CCRL 40/15
Downloads and Statistics
May 24, 2020
Testing summary:
Total: 1'147'168 games
played by 2'661 programs

White wins: 396'304 (34.5%)
Black wins: 293'262 (25.6%)
Draws: 457'602 (39.9%)
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 opening49741.0%50.1%
A00Anti-Borg (Desprez) opening70.0%42.9%
A00Battambang opening2040.0%50.0%
A00Benko's opening959739.9%52.0%
A00Benko's opening, reversed Alekhine12941.9%46.5%
A00Clemenz (Mead's, Basman's or de Klerk's) opening9237.0%47.8%
A00Dunst (Sleipner, Heinrichsen) opening252336.5%50.0%
A00Durkin's attack1030.0%45.0%
A00Gedult's opening1010.0%55.0%
A00Global opening425.0%62.5%
A00Grob's attack19342.5%35.2%
A00Grob, Fritz gambit5343.4%27.4%
A00Grob, Romford counter-gambit425.0%62.5%
A00Grob, spike attack633.3%33.3%
A00Lasker simul special333.3%50.0%
A00Mieses opening32632.2%49.8%
A00Novosibirsk opening2835.7%53.6%
A00Polish (Sokolsky) opening267038.8%48.2%
A00Polish, Outflank variation18941.3%47.1%
A00Saragossa opening45929.2%51.0%
A00Van't Kruijs opening60439.9%50.9%
A00Ware (Meadow Hay) opening2626.9%36.5%
A01Nimzovich-Larsen attack97936.6%51.9%
A01Nimzovich-Larsen attack, Dutch variation4524.4%58.9%
A01Nimzovich-Larsen attack, English variation51334.9%48.8%
A01Nimzovich-Larsen attack, Indian variation63037.1%49.4%
A01Nimzovich-Larsen attack, Polish variation616.7%58.3%
A01Nimzovich-Larsen attack, classical variation211233.7%49.3%
A01Nimzovich-Larsen attack, modern variation429538.3%50.5%
A01Nimzovich-Larsen attack, symmetrical variation86840.1%49.9%
A02Bird's opening413535.9%49.3%
A02Bird's opening, Swiss gambit250.0%75.0%
A02Bird, From gambit27533.1%53.3%
A02Bird, From gambit, Lasker variation3250.0%59.4%
A02Bird, From gambit, Lipke variation10.0%0.0%
A02Bird, Hobbs gambit560.0%70.0%
A03Bird's opening364534.5%47.9%
A03Bird's opening, Lasker variation13229.5%45.8%
A03Bird's opening, Williams gambit5133.3%55.9%
A03Mujannah opening450.0%25.0%
A04Reti opening1155837.2%54.7%
A04Reti v Dutch178832.0%57.2%
A04Reti, Herrstroem gambit20.0%100.0%
A04Reti, Lisitsin gambit deferred4027.5%71.3%
A04Reti, Pirc-Lisitsin gambit15429.9%47.4%
A04Reti, Wade defence20.0%50.0%
A05Reti opening553736.4%52.9%
A05Reti, King's Indian attack179840.4%52.9%
A05Reti, King's Indian attack, Reti-Smyslov variation15232.9%48.7%
A05Reti, King's Indian attack, Spassky's variation65541.1%51.7%
A06Reti opening99637.8%52.7%
A06Reti, Nimzovich-Larsen attack433039.2%49.6%
A06Reti, old Indian attack18630.1%48.4%
A06Santasiere's folly20435.3%46.1%
A06Tennison (Lemberg, Zukertort) gambit4240.5%51.2%
A07Reti, King's Indian attack288141.0%53.1%
A07Reti, King's Indian attack (Barcza system)726740.2%53.5%
A07Reti, King's Indian attack (with ...c5)27035.2%49.8%
A07Reti, King's Indian attack, Keres variation99435.9%54.7%
A07Reti, King's Indian attack, Pachman system18140.3%52.2%
A07Reti, King's Indian attack, Yugoslav variation205840.4%53.1%
A08Reti, King's Indian attack75640.6%52.7%
A08Reti, King's Indian attack, French variation32039.1%49.8%
A09Reti accepted49737.8%52.1%
A09Reti accepted, Keres variation6425.0%64.1%
A09Reti opening97638.0%54.1%
A09Reti, advance variation155535.4%48.5%
A10English opening444336.7%55.0%
A10English, Adorjan defence82537.8%52.5%
A10English, Anglo-Dutch defense114731.9%51.3%
A10English, Jaenisch gambit20.0%100.0%
A11English, Caro-Kann defensive system204239.4%53.2%
A12English, Bled variation2937.9%46.6%
A12English, Capablanca's variation11636.2%48.3%
A12English, Caro-Kann defensive system29534.2%51.4%
A12English, Caro-Kann defensive system, Bogolyubov variation15844.9%54.1%
A12English, London defensive system15642.3%52.6%
A12English, New York (London) defensive system8042.5%45.0%
A12English, Torre defensive system9644.8%52.6%
A13English opening300736.0%52.8%
A13English opening, Agincourt variation191539.1%54.9%
A13English, Kurajica defence16834.5%60.1%
A13English, Neo-Catalan109341.4%52.7%
A13English, Neo-Catalan accepted154647.2%55.8%
A13English, Romanishin gambit40340.9%57.2%
A13English, Wimpey system20744.4%47.3%
A14English, Neo-Catalan declined110843.8%54.6%
A14English, Symmetrical, Keres defence58547.5%57.1%
A15English opening1521543.3%53.7%
A15English, 1...Nf6 (Anglo-Indian defense)177538.5%55.0%
A16English opening184235.0%54.4%
A16English, Anglo-Gruenfeld defense38141.7%55.2%
A16English, Anglo-Gruenfeld defense, Korchnoi variation9837.8%55.6%
A16English, Anglo-Gruenfeld, Czech defense25834.5%59.5%
A16English, Anglo-Gruenfeld, Smyslov defense18534.1%57.6%
A17English opening30137.5%53.0%
A17English, Nimzo-English opening250738.8%53.7%
A17English, Queens Indian formation34036.2%59.3%
A17English, Queens Indian, Romanishin variation10731.8%56.1%
A18English, Mikenas-Carls variation31538.4%57.9%
A18English, Mikenas-Carls, Flohr variation50240.8%58.9%
A18English, Mikenas-Carls, Kevitz variation3234.4%48.4%
A19English, Mikenas-Carls, Sicilian variation69238.7%54.0%
A20English opening889237.8%53.6%
A20English, Nimzovich variation15831.0%55.4%
A20English, Nimzovich, Flohr variation21438.3%48.1%
A21English opening216531.5%55.6%
A21English, Keres variation1421.4%46.4%
A21English, Kramnik-Shirov counterattack304537.6%51.9%
A21English, Smyslov defence6224.2%62.1%
A21English, Troeger defence16925.4%55.9%
A22English opening104835.9%50.7%
A22English, Bellon gambit4727.7%58.5%
A22English, Bremen, Smyslov system198738.6%48.7%
A22English, Bremen, reverse dragon79340.4%51.2%
A22English, Carls' Bremen system58537.8%53.8%
A23English, Bremen system, Keres variation87039.0%50.1%
A24English, Bremen system with ...g624037.5%49.2%
A25English, Sicilian reversed115632.6%53.6%
A25English, closed system88834.9%54.3%
A25English, closed system (without ...d6)13829.0%55.8%
A25English, closed, 5.Rb157739.0%52.6%
A25English, closed, 5.Rb1 Taimanov variation1020.0%60.0%
A25English, closed, Hort variation4429.5%55.7%
A25English, closed, Taimanov variation3218.8%62.5%
A26English, Botvinnik system38336.8%53.1%
A26English, closed system42438.0%51.3%
A27English, three knights system136431.4%52.1%
A28English, Bradley Beach variation7423.0%39.9%
A28English, Nenarokov variation12639.7%50.8%
A28English, four knights system45542.4%52.9%
A28English, four knights, 4.e3136037.8%52.5%
A28English, four knights, Capablanca variation65237.3%53.8%
A28English, four knights, Marini variation113738.9%50.2%
A28English, four knights, Nimzovich variation84535.0%54.2%
A28English, four knights, Romanishin variation56850.4%52.5%
A28English, four knights, Stean variation10140.6%58.9%
A29English, four knights, kingside fianchetto735341.4%52.2%
A30English, symmetrical variation445839.0%54.0%
A30English, symmetrical, hedgehog system302946.9%56.0%
A30English, symmetrical, hedgehog, flexible formation18742.8%54.5%
A31English, symmetrical, Benoni formation144739.4%55.6%
A32English, symmetrical variation75142.9%53.9%
A33English, symmetrical variation203647.3%53.7%
A33English, symmetrical, Geller variation79640.1%53.8%
A34English, symmetrical variation152339.5%54.2%
A34English, symmetrical, Rubinstein system47638.7%52.7%
A34English, symmetrical, three knights system170444.5%54.6%
A35English, symmetrical variation39035.6%49.9%
A35English, symmetrical, four knights system269644.0%53.5%
A36English, symmetrical variation14234.5%51.8%
A36English, symmetrical, Botvinnik system19634.7%49.5%
A36English, symmetrical, Botvinnik system reversed11241.1%53.6%
A36English, ultra-symmetrical variation191037.4%52.4%
A37English, symmetrical variation130040.9%51.1%
A37English, symmetrical, Botvinnik system reversed94838.9%51.7%
A38English, symmetrical variation66144.0%55.0%
A38English, symmetrical, main line with b3366.7%33.3%
A38English, symmetrical, main line with d320243.6%54.0%
A39English, symmetrical, main line with d464742.3%56.3%
A40Beefeater defence5431.5%62.0%
A40Modern defence173535.3%57.0%
A40Polish defence12432.3%57.3%
A40Queen's pawn366534.1%54.9%
A40Queen's pawn, Charlick (Englund) gambit3243.8%59.4%
A40Queen's pawn, English defence46243.9%57.7%
A40Queen's pawn, Franco-Indian (Keres) defence192936.0%56.3%
A40Queen's pawn, Keres defence291842.0%56.1%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence32526.5%56.9%
A41Modern defence15230.9%55.6%
A41Old Indian defence150932.5%53.6%
A41Old Indian, Tartakower (Wade) variation173532.6%58.9%
A41Queen's Pawn293635.1%55.6%
A41Robatsch defence, Rossolimo variation21133.2%52.1%
A42Modern defence, Averbakh system78833.0%58.9%
A42Modern defence, Averbakh system, Kotov variation16927.2%62.1%
A42Modern defence, Averbakh system, Randspringer variation1513.3%66.7%
A42Pterodactyl defence34036.8%63.4%
A43Hawk (Habichd) defence366.7%33.3%
A43Old Benoni defence252333.4%56.9%
A43Old Benoni, Franco-Benoni defence18933.9%62.4%
A43Old Benoni, Mujannah formation8532.9%62.4%
A43Old Benoni, Schmid's system3925.6%59.0%
A43Woozle defence80.0%75.0%
A44Old Benoni defence6729.9%59.7%
A44Semi-Benoni (`blockade variation')42829.7%59.9%
A45Blackmar-Diemer gambit24527.3%52.4%
A45Canard opening1729.4%38.2%
A45Paleface attack4632.6%51.1%
A45Queen's pawn game393836.4%53.5%
A45Queen's pawn, Bronstein gambit1233.3%50.0%
A45Trompovsky attack (Ruth, Opovcensky opening)687034.2%53.3%
A46Queen's pawn game525338.6%54.3%
A46Queen's pawn, Torre attack207635.9%52.1%
A46Queen's pawn, Torre attack, Wagner gambit2330.4%50.0%
A46Queen's pawn, Yusupov-Rubinstein system113740.2%52.4%
A47Queen's Indian defence76737.0%51.2%
A47Queen's Indian, Marienbad system11337.2%52.2%
A47Queen's Indian, Marienbad system, Berg variation2152.4%54.8%
A48King's Indian, East Indian defence134138.5%52.8%
A48King's Indian, London system167938.3%53.5%
A48King's Indian, Torre attack225739.7%50.2%
A49King's Indian, fianchetto without c4165040.1%55.8%
A50Kevitz-Trajkovich defence65233.0%55.9%
A50Queen's Indian accelerated47443.5%56.5%
A50Queen's pawn game114336.5%56.3%
A51Budapest defence declined2944.8%60.3%
A51Budapest, Fajarowicz variation40840.2%56.9%
A51Budapest, Fajarowicz, Steiner variation5036.0%46.0%
A52Budapest defence6836.8%52.2%
A52Budapest, Adler variation40845.3%58.2%
A52Budapest, Alekhine variation2528.0%62.0%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
A52Budapest, Alekhine, Abonyi variation7428.4%61.5%
A52Budapest, Rubinstein variation48942.1%61.3%
A53Old Indian defence146637.2%58.6%
A53Old Indian, Janowski variation21434.6%54.7%
A54Old Indian, Dus-Khotimirsky variation2227.3%40.9%
A54Old Indian, Ukrainian variation19439.2%53.1%
A54Old Indian, Ukrainian variation, 4.Nf344435.8%54.6%
A55Old Indian, main line57535.7%58.2%
A56Benoni defence102233.7%60.1%
A56Benoni defence, Hromodka system62026.1%62.9%
A56Czech Benoni defence40326.8%66.3%
A56Czech Benoni, King's Indian system6520.0%62.3%
A56Vulture defence1100.0%50.0%
A57Benko gambit122034.9%55.8%
A57Benko gambit half accepted114138.7%58.4%
A57Benko gambit, Zaitsev system13434.3%50.7%
A58Benko gambit accepted97835.7%58.1%
A58Benko gambit, Nd2 variation1241.7%62.5%
A58Benko gambit, fianchetto variation17646.6%60.8%
A59Benko gambit5244.2%62.5%
A59Benko gambit, 7.e44438.6%58.0%
A59Benko gambit, Ne2 variation2040.0%50.0%
A59Benko gambit, main line16541.8%68.8%
A60Benoni defence32528.6%56.8%
A61Benoni defence63232.9%61.7%
A61Benoni, Nimzovich (knight's tour) variation57727.9%59.9%
A61Benoni, Uhlmann variation22122.6%40.3%
A61Benoni, fianchetto variation6830.9%59.6%
A62Benoni, fianchetto variation147935.2%55.9%
A63Benoni, fianchetto, 9...Nbd716637.3%65.1%
A64Benoni, fianchetto, 11...Re825240.5%49.6%
A65Benoni, 6.e454333.1%57.6%
A66Benoni, Mikenas variation3517.1%54.3%
A66Benoni, pawn storm variation540.0%60.0%
A67Benoni, Taimanov variation34629.8%63.2%
A68Benoni, four pawns attack12134.7%58.7%
A69Benoni, four pawns attack, main line14839.9%53.7%
A70Benoni, classical with e4 and Nf374239.1%59.0%
A70Benoni, classical without 9.O-O1711.8%52.9%
A71Benoni, classical, 8.Bg516835.1%56.3%
A72Benoni, classical without 9.O-O13844.9%64.5%
A73Benoni, classical, 9.O-O12731.5%58.3%
A74Benoni, classical, 9...a6, 10.a44032.5%63.8%
A75Benoni, classical with ...a6 and 10...Bg414033.6%62.5%
A76Benoni, classical, 9...Re821241.0%63.4%
A77Benoni, classical, 9...Re8, 10.Nd222934.5%62.7%
A78Benoni, classical with ...Re8 and ...Na612732.3%61.0%
A79Benoni, classical, 11.f310331.1%62.1%
A80Dutch345834.5%54.5%
A80Dutch, 2.Bg5 variation174231.6%53.9%
A80Dutch, Korchnoi attack7226.4%49.3%
A80Dutch, Krejcik gambit32132.4%53.6%
A80Dutch, Manhattan (Alapin, Ulvestad) variation5123.5%51.0%
A80Dutch, Spielmann gambit20.0%50.0%
A81Dutch defence465438.0%56.5%
A81Dutch defence, Blackburne variation7829.5%53.2%
A81Dutch, Leningrad, Basman system1250.0%58.3%
A81Dutch, Leningrad, Karlsbad variation1250.0%50.0%
A82Dutch, Balogh defence2646.2%61.5%
A82Dutch, Staunton gambit21935.2%44.5%
A82Dutch, Staunton gambit, Tartakower variation1827.8%58.3%
A83Dutch, Staunton gambit, Alekhine variation540.0%40.0%
A83Dutch, Staunton gambit, Chigorin variation10331.1%53.4%
A83Dutch, Staunton gambit, Lasker variation3336.4%57.6%
A83Dutch, Staunton gambit, Nimzovich variation450.0%25.0%
A83Dutch, Staunton gambit, Staunton's line27139.5%49.6%
A84Dutch defence84636.5%56.4%
A84Dutch defence, Rubinstein variation49132.4%56.9%
A84Dutch, Staunton gambit deferred1145.5%31.8%
A85Dutch with c4 & Nc396232.7%54.6%
A86Dutch with c4 & g317935.2%60.6%
A86Dutch, Hort-Antoshin system1040.0%60.0%
A86Dutch, Leningrad variation30337.6%57.8%
A87Dutch, Leningrad, main variation56339.3%56.0%
A88Dutch, Leningrad, main variation with c6120639.6%58.8%
A89Dutch, Leningrad, main variation with Nc658035.0%62.0%
A90Dutch defence132438.1%60.6%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation30236.1%60.4%
A90Dutch-Indian, Alekhine variation9332.3%58.1%
A91Dutch defence22733.0%52.2%
A92Dutch defence14039.3%61.8%
A92Dutch defence, Alekhine variation5843.1%57.8%
A92Dutch, stonewall variation14740.1%60.9%
A92Dutch, stonewall with Nc33743.2%48.6%
A93Dutch, stonewall, Botwinnik variation28739.0%60.6%
A94Dutch, stonewall with Ba313142.0%56.9%
A95Dutch, stonewall with Nc331432.2%58.4%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
A96Dutch, classical variation54435.3%59.0%
A97Dutch, Ilyin-Genevsky variation16935.5%55.0%
A97Dutch, Ilyin-Genevsky, Winter variation18939.7%63.8%
A98Dutch, Ilyin-Genevsky variation with Qc220729.0%57.5%
A99Dutch, Ilyin-Genevsky variation with b338939.3%60.8%
B00Barnes defence837.5%81.3%
B00Carr's defence450.0%50.0%
B00Corn stalk defence450.0%50.0%
B00Fred80.0%75.0%
B00KP, Colorado counter1241.7%70.8%
B00KP, Nimzovich defence104532.3%58.7%
B00KP, Nimzovich defence, Bogolyubov variation15029.3%60.0%
B00KP, Nimzovich defence, Marshall gambit616.7%25.0%
B00King's pawn opening259433.7%56.6%
B00Lemming defence1233.3%58.3%
B00Owen defence47732.3%60.2%
B00Reversed Grob (Borg/Basman defence/macho Grob)4418.2%70.5%
B00St. George (Baker) defence5133.3%61.8%
B01Scandinavian (centre counter) defence358739.4%57.6%
B01Scandinavian defence151439.7%58.6%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B01Scandinavian defence, Lasker variation13432.8%64.9%
B01Scandinavian gambit20143.8%55.2%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
B01Scandinavian, Icelandic gambit6845.6%56.6%
B01Scandinavian, Kiel variation728.6%85.7%
B01Scandinavian, Marshall variation70043.4%59.4%
B01Scandinavian, Mieses-Kotrvc gambit1353.8%50.0%
B01Scandinavian, Pytel-Wade variation336243.2%57.9%
B01Scandinavian, Richter variation1216.7%66.7%
B02Alekhine's defence77934.1%54.7%
B02Alekhine's defence, Brooklyn defence1526.7%60.0%
B02Alekhine's defence, Kmoch variation1315.4%30.8%
B02Alekhine's defence, Krejcik variation1838.9%47.2%
B02Alekhine's defence, Maroczy variation16535.8%57.9%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation250.0%25.0%
B02Alekhine's defence, Saemisch attack44834.2%49.0%
B02Alekhine's defence, Scandinavian variation49236.6%55.7%
B02Alekhine's defence, Spielmann variation2222.7%47.7%
B02Alekhine's defence, Steiner variation1936.8%50.0%
B02Alekhine's defence, Two pawns' (Lasker's) attack39639.9%52.3%
B02Alekhine's defence, Two pawns' attack, Mikenas variation20.0%0.0%
B02Alekhine's defence, Welling variation1020.0%50.0%
B03Alekhine's defence18337.7%59.3%
B03Alekhine's defence, Balogh variation5236.5%58.7%
B03Alekhine's defence, exchange variation83739.5%59.1%
B03Alekhine's defence, exchange, Karpov variation1464.3%53.6%
B03Alekhine's defence, four pawns attack29432.7%65.3%
B03Alekhine's defence, four pawns attack, 6...Nc62133.3%45.2%
B03Alekhine's defence, four pawns attack, 7.Be316036.3%70.0%
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 variation10332.0%68.4%
B03Alekhine's defence, four pawns attack, fianchetto variation14233.1%61.6%
B04Alekhine's defence, modern variation31636.1%61.1%
B04Alekhine's defence, modern, Keres variation7838.5%67.9%
B04Alekhine's defence, modern, Larsen variation107442.4%59.3%
B04Alekhine's defence, modern, Schmid variation17639.8%60.8%
B04Alekhine's defence, modern, fianchetto variation90137.1%57.4%
B05Alekhine's defence, modern variation, 4...Bg476832.6%64.5%
B05Alekhine's defence, modern, Alekhine variation837.5%43.8%
B05Alekhine's defence, modern, Flohr variation19538.5%60.8%
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) defence893635.3%56.1%
B06Robatsch defence106635.5%58.6%
B06Robatsch defence, Gurgenidze variation9231.5%63.6%
B06Robatsch defence, Pseudo-Austrian attack64935.9%53.7%
B06Robatsch defence, Two knights variation40032.3%60.1%
B06Robatsch defence, Two knights, Suttles variation112037.8%57.9%
B06Robatsch defence, three pawns attack20527.3%60.0%
B07Pirc defence250135.8%56.0%
B07Pirc, 150 attack30838.0%61.5%
B07Pirc, Byrne variation55633.3%56.9%
B07Pirc, Chinese variation650.0%41.7%
B07Pirc, Holmov system7739.0%53.2%
B07Pirc, Sveshnikov system39436.3%52.7%
B07Pirc, Ufimtsev-Pytel variation66334.1%57.8%
B07Pirc, bayonet (Mariotti) attack5143.1%56.9%
B07Robatsch defence, Geller's system74036.8%56.9%
B08Pirc, classical (two knights) system90337.4%58.5%
B08Pirc, classical system, 5.Be2298938.9%58.1%
B08Pirc, classical, h3 system53938.2%59.0%
B09Pirc, Austrian attack22439.3%60.7%
B09Pirc, Austrian attack, 6.Bd3150740.1%60.1%
B09Pirc, Austrian attack, 6.Be340232.8%57.0%
B09Pirc, Austrian attack, 6.e513138.9%56.1%
B09Pirc, Austrian attack, Ljubojevic variation3330.3%48.5%
B09Pirc, Austrian attack, dragon formation88839.4%57.9%
B10Caro-Kann defence306835.0%52.5%
B10Caro-Kann, Goldman (Spielmann) variation14436.1%51.4%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B10Caro-Kann, Two knights variation73636.3%57.5%
B10Caro-Kann, anti-Caro-Kann defence79131.4%59.8%
B10Caro-Kann, anti-anti-Caro-Kann defence164547.8%52.7%
B10Caro-Kann, closed (Breyer) variation137837.8%52.7%
B11Caro-Kann, Two knights, 3...Bg4135139.7%55.3%
B12Caro-Kann defence38931.4%57.3%
B12Caro-Kann, 3.Nd225136.3%59.6%
B12Caro-Kann, Edinburgh variation7742.9%56.5%
B12Caro-Kann, Tartakower (fantasy) variation98237.3%55.5%
B12Caro-Kann, advance variation1334837.9%56.4%
B12Caro-Kann, advance, Short variation6630.3%60.6%
B12Caro-Masi defence1100.0%50.0%
B12de Bruycker defence258.0%56.0%
B13Caro-Kann, Panov-Botvinnik attack131546.4%53.1%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation5238.5%48.1%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack2626.9%44.2%
B13Caro-Kann, Panov-Botvinnik, Herzog defence1833.3%50.0%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation742.9%64.3%
B13Caro-Kann, Panov-Botvinnik, normal variation13446.3%56.7%
B13Caro-Kann, exchange variation126839.4%52.1%
B13Caro-Kann, exchange, Rubinstein variation19736.0%54.6%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6219747.2%55.5%
B14Caro-Kann, Panov-Botvinnik attack, 5...g640951.3%52.6%
B15Caro-Kann defence34530.1%54.5%
B15Caro-Kann, Alekhine gambit3432.4%48.5%
B15Caro-Kann, Forgacs variation27942.3%56.3%
B15Caro-Kann, Gurgenidze counter-attack850.0%62.5%
B15Caro-Kann, Gurgenidze system45436.6%57.5%
B15Caro-Kann, Rasa-Studier gambit1822.2%27.8%
B15Caro-Kann, Tartakower (Nimzovich) variation52040.8%56.3%
B16Caro-Kann, Bronstein-Larsen variation61833.0%60.7%
B17Caro-Kann, Steinitz variation435943.5%53.5%
B18Caro-Kann, classical variation199145.0%54.7%
B18Caro-Kann, classical, 6.h469342.4%55.1%
B18Caro-Kann, classical, Flohr variation13452.2%53.7%
B18Caro-Kann, classical, Maroczy attack1216.7%41.7%
B19Caro-Kann, classical, 7...Nd741650.0%51.9%
B19Caro-Kann, classical, Spassky variation282340.1%56.6%
B20Sicilian defence349733.5%50.2%
B20Sicilian, Gloria variation1421.4%46.4%
B20Sicilian, Keres variation (2.Ne2)111737.3%52.3%
B20Sicilian, Steinitz variation61237.4%50.7%
B20Sicilian, wing gambit9934.3%45.5%
B20Sicilian, wing gambit, Carlsbad variation3644.4%50.0%
B20Sicilian, wing gambit, Marienbad variation10.0%0.0%
B20Sicilian, wing gambit, Marshall variation9428.7%55.9%
B21Sicilian, Andreaschek gambit1947.4%55.3%
B21Sicilian, Grand Prix attack194533.8%52.2%
B21Sicilian, Smith-Morra gambit103640.5%48.1%
B22Sicilian, 2.c3, Heidenfeld variation6225.8%45.2%
B22Sicilian, Alapin's variation (2.c3)806142.8%54.5%
B23Sicilian, Grand Prix attack98336.5%49.5%
B23Sicilian, Grand Prix attack, Schofman variation16041.9%52.2%
B23Sicilian, chameleon variation93134.9%57.1%
B23Sicilian, closed483336.6%51.7%
B23Sicilian, closed, 2...Nc6256738.8%52.4%
B23Sicilian, closed, Korchnoi variation24046.7%50.4%
B24Sicilian, closed61235.6%50.2%
B24Sicilian, closed, Smyslov variation2528.0%58.0%
B25Sicilian, closed37435.6%49.9%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)7932.9%51.9%
B25Sicilian, closed, 6.f451338.4%50.0%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)3743.2%59.5%
B26Sicilian, closed, 6.Be378932.8%50.1%
B27Sicilian defence5335.8%63.2%
B27Sicilian, Acton extension425.0%87.5%
B27Sicilian, Hungarian variation388939.7%57.6%
B27Sicilian, Katalimov variation21041.4%58.3%
B27Sicilian, Quinteros variation7639.5%63.2%
B27Sicilian, Stiletto (Althouse) variation250.0%25.0%
B28Sicilian, O'Kelly variation96436.0%57.9%
B29Sicilian, Nimzovich-Rubinstein variation120440.4%58.1%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit6456.3%53.1%
B30Sicilian defence383939.6%54.4%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)623137.9%56.5%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)408040.5%56.4%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation4148.8%51.2%
B32Sicilian defence112939.0%55.8%
B32Sicilian, Flohr variation32236.0%58.7%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation154740.8%56.3%
B32Sicilian, Labourdonnais-Loewenthal variation34939.3%58.6%
B32Sicilian, Nimzovich variation3743.2%54.1%
B33Sicilian defence59039.3%54.9%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation126635.9%55.1%
B33Sicilian, Pelikan, Bird variation25336.8%63.8%
B33Sicilian, Pelikan, Chelyabinsk variation236536.9%57.4%
B33Sicilian, Sveshnikov variation155539.3%50.8%
B34Sicilian, accelerated fianchetto, exchange variation3839.5%48.7%
B34Sicilian, accelerated fianchetto, modern variation56438.7%52.8%
B35Sicilian, accelerated fianchetto, modern variation with Bc4239243.2%53.5%
B36Sicilian, accelerated fianchetto, Gurgenidze variation33548.7%60.4%
B36Sicilian, accelerated fianchetto, Maroczy bind112445.6%58.1%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg721742.9%55.5%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3119643.4%57.7%
B39Sicilian, accelerated fianchetto, Breyer variation70841.7%58.3%
B40Sicilian defence764038.3%54.0%
B40Sicilian, Anderssen variation99040.3%56.9%
B40Sicilian, Marshall variation425.0%87.5%
B40Sicilian, Pin variation (Sicilian counter-attack)3633.3%63.9%
B40Sicilian, Pin, Jaffe variation40.0%100.0%
B40Sicilian, Pin, Koch variation7025.7%75.7%
B41Sicilian, Kan variation25843.0%55.6%
B41Sicilian, Kan, Maroczy bind (Reti variation)63735.8%59.2%
B41Sicilian, Kan, Maroczy bind - Bronstein variation3132.3%35.5%
B42Sicilian, Kan, 5.Bd3239039.0%57.8%
B42Sicilian, Kan, Gipslis variation8439.3%63.7%
B42Sicilian, Kan, Polugaievsky variation176038.1%54.5%
B42Sicilian, Kan, Swiss cheese variation32434.6%60.8%
B43Sicilian, Kan, 5.Nc3383739.2%56.3%
B44Sicilian defence38742.6%52.3%
B44Sicilian, Szen (`anti-Taimanov') variation98342.0%53.3%
B44Sicilian, Szen variation, Dely-Kasparov gambit2958.6%60.3%
B44Sicilian, Szen, hedgehog variation24441.0%50.8%
B45Sicilian, Taimanov variation234038.2%56.7%
B45Sicilian, Taimanov, American attack1942.1%42.1%
B46Sicilian, Taimanov variation367038.6%55.7%
B47Sicilian, Taimanov (Bastrikov) variation440441.8%54.4%
B48Sicilian, Taimanov variation391837.5%56.3%
B49Sicilian, Taimanov variation77444.4%57.2%
B50Sicilian628339.4%52.9%
B50Sicilian, wing gambit deferred3333.3%43.9%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack249038.6%54.8%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7239141.3%50.8%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit20840.4%58.2%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation106544.5%55.0%
B53Sicilian, Chekhover variation200141.0%51.6%
B53Sicilian, Chekhover, Zaitsev variation10232.4%59.3%
B54Sicilian127636.4%55.2%
B54Sicilian, Prins (Moscow) variation77038.3%55.6%
B55Sicilian, Prins variation, Venice attack9941.4%51.0%
B56Sicilian210939.2%53.0%
B56Sicilian, Venice attack8236.6%59.8%
B57Sicilian, Magnus Smith trap1145.5%40.9%
B57Sicilian, Sozin, Benko variation140639.5%51.6%
B57Sicilian, Sozin, not Scheveningen29940.5%56.0%
B58Sicilian, Boleslavsky variation48437.2%48.1%
B58Sicilian, Boleslavsky, Louma variation5435.2%54.6%
B58Sicilian, classical25542.7%48.8%
B59Sicilian, Boleslavsky variation, 7.Nb319346.6%52.8%
B60Sicilian, Richter-Rauzer91636.2%58.7%
B60Sicilian, Richter-Rauzer, Bondarevsky variation4348.8%64.0%
B60Sicilian, Richter-Rauzer, Larsen variation17930.2%60.9%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd266636.6%61.9%
B62Sicilian, Richter-Rauzer, 6...e66145.9%59.0%
B62Sicilian, Richter-Rauzer, Keres variation11831.4%48.7%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation10239.2%50.0%
B62Sicilian, Richter-Rauzer, Podvebrady variation2445.8%35.4%
B62Sicilian, Richter-Rauzer, Richter attack714.3%50.0%
B63Sicilian, Richter-Rauzer, Rauzer attack16737.7%57.2%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7130638.4%56.4%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f434938.4%57.6%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1241.7%62.5%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd463741.4%55.6%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6595333.8%51.7%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7314434.0%55.6%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be715333.3%56.5%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf613528.1%58.5%
B70Sicilian, dragon variation97243.1%52.1%
B71Sicilian, dragon, Levenfish variation42737.7%53.0%
B71Sicilian, dragon, Levenfish; Flohr variation4841.7%56.3%
B72Sicilian, dragon, 6.Be322133.5%50.7%
B72Sicilian, dragon, classical attack13641.2%54.4%
B72Sicilian, dragon, classical, Amsterdam variation5728.1%49.1%
B72Sicilian, dragon, classical, Grigoriev variation4643.5%50.0%
B72Sicilian, dragon, classical, Nottingham variation5345.3%52.8%
B73Sicilian, dragon, classical, 8.O-O42945.7%52.7%
B73Sicilian, dragon, classical, Richter variation17048.2%57.6%
B73Sicilian, dragon, classical, Zollner gambit1136.4%45.5%
B74Sicilian, dragon, classical, 9.Nb350949.1%49.7%
B74Sicilian, dragon, classical, Alekhine variation2951.7%63.8%
B74Sicilian, dragon, classical, Reti-Tartakower variation10145.5%53.5%
B74Sicilian, dragon, classical, Spielmann variation1030.0%55.0%
B75Sicilian, dragon, Yugoslav attack48033.1%56.8%
B76Sicilian, dragon, Yugoslav attack, 7...O-O37636.2%53.2%
B76Sicilian, dragon, Yugoslav attack, Rauser variation108534.1%63.3%
B77Sicilian, dragon, Yugoslav attack, 9...Bd726538.5%56.6%
B77Sicilian, dragon, Yugoslav attack, 9.Bc414035.0%54.6%
B77Sicilian, dragon, Yugoslav attack, Byrne variation1844.4%66.7%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O50228.7%56.2%
B79Sicilian, dragon, Yugoslav attack, 12.h41625.0%62.5%
B80Sicilian, Scheveningen variation140831.9%54.0%
B80Sicilian, Scheveningen, English variation18932.3%53.7%
B80Sicilian, Scheveningen, Vitolins variation5644.6%50.9%
B80Sicilian, Scheveningen, fianchetto variation23231.5%51.5%
B81Sicilian, Scheveningen, Keres attack246434.5%60.1%
B82Sicilian, Scheveningen, 6.f461036.2%56.3%
B82Sicilian, Scheveningen, Tal variation14235.2%64.1%
B83Sicilian, Scheveningen, 6.Be259940.6%53.0%
B83Sicilian, modern Scheveningen53442.5%49.7%
B83Sicilian, modern Scheveningen, main line57645.0%52.7%
B83Sicilian, modern Scheveningen, main line with Nb310036.0%55.0%
B84Sicilian, Scheveningen (Paulsen), classical variation401939.4%52.1%
B84Sicilian, Scheveningen, classical, Nd7 system11432.5%50.4%
B85Sicilian, Scheveningen, classical14839.9%50.3%
B85Sicilian, Scheveningen, classical main line38546.5%56.2%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6450.0%50.0%
B85Sicilian, Scheveningen, classical, Maroczy system2634.6%55.8%
B86Sicilian, Sozin attack29243.8%53.4%
B87Sicilian, Sozin with ...a6 and ...b587537.0%49.7%
B88Sicilian, Sozin, Fischer variation1650.0%50.0%
B88Sicilian, Sozin, Leonhardt variation69339.8%55.0%
B89Sicilian, Sozin, 7.Be3112238.0%51.3%
B89Sicilian, Velimirovic attack84234.3%51.8%
B90Sicilian, Najdorf368936.7%53.7%
B90Sicilian, Najdorf, Adams attack181038.8%53.3%
B90Sicilian, Najdorf, Byrne (English) attack2217435.9%53.2%
B90Sicilian, Najdorf, Lipnitzky attack131936.8%50.6%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation109040.4%54.3%
B92Sicilian, Najdorf, Opovcensky variation594641.0%53.4%
B93Sicilian, Najdorf, 6.f4189639.5%51.1%
B94Sicilian, Najdorf, 6.Bg5108236.6%53.1%
B95Sicilian, Najdorf, 6...e6138438.3%50.1%
B96Sicilian, Najdorf, 7.f4172236.4%51.7%
B96Sicilian, Najdorf, Polugayevsky variation11539.1%55.2%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation4020.0%52.5%
B97Sicilian, Najdorf, 7...Qb6183434.2%46.9%
B97Sicilian, Najdorf, Poisoned pawn variation122845.1%49.7%
B98Sicilian, Najdorf variation35328.6%57.6%
B98Sicilian, Najdorf, 7...Be713533.3%55.2%
B98Sicilian, Najdorf, Browne variation5328.3%63.2%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2347.8%50.0%
B99Sicilian, Najdorf, 7...Be7 main line66330.2%53.2%
C00French defence102330.1%56.0%
C00French defence, Steiner variation94942.3%51.7%
C00French, Alapin variation1625.0%56.3%
C00French, Chigorin variation127831.8%50.0%
C00French, King's Indian attack290636.0%51.5%
C00French, Labourdonnais variation29629.1%44.6%
C00French, Pelikan variation7639.5%51.3%
C00French, Reti (Spielmann) variation25235.7%51.6%
C00French, Reversed Philidor formation1330.8%61.5%
C00French, Schlechter variation24041.3%52.3%
C00French, Steinitz attack2524.0%44.0%
C00French, Two knights variation35735.6%53.4%
C00French, Wing gambit6040.0%58.3%
C00Lengfellner system2114.3%64.3%
C00St. George defence19846.0%58.3%
C01French, exchange variation201243.5%53.8%
C01French, exchange, Bogolyubov variation837.5%43.8%
C01French, exchange, Svenonius variation8736.8%51.7%
C02French, advance variation164131.4%56.4%
C02French, advance, Euwe variation166736.2%55.5%
C02French, advance, Milner-Barry gambit12936.4%48.4%
C02French, advance, Nimzovich system14329.4%49.7%
C02French, advance, Nimzovich variation1428.6%42.9%
C02French, advance, Paulsen attack209233.4%55.2%
C02French, advance, Steinitz variation59737.2%57.6%
C02French, advance, Wade variation41339.2%57.9%
C03French, Tarrasch308843.1%56.9%
C03French, Tarrasch, Guimard variation15030.7%61.3%
C03French, Tarrasch, Haberditz variation40.0%75.0%
C04French, Tarrasch, Guimard main line56329.7%60.1%
C05French, Tarrasch, Botvinnik variation10235.3%65.7%
C05French, Tarrasch, closed variation146230.9%60.7%
C06French, Tarrasch, Leningrad variation1921.1%84.2%
C06French, Tarrasch, closed variation, main line110237.8%59.7%
C07French, Tarrasch, Eliskases variation16247.5%53.4%
C07French, Tarrasch, open variation438747.0%54.1%
C08French, Tarrasch, open, 4.ed ed158250.8%54.8%
C09French, Tarrasch, open variation, main line124850.5%56.7%
C10French, Fort Knox variation72140.2%56.7%
C10French, Frere (Becker) variation3237.5%62.5%
C10French, Marshall variation250.0%25.0%
C10French, Paulsen variation107330.3%60.3%
C10French, Rubinstein variation294348.4%55.8%
C10French, Rubinstein, Capablanca line1060.0%50.0%
C11French defence23342.1%55.4%
C11French, Burn variation582145.0%52.8%
C11French, Henneberger variation1533.3%50.0%
C11French, Steinitz variation126337.5%54.2%
C11French, Steinitz, Boleslavsky variation420535.8%57.0%
C11French, Steinitz, Bradford attack1100.0%50.0%
C11French, Steinitz, Gledhill attack13633.8%52.9%
C11French, Swiss variation6045.0%54.2%
C12French, MacCutcheon variation16541.8%46.4%
C12French, MacCutcheon, Bernstein variation3125.8%58.1%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C12French, MacCutcheon, Chigorin variation8941.6%50.0%
C12French, MacCutcheon, Dr. Olland (Dutch) variation12740.9%59.1%
C12French, MacCutcheon, Duras variation425.0%62.5%
C12French, MacCutcheon, Grigoriev variation3158.1%54.8%
C12French, MacCutcheon, Janowski variation15538.1%57.7%
C12French, MacCutcheon, Lasker variation23227.6%60.3%
C12French, MacCutcheon, Lasker variation, 8...g642435.8%59.2%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
C12French, MacCutcheon, advance variation1526.7%20.0%
C13French, Albin-Alekhine-Chatard attack36930.6%55.4%
C13French, Albin-Alekhine-Chatard attack, Breyer variation9837.8%63.8%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation2020.0%65.0%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation6838.2%66.2%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation366.7%66.7%
C13French, classical2944.8%43.1%
C13French, classical, Anderssen variation2030.0%40.0%
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 variation128.3%37.5%
C14French, classical, Alapin variation11646.6%53.4%
C14French, classical, Pollock variation1625.0%43.8%
C14French, classical, Rubinstein variation4337.2%60.5%
C14French, classical, Stahlberg variation650.0%58.3%
C14French, classical, Steinitz variation85736.1%58.5%
C14French, classical, Tarrasch variation2020.0%55.0%
C15French, Winawer (Nimzovich) variation118840.3%55.5%
C15French, Winawer, Alekhine (Maroczy) gambit28938.1%56.7%
C15French, Winawer, Alekhine gambit1637.5%56.3%
C15French, Winawer, Alekhine gambit, Kan variation5942.4%50.0%
C15French, Winawer, Kondratiyev variation1338.5%57.7%
C15French, Winawer, fingerslip variation6030.0%45.0%
C16French, Winawer, Petrosian variation27431.8%55.7%
C16French, Winawer, advance variation114432.6%57.0%
C17French, Winawer, advance variation10838.0%58.8%
C17French, Winawer, advance, 5.a351235.0%63.6%
C17French, Winawer, advance, Bogolyubov variation42438.9%52.0%
C17French, Winawer, advance, Rauzer variation2236.4%63.6%
C17French, Winawer, advance, Russian variation6939.1%51.4%
C18French, Winawer, advance variation64326.9%62.8%
C18French, Winawer, classical variation44031.8%58.6%
C19French, Winawer, advance, 6...Ne746735.5%60.2%
C19French, Winawer, advance, Smyslov variation19528.7%63.1%
C19French, Winawer, advance, poisoned pawn variation288533.8%61.5%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation84632.5%62.5%
C19French, Winawer, advance, positional main line118030.9%58.3%
C20Alapin's opening5630.4%58.0%
C20KP, Indian opening13236.4%46.2%
C20KP, King's head opening250.0%25.0%
C20KP, Lopez opening2040.0%35.0%
C20KP, Mengarini's opening2240.9%29.5%
C20KP, Napoleon's opening3441.2%55.9%
C20KP, Patzer opening13026.9%41.2%
C20King's pawn game10436.5%51.9%
C21Centre game35340.2%55.8%
C21Danish gambit28835.8%49.5%
C21Danish gambit, Collijn defence560.0%50.0%
C21Danish gambit, Schlechter defence1513.3%46.7%
C21Danish gambit, Soerensen defence21741.5%51.2%
C21Halasz gambit2231.8%43.2%
C22Centre game45737.2%46.0%
C22Centre game, Berger variation43038.8%52.9%
C22Centre game, Charousek variation862.5%56.3%
C22Centre game, Hall variation2937.9%36.2%
C22Centre game, Paulsen attack41137.5%53.3%
C22Centre game, l'Hermet variation80.0%37.5%
C23Bishop's opening35033.4%53.6%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C23Bishop's opening, Classical variation11140.5%52.7%
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-attack21949.3%50.2%
C23Bishop's opening, Philidor variation944.4%55.6%
C23Bishop's opening, Wing gambit650.0%41.7%
C24Bishop's opening, Berlin defence182440.6%53.1%
C24Bishop's opening, Ponziani gambit2030.0%30.0%
C24Bishop's opening, Urusov gambit10438.5%37.5%
C24Bishop's opening, Urusov gambit, Panov variation450.0%50.0%
C25Vienna gambit16835.7%54.8%
C25Vienna game42635.7%57.5%
C25Vienna game, Max Lange defence4748.9%50.0%
C25Vienna, Paulsen variation20832.2%56.5%
C25Vienna, Pierce gambit2725.9%53.7%
C25Vienna, Steinitz gambit250.0%25.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation10.0%100.0%
C26Vienna game47940.7%54.4%
C26Vienna, Falkbeer variation11936.1%57.6%
C26Vienna, Mengarini variation2759.3%48.1%
C26Vienna, Paulsen-Mieses variation85339.9%52.3%
C27Boden-Kieseritsky gambit4334.9%33.7%
C27Boden-Kieseritsky gambit, Lichtenhein defence2128.6%52.4%
C27Vienna game22739.2%52.6%
C27Vienna, Alekhine variation3839.5%48.7%
C27Vienna, `Frankenstein-Dracula' variation175.9%79.4%
C28Vienna game64640.9%52.0%
C29Vienna gambit64936.5%50.0%
C29Vienna gambit, Bardeleben variation1631.3%53.1%
C29Vienna gambit, Breyer variation20633.5%52.2%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C29Vienna gambit, Paulsen attack5143.1%52.9%
C29Vienna gambit, Steinitz variation3638.9%47.2%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C30KGD, 2...Nf66829.4%60.3%
C30KGD, Keene's defence8828.4%64.2%
C30KGD, Mafia defence837.5%68.8%
C30KGD, Norwalde variation2213.6%79.5%
C30KGD, classical counter-gambit1050.0%55.0%
C30KGD, classical variation26428.8%54.2%
C30KGD, classical, 4.c320931.6%59.3%
C30KGD, classical, Hanham variation650.0%58.3%
C30KGD, classical, Heath variation1346.2%53.8%
C30KGD, classical, Marshall attack1080.0%50.0%
C30KGD, classical, Reti variation366.7%33.3%
C30KGD, classical, Soldatenkov variation728.6%28.6%
C30KGD, classical, Svenonius variation366.7%66.7%
C30King's gambit31235.6%57.5%
C31KGD, Falkbeer counter-gambit30534.1%53.1%
C31KGD, Falkbeer, 3...e44040.0%50.0%
C31KGD, Falkbeer, 4.d35650.0%62.5%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C31KGD, Falkbeer, Morphy gambit2123.8%50.0%
C31KGD, Falkbeer, Nimzovich variation2343.5%52.2%
C31KGD, Falkbeer, Rubinstein variation2910.3%56.9%
C31KGD, Falkbeer, Tartakower variation6858.8%48.5%
C31KGD, Nimzovich counter-gambit31037.1%52.4%
C32KGD, Falkbeer, 5.de6035.0%50.8%
C32KGD, Falkbeer, Charousek gambit1361.5%53.8%
C32KGD, Falkbeer, Keres variation3540.0%54.3%
C32KGD, Falkbeer, Reti variation2231.8%52.3%
C32KGD, Falkbeer, main line, 7...Bf51127.3%68.2%
C33KGA, Breyer gambit333.3%50.0%
C33KGA, Carrera (Basman) gambit825.0%50.0%
C33KGA, Keres (Mason-Steinitz) gambit6141.0%45.1%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit1315.4%53.8%
C33KGA, Villemson (Steinitz) gambit1631.3%53.1%
C33KGA, bishop's gambit36936.0%50.3%
C33KGA, bishop's gambit, Anderssen variation633.3%50.0%
C33KGA, bishop's gambit, Bledow variation18027.2%41.9%
C33KGA, bishop's gambit, Boden defence850.0%50.0%
C33KGA, bishop's gambit, Bogolyubov variation8439.3%50.6%
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 variation14540.7%47.9%
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 variation6028.3%59.2%
C33KGA, bishop's gambit, Paulsen attack1936.8%44.7%
C33KGA, bishop's gambit, Ruy Lopez defence4242.9%54.8%
C33KGA, bishop's gambit, Steinitz defence10328.2%50.0%
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 variation20629.6%53.6%
C34KGA, Fischer defence32132.4%47.4%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C34KGA, Schallop defence22829.4%53.7%
C34King's knight's gambit4526.7%48.9%
C35KGA, Cunningham defence27428.5%51.5%
C35KGA, Cunningham, Euwe defence13625.7%46.7%
C36KGA, Abbazia defence (classical defence, modern defence[!])13841.3%58.3%
C36KGA, Abbazia defence, modern variation75639.8%47.8%
C37KGA, Blachly gambit3234.4%32.8%
C37KGA, Cochrane gambit520.0%30.0%
C37KGA, King's knight's gambit3560.0%52.9%
C37KGA, Muzio gambit1136.4%36.4%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C37KGA, Quaade gambit4537.8%36.7%
C37KGA, Rosentreter gambit3636.1%43.1%
C37KGA, Salvio gambit1020.0%60.0%
C37KGA, Salvio gambit, Anderssen counter-attack50.0%60.0%
C37KGA, Silberschmidt gambit425.0%37.5%
C38KGA, Hanstein gambit1225.0%62.5%
C38KGA, Philidor gambit2520.0%34.0%
C38KGA, Philidor gambit, Schultz variation1060.0%30.0%
C38King's knight's gambit5236.5%24.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C39KGA, Kieseritsky, Berlin defence8434.5%44.6%
C39KGA, Kieseritsky, Berlin defence, 6.Bc46931.9%43.5%
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 defence14744.2%47.3%
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) defence1833.3%50.0%
C39King's knight's gambit1323.1%50.0%
C40Greco defence1225.0%45.8%
C40Gunderam defence12732.3%64.2%
C40King's knight opening20.0%50.0%
C40Latvian counter-gambit36329.8%58.4%
C40Latvian gambit, 3.Bc41560.0%56.7%
C40Latvian, Behting variation2100.0%50.0%
C40Latvian, Fraser defence4738.3%59.6%
C40Latvian, Nimzovich variation20.0%50.0%
C40Latvian, Polerio variation2429.2%43.8%
C40QP counter-gambit (elephant gambit)3250.0%65.6%
C40QP counter-gambit, Maroczy gambit540.0%80.0%
C41Philidor's defence48135.1%59.4%
C41Philidor, Boden variation850.0%50.0%
C41Philidor, Hanham variation5733.3%62.3%
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 variation139339.0%57.5%
C41Philidor, Larsen variation6625.8%65.9%
C41Philidor, Lopez counter-gambit30.0%66.7%
C41Philidor, Nimzovich (Jaenisch) variation2733.3%50.0%
C41Philidor, Nimzovich variation6642.4%59.1%
C41Philidor, Nimzovich, Klein variation1353.8%57.7%
C41Philidor, Nimzovich, Larobok variation8447.6%36.9%
C41Philidor, Nimzovich, Locock variation450.0%50.0%
C41Philidor, Nimzovich, Rellstab variation4637.0%66.3%
C41Philidor, Nimzovich, Sokolsky variation1478.6%60.7%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
C41Philidor, Paulsen attack250.0%25.0%
C41Philidor, Philidor counter-gambit2416.7%66.7%
C41Philidor, Philidor counter-gambit, Zukertort variation1050.0%65.0%
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%
C41Philidor, Steinitz variation20.0%0.0%
C41Philidor, exchange variation105237.5%59.2%
C42Petrov three knights game39738.8%58.7%
C42Petrov's defence39841.5%52.4%
C42Petrov, Cochrane gambit8320.5%35.5%
C42Petrov, Cozio (Lasker) attack57049.6%52.0%
C42Petrov, Damiano variation3246.9%54.7%
C42Petrov, French attack966.7%66.7%
C42Petrov, Italian variation6527.7%49.2%
C42Petrov, Kaufmann attack30546.9%52.6%
C42Petrov, Nimzovich attack158845.1%55.0%
C42Petrov, Paulsen attack22342.6%50.4%
C42Petrov, classical attack109648.0%57.4%
C42Petrov, classical attack, Berger variation1968.4%55.3%
C42Petrov, classical attack, Chigorin variation67141.7%57.4%
C42Petrov, classical attack, Jaenisch variation181646.2%58.5%
C42Petrov, classical attack, Krause variation944.4%33.3%
C42Petrov, classical attack, Marshall variation118043.8%57.8%
C42Petrov, classical attack, Mason variation16043.8%57.5%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C42Petrov, classical attack, close variation20044.0%59.0%
C43Petrov, Urusov gambit1216.7%66.7%
C43Petrov, modern (Steinitz) attack5644.6%54.5%
C43Petrov, modern attack, Bardeleben variation837.5%56.3%
C43Petrov, modern attack, Steinitz variation250.0%75.0%
C43Petrov, modern attack, Symmetrical variation315944.6%52.9%
C43Petrov, modern attack, Trifunovic variation6546.2%49.2%
C43Petrov, modern attack, main line23847.1%58.0%
C44Dresden opening1827.8%41.7%
C44Inverted Hanham4429.5%46.6%
C44Inverted Hungarian4042.5%53.8%
C44King's pawn game13030.8%50.0%
C44Konstantinopolsky opening4936.7%61.2%
C44Ponziani counter-gambit13240.2%60.2%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C44Ponziani opening36731.3%45.9%
C44Ponziani, Caro variation26844.4%49.4%
C44Ponziani, Fraser defence6937.7%65.2%
C44Ponziani, Jaenisch counter-attack243044.6%52.1%
C44Ponziani, Leonhardt variation13834.8%50.7%
C44Ponziani, Reti variation4434.1%60.2%
C44Ponziani, Romanishin variation2433.3%50.0%
C44Ponziani, Steinitz variation52741.7%46.1%
C44Scotch gambit13740.9%56.9%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Scotch gambit, Benima defence6137.7%56.6%
C44Scotch gambit, Cochrane-Shumov defence366.7%66.7%
C44Scotch gambit, Dubois-Reti defence39242.1%53.4%
C44Scotch gambit, Hanneken variation10.0%100.0%
C44Scotch opening1442.9%42.9%
C44Scotch, Goering gambit24442.6%55.3%
C44Scotch, Goering gambit, Bardeleben variation1540.0%46.7%
C44Scotch, Lolli variation2231.8%56.8%
C44Scotch, Relfsson gambit ('MacLopez')1040.0%50.0%
C44Tayler opening425.0%37.5%
C45Scotch game298542.6%54.5%
C45Scotch, Blackburne attack3043.3%51.7%
C45Scotch, Blumenfeld attack1637.5%31.3%
C45Scotch, Ghulam Kassim variation875.0%50.0%
C45Scotch, Horwitz attack4032.5%56.3%
C45Scotch, Meitner variation3956.4%53.8%
C45Scotch, Mieses variation171542.0%53.8%
C45Scotch, Paulsen attack1637.5%50.0%
C45Scotch, Potter variation69039.9%52.5%
C45Scotch, Pulling counter-attack520.0%70.0%
C45Scotch, Romanishin variation7939.2%56.3%
C45Scotch, Schmidt variation83950.1%47.9%
C45Scotch, Steinitz variation4632.6%57.6%
C45Scotch, Tartakower variation2227.3%40.9%
C46Four knights game93141.4%50.2%
C46Four knights, Gunsberg variation14942.3%49.3%
C46Four knights, Italian variation23843.7%47.5%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C46Three knights game37131.5%60.0%
C46Three knights, Schlechter variation4639.1%54.3%
C46Three knights, Steinitz variation24227.7%56.4%
C46Three knights, Steinitz, Rosenthal variation2948.3%48.3%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C47Four knights, Belgrade gambit14144.0%52.5%
C47Four knights, Scotch variation2832.1%51.8%
C47Four knights, Scotch, 4...exd455951.9%53.5%
C47Four knights, Scotch, Krause variation6040.0%63.3%
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-gambit133941.1%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 variation8547.1%49.4%
C48Four knights, Rubinstein counter-gambit, exchange variation20366.5%52.5%
C48Four knights, Spanish variation33348.6%55.3%
C48Four knights, Spanish, classical defence24545.3%50.4%
C48Four knights, Spielmann variation862.5%43.8%
C49Four knights9251.1%47.3%
C49Four knights, Gunsberg counter-attack560.0%50.0%
C49Four knights, Janowski variation1936.8%65.8%
C49Four knights, Nimzovich (Paulsen) variation8653.5%58.1%
C49Four knights, Svenonius variation560.0%50.0%
C49Four knights, double Ruy Lopez26042.7%56.3%
C49Four knights, symmetrical variation21741.0%55.5%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C49Four knights, symmetrical, Capablanca variation2454.2%60.4%
C49Four knights, symmetrical, Maroczy system8345.8%54.2%
C49Four knights, symmetrical, Metger unpin36137.1%51.0%
C49Four knights, symmetrical, Pillsbury variation6845.6%44.9%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C50Giuoco Pianissimo294539.2%53.8%
C50Giuoco Pianissimo, Canal variation21843.1%52.3%
C50Giuoco Pianissimo, Italian four knights variation55137.6%51.8%
C50Giuoco Piano194940.4%53.0%
C50Giuoco Piano, four knights variation6836.8%53.7%
C50Hungarian defence23040.9%50.0%
C50King's pawn game27935.5%60.4%
C50Rousseau gambit333.3%50.0%
C51Evans counter-gambit3630.6%56.9%
C51Evans gambit1540.0%66.7%
C51Evans gambit declined6238.7%53.2%
C51Evans gambit declined, 5.a420441.2%46.6%
C51Evans gambit declined, Lange variation20.0%0.0%
C51Evans gambit declined, Showalter variation4847.9%55.2%
C51Evans gambit, 5...Be77636.8%60.5%
C51Evans gambit, Cordel variation10647.2%46.2%
C51Evans gambit, Fraser attack1233.3%58.3%
C51Evans gambit, Goering attack333.3%83.3%
C51Evans gambit, Morphy attack2941.4%55.2%
C51Evans gambit, Paulsen variation2025.0%67.5%
C51Evans gambit, Stone-Ware variation26632.3%54.1%
C51Evans gambit, Ulvestad variation20.0%100.0%
C51Evans gambit, normal variation4425.0%46.6%
C52Evans gambit40839.2%48.5%
C52Evans gambit, Alapin-Steinitz variation560.0%30.0%
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 variation425.0%62.5%
C52Evans gambit, Tartakower attack8545.9%46.5%
C52Evans gambit, Waller attack825.0%87.5%
C52Evans gambit, compromised defence4822.9%71.9%
C52Evans gambit, compromised defence, Paulsen variation1723.5%58.8%
C52Evans gambit, compromised defence, Potter variation10.0%100.0%
C53Giuoco Piano321638.8%52.1%
C53Giuoco Piano, Anderssen variation4060.0%45.0%
C53Giuoco Piano, Bird's attack19932.7%51.5%
C53Giuoco Piano, Eisinger variation20.0%100.0%
C53Giuoco Piano, LaBourdonnais variation6145.9%59.0%
C53Giuoco Piano, Mestel variation1216.7%66.7%
C53Giuoco Piano, centre-holding variation8641.9%61.6%
C53Giuoco Piano, close variation13637.5%58.5%
C54Giuoco Piano23151.9%51.1%
C54Giuoco Piano, Moeller (Therkatz) attack3948.7%47.4%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C55Giuoco piano20.0%50.0%
C55Two knights defence12839.1%50.8%
C55Two knights defence (Modern bishop's opening)182538.7%56.0%
C55Two knights defence, Keidanz variation2100.0%50.0%
C55Two knights defence, Perreux variation3855.3%53.9%
C55Two knights, Max Lange attack4233.3%59.5%
C55Two knights, Max Lange attack, Krause variation450.0%75.0%
C55Two knights, Max Lange attack, Loman defence20.0%50.0%
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 variation2955.2%51.7%
C55Two knights, Max Lange attack, Steinitz variation1637.5%68.8%
C56Two knights defence15547.7%49.0%
C56Two knights defence, Canal variation540.0%40.0%
C57Two knights defence2025.0%42.5%
C57Two knights defence, Fegatello attack8923.6%52.2%
C57Two knights defence, Fegatello attack, Leonhardt variation922.2%55.6%
C57Two knights defence, Fegatello attack, Polerio defence40.0%100.0%
C57Two knights defence, Fritz variation10140.6%50.0%
C57Two knights defence, Fritz, Gruber variation1637.5%43.8%
C57Two knights defence, Lolli attack2035.0%57.5%
C57Two knights defence, Pincus variation1040.0%30.0%
C57Two knights defence, Ulvestad variation11250.9%46.9%
C57Two knights defence, Wilkes Barre (Traxler) variation12733.9%57.9%
C58Two knights defence34035.9%56.8%
C58Two knights defence, Blackburne variation30.0%66.7%
C58Two knights defence, Bogolyubov variation8330.1%44.0%
C58Two knights defence, Colman variation8433.3%46.4%
C58Two knights defence, Kieseritsky variation4429.5%58.0%
C58Two knights defence, Paoli variation933.3%72.2%
C58Two knights defence, Yankovich variation1827.8%25.0%
C59Two knights defence20738.2%48.6%
C59Two knights defence, Goering variation812.5%31.3%
C59Two knights defence, Steinitz variation39831.4%48.4%
C60Ruy Lopez (Spanish opening)8031.3%55.6%
C60Ruy Lopez, Cozio defence53339.0%52.9%
C60Ruy Lopez, Cozio defence, Paulsen variation7040.0%65.7%
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) defence59240.7%53.6%
C61Ruy Lopez, Bird's defence60537.2%56.0%
C61Ruy Lopez, Bird's defence, Paulsen variation850.0%62.5%
C62Ruy Lopez, old Steinitz defence48137.2%55.0%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation2245.5%54.5%
C63Ruy Lopez, Schliemann defence53442.5%57.2%
C63Ruy Lopez, Schliemann defence, Berger variation51644.6%56.8%
C64Ruy Lopez, Cordel gambit9740.2%56.2%
C64Ruy Lopez, classical (Cordel) defence35241.2%53.0%
C64Ruy Lopez, classical defence, 4.c337942.0%56.9%
C64Ruy Lopez, classical defence, Benelux variation 46739.6%55.6%
C64Ruy Lopez, classical defence, Boden variation633.3%66.7%
C64Ruy Lopez, classical defence, Charousek variation1030.0%65.0%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C65Ruy Lopez, Berlin defence524439.7%52.0%
C65Ruy Lopez, Berlin defence, 4.O-O24641.1%58.7%
C65Ruy Lopez, Berlin defence, Anderssen variation250.0%75.0%
C65Ruy Lopez, Berlin defence, Beverwijk variation62638.7%57.3%
C65Ruy Lopez, Berlin defence, Duras variation2937.9%46.6%
C65Ruy Lopez, Berlin defence, Kaufmann variation4047.5%53.8%
C65Ruy Lopez, Berlin defence, Mortimer variation2751.9%44.4%
C65Ruy Lopez, Berlin defence, Nyholm attack11553.9%53.0%
C66Ruy Lopez, Berlin defence, 4.O-O, d617542.9%59.1%
C66Ruy Lopez, Berlin defence, hedgehog variation13050.0%58.1%
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 variation7045.7%57.1%
C66Ruy Lopez, closed Berlin defence, Wolf variation6157.4%56.6%
C67Ruy Lopez, Berlin defence, Cordel variation8336.1%61.4%
C67Ruy Lopez, Berlin defence, Minckwitz variation4946.9%60.2%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation5040.0%60.0%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C67Ruy Lopez, Berlin defence, Winawer attack3135.5%69.4%
C67Ruy Lopez, Berlin defence, Zukertort variation2254.5%59.1%
C67Ruy Lopez, Berlin defence, open variation482147.7%53.6%
C67Ruy Lopez, open Berlin defence, 5...Be710541.0%51.9%
C67Ruy Lopez, open Berlin defence, Showalter variation2429.2%47.9%
C67Ruy Lopez, open Berlin defence, l'Hermet variation13359.4%50.0%
C68Ruy Lopez, exchange variation11635.3%53.9%
C68Ruy Lopez, exchange, Alekhine variation2842.9%46.4%
C68Ruy Lopez, exchange, Keres variation17546.3%50.6%
C68Ruy Lopez, exchange, Romanovsky variation4833.3%50.0%
C69Ruy Lopez, exchange variation, 5.O-O116141.8%53.0%
C69Ruy Lopez, exchange variation, Alapin gambit37643.4%51.7%
C69Ruy Lopez, exchange, Bronstein variation83438.2%50.3%
C69Ruy Lopez, exchange, Gligoric variation89944.0%54.6%
C70Ruy Lopez18438.0%53.8%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C70Ruy Lopez, Caro variation10842.6%58.3%
C70Ruy Lopez, Classical defence deferred12339.8%58.1%
C70Ruy Lopez, Cozio defence deferred53041.3%54.2%
C70Ruy Lopez, Graz variation1266.7%58.3%
C70Ruy Lopez, Schliemann defence deferred3938.5%60.3%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation17838.8%62.6%
C70Ruy Lopez, fianchetto defence deferred11049.1%56.4%
C71Ruy Lopez, modern Steinitz defence18742.2%55.3%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation24339.1%56.2%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C72Ruy Lopez, modern Steinitz defence, 5.O-O90541.4%58.0%
C73Ruy Lopez, modern Steinitz defence, Alapin variation31233.0%49.8%
C73Ruy Lopez, modern Steinitz defence, Richter variation26547.9%50.4%
C74Ruy Lopez, Siesta, Kopayev variation19432.5%55.4%
C74Ruy Lopez, modern Steinitz defence19031.1%61.8%
C74Ruy Lopez, modern Steinitz defence, siesta variation12635.7%50.4%
C75Ruy Lopez, modern Steinitz defence25043.2%53.2%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation18929.6%59.3%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation56636.7%53.7%
C77Ruy Lopez, Anderssen variation180943.3%51.9%
C77Ruy Lopez, Morphy defence29540.7%55.6%
C77Ruy Lopez, Morphy defence, Duras variation7838.5%59.0%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)10646.2%43.9%
C77Ruy Lopez, Wormald (Alapin) attack56042.7%53.3%
C77Ruy Lopez, Wormald attack, Gruenfeld variation450.0%75.0%
C77Ruy Lopez, four knights (Tarrasch) variation22143.4%54.3%
C78Ruy Lopez, ...b5 & ...d66334.9%58.7%
C78Ruy Lopez, 5.O-O136646.9%54.2%
C78Ruy Lopez, Archangelsk (counterthrust) variation190042.6%55.2%
C78Ruy Lopez, Moeller defence72342.6%54.4%
C78Ruy Lopez, Rabinovich variation10.0%0.0%
C78Ruy Lopez, Wing attack1747.1%52.9%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)47139.1%54.8%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1471.4%57.1%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation3351.5%56.1%
C80Ruy Lopez, open (Tarrasch) defence7342.5%62.3%
C80Ruy Lopez, open, 6.d45141.2%44.1%
C80Ruy Lopez, open, 7.Bb349540.8%52.9%
C80Ruy Lopez, open, 8...Be6132738.1%44.0%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C80Ruy Lopez, open, Bernstein variation105749.6%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 variation1050.0%65.0%
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 attack27849.6%54.7%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1233.3%50.0%
C82Ruy Lopez, open, 9.c3825.0%75.0%
C82Ruy Lopez, open, Berlin variation2828.6%67.9%
C82Ruy Lopez, open, Dilworth variation17841.0%59.3%
C82Ruy Lopez, open, Italian variation10350.5%63.1%
C82Ruy Lopez, open, Motzko attack8846.6%56.3%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation1942.1%73.7%
C82Ruy Lopez, open, St. Petersburg variation21642.1%65.0%
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 defence23547.7%58.7%
C84Ruy Lopez, closed defence188641.8%52.0%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C84Ruy Lopez, closed, centre attack19949.7%48.0%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)156439.8%49.4%
C86Ruy Lopez, Worrall attack3348.5%57.6%
C86Ruy Lopez, Worrall attack, sharp line30541.0%52.3%
C86Ruy Lopez, Worrall attack, solid line15939.0%50.3%
C87Ruy Lopez, closed, Averbach variation43140.6%59.5%
C88Ruy Lopez, Trajkovic counter-attack67242.1%52.2%
C88Ruy Lopez, closed134542.0%53.3%
C88Ruy Lopez, closed, 7...O-O355741.1%52.5%
C88Ruy Lopez, closed, 7...d6, 8.d42433.3%25.0%
C88Ruy Lopez, closed, 8.c33644.4%55.6%
C88Ruy Lopez, closed, Balla variation4637.0%55.4%
C88Ruy Lopez, closed, anti-Marshall 8.a4192040.5%54.0%
C89Ruy Lopez, Marshall counter-attack60352.4%54.1%
C89Ruy Lopez, Marshall counter-attack, 11...c623146.8%55.4%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
C89Ruy Lopez, Marshall, main line, 12.d2d423440.2%62.4%
C89Ruy Lopez, Marshall, main line, 14...Qh349450.8%51.3%
C89Ruy Lopez, Marshall, main line, Spassky variation10.0%0.0%
C90Ruy Lopez, closed (with ...d6)123537.4%51.7%
C90Ruy Lopez, closed, Lutikov variation4546.7%52.2%
C90Ruy Lopez, closed, Pilnik variation88935.8%51.9%
C90Ruy Lopez, closed, Suetin variation9537.9%57.9%
C91Ruy Lopez, closed, 9.d4131639.1%58.3%
C91Ruy Lopez, closed, Bogolyubov variation402043.7%53.7%
C92Ruy Lopez, closed, 9.h343743.0%53.1%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)206238.9%56.9%
C92Ruy Lopez, closed, Keres (9...a5) variation2055.0%47.5%
C92Ruy Lopez, closed, Kholmov variation13632.4%64.7%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation34242.7%63.7%
C93Ruy Lopez, closed, Smyslov defence26340.3%58.9%
C94Ruy Lopez, closed, Breyer defence10937.6%57.3%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation79939.5%56.6%
C95Ruy Lopez, closed, Breyer, Gligoric variation6142.6%57.4%
C95Ruy Lopez, closed, Breyer, Simagin variation2540.0%56.0%
C96Ruy Lopez, closed (10...c5)71633.1%65.6%
C96Ruy Lopez, closed (8...Na5)3850.0%61.8%
C96Ruy Lopez, closed, Borisenko defence4139.0%58.5%
C96Ruy Lopez, closed, Keres (...Nd7) defence23936.8%66.1%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C97Ruy Lopez, closed, Chigorin defence83031.1%63.4%
C98Ruy Lopez, closed, Chigorin, 12...Nc615131.1%63.2%
C99Ruy Lopez, closed, Chigorin, 12...c5d491640.3%62.9%
D00Blackmar gambit24337.9%41.2%
D00Blackmar-Diemer gambit6743.3%42.5%
D00Blackmar-Diemer, Euwe defence3925.6%46.2%
D00Blackmar-Diemer, Lemberg counter-gambit2020.0%60.0%
D00Levitsky attack (Queen's bishop attack)281335.5%50.8%
D00Queen's pawn game129837.2%50.1%
D00Queen's pawn, Anti-Veresov450.0%50.0%
D00Queen's pawn, Chigorin variation88932.6%51.2%
D00Queen's pawn, Mason variation166937.8%53.1%
D00Queen's pawn, Mason variation, Steinitz counter-gambit77839.6%52.1%
D00Queen's pawn, stonewall attack7731.2%41.6%
D01Richter-Veresov attack86931.4%48.4%
D01Richter-Veresov attack, Richter variation2725.9%57.4%
D01Richter-Veresov attack, Veresov variation3441.2%47.1%
D02Queen's bishop game211840.1%53.2%
D02Queen's pawn game704240.7%53.3%
D02Queen's pawn game, Chigorin variation71839.1%56.1%
D02Queen's pawn game, Krause variation68741.0%55.0%
D03Torre attack (Tartakower variation)89338.3%50.6%
D04Queen's pawn game134238.7%51.6%
D05Colle system29744.8%52.0%
D05Queen's pawn game97537.3%52.3%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation44639.2%54.6%
D05Queen's pawn game, Zukertort variation6346.0%56.3%
D06QGD, Grau (Sahovic) defence32833.5%59.5%
D06QGD, Marshall defence36041.7%55.0%
D06QGD, symmetrical (Austrian) defence15945.3%60.4%
D07QGD, Chigorin defence117336.1%57.2%
D07QGD, Chigorin defence, Janowski variation14335.7%63.3%
D08QGD, Albin counter-gambit62037.9%55.2%
D08QGD, Albin counter-gambit, Alapin variation13048.5%55.8%
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.g345742.0%56.5%
D10QGD Slav defence513240.4%54.2%
D10QGD Slav defence, Alekhine variation32438.3%57.4%
D10QGD Slav defence, exchange variation210944.0%55.8%
D10QGD Slav, Winawer counter-gambit25632.8%54.7%
D11QGD Slav, 3.Nf3398041.0%55.2%
D11QGD Slav, 4.e3598042.7%55.4%
D11QGD Slav, Breyer variation27241.9%58.8%
D12QGD Slav, 4.e3 Bf5407740.3%54.7%
D12QGD Slav, Amsterdam variation2254.5%45.5%
D12QGD Slav, exchange variation11037.3%48.6%
D13QGD Slav, exchange variation92748.1%55.2%
D14QGD Slav, exchange variation, 6.Bf4 Bf577051.0%52.4%
D14QGD Slav, exchange, Trifunovic variation25651.6%52.7%
D15QGD Slav accepted14738.1%51.7%
D15QGD Slav, 4.Nc3536240.4%55.2%
D15QGD Slav, 5.e3 (Alekhine variation)21432.2%56.3%
D15QGD Slav, Schlechter variation43343.6%59.5%
D15QGD Slav, Slav gambit7129.6%66.9%
D15QGD Slav, Suechting variation21232.5%60.6%
D15QGD Slav, Tolush-Geller gambit15927.7%41.5%
D16QGD Slav accepted, Alapin variation25137.8%64.3%
D16QGD Slav, Smyslov variation10638.7%60.8%
D16QGD Slav, Soultanbeieff variation53450.0%52.5%
D16QGD Slav, Steiner variation30136.2%62.6%
D17QGD Slav, Carlsbad variation52338.2%61.4%
D17QGD Slav, Czech defence49147.7%55.6%
D17QGD Slav, Krause attack86839.7%58.7%
D17QGD Slav, Wiesbaden variation73542.9%57.1%
D18QGD Slav, Dutch variation42942.2%58.9%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D19QGD Slav, Dutch variation168541.1%56.6%
D19QGD Slav, Dutch variation, main line28943.9%58.0%
D19QGD Slav, Dutch, Saemisch variation250.0%25.0%
D20QGA, 3.e4366140.4%56.5%
D20QGA, Linares variation10536.2%59.0%
D20Queen's gambit accepted127645.4%54.9%
D21QGA, 3.Nf346242.4%57.6%
D21QGA, Alekhine defense, Borisenko-Furman variation4334.9%45.3%
D21QGA, Ericson variation60.0%33.3%
D22QGA, Alekhine defence50540.8%57.6%
D22QGA, Alekhine defence, Alatortsev variation1457.1%42.9%
D22QGA, Haberditz variation21354.5%54.9%
D23QGA, Mannheim variation51141.7%53.7%
D23Queen's gambit accepted7248.6%53.5%
D24QGA, 4.Nc334837.9%52.0%
D24QGA, Bogolyubov variation21745.6%55.5%
D25QGA, 4.e320036.0%58.0%
D25QGA, Flohr variation11927.7%64.3%
D25QGA, Janowsky-Larsen variation60341.0%58.3%
D25QGA, Smyslov variation10851.9%60.2%
D26QGA, 4...e634044.4%53.4%
D26QGA, classical variation90851.9%53.6%
D26QGA, classical variation, 6.O-O20949.3%59.1%
D26QGA, classical, Furman variation560.0%30.0%
D26QGA, classical, Steinitz variation15551.6%61.9%
D27QGA, classical, 6...a6464452.2%55.0%
D27QGA, classical, Geller variation9252.2%57.6%
D27QGA, classical, Rubinstein variation161548.5%56.3%
D28QGA, classical, 7...b531652.2%54.6%
D28QGA, classical, 7.Qe26750.7%61.2%
D28QGA, classical, Flohr variation10.0%0.0%
D29QGA, classical, 8...Bb737141.8%47.3%
D29QGA, classical, Smyslov variation4551.1%43.3%
D30QGD110747.1%52.1%
D30QGD Slav56343.5%54.4%
D30QGD Slav, Semmering variation4337.2%48.8%
D30QGD, Capablanca variation4332.6%58.1%
D30QGD, Capablanca-Duras variation45044.0%53.6%
D30QGD, Hastings variation80146.4%52.3%
D30QGD, Stonewall variation450.0%75.0%
D30QGD, Vienna variation115152.8%52.1%
D30Queen's gambit declined755844.5%55.5%
D31QGD, 3.Nc3125638.9%54.5%
D31QGD, Alapin variation1723.5%64.7%
D31QGD, Charousek (Petrosian) variation213245.8%54.1%
D31QGD, Janowski variation32240.7%54.2%
D31QGD, semi-Slav147139.6%53.9%
D31QGD, semi-Slav, Abrahams variation17434.5%42.5%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
D31QGD, semi-Slav, Marshall gambit129242.6%54.4%
D31QGD, semi-Slav, Noteboom variation35938.2%50.6%
D32QGD, Tarrasch defence56945.2%53.3%
D32QGD, Tarrasch defence, 4.cd ed4233.3%42.9%
D32QGD, Tarrasch defence, Marshall gambit1442.9%57.1%
D32QGD, Tarrasch defence, Tarrasch gambit1553.3%46.7%
D32QGD, Tarrasch, von Hennig-Schara gambit11142.3%61.7%
D33QGD, Tarrasch, Folkestone (Swedish) variation23648.3%56.4%
D33QGD, Tarrasch, Prague variation21341.8%53.3%
D33QGD, Tarrasch, Schlechter-Rubinstein system6134.4%56.6%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation250.0%25.0%
D33QGD, Tarrasch, Wagner variation5154.9%54.9%
D34QGD, Tarrasch, Bogolyubov variation250.0%25.0%
D34QGD, Tarrasch, Prague variation, 7...Be720544.9%55.1%
D34QGD, Tarrasch, Prague variation, 9.Bg561746.5%58.6%
D34QGD, Tarrasch, Prague variation, Normal position75750.1%56.1%
D34QGD, Tarrasch, Reti variation3661.1%61.1%
D35QGD, 3...Nf613937.4%51.1%
D35QGD, Harrwitz attack27150.6%55.5%
D35QGD, exchange variation44342.0%56.2%
D35QGD, exchange, Saemisch variation39847.5%53.6%
D35QGD, exchange, positional line130940.9%54.4%
D35QGD, exchange, positional line, 5...c6103443.0%55.7%
D36QGD, exchange, positional line, 6.Qc248844.1%54.4%
D37QGD, 4.Nf3718446.4%53.3%
D37QGD, classical variation (5.Bf4)523446.0%55.0%
D38QGD, Ragozin variation576346.1%52.8%
D39QGD, Ragozin, Vienna variation181949.3%51.3%
D40QGD, Semi-Tarrasch defence46842.7%54.9%
D40QGD, Semi-Tarrasch defence, Pillsbury variation9048.9%57.8%
D40QGD, Semi-Tarrasch, Levenfish variation540.0%60.0%
D40QGD, Semi-Tarrasch, symmetrical variation2748.1%53.7%
D41QGD, Semi-Tarrasch with e333245.8%56.9%
D41QGD, Semi-Tarrasch, 5.cd80649.1%56.8%
D41QGD, Semi-Tarrasch, Kmoch variation1258.3%45.8%
D41QGD, Semi-Tarrasch, San Sebastian variation2536.0%78.0%
D42QGD, Semi-Tarrasch, 7.Bd341347.2%54.1%
D43QGD semi-Slav926642.0%53.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D44QGD semi-Slav, 5.Bg5 dc24947.4%49.4%
D44QGD semi-Slav, Botvinnik system (anti-Meran)9336.6%54.8%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D44QGD semi-Slav, anti-Meran gambit88534.6%58.9%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation18533.0%65.7%
D44QGD semi-Slav, anti-Meran, Szabo variation2821.4%35.7%
D45QGD semi-Slav, 5...Nd773139.0%51.9%
D45QGD semi-Slav, 5.e350238.2%57.0%
D45QGD semi-Slav, Rubinstein (anti-Meran) system2133.3%45.2%
D45QGD semi-Slav, Stoltz variation1315343.6%53.1%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)281443.6%54.4%
D45QGD semi-Slav, stonewall defence1442.9%50.0%
D46QGD semi-Slav, 6.Bd34535.6%66.7%
D46QGD semi-Slav, Bogolyubov variation18843.6%56.4%
D46QGD semi-Slav, Chigorin defence46446.1%54.5%
D46QGD semi-Slav, Romih variation19235.9%63.8%
D47QGD semi-Slav, 7.Bc47832.1%57.1%
D47QGD semi-Slav, Meran variation150049.2%54.1%
D47QGD semi-Slav, Meran, Wade variation719939.7%53.5%
D47QGD semi-Slav, neo-Meran (Lundin variation)34549.9%54.5%
D48QGD semi-Slav, Meran244.2%43.8%
D48QGD semi-Slav, Meran, 8...a6149149.5%49.0%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
D48QGD semi-Slav, Meran, Reynolds' variation80839.2%56.3%
D48QGD semi-Slav, Meran, old main line12436.3%52.0%
D49QGD semi-Slav, Meran, Blumenfeld variation20443.6%53.2%
D49QGD semi-Slav, Meran, Rabinovich variation7830.8%47.4%
D49QGD semi-Slav, Meran, Rellstab attack1735.3%58.8%
D49QGD semi-Slav, Meran, Sozin variation16943.8%47.3%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
D50QGD, 4.Bg548239.4%58.1%
D50QGD, Been-Koomen variation3650.0%47.2%
D50QGD, Canal (Venice) variation1030.0%55.0%
D50QGD, Semi-Tarrasch7250.0%51.4%
D50QGD, Semi-Tarrasch, Krause variation2100.0%50.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1540.0%53.3%
D51QGD4946.9%58.2%
D51QGD, 4.Bg5 Nbd711139.6%54.1%
D51QGD, 5...c622949.8%49.8%
D51QGD, Alekhine variation40.0%50.0%
D51QGD, Capablanca anti-Cambridge Springs variation4742.6%59.6%
D51QGD, Manhattan variation2650.0%55.8%
D51QGD, Rochlin variation1346.2%46.2%
D52QGD23839.1%54.8%
D52QGD, Cambridge Springs defence4746.8%46.8%
D52QGD, Cambridge Springs defence, 7.cd8330.1%54.8%
D52QGD, Cambridge Springs defence, Argentine variation2437.5%43.8%
D52QGD, Cambridge Springs defence, Bogoljubow variation51349.9%55.6%
D52QGD, Cambridge Springs defence, Capablanca variation3735.1%60.8%
D52QGD, Cambridge Springs defence, Rubinstein variation21738.2%56.0%
D52QGD, Cambridge Springs defence, Yugoslav variation52039.0%56.3%
D53QGD, 4.Bg5 Be7124445.7%55.3%
D53QGD, 4.Bg5 Be7, 5.e3 O-O9545.3%52.1%
D53QGD, Lasker variation633.3%66.7%
D54QGD, Anti-neo-orthodox variation15046.0%55.7%
D55QGD, 6.Nf318936.0%56.1%
D55QGD, Neo-orthodox variation944.4%55.6%
D55QGD, Neo-orthodox variation, 7.Bh418648.4%55.9%
D55QGD, Neo-orthodox variation, 7.Bxf641248.1%51.5%
D55QGD, Petrosian variation40353.8%53.2%
D55QGD, Pillsbury attack250.0%75.0%
D56QGD, Lasker defence57449.7%52.9%
D56QGD, Lasker defence, Teichmann variation12853.1%50.0%
D57QGD, Lasker defence, Bernstein variation3857.9%55.3%
D57QGD, Lasker defence, main line16752.7%55.7%
D58QGD, Tartakower (Makagonov-Bondarevsky) system534146.8%52.1%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd525649.6%46.3%
D59QGD, Tartakower variation13748.2%46.7%
D60QGD, Orthodox defence11833.9%53.4%
D60QGD, Orthodox defence, Botvinnik variation11540.0%51.3%
D60QGD, Orthodox defence, Rauzer variation11448.2%55.7%
D61QGD, Orthodox defence, Rubinstein variation44046.4%53.6%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)25950.2%54.8%
D63QGD, Orthodox defence12346.3%59.8%
D63QGD, Orthodox defence, 7.Rc128640.6%56.3%
D63QGD, Orthodox defence, Capablanca variation540.0%60.0%
D63QGD, Orthodox defence, Pillsbury attack2853.6%58.9%
D63QGD, Orthodox defence, Swiss (Henneberger) variation14044.3%57.1%
D63QGD, Orthodox defence, Swiss, Karlsbad variation37245.2%54.3%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)12448.4%55.6%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation3633.3%61.1%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation2842.9%42.9%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
D65QGD, Orthodox defence, Rubinstein attack, main line3151.6%58.1%
D66QGD, Orthodox defence, Bd3 line34448.0%58.0%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation2642.3%63.5%
D67QGD, Orthodox defence, Bd3 line2055.0%47.5%
D67QGD, Orthodox defence, Bd3 line, 11.O-O6735.8%65.7%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation6755.2%60.4%
D68QGD, Orthodox defence, classical variation8350.6%56.6%
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) defence26438.3%52.5%
D70Neo-Gruenfeld defence33035.8%54.2%
D71Neo-Gruenfeld, 5.cd38146.7%56.7%
D72Neo-Gruenfeld, 5.cd, main line29334.5%61.3%
D73Neo-Gruenfeld, 5.Nf3101451.6%55.6%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O30145.5%57.0%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc324344.9%57.8%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc3633.3%66.7%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb662546.2%57.5%
D77Neo-Gruenfeld, 6.O-O86846.9%54.8%
D78Neo-Gruenfeld, 6.O-O c697944.1%53.4%
D79Neo-Gruenfeld, 6.O-O, main line64949.6%54.2%
D80Gruenfeld defence142245.4%53.8%
D80Gruenfeld, Lundin variation10.0%0.0%
D80Gruenfeld, Stockholm variation97743.6%53.6%
D81Gruenfeld, Russian variation73841.7%59.2%
D82Gruenfeld, 4.Bf471743.4%53.1%
D83Gruenfeld, Gruenfeld gambit10046.0%57.0%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation3158.1%58.1%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation50242.8%58.3%
D84Gruenfeld, Gruenfeld gambit accepted16547.9%57.9%
D85Gruenfeld, exchange variation391348.1%55.9%
D85Gruenfeld, modern exchange variation379347.2%56.3%
D86Gruenfeld, exchange, Larsen variation1136.4%54.5%
D86Gruenfeld, exchange, Simagin's improved variation19940.2%55.3%
D86Gruenfeld, exchange, Simagin's lesser variation6844.1%60.3%
D86Gruenfeld, exchange, classical variation131746.5%55.6%
D87Gruenfeld, exchange, Seville variation9254.3%62.0%
D87Gruenfeld, exchange, Spassky variation66043.2%56.1%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd28041.8%60.5%
D89Gruenfeld, Spassky variation, main line, 13.Bd37540.0%48.0%
D89Gruenfeld, exchange, Sokolsky variation1241.7%45.8%
D90Gruenfeld, Flohr variation41739.3%54.4%
D90Gruenfeld, Schlechter variation7835.9%53.8%
D90Gruenfeld, Three knights variation92448.2%53.7%
D91Gruenfeld, 5.Bg5107140.1%48.3%
D92Gruenfeld, 5.Bf491345.5%55.8%
D93Gruenfeld with Bf4 e338850.0%54.6%
D94Gruenfeld with e3 Bd32540.0%48.0%
D94Gruenfeld, 5.e350543.2%56.0%
D94Gruenfeld, Flohr defence2352.2%60.9%
D94Gruenfeld, Makogonov variation13139.7%49.6%
D94Gruenfeld, Opovcensky variation21942.9%51.6%
D94Gruenfeld, Smyslov defence20247.5%55.9%
D95Gruenfeld with e3 & Qb34637.0%59.8%
D95Gruenfeld, Botvinnik variation12641.3%51.6%
D96Gruenfeld, Russian variation47341.6%52.3%
D97Gruenfeld, Russian variation with e47731.2%61.0%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation200045.5%51.4%
D97Gruenfeld, Russian, Byrne (Simagin) variation19041.1%62.1%
D97Gruenfeld, Russian, Levenfish variation2934.5%62.1%
D97Gruenfeld, Russian, Prins variation50045.0%56.5%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation27345.1%57.7%
D98Gruenfeld, Russian, Keres variation2250.0%47.7%
D98Gruenfeld, Russian, Smyslov variation38341.3%59.3%
D99Gruenfeld defence, Smyslov, Yugoslav variation2722.2%51.9%
D99Gruenfeld defence, Smyslov, main line24841.5%59.5%
E00Catalan opening452841.9%55.0%
E00Neo-Indian (Seirawan) attack28431.0%50.4%
E00Queen's pawn game62238.4%56.7%
E01Catalan, closed80647.5%54.4%
E02Catalan, open, 5.Qa421943.8%58.4%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc416650.6%45.2%
E03Catalan, open, Alekhine variation5038.0%49.0%
E04Catalan, open, 5.Nf3559544.4%53.7%
E05Catalan, open, classical line20552.7%58.0%
E06Catalan, closed, 5.Nf3385450.0%53.8%
E07Catalan, closed, 6...Nbd713943.9%52.9%
E07Catalan, closed, Botvinnik variation12739.4%48.8%
E08Catalan, closed, 7.Qc214136.9%61.7%
E08Catalan, closed, Qc2 & b333241.0%50.6%
E08Catalan, closed, Spassky gambit1127.3%50.0%
E08Catalan, closed, Zagoryansky variation1060.0%50.0%
E09Catalan, closed, Sokolsky variation520.0%50.0%
E09Catalan, closed, main line32137.4%59.2%
E10Blumenfeld counter-gambit40241.0%56.1%
E10Blumenfeld counter-gambit accepted16239.5%56.2%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation26636.1%56.4%
E10Blumenfeld counter-gambit, Spielmann variation17634.7%58.8%
E10Doery defence3336.4%57.6%
E10Dzindzikhashvili defence20742.0%51.9%
E10Queen's pawn game564844.3%55.3%
E11Bogo-Indian defence220940.8%55.3%
E11Bogo-Indian defence, Gruenfeld variation281340.3%56.3%
E11Bogo-Indian defence, Monticelli trap2142.9%40.5%
E11Bogo-Indian defence, Nimzovich variation187940.7%57.3%
E12Queen's Indian defence79241.2%53.9%
E12Queen's Indian, 4.Nc3562040.4%53.2%
E12Queen's Indian, 4.Nc3, Botvinnik variation4628.3%48.9%
E12Queen's Indian, Miles variation182143.3%53.4%
E12Queen's Indian, Petrosian system819743.3%54.3%
E13Queen's Indian, 4.Nc3, main line30436.5%52.8%
E14Queen's Indian, 4.e3209839.5%52.9%
E14Queen's Indian, Averbakh variation425.0%37.5%
E15Queen's Indian, 4.g3340948.2%55.2%
E15Queen's Indian, 4.g3 Bb738541.6%53.8%
E15Queen's Indian, Buerger variation6136.1%60.7%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1705341.6%56.5%
E15Queen's Indian, Rubinstein variation18934.4%60.6%
E16Queen's Indian, Capablanca variation62143.3%57.2%
E16Queen's Indian, Riumin variation29637.8%59.1%
E16Queen's Indian, Yates variation50041.4%57.5%
E17Queen's Indian, 5.Bg2 Be75538.2%46.4%
E17Queen's Indian, Euwe variation8747.1%54.6%
E17Queen's Indian, Opovcensky variation88240.1%55.2%
E17Queen's Indian, anti-Queen's Indian system50442.1%53.6%
E17Queen's Indian, old main line, 6.O-O125743.4%58.0%
E18Queen's Indian, old main line, 7.Nc3201444.0%56.9%
E19Queen's Indian, old main line, 9.Qxc3151647.1%58.0%
E20Nimzo-Indian defence27246.3%53.3%
E20Nimzo-Indian, Kmoch variation124337.4%53.8%
E20Nimzo-Indian, Mikenas attack850.0%62.5%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system63844.5%54.2%
E21Nimzo-Indian, three knights variation344441.5%54.6%
E21Nimzo-Indian, three knights, Euwe variation862.5%56.3%
E21Nimzo-Indian, three knights, Korchnoi variation825.0%37.5%
E22Nimzo-Indian, Spielmann variation69937.9%53.3%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc611843.2%46.2%
E23Nimzo-Indian, Spielmann, Karlsbad variation4136.6%47.6%
E23Nimzo-Indian, Spielmann, San Remo variation2540.0%56.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation20.0%100.0%
E24Nimzo-Indian, Saemisch variation47338.9%53.1%
E24Nimzo-Indian, Saemisch, Botvinnik variation10539.0%44.3%
E25Nimzo-Indian, Saemisch variation21340.8%54.7%
E25Nimzo-Indian, Saemisch, Keres variation34648.0%54.3%
E25Nimzo-Indian, Saemisch, Romanovsky variation14756.5%52.7%
E26Nimzo-Indian, Saemisch variation28036.8%56.3%
E26Nimzo-Indian, Saemisch, O'Kelly variation5839.7%50.9%
E27Nimzo-Indian, Saemisch variation12044.2%49.6%
E28Nimzo-Indian, Saemisch variation36031.7%52.8%
E29Nimzo-Indian, Saemisch, Capablanca variation3842.1%42.1%
E29Nimzo-Indian, Saemisch, main line17136.3%57.3%
E30Nimzo-Indian, Leningrad variation96933.8%50.2%
E30Nimzo-Indian, Leningrad, ...b5 gambit8433.3%47.6%
E31Nimzo-Indian, Leningrad, main line42634.5%49.4%
E32Nimzo-Indian, classical variation778342.9%53.8%
E32Nimzo-Indian, classical, Adorjan gambit13746.0%52.9%
E33Nimzo-Indian, classical, 4...Nc627134.7%56.5%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation46540.0%58.3%
E34Nimzo-Indian, classical, Noa variation102952.5%53.8%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed79449.1%50.5%
E36Nimzo-Indian, classical, Botvinnik variation1643.8%59.4%
E36Nimzo-Indian, classical, Noa variation, 5.a347444.1%53.7%
E36Nimzo-Indian, classical, Noa variation, main line10.0%0.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc255947.6%61.0%
E37Nimzo-Indian, classical, San Remo variation1127.3%59.1%
E38Nimzo-Indian, classical, 4...c577638.3%59.5%
E39Nimzo-Indian, classical, Pirc variation114340.6%54.9%
E40Nimzo-Indian, 4.e328533.7%56.5%
E40Nimzo-Indian, 4.e3, Taimanov variation23534.0%60.0%
E41Nimzo-Indian, 4.e3 c5103644.5%54.9%
E41Nimzo-Indian, e3, Huebner variation53734.3%51.2%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)85047.4%54.3%
E43Nimzo-Indian, Fischer variation76236.9%53.6%
E44Nimzo-Indian, Fischer variation, 5.Ne273039.3%55.5%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation52641.4%54.2%
E46Nimzo-Indian, 4.e3 O-O12138.0%52.1%
E46Nimzo-Indian, Reshevsky variation116443.8%51.7%
E46Nimzo-Indian, Simagin variation21343.7%48.1%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd386945.6%52.5%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d575743.7%51.6%
E49Nimzo-Indian, 4.e3, Botvinnik system30344.2%56.1%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d529543.1%50.3%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d536949.9%51.8%
E51Nimzo-Indian, 4.e3, Ragozin variation4835.4%67.7%
E52Nimzo-Indian, 4.e3, main line with ...b668840.3%50.9%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd79446.8%52.1%
E53Nimzo-Indian, 4.e3, Keres variation14840.5%50.7%
E53Nimzo-Indian, 4.e3, main line with ...c551443.6%55.1%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc135448.6%55.6%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation4358.1%64.0%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation206048.6%55.5%
E56Nimzo-Indian, 4.e3, main line with 7...Nc652552.0%55.5%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd1338.5%57.7%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3161244.9%52.8%
E59Nimzo-Indian, 4.e3, main line79643.5%53.9%
E60King's Indian defence137233.2%55.1%
E60King's Indian, 3.Nf3384240.0%57.4%
E60King's Indian, 3.g3241242.2%55.5%
E60King's Indian, 3.g3, counterthrust variation1729.4%32.4%
E60King's Indian, Anti-Gruenfeld11135.1%56.3%
E60King's Indian, Danube gambit1241.7%54.2%
E60Queen's pawn, Mengarini attack3935.9%61.5%
E61King's Indian defence, 3.Nc3154735.6%55.5%
E61King's Indian, Smyslov system12235.2%52.9%
E62King's Indian, fianchetto variation9638.5%54.7%
E62King's Indian, fianchetto with ...Nc629032.4%55.9%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation62533.0%60.2%
E62King's Indian, fianchetto, Larsen system34041.5%61.3%
E62King's Indian, fianchetto, Simagin variation10131.7%64.4%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation38635.0%57.6%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation38637.0%59.5%
E63King's Indian, fianchetto, Panno variation244038.0%57.0%
E64King's Indian, fianchetto, Yugoslav system15142.4%58.3%
E65King's Indian, fianchetto, Yugoslav, 7.O-O31346.0%53.7%
E66King's Indian, fianchetto, Yugoslav Panno38833.2%57.6%
E67King's Indian, fianchetto with ...Nd713340.6%57.1%
E67King's Indian, fianchetto, classical variation63441.6%54.9%
E68King's Indian, fianchetto, classical variation, 8.e4147439.7%59.9%
E69King's Indian, fianchetto, classical main line56033.8%62.4%
E70King's Indian, 4.e4133432.8%58.8%
E70King's Indian, Kramer system51630.8%56.9%
E70King's Indian, accelerated Averbakh system19735.5%52.8%
E71King's Indian, Makagonov system (5.h3)103534.9%59.7%
E72King's Indian with e4 & g314834.5%55.7%
E72King's Indian, Pomar system6036.7%56.7%
E73King's Indian, 5.Be24729.8%59.6%
E73King's Indian, Averbakh system130334.3%56.1%
E73King's Indian, Semi-Averbakh system12237.7%58.2%
E74King's Indian, Averbakh, 6...c551037.8%57.9%
E75King's Indian, Averbakh, main line25033.2%56.6%
E76King's Indian, Four pawns attack34636.7%58.5%
E76King's Indian, Four pawns attack, dynamic line32237.0%51.1%
E77King's Indian, Four pawns attack21531.6%59.5%
E77King's Indian, Four pawns attack, 6.Be24740.4%45.7%
E77King's Indian, Four pawns attack, Florentine gambit1838.9%41.7%
E78King's Indian, Four pawns attack, with Be2 and Nf311139.6%57.7%
E79King's Indian, Four pawns attack, main line5558.2%56.4%
E80King's Indian, Saemisch variation68233.9%58.9%
E81King's Indian, Saemisch, 5...O-O280634.8%55.1%
E81King's Indian, Saemisch, Byrne variation10340.8%57.3%
E82King's Indian, Saemisch, double fianchetto variation19337.3%58.5%
E83King's Indian, Saemisch, 6...Nc617633.0%53.4%
E83King's Indian, Saemisch, Panno formation44437.6%56.6%
E83King's Indian, Saemisch, Ruban variation2138.1%47.6%
E84King's Indian, Saemisch, Panno main line71136.8%54.6%
E85King's Indian, Saemisch, orthodox variation19438.1%54.6%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c662232.2%53.2%
E87King's Indian, Saemisch, orthodox, 7.d549126.5%56.6%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
E88King's Indian, Saemisch, orthodox, 7.d5 c648033.8%57.5%
E89King's Indian, Saemisch, orthodox main line8330.1%54.8%
E90King's Indian, 5.Nf3120833.0%56.7%
E90King's Indian, Larsen variation13834.1%59.1%
E90King's Indian, Zinnowitz variation7038.6%53.6%
E91King's Indian, 6.Be278434.8%64.1%
E91King's Indian, Kazakh variation35636.5%57.6%
E92King's Indian, Andersson variation36955.0%48.6%
E92King's Indian, Gligoric-Taimanov system167335.4%58.5%
E92King's Indian, Petrosian system14127.0%53.2%
E92King's Indian, Petrosian system, Stein variation71333.1%53.9%
E92King's Indian, classical variation3729.7%47.3%
E93King's Indian, Petrosian system, main line12432.3%50.8%
E94King's Indian, orthodox variation116438.6%54.7%
E94King's Indian, orthodox, 7...Nbd7102334.8%59.8%
E94King's Indian, orthodox, Donner variation28637.1%60.1%
E95King's Indian, orthodox, 7...Nbd7, 8.Re152938.8%55.7%
E96King's Indian, orthodox, 7...Nbd7, main line10138.6%58.9%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)452033.6%56.0%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack137535.7%58.3%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne196626.9%61.3%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack15321.6%61.8%
E99King's Indian, orthodox, Aronin-Taimanov, main line6930.4%63.0%

Created in 2005-2013 by CCRL team
Last games added on May 24, 2020