik-Shirov counterattack491129.6%52.0%
A21English, Smyslov defence8529.4%55.9%
A21English, Troeger defence21730.4%54.4%
A22English opening158628.8%51.0%
A22English, Bellon gambit5722.8%46.5%
A22English, Bremen, Smyslov system333228.8%48.9%
A22English, Bremen, reverse dragon201533.5%52.7%
A22English, Carls' Bremen system102226.3%55.3%
A23English, Bremen system, Keres variation54233.6%50.2%
A24English, Bremen system with ...g610326.2%58.7%
A25English, Sicilian reversed158427.6%52.2%
A25English, closed system195627.0%53.3%
A25English, closed system (without ...d6)12623.0%48.8%
A25English, closed, 5.Rb1122426.9%51.8%
A25English, closed, 5.Rb1 Taimanov variation1020.0%30.0%
A25English, closed, Hort variation5030.0%51.0%
A25English, closed, Taimanov variation3633.3%50.0%
A26English, Botvinnik system45025.1%49.0%
A26English, closed system43625.0%50.8%
A27English, three knights system102426.7%52.3%
A28English, Bradley Beach variation22729.1%44.9%
A28English, Nenarokov variation10830.6%44.9%
A28English, four knights system88427.5%53.0%
A28English, four knights, 4.e3215231.0%52.1%
A28English, four knights, Capablanca variation75632.7%51.4%
A28English, four knights, Marini variation181734.8%53.5%
A28English, four knights, Nimzovich variation488136.4%53.1%
A28English, four knights, Romanishin variation141335.1%49.8%
A28English, four knights, Stean variation17924.6%55.9%
A29English, four knights, kingside fianchetto2589633.7%51.5%
A30English, symmetrical variation1178831.0%54.1%
A30English, symmetrical, hedgehog system1212234.0%56.0%
A30English, symmetrical, hedgehog, flexible formation78443.5%55.8%
A31English, symmetrical, Benoni formation281828.8%53.9%
A32English, symmetrical variation175232.2%51.1%
A33English, symmetrical variation902737.8%52.2%
A33English, symmetrical, Geller variation610935.0%53.3%
A34English, symmetrical variation245827.9%51.2%
A34English, symmetrical, Rubinstein system42933.8%52.8%
A34English, symmetrical, three knights system314635.3%52.1%
A35English, symmetrical variation58529.6%56.3%
A35English, symmetrical, four knights system654632.0%53.5%
A36English, symmetrical variation19826.8%49.2%
A36English, symmetrical, Botvinnik system130325.2%54.1%
A36English, symmetrical, Botvinnik system reversed17928.5%49.4%
A36English, ultra-symmetrical variation592325.6%49.9%
A37English, symmetrical variation111429.8%53.1%
A37English, symmetrical, Botvinnik system reversed82327.0%50.9%
A38English, symmetrical variation97130.3%53.3%
A38English, symmetrical, main line with b31136.4%36.4%
A38English, symmetrical, main line with d319134.6%51.8%
A39English, symmetrical, main line with d4164638.2%55.4%
A40Beefeater defence3823.7%61.8%
A40Modern defence417127.2%55.4%
A40Polish defence42026.4%57.3%
A40Queen's pawn810928.3%53.5%
A40Queen's pawn, Charlick (Englund) gambit9334.4%65.6%
A40Queen's pawn, English defence115227.1%56.7%
A40Queen's pawn, Franco-Indian (Keres) defence755627.5%55.6%
A40Queen's pawn, Keres defence685627.8%56.0%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence161529.1%57.2%
A41Modern defence18629.6%56.7%
A41Old Indian defence747725.3%51.4%
A41Old Indian, Tartakower (Wade) variation545624.8%58.9%
A41Queen's Pawn687525.1%55.6%
A41Robatsch defence, Rossolimo variation23726.2%54.4%
A42Modern defence, Averbakh system204128.1%55.3%
A42Modern defence, Averbakh system, Kotov variation156123.3%57.5%
A42Modern defence, Averbakh system, Randspringer variation825.0%25.0%
A42Pterodactyl defence112827.4%61.7%
A43Hawk (Habichd) defence425.0%37.5%
A43Old Benoni defence432926.3%56.0%
A43Old Benoni, Franco-Benoni defence27426.6%62.6%
A43Old Benoni, Mujannah formation35523.9%59.6%
A43Old Benoni, Schmid's system4228.6%54.8%
A43Woozle defence6323.8%51.6%
A44Old Benoni defence15123.2%68.5%
A44Semi-Benoni (`blockade variation')248720.8%62.4%
A45Blackmar-Diemer gambit22728.6%54.8%
A45Canard opening3122.6%53.2%
A45Paleface attack19619.9%41.6%
A45Queen's pawn game863627.8%51.6%
A45Queen's pawn, Bronstein gambit12720.5%42.5%
A45Trompovsky attack (Ruth, Opovcensky opening)1426326.0%51.3%
A46Doery defence250.0%25.0%
A46Queen's pawn game934929.5%53.8%
A46Queen's pawn, Torre attack229428.9%51.4%
A46Queen's pawn, Torre attack, Wagner gambit3826.3%39.5%
A46Queen's pawn, Yusupov-Rubinstein system173932.4%51.4%
A47Queen's Indian defence131427.7%52.8%
A47Queen's Indian, Marienbad system17829.2%48.3%
A47Queen's Indian, Marienbad system, Berg variation922.2%55.6%
A48King's Indian, East Indian defence238030.4%53.4%
A48King's Indian, London system154729.7%52.0%
A48King's Indian, Torre attack247130.2%50.5%
A49King's Indian, fianchetto without c4303829.8%53.8%
A50Kevitz-Trajkovich defence165827.5%55.2%
A50Queen's Indian accelerated60628.7%57.8%
A50Queen's pawn game312932.2%55.7%
A51Budapest defence declined12128.1%49.6%
A51Budapest, Fajarowicz variation22831.1%58.1%
A51Budapest, Fajarowicz, Steiner variation2540.0%52.0%
A52Budapest defence13528.9%52.2%
A52Budapest, Adler variation121731.4%57.8%
A52Budapest, Alekhine variation8121.0%51.2%
A52Budapest, Alekhine, Abonyi variation5726.3%57.0%
A52Budapest, Rubinstein variation127636.1%58.4%
A53Old Indian defence225329.7%54.9%
A53Old Indian, Janowski variation142921.2%56.7%
A54Old Indian, Dus-Khotimirsky variation224.5%65.9%
A54Old Indian, Ukrainian variation28228.4%53.2%
A54Old Indian, Ukrainian variation, 4.Nf339527.6%53.8%
A55Old Indian, main line166927.0%61.5%
A56Benoni defence227126.8%58.3%
A56Benoni defence, Hromodka system120621.8%58.4%
A56Czech Benoni defence96524.9%62.2%
A56Czech Benoni, King's Indian system75319.4%60.0%
A56Vulture defence30.0%33.3%
A57Benko gambit195525.6%54.9%
A57Benko gambit half accepted153029.3%58.4%
A57Benko gambit, Nescafe Frappe attack120.0%33.3%
A57Benko gambit, Zaitsev system9129.7%52.2%
A58Benko gambit accepted150131.5%55.3%
A58Benko gambit, Nd2 variation2123.8%50.0%
A58Benko gambit, fianchetto variation40930.3%55.5%
A59Benko gambit14342.0%63.6%
A59Benko gambit, 7.e41729.4%67.6%
A59Benko gambit, Ne2 variation2733.3%57.4%
A59Benko gambit, main line129035.1%64.0%
A60Benoni defence33427.8%53.1%
A61Benoni defence76625.5%58.3%
A61Benoni, Nimzovich (knight's tour) variation85125.9%57.3%
A61Benoni, Uhlmann variation11229.5%51.3%
A61Benoni, fianchetto variation7825.6%56.4%
A62Benoni, fianchetto variation262925.8%55.3%
A63Benoni, fianchetto, 9...Nbd720228.2%58.7%
A64Benoni, fianchetto, 11...Re821726.7%51.2%
A65Benoni, 6.e452525.9%60.4%
A66Benoni, Mikenas variation540.0%60.0%
A66Benoni, pawn storm variation1442.9%57.1%
A67Benoni, Taimanov variation92019.7%55.9%
A68Benoni, four pawns attack166.3%40.6%
A69Benoni, four pawns attack, main line10132.7%42.1%
A70Benoni, classical with e4 and Nf3252325.8%59.9%
A70Benoni, classical without 9.O-O1540.0%73.3%
A71Benoni, classical, 8.Bg513925.9%54.0%
A72Benoni, classical without 9.O-O14429.9%59.4%
A73Benoni, classical, 9.O-O38825.0%53.5%
A74Benoni, classical, 9...a6, 10.a43534.3%54.3%
A75Benoni, classical with ...a6 and 10...Bg425627.7%54.1%
A76Benoni, classical, 9...Re815215.8%58.6%
A77Benoni, classical, 9...Re8, 10.Nd246423.7%57.5%
A78Benoni, classical with ...Re8 and ...Na69532.6%56.3%
A79Benoni, classical, 11.f325120.3%66.7%
A80Dutch1394526.1%54.2%
A80Dutch, 2.Bg5 variation423523.2%54.0%
A80Dutch, Korchnoi attack23028.7%53.9%
A80Dutch, Krejcik gambit46228.1%46.1%
A80Dutch, Manhattan (Alapin, Ulvestad) variation22826.3%50.0%
A80Dutch, Spielmann gambit1323.1%34.6%
A80Dutch, Von Pretzel gambit2020.0%50.0%
A81Dutch defence985529.1%55.7%
A81Dutch defence, Blackburne variation11737.6%62.4%
A81Dutch, Leningrad, Karlsbad variation1729.4%61.8%
A82Dutch, Balogh defence2326.1%47.8%
A82Dutch, Staunton gambit20930.1%40.9%
A82Dutch, Staunton gambit, Tartakower variation2218.2%50.0%
A83Dutch, Staunton gambit, Alekhine variation1931.6%63.2%
A83Dutch, Staunton gambit, Chigorin variation7133.8%63.4%
A83Dutch, Staunton gambit, Lasker variation1323.1%50.0%
A83Dutch, Staunton gambit, Nimzovich variation714.3%50.0%
A83Dutch, Staunton gambit, Staunton's line28027.5%47.0%
A84Dutch defence224327.2%55.9%
A84Dutch defence, Rubinstein variation91829.1%55.3%
A84Dutch, Staunton gambit deferred2035.0%42.5%
A85Dutch with c4 & Nc3101030.5%55.3%
A86Dutch with c4 & g330227.8%61.3%
A86Dutch, Hort-Antoshin system616.7%75.0%
A86Dutch, Leningrad variation25230.6%58.5%
A87Dutch, Leningrad, main variation108127.8%59.9%
A88Dutch, Leningrad, main variation with c6302130.1%56.2%
A89Dutch, Leningrad, main variation with Nc6233326.7%58.0%
A90Dutch defence291627.6%55.5%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation55227.2%61.6%
A90Dutch-Indian, Alekhine variation13231.1%51.9%
A91Dutch defence25432.7%54.5%
A92Dutch defence15030.0%58.3%
A92Dutch defence, Alekhine variation12830.5%57.4%
A92Dutch, stonewall variation38528.1%57.9%
A92Dutch, stonewall with Nc310230.4%59.3%
A93Dutch, stonewall, Botwinnik variation28128.5%59.4%
A94Dutch, stonewall with Ba319035.8%54.2%
A95Dutch, stonewall with Nc350727.0%54.7%
A95Dutch, stonewall: Chekhover variation5036.0%56.0%
A96Dutch, classical variation59431.3%61.3%
A97Dutch, Ilyin-Genevsky variation5930.5%64.4%
A97Dutch, Ilyin-Genevsky, Winter variation19534.9%64.1%
A98Dutch, Ilyin-Genevsky variation with Qc219726.4%60.4%
A99Dutch, Ilyin-Genevsky variation with b352224.9%59.0%
B00Barnes defence2025.0%62.5%
B00Carr's defence6323.8%54.8%
B00Corn stalk defence1338.5%80.8%
B00Fred147.1%67.9%
B00Guatemala defence10.0%100.0%
B00KP, Colorado counter6020.0%50.0%
B00KP, Nimzovich defence428125.3%57.4%
B00KP, Nimzovich defence, Bogolyubov variation52923.4%58.2%
B00KP, Nimzovich defence, Marshall gambit616.7%41.7%
B00King's pawn opening515927.5%53.8%
B00Lemming defence250.0%75.0%
B00Owen defence103727.2%56.4%
B00Reversed Grob (Borg/Basman defence/macho Grob)23923.4%54.0%
B00St. George (Baker) defence20522.0%53.4%
B01Scandinavian (centre counter) defence958327.5%59.6%
B01Scandinavian defence276330.4%57.2%
B01Scandinavian defence, Gruenfeld variation1942.1%57.9%
B01Scandinavian defence, Lasker variation16227.2%64.2%
B01Scandinavian gambit23130.7%47.8%
B01Scandinavian, Anderssen counter-attack333.3%83.3%
B01Scandinavian, Anderssen counter-attack, Goteborg system50.0%100.0%
B01Scandinavian, Icelandic gambit11129.7%53.6%
B01Scandinavian, Kiel variation1225.0%62.5%
B01Scandinavian, Marshall variation150329.3%59.4%
B01Scandinavian, Mieses-Kotrvc gambit4117.1%57.3%
B01Scandinavian, Pytel-Wade variation546930.6%59.6%
B01Scandinavian, Richter variation2828.6%60.7%
B02Alekhine's defence92533.0%54.9%
B02Alekhine's defence, Brooklyn defence11024.5%62.3%
B02Alekhine's defence, Kmoch variation1323.1%42.3%
B02Alekhine's defence, Krejcik variation4231.0%36.9%
B02Alekhine's defence, Maroczy variation46624.0%48.7%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation2924.1%63.8%
B02Alekhine's defence, Saemisch attack52725.0%56.5%
B02Alekhine's defence, Scandinavian variation74827.5%55.7%
B02Alekhine's defence, Spielmann variation3234.4%51.6%
B02Alekhine's defence, Steiner variation2516.0%48.0%
B02Alekhine's defence, Two pawns' (Lasker's) attack19540.0%49.7%
B02Alekhine's defence, Two pawns' attack, Mikenas variation1020.0%60.0%
B02Alekhine's defence, Welling variation7122.5%49.3%
B03Alekhine's defence96326.1%54.4%
B03Alekhine's defence, Balogh variation8724.1%55.7%
B03Alekhine's defence, O'Sullivan gambit166.3%59.4%
B03Alekhine's defence, exchange variation130029.7%58.2%
B03Alekhine's defence, exchange, Karpov variation757.1%42.9%
B03Alekhine's defence, four pawns attack10333.0%59.2%
B03Alekhine's defence, four pawns attack, 6...Nc627421.2%49.6%
B03Alekhine's defence, four pawns attack, 7.Be335428.0%64.5%
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 variation520.0%70.0%
B03Alekhine's defence, four pawns attack, Trifunovic variation8025.0%65.0%
B03Alekhine's defence, four pawns attack, fianchetto variation6533.8%61.5%
B04Alekhine's defence, modern variation69025.7%59.9%
B04Alekhine's defence, modern, Keres variation28836.1%61.8%
B04Alekhine's defence, modern, Larsen variation230832.4%58.8%
B04Alekhine's defence, modern, Schmid variation15728.0%65.0%
B04Alekhine's defence, modern, fianchetto variation138331.3%55.2%
B05Alekhine's defence, modern variation, 4...Bg4125730.3%63.5%
B05Alekhine's defence, modern, Alekhine variation1625.0%56.3%
B05Alekhine's defence, modern, Flohr variation58328.3%63.9%
B05Alekhine's defence, modern, Panov variation4226.2%58.3%
B05Alekhine's defence, modern, Vitolins attack1822.2%38.9%
B06Norwegian defence425.0%62.5%
B06Robatsch (modern) defence1494428.8%55.7%
B06Robatsch defence199729.1%59.2%
B06Robatsch defence, Gurgenidze variation198319.4%64.3%
B06Robatsch defence, Pseudo-Austrian attack149224.4%58.4%
B06Robatsch defence, Two knights variation68630.2%58.7%
B06Robatsch defence, Two knights, Suttles variation255434.1%58.2%
B06Robatsch defence, three pawns attack18021.1%56.1%
B07Pirc defence471224.7%54.5%
B07Pirc, 150 attack113526.5%54.3%
B07Pirc, Byrne variation57126.1%56.5%
B07Pirc, Chinese variation40.0%50.0%
B07Pirc, Holmov system6530.8%50.8%
B07Pirc, Sveshnikov system221826.5%53.4%
B07Pirc, Ufimtsev-Pytel variation125625.6%55.9%
B07Pirc, bayonet (Mariotti) attack6619.7%53.8%
B07Robatsch defence, Geller's system169930.2%56.7%
B08Pirc, classical (two knights) system114528.6%56.5%
B08Pirc, classical system, 5.Be2692932.3%58.2%
B08Pirc, classical, h3 system74629.9%56.2%
B09Pirc, Austrian attack100327.3%59.9%
B09Pirc, Austrian attack, 6.Bd3605930.4%58.1%
B09Pirc, Austrian attack, 6.Be3111123.9%56.8%
B09Pirc, Austrian attack, 6.e532228.9%59.5%
B09Pirc, Austrian attack, Ljubojevic variation2025.0%62.5%
B09Pirc, Austrian attack, dragon formation176029.9%54.5%
B10Caro-Kann defence1048228.4%53.9%
B10Caro-Kann, Goldman (Spielmann) variation21323.5%50.7%
B10Caro-Kann, Hillbilly attack3735.1%58.1%
B10Caro-Kann, Two knights variation140728.5%55.7%
B10Caro-Kann, anti-Caro-Kann defence186128.5%56.9%
B10Caro-Kann, anti-anti-Caro-Kann defence359833.2%52.5%
B10Caro-Kann, closed (Breyer) variation348525.9%50.6%
B11Caro-Kann, Two knights, 3...Bg4280125.6%52.9%
B12Caro-Kann defence234122.7%57.1%
B12Caro-Kann, 3.Nd267426.0%59.4%
B12Caro-Kann, Edinburgh variation8423.8%61.9%
B12Caro-Kann, Tartakower (fantasy) variation166427.0%55.5%
B12Caro-Kann, advance variation3266426.0%54.9%
B12Caro-Kann, advance, Short variation10819.4%66.2%
B12Caro-Masi defence1414.3%50.0%
B12de Bruycker defence11130.6%64.0%
B13Caro-Kann, Panov-Botvinnik attack255534.7%53.5%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation4744.7%60.6%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1435.7%53.6%
B13Caro-Kann, Panov-Botvinnik, Herzog defence4129.3%56.1%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation1030.0%55.0%
B13Caro-Kann, Panov-Botvinnik, normal variation30636.6%48.0%
B13Caro-Kann, exchange variation154831.2%51.0%
B13Caro-Kann, exchange, Rubinstein variation28933.6%53.8%
B14Caro-Kann, Panov-Botvinnik attack, 5...e61214937.5%54.9%
B14Caro-Kann, Panov-Botvinnik attack, 5...g651038.0%53.7%
B15Caro-Kann defence79424.9%50.8%
B15Caro-Kann, Alekhine gambit3748.6%56.8%
B15Caro-Kann, Forgacs variation14037.1%53.6%
B15Caro-Kann, Gurgenidze counter-attack5217.3%56.7%
B15Caro-Kann, Gurgenidze system71629.2%56.9%
B15Caro-Kann, Rasa-Studier gambit3321.2%50.0%
B15Caro-Kann, Tartakower (Nimzovich) variation328937.9%53.3%
B16Caro-Kann, Bronstein-Larsen variation104523.3%62.5%
B17Caro-Kann, Steinitz variation612729.3%53.9%
B18Caro-Kann, classical variation250930.5%54.4%
B18Caro-Kann, classical, 6.h4396234.1%54.3%
B18Caro-Kann, classical, Flohr variation11235.7%59.8%
B18Caro-Kann, classical, Maroczy attack1050.0%65.0%
B19Caro-Kann, classical, 7...Nd7108827.9%51.7%
B19Caro-Kann, classical, Spassky variation1226130.1%57.2%
B20Sicilian defence1139925.8%49.0%
B20Sicilian, Gloria variation2619.2%51.9%
B20Sicilian, Keres variation (2.Ne2)219528.4%53.5%
B20Sicilian, Steinitz variation169827.0%53.9%
B20Sicilian, wing gambit25429.1%46.9%
B20Sicilian, wing gambit, Carlsbad variation7226.4%56.3%
B20Sicilian, wing gambit, Marienbad variation30.0%33.3%
B20Sicilian, wing gambit, Marshall variation100528.8%40.5%
B20Sicilian, wing gambit, Santasiere variation250.0%75.0%
B21Sicilian, Andreaschek gambit1942.1%57.9%
B21Sicilian, Grand Prix attack356426.1%49.2%
B21Sicilian, Smith-Morra gambit177428.1%49.5%
B22Sicilian, 2.c3, Heidenfeld variation6129.5%44.3%
B22Sicilian, Alapin's variation (2.c3)2589034.3%54.2%
B23Sicilian, Grand Prix attack72625.8%52.4%
B23Sicilian, Grand Prix attack, Schofman variation1827.8%30.6%
B23Sicilian, chameleon variation223028.2%56.3%
B23Sicilian, closed925329.3%53.2%
B23Sicilian, closed, 2...Nc6533328.8%52.6%
B23Sicilian, closed, Korchnoi variation79229.7%48.4%
B24Sicilian, closed83128.0%49.3%
B24Sicilian, closed, Smyslov variation1533.3%70.0%
B25Sicilian, closed33131.4%51.4%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)11120.7%52.7%
B25Sicilian, closed, 6.f4187931.8%49.9%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)22124.4%44.8%
B26Sicilian, closed, 6.Be376025.7%46.9%
B27Sicilian defence14531.0%59.7%
B27Sicilian, Acton extension1323.1%57.7%
B27Sicilian, Hungarian variation1104233.5%57.1%
B27Sicilian, Katalimov variation24327.6%55.8%
B27Sicilian, Quinteros variation11719.7%58.5%
B27Sicilian, Stiletto (Althouse) variation2433.3%62.5%
B28Sicilian, O'Kelly variation147428.8%56.9%
B29Sicilian, Nimzovich-Rubinstein variation92130.1%55.5%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit7837.2%57.1%
B30Sicilian defence613030.4%52.0%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)970230.1%55.2%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)558630.0%55.6%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation2128.6%47.6%
B32Sicilian defence127929.4%50.7%
B32Sicilian, Flohr variation18129.8%58.0%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation246529.6%54.6%
B32Sicilian, Labourdonnais-Loewenthal variation51533.4%51.3%
B32Sicilian, Nimzovich variation3520.0%52.9%
B33Sicilian defence142930.4%53.2%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation149225.2%53.4%
B33Sicilian, Pelikan, Bird variation51027.3%59.3%
B33Sicilian, Pelikan, Chelyabinsk variation697428.6%55.3%
B33Sicilian, Sveshnikov variation444429.5%53.1%
B34Sicilian, accelerated fianchetto, exchange variation3534.3%45.7%
B34Sicilian, accelerated fianchetto, modern variation224034.9%50.3%
B35Sicilian, accelerated fianchetto, modern variation with Bc4629934.4%54.3%
B36Sicilian, accelerated fianchetto, Gurgenidze variation39238.3%54.3%
B36Sicilian, accelerated fianchetto, Maroczy bind213937.4%56.8%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg735135.0%52.6%
B37Sicilian, accelerated fianchetto, Simagin variation1030.0%45.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3299038.7%57.1%
B39Sicilian, accelerated fianchetto, Breyer variation152933.5%60.9%
B40Sicilian defence1395431.4%52.8%
B40Sicilian, Anderssen variation313132.3%55.9%
B40Sicilian, Marshall variation3826.3%50.0%
B40Sicilian, Pin variation (Sicilian counter-attack)18823.9%52.4%
B40Sicilian, Pin, Jaffe variation911.1%61.1%
B40Sicilian, Pin, Koch variation23122.5%72.7%
B41Sicilian, Kan variation31229.2%54.6%
B41Sicilian, Kan, Maroczy bind (Reti variation)146531.7%56.7%
B41Sicilian, Kan, Maroczy bind - Bronstein variation6529.2%53.1%
B42Sicilian, Kan, 5.Bd3557830.2%56.7%
B42Sicilian, Kan, Gipslis variation19728.9%57.1%
B42Sicilian, Kan, Polugaievsky variation331126.9%54.7%
B42Sicilian, Kan, Swiss cheese variation32827.1%56.9%
B43Sicilian, Kan, 5.Nc3942829.9%55.1%
B44Sicilian defence45629.4%52.9%
B44Sicilian, Szen (`anti-Taimanov') variation107431.9%51.4%
B44Sicilian, Szen variation, Dely-Kasparov gambit2642.3%51.9%
B44Sicilian, Szen, hedgehog variation42930.3%48.3%
B45Sicilian, Taimanov variation651928.8%54.8%
B45Sicilian, Taimanov, American attack2454.2%47.9%
B46Sicilian, Taimanov variation675529.7%55.2%
B47Sicilian, Taimanov (Bastrikov) variation1209831.3%54.6%
B48Sicilian, Taimanov variation843728.7%54.3%
B49Sicilian, Taimanov variation382933.5%56.1%
B50Sicilian925330.3%52.1%
B50Sicilian, wing gambit deferred5527.3%51.8%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack431231.8%56.1%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7289937.3%51.5%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit17526.9%43.7%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation196535.3%53.4%
B53Sicilian, Chekhover variation164637.5%49.6%
B53Sicilian, Chekhover, Zaitsev variation6624.2%50.0%
B54Sicilian157329.8%54.0%
B54Sicilian, Prins (Moscow) variation61632.1%53.2%
B55Sicilian, Prins variation, Venice attack13537.0%57.0%
B56Sicilian574226.9%54.4%
B56Sicilian, Venice attack68334.3%62.5%
B57Sicilian, Magnus Smith trap4327.9%53.5%
B57Sicilian, Sozin, Benko variation541929.6%51.1%
B57Sicilian, Sozin, not Scheveningen62229.7%54.6%
B58Sicilian, Boleslavsky variation90333.4%49.2%
B58Sicilian, Boleslavsky, Louma variation4926.5%54.1%
B58Sicilian, classical76535.3%51.4%
B59Sicilian, Boleslavsky variation, 7.Nb316540.0%54.5%
B60Sicilian, Richter-Rauzer215428.5%55.8%
B60Sicilian, Richter-Rauzer, Bondarevsky variation3036.7%51.7%
B60Sicilian, Richter-Rauzer, Larsen variation37124.8%54.2%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd264428.7%60.3%
B62Sicilian, Richter-Rauzer, 6...e619126.7%48.4%
B62Sicilian, Richter-Rauzer, Keres variation56730.9%53.7%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation54732.7%50.2%
B62Sicilian, Richter-Rauzer, Podvebrady variation4334.9%52.3%
B62Sicilian, Richter-Rauzer, Richter attack20.0%50.0%
B63Sicilian, Richter-Rauzer, Rauzer attack52627.2%57.1%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7239228.6%52.3%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f467634.0%54.6%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation323.1%70.3%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4160230.6%57.0%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a61755825.5%51.5%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7836925.7%52.6%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be727228.3%54.6%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf656627.0%55.9%
B70Sicilian, dragon variation87130.7%50.2%
B71Sicilian, dragon, Levenfish variation11338.9%47.8%
B71Sicilian, dragon, Levenfish; Flohr variation1010.0%55.0%
B72Sicilian, dragon, 6.Be329827.2%51.2%
B72Sicilian, dragon, classical attack12133.1%55.4%
B72Sicilian, dragon, classical, Amsterdam variation6439.1%44.5%
B72Sicilian, dragon, classical, Grigoriev variation1250.0%66.7%
B72Sicilian, dragon, classical, Nottingham variation10131.7%44.6%
B73Sicilian, dragon, classical, 8.O-O27438.0%55.8%
B73Sicilian, dragon, classical, Richter variation26336.1%50.8%
B73Sicilian, dragon, classical, Zollner gambit2532.0%28.0%
B74Sicilian, dragon, classical, 9.Nb336141.3%50.3%
B74Sicilian, dragon, classical, Alekhine variation3823.7%61.8%
B74Sicilian, dragon, classical, Reti-Tartakower variation21033.8%52.6%
B74Sicilian, dragon, classical, Spielmann variation6628.8%53.8%
B75Sicilian, dragon, Yugoslav attack43628.4%53.2%
B76Sicilian, dragon, Yugoslav attack, 7...O-O66728.9%52.5%
B76Sicilian, dragon, Yugoslav attack, Rauser variation167826.5%59.9%
B77Sicilian, dragon, Yugoslav attack, 9...Bd747825.5%55.4%
B77Sicilian, dragon, Yugoslav attack, 9.Bc411331.9%54.0%
B77Sicilian, dragon, Yugoslav attack, Byrne variation616.7%75.0%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O186324.5%56.0%
B79Sicilian, dragon, Yugoslav attack, 12.h414630.8%64.0%
B80Sicilian, Scheveningen variation148124.0%53.9%
B80Sicilian, Scheveningen, English variation79826.3%51.6%
B80Sicilian, Scheveningen, Vitolins variation12718.1%46.1%
B80Sicilian, Scheveningen, fianchetto variation55028.2%51.5%
B81Sicilian, Scheveningen, Keres attack521325.7%59.1%
B82Sicilian, Scheveningen, 6.f483729.7%55.7%
B82Sicilian, Scheveningen, Tal variation20119.9%59.7%
B83Sicilian, Scheveningen, 6.Be288730.2%50.8%
B83Sicilian, modern Scheveningen96330.4%50.7%
B83Sicilian, modern Scheveningen, main line76936.9%52.9%
B83Sicilian, modern Scheveningen, main line with Nb316824.4%49.7%
B84Sicilian, Scheveningen (Paulsen), classical variation1184530.8%52.2%
B84Sicilian, Scheveningen, classical, Nd7 system12229.5%54.1%
B85Sicilian, Scheveningen, classical28139.9%53.4%
B85Sicilian, Scheveningen, classical main line88041.1%54.8%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc62321.7%50.0%
B85Sicilian, Scheveningen, classical, Maroczy system6833.8%55.1%
B86Sicilian, Sozin attack29027.9%46.4%
B87Sicilian, Sozin with ...a6 and ...b5141227.9%48.4%
B88Sicilian, Sozin, Fischer variation4250.0%51.2%
B88Sicilian, Sozin, Leonhardt variation74333.8%49.5%
B89Sicilian, Sozin, 7.Be3454027.1%49.1%
B89Sicilian, Velimirovic attack177024.7%50.9%
B90Sicilian, Najdorf1562925.5%51.3%
B90Sicilian, Najdorf, Adams attack390125.3%52.6%
B90Sicilian, Najdorf, Byrne (English) attack5780425.7%51.5%
B90Sicilian, Najdorf, Lipnitzky attack264228.9%48.9%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation172228.9%51.9%
B92Sicilian, Najdorf, Opovcensky variation1397831.0%52.6%
B93Sicilian, Najdorf, 6.f4278429.6%49.7%
B94Sicilian, Najdorf, 6.Bg5207626.6%53.3%
B95Sicilian, Najdorf, 6...e6250628.6%53.9%
B96Sicilian, Najdorf, 7.f4274124.2%49.8%
B96Sicilian, Najdorf, Polugayevsky variation16926.0%49.7%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation5020.0%52.0%
B97Sicilian, Najdorf, 7...Qb6351625.3%47.7%
B97Sicilian, Najdorf, Poisoned pawn variation387028.4%44.5%
B98Sicilian, Najdorf variation22625.7%50.0%
B98Sicilian, Najdorf, 7...Be729925.4%53.8%
B98Sicilian, Najdorf, Browne variation9732.0%58.2%
B98Sicilian, Najdorf, Goteborg (Argentine) variation1435.7%46.4%
B99Sicilian, Najdorf, 7...Be7 main line181222.8%54.2%
C00French defence562925.5%53.4%
C00French defence, Steiner variation145429.0%49.8%
C00French, Alapin variation6622.7%46.2%
C00French, Chigorin variation480126.6%51.0%
C00French, King's Indian attack928928.4%51.1%
C00French, Labourdonnais variation87227.1%49.3%
C00French, Pelikan variation10229.4%49.0%
C00French, Reti (Spielmann) variation44324.8%53.3%
C00French, Reversed Philidor formation8229.3%40.2%
C00French, Schlechter variation60731.6%51.7%
C00French, Steinitz attack6440.6%54.7%
C00French, Two knights variation177926.3%51.1%
C00French, Wing gambit8713.8%46.0%
C00Lengfellner system11931.1%60.9%
C00St. George defence83728.3%55.0%
C01French, exchange variation266833.0%52.9%
C01French, exchange, Bogolyubov variation1216.7%41.7%
C01French, exchange, Svenonius variation7536.0%56.7%
C02French, advance variation241826.0%53.5%
C02French, advance, Euwe variation610427.7%53.9%
C02French, advance, Milner-Barry gambit14025.7%54.3%
C02French, advance, Nimzovich system39320.9%47.6%
C02French, advance, Nimzovich variation6227.4%33.1%
C02French, advance, Paulsen attack384127.8%54.3%
C02French, advance, Steinitz variation119828.2%52.3%
C02French, advance, Wade variation42328.8%55.1%
C03French, Tarrasch370530.6%56.9%
C03French, Tarrasch, Guimard variation29726.9%59.6%
C03French, Tarrasch, Haberditz variation229.1%59.1%
C04French, Tarrasch, Guimard main line62826.6%56.0%
C05French, Tarrasch, Botvinnik variation15823.4%57.3%
C05French, Tarrasch, closed variation250924.9%57.7%
C06French, Tarrasch, Leningrad variation5418.5%55.6%
C06French, Tarrasch, closed variation, main line343633.7%55.8%
C07French, Tarrasch, Eliskases variation28742.9%54.2%
C07French, Tarrasch, open variation837934.5%52.9%
C08French, Tarrasch, open, 4.ed ed594742.3%53.8%
C09French, Tarrasch, open variation, main line234137.2%56.0%
C10French, Fort Knox variation49234.3%53.8%
C10French, Frere (Becker) variation6930.4%55.8%
C10French, Marshall variation1435.7%67.9%
C10French, Paulsen variation209627.9%56.1%
C10French, Rubinstein variation1291836.1%53.9%
C10French, Rubinstein, Capablanca line2733.3%57.4%
C11French defence68826.5%49.7%
C11French, Burn variation1183932.6%52.2%
C11French, Henneberger variation3336.4%36.4%
C11French, Steinitz variation228826.3%55.4%
C11French, Steinitz, Boleslavsky variation1105628.4%54.7%
C11French, Steinitz, Bradford attack30.0%33.3%
C11French, Steinitz, Gledhill attack5438.9%52.8%
C11French, Swiss variation15632.1%44.9%
C12French, MacCutcheon variation31630.4%51.9%
C12French, MacCutcheon, Bernstein variation2913.8%51.7%
C12French, MacCutcheon, Bogolyubov variation616.7%75.0%
C12French, MacCutcheon, Chigorin variation5733.3%51.8%
C12French, MacCutcheon, Dr. Olland (Dutch) variation4129.3%53.7%
C12French, MacCutcheon, Duras variation366.7%66.7%
C12French, MacCutcheon, Grigoriev variation1060.0%50.0%
C12French, MacCutcheon, Janowski variation18325.1%59.0%
C12French, MacCutcheon, Lasker variation55621.6%52.5%
C12French, MacCutcheon, Lasker variation, 8...g685825.1%55.0%
C12French, MacCutcheon, Tartakower variation450.0%50.0%
C12French, MacCutcheon, advance variation1435.7%53.6%
C13French, Albin-Alekhine-Chatard attack81519.8%56.5%
C13French, Albin-Alekhine-Chatard attack, Breyer variation10126.7%55.9%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1030.0%35.0%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation7431.1%58.8%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation1020.0%80.0%
C13French, classical2714.8%51.9%
C13French, classical, Anderssen variation4721.3%38.3%
C13French, classical, Anderssen-Richter variation1315.4%30.8%
C13French, classical, Frankfurt variation1618.8%84.4%
C13French, classical, Tartakower variation3030.0%51.7%
C13French, classical, Vistaneckis (Nimzovich) variation616.7%58.3%
C14French, classical variation2917.2%32.8%
C14French, classical, Alapin variation10237.3%58.8%
C14French, classical, Pollock variation2025.0%47.5%
C14French, classical, Rubinstein variation5621.4%55.4%
C14French, classical, Stahlberg variation540.0%60.0%
C14French, classical, Steinitz variation109127.9%58.2%
C14French, classical, Tarrasch variation850.0%62.5%
C15French, Winawer (Nimzovich) variation163833.6%53.8%
C15French, Winawer, Alekhine (Maroczy) gambit60029.8%56.8%
C15French, Winawer, Alekhine gambit128.3%54.2%
C15French, Winawer, Alekhine gambit, Alatortsev variation1100.0%50.0%
C15French, Winawer, Alekhine gambit, Kan variation20734.3%49.0%
C15French, Winawer, Kondratiyev variation1637.5%62.5%
C15French, Winawer, fingerslip variation7118.3%57.0%
C16French, Winawer, Petrosian variation43824.9%53.5%
C16French, Winawer, advance variation135925.3%56.4%
C17French, Winawer, advance variation11925.2%60.5%
C17French, Winawer, advance, 5.a381325.3%57.4%
C17French, Winawer, advance, Bogolyubov variation35230.7%56.3%
C17French, Winawer, advance, Rauzer variation955.6%50.0%
C17French, Winawer, advance, Russian variation8627.9%51.2%
C18French, Winawer, advance variation93920.7%58.4%
C18French, Winawer, classical variation83721.3%56.5%
C19French, Winawer, advance, 6...Ne7120625.2%62.1%
C19French, Winawer, advance, Smyslov variation29126.5%60.0%
C19French, Winawer, advance, poisoned pawn variation561123.9%59.3%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation1450.0%53.6%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation152825.7%60.5%
C19French, Winawer, advance, positional main line314924.5%58.1%
C20Alapin's opening13824.6%52.2%
C20KP, Indian opening38230.9%50.3%
C20KP, King's head opening1735.3%58.8%
C20KP, Lopez opening6835.3%45.6%
C20KP, Mengarini's opening9823.5%56.6%
C20KP, Napoleon's opening1741.2%50.0%
C20KP, Patzer opening11432.5%44.3%
C20King's pawn game36124.7%51.4%
C21Centre game45332.5%55.3%
C21Danish gambit11238.4%51.3%
C21Danish gambit, Collijn defence40.0%50.0%
C21Danish gambit, Schlechter defence425.0%37.5%
C21Danish gambit, Soerensen defence8733.3%51.1%
C21Halasz gambit8135.8%38.9%
C22Centre game7121.1%51.4%
C22Centre game, Berger variation48527.4%52.9%
C22Centre game, Charousek variation1225.0%45.8%
C22Centre game, Hall variation1833.3%44.4%
C22Centre game, Paulsen attack26035.8%50.2%
C22Centre game, l'Hermet variation450.0%75.0%
C23Bishop's opening58427.1%51.0%
C23Bishop's opening, Calabrese counter-gambit333.3%16.7%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation1711.8%64.7%
C23Bishop's opening, Classical variation17322.0%48.6%
C23Bishop's opening, Lewis counter-gambit633.3%50.0%
C23Bishop's opening, Lewis gambit933.3%38.9%
C23Bishop's opening, Lisitsyn variation1100.0%50.0%
C23Bishop's opening, Philidor counter-attack19536.4%56.2%
C23Bishop's opening, Philidor variation2123.8%54.8%
C23Bishop's opening, Wing gambit425.0%87.5%
C24Bishop's opening, Berlin defence263029.0%52.2%
C24Bishop's opening, Ponziani gambit3324.2%36.4%
C24Bishop's opening, Urusov gambit5429.6%48.1%
C24Bishop's opening, Urusov gambit, Panov variation812.5%56.3%
C25Vienna gambit16025.0%51.9%
C25Vienna game103325.9%53.5%
C25Vienna game, Max Lange defence14523.4%49.7%
C25Vienna, Hamppe-Allgaier gambit520.0%30.0%
C25Vienna, Paulsen variation148423.0%52.2%
C25Vienna, Pierce gambit2814.3%42.9%
C25Vienna, Steinitz gambit540.0%60.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation1118.2%36.4%
C25Vienna, Steinitz gambit, Zukertort defence250.0%75.0%
C26Vienna game59826.9%52.1%
C26Vienna, Falkbeer variation19521.5%52.3%
C26Vienna, Mengarini variation5933.9%52.5%
C26Vienna, Paulsen-Mieses variation212029.6%50.8%
C27Boden-Kieseritsky gambit6719.4%47.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence1233.3%41.7%
C27Vienna game55528.1%49.5%
C27Vienna, Alekhine variation25025.6%46.8%
C27Vienna, `Frankenstein-Dracula' variation4226.2%56.0%
C28Vienna game50831.9%50.6%
C29Vienna gambit61829.3%46.4%
C29Vienna gambit, Bardeleben variation1729.4%32.4%
C29Vienna gambit, Breyer variation27631.5%54.5%
C29Vienna gambit, Heyde variation10.0%0.0%
C29Vienna gambit, Kaufmann variation1435.7%60.7%
C29Vienna gambit, Paulsen attack5437.0%55.6%
C29Vienna gambit, Steinitz variation4027.5%48.8%
C30KGD, 2...Nf69524.2%52.1%
C30KGD, Keene's defence11225.0%55.4%
C30KGD, Mafia defence14825.7%63.5%
C30KGD, Norwalde variation2030.0%50.0%
C30KGD, classical counter-gambit1816.7%52.8%
C30KGD, classical variation34924.9%48.9%
C30KGD, classical, 4.c342928.0%55.7%
C30KGD, classical, Hanham variation450.0%25.0%
C30KGD, classical, Heath variation2138.1%38.1%
C30KGD, classical, Marshall attack1838.9%52.8%
C30KGD, classical, Reti variation616.7%75.0%
C30KGD, classical, Soldatenkov variation2133.3%50.0%
C30KGD, classical, Svenonius variation520.0%50.0%
C30King's gambit39727.5%53.3%
C31KGD, Falkbeer counter-gambit19722.8%48.5%
C31KGD, Falkbeer, 3...e43023.3%48.3%
C31KGD, Falkbeer, 4.d32544.0%62.0%
C31KGD, Falkbeer, Morphy gambit1338.5%65.4%
C31KGD, Falkbeer, Nimzovich variation119.1%31.8%
C31KGD, Falkbeer, Rubinstein variation1136.4%36.4%
C31KGD, Falkbeer, Tartakower variation2733.3%72.2%
C31KGD, Nimzovich counter-gambit15228.9%48.7%
C32KGD, Falkbeer, 5.de6731.3%53.0%
C32KGD, Falkbeer, Charousek gambit40.0%75.0%
C32KGD, Falkbeer, Charousek variation10.0%0.0%
C32KGD, Falkbeer, Keres variation1100.0%50.0%
C32KGD, Falkbeer, Reti variation3026.7%50.0%
C32KGD, Falkbeer, Tarrasch variation10.0%100.0%
C32KGD, Falkbeer, main line, 7...Bf51275.0%37.5%
C33KGA, Breyer gambit3831.6%36.8%
C33KGA, Carrera (Basman) gambit5334.0%43.4%
C33KGA, Keres (Mason-Steinitz) gambit8313.3%45.2%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit2913.8%44.8%
C33KGA, Lopez-Gianutio counter-gambit, Hein variation250.0%75.0%
C33KGA, Villemson (Steinitz) gambit1428.6%50.0%
C33KGA, bishop's gambit28922.8%51.9%
C33KGA, bishop's gambit, Anderssen variation812.5%81.3%
C33KGA, bishop's gambit, Bledow variation10935.8%47.2%
C33KGA, bishop's gambit, Boden defence1513.3%40.0%
C33KGA, bishop's gambit, Bogolyubov variation6923.2%47.8%
C33KGA, bishop's gambit, Boren-Svenonius variation30.0%66.7%
C33KGA, bishop's gambit, Bryan counter-gambit933.3%50.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence5827.6%41.4%
C33KGA, bishop's gambit, Jaenisch variation26925.3%51.7%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit3721.6%29.7%
C33KGA, bishop's gambit, Maurian defence4027.5%46.3%
C33KGA, bishop's gambit, McDonnell attack250.0%75.0%
C33KGA, bishop's gambit, Morphy variation19726.9%48.5%
C33KGA, bishop's gambit, Paulsen attack1926.3%44.7%
C33KGA, bishop's gambit, Ruy Lopez defence4020.0%50.0%
C33KGA, bishop's gambit, Steinitz defence14328.0%49.0%
C33KGA, bishop's gambit, classical defence1711.8%29.4%
C33King's gambit accepted1520.0%56.7%
C34KGA, Becker defence9616.7%43.8%
C34KGA, Bonsch-Osmolovsky variation10231.4%50.0%
C34KGA, Fischer defence40921.5%46.5%
C34KGA, Gianutio counter-gambit10.0%0.0%
C34KGA, Schallop defence18422.3%51.4%
C34King's knight's gambit10715.9%45.3%
C35KGA, Cunningham defence18721.9%50.0%
C35KGA, Cunningham, Bertin gambit20.0%50.0%
C35KGA, Cunningham, Euwe defence10433.7%49.5%
C36KGA, Abbazia defence (classical defence, modern defence[!])7828.2%52.6%
C36KGA, Abbazia defence, Botvinnik variation20.0%100.0%
C36KGA, Abbazia defence, modern variation39830.7%47.5%
C37KGA, Blachly gambit2718.5%27.8%
C37KGA, Ghulam Kassim gambit10.0%0.0%
C37KGA, King's knight's gambit1030.0%55.0%
C37KGA, Lolli gambit (wild Muzio gambit)1100.0%50.0%
C37KGA, MacDonnell gambit250.0%75.0%
C37KGA, Muzio gambit128.3%12.5%
C37KGA, Quaade gambit3815.8%23.7%
C37KGA, Rosentreter gambit1145.5%50.0%
C37KGA, Salvio gambit1428.6%42.9%
C37KGA, Salvio gambit, Anderssen counter-attack40.0%25.0%
C37KGA, Silberschmidt gambit425.0%12.5%
C37KGA, double Muzio gambit10.0%0.0%
C38KGA, Hanstein gambit2524.0%40.0%
C38KGA, Philidor gambit60.0%33.3%
C38KGA, Philidor gambit, Schultz variation50.0%20.0%
C38King's knight's gambit1323.1%50.0%
C39KGA, Allgaier gambit10.0%100.0%
C39KGA, Kieseritsky, Berlin defence8518.8%41.2%
C39KGA, Kieseritsky, Berlin defence, 6.Bc49529.5%43.2%
C39KGA, Kieseritsky, Brentano (Campbell) defence20.0%100.0%
C39KGA, Kieseritsky, Kolisch defence17130.4%49.1%
C39KGA, Kieseritsky, Neumann defence119.1%59.1%
C39KGA, Kieseritsky, Paulsen defence540.0%40.0%
C39KGA, Kieseritsky, Rice gambit2250.0%25.0%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence3148.4%46.8%
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 defence10419.2%63.5%
C40Gunderam defence33526.3%62.4%
C40King's knight opening616.7%41.7%
C40Latvian counter-gambit26329.7%57.4%
C40Latvian gambit, 3.Bc41030.0%75.0%
C40Latvian, Fraser defence2711.1%57.4%
C40Latvian, Polerio variation60.0%33.3%
C40QP counter-gambit (elephant gambit)22518.2%63.3%
C40QP counter-gambit, Maroczy gambit7525.3%60.7%
C41Philidor's defence82530.1%55.2%
C41Philidor, Boden variation4721.3%51.1%
C41Philidor, Hanham variation12737.0%55.5%
C41Philidor, Hanham, Delmar variation1233.3%66.7%
C41Philidor, Hanham, Kmoch variation20.0%50.0%
C41Philidor, Hanham, Krause variation3732.4%62.2%
C41Philidor, Hanham, Schlechter variation8627.9%60.5%
C41Philidor, Hanham, Steiner variation3531.4%67.1%
C41Philidor, Improved Hanham variation138627.3%56.3%
C41Philidor, Larsen variation11728.2%64.5%
C41Philidor, Lopez counter-gambit1513.3%80.0%
C41Philidor, Nimzovich (Jaenisch) variation10231.4%48.0%
C41Philidor, Nimzovich variation4233.3%57.1%
C41Philidor, Nimzovich, Klein variation1711.8%64.7%
C41Philidor, Nimzovich, Larobok variation5141.2%34.3%
C41Philidor, Nimzovich, Locock variation20.0%50.0%
C41Philidor, Nimzovich, Rellstab variation11530.4%63.9%
C41Philidor, Nimzovich, Sokolsky variation520.0%50.0%
C41Philidor, Nimzovich, Sozin variation4517.8%48.9%
C41Philidor, Paulsen attack40.0%100.0%
C41Philidor, Philidor counter-gambit3923.1%52.6%
C41Philidor, Philidor counter-gambit, Zukertort variation1931.6%57.9%
C41Philidor, Philidor counter-gambit, del Rio attack540.0%60.0%
C41Philidor, Steinitz variation2025.0%52.5%
C41Philidor, exchange variation282427.0%57.5%
C42Petrov three knights game97828.4%54.8%
C42Petrov's defence123126.8%53.6%
C42Petrov, Cochrane gambit5820.7%44.8%
C42Petrov, Cozio (Lasker) attack30532.8%51.8%
C42Petrov, Damiano variation5437.0%53.7%
C42Petrov, French attack1618.8%65.6%
C42Petrov, Italian variation16520.0%51.8%
C42Petrov, Kaufmann attack38331.9%55.4%
C42Petrov, Nimzovich attack105735.4%52.6%
C42Petrov, Paulsen attack46627.0%50.4%
C42Petrov, classical attack443537.0%57.2%
C42Petrov, classical attack, Berger variation3333.3%50.0%
C42Petrov, classical attack, Chigorin variation213538.2%55.6%
C42Petrov, classical attack, Jaenisch variation600639.2%56.7%
C42Petrov, classical attack, Krause variation366.7%66.7%
C42Petrov, classical attack, Marshall variation270330.6%55.5%
C42Petrov, classical attack, Mason variation11941.2%64.3%
C42Petrov, classical attack, Tarrasch variation1136.4%72.7%
C42Petrov, classical attack, close variation23532.3%54.0%
C43Petrov, Urusov gambit468.7%45.7%
C43Petrov, modern (Steinitz) attack16623.5%60.5%
C43Petrov, modern attack, Bardeleben variation1816.7%63.9%
C43Petrov, modern attack, Steinitz variation1127.3%59.1%
C43Petrov, modern attack, Symmetrical variation994335.9%54.4%
C43Petrov, modern attack, Trifunovic variation9234.8%51.1%
C43Petrov, modern attack, main line66232.3%57.9%
C44Dresden opening6421.9%45.3%
C44Inverted Hanham6526.2%48.5%
C44Inverted Hungarian9138.5%50.0%
C44King's pawn game12528.0%49.2%
C44Konstantinopolsky opening6729.9%47.8%
C44Ponziani counter-gambit40121.7%52.2%
C44Ponziani counter-gambit, Cordel variation10.0%100.0%
C44Ponziani counter-gambit, Schmidt attack20.0%0.0%
C44Ponziani opening29326.3%57.8%
C44Ponziani, Caro variation17229.7%49.1%
C44Ponziani, Fraser defence366.7%33.3%
C44Ponziani, Jaenisch counter-attack103030.2%47.6%
C44Ponziani, Leonhardt variation9133.0%47.3%
C44Ponziani, Reti variation166.3%53.1%
C44Ponziani, Romanishin variation1850.0%69.4%
C44Ponziani, Steinitz variation17234.3%50.9%
C44Scotch gambit12924.8%51.2%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack3100.0%50.0%
C44Scotch gambit, Benima defence6829.4%50.0%
C44Scotch gambit, Dubois-Reti defence93329.7%49.1%
C44Scotch opening8929.2%46.1%
C44Scotch, Goering gambit22229.7%49.5%
C44Scotch, Goering gambit, Bardeleben variation1421.4%39.3%
C44Scotch, Lolli variation8622.1%52.9%
C44Scotch, Relfsson gambit ('MacLopez')5213.5%47.1%
C44Tayler opening1346.2%30.8%
C45Scotch game488731.8%53.2%
C45Scotch, Blackburne attack2552.0%58.0%
C45Scotch, Blumenfeld attack1553.3%26.7%
C45Scotch, Fraser attack10.0%100.0%
C45Scotch, Ghulam Kassim variation1050.0%55.0%
C45Scotch, Horwitz attack3836.8%55.3%
C45Scotch, Meitner variation4334.9%52.3%
C45Scotch, Mieses variation257733.9%50.9%
C45Scotch, Paulsen attack2944.8%39.7%
C45Scotch, Potter variation41435.0%48.7%
C45Scotch, Pulling counter-attack3522.9%51.4%
C45Scotch, Romanishin variation4025.0%45.0%
C45Scotch, Rosenthal variation10.0%0.0%
C45Scotch, Schmidt variation160142.0%50.3%
C45Scotch, Steinitz variation6826.5%47.1%
C45Scotch, Tartakower variation2429.2%52.1%
C46Four knights game161330.4%51.0%
C46Four knights, Gunsberg variation19033.7%48.9%
C46Four knights, Italian variation54930.6%49.5%
C46Four knights, Schultze-Mueller gambit3132.3%38.7%
C46Three knights game45826.4%54.3%
C46Three knights, Schlechter variation2634.6%63.5%
C46Three knights, Steinitz variation25724.5%52.7%
C46Three knights, Steinitz, Rosenthal variation2454.2%60.4%
C47Four knights, Belgrade gambit35123.1%46.6%
C47Four knights, Scotch variation7240.3%59.0%
C47Four knights, Scotch, 4...exd488336.2%50.7%
C47Four knights, Scotch, Krause variation33931.6%55.3%
C48Four knights, Bardeleben variation922.2%55.6%
C48Four knights, Marshall variation1711.8%47.1%
C48Four knights, Ranken variation3225.0%43.8%
C48Four knights, Rubinstein counter-gambit191125.8%53.4%
C48Four knights, Rubinstein counter-gambit, 5.Be21735.3%52.9%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1735.3%52.9%
C48Four knights, Rubinstein counter-gambit, Henneberger variation5234.6%63.5%
C48Four knights, Rubinstein counter-gambit, exchange variation14544.1%49.0%
C48Four knights, Spanish variation40928.4%51.8%
C48Four knights, Spanish, classical defence24032.9%50.2%
C48Four knights, Spielmann variation633.3%50.0%
C49Four knights13835.5%51.1%
C49Four knights, Gunsberg counter-attack250.0%75.0%
C49Four knights, Janowski variation2138.1%38.1%
C49Four knights, Nimzovich (Paulsen) variation9043.3%55.0%
C49Four knights, Svenonius variation30.0%66.7%
C49Four knights, double Ruy Lopez42641.1%56.7%
C49Four knights, symmetrical variation57831.0%49.7%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C49Four knights, symmetrical, Capablanca variation3342.4%57.6%
C49Four knights, symmetrical, Maroczy system9440.4%53.2%
C49Four knights, symmetrical, Metger unpin49235.0%52.2%
C49Four knights, symmetrical, Pillsbury variation5026.0%43.0%
C49Four knights, symmetrical, Tarrasch variation540.0%60.0%
C50Giuoco Pianissimo339331.9%51.6%
C50Giuoco Pianissimo, Canal variation25431.5%51.2%
C50Giuoco Pianissimo, Italian four knights variation61330.0%55.5%
C50Giuoco Piano477332.3%51.6%
C50Giuoco Piano, four knights variation15227.6%50.0%
C50Hungarian defence17637.5%52.8%
C50King's pawn game48923.3%54.8%
C50Rousseau gambit70.0%71.4%
C51Evans counter-gambit50.0%40.0%
C51Evans gambit1618.8%28.1%
C51Evans gambit declined4434.1%48.9%
C51Evans gambit declined, 5.a411628.4%48.7%
C51Evans gambit declined, Cordel variation1428.6%28.6%
C51Evans gambit declined, Showalter variation2733.3%46.3%
C51Evans gambit, 5...Be71540.0%46.7%
C51Evans gambit, Cordel variation26230.9%49.8%
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 variation6720.9%46.3%
C51Evans gambit, normal variation1435.7%46.4%
C52Evans gambit36224.6%39.4%
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 attack19928.1%48.7%
C52Evans gambit, Waller attack616.7%41.7%
C52Evans gambit, compromised defence4314.0%53.5%
C52Evans gambit, compromised defence, Paulsen variation1625.0%68.8%
C53Giuoco Piano915330.0%52.4%
C53Giuoco Piano, Anderssen variation9040.0%52.2%
C53Giuoco Piano, Bird's attack16228.4%50.6%
C53Giuoco Piano, LaBourdonnais variation2544.0%66.0%
C53Giuoco Piano, Mestel variation616.7%58.3%
C53Giuoco Piano, Tarrasch variation425.0%62.5%
C53Giuoco Piano, centre-holding variation4719.1%56.4%
C53Giuoco Piano, close variation10524.8%53.3%
C54Giuoco Piano25728.8%54.5%
C54Giuoco Piano, Cracow variation10.0%100.0%
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 defence21429.0%48.6%
C55Two knights defence (Modern bishop's opening)160330.4%55.5%
C55Two knights defence, Keidanz variation1100.0%50.0%
C55Two knights defence, Perreux variation4032.5%51.3%
C55Two knights, Max Lange attack19023.7%48.2%
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 variation19727.4%51.8%
C55Two knights, Max Lange attack, Steinitz variation1020.0%60.0%
C56Two knights defence8434.5%51.8%
C56Two knights defence, Canal variation2748.1%42.6%
C57Two knights defence7922.8%38.0%
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 variation2416.7%62.5%
C57Two knights defence, Fritz, Gruber variation1833.3%55.6%
C57Two knights defence, Lolli attack6021.7%64.2%
C57Two knights defence, Pincus variation6339.7%59.5%
C57Two knights defence, Ulvestad variation5825.9%54.3%
C57Two knights defence, Wilkes Barre (Traxler) variation9419.1%60.6%
C58Two knights defence48927.0%56.0%
C58Two knights defence, Blackburne variation450.0%75.0%
C58Two knights defence, Bogolyubov variation10420.2%59.1%
C58Two knights defence, Colman variation119.1%77.3%
C58Two knights defence, Kieseritsky variation4030.0%55.0%
C58Two knights defence, Paoli variation1513.3%66.7%
C58Two knights defence, Yankovich variation540.0%40.0%
C59Two knights defence19026.3%48.4%
C59Two knights defence, Goering variation20.0%50.0%
C59Two knights defence, Knorre variation1100.0%50.0%
C59Two knights defence, Steinitz variation24425.8%55.9%
C60Ruy Lopez (Spanish opening)23027.8%51.3%
C60Ruy Lopez, Brentano defence616.7%58.3%
C60Ruy Lopez, Cozio defence80230.0%58.2%
C60Ruy Lopez, Cozio defence, Paulsen variation4942.9%54.1%
C60Ruy Lopez, Lucena defence2825.0%48.2%
C60Ruy Lopez, Nuernberg variation2646.2%42.3%
C60Ruy Lopez, Vinogradov variation933.3%50.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence66934.7%54.1%
C61Ruy Lopez, Bird's defence60530.2%56.0%
C61Ruy Lopez, Bird's defence, Paulsen variation1827.8%47.2%
C62Ruy Lopez, old Steinitz defence83027.7%55.7%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack2817.9%69.6%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation1127.3%59.1%
C63Ruy Lopez, Schliemann defence62729.2%57.2%
C63Ruy Lopez, Schliemann defence, Berger variation98333.1%55.3%
C64Ruy Lopez, Cordel gambit8823.9%60.8%
C64Ruy Lopez, classical (Cordel) defence92032.9%52.9%
C64Ruy Lopez, classical defence, 4.c351427.8%54.2%
C64Ruy Lopez, classical defence, Benelux variation 63333.6%50.8%
C64Ruy Lopez, classical defence, Boden variation2100.0%50.0%
C64Ruy Lopez, classical defence, Charousek variation3125.8%61.3%
C64Ruy Lopez, classical defence, Zaitsev variation825.0%37.5%
C65Ruy Lopez, Berlin defence785231.7%51.5%
C65Ruy Lopez, Berlin defence, 4.O-O34333.5%62.2%
C65Ruy Lopez, Berlin defence, Anderssen variation1040.0%20.0%
C65Ruy Lopez, Berlin defence, Beverwijk variation66929.9%54.6%
C65Ruy Lopez, Berlin defence, Duras variation3737.8%48.6%
C65Ruy Lopez, Berlin defence, Kaufmann variation1225.0%45.8%
C65Ruy Lopez, Berlin defence, Mortimer variation2718.5%61.1%
C65Ruy Lopez, Berlin defence, Nyholm attack9435.1%52.7%
C66Ruy Lopez, Berlin defence, 4.O-O, d613438.8%56.0%
C66Ruy Lopez, Berlin defence, hedgehog variation17439.7%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 variation15937.1%56.9%
C67Ruy Lopez, Berlin defence, Cordel variation6643.9%55.3%
C67Ruy Lopez, Berlin defence, Minckwitz variation6541.5%63.8%
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 variation6342.9%56.3%
C67Ruy Lopez, Berlin defence, Trifunovic variation30.0%100.0%
C67Ruy Lopez, Berlin defence, Winawer attack1172.7%45.5%
C67Ruy Lopez, Berlin defence, Zukertort variation1947.4%50.0%
C67Ruy Lopez, Berlin defence, open variation1201436.7%53.0%
C67Ruy Lopez, open Berlin defence, 5...Be713635.3%55.9%
C67Ruy Lopez, open Berlin defence, Showalter variation633.3%66.7%
C67Ruy Lopez, open Berlin defence, l'Hermet variation10836.1%44.0%
C68Ruy Lopez, exchange variation67731.3%54.2%
C68Ruy Lopez, exchange, Alekhine variation20852.9%44.7%
C68Ruy Lopez, exchange, Keres variation33236.4%51.1%
C68Ruy Lopez, exchange, Romanovsky variation2128.6%57.1%
C69Ruy Lopez, exchange variation, 5.O-O91731.0%54.9%
C69Ruy Lopez, exchange variation, Alapin gambit16531.5%53.3%
C69Ruy Lopez, exchange, Bronstein variation60630.0%51.3%
C69Ruy Lopez, exchange, Gligoric variation65835.1%53.9%
C70Ruy Lopez32134.3%51.4%
C70Ruy Lopez, Alapin's defence deferred70.0%42.9%
C70Ruy Lopez, Caro variation18036.1%57.5%
C70Ruy Lopez, Classical defence deferred55827.1%52.2%
C70Ruy Lopez, Cozio defence deferred53531.6%53.9%
C70Ruy Lopez, Graz variation1136.4%54.5%
C70Ruy Lopez, Schliemann defence deferred7027.1%50.7%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation26226.7%55.0%
C70Ruy Lopez, fianchetto defence deferred4936.7%57.1%
C71Ruy Lopez, modern Steinitz defence16727.5%52.7%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation24330.0%52.1%
C71Ruy Lopez, modern Steinitz defence, Three knights variation2825.0%58.9%
C72Ruy Lopez, modern Steinitz defence, 5.O-O61330.3%56.0%
C73Ruy Lopez, modern Steinitz defence, Alapin variation33627.1%54.6%
C73Ruy Lopez, modern Steinitz defence, Richter variation25332.4%50.6%
C74Ruy Lopez, Siesta, Kopayev variation15827.8%54.4%
C74Ruy Lopez, modern Steinitz defence9534.7%56.3%
C74Ruy Lopez, modern Steinitz defence, siesta variation8028.8%41.9%
C75Ruy Lopez, modern Steinitz defence37327.6%58.8%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation15133.1%59.6%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation66828.4%50.9%
C77Ruy Lopez, Anderssen variation183931.4%50.2%
C77Ruy Lopez, Morphy defence42233.6%54.5%
C77Ruy Lopez, Morphy defence, Duras variation11531.3%47.8%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)21130.3%52.1%
C77Ruy Lopez, Wormald (Alapin) attack71433.2%50.8%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C77Ruy Lopez, four knights (Tarrasch) variation32630.7%56.1%
C78Ruy Lopez, ...b5 & ...d610726.2%47.7%
C78Ruy Lopez, 5.O-O422233.5%54.9%
C78Ruy Lopez, Archangelsk (counterthrust) variation498230.7%54.2%
C78Ruy Lopez, Moeller defence92530.5%52.9%
C78Ruy Lopez, Rabinovich variation10.0%100.0%
C78Ruy Lopez, Wing attack2441.7%62.5%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)40033.3%52.4%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1942.1%47.4%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1520.0%70.0%
C80Ruy Lopez, open (Tarrasch) defence13339.1%48.9%
C80Ruy Lopez, open, 6.d44928.6%59.2%
C80Ruy Lopez, open, 6.d4 b510.0%100.0%
C80Ruy Lopez, open, 7.Bb359531.9%52.8%
C80Ruy Lopez, open, 8...Be6169232.6%46.1%
C80Ruy Lopez, open, 8.de2020.0%55.0%
C80Ruy Lopez, open, Berger variation666.7%33.3%
C80Ruy Lopez, open, Bernstein variation125539.0%59.3%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit1163.6%68.2%
C80Ruy Lopez, open, Friess attack944.4%33.3%
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 defence2536.0%30.0%
C80Ruy Lopez, open, Tartakower variation1637.5%56.3%
C80Ruy Lopez, open, Zukertort variation714.3%50.0%
C81Ruy Lopez, open, Howell attack12540.0%60.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1752.9%61.8%
C82Ruy Lopez, open, 9.c31020.0%70.0%
C82Ruy Lopez, open, Berlin variation2236.4%59.1%
C82Ruy Lopez, open, Dilworth variation14334.3%50.0%
C82Ruy Lopez, open, Italian variation11137.8%62.2%
C82Ruy Lopez, open, Motzko attack9939.4%56.1%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation850.0%37.5%
C82Ruy Lopez, open, St. Petersburg variation35337.7%59.3%
C83Ruy Lopez, open, 9...Be7, 10.Re12532.0%52.0%
C83Ruy Lopez, open, Breslau variation728.6%71.4%
C83Ruy Lopez, open, Malkin variation1428.6%71.4%
C83Ruy Lopez, open, classical defence25738.5%57.8%
C84Ruy Lopez, closed defence156032.6%51.1%
C84Ruy Lopez, closed, centre attack23931.0%49.8%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)198631.6%52.8%
C86Ruy Lopez, Worrall attack10727.1%58.4%
C86Ruy Lopez, Worrall attack, sharp line30132.9%49.7%
C86Ruy Lopez, Worrall attack, solid line27431.8%50.5%
C87Ruy Lopez, closed, Averbach variation39630.1%57.2%
C88Ruy Lopez, Noah's ark trap50.0%60.0%
C88Ruy Lopez, Trajkovic counter-attack29726.3%53.5%
C88Ruy Lopez, closed439127.6%48.3%
C88Ruy Lopez, closed, 7...O-O1138131.1%51.8%
C88Ruy Lopez, closed, 7...d6, 8.d413623.5%38.2%
C88Ruy Lopez, closed, 8.c35324.5%53.8%
C88Ruy Lopez, closed, Balla variation2937.9%63.8%
C88Ruy Lopez, closed, anti-Marshall 8.a4186130.6%52.1%
C89Ruy Lopez, Marshall counter-attack532436.1%51.8%
C89Ruy Lopez, Marshall counter-attack, 11...c6157238.6%48.3%
C89Ruy Lopez, Marshall, Herman Steiner variation5111.8%54.9%
C89Ruy Lopez, Marshall, Kevitz variation2630.8%57.7%
C89Ruy Lopez, Marshall, main line, 12.d2d4173128.4%54.5%
C89Ruy Lopez, Marshall, main line, 14...Qh3137941.4%47.6%
C89Ruy Lopez, Marshall, main line, Spassky variation2100.0%50.0%
C90Ruy Lopez, closed (with ...d6)256027.9%49.4%
C90Ruy Lopez, closed, Lutikov variation2948.3%51.7%
C90Ruy Lopez, closed, Pilnik variation331226.2%52.6%
C90Ruy Lopez, closed, Suetin variation6827.9%50.7%
C91Ruy Lopez, closed, 9.d4427127.8%56.2%
C91Ruy Lopez, closed, Bogolyubov variation714933.7%51.9%
C92Ruy Lopez, closed, 9.h358227.3%55.2%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)430933.3%55.0%
C92Ruy Lopez, closed, Keres (9...a5) variation5123.5%58.8%
C92Ruy Lopez, closed, Kholmov variation20127.4%59.0%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation41135.3%64.4%
C93Ruy Lopez, closed, Smyslov defence27533.1%58.4%
C94Ruy Lopez, closed, Breyer defence13943.2%52.5%
C95Ruy Lopez, closed, Breyer, 10.d42100.0%50.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation245930.8%56.1%
C95Ruy Lopez, closed, Breyer, Gligoric variation8420.2%64.9%
C95Ruy Lopez, closed, Breyer, Simagin variation8144.4%61.7%
C96Ruy Lopez, closed (10...c5)138030.0%60.0%
C96Ruy Lopez, closed (8...Na5)5825.9%54.3%
C96Ruy Lopez, closed, Borisenko defence8728.7%59.2%
C96Ruy Lopez, closed, Keres (...Nd7) defence40537.5%60.5%
C96Ruy Lopez, closed, Rossolimo defence616.7%75.0%
C97Ruy Lopez, closed, Chigorin defence187923.3%60.2%
C98Ruy Lopez, closed, Chigorin, 12...Nc628630.4%62.8%
C98Ruy Lopez, closed, Chigorin, Rauzer attack1838.9%52.8%
C99Ruy Lopez, closed, Chigorin, 12...c5d4225434.7%58.8%
D00Blackmar gambit17234.3%45.1%
D00Blackmar-Diemer gambit6322.2%58.7%
D00Blackmar-Diemer, Euwe defence2317.4%47.8%
D00Blackmar-Diemer, Lemberg counter-gambit250.0%75.0%
D00Levitsky attack (Queen's bishop attack)404027.5%50.0%
D00Queen's pawn game476136.0%50.3%
D00Queen's pawn, Anti-Veresov2334.8%60.9%
D00Queen's pawn, Chigorin variation238225.4%52.0%
D00Queen's pawn, Mason variation373829.7%52.0%
D00Queen's pawn, Mason variation, Steinitz counter-gambit121132.2%49.3%
D00Queen's pawn, stonewall attack18030.6%47.5%
D01Richter-Veresov attack231827.9%46.9%
D01Richter-Veresov attack, Richter variation9033.3%44.4%
D01Richter-Veresov attack, Veresov variation8426.2%52.4%
D02Queen's bishop game555431.2%51.9%
D02Queen's pawn game2044330.5%53.3%
D02Queen's pawn game, Chigorin variation243628.0%55.1%
D02Queen's pawn game, Krause variation118633.8%51.4%
D03Torre attack (Tartakower variation)159528.0%50.2%
D04Queen's pawn game449334.6%52.4%
D05Colle system125232.8%51.8%
D05Queen's pawn game367132.5%52.9%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation125034.1%55.0%
D05Queen's pawn game, Zukertort variation11037.3%53.2%
D06QGD, Grau (Sahovic) defence335325.0%56.9%
D06QGD, Marshall defence49830.7%58.9%
D06QGD, symmetrical (Austrian) defence24231.4%57.0%
D06Queen's Gambit2119.0%57.1%
D07QGD, Chigorin defence379527.7%57.3%
D07QGD, Chigorin defence, Janowski variation115524.6%60.4%
D08QGD, Albin counter-gambit42331.0%51.4%
D08QGD, Albin counter-gambit, Alapin variation5038.0%53.0%
D08QGD, Albin counter-gambit, Balogh variation520.0%30.0%
D08QGD, Albin counter-gambit, Janowski variation30.0%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.g316533.3%57.3%
D10QGD Slav defence726131.9%54.3%
D10QGD Slav defence, Alekhine variation77620.9%55.9%
D10QGD Slav defence, exchange variation556435.5%53.1%
D10QGD Slav, Winawer counter-gambit40131.4%54.4%
D11QGD Slav, 3.Nf3844731.4%54.8%
D11QGD Slav, 4.e3865430.7%56.0%
D11QGD Slav, Breyer variation35930.1%55.2%
D12QGD Slav, 4.e3 Bf51333730.4%54.8%
D12QGD Slav, Amsterdam variation7636.8%48.7%
D12QGD Slav, Landau variation1100.0%50.0%
D12QGD Slav, exchange variation54727.6%52.4%
D13QGD Slav, exchange variation161133.7%53.5%
D14QGD Slav, exchange variation, 6.Bf4 Bf5107032.3%51.1%
D14QGD Slav, exchange, Trifunovic variation32344.6%51.1%
D15QGD Slav accepted54027.8%51.3%
D15QGD Slav, 4.Nc3532230.3%53.6%
D15QGD Slav, 5.e3 (Alekhine variation)53024.7%48.8%
D15QGD Slav, Schlechter variation43930.3%57.3%
D15QGD Slav, Slav gambit68025.9%50.4%
D15QGD Slav, Suechting variation11322.1%53.5%
D15QGD Slav, Tolush-Geller gambit43624.8%45.4%
D16QGD Slav accepted, Alapin variation39823.9%70.2%
D16QGD Slav, Smyslov variation18822.9%59.8%
D16QGD Slav, Soultanbeieff variation32639.3%58.3%
D16QGD Slav, Steiner variation58025.0%59.6%
D17QGD Slav, Carlsbad variation86130.8%54.1%
D17QGD Slav, Czech defence97435.7%53.8%
D17QGD Slav, Krause attack95028.0%57.6%
D17QGD Slav, Wiesbaden variation81928.9%59.6%
D18QGD Slav, Dutch variation126135.8%57.3%
D18QGD Slav, Dutch, Lasker variation3925.6%66.7%
D19QGD Slav, Dutch variation320230.2%56.3%
D19QGD Slav, Dutch variation, main line67537.0%53.0%
D20QGA, 3.e4515029.1%56.1%
D20QGA, Linares variation7727.3%55.2%
D20QGA, Schwartz defence2100.0%50.0%
D20Queen's gambit accepted268530.3%55.3%
D21QGA, 3.Nf3185026.2%54.9%
D21QGA, Alekhine defense, Borisenko-Furman variation6232.3%38.7%
D21QGA, Ericson variation3441.2%52.9%
D22QGA, Alekhine defence73830.2%57.9%
D22QGA, Alekhine defence, Alatortsev variation1145.5%68.2%
D22QGA, Haberditz variation51932.2%58.3%
D23QGA, Mannheim variation93833.3%54.3%
D23Queen's gambit accepted22732.2%49.6%
D24QGA, 4.Nc337431.3%53.9%
D24QGA, Bogolyubov variation48918.8%46.2%
D25QGA, 4.e365530.5%57.7%
D25QGA, Flohr variation17827.0%64.0%
D25QGA, Janowsky-Larsen variation105728.1%56.7%
D25QGA, Smyslov variation21232.1%57.5%
D26QGA, 4...e6103133.7%53.0%
D26QGA, classical variation151134.3%54.1%
D26QGA, classical variation, 6.O-O54235.6%57.7%
D26QGA, classical, Furman variation560.0%50.0%
D26QGA, classical, Steinitz variation21047.1%59.8%
D27QGA, classical, 6...a6718338.6%54.3%
D27QGA, classical, Geller variation8833.0%42.6%
D27QGA, classical, Rubinstein variation551136.1%55.7%
D28QGA, classical, 7...b534936.4%54.9%
D28QGA, classical, 7.Qe222637.6%55.1%
D29QGA, classical, 8...Bb781032.0%47.7%
D29QGA, classical, Smyslov variation9929.3%54.0%
D30QGD434233.9%53.0%
D30QGD Slav182935.8%54.7%
D30QGD Slav, Semmering variation49637.5%53.8%
D30QGD, Capablanca variation7022.9%48.6%
D30QGD, Capablanca-Duras variation86928.5%52.1%
D30QGD, Hastings variation80735.8%50.2%
D30QGD, Spielmann variation633.3%83.3%
D30QGD, Stonewall variation333.3%83.3%
D30QGD, Vienna variation197937.8%55.5%
D30Queen's gambit declined931232.4%53.8%
D31QGD, 3.Nc3156628.5%54.3%
D31QGD, Alapin variation5016.0%42.0%
D31QGD, Charousek (Petrosian) variation391729.0%53.8%
D31QGD, Janowski variation32438.0%56.6%
D31QGD, semi-Slav157031.1%53.3%
D31QGD, semi-Slav, Abrahams variation178429.5%47.4%
D31QGD, semi-Slav, Junge variation4827.1%63.5%
D31QGD, semi-Slav, Koomen variation1060.0%50.0%
D31QGD, semi-Slav, Marshall gambit481329.2%55.7%
D31QGD, semi-Slav, Noteboom variation96328.9%52.4%
D32QGD, Tarrasch defence55032.5%54.1%
D32QGD, Tarrasch defence, 4.cd ed5930.5%47.5%
D32QGD, Tarrasch defence, Marshall gambit2733.3%53.7%
D32QGD, Tarrasch defence, Tarrasch gambit728.6%42.9%
D32QGD, Tarrasch, von Hennig-Schara gambit10630.2%56.6%
D33QGD, Tarrasch, Folkestone (Swedish) variation7837.2%55.8%
D33QGD, Tarrasch, Prague variation16135.4%57.5%
D33QGD, Tarrasch, Schlechter-Rubinstein system1921.1%52.6%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%75.0%
D33QGD, Tarrasch, Wagner variation3125.8%64.5%
D34QGD, Tarrasch, Bogolyubov variation1136.4%36.4%
D34QGD, Tarrasch, Prague variation, 7...Be789336.5%57.0%
D34QGD, Tarrasch, Prague variation, 9.Bg5253636.1%55.7%
D34QGD, Tarrasch, Prague variation, Normal position196137.2%57.6%
D34QGD, Tarrasch, Reti variation7439.2%56.1%
D34QGD, Tarrasch, Stoltz variation333.3%83.3%
D35QGD, 3...Nf623232.3%43.3%
D35QGD, Harrwitz attack17237.2%52.3%
D35QGD, exchange variation41832.5%55.3%
D35QGD, exchange, Saemisch variation33028.8%53.2%
D35QGD, exchange, chameleon variation1827.8%63.9%
D35QGD, exchange, positional line367330.2%53.8%
D35QGD, exchange, positional line, 5...c6243229.9%55.3%
D36QGD, exchange, positional line, 6.Qc259434.2%52.3%
D37QGD, 4.Nf3779933.2%53.4%
D37QGD, classical variation (5.Bf4)1069034.3%53.9%
D38QGD, Ragozin variation1131833.3%54.3%
D39QGD, Ragozin, Vienna variation178236.9%50.5%
D40QGD, Semi-Tarrasch defence106434.3%51.2%
D40QGD, Semi-Tarrasch defence, Pillsbury variation8852.3%50.0%
D40QGD, Semi-Tarrasch, symmetrical variation10733.6%47.7%
D41QGD, Semi-Tarrasch with e337236.8%55.0%
D41QGD, Semi-Tarrasch, 5.cd127638.9%57.0%
D41QGD, Semi-Tarrasch, Kmoch variation5457.4%62.0%
D41QGD, Semi-Tarrasch, San Sebastian variation8124.7%69.1%
D42QGD, Semi-Tarrasch, 7.Bd387036.1%57.6%
D43QGD semi-Slav3138831.1%54.2%
D43QGD semi-Slav, Hastings variation825.0%25.0%
D44QGD semi-Slav, 5.Bg5 dc61632.5%48.4%
D44QGD semi-Slav, Botvinnik system (anti-Meran)45125.5%49.1%
D44QGD semi-Slav, Ekstrom variation5521.8%40.0%
D44QGD semi-Slav, anti-Meran gambit254627.7%59.4%
D44QGD semi-Slav, anti-Meran, Alatortsev system5111.8%60.8%
D44QGD semi-Slav, anti-Meran, Lilienthal variation52523.8%58.8%
D44QGD semi-Slav, anti-Meran, Szabo variation24521.2%39.2%
D45QGD semi-Slav, 5...Nd7170329.4%51.8%
D45QGD semi-Slav, 5.e3169729.5%56.6%
D45QGD semi-Slav, Rubinstein (anti-Meran) system3135.5%59.7%
D45QGD semi-Slav, Stoltz variation5142432.7%52.8%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)531234.8%54.4%
D45QGD semi-Slav, stonewall defence3119.4%61.3%
D46QGD semi-Slav, 6.Bd312727.6%54.7%
D46QGD semi-Slav, Bogolyubov variation48031.0%57.0%
D46QGD semi-Slav, Chigorin defence95333.6%54.0%
D46QGD semi-Slav, Romih variation25327.3%65.0%
D47QGD semi-Slav, 7.Bc493127.4%58.1%
D47QGD semi-Slav, Meran variation357532.6%52.9%
D47QGD semi-Slav, Meran, Wade variation2624531.1%52.9%
D47QGD semi-Slav, neo-Meran (Lundin variation)79631.4%56.5%
D48QGD semi-Slav, Meran46723.8%47.6%
D48QGD semi-Slav, Meran, 8...a6952233.9%49.2%
D48QGD semi-Slav, Meran, Pirc variation7237.5%57.6%
D48QGD semi-Slav, Meran, Reynolds' variation199833.4%57.1%
D48QGD semi-Slav, Meran, old main line25537.3%54.3%
D49QGD semi-Slav, Meran, Blumenfeld variation87134.4%53.0%
D49QGD semi-Slav, Meran, Rabinovich variation12040.8%60.4%
D49QGD semi-Slav, Meran, Rellstab attack4136.6%50.0%
D49QGD semi-Slav, Meran, Sozin variation45440.3%49.2%
D49QGD semi-Slav, Meran, Stahlberg variation10235.3%52.0%
D50QGD, 4.Bg547032.1%56.5%
D50QGD, Been-Koomen variation2425.0%45.8%
D50QGD, Canal (Venice) variation520.0%50.0%
D50QGD, Semi-Tarrasch4645.7%59.8%
D50QGD, Semi-Tarrasch, Krause variation666.7%33.3%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation3026.7%36.7%
D51QGD5016.0%62.0%
D51QGD, 4.Bg5 Nbd714130.5%55.7%
D51QGD, 5...c610631.1%58.0%
D51QGD, Alekhine variation1421.4%53.6%
D51QGD, Capablanca anti-Cambridge Springs variation2025.0%57.5%
D51QGD, Manhattan variation2828.6%60.7%
D51QGD, Rochlin variation10.0%0.0%
D52QGD68435.8%56.9%
D52QGD, Cambridge Springs defence12345.5%49.6%
D52QGD, Cambridge Springs defence, 7.cd78435.1%59.0%
D52QGD, Cambridge Springs defence, Argentine variation3522.9%48.6%
D52QGD, Cambridge Springs defence, Bogoljubow variation77330.7%54.8%
D52QGD, Cambridge Springs defence, Capablanca variation5541.8%50.0%
D52QGD, Cambridge Springs defence, Rubinstein variation23031.7%55.4%
D52QGD, Cambridge Springs defence, Yugoslav variation194729.0%58.8%
D53QGD, 4.Bg5 Be7121334.5%54.8%
D53QGD, 4.Bg5 Be7, 5.e3 O-O5442.6%54.6%
D53QGD, Lasker variation1513.3%66.7%
D54QGD, Anti-neo-orthodox variation11122.5%52.7%
D55QGD, 6.Nf341433.1%57.6%
D55QGD, Neo-orthodox variation3348.5%60.6%
D55QGD, Neo-orthodox variation, 7.Bh464235.2%54.0%
D55QGD, Neo-orthodox variation, 7.Bxf635738.1%51.5%
D55QGD, Petrosian variation51141.3%52.7%
D55QGD, Pillsbury attack30.0%33.3%
D56QGD, Lasker defence65231.3%52.5%
D56QGD, Lasker defence, Teichmann variation16335.0%59.8%
D57QGD, Lasker defence, Bernstein variation3135.5%50.0%
D57QGD, Lasker defence, main line8535.3%60.0%
D58QGD, Tartakower (Makagonov-Bondarevsky) system1535133.9%52.7%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd575041.9%51.7%
D59QGD, Tartakower variation26749.4%41.9%
D60QGD, Orthodox defence40631.3%57.8%
D60QGD, Orthodox defence, Botvinnik variation25436.6%52.6%
D60QGD, Orthodox defence, Rauzer variation2927.6%58.6%
D61QGD, Orthodox defence, Rubinstein variation57130.8%53.9%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)28942.2%50.2%
D63QGD, Orthodox defence13525.9%57.4%
D63QGD, Orthodox defence, 7.Rc136734.6%54.4%
D63QGD, Orthodox defence, Capablanca variation60.0%66.7%
D63QGD, Orthodox defence, Pillsbury attack2744.4%40.7%
D63QGD, Orthodox defence, Swiss (Henneberger) variation22228.8%50.9%
D63QGD, Orthodox defence, Swiss, Karlsbad variation31928.5%52.5%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)22441.5%56.9%
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 variation3737.8%56.8%
D65QGD, Orthodox defence, Rubinstein attack, main line2433.3%41.7%
D66QGD, Orthodox defence, Bd3 line44431.8%56.2%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation3727.0%64.9%
D67QGD, Orthodox defence, Bd3 line11143.2%50.5%
D67QGD, Orthodox defence, Bd3 line, 11.O-O24630.1%60.6%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation12947.3%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 variation16436.6%55.5%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)862.5%68.8%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)11338.1%58.8%
D69QGD, Orthodox defence, classical, 13.de5560.0%48.2%
D70Neo-Gruenfeld (Kemeri) defence34140.8%55.6%
D70Neo-Gruenfeld defence110322.0%49.5%
D71Neo-Gruenfeld, 5.cd30838.6%57.6%
D72Neo-Gruenfeld, 5.cd, main line53829.2%54.4%
D73Neo-Gruenfeld, 5.Nf3137740.3%53.1%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O93834.5%59.0%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc379843.9%54.5%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc5438.9%60.2%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6246837.2%56.4%
D77Neo-Gruenfeld, 6.O-O328036.5%54.8%
D78Neo-Gruenfeld, 6.O-O c6347935.6%53.7%
D79Neo-Gruenfeld, 6.O-O, main line172341.2%53.1%
D80Gruenfeld defence110739.0%53.5%
D80Gruenfeld, Stockholm variation81034.0%50.6%
D81Gruenfeld, Russian variation51733.8%55.4%
D82Gruenfeld, 4.Bf474032.2%52.3%
D83Gruenfeld, Gruenfeld gambit8731.0%51.1%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation2759.3%48.1%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation12947.3%57.0%
D84Gruenfeld, Gruenfeld gambit accepted9727.8%65.5%
D85Gruenfeld, exchange variation372536.4%53.3%
D85Gruenfeld, modern exchange variation981537.1%53.7%
D86Gruenfeld, exchange, Larsen variation2330.4%63.0%
D86Gruenfeld, exchange, Simagin's improved variation17031.8%55.3%
D86Gruenfeld, exchange, Simagin's lesser variation7234.7%63.2%
D86Gruenfeld, exchange, classical variation180133.9%54.8%
D87Gruenfeld, exchange, Seville variation26138.3%64.8%
D87Gruenfeld, exchange, Spassky variation105436.1%57.9%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd42740.7%53.2%
D89Gruenfeld, Spassky variation, main line, 13.Bd314034.3%55.0%
D89Gruenfeld, exchange, Sokolsky variation7032.9%37.9%
D90Gruenfeld, Flohr variation39236.0%48.6%
D90Gruenfeld, Schlechter variation10041.0%63.5%
D90Gruenfeld, Three knights variation83435.5%54.0%
D91Gruenfeld, 5.Bg5226131.9%49.9%
D92Gruenfeld, 5.Bf4141235.3%55.3%
D93Gruenfeld with Bf4 e3108036.8%53.3%
D94Gruenfeld with e3 Bd33138.7%58.1%
D94Gruenfeld, 5.e379635.3%57.7%
D94Gruenfeld, Flohr defence7129.6%54.2%
D94Gruenfeld, Makogonov variation25832.2%49.8%
D94Gruenfeld, Opovcensky variation22338.1%49.6%
D94Gruenfeld, Smyslov defence35137.0%52.1%
D95Gruenfeld with e3 & Qb37737.7%48.7%
D95Gruenfeld, Botvinnik variation12532.8%44.4%
D96Gruenfeld, Russian variation56231.0%53.4%
D97Gruenfeld, Russian variation with e47532.0%50.7%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation506633.1%51.5%
D97Gruenfeld, Russian, Byrne (Simagin) variation36526.6%50.0%
D97Gruenfeld, Russian, Levenfish variation2119.0%57.1%
D97Gruenfeld, Russian, Prins variation148234.3%55.3%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation36129.6%60.5%
D98Gruenfeld, Russian, Keres variation1323.1%73.1%
D98Gruenfeld, Russian, Smyslov variation64929.6%54.7%
D99Gruenfeld defence, Smyslov, Yugoslav variation5149.0%59.8%
D99Gruenfeld defence, Smyslov, main line40731.0%61.9%
E00Catalan opening868132.4%54.0%
E00Neo-Indian (Seirawan) attack70025.7%49.1%
E00Queen's pawn game172629.6%54.7%
E01Catalan, closed78034.7%53.1%
E02Catalan, open, 5.Qa413438.1%57.8%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc44944.9%55.1%
E03Catalan, open, Alekhine variation175.9%44.1%
E04Catalan, open, 5.Nf31577634.1%53.9%
E05Catalan, open, classical line59731.2%55.6%
E06Catalan, closed, 5.Nf31060438.0%54.4%
E07Catalan, closed, 6...Nbd720829.3%51.7%
E07Catalan, closed, Botvinnik variation18329.0%59.3%
E08Catalan, closed, 7.Qc226131.4%54.0%
E08Catalan, closed, Qc2 & b353628.7%53.7%
E08Catalan, closed, Spassky gambit3020.0%63.3%
E08Catalan, closed, Zagoryansky variation450.0%75.0%
E09Catalan, closed, Sokolsky variation540.0%60.0%
E09Catalan, closed, main line96031.3%57.6%
E10Blumenfeld counter-gambit15530.3%55.2%
E10Blumenfeld counter-gambit accepted21224.1%54.0%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation44627.4%56.7%
E10Blumenfeld counter-gambit, Spielmann variation15518.1%56.1%
E10Doery defence15026.0%47.0%
E10Dzindzikhashvili defence28628.3%57.5%
E10Queen's pawn game1007233.5%54.5%
E11Bogo-Indian defence431233.6%55.2%
E11Bogo-Indian defence, Gruenfeld variation449932.5%55.7%
E11Bogo-Indian defence, Monticelli trap3125.8%58.1%
E11Bogo-Indian defence, Nimzovich variation339530.4%57.0%
E12Queen's Indian defence63529.3%50.9%
E12Queen's Indian, 4.Nc3787329.1%52.6%
E12Queen's Indian, 4.Nc3, Botvinnik variation11629.3%50.0%
E12Queen's Indian, Miles variation173131.6%53.4%
E12Queen's Indian, Petrosian system1290732.6%53.5%
E13Queen's Indian, 4.Nc3, main line38325.3%55.5%
E14Queen's Indian, 4.e3342631.1%52.4%
E14Queen's Indian, Averbakh variation1533.3%36.7%
E15Queen's Indian, 4.g3232441.0%54.8%
E15Queen's Indian, 4.g3 Bb738930.6%55.7%
E15Queen's Indian, Buerger variation7324.7%50.7%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)3908230.9%55.1%
E15Queen's Indian, Rubinstein variation16922.5%53.3%
E16Queen's Indian, Capablanca variation57038.2%57.4%
E16Queen's Indian, Riumin variation50535.2%55.6%
E16Queen's Indian, Yates variation109532.0%59.4%
E17Queen's Indian, 5.Bg2 Be711332.7%50.9%
E17Queen's Indian, Euwe variation11435.1%58.8%
E17Queen's Indian, Opovcensky variation171729.1%58.7%
E17Queen's Indian, anti-Queen's Indian system35235.8%56.0%
E17Queen's Indian, old main line, 6.O-O140334.1%56.5%
E18Queen's Indian, old main line, 7.Nc3367133.9%56.5%
E19Queen's Indian, old main line, 9.Qxc3190033.2%55.4%
E20Nimzo-Indian defence34529.6%47.8%
E20Nimzo-Indian, Kmoch variation173126.3%52.9%
E20Nimzo-Indian, Mikenas attack2123.8%31.0%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system103729.2%49.8%
E21Nimzo-Indian, three knights variation501830.1%52.1%
E21Nimzo-Indian, three knights, Euwe variation1553.3%53.3%
E21Nimzo-Indian, three knights, Korchnoi variation4434.1%60.2%
E22Nimzo-Indian, Spielmann variation25632.0%52.7%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc64325.6%45.3%
E23Nimzo-Indian, Spielmann, Karlsbad variation1827.8%36.1%
E23Nimzo-Indian, Spielmann, San Remo variation650.0%58.3%
E24Nimzo-Indian, Saemisch variation25733.1%49.6%
E24Nimzo-Indian, Saemisch, Botvinnik variation4531.1%44.4%
E25Nimzo-Indian, Saemisch variation14835.8%51.0%
E25Nimzo-Indian, Saemisch, Keres variation53730.4%52.8%
E25Nimzo-Indian, Saemisch, Romanovsky variation27837.1%49.8%
E26Nimzo-Indian, Saemisch variation16426.8%48.8%
E26Nimzo-Indian, Saemisch, O'Kelly variation4526.7%40.0%
E27Nimzo-Indian, Saemisch variation6729.9%49.3%
E28Nimzo-Indian, Saemisch variation12532.0%52.8%
E29Nimzo-Indian, Saemisch, Capablanca variation13139.7%51.1%
E29Nimzo-Indian, Saemisch, main line14031.4%58.6%
E30Nimzo-Indian, Leningrad variation67532.4%49.9%
E30Nimzo-Indian, Leningrad, ...b5 gambit4045.0%42.5%
E31Nimzo-Indian, Leningrad, main line22322.0%46.0%
E32Nimzo-Indian, classical variation1006832.9%52.6%
E32Nimzo-Indian, classical, Adorjan gambit34128.4%55.6%
E33Nimzo-Indian, classical, 4...Nc623225.9%58.2%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation93526.0%54.0%
E34Nimzo-Indian, classical, Noa variation116637.0%51.6%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed111334.6%49.8%
E36Nimzo-Indian, classical, Botvinnik variation2339.1%54.3%
E36Nimzo-Indian, classical, Noa variation, 5.a377835.2%55.1%
E36Nimzo-Indian, classical, Noa variation, main line137.7%26.9%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc217030.6%61.2%
E37Nimzo-Indian, classical, San Remo variation1241.7%54.2%
E38Nimzo-Indian, classical, 4...c5102332.3%55.6%
E39Nimzo-Indian, classical, Pirc variation151433.1%56.0%
E40Nimzo-Indian, 4.e334729.7%53.5%
E40Nimzo-Indian, 4.e3, Taimanov variation16230.9%53.7%
E41Nimzo-Indian, 4.e3 c599634.1%50.8%
E41Nimzo-Indian, e3, Huebner variation115424.7%50.3%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)222832.5%55.1%
E43Nimzo-Indian, Fischer variation69430.5%53.7%
E44Nimzo-Indian, Fischer variation, 5.Ne2107226.0%56.0%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation82131.2%54.9%
E46Nimzo-Indian, 4.e3 O-O22334.5%52.2%
E46Nimzo-Indian, Reshevsky variation163728.5%52.6%
E46Nimzo-Indian, Simagin variation12029.2%47.9%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd399436.9%55.8%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d576132.2%52.8%
E49Nimzo-Indian, 4.e3, Botvinnik system46730.0%48.4%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d526436.7%59.3%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d541335.8%50.8%
E51Nimzo-Indian, 4.e3, Ragozin variation5947.5%55.9%
E52Nimzo-Indian, 4.e3, main line with ...b6137735.1%52.8%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd713939.6%54.3%
E53Nimzo-Indian, 4.e3, Keres variation16139.1%48.8%
E53Nimzo-Indian, 4.e3, main line with ...c5238037.6%52.9%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc310337.4%54.2%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation7035.7%57.9%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation319835.3%53.4%
E56Nimzo-Indian, 4.e3, main line with 7...Nc6164231.6%54.8%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd3630.6%68.1%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3346830.0%49.3%
E59Nimzo-Indian, 4.e3, main line228230.9%53.7%
E60King's Indian defence266824.7%53.7%
E60King's Indian, 3.Nf3610231.0%55.3%
E60King's Indian, 3.g3334733.4%55.1%
E60King's Indian, 3.g3, counterthrust variation2030.0%50.0%
E60King's Indian, Anti-Gruenfeld22327.4%51.8%
E60King's Indian, Danube gambit2931.0%53.4%
E60Queen's pawn, Mengarini attack14824.3%50.0%
E61King's Indian defence, 3.Nc3187230.1%54.0%
E61King's Indian, Smyslov system17327.2%48.8%
E62King's Indian, fianchetto variation18429.9%53.0%
E62King's Indian, fianchetto with ...Nc636526.3%57.0%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation118729.7%58.9%
E62King's Indian, fianchetto, Larsen system37330.0%52.8%
E62King's Indian, fianchetto, Simagin variation18527.6%66.8%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation55129.9%58.2%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation51824.5%58.2%
E63King's Indian, fianchetto, Panno variation337028.5%57.1%
E64King's Indian, fianchetto, Yugoslav system22525.8%56.0%
E65King's Indian, fianchetto, Yugoslav, 7.O-O28229.8%58.9%
E66King's Indian, fianchetto, Yugoslav Panno60229.1%56.7%
E67King's Indian, fianchetto with ...Nd723629.2%62.1%
E67King's Indian, fianchetto, classical variation110432.5%55.7%
E68King's Indian, fianchetto, classical variation, 8.e4252630.0%58.8%
E69King's Indian, fianchetto, classical main line127330.6%60.0%
E70King's Indian, 4.e4103825.2%55.0%
E70King's Indian, Kramer system29822.8%54.0%
E70King's Indian, accelerated Averbakh system16628.9%51.2%
E71King's Indian, Makagonov system (5.h3)122026.6%55.6%
E72King's Indian with e4 & g36929.0%53.6%
E72King's Indian, Pomar system1553.3%60.0%
E73King's Indian, 5.Be213520.0%50.0%
E73King's Indian, Averbakh system120228.8%53.2%
E73King's Indian, Semi-Averbakh system7726.0%45.5%
E74King's Indian, Averbakh, 6...c534725.6%63.0%
E75King's Indian, Averbakh, main line6331.7%49.2%
E76King's Indian, Four pawns attack43932.6%58.4%
E76King's Indian, Four pawns attack, dynamic line20032.0%51.0%
E77King's Indian, Four pawns attack26033.8%53.8%
E77King's Indian, Four pawns attack, 6.Be21233.3%58.3%
E77King's Indian, Four pawns attack, Florentine gambit4129.3%41.5%
E78King's Indian, Four pawns attack, with Be2 and Nf36238.7%48.4%
E79King's Indian, Four pawns attack, main line13044.6%57.7%
E80King's Indian, Saemisch variation79223.4%56.0%
E81King's Indian, Saemisch, 5...O-O281925.2%54.3%
E81King's Indian, Saemisch, Byrne variation9230.4%52.2%
E82King's Indian, Saemisch, double fianchetto variation16729.3%60.2%
E83King's Indian, Saemisch, 6...Nc615119.9%53.6%
E83King's Indian, Saemisch, Panno formation26525.3%52.3%
E83King's Indian, Saemisch, Ruban variation1020.0%50.0%
E84King's Indian, Saemisch, Panno main line96721.3%52.2%
E85King's Indian, Saemisch, orthodox variation8727.6%55.2%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c689726.0%54.9%
E87King's Indian, Saemisch, orthodox, 7.d561120.6%61.9%
E87King's Indian, Saemisch, orthodox, Bronstein variation1127.3%59.1%
E88King's Indian, Saemisch, orthodox, 7.d5 c655730.9%55.7%
E89King's Indian, Saemisch, orthodox main line10726.2%60.7%
E90King's Indian, 5.Nf3137423.3%54.7%
E90King's Indian, Larsen variation14127.0%55.3%
E90King's Indian, Zinnowitz variation11828.8%53.4%
E91King's Indian, 6.Be2104925.3%59.7%
E91King's Indian, Kazakh variation70729.6%57.5%
E92King's Indian, Andersson variation51039.8%53.6%
E92King's Indian, Gligoric-Taimanov system330325.6%58.2%
E92King's Indian, Petrosian system21520.0%56.5%
E92King's Indian, Petrosian system, Stein variation127327.7%53.3%
E92King's Indian, classical variation2326.1%47.8%
E93King's Indian, Petrosian system, Keres variation2828.6%50.0%
E93King's Indian, Petrosian system, main line24224.0%55.4%
E94King's Indian, orthodox variation199131.6%57.2%
E94King's Indian, orthodox, 7...Nbd7269827.2%57.0%
E94King's Indian, orthodox, Donner variation25228.2%55.0%
E95King's Indian, orthodox, 7...Nbd7, 8.Re1100926.7%56.0%
E96King's Indian, orthodox, 7...Nbd7, main line22732.6%59.0%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)933925.6%55.4%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack339929.2%57.8%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1373221.6%59.0%
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 September 19, 2020