CCRL 40/40
Downloads and Statistics
July 15, 2017
Testing summary:
Total: 726'377 games
played by 1'902 programs
99634 CPU days (X2 4600+)

White wins: 249'978 (34.4%)
Black wins: 185'669 (25.6%)
Draws: 290'730 (40.0%)
White score: 54.4%

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 attack10.0%100.0%
A00Anderssen's opening36041.4%50.7%
A00Anti-Borg (Desprez) opening30.0%33.3%
A00Battambang opening1631.3%46.9%
A00Benko's opening525541.4%52.2%
A00Benko's opening, reversed Alekhine11342.5%48.7%
A00Clemenz (Mead's, Basman's or de Klerk's) opening2931.0%43.1%
A00Dunst (Sleipner, Heinrichsen) opening137335.4%49.9%
A00Durkin's attack650.0%41.7%
A00Global opening425.0%62.5%
A00Grob's attack18643.5%34.7%
A00Grob, Fritz gambit5143.1%27.5%
A00Grob, Romford counter-gambit425.0%62.5%
A00Grob, spike attack633.3%33.3%
A00Lasker simul special333.3%50.0%
A00Mieses opening11530.4%52.6%
A00Novosibirsk opening2133.3%50.0%
A00Polish (Sokolsky) opening149438.0%48.3%
A00Polish, Outflank variation10244.1%47.5%
A00Saragossa opening28028.9%49.1%
A00Van't Kruijs opening44339.7%51.5%
A00Ware (Meadow Hay) opening425.0%62.5%
A01Nimzovich-Larsen attack51537.1%52.1%
A01Nimzovich-Larsen attack, Dutch variation1330.8%46.2%
A01Nimzovich-Larsen attack, English variation15036.7%50.3%
A01Nimzovich-Larsen attack, Indian variation22931.0%49.6%
A01Nimzovich-Larsen attack, classical variation84936.2%50.2%
A01Nimzovich-Larsen attack, modern variation254940.1%50.5%
A01Nimzovich-Larsen attack, symmetrical variation52840.3%48.2%
A02Bird's opening266336.2%48.9%
A02Bird's opening, Swiss gambit250.0%75.0%
A02Bird, From gambit14834.5%50.3%
A02Bird, From gambit, Lasker variation2955.2%58.6%
A02Bird, From gambit, Lipke variation10.0%0.0%
A02Bird, Hobbs gambit560.0%70.0%
A03Bird's opening286536.1%47.7%
A03Bird's opening, Lasker variation8027.5%42.5%
A03Bird's opening, Williams gambit1735.3%70.6%
A03Mujannah opening450.0%25.0%
A04Reti opening669838.0%54.2%
A04Reti v Dutch85934.8%58.5%
A04Reti, Herrstroem gambit20.0%100.0%
A04Reti, Lisitsin gambit deferred1816.7%75.0%
A04Reti, Pirc-Lisitsin gambit11929.4%50.0%
A04Reti, Wade defence20.0%50.0%
A05Reti opening290236.7%53.3%
A05Reti, King's Indian attack107540.3%53.5%
A05Reti, King's Indian attack, Reti-Smyslov variation4938.8%56.1%
A05Reti, King's Indian attack, Spassky's variation26541.1%51.9%
A06Reti opening55837.5%53.3%
A06Reti, Nimzovich-Larsen attack256741.3%49.9%
A06Reti, old Indian attack8924.7%48.3%
A06Santasiere's folly9838.8%42.9%
A06Tennison (Lemberg, Zukertort) gambit1656.3%40.6%
A07Reti, King's Indian attack186542.8%53.0%
A07Reti, King's Indian attack (Barcza system)381441.2%53.9%
A07Reti, King's Indian attack (with ...c5)16141.6%50.0%
A07Reti, King's Indian attack, Keres variation61734.5%54.7%
A07Reti, King's Indian attack, Pachman system10538.1%53.3%
A07Reti, King's Indian attack, Yugoslav variation155039.8%52.7%
A08Reti, King's Indian attack49342.0%52.4%
A08Reti, King's Indian attack, French variation24837.1%48.0%
A09Reti accepted21940.2%52.1%
A09Reti accepted, Keres variation3831.6%68.4%
A09Reti opening48039.8%52.8%
A09Reti, advance variation65740.0%48.9%
A10English opening230237.7%54.7%
A10English, Adorjan defence31637.3%55.1%
A10English, Anglo-Dutch defense57532.5%53.5%
A10English, Jaenisch gambit20.0%100.0%
A11English, Caro-Kann defensive system111439.9%54.2%
A12English, Bled variation1643.8%59.4%
A12English, Capablanca's variation6235.5%46.8%
A12English, Caro-Kann defensive system15437.7%48.7%
A12English, Caro-Kann defensive system, Bogolyubov variation7647.4%52.6%
A12English, London defensive system11842.4%52.5%
A12English, New York (London) defensive system3250.0%43.8%
A12English, Torre defensive system3644.4%55.6%
A13English opening173336.8%51.5%
A13English opening, Agincourt variation111439.5%54.1%
A13English, Kurajica defence5731.6%57.9%
A13English, Neo-Catalan64040.3%53.0%
A13English, Neo-Catalan accepted101045.6%56.9%
A13English, Romanishin gambit24241.7%56.4%
A13English, Wimpey system10240.2%51.5%
A14English, Neo-Catalan declined73743.1%54.3%
A14English, Symmetrical, Keres defence49446.6%57.1%
A15English opening928542.4%53.6%
A15English, 1...Nf6 (Anglo-Indian defense)99439.5%55.3%
A16English opening117835.7%52.8%
A16English, Anglo-Gruenfeld defense20742.0%52.9%
A16English, Anglo-Gruenfeld defense, Korchnoi variation8836.4%58.0%
A16English, Anglo-Gruenfeld, Czech defense15433.8%63.6%
A16English, Anglo-Gruenfeld, Smyslov defense14832.4%55.4%
A17English opening20938.3%53.6%
A17English, Nimzo-English opening156139.3%53.6%
A17English, Queens Indian formation20836.1%59.9%
A17English, Queens Indian, Romanishin variation5628.6%58.9%
A18English, Mikenas-Carls variation8145.7%58.6%
A18English, Mikenas-Carls, Flohr variation27338.5%59.2%
A18English, Mikenas-Carls, Kevitz variation2025.0%47.5%
A19English, Mikenas-Carls, Sicilian variation31043.9%54.2%
A20English opening487138.1%54.5%
A20English, Nimzovich variation5836.2%56.0%
A20English, Nimzovich, Flohr variation13338.3%41.7%
A21English opening127633.5%54.4%
A21English, Keres variation1030.0%45.0%
A21English, Kramnik-Shirov counterattack165241.0%52.1%
A21English, Smyslov defence3630.6%59.7%
A21English, Troeger defence11629.3%53.4%
A22English opening67136.4%50.7%
A22English, Bellon gambit1136.4%63.6%
A22English, Bremen, Smyslov system137138.6%49.0%
A22English, Bremen, reverse dragon60740.4%50.2%
A22English, Carls' Bremen system32839.6%54.3%
A23English, Bremen system, Keres variation52140.7%48.2%
A24English, Bremen system with ...g614040.0%48.6%
A25English, Sicilian reversed65433.6%51.8%
A25English, closed system70034.7%54.1%
A25English, closed system (without ...d6)11628.4%55.6%
A25English, closed, 5.Rb139339.9%51.5%
A25English, closed, 5.Rb1 Taimanov variation20.0%50.0%
A25English, closed, Hort variation3636.1%54.2%
A25English, closed, Taimanov variation2010.0%65.0%
A26English, Botvinnik system28237.9%52.7%
A26English, closed system27438.3%51.6%
A27English, three knights system43934.9%53.2%
A28English, Bradley Beach variation5020.0%38.0%
A28English, Nenarokov variation12040.0%51.7%
A28English, four knights system33644.3%51.0%
A28English, four knights, 4.e390336.5%51.8%
A28English, four knights, Capablanca variation37136.9%55.7%
A28English, four knights, Marini variation71339.3%50.9%
A28English, four knights, Nimzovich variation43435.0%53.9%
A28English, four knights, Romanishin variation41250.7%53.0%
A28English, four knights, Stean variation8342.2%59.6%
A29English, four knights, kingside fianchetto568740.9%51.8%
A30English, symmetrical variation270539.7%54.5%
A30English, symmetrical, hedgehog system247446.6%55.7%
A30English, symmetrical, hedgehog, flexible formation17443.1%54.9%
A31English, symmetrical, Benoni formation79940.4%56.1%
A32English, symmetrical variation31541.0%58.3%
A33English, symmetrical variation132348.1%54.8%
A33English, symmetrical, Geller variation55437.9%54.0%
A34English, symmetrical variation84538.5%53.8%
A34English, symmetrical, Rubinstein system34539.1%52.0%
A34English, symmetrical, three knights system102841.5%55.3%
A35English, symmetrical variation19434.0%52.6%
A35English, symmetrical, four knights system184443.3%53.6%
A36English, symmetrical variation10636.8%56.1%
A36English, symmetrical, Botvinnik system14732.7%51.7%
A36English, symmetrical, Botvinnik system reversed5534.5%59.1%
A36English, ultra-symmetrical variation111238.1%53.2%
A37English, symmetrical variation84940.5%49.9%
A37English, symmetrical, Botvinnik system reversed63137.4%50.4%
A38English, symmetrical variation49145.2%55.4%
A38English, symmetrical, main line with b31100.0%50.0%
A38English, symmetrical, main line with d311950.4%52.9%
A39English, symmetrical, main line with d440441.6%57.4%
A40Beefeater defence2920.7%69.0%
A40Modern defence76337.6%58.3%
A40Polish defence4843.8%51.0%
A40Queen's pawn190137.0%55.1%
A40Queen's pawn, Charlick (Englund) gambit2045.0%62.5%
A40Queen's pawn, English defence15142.4%63.6%
A40Queen's pawn, Franco-Indian (Keres) defence77837.9%55.1%
A40Queen's pawn, Keres defence144243.6%56.8%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence14930.9%59.1%
A41Modern defence6031.7%55.8%
A41Old Indian defence59530.4%54.9%
A41Old Indian, Tartakower (Wade) variation76734.2%61.3%
A41Queen's Pawn176535.4%54.2%
A41Robatsch defence, Rossolimo variation10536.2%49.5%
A42Modern defence, Averbakh system33231.9%58.7%
A42Modern defence, Averbakh system, Kotov variation10123.8%64.4%
A42Modern defence, Averbakh system, Randspringer variation90.0%77.8%
A42Pterodactyl defence31837.1%64.2%
A43Hawk (Habichd) defence366.7%33.3%
A43Old Benoni defence121335.2%59.4%
A43Old Benoni, Franco-Benoni defence6734.3%60.4%
A43Old Benoni, Mujannah formation3138.7%67.7%
A43Old Benoni, Schmid's system2317.4%56.5%
A44Old Benoni defence1643.8%65.6%
A44Semi-Benoni (`blockade variation')8431.0%61.9%
A45Blackmar-Diemer gambit15729.9%48.1%
A45Canard opening1136.4%27.3%
A45Paleface attack3234.4%45.3%
A45Queen's pawn game171638.7%54.0%
A45Queen's pawn, Bronstein gambit1030.0%55.0%
A45Trompovsky attack (Ruth, Opovcensky opening)315235.3%52.1%
A46Queen's pawn game250240.2%55.0%
A46Queen's pawn, Torre attack113036.6%51.8%
A46Queen's pawn, Torre attack, Wagner gambit333.3%83.3%
A46Queen's pawn, Yusupov-Rubinstein system66240.3%52.3%
A47Queen's Indian defence42838.8%52.1%
A47Queen's Indian, Marienbad system6735.8%53.7%
A47Queen's Indian, Marienbad system, Berg variation1250.0%58.3%
A48King's Indian, East Indian defence73038.9%51.2%
A48King's Indian, London system91239.4%53.2%
A48King's Indian, Torre attack138639.5%49.2%
A49King's Indian, fianchetto without c492940.6%56.4%
A50Kevitz-Trajkovich defence28538.6%57.5%
A50Queen's Indian accelerated12544.0%58.8%
A50Queen's pawn game48737.8%55.2%
A51Budapest defence declined520.0%70.0%
A51Budapest, Fajarowicz variation3525.7%61.4%
A51Budapest, Fajarowicz, Steiner variation10.0%0.0%
A52Budapest defence1850.0%52.8%
A52Budapest, Adler variation14147.5%55.0%
A52Budapest, Alekhine variation1323.1%65.4%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
A52Budapest, Alekhine, Abonyi variation5425.9%61.1%
A52Budapest, Rubinstein variation33939.8%60.3%
A53Old Indian defence82639.6%56.0%
A53Old Indian, Janowski variation10431.7%58.2%
A54Old Indian, Dus-Khotimirsky variation728.6%42.9%
A54Old Indian, Ukrainian variation7851.3%55.1%
A54Old Indian, Ukrainian variation, 4.Nf317637.5%57.4%
A55Old Indian, main line38638.9%58.3%
A56Benoni defence55133.2%59.1%
A56Benoni defence, Hromodka system36023.9%65.6%
A56Czech Benoni defence26528.3%67.7%
A56Czech Benoni, King's Indian system3411.8%64.7%
A56Vulture defence1100.0%50.0%
A57Benko gambit55337.3%57.0%
A57Benko gambit half accepted71239.6%56.7%
A57Benko gambit, Zaitsev system6439.1%44.5%
A58Benko gambit accepted61133.2%59.0%
A58Benko gambit, Nd2 variation837.5%56.3%
A58Benko gambit, fianchetto variation13943.9%61.5%
A59Benko gambit3644.4%61.1%
A59Benko gambit, 7.e4633.3%50.0%
A59Benko gambit, Ne2 variation30.0%33.3%
A59Benko gambit, main line11540.9%66.5%
A60Benoni defence10325.2%64.1%
A61Benoni defence45631.4%62.8%
A61Benoni, Nimzovich (knight's tour) variation33828.1%59.3%
A61Benoni, Uhlmann variation19222.4%39.3%
A61Benoni, fianchetto variation1414.3%78.6%
A62Benoni, fianchetto variation63736.3%56.3%
A63Benoni, fianchetto, 9...Nbd76633.3%65.2%
A64Benoni, fianchetto, 11...Re810540.0%41.9%
A65Benoni, 6.e428126.3%55.5%
A66Benoni, Mikenas variation1723.5%47.1%
A66Benoni, pawn storm variation540.0%60.0%
A67Benoni, Taimanov variation18522.7%63.8%
A68Benoni, four pawns attack7135.2%55.6%
A69Benoni, four pawns attack, main line7339.7%44.5%
A70Benoni, classical with e4 and Nf350538.2%59.1%
A70Benoni, classical without 9.O-O425.0%37.5%
A71Benoni, classical, 8.Bg58325.3%54.8%
A72Benoni, classical without 9.O-O4641.3%62.0%
A73Benoni, classical, 9.O-O4623.9%57.6%
A74Benoni, classical, 9...a6, 10.a41942.1%73.7%
A75Benoni, classical with ...a6 and 10...Bg44325.6%70.9%
A76Benoni, classical, 9...Re88439.3%64.9%
A77Benoni, classical, 9...Re8, 10.Nd211526.1%67.8%
A78Benoni, classical with ...Re8 and ...Na63333.3%59.1%
A79Benoni, classical, 11.f35228.8%58.7%
A80Dutch163935.3%54.1%
A80Dutch, 2.Bg5 variation71232.4%54.0%
A80Dutch, Korchnoi attack837.5%43.8%
A80Dutch, Krejcik gambit26534.3%54.2%
A80Dutch, Manhattan (Alapin, Ulvestad) variation1741.2%61.8%
A81Dutch defence278238.5%56.9%
A81Dutch defence, Blackburne variation4528.9%52.2%
A81Dutch, Leningrad, Basman system450.0%75.0%
A81Dutch, Leningrad, Karlsbad variation475.0%62.5%
A82Dutch, Balogh defence633.3%83.3%
A82Dutch, Staunton gambit9535.8%33.7%
A82Dutch, Staunton gambit, Tartakower variation616.7%41.7%
A83Dutch, Staunton gambit, Alekhine variation250.0%25.0%
A83Dutch, Staunton gambit, Chigorin variation6933.3%52.9%
A83Dutch, Staunton gambit, Lasker variation1145.5%40.9%
A83Dutch, Staunton gambit, Nimzovich variation20.0%0.0%
A83Dutch, Staunton gambit, Staunton's line10735.5%49.5%
A84Dutch defence48839.1%55.6%
A84Dutch defence, Rubinstein variation23932.6%59.0%
A84Dutch, Staunton gambit deferred955.6%27.8%
A85Dutch with c4 & Nc356335.5%54.5%
A86Dutch with c4 & g37739.0%66.2%
A86Dutch, Hort-Antoshin system2100.0%50.0%
A86Dutch, Leningrad variation11936.1%55.0%
A87Dutch, Leningrad, main variation29240.1%54.3%
A88Dutch, Leningrad, main variation with c675638.2%57.1%
A89Dutch, Leningrad, main variation with Nc631736.3%63.6%
A90Dutch defence89939.2%61.1%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation16336.8%61.3%
A90Dutch-Indian, Alekhine variation3735.1%55.4%
A91Dutch defence7832.1%51.9%
A92Dutch defence3650.0%55.6%
A92Dutch defence, Alekhine variation3540.0%62.9%
A92Dutch, stonewall variation5648.2%58.0%
A92Dutch, stonewall with Nc31030.0%45.0%
A93Dutch, stonewall, Botwinnik variation7129.6%57.0%
A94Dutch, stonewall with Ba32958.6%60.3%
A95Dutch, stonewall with Nc319929.1%58.3%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
A96Dutch, classical variation16634.9%62.0%
A97Dutch, Ilyin-Genevsky variation1618.8%59.4%
A97Dutch, Ilyin-Genevsky, Winter variation5740.4%64.0%
A98Dutch, Ilyin-Genevsky variation with Qc22433.3%50.0%
A99Dutch, Ilyin-Genevsky variation with b37835.9%64.1%
B00Carr's defence450.0%50.0%
B00Corn stalk defence250.0%25.0%
B00KP, Colorado counter20.0%50.0%
B00KP, Nimzovich defence39332.8%61.5%
B00KP, Nimzovich defence, Bogolyubov variation8630.2%59.3%
B00King's pawn opening112937.3%57.3%
B00Lemming defence837.5%56.3%
B00Owen defence26133.3%61.5%
B00Reversed Grob (Borg/Basman defence/macho Grob)1631.3%84.4%
B00St. George (Baker) defence3839.5%59.2%
B01Scandinavian (centre counter) defence228441.8%57.1%
B01Scandinavian defence72740.9%57.4%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
B01Scandinavian defence, Lasker variation11332.7%65.0%
B01Scandinavian gambit13740.9%52.6%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
B01Scandinavian, Icelandic gambit5248.1%54.8%
B01Scandinavian, Kiel variation728.6%85.7%
B01Scandinavian, Marshall variation51044.3%59.8%
B01Scandinavian, Mieses-Kotrvc gambit862.5%43.8%
B01Scandinavian, Pytel-Wade variation237144.5%58.1%
B01Scandinavian, Richter variation250.0%75.0%
B02Alekhine's defence49735.2%54.8%
B02Alekhine's defence, Brooklyn defence714.3%35.7%
B02Alekhine's defence, Kmoch variation714.3%21.4%
B02Alekhine's defence, Krejcik variation250.0%25.0%
B02Alekhine's defence, Maroczy variation8636.0%57.6%
B02Alekhine's defence, Saemisch attack23338.6%47.6%
B02Alekhine's defence, Scandinavian variation13336.1%55.6%
B02Alekhine's defence, Spielmann variation1435.7%46.4%
B02Alekhine's defence, Steiner variation944.4%55.6%
B02Alekhine's defence, Two pawns' (Lasker's) attack25444.5%54.1%
B03Alekhine's defence6929.0%62.3%
B03Alekhine's defence, Balogh variation825.0%75.0%
B03Alekhine's defence, exchange variation52339.2%58.6%
B03Alekhine's defence, exchange, Karpov variation650.0%58.3%
B03Alekhine's defence, four pawns attack20831.7%65.9%
B03Alekhine's defence, four pawns attack, 6...Nc61225.0%45.8%
B03Alekhine's defence, four pawns attack, 7.Be310035.0%66.5%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
B03Alekhine's defence, four pawns attack, Planinc variation333.3%50.0%
B03Alekhine's defence, four pawns attack, Trifunovic variation5435.2%67.6%
B03Alekhine's defence, four pawns attack, fianchetto variation10130.7%56.9%
B04Alekhine's defence, modern variation22133.5%61.1%
B04Alekhine's defence, modern, Keres variation4235.7%72.6%
B04Alekhine's defence, modern, Larsen variation72242.2%60.7%
B04Alekhine's defence, modern, Schmid variation13636.0%61.4%
B04Alekhine's defence, modern, fianchetto variation58534.0%58.2%
B05Alekhine's defence, modern variation, 4...Bg454732.2%65.6%
B05Alekhine's defence, modern, Alekhine variation742.9%50.0%
B05Alekhine's defence, modern, Flohr variation8235.4%64.0%
B05Alekhine's defence, modern, Panov variation911.1%50.0%
B05Alekhine's defence, modern, Vitolins attack20.0%50.0%
B06Robatsch (modern) defence457636.1%56.6%
B06Robatsch defence55936.5%58.3%
B06Robatsch defence, Gurgenidze variation4440.9%54.5%
B06Robatsch defence, Pseudo-Austrian attack41833.3%56.1%
B06Robatsch defence, Two knights variation29833.2%62.2%
B06Robatsch defence, Two knights, Suttles variation95338.5%58.5%
B06Robatsch defence, three pawns attack13531.1%63.7%
B07Pirc defence136837.4%57.1%
B07Pirc, 150 attack20638.8%61.2%
B07Pirc, Byrne variation30932.0%57.8%
B07Pirc, Chinese variation250.0%25.0%
B07Pirc, Holmov system1844.4%61.1%
B07Pirc, Sveshnikov system26234.4%51.9%
B07Pirc, Ufimtsev-Pytel variation31138.6%59.8%
B07Pirc, bayonet (Mariotti) attack2755.6%57.4%
B07Robatsch defence, Geller's system54036.7%57.2%
B08Pirc, classical (two knights) system42936.4%57.6%
B08Pirc, classical system, 5.Be2205138.8%57.0%
B08Pirc, classical, h3 system35738.4%59.2%
B09Pirc, Austrian attack16540.6%59.7%
B09Pirc, Austrian attack, 6.Bd3103938.8%60.2%
B09Pirc, Austrian attack, 6.Be325632.8%59.0%
B09Pirc, Austrian attack, 6.e58343.4%56.6%
B09Pirc, Austrian attack, Ljubojevic variation1442.9%50.0%
B09Pirc, Austrian attack, dragon formation72838.7%58.7%
B10Caro-Kann defence186035.6%53.1%
B10Caro-Kann, Goldman (Spielmann) variation4544.4%46.7%
B10Caro-Kann, Hillbilly attack20.0%50.0%
B10Caro-Kann, Two knights variation26836.6%60.1%
B10Caro-Kann, anti-Caro-Kann defence48933.3%59.8%
B10Caro-Kann, anti-anti-Caro-Kann defence120648.4%51.9%
B10Caro-Kann, closed (Breyer) variation54438.8%52.3%
B11Caro-Kann, Two knights, 3...Bg467338.8%55.9%
B12Caro-Kann defence18036.1%51.9%
B12Caro-Kann, 3.Nd213743.1%58.0%
B12Caro-Kann, Edinburgh variation2339.1%54.3%
B12Caro-Kann, Tartakower (fantasy) variation48937.6%54.2%
B12Caro-Kann, advance variation875337.9%56.3%
B12Caro-Kann, advance, Short variation3834.2%51.3%
B12Caro-Masi defence1100.0%50.0%
B12de Bruycker defence520.0%70.0%
B13Caro-Kann, Panov-Botvinnik attack90048.0%53.0%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation2630.8%50.0%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1118.2%54.5%
B13Caro-Kann, Panov-Botvinnik, Herzog defence1435.7%46.4%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation10.0%100.0%
B13Caro-Kann, Panov-Botvinnik, normal variation8251.2%57.3%
B13Caro-Kann, exchange variation70340.0%51.8%
B13Caro-Kann, exchange, Rubinstein variation11935.3%52.1%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6164245.9%55.5%
B14Caro-Kann, Panov-Botvinnik attack, 5...g628350.2%53.4%
B15Caro-Kann defence21132.2%51.7%
B15Caro-Kann, Alekhine gambit2133.3%50.0%
B15Caro-Kann, Forgacs variation20841.3%55.3%
B15Caro-Kann, Gurgenidze counter-attack366.7%66.7%
B15Caro-Kann, Gurgenidze system28738.7%57.3%
B15Caro-Kann, Rasa-Studier gambit911.1%38.9%
B15Caro-Kann, Tartakower (Nimzovich) variation27441.2%55.3%
B16Caro-Kann, Bronstein-Larsen variation42831.1%62.0%
B17Caro-Kann, Steinitz variation346342.7%53.8%
B18Caro-Kann, classical variation132944.7%54.2%
B18Caro-Kann, classical, 6.h445139.0%54.8%
B18Caro-Kann, classical, Flohr variation6656.1%49.2%
B18Caro-Kann, classical, Maroczy attack1020.0%40.0%
B19Caro-Kann, classical, 7...Nd736051.4%53.2%
B19Caro-Kann, classical, Spassky variation256739.2%56.6%
B20Sicilian defence179235.4%50.6%
B20Sicilian, Keres variation (2.Ne2)54440.3%52.7%
B20Sicilian, Steinitz variation30843.8%48.9%
B20Sicilian, wing gambit5750.9%41.2%
B20Sicilian, wing gambit, Carlsbad variation944.4%44.4%
B20Sicilian, wing gambit, Marshall variation6129.5%55.7%
B21Sicilian, Andreaschek gambit1442.9%57.1%
B21Sicilian, Grand Prix attack139035.8%52.4%
B21Sicilian, Smith-Morra gambit60941.4%46.6%
B22Sicilian, 2.c3, Heidenfeld variation5726.3%44.7%
B22Sicilian, Alapin's variation (2.c3)532843.4%54.5%
B23Sicilian, Grand Prix attack60036.0%49.7%
B23Sicilian, Grand Prix attack, Schofman variation14640.4%53.1%
B23Sicilian, chameleon variation48634.2%58.2%
B23Sicilian, closed256538.2%51.6%
B23Sicilian, closed, 2...Nc6147041.5%51.9%
B23Sicilian, closed, Korchnoi variation10753.3%51.9%
B24Sicilian, closed37236.6%48.9%
B24Sicilian, closed, Smyslov variation2133.3%54.8%
B25Sicilian, closed20537.6%49.0%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)3327.3%47.0%
B25Sicilian, closed, 6.f438240.3%50.8%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)2646.2%53.8%
B26Sicilian, closed, 6.Be353833.1%49.8%
B27Sicilian defence1631.3%53.1%
B27Sicilian, Hungarian variation319341.0%57.8%
B27Sicilian, Katalimov variation12146.3%62.8%
B27Sicilian, Quinteros variation3537.1%64.3%
B28Sicilian, O'Kelly variation25937.8%55.6%
B29Sicilian, Nimzovich-Rubinstein variation52840.7%60.7%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit3056.7%45.0%
B30Sicilian defence216540.6%54.6%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)370837.3%56.1%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)235041.3%56.0%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation1560.0%50.0%
B32Sicilian defence71838.2%56.4%
B32Sicilian, Flohr variation18733.2%61.0%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation101539.6%56.7%
B32Sicilian, Labourdonnais-Loewenthal variation19242.7%60.4%
B32Sicilian, Nimzovich variation2339.1%54.3%
B33Sicilian defence38534.0%54.2%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation84035.1%55.2%
B33Sicilian, Pelikan, Bird variation21838.5%64.2%
B33Sicilian, Pelikan, Chelyabinsk variation197235.6%57.3%
B33Sicilian, Sveshnikov variation127738.5%50.8%
B34Sicilian, accelerated fianchetto, exchange variation1747.1%70.6%
B34Sicilian, accelerated fianchetto, modern variation29236.6%52.6%
B35Sicilian, accelerated fianchetto, modern variation with Bc4178943.4%52.8%
B36Sicilian, accelerated fianchetto, Gurgenidze variation22142.5%60.6%
B36Sicilian, accelerated fianchetto, Maroczy bind84944.6%58.1%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg711447.4%55.3%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3104744.3%57.4%
B39Sicilian, accelerated fianchetto, Breyer variation57940.2%58.1%
B40Sicilian defence417539.0%54.2%
B40Sicilian, Anderssen variation64140.4%58.0%
B40Sicilian, Marshall variation10.0%100.0%
B40Sicilian, Pin variation (Sicilian counter-attack)1346.2%69.2%
B40Sicilian, Pin, Koch variation3625.0%79.2%
B41Sicilian, Kan variation19040.5%55.0%
B41Sicilian, Kan, Maroczy bind (Reti variation)40335.7%57.6%
B41Sicilian, Kan, Maroczy bind - Bronstein variation1936.8%28.9%
B42Sicilian, Kan, 5.Bd3153536.7%58.2%
B42Sicilian, Kan, Gipslis variation7839.7%63.5%
B42Sicilian, Kan, Polugaievsky variation114636.0%54.1%
B42Sicilian, Kan, Swiss cheese variation24236.0%61.0%
B43Sicilian, Kan, 5.Nc3241638.7%56.7%
B44Sicilian defence29843.3%52.2%
B44Sicilian, Szen (`anti-Taimanov') variation72938.5%54.3%
B44Sicilian, Szen variation, Dely-Kasparov gambit1758.8%58.8%
B44Sicilian, Szen, hedgehog variation22239.6%50.9%
B45Sicilian, Taimanov variation169438.0%56.8%
B45Sicilian, Taimanov, American attack1338.5%42.3%
B46Sicilian, Taimanov variation290738.0%54.9%
B47Sicilian, Taimanov (Bastrikov) variation351741.1%54.1%
B48Sicilian, Taimanov variation289037.3%55.7%
B49Sicilian, Taimanov variation56544.6%58.4%
B50Sicilian305640.7%52.7%
B50Sicilian, wing gambit deferred2123.8%35.7%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack136339.2%55.2%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7145942.6%49.7%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit19039.5%57.6%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation69543.6%55.8%
B53Sicilian, Chekhover variation96542.2%49.1%
B53Sicilian, Chekhover, Zaitsev variation4221.4%58.3%
B54Sicilian54936.2%55.8%
B54Sicilian, Prins (Moscow) variation34837.1%55.6%
B55Sicilian, Prins variation, Venice attack3046.7%50.0%
B56Sicilian137039.3%53.4%
B56Sicilian, Venice attack5137.3%63.7%
B57Sicilian, Magnus Smith trap1050.0%35.0%
B57Sicilian, Sozin, Benko variation123638.8%51.9%
B57Sicilian, Sozin, not Scheveningen20941.1%56.0%
B58Sicilian, Boleslavsky variation42336.9%48.0%
B58Sicilian, Boleslavsky, Louma variation4434.1%58.0%
B58Sicilian, classical20145.3%46.5%
B59Sicilian, Boleslavsky variation, 7.Nb311446.5%52.2%
B60Sicilian, Richter-Rauzer52434.0%57.8%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2552.0%58.0%
B60Sicilian, Richter-Rauzer, Larsen variation11831.4%63.1%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd233737.4%60.2%
B62Sicilian, Richter-Rauzer, 6...e64337.2%58.1%
B62Sicilian, Richter-Rauzer, Keres variation5726.3%51.8%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation4434.1%53.4%
B62Sicilian, Richter-Rauzer, Podvebrady variation1656.3%34.4%
B62Sicilian, Richter-Rauzer, Richter attack10.0%100.0%
B63Sicilian, Richter-Rauzer, Rauzer attack12536.0%56.4%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7104237.2%56.1%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f425238.5%54.2%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd449640.1%55.7%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6553533.6%51.4%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7258733.3%55.7%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be79332.3%58.1%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf67233.3%61.1%
B70Sicilian, dragon variation63741.3%51.7%
B71Sicilian, dragon, Levenfish variation2733.3%53.7%
B71Sicilian, dragon, Levenfish; Flohr variation1100.0%50.0%
B72Sicilian, dragon, 6.Be37533.3%55.3%
B72Sicilian, dragon, classical attack7938.0%51.9%
B72Sicilian, dragon, classical, Amsterdam variation4124.4%48.8%
B72Sicilian, dragon, classical, Grigoriev variation2445.8%52.1%
B72Sicilian, dragon, classical, Nottingham variation1747.1%52.9%
B73Sicilian, dragon, classical, 8.O-O34043.8%51.9%
B73Sicilian, dragon, classical, Richter variation9542.1%56.8%
B73Sicilian, dragon, classical, Zollner gambit837.5%43.8%
B74Sicilian, dragon, classical, 9.Nb333451.8%47.2%
B74Sicilian, dragon, classical, Alekhine variation2147.6%66.7%
B74Sicilian, dragon, classical, Reti-Tartakower variation7746.8%55.8%
B74Sicilian, dragon, classical, Spielmann variation837.5%56.3%
B75Sicilian, dragon, Yugoslav attack22730.8%56.8%
B76Sicilian, dragon, Yugoslav attack, 7...O-O27934.8%51.4%
B76Sicilian, dragon, Yugoslav attack, Rauser variation85832.9%64.9%
B77Sicilian, dragon, Yugoslav attack, 9...Bd719143.5%56.3%
B77Sicilian, dragon, Yugoslav attack, 9.Bc49931.3%50.0%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O28628.0%55.2%
B79Sicilian, dragon, Yugoslav attack, 12.h41030.0%65.0%
B80Sicilian, Scheveningen variation113830.8%54.3%
B80Sicilian, Scheveningen, English variation13333.1%52.6%
B80Sicilian, Scheveningen, Vitolins variation4746.8%51.1%
B80Sicilian, Scheveningen, fianchetto variation16934.3%52.1%
B81Sicilian, Scheveningen, Keres attack211534.1%59.5%
B82Sicilian, Scheveningen, 6.f442031.9%57.6%
B82Sicilian, Scheveningen, Tal variation9237.0%59.8%
B83Sicilian, Scheveningen, 6.Be251739.8%52.6%
B83Sicilian, modern Scheveningen39942.9%47.7%
B83Sicilian, modern Scheveningen, main line48744.4%53.8%
B83Sicilian, modern Scheveningen, main line with Nb38636.0%57.6%
B84Sicilian, Scheveningen (Paulsen), classical variation344138.7%51.8%
B84Sicilian, Scheveningen, classical, Nd7 system5733.3%50.0%
B85Sicilian, Scheveningen, classical13040.8%51.9%
B85Sicilian, Scheveningen, classical main line33647.0%55.4%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
B85Sicilian, Scheveningen, classical, Maroczy system2536.0%54.0%
B86Sicilian, Sozin attack14441.0%54.5%
B87Sicilian, Sozin with ...a6 and ...b572136.5%51.0%
B88Sicilian, Sozin, Fischer variation1346.2%53.8%
B88Sicilian, Sozin, Leonhardt variation46941.4%54.4%
B89Sicilian, Sozin, 7.Be392636.4%50.2%
B89Sicilian, Velimirovic attack68733.5%50.9%
B90Sicilian, Najdorf235536.5%53.5%
B90Sicilian, Najdorf, Adams attack89737.0%51.5%
B90Sicilian, Najdorf, Byrne (English) attack1790935.1%53.2%
B90Sicilian, Najdorf, Lipnitzky attack84435.4%49.5%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation57837.7%53.6%
B92Sicilian, Najdorf, Opovcensky variation470540.0%53.2%
B93Sicilian, Najdorf, 6.f4149640.2%50.6%
B94Sicilian, Najdorf, 6.Bg563735.5%54.0%
B95Sicilian, Najdorf, 6...e690938.0%49.8%
B96Sicilian, Najdorf, 7.f4110134.5%51.3%
B96Sicilian, Najdorf, Polugayevsky variation9137.4%53.8%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3122.6%56.5%
B97Sicilian, Najdorf, 7...Qb6139733.0%46.3%
B97Sicilian, Najdorf, Poisoned pawn variation104844.6%49.8%
B98Sicilian, Najdorf variation31729.7%57.7%
B98Sicilian, Najdorf, 7...Be711833.9%53.4%
B98Sicilian, Najdorf, Browne variation4228.6%61.9%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2045.0%47.5%
B99Sicilian, Najdorf, 7...Be7 main line54829.2%53.5%
C00French defence45433.7%57.2%
C00French defence, Steiner variation66742.9%51.4%
C00French, Alapin variation475.0%62.5%
C00French, Chigorin variation66031.2%50.9%
C00French, King's Indian attack188437.8%50.6%
C00French, Labourdonnais variation21232.5%46.0%
C00French, Pelikan variation6033.3%53.3%
C00French, Reti (Spielmann) variation14640.4%51.7%
C00French, Reversed Philidor formation1136.4%63.6%
C00French, Schlechter variation16840.5%49.4%
C00French, Steinitz attack911.1%27.8%
C00French, Two knights variation18634.9%50.8%
C00French, Wing gambit2850.0%57.1%
C00Lengfellner system520.0%90.0%
C00St. George defence7847.4%64.7%
C01French, exchange variation119144.1%53.8%
C01French, exchange, Bogolyubov variation333.3%50.0%
C01French, exchange, Svenonius variation2740.7%50.0%
C02French, advance variation101032.6%55.9%
C02French, advance, Euwe variation118635.5%54.3%
C02French, advance, Milner-Barry gambit9234.8%45.7%
C02French, advance, Nimzovich system8830.7%43.8%
C02French, advance, Nimzovich variation560.0%50.0%
C02French, advance, Paulsen attack164433.3%54.7%
C02French, advance, Steinitz variation31432.8%52.7%
C02French, advance, Wade variation30739.4%56.2%
C03French, Tarrasch175044.3%56.9%
C03French, Tarrasch, Guimard variation5425.9%64.8%
C04French, Tarrasch, Guimard main line29529.5%59.5%
C05French, Tarrasch, Botvinnik variation3933.3%62.8%
C05French, Tarrasch, closed variation86831.6%60.1%
C06French, Tarrasch, Leningrad variation1717.6%85.3%
C06French, Tarrasch, closed variation, main line97537.7%59.5%
C07French, Tarrasch, Eliskases variation10746.7%53.3%
C07French, Tarrasch, open variation333047.4%53.5%
C08French, Tarrasch, open, 4.ed ed116849.6%54.6%
C09French, Tarrasch, open variation, main line99648.9%56.6%
C10French, Fort Knox variation56940.2%57.2%
C10French, Frere (Becker) variation1533.3%63.3%
C10French, Marshall variation250.0%25.0%
C10French, Paulsen variation53132.6%57.9%
C10French, Rubinstein variation196049.1%55.3%
C10French, Rubinstein, Capablanca line771.4%50.0%
C11French defence14740.8%54.4%
C11French, Burn variation470944.2%52.8%
C11French, Henneberger variation1338.5%50.0%
C11French, Steinitz variation87438.9%54.5%
C11French, Steinitz, Boleslavsky variation300835.0%57.2%
C11French, Steinitz, Bradford attack1100.0%50.0%
C11French, Steinitz, Gledhill attack10631.1%56.1%
C11French, Swiss variation4247.6%57.1%
C12French, MacCutcheon variation10442.3%51.0%
C12French, MacCutcheon, Bernstein variation1136.4%54.5%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
C12French, MacCutcheon, Chigorin variation4942.9%50.0%
C12French, MacCutcheon, Dr. Olland (Dutch) variation4825.0%66.7%
C12French, MacCutcheon, Duras variation425.0%62.5%
C12French, MacCutcheon, Grigoriev variation1741.2%50.0%
C12French, MacCutcheon, Janowski variation12836.7%57.4%
C12French, MacCutcheon, Lasker variation20127.9%59.2%
C12French, MacCutcheon, Lasker variation, 8...g635236.1%59.5%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
C12French, MacCutcheon, advance variation1428.6%21.4%
C13French, Albin-Alekhine-Chatard attack20430.4%54.4%
C13French, Albin-Alekhine-Chatard attack, Breyer variation6241.9%64.5%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1233.3%66.7%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation5742.1%70.2%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation250.0%75.0%
C13French, classical2842.9%42.9%
C13French, classical, Anderssen variation1127.3%40.9%
C13French, classical, Anderssen-Richter variation825.0%50.0%
C13French, classical, Frankfurt variation837.5%81.3%
C13French, classical, Tartakower variation2040.0%40.0%
C13French, classical, Vistaneckis (Nimzovich) variation90.0%66.7%
C14French, classical variation425.0%12.5%
C14French, classical, Alapin variation8446.4%54.2%
C14French, classical, Pollock variation714.3%35.7%
C14French, classical, Rubinstein variation2540.0%52.0%
C14French, classical, Stahlberg variation650.0%58.3%
C14French, classical, Steinitz variation62934.7%57.7%
C14French, classical, Tarrasch variation70.0%57.1%
C15French, Winawer (Nimzovich) variation62241.6%55.5%
C15French, Winawer, Alekhine (Maroczy) gambit14335.7%55.6%
C15French, Winawer, Alekhine gambit, Kan variation4445.5%45.5%
C15French, Winawer, Kondratiyev variation1100.0%50.0%
C15French, Winawer, fingerslip variation2842.9%35.7%
C16French, Winawer, Petrosian variation17732.2%55.1%
C16French, Winawer, advance variation64534.4%58.0%
C17French, Winawer, advance variation5240.4%58.7%
C17French, Winawer, advance, 5.a332129.3%63.6%
C17French, Winawer, advance, Bogolyubov variation32838.7%51.4%
C17French, Winawer, advance, Rauzer variation450.0%75.0%
C17French, Winawer, advance, Russian variation5038.0%53.0%
C18French, Winawer, advance variation38626.4%63.7%
C18French, Winawer, classical variation25132.7%57.8%
C19French, Winawer, advance, 6...Ne725133.9%56.4%
C19French, Winawer, advance, Smyslov variation14427.8%61.8%
C19French, Winawer, advance, poisoned pawn variation234233.3%60.5%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation52229.1%62.6%
C19French, Winawer, advance, positional main line95630.0%57.2%
C20Alapin's opening1729.4%67.6%
C20KP, Indian opening5435.2%41.7%
C20KP, King's head opening250.0%25.0%
C20KP, Lopez opening1233.3%33.3%
C20KP, Mengarini's opening2040.0%25.0%
C20KP, Napoleon's opening633.3%50.0%
C20KP, Patzer opening1822.2%33.3%
C20King's pawn game2040.0%55.0%
C21Centre game14143.3%57.8%
C21Danish gambit10641.5%46.2%
C21Danish gambit, Collijn defence475.0%37.5%
C21Danish gambit, Schlechter defence714.3%50.0%
C21Danish gambit, Soerensen defence2454.2%56.3%
C21Halasz gambit450.0%50.0%
C22Centre game39438.3%46.3%
C22Centre game, Berger variation35237.5%54.8%
C22Centre game, Charousek variation450.0%50.0%
C22Centre game, Hall variation333.3%50.0%
C22Centre game, Paulsen attack17538.3%51.1%
C23Bishop's opening15135.8%55.0%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C23Bishop's opening, Classical variation4839.6%53.1%
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-attack13157.3%48.5%
C23Bishop's opening, Philidor variation944.4%55.6%
C24Bishop's opening, Berlin defence84441.9%54.3%
C24Bishop's opening, Ponziani gambit250.0%25.0%
C24Bishop's opening, Urusov gambit3119.4%35.5%
C25Vienna gambit2725.9%53.7%
C25Vienna game23733.8%60.8%
C25Vienna game, Max Lange defence2142.9%50.0%
C25Vienna, Paulsen variation6734.3%57.5%
C25Vienna, Pierce gambit757.1%57.1%
C25Vienna, Steinitz gambit10.0%0.0%
C26Vienna game23344.6%54.1%
C26Vienna, Falkbeer variation4344.2%54.7%
C26Vienna, Mengarini variation1060.0%40.0%
C26Vienna, Paulsen-Mieses variation34041.2%53.2%
C27Boden-Kieseritsky gambit4032.5%31.3%
C27Boden-Kieseritsky gambit, Lichtenhein defence560.0%30.0%
C27Vienna game8644.2%54.7%
C27Vienna, Alekhine variation1338.5%50.0%
C27Vienna, `Frankenstein-Dracula' variation10.0%100.0%
C28Vienna game31941.4%53.6%
C29Vienna gambit15739.5%46.5%
C29Vienna gambit, Bardeleben variation650.0%25.0%
C29Vienna gambit, Breyer variation8630.2%55.8%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C29Vienna gambit, Paulsen attack4100.0%50.0%
C29Vienna gambit, Steinitz variation540.0%40.0%
C30KGD, 2...Nf62626.9%59.6%
C30KGD, Keene's defence560.0%70.0%
C30KGD, Mafia defence837.5%68.8%
C30KGD, Norwalde variation147.1%82.1%
C30KGD, classical counter-gambit10.0%0.0%
C30KGD, classical variation4228.6%59.5%
C30KGD, classical, 4.c32733.3%61.1%
C30KGD, classical, Marshall attack1100.0%50.0%
C30KGD, classical, Reti variation1100.0%50.0%
C30KGD, classical, Svenonius variation1100.0%50.0%
C30King's gambit6939.1%58.7%
C31KGD, Falkbeer counter-gambit2236.4%54.5%
C31KGD, Falkbeer, 3...e44100.0%50.0%
C31KGD, Falkbeer, 4.d3650.0%75.0%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C31KGD, Falkbeer, Nimzovich variation560.0%70.0%
C31KGD, Falkbeer, Rubinstein variation333.3%50.0%
C31KGD, Falkbeer, Tartakower variation475.0%62.5%
C31KGD, Nimzovich counter-gambit1553.3%73.3%
C32KGD, Falkbeer, 5.de837.5%43.8%
C32KGD, Falkbeer, Charousek gambit2100.0%50.0%
C32KGD, Falkbeer, Keres variation10.0%100.0%
C32KGD, Falkbeer, Reti variation450.0%50.0%
C32KGD, Falkbeer, main line, 7...Bf5616.7%91.7%
C33KGA, Breyer gambit333.3%50.0%
C33KGA, Carrera (Basman) gambit10.0%100.0%
C33KGA, Keres (Mason-Steinitz) gambit1450.0%32.1%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit333.3%50.0%
C33KGA, bishop's gambit3537.1%50.0%
C33KGA, bishop's gambit, Bledow variation2412.5%31.3%
C33KGA, bishop's gambit, Boden defence250.0%25.0%
C33KGA, bishop's gambit, Bogolyubov variation728.6%28.6%
C33KGA, bishop's gambit, Cozio (Morphy) defence2100.0%50.0%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
C33KGA, bishop's gambit, Jaenisch variation7839.7%48.1%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit425.0%62.5%
C33KGA, bishop's gambit, Maurian defence366.7%33.3%
C33KGA, bishop's gambit, Morphy variation1330.8%53.8%
C33KGA, bishop's gambit, Paulsen attack450.0%50.0%
C33KGA, bishop's gambit, Ruy Lopez defence1250.0%41.7%
C33KGA, bishop's gambit, Steinitz defence1136.4%45.5%
C33KGA, bishop's gambit, classical defence10.0%0.0%
C33King's gambit accepted10.0%0.0%
C34KGA, Becker defence2941.4%48.3%
C34KGA, Bonsch-Osmolovsky variation2437.5%56.3%
C34KGA, Fischer defence10631.1%45.8%
C34KGA, Gianutio counter-gambit2100.0%50.0%
C34KGA, Schallop defence1526.7%73.3%
C34King's knight's gambit944.4%33.3%
C35KGA, Cunningham defence4740.4%45.7%
C35KGA, Cunningham, Euwe defence1631.3%59.4%
C36KGA, Abbazia defence (classical defence, modern defence[!])3537.1%67.1%
C36KGA, Abbazia defence, modern variation18439.7%44.3%
C37KGA, Blachly gambit1942.1%36.8%
C37KGA, Cochrane gambit333.3%50.0%
C37KGA, King's knight's gambit1369.2%65.4%
C37KGA, Muzio gambit944.4%33.3%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C37KGA, Muzio gambit, From defence1100.0%50.0%
C37KGA, Quaade gambit633.3%16.7%
C37KGA, Rosentreter gambit683.3%41.7%
C37KGA, Salvio gambit250.0%75.0%
C37KGA, Salvio gambit, Anderssen counter-attack40.0%50.0%
C38KGA, Hanstein gambit837.5%43.8%
C38KGA, Philidor gambit128.3%29.2%
C38King's knight's gambit2339.1%28.3%
C39KGA, Allgaier, Walker attack10.0%0.0%
C39KGA, Kieseritsky, Berlin defence5339.6%40.6%
C39KGA, Kieseritsky, Berlin defence, 6.Bc44030.0%35.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%
C39KGA, Kieseritsky, Kolisch defence6844.1%44.1%
C39KGA, Kieseritsky, Neumann defence757.1%71.4%
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%
C39KGA, Kieseritsky, Rice gambit1723.5%29.4%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence4250.0%39.3%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence425.0%37.5%
C40Greco defence1030.0%45.0%
C40Gunderam defence6628.8%70.5%
C40King's knight opening20.0%50.0%
C40Latvian counter-gambit7431.1%62.8%
C40Latvian gambit, 3.Bc41100.0%50.0%
C40Latvian, Fraser defence1118.2%54.5%
C40Latvian, Polerio variation2227.3%40.9%
C40QP counter-gambit (elephant gambit)1353.8%65.4%
C40QP counter-gambit, Maroczy gambit366.7%66.7%
C41Philidor's defence18836.7%59.3%
C41Philidor, Hanham variation2339.1%71.7%
C41Philidor, Hanham, Delmar variation2100.0%50.0%
C41Philidor, Hanham, Krause variation1258.3%37.5%
C41Philidor, Hanham, Schlechter variation1723.5%76.5%
C41Philidor, Hanham, Steiner variation1827.8%69.4%
C41Philidor, Improved Hanham variation85038.8%56.2%
C41Philidor, Larsen variation3023.3%65.0%
C41Philidor, Lopez counter-gambit20.0%50.0%
C41Philidor, Nimzovich (Jaenisch) variation1540.0%53.3%
C41Philidor, Nimzovich variation3145.2%64.5%
C41Philidor, Nimzovich, Klein variation366.7%66.7%
C41Philidor, Nimzovich, Larobok variation4050.0%35.0%
C41Philidor, Nimzovich, Rellstab variation2846.4%69.6%
C41Philidor, Nimzovich, Sokolsky variation366.7%66.7%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
C41Philidor, Paulsen attack250.0%25.0%
C41Philidor, Philidor counter-gambit837.5%56.3%
C41Philidor, Philidor counter-gambit, Zukertort variation650.0%75.0%
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%
C41Philidor, Steinitz variation20.0%0.0%
C41Philidor, exchange variation62535.8%57.8%
C42Petrov three knights game21837.2%57.6%
C42Petrov's defence23244.4%51.5%
C42Petrov, Cochrane gambit5520.0%30.0%
C42Petrov, Cozio (Lasker) attack47249.8%53.3%
C42Petrov, Damiano variation2236.4%50.0%
C42Petrov, French attack333.3%83.3%
C42Petrov, Italian variation6327.0%50.0%
C42Petrov, Kaufmann attack16850.0%48.8%
C42Petrov, Nimzovich attack100045.7%54.8%
C42Petrov, Paulsen attack13339.1%51.1%
C42Petrov, classical attack67147.1%56.5%
C42Petrov, classical attack, Berger variation1172.7%54.5%
C42Petrov, classical attack, Chigorin variation53940.8%57.0%
C42Petrov, classical attack, Jaenisch variation157945.7%58.3%
C42Petrov, classical attack, Krause variation366.7%33.3%
C42Petrov, classical attack, Marshall variation86742.6%56.8%
C42Petrov, classical attack, Mason variation11143.2%58.6%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C42Petrov, classical attack, close variation12745.7%59.1%
C43Petrov, Urusov gambit633.3%83.3%
C43Petrov, modern (Steinitz) attack3148.4%56.5%
C43Petrov, modern attack, Bardeleben variation425.0%62.5%
C43Petrov, modern attack, Steinitz variation1100.0%50.0%
C43Petrov, modern attack, Symmetrical variation208245.2%53.6%
C43Petrov, modern attack, Trifunovic variation5345.3%49.1%
C43Petrov, modern attack, main line19045.8%58.2%
C44Dresden opening20.0%0.0%
C44Inverted Hanham2433.3%45.8%
C44Inverted Hungarian2045.0%57.5%
C44King's pawn game7534.7%52.0%
C44Konstantinopolsky opening475.0%62.5%
C44Ponziani counter-gambit10542.9%57.6%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C44Ponziani opening28636.0%44.2%
C44Ponziani, Caro variation20043.0%50.0%
C44Ponziani, Fraser defence4837.5%66.7%
C44Ponziani, Jaenisch counter-attack196246.1%53.0%
C44Ponziani, Leonhardt variation8537.6%47.1%
C44Ponziani, Reti variation633.3%50.0%
C44Ponziani, Romanishin variation1631.3%46.9%
C44Ponziani, Steinitz variation43341.6%45.5%
C44Scotch gambit4032.5%58.8%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
C44Scotch gambit, Benima defence4533.3%54.4%
C44Scotch gambit, Dubois-Reti defence26040.0%52.7%
C44Scotch gambit, Hanneken variation10.0%100.0%
C44Scotch opening2100.0%50.0%
C44Scotch, Goering gambit17245.9%57.3%
C44Scotch, Goering gambit, Bardeleben variation837.5%43.8%
C44Scotch, Lolli variation1435.7%53.6%
C44Scotch, Relfsson gambit ('MacLopez')666.7%66.7%
C45Scotch game215242.6%53.4%
C45Scotch, Blackburne attack1637.5%50.0%
C45Scotch, Blumenfeld attack1637.5%31.3%
C45Scotch, Ghulam Kassim variation2100.0%50.0%
C45Scotch, Horwitz attack2433.3%66.7%
C45Scotch, Meitner variation3554.3%55.7%
C45Scotch, Mieses variation125740.6%54.3%
C45Scotch, Paulsen attack10.0%100.0%
C45Scotch, Potter variation46440.5%51.5%
C45Scotch, Pulling counter-attack20.0%50.0%
C45Scotch, Romanishin variation5545.5%59.1%
C45Scotch, Schmidt variation57351.3%47.3%
C45Scotch, Steinitz variation4035.0%55.0%
C45Scotch, Tartakower variation1540.0%46.7%
C46Four knights game55142.8%50.3%
C46Four knights, Gunsberg variation6254.8%48.4%
C46Four knights, Italian variation15441.6%48.7%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
C46Three knights game10438.5%51.9%
C46Three knights, Schlechter variation1225.0%37.5%
C46Three knights, Steinitz variation2839.3%55.4%
C46Three knights, Steinitz, Rosenthal variation540.0%40.0%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C47Four knights, Belgrade gambit10647.2%53.8%
C47Four knights, Scotch variation1315.4%61.5%
C47Four knights, Scotch, 4...exd444650.0%54.1%
C47Four knights, Scotch, Krause variation2937.9%63.8%
C48Four knights, Bardeleben variation850.0%50.0%
C48Four knights, Marshall variation20.0%0.0%
C48Four knights, Ranken variation1241.7%62.5%
C48Four knights, Rubinstein counter-gambit92138.3%53.5%
C48Four knights, Rubinstein counter-gambit, 5.Be22100.0%50.0%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1338.5%42.3%
C48Four knights, Rubinstein counter-gambit, Henneberger variation5341.5%49.1%
C48Four knights, Rubinstein counter-gambit, exchange variation13365.4%52.3%
C48Four knights, Spanish variation20352.2%57.6%
C48Four knights, Spanish, classical defence15443.5%50.3%
C48Four knights, Spielmann variation366.7%33.3%
C49Four knights6454.7%49.2%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
C49Four knights, Janowski variation1540.0%60.0%
C49Four knights, Nimzovich (Paulsen) variation5259.6%56.7%
C49Four knights, Svenonius variation10.0%100.0%
C49Four knights, double Ruy Lopez5244.2%62.5%
C49Four knights, symmetrical variation17442.5%55.2%
C49Four knights, symmetrical, Blake variation2100.0%50.0%
C49Four knights, symmetrical, Capablanca variation1656.3%59.4%
C49Four knights, symmetrical, Maroczy system4546.7%52.2%
C49Four knights, symmetrical, Metger unpin30935.9%50.3%
C49Four knights, symmetrical, Pillsbury variation3860.5%46.1%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C50Giuoco Pianissimo137138.5%53.1%
C50Giuoco Pianissimo, Canal variation17443.7%52.9%
C50Giuoco Pianissimo, Italian four knights variation34438.7%51.3%
C50Giuoco Piano29543.7%54.4%
C50Giuoco Piano, four knights variation5236.5%51.0%
C50Hungarian defence14839.2%49.3%
C50King's pawn game20936.4%59.3%
C50Rousseau gambit333.3%50.0%
C51Evans counter-gambit250.0%75.0%
C51Evans gambit450.0%75.0%
C51Evans gambit declined1816.7%58.3%
C51Evans gambit declined, 5.a415540.6%45.5%
C51Evans gambit declined, Lange variation20.0%0.0%
C51Evans gambit declined, Showalter variation2040.0%50.0%
C51Evans gambit, 5...Be73336.4%54.5%
C51Evans gambit, Cordel variation6651.5%45.5%
C51Evans gambit, Fraser attack20.0%100.0%
C51Evans gambit, Goering attack10.0%100.0%
C51Evans gambit, Morphy attack2040.0%55.0%
C51Evans gambit, Paulsen variation1827.8%69.4%
C51Evans gambit, Stone-Ware variation18235.2%50.5%
C51Evans gambit, normal variation1921.1%47.4%
C52Evans gambit25238.9%48.0%
C52Evans gambit, Alapin-Steinitz variation1100.0%50.0%
C52Evans gambit, Lasker defence616.7%25.0%
C52Evans gambit, Levenfish variation616.7%25.0%
C52Evans gambit, Richardson attack1936.8%28.9%
C52Evans gambit, Tartakower attack6643.9%44.7%
C52Evans gambit, Waller attack60.0%100.0%
C52Evans gambit, compromised defence3823.7%69.7%
C52Evans gambit, compromised defence, Paulsen variation1625.0%62.5%
C53Giuoco Piano174537.4%52.4%
C53Giuoco Piano, Anderssen variation1656.3%40.6%
C53Giuoco Piano, Bird's attack12730.7%49.2%
C53Giuoco Piano, LaBourdonnais variation911.1%61.1%
C53Giuoco Piano, Mestel variation1100.0%50.0%
C53Giuoco Piano, centre-holding variation3636.1%59.7%
C53Giuoco Piano, close variation1833.3%72.2%
C54Giuoco Piano16653.6%52.7%
C54Giuoco Piano, Moeller (Therkatz) attack3644.4%47.2%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C55Giuoco piano20.0%50.0%
C55Two knights defence4337.2%48.8%
C55Two knights defence (Modern bishop's opening)114438.7%55.8%
C55Two knights defence, Perreux variation2548.0%52.0%
C55Two knights, Max Lange attack1631.3%59.4%
C55Two knights, Max Lange attack, Loman defence10.0%100.0%
C55Two knights, Max Lange attack, Marshall variation633.3%50.0%
C55Two knights, Max Lange attack, Schlechter variation1942.1%52.6%
C55Two knights, Max Lange attack, Steinitz variation1241.7%62.5%
C56Two knights defence13743.8%48.9%
C56Two knights defence, Canal variation540.0%40.0%
C57Two knights defence812.5%31.3%
C57Two knights defence, Fegatello attack4721.3%55.3%
C57Two knights defence, Fegatello attack, Leonhardt variation250.0%75.0%
C57Two knights defence, Fegatello attack, Polerio defence30.0%100.0%
C57Two knights defence, Fritz variation560.0%30.0%
C57Two knights defence, Fritz, Gruber variation425.0%37.5%
C57Two knights defence, Lolli attack1936.8%55.3%
C57Two knights defence, Ulvestad variation1457.1%42.9%
C57Two knights defence, Wilkes Barre (Traxler) variation4438.6%53.4%
C58Two knights defence14835.8%56.4%
C58Two knights defence, Blackburne variation30.0%66.7%
C58Two knights defence, Bogolyubov variation4932.7%49.0%
C58Two knights defence, Colman variation1723.5%35.3%
C58Two knights defence, Kieseritsky variation633.3%66.7%
C58Two knights defence, Paoli variation933.3%72.2%
C58Two knights defence, Yankovich variation1241.7%20.8%
C59Two knights defence17334.7%48.6%
C59Two knights defence, Goering variation425.0%12.5%
C59Two knights defence, Steinitz variation30329.0%47.2%
C60Ruy Lopez (Spanish opening)2725.9%64.8%
C60Ruy Lopez, Cozio defence22242.8%50.2%
C60Ruy Lopez, Cozio defence, Paulsen variation2927.6%72.4%
C60Ruy Lopez, Lucena defence20.0%50.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence21640.7%52.8%
C61Ruy Lopez, Bird's defence13535.6%60.0%
C61Ruy Lopez, Bird's defence, Paulsen variation333.3%50.0%
C62Ruy Lopez, old Steinitz defence23136.8%55.6%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
C63Ruy Lopez, Schliemann defence26043.1%57.3%
C63Ruy Lopez, Schliemann defence, Berger variation32140.8%56.5%
C64Ruy Lopez, Cordel gambit5639.3%58.9%
C64Ruy Lopez, classical (Cordel) defence17243.0%51.2%
C64Ruy Lopez, classical defence, 4.c322040.0%56.4%
C64Ruy Lopez, classical defence, Benelux variation 35838.5%56.1%
C64Ruy Lopez, classical defence, Charousek variation333.3%83.3%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C65Ruy Lopez, Berlin defence235139.4%51.0%
C65Ruy Lopez, Berlin defence, 4.O-O14940.9%59.4%
C65Ruy Lopez, Berlin defence, Beverwijk variation44535.7%57.4%
C65Ruy Lopez, Berlin defence, Duras variation1338.5%50.0%
C65Ruy Lopez, Berlin defence, Kaufmann variation2642.3%55.8%
C65Ruy Lopez, Berlin defence, Mortimer variation1464.3%32.1%
C65Ruy Lopez, Berlin defence, Nyholm attack5352.8%54.7%
C66Ruy Lopez, Berlin defence, 4.O-O, d68151.9%53.1%
C66Ruy Lopez, Berlin defence, hedgehog variation9952.5%57.6%
C66Ruy Lopez, closed Berlin defence, Bernstein variation1435.7%53.6%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
C66Ruy Lopez, closed Berlin defence, Showalter variation5149.0%55.9%
C66Ruy Lopez, closed Berlin defence, Wolf variation5657.1%57.1%
C67Ruy Lopez, Berlin defence, Cordel variation4938.8%60.2%
C67Ruy Lopez, Berlin defence, Minckwitz variation3548.6%61.4%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation1850.0%69.4%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
C67Ruy Lopez, Berlin defence, Winawer attack2832.1%69.6%
C67Ruy Lopez, Berlin defence, Zukertort variation1250.0%58.3%
C67Ruy Lopez, Berlin defence, open variation322246.4%54.3%
C67Ruy Lopez, open Berlin defence, 5...Be76232.3%54.8%
C67Ruy Lopez, open Berlin defence, Showalter variation1428.6%42.9%
C67Ruy Lopez, open Berlin defence, l'Hermet variation7154.9%48.6%
C68Ruy Lopez, exchange variation7143.7%51.4%
C68Ruy Lopez, exchange, Alekhine variation1442.9%42.9%
C68Ruy Lopez, exchange, Keres variation7656.6%50.7%
C68Ruy Lopez, exchange, Romanovsky variation1233.3%50.0%
C69Ruy Lopez, exchange variation, 5.O-O57241.6%53.1%
C69Ruy Lopez, exchange variation, Alapin gambit25339.9%49.6%
C69Ruy Lopez, exchange, Bronstein variation43331.9%50.1%
C69Ruy Lopez, exchange, Gligoric variation59940.9%56.7%
C70Ruy Lopez3345.5%50.0%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C70Ruy Lopez, Caro variation7740.3%57.8%
C70Ruy Lopez, Classical defence deferred8144.4%61.7%
C70Ruy Lopez, Cozio defence deferred23645.3%52.8%
C70Ruy Lopez, Graz variation6100.0%50.0%
C70Ruy Lopez, Schliemann defence deferred1729.4%73.5%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation12137.2%64.0%
C70Ruy Lopez, fianchetto defence deferred1464.3%53.6%
C71Ruy Lopez, modern Steinitz defence10541.9%55.2%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation10242.2%55.4%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C72Ruy Lopez, modern Steinitz defence, 5.O-O33243.7%59.8%
C73Ruy Lopez, modern Steinitz defence, Alapin variation5735.1%54.4%
C73Ruy Lopez, modern Steinitz defence, Richter variation13152.7%53.1%
C74Ruy Lopez, Siesta, Kopayev variation9931.3%52.0%
C74Ruy Lopez, modern Steinitz defence5038.0%57.0%
C74Ruy Lopez, modern Steinitz defence, siesta variation1844.4%44.4%
C75Ruy Lopez, modern Steinitz defence13842.0%55.1%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation6132.8%57.4%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation28335.3%51.6%
C77Ruy Lopez, Anderssen variation65941.9%51.6%
C77Ruy Lopez, Morphy defence18838.3%56.9%
C77Ruy Lopez, Morphy defence, Duras variation3444.1%54.4%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)6041.7%45.8%
C77Ruy Lopez, Wormald (Alapin) attack29041.4%54.1%
C77Ruy Lopez, Wormald attack, Gruenfeld variation2100.0%50.0%
C77Ruy Lopez, four knights (Tarrasch) variation14745.6%56.1%
C78Ruy Lopez, ...b5 & ...d64233.3%52.4%
C78Ruy Lopez, 5.O-O101546.4%54.3%
C78Ruy Lopez, Archangelsk (counterthrust) variation143242.2%55.2%
C78Ruy Lopez, Moeller defence51443.0%52.8%
C78Ruy Lopez, Wing attack40.0%50.0%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)21138.9%55.0%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1172.7%54.5%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1241.7%54.2%
C80Ruy Lopez, open (Tarrasch) defence5745.6%59.6%
C80Ruy Lopez, open, 6.d44537.8%45.6%
C80Ruy Lopez, open, 7.Bb348140.7%53.0%
C80Ruy Lopez, open, 8...Be6119238.1%43.1%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C80Ruy Lopez, open, Bernstein variation78146.6%62.9%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2245.5%45.5%
C80Ruy Lopez, open, Friess attack1020.0%60.0%
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 variation30.0%33.3%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C81Ruy Lopez, open, Howell attack12951.9%50.0%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation633.3%50.0%
C82Ruy Lopez, open, 9.c350.0%80.0%
C82Ruy Lopez, open, Berlin variation1637.5%68.8%
C82Ruy Lopez, open, Dilworth variation15641.0%60.9%
C82Ruy Lopez, open, Italian variation8448.8%66.1%
C82Ruy Lopez, open, Motzko attack5343.4%57.5%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation650.0%75.0%
C82Ruy Lopez, open, St. Petersburg variation18239.6%66.5%
C83Ruy Lopez, open, 9...Be7, 10.Re14334.9%54.7%
C83Ruy Lopez, open, Breslau variation250.0%75.0%
C83Ruy Lopez, open, Malkin variation666.7%66.7%
C83Ruy Lopez, open, classical defence15547.1%60.3%
C84Ruy Lopez, closed defence117140.6%51.5%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C84Ruy Lopez, closed, centre attack16147.8%46.3%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)105339.2%48.3%
C86Ruy Lopez, Worrall attack2454.2%56.3%
C86Ruy Lopez, Worrall attack, sharp line19838.9%54.8%
C86Ruy Lopez, Worrall attack, solid line6030.0%46.7%
C87Ruy Lopez, closed, Averbach variation23941.0%59.4%
C88Ruy Lopez, Trajkovic counter-attack60740.4%52.1%
C88Ruy Lopez, closed119341.2%52.6%
C88Ruy Lopez, closed, 7...O-O265740.2%52.4%
C88Ruy Lopez, closed, 7...d6, 8.d41833.3%16.7%
C88Ruy Lopez, closed, 8.c32737.0%63.0%
C88Ruy Lopez, closed, Balla variation3941.0%48.7%
C88Ruy Lopez, closed, anti-Marshall 8.a4141639.5%53.9%
C89Ruy Lopez, Marshall counter-attack47953.4%54.7%
C89Ruy Lopez, Marshall counter-attack, 11...c616346.6%54.6%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
C89Ruy Lopez, Marshall, main line, 12.d2d420642.2%62.9%
C89Ruy Lopez, Marshall, main line, 14...Qh340451.0%51.2%
C90Ruy Lopez, closed (with ...d6)116636.4%51.6%
C90Ruy Lopez, closed, Lutikov variation3748.6%56.8%
C90Ruy Lopez, closed, Pilnik variation79335.4%52.0%
C90Ruy Lopez, closed, Suetin variation6536.9%56.9%
C91Ruy Lopez, closed, 9.d4116338.3%58.1%
C91Ruy Lopez, closed, Bogolyubov variation367542.8%53.9%
C92Ruy Lopez, closed, 9.h336842.1%52.3%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)181438.5%56.4%
C92Ruy Lopez, closed, Keres (9...a5) variation1250.0%50.0%
C92Ruy Lopez, closed, Kholmov variation11930.3%66.4%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation26642.5%64.1%
C93Ruy Lopez, closed, Smyslov defence14939.6%58.1%
C94Ruy Lopez, closed, Breyer defence4032.5%56.3%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%
C95Ruy Lopez, closed, Breyer, Borisenko variation69339.4%56.3%
C95Ruy Lopez, closed, Breyer, Gligoric variation4645.7%53.3%
C95Ruy Lopez, closed, Breyer, Simagin variation2035.0%57.5%
C96Ruy Lopez, closed (10...c5)58832.1%64.0%
C96Ruy Lopez, closed (8...Na5)1752.9%61.8%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
C96Ruy Lopez, closed, Keres (...Nd7) defence19536.9%65.1%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
C97Ruy Lopez, closed, Chigorin defence71231.5%62.8%
C98Ruy Lopez, closed, Chigorin, 12...Nc613631.6%61.4%
C99Ruy Lopez, closed, Chigorin, 12...c5d490040.3%62.7%
D00Blackmar gambit19840.9%40.7%
D00Blackmar-Diemer gambit3020.0%40.0%
D00Blackmar-Diemer, Euwe defence2623.1%42.3%
D00Levitsky attack (Queen's bishop attack)164036.6%52.5%
D00Queen's pawn game43839.3%49.1%
D00Queen's pawn, Anti-Veresov366.7%33.3%
D00Queen's pawn, Chigorin variation28535.1%51.9%
D00Queen's pawn, Mason variation71140.1%50.7%
D00Queen's pawn, Mason variation, Steinitz counter-gambit33036.4%50.0%
D00Queen's pawn, stonewall attack5736.8%43.0%
D01Richter-Veresov attack38936.5%46.3%
D01Richter-Veresov attack, Richter variation1723.5%52.9%
D01Richter-Veresov attack, Veresov variation2045.0%47.5%
D02Queen's bishop game108439.3%53.3%
D02Queen's pawn game445841.2%52.6%
D02Queen's pawn game, Chigorin variation35740.6%58.4%
D02Queen's pawn game, Krause variation33444.6%54.9%
D03Torre attack (Tartakower variation)60939.2%50.7%
D04Queen's pawn game62740.2%50.4%
D05Colle system15748.4%54.8%
D05Queen's pawn game50237.1%52.2%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation20639.3%54.6%
D05Queen's pawn game, Zukertort variation1861.1%52.8%
D06QGD, Grau (Sahovic) defence9136.3%63.2%
D06QGD, Marshall defence10241.2%59.8%
D06QGD, symmetrical (Austrian) defence3250.0%56.3%
D07QGD, Chigorin defence64435.4%57.1%
D07QGD, Chigorin defence, Janowski variation7532.0%64.0%
D08QGD, Albin counter-gambit6535.4%65.4%
D08QGD, Albin counter-gambit, Alapin variation666.7%50.0%
D08QGD, Albin counter-gambit, Balogh variation425.0%87.5%
D08QGD, Albin counter-gambit, Janowski variation425.0%62.5%
D08QGD, Albin counter-gambit, Lasker trap10.0%100.0%
D09QGD, Albin counter-gambit, 5.g36041.7%60.8%
D10QGD Slav defence338841.3%53.6%
D10QGD Slav defence, Alekhine variation22941.0%55.0%
D10QGD Slav defence, exchange variation134343.9%55.4%
D10QGD Slav, Winawer counter-gambit12232.8%52.5%
D11QGD Slav, 3.Nf3187039.9%56.1%
D11QGD Slav, 4.e3341742.1%55.4%
D11QGD Slav, Breyer variation9939.4%58.1%
D12QGD Slav, 4.e3 Bf5267640.0%54.1%
D12QGD Slav, Amsterdam variation2152.4%45.2%
D12QGD Slav, exchange variation8737.9%48.9%
D13QGD Slav, exchange variation63845.3%55.4%
D14QGD Slav, exchange variation, 6.Bf4 Bf564349.1%51.5%
D14QGD Slav, exchange, Trifunovic variation19548.7%52.6%
D15QGD Slav accepted7441.9%49.3%
D15QGD Slav, 4.Nc3328439.8%54.7%
D15QGD Slav, 5.e3 (Alekhine variation)14230.3%54.6%
D15QGD Slav, Schlechter variation26242.4%59.0%
D15QGD Slav, Slav gambit1625.0%56.3%
D15QGD Slav, Suechting variation11631.9%57.3%
D15QGD Slav, Tolush-Geller gambit11029.1%40.9%
D16QGD Slav accepted, Alapin variation14540.0%65.5%
D16QGD Slav, Smyslov variation5635.7%60.7%
D16QGD Slav, Soultanbeieff variation34549.9%53.0%
D16QGD Slav, Steiner variation19937.2%64.8%
D17QGD Slav, Carlsbad variation46037.2%60.5%
D17QGD Slav, Czech defence33848.2%54.9%
D17QGD Slav, Krause attack62039.2%58.1%
D17QGD Slav, Wiesbaden variation58442.1%57.2%
D18QGD Slav, Dutch variation23839.1%59.9%
D18QGD Slav, Dutch, Lasker variation333.3%83.3%
D19QGD Slav, Dutch variation122938.6%57.5%
D19QGD Slav, Dutch variation, main line18440.8%57.9%
D19QGD Slav, Dutch, Saemisch variation1100.0%50.0%
D20QGA, 3.e4248739.9%56.9%
D20QGA, Linares variation7436.5%61.5%
D20Queen's gambit accepted81845.2%55.7%
D21QGA, 3.Nf321739.2%57.8%
D21QGA, Alekhine defense, Borisenko-Furman variation2128.6%52.4%
D21QGA, Ericson variation40.0%25.0%
D22QGA, Alekhine defence19040.0%56.8%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
D22QGA, Haberditz variation9256.5%52.2%
D23QGA, Mannheim variation27546.2%52.2%
D23Queen's gambit accepted2941.4%51.7%
D24QGA, 4.Nc318440.8%50.8%
D24QGA, Bogolyubov variation14348.3%57.0%
D25QGA, 4.e38536.5%54.7%
D25QGA, Flohr variation6129.5%65.6%
D25QGA, Janowsky-Larsen variation31738.5%57.4%
D25QGA, Smyslov variation8252.4%59.1%
D26QGA, 4...e624146.1%55.0%
D26QGA, classical variation60351.9%52.2%
D26QGA, classical variation, 6.O-O13546.7%56.7%
D26QGA, classical, Furman variation10.0%0.0%
D26QGA, classical, Steinitz variation3043.3%65.0%
D27QGA, classical, 6...a6356350.4%55.1%
D27QGA, classical, Geller variation7255.6%52.8%
D27QGA, classical, Rubinstein variation138047.0%55.9%
D28QGA, classical, 7...b518550.8%56.8%
D28QGA, classical, 7.Qe26251.6%61.3%
D29QGA, classical, 8...Bb729440.5%47.8%
D29QGA, classical, Smyslov variation4055.0%45.0%
D30QGD69847.4%51.8%
D30QGD Slav25345.8%54.9%
D30QGD Slav, Semmering variation2025.0%47.5%
D30QGD, Capablanca variation3036.7%55.0%
D30QGD, Capablanca-Duras variation29445.6%54.8%
D30QGD, Hastings variation45246.7%52.3%
D30QGD, Vienna variation47053.4%52.7%
D30Queen's gambit declined531944.9%55.9%
D31QGD, 3.Nc366941.3%54.9%
D31QGD, Alapin variation742.9%64.3%
D31QGD, Charousek (Petrosian) variation122044.5%52.8%
D31QGD, Janowski variation9545.3%51.1%
D31QGD, semi-Slav79438.3%54.4%
D31QGD, semi-Slav, Abrahams variation12535.2%44.0%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
D31QGD, semi-Slav, Koomen variation742.9%35.7%
D31QGD, semi-Slav, Marshall gambit59043.1%53.2%
D31QGD, semi-Slav, Noteboom variation22939.3%52.4%
D32QGD, Tarrasch defence27646.4%54.3%
D32QGD, Tarrasch defence, 4.cd ed1533.3%56.7%
D32QGD, Tarrasch defence, Marshall gambit633.3%50.0%
D32QGD, Tarrasch defence, Tarrasch gambit540.0%20.0%
D32QGD, Tarrasch, von Hennig-Schara gambit5141.2%61.8%
D33QGD, Tarrasch, Folkestone (Swedish) variation4254.8%58.3%
D33QGD, Tarrasch, Prague variation6131.1%53.3%
D33QGD, Tarrasch, Schlechter-Rubinstein system1338.5%50.0%
D33QGD, Tarrasch, Wagner variation922.2%66.7%
D34QGD, Tarrasch, Prague variation, 7...Be716643.4%55.4%
D34QGD, Tarrasch, Prague variation, 9.Bg551947.2%57.5%
D34QGD, Tarrasch, Prague variation, Normal position62947.5%56.4%
D34QGD, Tarrasch, Reti variation2263.6%59.1%
D35QGD, 3...Nf67842.3%49.4%
D35QGD, Harrwitz attack18451.6%55.7%
D35QGD, exchange variation34643.1%56.5%
D35QGD, exchange, Saemisch variation25846.9%54.1%
D35QGD, exchange, positional line84540.6%53.9%
D35QGD, exchange, positional line, 5...c669541.4%55.0%
D36QGD, exchange, positional line, 6.Qc220141.8%54.2%
D37QGD, 4.Nf3484546.6%52.8%
D37QGD, classical variation (5.Bf4)374044.7%55.1%
D38QGD, Ragozin variation332046.0%52.6%
D39QGD, Ragozin, Vienna variation147251.0%51.2%
D40QGD, Semi-Tarrasch defence41342.1%55.0%
D40QGD, Semi-Tarrasch defence, Pillsbury variation2035.0%52.5%
D40QGD, Semi-Tarrasch, symmetrical variation757.1%57.1%
D41QGD, Semi-Tarrasch with e312046.7%53.3%
D41QGD, Semi-Tarrasch, 5.cd57647.6%58.3%
D41QGD, Semi-Tarrasch, Kmoch variation875.0%50.0%
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%
D42QGD, Semi-Tarrasch, 7.Bd324042.1%56.9%
D43QGD semi-Slav596841.2%52.9%
D43QGD semi-Slav, Hastings variation520.0%90.0%
D44QGD semi-Slav, 5.Bg5 dc13641.9%49.6%
D44QGD semi-Slav, Botvinnik system (anti-Meran)6637.9%52.3%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
D44QGD semi-Slav, anti-Meran gambit74334.9%58.3%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Lilienthal variation14932.2%65.8%
D44QGD semi-Slav, anti-Meran, Szabo variation2420.8%35.4%
D45QGD semi-Slav, 5...Nd750538.4%54.1%
D45QGD semi-Slav, 5.e339040.3%56.8%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1533.3%43.3%
D45QGD semi-Slav, Stoltz variation1102243.5%53.4%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)168343.7%53.9%
D45QGD semi-Slav, stonewall defence1154.5%54.5%
D46QGD semi-Slav, 6.Bd33540.0%62.9%
D46QGD semi-Slav, Bogolyubov variation15843.0%57.0%
D46QGD semi-Slav, Chigorin defence41644.5%54.0%
D46QGD semi-Slav, Romih variation16637.3%63.9%
D47QGD semi-Slav, 7.Bc45536.4%52.7%
D47QGD semi-Slav, Meran variation117849.6%55.1%
D47QGD semi-Slav, Meran, Wade variation676239.4%53.5%
D47QGD semi-Slav, neo-Meran (Lundin variation)27348.0%54.8%
D48QGD semi-Slav, Meran205.0%37.5%
D48QGD semi-Slav, Meran, 8...a6135549.8%48.7%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
D48QGD semi-Slav, Meran, Reynolds' variation72440.2%56.3%
D48QGD semi-Slav, Meran, old main line11135.1%52.7%
D49QGD semi-Slav, Meran, Blumenfeld variation15745.9%51.0%
D49QGD semi-Slav, Meran, Rabinovich variation5825.9%45.7%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
D49QGD semi-Slav, Meran, Sozin variation15344.4%45.8%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
D50QGD, 4.Bg56543.1%53.8%
D50QGD, Been-Koomen variation30.0%0.0%
D50QGD, Canal (Venice) variation20.0%50.0%
D50QGD, Semi-Tarrasch1030.0%45.0%
D50QGD, Semi-Tarrasch, Krause variation1100.0%50.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1241.7%54.2%
D51QGD933.3%72.2%
D51QGD, 4.Bg5 Nbd76137.7%53.3%
D51QGD, 5...c65750.9%51.8%
D51QGD, Alekhine variation40.0%50.0%
D51QGD, Capablanca anti-Cambridge Springs variation862.5%68.8%
D51QGD, Manhattan variation633.3%66.7%
D52QGD12340.7%57.7%
D52QGD, Cambridge Springs defence3145.2%38.7%
D52QGD, Cambridge Springs defence, 7.cd3435.3%50.0%
D52QGD, Cambridge Springs defence, Argentine variation1931.6%42.1%
D52QGD, Cambridge Springs defence, Bogoljubow variation37546.9%56.0%
D52QGD, Cambridge Springs defence, Capablanca variation3534.3%60.0%
D52QGD, Cambridge Springs defence, Rubinstein variation14537.9%54.8%
D52QGD, Cambridge Springs defence, Yugoslav variation33639.6%58.2%
D53QGD, 4.Bg5 Be789645.3%54.2%
D53QGD, 4.Bg5 Be7, 5.e3 O-O3348.5%51.5%
D53QGD, Lasker variation425.0%87.5%
D54QGD, Anti-neo-orthodox variation2842.9%42.9%
D55QGD, 6.Nf311632.8%57.8%
D55QGD, Neo-orthodox variation633.3%50.0%
D55QGD, Neo-orthodox variation, 7.Bh411742.7%56.4%
D55QGD, Neo-orthodox variation, 7.Bxf629944.1%51.8%
D55QGD, Petrosian variation34951.9%53.4%
D56QGD, Lasker defence28442.6%53.7%
D56QGD, Lasker defence, Teichmann variation8650.0%49.4%
D57QGD, Lasker defence, Bernstein variation450.0%50.0%
D57QGD, Lasker defence, main line4555.6%52.2%
D58QGD, Tartakower (Makagonov-Bondarevsky) system482446.4%52.0%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd517948.6%46.6%
D59QGD, Tartakower variation10743.9%46.3%
D60QGD, Orthodox defence8130.9%56.2%
D60QGD, Orthodox defence, Botvinnik variation6532.3%50.0%
D60QGD, Orthodox defence, Rauzer variation2638.5%65.4%
D61QGD, Orthodox defence, Rubinstein variation20543.9%50.7%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)12949.6%55.8%
D63QGD, Orthodox defence6645.5%56.1%
D63QGD, Orthodox defence, 7.Rc120336.5%57.6%
D63QGD, Orthodox defence, Capablanca variation1100.0%50.0%
D63QGD, Orthodox defence, Pillsbury attack1330.8%76.9%
D63QGD, Orthodox defence, Swiss (Henneberger) variation8444.0%62.5%
D63QGD, Orthodox defence, Swiss, Karlsbad variation15142.4%52.3%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)9545.3%56.3%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation1421.4%46.4%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation1844.4%33.3%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
D65QGD, Orthodox defence, Rubinstein attack, main line1154.5%72.7%
D66QGD, Orthodox defence, Bd3 line22245.9%59.5%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation742.9%78.6%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
D67QGD, Orthodox defence, Bd3 line, 11.O-O4533.3%65.6%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation3354.5%54.5%
D68QGD, Orthodox defence, classical variation6147.5%56.6%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)4254.8%58.3%
D69QGD, Orthodox defence, classical, 13.de1553.3%53.3%
D70Neo-Gruenfeld (Kemeri) defence2634.6%55.8%
D70Neo-Gruenfeld defence17237.2%57.0%
D71Neo-Gruenfeld, 5.cd26545.7%56.0%
D72Neo-Gruenfeld, 5.cd, main line16133.5%59.6%
D73Neo-Gruenfeld, 5.Nf368150.5%55.5%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O19143.5%55.8%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc37345.2%61.0%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc1526.7%73.3%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb649544.2%57.1%
D77Neo-Gruenfeld, 6.O-O63046.3%54.4%
D78Neo-Gruenfeld, 6.O-O c671642.0%54.5%
D79Neo-Gruenfeld, 6.O-O, main line44048.6%54.1%
D80Gruenfeld defence55945.4%54.4%
D80Gruenfeld, Lundin variation10.0%0.0%
D80Gruenfeld, Stockholm variation62343.2%53.9%
D81Gruenfeld, Russian variation25740.9%62.8%
D82Gruenfeld, 4.Bf448744.8%54.0%
D83Gruenfeld, Gruenfeld gambit1533.3%63.3%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1573.3%63.3%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation17646.6%55.7%
D84Gruenfeld, Gruenfeld gambit accepted4348.8%54.7%
D85Gruenfeld, exchange variation230147.1%56.3%
D85Gruenfeld, modern exchange variation291346.1%56.0%
D86Gruenfeld, exchange, Larsen variation10.0%100.0%
D86Gruenfeld, exchange, Simagin's improved variation8538.8%52.4%
D86Gruenfeld, exchange, Simagin's lesser variation2626.9%55.8%
D86Gruenfeld, exchange, classical variation93046.5%55.2%
D87Gruenfeld, exchange, Seville variation7553.3%62.7%
D87Gruenfeld, exchange, Spassky variation45241.4%54.5%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd18842.0%60.9%
D89Gruenfeld, Spassky variation, main line, 13.Bd37038.6%49.3%
D89Gruenfeld, exchange, Sokolsky variation850.0%37.5%
D90Gruenfeld, Flohr variation19534.4%56.2%
D90Gruenfeld, Schlechter variation1833.3%38.9%
D90Gruenfeld, Three knights variation41547.2%54.2%
D91Gruenfeld, 5.Bg582738.9%48.1%
D92Gruenfeld, 5.Bf463644.7%57.2%
D93Gruenfeld with Bf4 e324050.0%52.5%
D94Gruenfeld with e3 Bd31650.0%56.3%
D94Gruenfeld, 5.e337844.2%57.8%
D94Gruenfeld, Flohr defence1850.0%58.3%
D94Gruenfeld, Makogonov variation7548.0%46.7%
D94Gruenfeld, Opovcensky variation13040.8%54.2%
D94Gruenfeld, Smyslov defence14646.6%56.2%
D95Gruenfeld with e3 & Qb31457.1%64.3%
D95Gruenfeld, Botvinnik variation6243.5%50.8%
D96Gruenfeld, Russian variation19138.7%55.5%
D97Gruenfeld, Russian variation with e42334.8%65.2%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation146543.9%51.1%
D97Gruenfeld, Russian, Byrne (Simagin) variation10838.9%59.3%
D97Gruenfeld, Russian, Levenfish variation742.9%64.3%
D97Gruenfeld, Russian, Prins variation42142.8%57.7%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation16641.0%58.4%
D98Gruenfeld, Russian, Keres variation922.2%55.6%
D98Gruenfeld, Russian, Smyslov variation22941.5%60.5%
D99Gruenfeld defence, Smyslov, Yugoslav variation1127.3%50.0%
D99Gruenfeld defence, Smyslov, main line15439.6%58.1%
E00Catalan opening279042.6%54.9%
E00Neo-Indian (Seirawan) attack15931.4%52.8%
E00Queen's pawn game36441.5%56.5%
E01Catalan, closed38646.6%51.6%
E02Catalan, open, 5.Qa412644.4%58.7%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc46852.9%39.7%
E03Catalan, open, Alekhine variation1421.4%39.3%
E04Catalan, open, 5.Nf3376643.4%53.0%
E05Catalan, open, classical line8549.4%56.5%
E06Catalan, closed, 5.Nf3269648.7%53.6%
E07Catalan, closed, 6...Nbd75335.8%50.0%
E07Catalan, closed, Botvinnik variation6243.5%42.7%
E08Catalan, closed, 7.Qc27737.7%60.4%
E08Catalan, closed, Qc2 & b317441.4%51.7%
E08Catalan, closed, Spassky gambit520.0%50.0%
E09Catalan, closed, main line19934.2%60.3%
E10Blumenfeld counter-gambit28342.4%54.8%
E10Blumenfeld counter-gambit accepted11140.5%55.4%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation14434.7%57.6%
E10Blumenfeld counter-gambit, Spielmann variation6137.7%58.2%
E10Doery defence2142.9%54.8%
E10Dzindzikhashvili defence4949.0%61.2%
E10Queen's pawn game364045.5%55.7%
E11Bogo-Indian defence128739.0%54.9%
E11Bogo-Indian defence, Gruenfeld variation167439.7%56.0%
E11Bogo-Indian defence, Monticelli trap1136.4%45.5%
E11Bogo-Indian defence, Nimzovich variation128237.9%58.0%
E12Queen's Indian defence61241.3%53.7%
E12Queen's Indian, 4.Nc3418639.8%53.1%
E12Queen's Indian, 4.Nc3, Botvinnik variation3020.0%43.3%
E12Queen's Indian, Miles variation121244.1%52.7%
E12Queen's Indian, Petrosian system583842.4%54.2%
E13Queen's Indian, 4.Nc3, main line20135.8%52.2%
E14Queen's Indian, 4.e3155939.6%53.6%
E14Queen's Indian, Averbakh variation20.0%50.0%
E15Queen's Indian, 4.g3176845.6%55.9%
E15Queen's Indian, 4.g3 Bb721539.5%53.7%
E15Queen's Indian, Buerger variation2437.5%60.4%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1322640.1%56.4%
E15Queen's Indian, Rubinstein variation10635.8%58.5%
E16Queen's Indian, Capablanca variation30241.1%56.0%
E16Queen's Indian, Riumin variation19240.1%56.0%
E16Queen's Indian, Yates variation30036.7%58.0%
E17Queen's Indian, 5.Bg2 Be72828.6%39.3%
E17Queen's Indian, Euwe variation5851.7%55.2%
E17Queen's Indian, Opovcensky variation59638.8%53.9%
E17Queen's Indian, anti-Queen's Indian system24537.6%52.2%
E17Queen's Indian, old main line, 6.O-O72841.8%58.8%
E18Queen's Indian, old main line, 7.Nc3147143.4%56.7%
E19Queen's Indian, old main line, 9.Qxc3126545.4%59.0%
E20Nimzo-Indian defence9549.5%51.1%
E20Nimzo-Indian, Kmoch variation59838.0%53.6%
E20Nimzo-Indian, Mikenas attack666.7%50.0%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system35045.7%53.1%
E21Nimzo-Indian, three knights variation204841.5%53.7%
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%
E22Nimzo-Indian, Spielmann variation9241.3%50.0%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc63438.2%54.4%
E23Nimzo-Indian, Spielmann, Karlsbad variation1540.0%40.0%
E23Nimzo-Indian, Spielmann, San Remo variation540.0%80.0%
E24Nimzo-Indian, Saemisch variation14747.6%48.3%
E24Nimzo-Indian, Saemisch, Botvinnik variation4436.4%43.2%
E25Nimzo-Indian, Saemisch variation10340.8%53.4%
E25Nimzo-Indian, Saemisch, Keres variation24945.4%53.2%
E25Nimzo-Indian, Saemisch, Romanovsky variation7042.9%47.1%
E26Nimzo-Indian, Saemisch variation4544.4%51.1%
E26Nimzo-Indian, Saemisch, O'Kelly variation2128.6%57.1%
E27Nimzo-Indian, Saemisch variation4445.5%40.9%
E28Nimzo-Indian, Saemisch variation8924.7%51.7%
E29Nimzo-Indian, Saemisch, Capablanca variation2437.5%43.8%
E29Nimzo-Indian, Saemisch, main line7339.7%55.5%
E30Nimzo-Indian, Leningrad variation52635.0%48.3%
E30Nimzo-Indian, Leningrad, ...b5 gambit4930.6%45.9%
E31Nimzo-Indian, Leningrad, main line16831.0%51.8%
E32Nimzo-Indian, classical variation564742.2%53.7%
E32Nimzo-Indian, classical, Adorjan gambit9544.2%50.5%
E33Nimzo-Indian, classical, 4...Nc66250.0%55.6%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation24839.1%58.7%
E34Nimzo-Indian, classical, Noa variation68952.5%54.0%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed47643.9%50.5%
E36Nimzo-Indian, classical, Botvinnik variation1030.0%65.0%
E36Nimzo-Indian, classical, Noa variation, 5.a324844.8%52.2%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc226047.7%61.9%
E37Nimzo-Indian, classical, San Remo variation30.0%66.7%
E38Nimzo-Indian, classical, 4...c551537.7%60.4%
E39Nimzo-Indian, classical, Pirc variation84638.3%55.0%
E40Nimzo-Indian, 4.e311428.1%56.1%
E40Nimzo-Indian, 4.e3, Taimanov variation5932.2%63.6%
E41Nimzo-Indian, 4.e3 c561843.5%54.1%
E41Nimzo-Indian, e3, Huebner variation44332.7%50.5%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)50444.4%53.8%
E43Nimzo-Indian, Fischer variation51736.9%53.7%
E44Nimzo-Indian, Fischer variation, 5.Ne229136.1%54.5%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation15052.0%57.3%
E46Nimzo-Indian, 4.e3 O-O5930.5%57.6%
E46Nimzo-Indian, Reshevsky variation78544.1%51.2%
E46Nimzo-Indian, Simagin variation9938.4%49.5%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd347146.5%51.7%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d538839.7%48.7%
E49Nimzo-Indian, 4.e3, Botvinnik system16446.3%56.7%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d514740.1%50.0%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d510549.5%48.6%
E51Nimzo-Indian, 4.e3, Ragozin variation2138.1%66.7%
E52Nimzo-Indian, 4.e3, main line with ...b641539.5%52.5%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd73961.5%48.7%
E53Nimzo-Indian, 4.e3, Keres variation8436.9%45.8%
E53Nimzo-Indian, 4.e3, main line with ...c534139.0%55.0%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc114148.6%55.7%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation1968.4%65.8%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation172547.4%55.2%
E56Nimzo-Indian, 4.e3, main line with 7...Nc629853.0%55.7%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd333.3%16.7%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3138144.5%52.9%
E59Nimzo-Indian, 4.e3, main line70443.3%53.1%
E60King's Indian defence50635.6%57.5%
E60King's Indian, 3.Nf3243139.4%57.7%
E60King's Indian, 3.g3129442.0%56.3%
E60King's Indian, 3.g3, counterthrust variation911.1%27.8%
E60King's Indian, Anti-Gruenfeld4434.1%60.2%
E60Queen's pawn, Mengarini attack3531.4%61.4%
E61King's Indian defence, 3.Nc366136.5%55.6%
E61King's Indian, Smyslov system7537.3%52.0%
E62King's Indian, fianchetto variation5836.2%49.1%
E62King's Indian, fianchetto with ...Nc621134.6%54.3%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation52632.3%60.6%
E62King's Indian, fianchetto, Larsen system24540.8%62.0%
E62King's Indian, fianchetto, Simagin variation8135.8%63.6%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation23931.0%59.0%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation24637.4%60.2%
E63King's Indian, fianchetto, Panno variation201437.4%57.2%
E64King's Indian, fianchetto, Yugoslav system8438.1%58.3%
E65King's Indian, fianchetto, Yugoslav, 7.O-O15550.3%52.3%
E66King's Indian, fianchetto, Yugoslav Panno28733.4%56.8%
E67King's Indian, fianchetto with ...Nd77337.0%52.7%
E67King's Indian, fianchetto, classical variation44239.6%55.8%
E68King's Indian, fianchetto, classical variation, 8.e4114038.4%60.2%
E69King's Indian, fianchetto, classical main line41533.7%61.2%
E70King's Indian, 4.e479533.0%58.7%
E70King's Indian, Kramer system29428.6%58.5%
E70King's Indian, accelerated Averbakh system9334.4%55.9%
E71King's Indian, Makagonov system (5.h3)59734.2%59.1%
E72King's Indian with e4 & g35435.2%56.5%
E72King's Indian, Pomar system616.7%58.3%
E73King's Indian, 5.Be23141.9%59.7%
E73King's Indian, Averbakh system81432.1%54.5%
E73King's Indian, Semi-Averbakh system2040.0%55.0%
E74King's Indian, Averbakh, 6...c521733.2%55.8%
E75King's Indian, Averbakh, main line4323.3%60.5%
E76King's Indian, Four pawns attack19836.9%60.4%
E76King's Indian, Four pawns attack, dynamic line13231.8%53.8%
E77King's Indian, Four pawns attack10131.7%57.4%
E77King's Indian, Four pawns attack, 6.Be2944.4%55.6%
E77King's Indian, Four pawns attack, Florentine gambit2100.0%50.0%
E78King's Indian, Four pawns attack, with Be2 and Nf310.0%0.0%
E79King's Indian, Four pawns attack, main line60.0%66.7%
E80King's Indian, Saemisch variation27533.8%57.6%
E81King's Indian, Saemisch, 5...O-O186233.6%55.0%
E81King's Indian, Saemisch, Byrne variation7339.7%52.7%
E82King's Indian, Saemisch, double fianchetto variation8531.8%59.4%
E83King's Indian, Saemisch, 6...Nc65427.8%47.2%
E83King's Indian, Saemisch, Panno formation17042.4%56.5%
E83King's Indian, Saemisch, Ruban variation1136.4%45.5%
E84King's Indian, Saemisch, Panno main line35438.1%52.1%
E85King's Indian, Saemisch, orthodox variation4831.3%51.0%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c632029.1%53.6%
E87King's Indian, Saemisch, orthodox, 7.d524127.4%59.3%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
E88King's Indian, Saemisch, orthodox, 7.d5 c628932.5%58.1%
E89King's Indian, Saemisch, orthodox main line2433.3%62.5%
E90King's Indian, 5.Nf375433.3%57.0%
E90King's Indian, Larsen variation7839.7%60.9%
E90King's Indian, Zinnowitz variation2846.4%55.4%
E91King's Indian, 6.Be254833.0%64.5%
E91King's Indian, Kazakh variation28436.6%55.3%
E92King's Indian, Andersson variation24852.4%50.4%
E92King's Indian, Gligoric-Taimanov system135933.3%58.4%
E92King's Indian, Petrosian system7726.0%50.6%
E92King's Indian, Petrosian system, Stein variation51132.9%53.0%
E92King's Indian, classical variation2339.1%41.3%
E93King's Indian, Petrosian system, main line7634.2%50.0%
E94King's Indian, orthodox variation93536.8%54.4%
E94King's Indian, orthodox, 7...Nbd783533.3%60.6%
E94King's Indian, orthodox, Donner variation14638.4%59.6%
E95King's Indian, orthodox, 7...Nbd7, 8.Re130635.0%55.7%
E96King's Indian, orthodox, 7...Nbd7, main line3342.4%57.6%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)381932.9%56.2%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack117535.6%58.1%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne183126.8%61.0%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack4920.4%67.3%
E99King's Indian, orthodox, Aronin-Taimanov, main line1625.0%62.5%

Created in 2005-2013 by CCRL team
Last games added on July 15, 2017