CCRL 40/40
Downloads and Statistics
September 23, 2017
Testing summary:
Total: 742'849 games
played by 1'930 programs
101715 CPU days (X2 4600+)

White wins: 255'360 (34.4%)
Black wins: 189'584 (25.5%)
Draws: 297'905 (40.1%)
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%0.02 MB
A00Amar gambit10.0%0.0%0.00 MB
A00Amsterdam attack10.0%100.0%0.00 MB
A00Anderssen's opening38440.9%51.4%0.25 MB
A00Anti-Borg (Desprez) opening30.0%33.3%0.00 MB
A00Battambang opening1631.3%46.9%0.01 MB
A00Benko's opening553941.5%52.4%3.41 MB
A00Benko's opening, reversed Alekhine11342.5%48.7%0.08 MB
A00Clemenz (Mead's, Basman's or de Klerk's) opening2931.0%43.1%0.02 MB
A00Dunst (Sleipner, Heinrichsen) opening144135.6%49.7%0.87 MB
A00Durkin's attack650.0%41.7%0.01 MB
A00Global opening425.0%62.5%0.00 MB
A00Grob's attack18643.5%34.7%0.12 MB
A00Grob, Fritz gambit5143.1%27.5%0.03 MB
A00Grob, Romford counter-gambit425.0%62.5%0.00 MB
A00Grob, spike attack633.3%33.3%0.01 MB
A00Lasker simul special333.3%50.0%0.00 MB
A00Mieses opening11730.8%53.0%0.09 MB
A00Novosibirsk opening2133.3%50.0%0.02 MB
A00Polish (Sokolsky) opening153838.2%48.5%0.98 MB
A00Polish, Outflank variation10444.2%48.1%0.08 MB
A00Saragossa opening28229.1%49.3%0.19 MB
A00Van't Kruijs opening44339.7%51.5%0.29 MB
A00Ware (Meadow Hay) opening425.0%62.5%0.00 MB
A01Nimzovich-Larsen attack55136.7%52.6%0.36 MB
A01Nimzovich-Larsen attack, Dutch variation1330.8%46.2%0.01 MB
A01Nimzovich-Larsen attack, English variation15536.1%50.3%0.11 MB
A01Nimzovich-Larsen attack, Indian variation23531.9%50.0%0.16 MB
A01Nimzovich-Larsen attack, classical variation89335.7%50.0%0.59 MB
A01Nimzovich-Larsen attack, modern variation266940.4%50.4%1.65 MB
A01Nimzovich-Larsen attack, symmetrical variation57440.8%49.0%0.37 MB
A02Bird's opening276136.2%48.8%1.69 MB
A02Bird's opening, Swiss gambit250.0%75.0%0.00 MB
A02Bird, From gambit14834.5%50.3%0.09 MB
A02Bird, From gambit, Lasker variation2955.2%58.6%0.02 MB
A02Bird, From gambit, Lipke variation10.0%0.0%0.00 MB
A02Bird, Hobbs gambit560.0%70.0%0.00 MB
A03Bird's opening288836.1%47.8%1.78 MB
A03Bird's opening, Lasker variation8027.5%42.5%0.06 MB
A03Bird's opening, Williams gambit1735.3%70.6%0.01 MB
A03Mujannah opening450.0%25.0%0.01 MB
A04Reti opening683337.9%54.2%4.28 MB
A04Reti v Dutch88934.9%58.9%0.58 MB
A04Reti, Herrstroem gambit20.0%100.0%0.00 MB
A04Reti, Lisitsin gambit deferred1816.7%75.0%0.01 MB
A04Reti, Pirc-Lisitsin gambit11929.4%50.0%0.08 MB
A04Reti, Wade defence20.0%50.0%0.00 MB
A05Reti opening295437.0%53.3%1.90 MB
A05Reti, King's Indian attack108940.5%53.6%0.70 MB
A05Reti, King's Indian attack, Reti-Smyslov variation4938.8%56.1%0.04 MB
A05Reti, King's Indian attack, Spassky's variation27141.3%52.0%0.19 MB
A06Reti opening56037.5%53.2%0.38 MB
A06Reti, Nimzovich-Larsen attack271840.7%49.9%1.73 MB
A06Reti, old Indian attack8924.7%48.3%0.07 MB
A06Santasiere's folly10440.4%42.3%0.08 MB
A06Tennison (Lemberg, Zukertort) gambit1656.3%40.6%0.01 MB
A07Reti, King's Indian attack205842.5%53.2%1.29 MB
A07Reti, King's Indian attack (Barcza system)390841.5%53.7%2.53 MB
A07Reti, King's Indian attack (with ...c5)16141.6%50.0%0.11 MB
A07Reti, King's Indian attack, Keres variation62334.3%54.7%0.42 MB
A07Reti, King's Indian attack, Pachman system10538.1%53.3%0.08 MB
A07Reti, King's Indian attack, Yugoslav variation157240.0%52.8%1.03 MB
A08Reti, King's Indian attack49541.8%52.4%0.34 MB
A08Reti, King's Indian attack, French variation24837.1%48.0%0.17 MB
A09Reti accepted22340.4%52.5%0.16 MB
A09Reti accepted, Keres variation4032.5%68.8%0.03 MB
A09Reti opening49640.5%52.9%0.32 MB
A09Reti, advance variation67540.3%49.2%0.44 MB
A10English opening234437.7%54.9%1.47 MB
A10English, Adorjan defence33337.5%55.1%0.21 MB
A10English, Anglo-Dutch defense59332.5%53.4%0.39 MB
A10English, Jaenisch gambit20.0%100.0%0.00 MB
A11English, Caro-Kann defensive system114840.0%54.1%0.75 MB
A12English, Bled variation1643.8%59.4%0.01 MB
A12English, Capablanca's variation6835.3%47.1%0.05 MB
A12English, Caro-Kann defensive system16038.8%49.4%0.11 MB
A12English, Caro-Kann defensive system, Bogolyubov variation7848.7%52.6%0.06 MB
A12English, London defensive system12042.5%52.1%0.09 MB
A12English, New York (London) defensive system3250.0%43.8%0.03 MB
A12English, Torre defensive system3842.1%57.9%0.03 MB
A13English opening175536.6%51.7%1.16 MB
A13English opening, Agincourt variation113139.8%54.2%0.76 MB
A13English, Kurajica defence6131.1%58.2%0.05 MB
A13English, Neo-Catalan66240.3%52.9%0.43 MB
A13English, Neo-Catalan accepted103445.7%56.8%0.68 MB
A13English, Romanishin gambit24641.1%56.3%0.17 MB
A13English, Wimpey system10240.2%51.5%0.07 MB
A14English, Neo-Catalan declined74443.1%54.2%0.48 MB
A14English, Symmetrical, Keres defence49847.0%57.0%0.33 MB
A15English opening958442.7%53.6%5.76 MB
A15English, 1...Nf6 (Anglo-Indian defense)101739.4%55.1%0.65 MB
A16English opening118835.6%53.0%0.76 MB
A16English, Anglo-Gruenfeld defense21541.9%53.0%0.15 MB
A16English, Anglo-Gruenfeld defense, Korchnoi variation8836.4%58.0%0.06 MB
A16English, Anglo-Gruenfeld, Czech defense15633.3%63.5%0.10 MB
A16English, Anglo-Gruenfeld, Smyslov defense14832.4%55.4%0.10 MB
A17English opening20938.3%53.6%0.14 MB
A17English, Nimzo-English opening160439.7%53.5%1.02 MB
A17English, Queens Indian formation21036.7%59.8%0.14 MB
A17English, Queens Indian, Romanishin variation5628.6%58.9%0.04 MB
A18English, Mikenas-Carls variation9045.6%57.2%0.06 MB
A18English, Mikenas-Carls, Flohr variation28138.1%59.6%0.18 MB
A18English, Mikenas-Carls, Kevitz variation2025.0%47.5%0.01 MB
A19English, Mikenas-Carls, Sicilian variation32042.8%53.9%0.21 MB
A20English opening498838.0%54.4%3.12 MB
A20English, Nimzovich variation6439.1%57.0%0.05 MB
A20English, Nimzovich, Flohr variation13338.3%41.7%0.10 MB
A21English opening128633.4%54.5%0.83 MB
A21English, Keres variation1030.0%45.0%0.01 MB
A21English, Kramnik-Shirov counterattack167341.1%52.3%1.07 MB
A21English, Smyslov defence3630.6%59.7%0.03 MB
A21English, Troeger defence12030.0%53.3%0.08 MB
A22English opening68736.8%50.7%0.46 MB
A22English, Bellon gambit1136.4%63.6%0.01 MB
A22English, Bremen, Smyslov system138738.7%48.8%0.88 MB
A22English, Bremen, reverse dragon61540.3%50.4%0.41 MB
A22English, Carls' Bremen system32939.8%54.3%0.22 MB
A23English, Bremen system, Keres variation52340.9%48.2%0.35 MB
A24English, Bremen system with ...g614240.8%48.6%0.10 MB
A25English, Sicilian reversed66433.4%52.0%0.43 MB
A25English, closed system70634.4%53.9%0.46 MB
A25English, closed system (without ...d6)11628.4%55.6%0.08 MB
A25English, closed, 5.Rb140139.9%51.6%0.26 MB
A25English, closed, 5.Rb1 Taimanov variation20.0%50.0%0.00 MB
A25English, closed, Hort variation3636.1%54.2%0.03 MB
A25English, closed, Taimanov variation2010.0%65.0%0.01 MB
A26English, Botvinnik system28637.8%52.4%0.19 MB
A26English, closed system28137.7%52.0%0.19 MB
A27English, three knights system44834.8%53.1%0.31 MB
A28English, Bradley Beach variation5020.0%38.0%0.04 MB
A28English, Nenarokov variation12040.0%51.7%0.08 MB
A28English, four knights system33844.1%51.0%0.24 MB
A28English, four knights, 4.e392436.0%52.0%0.60 MB
A28English, four knights, Capablanca variation39737.8%55.2%0.27 MB
A28English, four knights, Marini variation74339.4%50.9%0.48 MB
A28English, four knights, Nimzovich variation45034.2%53.8%0.31 MB
A28English, four knights, Romanishin variation42250.5%52.7%0.29 MB
A28English, four knights, Stean variation8342.2%59.6%0.06 MB
A29English, four knights, kingside fianchetto579541.0%51.9%3.57 MB
A30English, symmetrical variation274639.5%54.4%1.73 MB
A30English, symmetrical, hedgehog system251246.7%55.6%1.59 MB
A30English, symmetrical, hedgehog, flexible formation17443.1%54.9%0.12 MB
A31English, symmetrical, Benoni formation81840.7%55.7%0.54 MB
A32English, symmetrical variation32041.6%58.3%0.22 MB
A33English, symmetrical variation137248.1%54.5%0.88 MB
A33English, symmetrical, Geller variation57238.5%54.2%0.35 MB
A34English, symmetrical variation86139.0%53.8%0.57 MB
A34English, symmetrical, Rubinstein system35538.9%52.1%0.23 MB
A34English, symmetrical, three knights system106341.4%55.0%0.66 MB
A35English, symmetrical variation20634.5%52.2%0.15 MB
A35English, symmetrical, four knights system188943.4%53.6%1.20 MB
A36English, symmetrical variation10636.8%56.1%0.08 MB
A36English, symmetrical, Botvinnik system14732.7%51.7%0.10 MB
A36English, symmetrical, Botvinnik system reversed5935.6%56.8%0.04 MB
A36English, ultra-symmetrical variation114838.3%53.1%0.72 MB
A37English, symmetrical variation87240.5%50.2%0.56 MB
A37English, symmetrical, Botvinnik system reversed65937.0%50.7%0.43 MB
A38English, symmetrical variation49545.3%55.4%0.33 MB
A38English, symmetrical, main line with b31100.0%50.0%0.00 MB
A38English, symmetrical, main line with d312849.2%53.5%0.09 MB
A39English, symmetrical, main line with d440741.8%57.5%0.27 MB
A40Beefeater defence3321.2%68.2%0.02 MB
A40Modern defence78137.6%58.4%0.53 MB
A40Polish defence4843.8%51.0%0.04 MB
A40Queen's pawn191837.1%55.2%1.25 MB
A40Queen's pawn, Charlick (Englund) gambit2045.0%62.5%0.02 MB
A40Queen's pawn, English defence16141.0%63.4%0.11 MB
A40Queen's pawn, Franco-Indian (Keres) defence81037.8%55.4%0.51 MB
A40Queen's pawn, Keres defence148543.8%56.7%0.91 MB
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence14930.9%59.1%0.10 MB
A41Modern defence6031.7%55.8%0.04 MB
A41Old Indian defence61731.3%54.5%0.41 MB
A41Old Indian, Tartakower (Wade) variation80134.2%61.0%0.53 MB
A41Queen's Pawn180035.6%54.2%1.17 MB
A41Robatsch defence, Rossolimo variation10936.7%50.5%0.08 MB
A42Modern defence, Averbakh system34032.1%58.7%0.22 MB
A42Modern defence, Averbakh system, Kotov variation10324.3%64.6%0.07 MB
A42Modern defence, Averbakh system, Randspringer variation90.0%77.8%0.01 MB
A42Pterodactyl defence31837.1%64.2%0.21 MB
A43Hawk (Habichd) defence366.7%33.3%0.00 MB
A43Old Benoni defence126835.0%59.2%0.80 MB
A43Old Benoni, Franco-Benoni defence7636.8%56.6%0.05 MB
A43Old Benoni, Mujannah formation3138.7%67.7%0.02 MB
A43Old Benoni, Schmid's system2317.4%56.5%0.02 MB
A44Old Benoni defence1643.8%65.6%0.01 MB
A44Semi-Benoni (`blockade variation')8431.0%61.9%0.06 MB
A45Blackmar-Diemer gambit15930.2%48.4%0.10 MB
A45Canard opening1136.4%27.3%0.01 MB
A45Paleface attack3234.4%45.3%0.02 MB
A45Queen's pawn game175238.8%53.9%1.16 MB
A45Queen's pawn, Bronstein gambit1030.0%55.0%0.01 MB
A45Trompovsky attack (Ruth, Opovcensky opening)324935.5%52.0%2.01 MB
A46Queen's pawn game258140.5%55.0%1.67 MB
A46Queen's pawn, Torre attack115936.2%51.7%0.73 MB
A46Queen's pawn, Torre attack, Wagner gambit333.3%83.3%0.00 MB
A46Queen's pawn, Yusupov-Rubinstein system67440.7%52.4%0.45 MB
A47Queen's Indian defence43238.9%52.1%0.30 MB
A47Queen's Indian, Marienbad system6735.8%53.7%0.05 MB
A47Queen's Indian, Marienbad system, Berg variation1250.0%58.3%0.01 MB
A48King's Indian, East Indian defence73838.6%51.4%0.50 MB
A48King's Indian, London system93139.3%53.3%0.61 MB
A48King's Indian, Torre attack143439.1%49.3%0.93 MB
A49King's Indian, fianchetto without c495540.6%56.4%0.61 MB
A50Kevitz-Trajkovich defence28938.4%58.0%0.20 MB
A50Queen's Indian accelerated13345.9%58.3%0.09 MB
A50Queen's pawn game51337.2%55.3%0.36 MB
A51Budapest defence declined742.9%64.3%0.01 MB
A51Budapest, Fajarowicz variation3525.7%61.4%0.03 MB
A51Budapest, Fajarowicz, Steiner variation366.7%33.3%0.00 MB
A52Budapest defence1850.0%52.8%0.02 MB
A52Budapest, Adler variation14347.6%55.2%0.10 MB
A52Budapest, Alekhine variation1323.1%65.4%0.01 MB
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%0.00 MB
A52Budapest, Alekhine, Abonyi variation5425.9%61.1%0.04 MB
A52Budapest, Rubinstein variation34139.9%60.4%0.23 MB
A53Old Indian defence84039.4%56.1%0.57 MB
A53Old Indian, Janowski variation10431.7%58.2%0.08 MB
A54Old Indian, Dus-Khotimirsky variation728.6%42.9%0.01 MB
A54Old Indian, Ukrainian variation7851.3%55.1%0.06 MB
A54Old Indian, Ukrainian variation, 4.Nf318136.5%58.0%0.13 MB
A55Old Indian, main line39238.3%58.2%0.28 MB
A56Benoni defence55533.5%59.1%0.37 MB
A56Benoni defence, Hromodka system36223.8%65.7%0.21 MB
A56Czech Benoni defence26728.1%68.0%0.19 MB
A56Czech Benoni, King's Indian system3611.1%66.7%0.03 MB
A56Vulture defence1100.0%50.0%0.00 MB
A57Benko gambit58536.8%56.3%0.37 MB
A57Benko gambit half accepted74739.5%57.1%0.46 MB
A57Benko gambit, Zaitsev system6439.1%44.5%0.04 MB
A58Benko gambit accepted62333.1%59.1%0.38 MB
A58Benko gambit, Nd2 variation837.5%56.3%0.01 MB
A58Benko gambit, fianchetto variation14143.3%62.1%0.09 MB
A59Benko gambit3743.2%62.2%0.03 MB
A59Benko gambit, 7.e4633.3%50.0%0.01 MB
A59Benko gambit, Ne2 variation30.0%33.3%0.00 MB
A59Benko gambit, main line11641.4%66.4%0.07 MB
A60Benoni defence10525.7%64.3%0.07 MB
A61Benoni defence45631.4%62.8%0.29 MB
A61Benoni, Nimzovich (knight's tour) variation33828.1%59.3%0.22 MB
A61Benoni, Uhlmann variation19222.4%39.3%0.10 MB
A61Benoni, fianchetto variation1414.3%78.6%0.01 MB
A62Benoni, fianchetto variation64935.6%56.3%0.40 MB
A63Benoni, fianchetto, 9...Nbd77034.3%64.3%0.05 MB
A64Benoni, fianchetto, 11...Re810540.0%41.9%0.07 MB
A65Benoni, 6.e429325.9%56.0%0.18 MB
A66Benoni, Mikenas variation1723.5%47.1%0.01 MB
A66Benoni, pawn storm variation540.0%60.0%0.00 MB
A67Benoni, Taimanov variation19524.6%63.6%0.11 MB
A68Benoni, four pawns attack7135.2%55.6%0.04 MB
A69Benoni, four pawns attack, main line7639.5%46.1%0.05 MB
A70Benoni, classical with e4 and Nf351538.6%59.1%0.32 MB
A70Benoni, classical without 9.O-O425.0%37.5%0.00 MB
A71Benoni, classical, 8.Bg58527.1%54.7%0.06 MB
A72Benoni, classical without 9.O-O4641.3%62.0%0.04 MB
A73Benoni, classical, 9.O-O4623.9%57.6%0.03 MB
A74Benoni, classical, 9...a6, 10.a41942.1%73.7%0.01 MB
A75Benoni, classical with ...a6 and 10...Bg44524.4%72.2%0.03 MB
A76Benoni, classical, 9...Re88837.5%65.3%0.06 MB
A77Benoni, classical, 9...Re8, 10.Nd211625.9%68.1%0.08 MB
A78Benoni, classical with ...Re8 and ...Na63537.1%58.6%0.02 MB
A79Benoni, classical, 11.f35228.8%58.7%0.04 MB
A80Dutch170035.5%54.4%1.09 MB
A80Dutch, 2.Bg5 variation74232.6%53.9%0.47 MB
A80Dutch, Korchnoi attack837.5%43.8%0.01 MB
A80Dutch, Krejcik gambit26534.3%54.2%0.16 MB
A80Dutch, Manhattan (Alapin, Ulvestad) variation1741.2%61.8%0.01 MB
A81Dutch defence286438.5%56.9%1.79 MB
A81Dutch defence, Blackburne variation4528.9%52.2%0.03 MB
A81Dutch, Leningrad, Basman system450.0%75.0%0.00 MB
A81Dutch, Leningrad, Karlsbad variation475.0%62.5%0.00 MB
A82Dutch, Balogh defence633.3%83.3%0.01 MB
A82Dutch, Staunton gambit9934.3%34.3%0.06 MB
A82Dutch, Staunton gambit, Tartakower variation616.7%41.7%0.00 MB
A83Dutch, Staunton gambit, Alekhine variation250.0%25.0%0.00 MB
A83Dutch, Staunton gambit, Chigorin variation6933.3%52.9%0.05 MB
A83Dutch, Staunton gambit, Lasker variation1145.5%40.9%0.01 MB
A83Dutch, Staunton gambit, Nimzovich variation20.0%0.0%0.00 MB
A83Dutch, Staunton gambit, Staunton's line11136.0%49.5%0.07 MB
A84Dutch defence50239.4%55.8%0.35 MB
A84Dutch defence, Rubinstein variation24934.1%59.2%0.16 MB
A84Dutch, Staunton gambit deferred955.6%27.8%0.01 MB
A85Dutch with c4 & Nc357135.4%54.5%0.36 MB
A86Dutch with c4 & g37938.0%65.8%0.06 MB
A86Dutch, Hort-Antoshin system2100.0%50.0%0.00 MB
A86Dutch, Leningrad variation12835.2%55.9%0.09 MB
A87Dutch, Leningrad, main variation29840.3%54.4%0.20 MB
A88Dutch, Leningrad, main variation with c677138.0%57.3%0.50 MB
A89Dutch, Leningrad, main variation with Nc632736.4%63.8%0.22 MB
A90Dutch defence91439.2%61.1%0.62 MB
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation16935.5%60.9%0.12 MB
A90Dutch-Indian, Alekhine variation3933.3%55.1%0.03 MB
A91Dutch defence8032.5%52.5%0.06 MB
A92Dutch defence3850.0%56.6%0.03 MB
A92Dutch defence, Alekhine variation3540.0%62.9%0.03 MB
A92Dutch, stonewall variation5848.3%56.9%0.04 MB
A92Dutch, stonewall with Nc31030.0%45.0%0.01 MB
A93Dutch, stonewall, Botwinnik variation7528.0%59.3%0.05 MB
A94Dutch, stonewall with Ba33351.5%56.1%0.03 MB
A95Dutch, stonewall with Nc320529.3%58.5%0.14 MB
A95Dutch, stonewall: Chekhover variation1100.0%50.0%0.00 MB
A96Dutch, classical variation17035.9%62.1%0.12 MB
A97Dutch, Ilyin-Genevsky variation1816.7%58.3%0.02 MB
A97Dutch, Ilyin-Genevsky, Winter variation5940.7%64.4%0.05 MB
A98Dutch, Ilyin-Genevsky variation with Qc23033.3%53.3%0.03 MB
A99Dutch, Ilyin-Genevsky variation with b38035.0%65.0%0.06 MB
B00Carr's defence450.0%50.0%0.00 MB
B00Corn stalk defence250.0%25.0%0.00 MB
B00KP, Colorado counter20.0%50.0%0.00 MB
B00KP, Nimzovich defence41333.2%61.1%0.27 MB
B00KP, Nimzovich defence, Bogolyubov variation8830.7%58.5%0.06 MB
B00King's pawn opening117137.1%57.3%0.76 MB
B00Lemming defence837.5%56.3%0.01 MB
B00Owen defence26433.0%61.6%0.18 MB
B00Reversed Grob (Borg/Basman defence/macho Grob)1631.3%84.4%0.01 MB
B00St. George (Baker) defence3839.5%59.2%0.03 MB
B01Scandinavian (centre counter) defence234041.8%57.0%1.47 MB
B01Scandinavian defence75841.0%57.8%0.49 MB
B01Scandinavian defence, Gruenfeld variation40.0%75.0%0.00 MB
B01Scandinavian defence, Lasker variation11332.7%65.0%0.08 MB
B01Scandinavian gambit13941.7%52.5%0.10 MB
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%0.00 MB
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%0.00 MB
B01Scandinavian, Icelandic gambit5248.1%54.8%0.04 MB
B01Scandinavian, Kiel variation728.6%85.7%0.01 MB
B01Scandinavian, Marshall variation51444.6%59.8%0.33 MB
B01Scandinavian, Mieses-Kotrvc gambit862.5%43.8%0.01 MB
B01Scandinavian, Pytel-Wade variation246644.4%58.2%1.49 MB
B01Scandinavian, Richter variation250.0%75.0%0.00 MB
B02Alekhine's defence50134.9%54.4%0.33 MB
B02Alekhine's defence, Brooklyn defence714.3%35.7%0.01 MB
B02Alekhine's defence, Kmoch variation714.3%21.4%0.00 MB
B02Alekhine's defence, Krejcik variation250.0%25.0%0.00 MB
B02Alekhine's defence, Maroczy variation8636.0%57.6%0.06 MB
B02Alekhine's defence, Saemisch attack23938.1%48.3%0.16 MB
B02Alekhine's defence, Scandinavian variation13336.1%55.6%0.10 MB
B02Alekhine's defence, Spielmann variation1435.7%46.4%0.01 MB
B02Alekhine's defence, Steiner variation944.4%55.6%0.01 MB
B02Alekhine's defence, Two pawns' (Lasker's) attack26044.2%54.8%0.17 MB
B03Alekhine's defence7128.2%63.4%0.05 MB
B03Alekhine's defence, Balogh variation825.0%75.0%0.01 MB
B03Alekhine's defence, exchange variation54339.0%58.7%0.35 MB
B03Alekhine's defence, exchange, Karpov variation650.0%58.3%0.01 MB
B03Alekhine's defence, four pawns attack21632.4%65.7%0.13 MB
B03Alekhine's defence, four pawns attack, 6...Nc61225.0%45.8%0.01 MB
B03Alekhine's defence, four pawns attack, 7.Be310535.2%67.1%0.07 MB
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%0.01 MB
B03Alekhine's defence, four pawns attack, Planinc variation333.3%50.0%0.00 MB
B03Alekhine's defence, four pawns attack, Trifunovic variation5635.7%67.9%0.04 MB
B03Alekhine's defence, four pawns attack, fianchetto variation10332.0%56.8%0.06 MB
B04Alekhine's defence, modern variation22133.5%61.1%0.15 MB
B04Alekhine's defence, modern, Keres variation4434.1%71.6%0.04 MB
B04Alekhine's defence, modern, Larsen variation73742.3%60.8%0.47 MB
B04Alekhine's defence, modern, Schmid variation13636.0%61.4%0.10 MB
B04Alekhine's defence, modern, fianchetto variation60533.9%57.6%0.40 MB
B05Alekhine's defence, modern variation, 4...Bg455332.2%65.3%0.37 MB
B05Alekhine's defence, modern, Alekhine variation742.9%50.0%0.01 MB
B05Alekhine's defence, modern, Flohr variation8836.4%64.8%0.06 MB
B05Alekhine's defence, modern, Panov variation911.1%50.0%0.01 MB
B05Alekhine's defence, modern, Vitolins attack450.0%50.0%0.00 MB
B06Robatsch (modern) defence473636.2%56.5%2.90 MB
B06Robatsch defence57336.3%58.5%0.37 MB
B06Robatsch defence, Gurgenidze variation4639.1%56.5%0.04 MB
B06Robatsch defence, Pseudo-Austrian attack42833.6%55.8%0.28 MB
B06Robatsch defence, Two knights variation30033.3%62.3%0.20 MB
B06Robatsch defence, Two knights, Suttles variation96538.2%58.4%0.63 MB
B06Robatsch defence, three pawns attack13531.1%63.7%0.10 MB
B07Pirc defence141737.6%57.0%0.88 MB
B07Pirc, 150 attack21638.4%61.3%0.14 MB
B07Pirc, Byrne variation31332.3%57.7%0.20 MB
B07Pirc, Chinese variation250.0%25.0%0.00 MB
B07Pirc, Holmov system1844.4%61.1%0.02 MB
B07Pirc, Sveshnikov system28234.4%52.7%0.19 MB
B07Pirc, Ufimtsev-Pytel variation31739.1%59.6%0.23 MB
B07Pirc, bayonet (Mariotti) attack2755.6%57.4%0.02 MB
B07Robatsch defence, Geller's system54737.1%57.1%0.38 MB
B08Pirc, classical (two knights) system44336.8%57.9%0.31 MB
B08Pirc, classical system, 5.Be2210238.6%57.0%1.37 MB
B08Pirc, classical, h3 system37038.6%59.3%0.25 MB
B09Pirc, Austrian attack16540.6%59.7%0.12 MB
B09Pirc, Austrian attack, 6.Bd3105139.0%60.1%0.64 MB
B09Pirc, Austrian attack, 6.Be326032.3%58.5%0.17 MB
B09Pirc, Austrian attack, 6.e58543.5%57.1%0.06 MB
B09Pirc, Austrian attack, Ljubojevic variation1442.9%50.0%0.01 MB
B09Pirc, Austrian attack, dragon formation73838.9%58.6%0.44 MB
B10Caro-Kann defence190435.6%52.9%1.20 MB
B10Caro-Kann, Goldman (Spielmann) variation4544.4%46.7%0.04 MB
B10Caro-Kann, Hillbilly attack20.0%50.0%0.00 MB
B10Caro-Kann, Two knights variation27536.7%60.5%0.19 MB
B10Caro-Kann, anti-Caro-Kann defence49133.6%59.8%0.33 MB
B10Caro-Kann, anti-anti-Caro-Kann defence125448.5%52.2%0.80 MB
B10Caro-Kann, closed (Breyer) variation56838.7%52.3%0.38 MB
B11Caro-Kann, Two knights, 3...Bg470739.0%55.6%0.44 MB
B12Caro-Kann defence18436.4%51.9%0.13 MB
B12Caro-Kann, 3.Nd213942.4%58.6%0.10 MB
B12Caro-Kann, Edinburgh variation2740.7%57.4%0.02 MB
B12Caro-Kann, Tartakower (fantasy) variation51937.2%54.4%0.33 MB
B12Caro-Kann, advance variation903137.9%56.3%5.33 MB
B12Caro-Kann, advance, Short variation3834.2%51.3%0.03 MB
B12Caro-Masi defence1100.0%50.0%0.00 MB
B12de Bruycker defence520.0%70.0%0.00 MB
B13Caro-Kann, Panov-Botvinnik attack91847.9%52.9%0.58 MB
B13Caro-Kann, Panov-Botvinnik, Czerniak variation2630.8%50.0%0.02 MB
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1118.2%54.5%0.01 MB
B13Caro-Kann, Panov-Botvinnik, Herzog defence1435.7%46.4%0.01 MB
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation10.0%100.0%0.00 MB
B13Caro-Kann, Panov-Botvinnik, normal variation8451.2%56.5%0.06 MB
B13Caro-Kann, exchange variation72140.1%51.9%0.48 MB
B13Caro-Kann, exchange, Rubinstein variation12135.5%52.5%0.09 MB
B14Caro-Kann, Panov-Botvinnik attack, 5...e6169246.4%55.5%1.09 MB
B14Caro-Kann, Panov-Botvinnik attack, 5...g628549.8%53.3%0.20 MB
B15Caro-Kann defence21132.2%51.7%0.14 MB
B15Caro-Kann, Alekhine gambit2339.1%50.0%0.02 MB
B15Caro-Kann, Forgacs variation20841.3%55.3%0.14 MB
B15Caro-Kann, Gurgenidze counter-attack366.7%66.7%0.00 MB
B15Caro-Kann, Gurgenidze system28738.7%57.3%0.20 MB
B15Caro-Kann, Rasa-Studier gambit911.1%38.9%0.01 MB
B15Caro-Kann, Tartakower (Nimzovich) variation28641.6%55.1%0.20 MB
B16Caro-Kann, Bronstein-Larsen variation42931.0%61.9%0.29 MB
B17Caro-Kann, Steinitz variation353442.7%53.7%2.21 MB
B18Caro-Kann, classical variation137945.0%54.1%0.88 MB
B18Caro-Kann, classical, 6.h446740.7%54.6%0.30 MB
B18Caro-Kann, classical, Flohr variation7256.9%47.9%0.05 MB
B18Caro-Kann, classical, Maroczy attack1020.0%40.0%0.01 MB
B19Caro-Kann, classical, 7...Nd736650.8%53.0%0.23 MB
B19Caro-Kann, classical, Spassky variation258439.2%56.7%1.53 MB
B20Sicilian defence185635.9%50.5%1.19 MB
B20Sicilian, Keres variation (2.Ne2)55240.8%52.6%0.36 MB
B20Sicilian, Steinitz variation33444.0%49.9%0.24 MB
B20Sicilian, wing gambit5750.9%41.2%0.05 MB
B20Sicilian, wing gambit, Carlsbad variation944.4%44.4%0.01 MB
B20Sicilian, wing gambit, Marshall variation6129.5%55.7%0.04 MB
B21Sicilian, Andreaschek gambit1442.9%57.1%0.01 MB
B21Sicilian, Grand Prix attack139435.8%52.5%0.87 MB
B21Sicilian, Smith-Morra gambit63941.0%47.4%0.40 MB
B22Sicilian, 2.c3, Heidenfeld variation5726.3%44.7%0.04 MB
B22Sicilian, Alapin's variation (2.c3)544043.5%54.5%3.41 MB
B23Sicilian, Grand Prix attack62035.6%49.4%0.40 MB
B23Sicilian, Grand Prix attack, Schofman variation15040.7%53.0%0.10 MB
B23Sicilian, chameleon variation50234.7%58.0%0.32 MB
B23Sicilian, closed266938.5%51.6%1.66 MB
B23Sicilian, closed, 2...Nc6153741.4%51.9%0.98 MB
B23Sicilian, closed, Korchnoi variation11155.0%51.8%0.08 MB
B24Sicilian, closed37436.9%48.9%0.25 MB
B24Sicilian, closed, Smyslov variation2133.3%54.8%0.02 MB
B25Sicilian, closed21336.6%48.8%0.15 MB
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)3531.4%47.1%0.03 MB
B25Sicilian, closed, 6.f438840.5%50.9%0.26 MB
B25Sicilian, closed, 6.f4 e5 (Botvinnik)2646.2%53.8%0.02 MB
B26Sicilian, closed, 6.Be355032.9%49.5%0.36 MB
B27Sicilian defence1631.3%53.1%0.01 MB
B27Sicilian, Hungarian variation320740.9%57.8%2.09 MB
B27Sicilian, Katalimov variation12446.0%61.7%0.09 MB
B27Sicilian, Quinteros variation3537.1%64.3%0.03 MB
B28Sicilian, O'Kelly variation26738.6%55.6%0.18 MB
B29Sicilian, Nimzovich-Rubinstein variation58041.0%60.0%0.37 MB
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit3056.7%45.0%0.02 MB
B30Sicilian defence226840.7%54.5%1.46 MB
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)383637.6%56.2%2.37 MB
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)244541.2%55.8%1.52 MB
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation1957.9%50.0%0.02 MB
B32Sicilian defence73438.3%56.3%0.47 MB
B32Sicilian, Flohr variation20132.3%60.9%0.14 MB
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation105039.5%56.7%0.66 MB
B32Sicilian, Labourdonnais-Loewenthal variation20242.6%59.9%0.14 MB
B32Sicilian, Nimzovich variation2339.1%54.3%0.02 MB
B33Sicilian defence39634.3%54.0%0.26 MB
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation86735.3%55.4%0.53 MB
B33Sicilian, Pelikan, Bird variation21938.4%64.4%0.14 MB
B33Sicilian, Pelikan, Chelyabinsk variation199135.6%57.2%1.18 MB
B33Sicilian, Sveshnikov variation129338.6%50.9%0.75 MB
B34Sicilian, accelerated fianchetto, exchange variation1747.1%70.6%0.01 MB
B34Sicilian, accelerated fianchetto, modern variation30036.7%52.3%0.21 MB
B35Sicilian, accelerated fianchetto, modern variation with Bc4182343.4%52.9%1.17 MB
B36Sicilian, accelerated fianchetto, Gurgenidze variation23043.5%60.4%0.17 MB
B36Sicilian, accelerated fianchetto, Maroczy bind86144.6%58.0%0.57 MB
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg711647.4%55.6%0.08 MB
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%0.00 MB
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3105144.3%57.4%0.69 MB
B39Sicilian, accelerated fianchetto, Breyer variation58340.3%57.9%0.39 MB
B40Sicilian defence433639.1%54.0%2.75 MB
B40Sicilian, Anderssen variation67740.8%58.1%0.44 MB
B40Sicilian, Marshall variation10.0%100.0%0.00 MB
B40Sicilian, Pin variation (Sicilian counter-attack)1346.2%69.2%0.01 MB
B40Sicilian, Pin, Koch variation3625.0%79.2%0.03 MB
B41Sicilian, Kan variation19240.1%54.4%0.13 MB
B41Sicilian, Kan, Maroczy bind (Reti variation)41136.0%57.7%0.27 MB
B41Sicilian, Kan, Maroczy bind - Bronstein variation1936.8%28.9%0.01 MB
B42Sicilian, Kan, 5.Bd3160436.6%58.1%1.05 MB
B42Sicilian, Kan, Gipslis variation7839.7%63.5%0.06 MB
B42Sicilian, Kan, Polugaievsky variation120135.7%54.3%0.78 MB
B42Sicilian, Kan, Swiss cheese variation24735.6%61.1%0.17 MB
B43Sicilian, Kan, 5.Nc3250838.7%56.5%1.55 MB
B44Sicilian defence30243.4%52.5%0.20 MB
B44Sicilian, Szen (`anti-Taimanov') variation75438.9%54.2%0.51 MB
B44Sicilian, Szen variation, Dely-Kasparov gambit1957.9%60.5%0.02 MB
B44Sicilian, Szen, hedgehog variation22439.3%50.9%0.15 MB
B45Sicilian, Taimanov variation172637.9%56.9%1.05 MB
B45Sicilian, Taimanov, American attack1741.2%44.1%0.01 MB
B46Sicilian, Taimanov variation293838.3%54.9%1.82 MB
B47Sicilian, Taimanov (Bastrikov) variation357241.3%54.1%2.21 MB
B48Sicilian, Taimanov variation294237.1%55.8%1.78 MB
B49Sicilian, Taimanov variation57244.6%58.3%0.40 MB
B50Sicilian316940.9%52.8%2.07 MB
B50Sicilian, wing gambit deferred2123.8%35.7%0.02 MB
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack141338.9%55.4%0.92 MB
B52Sicilian, Canal-Sokolsky attack, 3...Bd7149242.9%49.8%0.95 MB
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit19139.8%57.6%0.12 MB
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation72943.6%55.6%0.46 MB
B53Sicilian, Chekhover variation100241.9%49.5%0.65 MB
B53Sicilian, Chekhover, Zaitsev variation4221.4%58.3%0.03 MB
B54Sicilian58737.6%55.6%0.40 MB
B54Sicilian, Prins (Moscow) variation36637.2%55.7%0.25 MB
B55Sicilian, Prins variation, Venice attack3641.7%51.4%0.02 MB
B56Sicilian141639.6%53.4%0.92 MB
B56Sicilian, Venice attack5137.3%63.7%0.04 MB
B57Sicilian, Magnus Smith trap1050.0%35.0%0.01 MB
B57Sicilian, Sozin, Benko variation124838.9%51.7%0.84 MB
B57Sicilian, Sozin, not Scheveningen21441.1%56.1%0.15 MB
B58Sicilian, Boleslavsky variation42536.7%47.8%0.28 MB
B58Sicilian, Boleslavsky, Louma variation4535.6%57.8%0.03 MB
B58Sicilian, classical20145.3%46.5%0.14 MB
B59Sicilian, Boleslavsky variation, 7.Nb311947.1%52.1%0.09 MB
B60Sicilian, Richter-Rauzer55234.8%57.6%0.35 MB
B60Sicilian, Richter-Rauzer, Bondarevsky variation2552.0%58.0%0.02 MB
B60Sicilian, Richter-Rauzer, Larsen variation12631.0%61.5%0.08 MB
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd236936.9%60.7%0.23 MB
B62Sicilian, Richter-Rauzer, 6...e64337.2%58.1%0.04 MB
B62Sicilian, Richter-Rauzer, Keres variation5726.3%51.8%0.04 MB
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation4634.8%52.2%0.03 MB
B62Sicilian, Richter-Rauzer, Podvebrady variation1656.3%34.4%0.01 MB
B62Sicilian, Richter-Rauzer, Richter attack10.0%100.0%0.00 MB
B63Sicilian, Richter-Rauzer, Rauzer attack13136.6%57.3%0.10 MB
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7105837.1%55.8%0.64 MB
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f425238.5%54.2%0.17 MB
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%0.01 MB
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd450640.1%55.8%0.31 MB
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6557333.6%51.4%3.21 MB
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7261633.4%55.6%1.56 MB
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be79730.9%57.7%0.07 MB
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf67233.3%61.1%0.05 MB
B70Sicilian, dragon variation66041.4%51.7%0.44 MB
B71Sicilian, dragon, Levenfish variation3231.3%53.1%0.02 MB
B71Sicilian, dragon, Levenfish; Flohr variation366.7%33.3%0.00 MB
B72Sicilian, dragon, 6.Be37732.5%53.9%0.05 MB
B72Sicilian, dragon, classical attack8038.8%51.9%0.06 MB
B72Sicilian, dragon, classical, Amsterdam variation4124.4%48.8%0.03 MB
B72Sicilian, dragon, classical, Grigoriev variation2445.8%52.1%0.02 MB
B72Sicilian, dragon, classical, Nottingham variation1844.4%55.6%0.02 MB
B73Sicilian, dragon, classical, 8.O-O34043.8%51.9%0.24 MB
B73Sicilian, dragon, classical, Richter variation9843.9%56.6%0.07 MB
B73Sicilian, dragon, classical, Zollner gambit837.5%43.8%0.01 MB
B74Sicilian, dragon, classical, 9.Nb334052.1%47.5%0.24 MB
B74Sicilian, dragon, classical, Alekhine variation2347.8%67.4%0.02 MB
B74Sicilian, dragon, classical, Reti-Tartakower variation8144.4%55.6%0.06 MB
B74Sicilian, dragon, classical, Spielmann variation837.5%56.3%0.01 MB
B75Sicilian, dragon, Yugoslav attack23530.2%57.2%0.15 MB
B76Sicilian, dragon, Yugoslav attack, 7...O-O28534.7%51.8%0.19 MB
B76Sicilian, dragon, Yugoslav attack, Rauser variation87632.9%65.0%0.51 MB
B77Sicilian, dragon, Yugoslav attack, 9...Bd719543.1%55.9%0.12 MB
B77Sicilian, dragon, Yugoslav attack, 9.Bc410333.0%49.5%0.07 MB
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O29028.3%55.2%0.17 MB
B79Sicilian, dragon, Yugoslav attack, 12.h41030.0%65.0%0.01 MB
B80Sicilian, Scheveningen variation117431.0%54.5%0.73 MB
B80Sicilian, Scheveningen, English variation13532.6%52.6%0.08 MB
B80Sicilian, Scheveningen, Vitolins variation4746.8%51.1%0.04 MB
B80Sicilian, Scheveningen, fianchetto variation17133.9%51.5%0.13 MB
B81Sicilian, Scheveningen, Keres attack213934.2%59.5%1.23 MB
B82Sicilian, Scheveningen, 6.f442232.0%57.5%0.27 MB
B82Sicilian, Scheveningen, Tal variation9635.4%59.4%0.06 MB
B83Sicilian, Scheveningen, 6.Be251939.7%52.8%0.36 MB
B83Sicilian, modern Scheveningen40542.5%47.7%0.28 MB
B83Sicilian, modern Scheveningen, main line49244.3%53.7%0.33 MB
B83Sicilian, modern Scheveningen, main line with Nb38636.0%57.6%0.06 MB
B84Sicilian, Scheveningen (Paulsen), classical variation348138.6%51.7%2.17 MB
B84Sicilian, Scheveningen, classical, Nd7 system5933.9%49.2%0.04 MB
B85Sicilian, Scheveningen, classical13040.8%51.9%0.09 MB
B85Sicilian, Scheveningen, classical main line33647.0%55.4%0.23 MB
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%0.00 MB
B85Sicilian, Scheveningen, classical, Maroczy system2536.0%54.0%0.02 MB
B86Sicilian, Sozin attack14741.5%54.1%0.11 MB
B87Sicilian, Sozin with ...a6 and ...b573736.6%51.2%0.48 MB
B88Sicilian, Sozin, Fischer variation1346.2%53.8%0.01 MB
B88Sicilian, Sozin, Leonhardt variation48741.3%54.7%0.32 MB
B89Sicilian, Sozin, 7.Be395636.8%50.4%0.59 MB
B89Sicilian, Velimirovic attack69733.4%51.3%0.44 MB
B90Sicilian, Najdorf241436.6%53.3%1.45 MB
B90Sicilian, Najdorf, Adams attack95437.2%51.7%0.56 MB
B90Sicilian, Najdorf, Byrne (English) attack1815335.2%53.2%10.37 MB
B90Sicilian, Najdorf, Lipnitzky attack86635.6%49.9%0.54 MB
B91Sicilian, Najdorf, Zagreb (fianchetto) variation58637.7%53.8%0.38 MB
B92Sicilian, Najdorf, Opovcensky variation477740.0%53.1%3.01 MB
B93Sicilian, Najdorf, 6.f4151440.1%50.7%0.93 MB
B94Sicilian, Najdorf, 6.Bg567335.8%53.4%0.42 MB
B95Sicilian, Najdorf, 6...e696338.7%49.8%0.58 MB
B96Sicilian, Najdorf, 7.f4115333.8%51.1%0.66 MB
B96Sicilian, Najdorf, Polugayevsky variation9137.4%53.8%0.06 MB
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3122.6%56.5%0.02 MB
B97Sicilian, Najdorf, 7...Qb6142233.1%46.3%0.86 MB
B97Sicilian, Najdorf, Poisoned pawn variation106044.7%49.8%0.55 MB
B98Sicilian, Najdorf variation32429.9%57.6%0.20 MB
B98Sicilian, Najdorf, 7...Be711833.9%53.4%0.08 MB
B98Sicilian, Najdorf, Browne variation4228.6%61.9%0.03 MB
B98Sicilian, Najdorf, Goteborg (Argentine) variation2045.0%47.5%0.01 MB
B99Sicilian, Najdorf, 7...Be7 main line56029.3%53.6%0.31 MB
C00French defence47433.5%57.3%0.32 MB
C00French defence, Steiner variation67143.2%51.3%0.44 MB
C00French, Alapin variation475.0%62.5%0.01 MB
C00French, Chigorin variation68031.5%50.9%0.45 MB
C00French, King's Indian attack194437.9%51.0%1.28 MB
C00French, Labourdonnais variation21232.5%46.0%0.14 MB
C00French, Pelikan variation6233.9%52.4%0.05 MB
C00French, Reti (Spielmann) variation15242.1%51.3%0.10 MB
C00French, Reversed Philidor formation1136.4%63.6%0.01 MB
C00French, Schlechter variation17041.2%49.4%0.13 MB
C00French, Steinitz attack911.1%27.8%0.01 MB
C00French, Two knights variation18834.6%51.3%0.13 MB
C00French, Wing gambit2850.0%57.1%0.02 MB
C00Lengfellner system520.0%90.0%0.00 MB
C00St. George defence8650.0%63.4%0.07 MB
C01French, exchange variation121744.0%53.7%0.79 MB
C01French, exchange, Bogolyubov variation333.3%50.0%0.00 MB
C01French, exchange, Svenonius variation3339.4%56.1%0.03 MB
C02French, advance variation105432.7%55.7%0.67 MB
C02French, advance, Euwe variation122335.8%54.3%0.77 MB
C02French, advance, Milner-Barry gambit9634.4%46.4%0.07 MB
C02French, advance, Nimzovich system9031.1%43.3%0.07 MB
C02French, advance, Nimzovich variation560.0%50.0%0.01 MB
C02French, advance, Paulsen attack167233.6%54.8%1.03 MB
C02French, advance, Steinitz variation32732.7%53.1%0.21 MB
C02French, advance, Wade variation31939.5%56.7%0.21 MB
C03French, Tarrasch179244.5%56.9%1.14 MB
C03French, Tarrasch, Guimard variation5625.0%66.1%0.04 MB
C04French, Tarrasch, Guimard main line29929.4%59.5%0.21 MB
C05French, Tarrasch, Botvinnik variation4330.2%64.0%0.03 MB
C05French, Tarrasch, closed variation88931.8%59.9%0.56 MB
C06French, Tarrasch, Leningrad variation1717.6%85.3%0.01 MB
C06French, Tarrasch, closed variation, main line98137.6%59.5%0.61 MB
C07French, Tarrasch, Eliskases variation11146.8%53.2%0.08 MB
C07French, Tarrasch, open variation339447.6%53.5%2.11 MB
C08French, Tarrasch, open, 4.ed ed120050.1%54.5%0.77 MB
C09French, Tarrasch, open variation, main line101249.1%56.8%0.68 MB
C10French, Fort Knox variation57740.2%57.4%0.37 MB
C10French, Frere (Becker) variation1533.3%63.3%0.01 MB
C10French, Marshall variation250.0%25.0%0.00 MB
C10French, Paulsen variation54933.0%58.0%0.36 MB
C10French, Rubinstein variation200049.4%55.3%1.22 MB
C10French, Rubinstein, Capablanca line771.4%50.0%0.01 MB
C11French defence14740.8%54.4%0.10 MB
C11French, Burn variation478944.2%52.9%2.83 MB
C11French, Henneberger variation1338.5%50.0%0.01 MB
C11French, Steinitz variation90438.8%54.5%0.57 MB
C11French, Steinitz, Boleslavsky variation309734.8%57.4%1.74 MB
C11French, Steinitz, Bradford attack1100.0%50.0%0.00 MB
C11French, Steinitz, Gledhill attack10831.5%55.6%0.07 MB
C11French, Swiss variation4247.6%57.1%0.03 MB
C12French, MacCutcheon variation10842.6%50.0%0.08 MB
C12French, MacCutcheon, Bernstein variation1533.3%56.7%0.01 MB
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%0.00 MB
C12French, MacCutcheon, Chigorin variation5540.0%49.1%0.04 MB
C12French, MacCutcheon, Dr. Olland (Dutch) variation4825.0%66.7%0.03 MB
C12French, MacCutcheon, Duras variation425.0%62.5%0.00 MB
C12French, MacCutcheon, Grigoriev variation1942.1%52.6%0.02 MB
C12French, MacCutcheon, Janowski variation12836.7%57.4%0.08 MB
C12French, MacCutcheon, Lasker variation20327.6%59.1%0.15 MB
C12French, MacCutcheon, Lasker variation, 8...g636036.4%59.3%0.22 MB
C12French, MacCutcheon, Tartakower variation20.0%100.0%0.00 MB
C12French, MacCutcheon, advance variation1428.6%21.4%0.01 MB
C13French, Albin-Alekhine-Chatard attack20730.9%54.6%0.13 MB
C13French, Albin-Alekhine-Chatard attack, Breyer variation6639.4%65.2%0.05 MB
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1233.3%66.7%0.01 MB
C13French, Albin-Alekhine-Chatard attack, Spielmann variation5742.1%70.2%0.04 MB
C13French, Albin-Alekhine-Chatard attack, Teichmann variation250.0%75.0%0.00 MB
C13French, classical2842.9%42.9%0.02 MB
C13French, classical, Anderssen variation1127.3%40.9%0.01 MB
C13French, classical, Anderssen-Richter variation825.0%50.0%0.01 MB
C13French, classical, Frankfurt variation837.5%81.3%0.01 MB
C13French, classical, Tartakower variation2236.4%45.5%0.02 MB
C13French, classical, Vistaneckis (Nimzovich) variation90.0%66.7%0.01 MB
C14French, classical variation425.0%12.5%0.00 MB
C14French, classical, Alapin variation8446.4%54.2%0.06 MB
C14French, classical, Pollock variation714.3%35.7%0.00 MB
C14French, classical, Rubinstein variation2737.0%55.6%0.02 MB
C14French, classical, Stahlberg variation650.0%58.3%0.00 MB
C14French, classical, Steinitz variation64734.8%57.7%0.38 MB
C14French, classical, Tarrasch variation70.0%57.1%0.01 MB
C15French, Winawer (Nimzovich) variation64841.5%55.9%0.43 MB
C15French, Winawer, Alekhine (Maroczy) gambit15136.4%55.3%0.11 MB
C15French, Winawer, Alekhine gambit20.0%50.0%0.00 MB
C15French, Winawer, Alekhine gambit, Kan variation4445.5%45.5%0.03 MB
C15French, Winawer, Kondratiyev variation1100.0%50.0%0.00 MB
C15French, Winawer, fingerslip variation3043.3%35.0%0.02 MB
C16French, Winawer, Petrosian variation18531.4%55.1%0.12 MB
C16French, Winawer, advance variation66134.3%57.7%0.43 MB
C17French, Winawer, advance variation5240.4%58.7%0.04 MB
C17French, Winawer, advance, 5.a332929.5%63.4%0.19 MB
C17French, Winawer, advance, Bogolyubov variation33239.2%51.2%0.22 MB
C17French, Winawer, advance, Rauzer variation633.3%66.7%0.00 MB
C17French, Winawer, advance, Russian variation5238.5%53.8%0.03 MB
C18French, Winawer, advance variation40726.5%63.4%0.26 MB
C18French, Winawer, classical variation26033.1%58.1%0.17 MB
C19French, Winawer, advance, 6...Ne725334.4%56.3%0.16 MB
C19French, Winawer, advance, Smyslov variation14727.2%61.2%0.10 MB
C19French, Winawer, advance, poisoned pawn variation237033.4%60.5%1.50 MB
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%0.00 MB
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation52229.1%62.6%0.28 MB
C19French, Winawer, advance, positional main line98430.1%57.5%0.64 MB
C20Alapin's opening1729.4%67.6%0.01 MB
C20KP, Indian opening5435.2%41.7%0.04 MB
C20KP, King's head opening250.0%25.0%0.00 MB
C20KP, Lopez opening1233.3%33.3%0.01 MB
C20KP, Mengarini's opening2040.0%25.0%0.02 MB
C20KP, Napoleon's opening633.3%50.0%0.00 MB
C20KP, Patzer opening2227.3%31.8%0.02 MB
C20King's pawn game2236.4%54.5%0.02 MB
C21Centre game14343.4%58.0%0.10 MB
C21Danish gambit10941.3%47.2%0.08 MB
C21Danish gambit, Collijn defence475.0%37.5%0.00 MB
C21Danish gambit, Schlechter defence714.3%50.0%0.00 MB
C21Danish gambit, Soerensen defence2657.7%55.8%0.02 MB
C21Halasz gambit450.0%50.0%0.00 MB
C22Centre game39438.3%46.3%0.25 MB
C22Centre game, Berger variation35237.5%54.8%0.23 MB
C22Centre game, Charousek variation450.0%50.0%0.00 MB
C22Centre game, Hall variation333.3%50.0%0.00 MB
C22Centre game, Paulsen attack17937.4%51.7%0.11 MB
C23Bishop's opening15335.9%54.6%0.11 MB
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%0.00 MB
C23Bishop's opening, Classical variation4839.6%53.1%0.03 MB
C23Bishop's opening, Lisitsyn variation10.0%0.0%0.00 MB
C23Bishop's opening, Lopez gambit20.0%0.0%0.00 MB
C23Bishop's opening, MacDonnell double gambit250.0%25.0%0.00 MB
C23Bishop's opening, Philidor counter-attack13757.7%48.5%0.09 MB
C23Bishop's opening, Philidor variation944.4%55.6%0.01 MB
C24Bishop's opening, Berlin defence88541.8%54.1%0.59 MB
C24Bishop's opening, Ponziani gambit250.0%25.0%0.00 MB
C24Bishop's opening, Urusov gambit3525.7%38.6%0.02 MB
C25Vienna gambit2725.9%53.7%0.02 MB
C25Vienna game24134.0%60.6%0.17 MB
C25Vienna game, Max Lange defence2142.9%50.0%0.02 MB
C25Vienna, Paulsen variation6833.8%56.6%0.05 MB
C25Vienna, Pierce gambit757.1%57.1%0.01 MB
C25Vienna, Steinitz gambit10.0%0.0%0.00 MB
C26Vienna game23645.3%54.0%0.17 MB
C26Vienna, Falkbeer variation4344.2%54.7%0.03 MB
C26Vienna, Mengarini variation1060.0%40.0%0.01 MB
C26Vienna, Paulsen-Mieses variation35441.0%53.5%0.23 MB
C27Boden-Kieseritsky gambit4032.5%31.3%0.03 MB
C27Boden-Kieseritsky gambit, Lichtenhein defence560.0%30.0%0.01 MB
C27Vienna game9245.7%54.3%0.06 MB
C27Vienna, Alekhine variation1338.5%50.0%0.01 MB
C27Vienna, `Frankenstein-Dracula' variation10.0%100.0%0.00 MB
C28Vienna game33342.0%53.5%0.23 MB
C29Vienna gambit16139.1%46.3%0.11 MB
C29Vienna gambit, Bardeleben variation650.0%25.0%0.00 MB
C29Vienna gambit, Breyer variation8630.2%55.8%0.06 MB
C29Vienna gambit, Kaufmann variation837.5%68.8%0.01 MB
C29Vienna gambit, Paulsen attack4100.0%50.0%0.00 MB
C29Vienna gambit, Steinitz variation540.0%40.0%0.00 MB
C29Vienna gambit, Wurzburger trap20.0%100.0%0.00 MB
C30KGD, 2...Nf62626.9%59.6%0.02 MB
C30KGD, Keene's defence560.0%70.0%0.01 MB
C30KGD, Mafia defence837.5%68.8%0.01 MB
C30KGD, Norwalde variation147.1%82.1%0.01 MB
C30KGD, classical counter-gambit10.0%0.0%0.00 MB
C30KGD, classical variation4427.3%59.1%0.03 MB
C30KGD, classical, 4.c32931.0%60.3%0.02 MB
C30KGD, classical, Marshall attack1100.0%50.0%0.00 MB
C30KGD, classical, Reti variation1100.0%50.0%0.00 MB
C30KGD, classical, Svenonius variation1100.0%50.0%0.00 MB
C30King's gambit7338.4%58.9%0.05 MB
C31KGD, Falkbeer counter-gambit2236.4%54.5%0.02 MB
C31KGD, Falkbeer, 3...e4683.3%58.3%0.01 MB
C31KGD, Falkbeer, 4.d3650.0%75.0%0.01 MB
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%0.00 MB
C31KGD, Falkbeer, Nimzovich variation560.0%70.0%0.01 MB
C31KGD, Falkbeer, Rubinstein variation520.0%70.0%0.00 MB
C31KGD, Falkbeer, Tartakower variation475.0%62.5%0.00 MB
C31KGD, Nimzovich counter-gambit1553.3%73.3%0.01 MB
C32KGD, Falkbeer, 5.de837.5%43.8%0.01 MB
C32KGD, Falkbeer, Charousek gambit2100.0%50.0%0.00 MB
C32KGD, Falkbeer, Keres variation10.0%100.0%0.00 MB
C32KGD, Falkbeer, Reti variation450.0%50.0%0.00 MB
C32KGD, Falkbeer, main line, 7...Bf5616.7%91.7%0.01 MB
C33KGA, Breyer gambit333.3%50.0%0.00 MB
C33KGA, Carrera (Basman) gambit10.0%100.0%0.00 MB
C33KGA, Keres (Mason-Steinitz) gambit1450.0%32.1%0.01 MB
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit333.3%50.0%0.00 MB
C33KGA, bishop's gambit3537.1%50.0%0.02 MB
C33KGA, bishop's gambit, Bledow variation2412.5%31.3%0.02 MB
C33KGA, bishop's gambit, Boden defence250.0%25.0%0.00 MB
C33KGA, bishop's gambit, Bogolyubov variation728.6%28.6%0.01 MB
C33KGA, bishop's gambit, Cozio (Morphy) defence2100.0%50.0%0.00 MB
C33KGA, bishop's gambit, Gifford variation333.3%50.0%0.00 MB
C33KGA, bishop's gambit, Jaenisch variation8442.9%48.8%0.05 MB
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit425.0%62.5%0.00 MB
C33KGA, bishop's gambit, Maurian defence475.0%37.5%0.00 MB
C33KGA, bishop's gambit, Morphy variation1526.7%60.0%0.01 MB
C33KGA, bishop's gambit, Paulsen attack450.0%50.0%0.00 MB
C33KGA, bishop's gambit, Ruy Lopez defence1442.9%50.0%0.01 MB
C33KGA, bishop's gambit, Steinitz defence1741.2%38.2%0.02 MB
C33KGA, bishop's gambit, classical defence10.0%0.0%0.00 MB
C33King's gambit accepted10.0%0.0%0.00 MB
C34KGA, Becker defence2941.4%48.3%0.02 MB
C34KGA, Bonsch-Osmolovsky variation2437.5%56.3%0.02 MB
C34KGA, Fischer defence10831.5%45.4%0.07 MB
C34KGA, Gianutio counter-gambit2100.0%50.0%0.00 MB
C34KGA, Schallop defence1729.4%73.5%0.01 MB
C34King's knight's gambit944.4%33.3%0.01 MB
C35KGA, Cunningham defence4940.8%46.9%0.03 MB
C35KGA, Cunningham, Euwe defence1631.3%59.4%0.01 MB
C36KGA, Abbazia defence (classical defence, modern defence[!])3537.1%67.1%0.02 MB
C36KGA, Abbazia defence, modern variation18639.8%44.6%0.12 MB
C37KGA, Blachly gambit2040.0%35.0%0.02 MB
C37KGA, Cochrane gambit333.3%50.0%0.00 MB
C37KGA, King's knight's gambit1369.2%65.4%0.01 MB
C37KGA, Muzio gambit944.4%33.3%0.01 MB
C37KGA, Muzio gambit, Brentano defence425.0%62.5%0.00 MB
C37KGA, Muzio gambit, From defence1100.0%50.0%0.00 MB
C37KGA, Quaade gambit633.3%16.7%0.01 MB
C37KGA, Rosentreter gambit683.3%41.7%0.01 MB
C37KGA, Salvio gambit250.0%75.0%0.00 MB
C37KGA, Salvio gambit, Anderssen counter-attack40.0%50.0%0.00 MB
C38KGA, Hanstein gambit837.5%43.8%0.01 MB
C38KGA, Philidor gambit128.3%29.2%0.01 MB
C38King's knight's gambit2339.1%28.3%0.02 MB
C39KGA, Allgaier, Thorold variation10.0%0.0%0.00 MB
C39KGA, Allgaier, Walker attack10.0%0.0%0.00 MB
C39KGA, Kieseritsky, Berlin defence5440.7%40.7%0.03 MB
C39KGA, Kieseritsky, Berlin defence, 6.Bc44030.0%35.0%0.03 MB
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%0.00 MB
C39KGA, Kieseritsky, Brentano defence10.0%100.0%0.00 MB
C39KGA, Kieseritsky, Kolisch defence7542.7%44.0%0.05 MB
C39KGA, Kieseritsky, Neumann defence1163.6%68.2%0.01 MB
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%0.01 MB
C39KGA, Kieseritsky, Rice gambit1723.5%29.4%0.01 MB
C39KGA, Kieseritsky, Salvio (Rosenthal) defence4351.2%39.5%0.03 MB
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence540.0%40.0%0.00 MB
C40Greco defence1030.0%45.0%0.01 MB
C40Gunderam defence6628.8%70.5%0.05 MB
C40King's knight opening20.0%50.0%0.00 MB
C40Latvian counter-gambit7431.1%62.8%0.05 MB
C40Latvian gambit, 3.Bc41100.0%50.0%0.00 MB
C40Latvian, Fraser defence1118.2%54.5%0.01 MB
C40Latvian, Polerio variation2227.3%40.9%0.01 MB
C40QP counter-gambit (elephant gambit)1353.8%65.4%0.01 MB
C40QP counter-gambit, Maroczy gambit366.7%66.7%0.00 MB
C41Philidor's defence19237.0%59.6%0.14 MB
C41Philidor, Hanham variation2437.5%68.8%0.02 MB
C41Philidor, Hanham, Delmar variation2100.0%50.0%0.00 MB
C41Philidor, Hanham, Krause variation1258.3%37.5%0.01 MB
C41Philidor, Hanham, Schlechter variation1723.5%76.5%0.01 MB
C41Philidor, Hanham, Steiner variation2035.0%67.5%0.02 MB
C41Philidor, Improved Hanham variation86139.1%55.9%0.56 MB
C41Philidor, Larsen variation3023.3%65.0%0.02 MB
C41Philidor, Lopez counter-gambit20.0%50.0%0.00 MB
C41Philidor, Nimzovich (Jaenisch) variation1540.0%53.3%0.01 MB
C41Philidor, Nimzovich variation3145.2%64.5%0.02 MB
C41Philidor, Nimzovich, Klein variation580.0%60.0%0.00 MB
C41Philidor, Nimzovich, Larobok variation4250.0%34.5%0.03 MB
C41Philidor, Nimzovich, Rellstab variation2846.4%69.6%0.02 MB
C41Philidor, Nimzovich, Sokolsky variation366.7%66.7%0.00 MB
C41Philidor, Nimzovich, Sozin variation742.9%50.0%0.01 MB
C41Philidor, Paulsen attack250.0%25.0%0.00 MB
C41Philidor, Philidor counter-gambit837.5%56.3%0.01 MB
C41Philidor, Philidor counter-gambit, Zukertort variation650.0%75.0%0.01 MB
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%0.00 MB
C41Philidor, Steinitz variation20.0%0.0%0.00 MB
C41Philidor, exchange variation64736.2%58.4%0.41 MB
C42Petrov three knights game22436.6%57.6%0.16 MB
C42Petrov's defence23444.4%51.7%0.16 MB
C42Petrov, Cochrane gambit5918.6%29.7%0.04 MB
C42Petrov, Cozio (Lasker) attack48249.2%52.8%0.33 MB
C42Petrov, Damiano variation2441.7%50.0%0.02 MB
C42Petrov, French attack333.3%83.3%0.00 MB
C42Petrov, Italian variation6327.0%50.0%0.04 MB
C42Petrov, Kaufmann attack17449.4%48.3%0.12 MB
C42Petrov, Nimzovich attack104845.7%54.8%0.64 MB
C42Petrov, Paulsen attack13539.3%51.5%0.10 MB
C42Petrov, classical attack69047.2%56.4%0.44 MB
C42Petrov, classical attack, Berger variation1275.0%54.2%0.01 MB
C42Petrov, classical attack, Chigorin variation54941.0%57.1%0.35 MB
C42Petrov, classical attack, Jaenisch variation160245.8%58.4%0.99 MB
C42Petrov, classical attack, Krause variation366.7%33.3%0.00 MB
C42Petrov, classical attack, Marshall variation89242.7%56.8%0.57 MB
C42Petrov, classical attack, Mason variation11343.4%58.8%0.08 MB
C42Petrov, classical attack, Tarrasch variation250.0%75.0%0.00 MB
C42Petrov, classical attack, close variation12946.5%58.9%0.09 MB
C43Petrov, Urusov gambit633.3%83.3%0.01 MB
C43Petrov, modern (Steinitz) attack3148.4%56.5%0.03 MB
C43Petrov, modern attack, Bardeleben variation425.0%62.5%0.00 MB
C43Petrov, modern attack, Steinitz variation1100.0%50.0%0.00 MB
C43Petrov, modern attack, Symmetrical variation214445.2%53.4%1.26 MB
C43Petrov, modern attack, Trifunovic variation5345.3%49.1%0.04 MB
C43Petrov, modern attack, main line19246.4%58.1%0.13 MB
C44Dresden opening20.0%0.0%0.00 MB
C44Inverted Hanham2433.3%45.8%0.02 MB
C44Inverted Hungarian2045.0%57.5%0.02 MB
C44King's pawn game7735.1%51.3%0.06 MB
C44Konstantinopolsky opening475.0%62.5%0.00 MB
C44Ponziani counter-gambit10542.9%57.6%0.07 MB
C44Ponziani counter-gambit, Cordel variation10.0%0.0%0.00 MB
C44Ponziani opening29035.9%44.1%0.18 MB
C44Ponziani, Caro variation20642.7%50.0%0.14 MB
C44Ponziani, Fraser defence4837.5%66.7%0.03 MB
C44Ponziani, Jaenisch counter-attack197646.2%52.9%1.22 MB
C44Ponziani, Leonhardt variation8736.8%46.0%0.06 MB
C44Ponziani, Reti variation633.3%50.0%0.00 MB
C44Ponziani, Romanishin variation1631.3%46.9%0.01 MB
C44Ponziani, Steinitz variation43541.4%45.5%0.27 MB
C44Scotch gambit4032.5%58.8%0.03 MB
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%0.00 MB
C44Scotch gambit, Benima defence4533.3%54.4%0.04 MB
C44Scotch gambit, Dubois-Reti defence26439.8%52.5%0.17 MB
C44Scotch gambit, Hanneken variation10.0%100.0%0.00 MB
C44Scotch opening2100.0%50.0%0.00 MB
C44Scotch, Goering gambit17645.5%56.8%0.12 MB
C44Scotch, Goering gambit, Bardeleben variation837.5%43.8%0.01 MB
C44Scotch, Lolli variation1435.7%53.6%0.01 MB
C44Scotch, Relfsson gambit ('MacLopez')666.7%66.7%0.01 MB
C45Scotch game220242.6%53.5%1.36 MB
C45Scotch, Blackburne attack1637.5%50.0%0.01 MB
C45Scotch, Blumenfeld attack1637.5%31.3%0.01 MB
C45Scotch, Ghulam Kassim variation2100.0%50.0%0.00 MB
C45Scotch, Horwitz attack2433.3%66.7%0.02 MB
C45Scotch, Meitner variation3554.3%55.7%0.03 MB
C45Scotch, Mieses variation128140.6%54.2%0.74 MB
C45Scotch, Paulsen attack10.0%100.0%0.00 MB
C45Scotch, Potter variation47840.0%51.6%0.29 MB
C45Scotch, Pulling counter-attack20.0%50.0%0.00 MB
C45Scotch, Romanishin variation5545.5%59.1%0.04 MB
C45Scotch, Schmidt variation57551.3%47.2%0.37 MB
C45Scotch, Steinitz variation4035.0%55.0%0.03 MB
C45Scotch, Tartakower variation1540.0%46.7%0.01 MB
C46Four knights game56342.8%50.4%0.37 MB
C46Four knights, Gunsberg variation7250.0%48.6%0.05 MB
C46Four knights, Italian variation15642.3%48.7%0.12 MB
C46Four knights, Schultze-Mueller gambit30.0%33.3%0.00 MB
C46Three knights game11036.4%53.6%0.07 MB
C46Three knights, Schlechter variation1225.0%37.5%0.01 MB
C46Three knights, Steinitz variation2839.3%55.4%0.02 MB
C46Three knights, Steinitz, Rosenthal variation540.0%40.0%0.00 MB
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%0.00 MB
C47Four knights, Belgrade gambit10647.2%53.8%0.07 MB
C47Four knights, Scotch variation1315.4%61.5%0.01 MB
C47Four knights, Scotch, 4...exd445449.8%54.0%0.31 MB
C47Four knights, Scotch, Krause variation3135.5%62.9%0.02 MB
C48Four knights, Bardeleben variation850.0%50.0%0.01 MB
C48Four knights, Marshall variation20.0%0.0%0.00 MB
C48Four knights, Ranken variation1442.9%64.3%0.01 MB
C48Four knights, Rubinstein counter-gambit95738.8%52.9%0.62 MB
C48Four knights, Rubinstein counter-gambit, 5.Be22100.0%50.0%0.00 MB
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1338.5%42.3%0.01 MB
C48Four knights, Rubinstein counter-gambit, Henneberger variation5738.6%50.9%0.04 MB
C48Four knights, Rubinstein counter-gambit, exchange variation13565.9%52.2%0.09 MB
C48Four knights, Spanish variation20552.2%57.8%0.15 MB
C48Four knights, Spanish, classical defence16445.1%50.6%0.12 MB
C48Four knights, Spielmann variation366.7%33.3%0.00 MB
C49Four knights6454.7%49.2%0.05 MB
C49Four knights, Gunsberg counter-attack1100.0%50.0%0.00 MB
C49Four knights, Janowski variation1540.0%60.0%0.01 MB
C49Four knights, Nimzovich (Paulsen) variation5259.6%56.7%0.04 MB
C49Four knights, Svenonius variation10.0%100.0%0.00 MB
C49Four knights, double Ruy Lopez5244.2%62.5%0.04 MB
C49Four knights, symmetrical variation17842.7%55.1%0.12 MB
C49Four knights, symmetrical, Blake variation2100.0%50.0%0.00 MB
C49Four knights, symmetrical, Capablanca variation1656.3%59.4%0.01 MB
C49Four knights, symmetrical, Maroczy system4746.8%51.1%0.03 MB
C49Four knights, symmetrical, Metger unpin31736.3%50.6%0.23 MB
C49Four knights, symmetrical, Pillsbury variation4060.0%47.5%0.03 MB
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%0.01 MB
C50Giuoco Pianissimo140938.8%53.2%0.91 MB
C50Giuoco Pianissimo, Canal variation17643.8%52.6%0.12 MB
C50Giuoco Pianissimo, Italian four knights variation35038.6%51.6%0.25 MB
C50Giuoco Piano32143.6%53.9%0.21 MB
C50Giuoco Piano, four knights variation5236.5%51.0%0.04 MB
C50Hungarian defence15040.0%49.3%0.11 MB
C50King's pawn game20936.4%59.3%0.14 MB
C50Rousseau gambit333.3%50.0%0.00 MB
C51Evans counter-gambit250.0%75.0%0.00 MB
C51Evans gambit450.0%75.0%0.00 MB
C51Evans gambit declined1816.7%58.3%0.01 MB
C51Evans gambit declined, 5.a415741.4%45.5%0.10 MB
C51Evans gambit declined, Lange variation20.0%0.0%0.00 MB
C51Evans gambit declined, Showalter variation2441.7%50.0%0.02 MB
C51Evans gambit, 5...Be73336.4%54.5%0.02 MB
C51Evans gambit, Cordel variation6651.5%45.5%0.05 MB
C51Evans gambit, Fraser attack20.0%100.0%0.00 MB
C51Evans gambit, Goering attack10.0%100.0%0.00 MB
C51Evans gambit, Morphy attack2040.0%55.0%0.02 MB
C51Evans gambit, Paulsen variation1827.8%69.4%0.01 MB
C51Evans gambit, Stone-Ware variation18634.9%50.3%0.12 MB
C51Evans gambit, normal variation1921.1%47.4%0.01 MB
C52Evans gambit25839.5%47.7%0.16 MB
C52Evans gambit, Alapin-Steinitz variation1100.0%50.0%0.00 MB
C52Evans gambit, Lasker defence616.7%25.0%0.00 MB
C52Evans gambit, Levenfish variation616.7%25.0%0.00 MB
C52Evans gambit, Richardson attack1936.8%28.9%0.02 MB
C52Evans gambit, Sanders-Alapin variation20.0%100.0%0.00 MB
C52Evans gambit, Tartakower attack6844.1%44.1%0.05 MB
C52Evans gambit, Waller attack60.0%100.0%0.00 MB
C52Evans gambit, compromised defence3823.7%69.7%0.02 MB
C52Evans gambit, compromised defence, Paulsen variation1625.0%62.5%0.01 MB
C53Giuoco Piano181938.0%52.6%1.15 MB
C53Giuoco Piano, Anderssen variation1656.3%40.6%0.01 MB
C53Giuoco Piano, Bird's attack12931.8%49.2%0.08 MB
C53Giuoco Piano, LaBourdonnais variation911.1%61.1%0.01 MB
C53Giuoco Piano, Mestel variation1100.0%50.0%0.00 MB
C53Giuoco Piano, centre-holding variation3636.1%59.7%0.03 MB
C53Giuoco Piano, close variation2030.0%75.0%0.02 MB
C54Giuoco Piano16653.6%52.7%0.11 MB
C54Giuoco Piano, Moeller (Therkatz) attack3644.4%47.2%0.03 MB
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%0.00 MB
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%0.00 MB
C55Giuoco piano20.0%50.0%0.00 MB
C55Two knights defence4337.2%48.8%0.03 MB
C55Two knights defence (Modern bishop's opening)116838.4%56.1%0.77 MB
C55Two knights defence, Perreux variation2548.0%52.0%0.02 MB
C55Two knights, Max Lange attack1631.3%59.4%0.01 MB
C55Two knights, Max Lange attack, Loman defence10.0%100.0%0.00 MB
C55Two knights, Max Lange attack, Marshall variation825.0%62.5%0.01 MB
C55Two knights, Max Lange attack, Schlechter variation1942.1%52.6%0.01 MB
C55Two knights, Max Lange attack, Steinitz variation1241.7%62.5%0.01 MB
C56Two knights defence13743.8%48.9%0.09 MB
C56Two knights defence, Canal variation540.0%40.0%0.00 MB
C57Two knights defence812.5%31.3%0.01 MB
C57Two knights defence, Fegatello attack5127.5%54.9%0.03 MB
C57Two knights defence, Fegatello attack, Leonhardt variation633.3%50.0%0.01 MB
C57Two knights defence, Fegatello attack, Polerio defence30.0%100.0%0.00 MB
C57Two knights defence, Fritz variation560.0%30.0%0.00 MB
C57Two knights defence, Fritz, Gruber variation425.0%37.5%0.00 MB
C57Two knights defence, Lolli attack1936.8%55.3%0.01 MB
C57Two knights defence, Ulvestad variation1662.5%43.8%0.01 MB
C57Two knights defence, Wilkes Barre (Traxler) variation4438.6%53.4%0.03 MB
C58Two knights defence15136.4%56.6%0.10 MB
C58Two knights defence, Blackburne variation30.0%66.7%0.00 MB
C58Two knights defence, Bogolyubov variation4932.7%49.0%0.04 MB
C58Two knights defence, Colman variation1723.5%35.3%0.01 MB
C58Two knights defence, Kieseritsky variation633.3%66.7%0.01 MB
C58Two knights defence, Paoli variation933.3%72.2%0.01 MB
C58Two knights defence, Yankovich variation1241.7%20.8%0.01 MB
C59Two knights defence18035.6%48.9%0.11 MB
C59Two knights defence, Goering variation425.0%12.5%0.00 MB
C59Two knights defence, Steinitz variation30329.0%47.2%0.18 MB
C60Ruy Lopez (Spanish opening)2725.9%64.8%0.02 MB
C60Ruy Lopez, Cozio defence22443.3%50.2%0.15 MB
C60Ruy Lopez, Cozio defence, Paulsen variation3327.3%68.2%0.03 MB
C60Ruy Lopez, Lucena defence20.0%50.0%0.00 MB
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence22640.7%53.1%0.15 MB
C61Ruy Lopez, Bird's defence13735.8%59.5%0.09 MB
C61Ruy Lopez, Bird's defence, Paulsen variation333.3%50.0%0.00 MB
C62Ruy Lopez, old Steinitz defence23636.9%55.3%0.17 MB
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%0.01 MB
C63Ruy Lopez, Schliemann defence26442.8%57.4%0.18 MB
C63Ruy Lopez, Schliemann defence, Berger variation33141.4%56.9%0.21 MB
C64Ruy Lopez, Cordel gambit5639.3%58.9%0.04 MB
C64Ruy Lopez, classical (Cordel) defence18241.8%51.6%0.13 MB
C64Ruy Lopez, classical defence, 4.c322240.5%56.3%0.15 MB
C64Ruy Lopez, classical defence, Benelux variation 36838.3%56.1%0.23 MB
C64Ruy Lopez, classical defence, Charousek variation333.3%83.3%0.01 MB
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%0.00 MB
C65Ruy Lopez, Berlin defence244039.4%50.9%1.57 MB
C65Ruy Lopez, Berlin defence, 4.O-O15141.7%59.3%0.11 MB
C65Ruy Lopez, Berlin defence, Beverwijk variation45135.7%57.5%0.30 MB
C65Ruy Lopez, Berlin defence, Duras variation1338.5%50.0%0.01 MB
C65Ruy Lopez, Berlin defence, Kaufmann variation2642.3%55.8%0.02 MB
C65Ruy Lopez, Berlin defence, Mortimer variation1464.3%32.1%0.01 MB
C65Ruy Lopez, Berlin defence, Nyholm attack5952.5%55.1%0.05 MB
C66Ruy Lopez, Berlin defence, 4.O-O, d68151.9%53.1%0.06 MB
C66Ruy Lopez, Berlin defence, hedgehog variation9952.5%57.6%0.07 MB
C66Ruy Lopez, closed Berlin defence, Bernstein variation1435.7%53.6%0.01 MB
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%0.01 MB
C66Ruy Lopez, closed Berlin defence, Showalter variation5349.1%56.6%0.04 MB
C66Ruy Lopez, closed Berlin defence, Wolf variation5657.1%57.1%0.04 MB
C67Ruy Lopez, Berlin defence, Cordel variation5137.3%59.8%0.04 MB
C67Ruy Lopez, Berlin defence, Minckwitz variation3548.6%61.4%0.03 MB
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%0.00 MB
C67Ruy Lopez, Berlin defence, Rosenthal variation2245.5%63.6%0.02 MB
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%0.00 MB
C67Ruy Lopez, Berlin defence, Winawer attack2832.1%69.6%0.02 MB
C67Ruy Lopez, Berlin defence, Zukertort variation1250.0%58.3%0.01 MB
C67Ruy Lopez, Berlin defence, open variation331946.6%54.3%2.00 MB
C67Ruy Lopez, open Berlin defence, 5...Be76633.3%53.0%0.05 MB
C67Ruy Lopez, open Berlin defence, Showalter variation1428.6%42.9%0.01 MB
C67Ruy Lopez, open Berlin defence, l'Hermet variation7556.0%49.3%0.05 MB
C68Ruy Lopez, exchange variation7342.5%51.4%0.05 MB
C68Ruy Lopez, exchange, Alekhine variation1442.9%42.9%0.01 MB
C68Ruy Lopez, exchange, Keres variation7656.6%50.7%0.06 MB
C68Ruy Lopez, exchange, Romanovsky variation1233.3%50.0%0.01 MB
C69Ruy Lopez, exchange variation, 5.O-O59142.0%53.0%0.38 MB
C69Ruy Lopez, exchange variation, Alapin gambit26140.6%50.2%0.16 MB
C69Ruy Lopez, exchange, Bronstein variation43932.1%50.0%0.29 MB
C69Ruy Lopez, exchange, Gligoric variation61140.8%56.4%0.39 MB
C70Ruy Lopez3345.5%50.0%0.03 MB
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%0.01 MB
C70Ruy Lopez, Caro variation7940.5%58.2%0.06 MB
C70Ruy Lopez, Classical defence deferred8144.4%61.7%0.07 MB
C70Ruy Lopez, Cozio defence deferred24045.4%52.7%0.16 MB
C70Ruy Lopez, Graz variation6100.0%50.0%0.00 MB
C70Ruy Lopez, Schliemann defence deferred1926.3%71.1%0.01 MB
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation12337.4%64.2%0.09 MB
C70Ruy Lopez, fianchetto defence deferred1668.8%53.1%0.01 MB
C71Ruy Lopez, modern Steinitz defence10541.9%55.2%0.08 MB
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation10242.2%55.4%0.08 MB
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%0.01 MB
C72Ruy Lopez, modern Steinitz defence, 5.O-O34843.7%59.2%0.24 MB
C73Ruy Lopez, modern Steinitz defence, Alapin variation5735.1%54.4%0.04 MB
C73Ruy Lopez, modern Steinitz defence, Richter variation13152.7%53.1%0.09 MB
C74Ruy Lopez, Siesta, Kopayev variation10730.8%53.7%0.07 MB
C74Ruy Lopez, modern Steinitz defence5038.0%57.0%0.04 MB
C74Ruy Lopez, modern Steinitz defence, siesta variation1844.4%44.4%0.01 MB
C75Ruy Lopez, modern Steinitz defence13842.0%55.1%0.10 MB
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation6334.9%57.1%0.05 MB
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation29135.4%51.4%0.20 MB
C77Ruy Lopez, Anderssen variation68141.3%51.3%0.46 MB
C77Ruy Lopez, Morphy defence18838.3%56.9%0.14 MB
C77Ruy Lopez, Morphy defence, Duras variation3644.4%55.6%0.03 MB
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)6041.7%45.8%0.05 MB
C77Ruy Lopez, Wormald (Alapin) attack29542.0%53.9%0.21 MB
C77Ruy Lopez, Wormald attack, Gruenfeld variation2100.0%50.0%0.00 MB
C77Ruy Lopez, four knights (Tarrasch) variation14745.6%56.1%0.11 MB
C78Ruy Lopez, ...b5 & ...d64233.3%52.4%0.03 MB
C78Ruy Lopez, 5.O-O103746.5%54.4%0.65 MB
C78Ruy Lopez, Archangelsk (counterthrust) variation145742.1%55.2%0.95 MB
C78Ruy Lopez, Moeller defence53042.5%53.3%0.34 MB
C78Ruy Lopez, Wing attack40.0%50.0%0.01 MB
C79Ruy Lopez, Steinitz defence deferred (Russian defence)21338.5%54.5%0.16 MB
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1172.7%54.5%0.01 MB
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1241.7%54.2%0.01 MB
C80Ruy Lopez, open (Tarrasch) defence5745.6%59.6%0.04 MB
C80Ruy Lopez, open, 6.d44537.8%45.6%0.03 MB
C80Ruy Lopez, open, 7.Bb348340.8%52.9%0.28 MB
C80Ruy Lopez, open, 8...Be6120238.1%43.1%0.70 MB
C80Ruy Lopez, open, Berger variation366.7%33.3%0.00 MB
C80Ruy Lopez, open, Bernstein variation80246.9%62.7%0.49 MB
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2245.5%45.5%0.02 MB
C80Ruy Lopez, open, Friess attack1020.0%60.0%0.01 MB
C80Ruy Lopez, open, Harksen gambit10.0%100.0%0.00 MB
C80Ruy Lopez, open, Riga variation1050.0%65.0%0.01 MB
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%0.01 MB
C80Ruy Lopez, open, Tartakower variation30.0%33.3%0.00 MB
C80Ruy Lopez, open, Zukertort variation333.3%50.0%0.00 MB
C81Ruy Lopez, open, Howell attack12951.9%50.0%0.09 MB
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%0.00 MB
C81Ruy Lopez, open, Howell attack, Ekstroem variation633.3%50.0%0.00 MB
C82Ruy Lopez, open, 9.c350.0%80.0%0.01 MB
C82Ruy Lopez, open, Berlin variation1637.5%68.8%0.01 MB
C82Ruy Lopez, open, Dilworth variation15641.0%60.9%0.11 MB
C82Ruy Lopez, open, Italian variation8448.8%66.1%0.05 MB
C82Ruy Lopez, open, Motzko attack5543.6%58.2%0.04 MB
C82Ruy Lopez, open, Motzko attack, Nenarokov variation650.0%75.0%0.01 MB
C82Ruy Lopez, open, St. Petersburg variation18239.6%66.5%0.12 MB
C83Ruy Lopez, open, 9...Be7, 10.Re14334.9%54.7%0.03 MB
C83Ruy Lopez, open, Breslau variation250.0%75.0%0.00 MB
C83Ruy Lopez, open, Malkin variation666.7%66.7%0.00 MB
C83Ruy Lopez, open, classical defence15747.8%60.2%0.11 MB
C84Ruy Lopez, closed defence119540.5%51.4%0.77 MB
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%0.00 MB
C84Ruy Lopez, closed, centre attack16748.5%46.4%0.11 MB
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)105739.3%48.3%0.69 MB
C86Ruy Lopez, Worrall attack2454.2%56.3%0.02 MB
C86Ruy Lopez, Worrall attack, sharp line20438.7%54.7%0.14 MB
C86Ruy Lopez, Worrall attack, solid line6030.0%46.7%0.05 MB
C87Ruy Lopez, closed, Averbach variation24141.5%59.3%0.17 MB
C88Ruy Lopez, Trajkovic counter-attack61340.6%52.1%0.40 MB
C88Ruy Lopez, closed119641.3%52.6%0.82 MB
C88Ruy Lopez, closed, 7...O-O269840.4%52.4%1.76 MB
C88Ruy Lopez, closed, 7...d6, 8.d41833.3%16.7%0.01 MB
C88Ruy Lopez, closed, 8.c32737.0%63.0%0.02 MB
C88Ruy Lopez, closed, Balla variation3941.0%48.7%0.03 MB
C88Ruy Lopez, closed, anti-Marshall 8.a4143639.7%53.9%0.94 MB
C89Ruy Lopez, Marshall counter-attack48453.7%54.8%0.30 MB
C89Ruy Lopez, Marshall counter-attack, 11...c616346.6%54.6%0.11 MB
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%0.00 MB
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%0.00 MB
C89Ruy Lopez, Marshall, main line, 12.d2d420642.2%62.9%0.14 MB
C89Ruy Lopez, Marshall, main line, 14...Qh340751.4%51.2%0.27 MB
C90Ruy Lopez, closed (with ...d6)116636.4%51.6%0.79 MB
C90Ruy Lopez, closed, Lutikov variation3748.6%56.8%0.03 MB
C90Ruy Lopez, closed, Pilnik variation79735.5%51.9%0.55 MB
C90Ruy Lopez, closed, Suetin variation6536.9%56.9%0.05 MB
C91Ruy Lopez, closed, 9.d4116338.3%58.1%0.81 MB
C91Ruy Lopez, closed, Bogolyubov variation368542.8%53.9%2.39 MB
C92Ruy Lopez, closed, 9.h337642.0%52.4%0.26 MB
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)182838.5%56.5%1.16 MB
C92Ruy Lopez, closed, Keres (9...a5) variation1450.0%46.4%0.01 MB
C92Ruy Lopez, closed, Kholmov variation11930.3%66.4%0.07 MB
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation27042.2%64.4%0.18 MB
C93Ruy Lopez, closed, Smyslov defence14939.6%58.1%0.10 MB
C94Ruy Lopez, closed, Breyer defence4032.5%56.3%0.03 MB
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%0.00 MB
C95Ruy Lopez, closed, Breyer, Borisenko variation69739.6%56.4%0.47 MB
C95Ruy Lopez, closed, Breyer, Gligoric variation4845.8%54.2%0.04 MB
C95Ruy Lopez, closed, Breyer, Simagin variation2035.0%57.5%0.01 MB
C96Ruy Lopez, closed (10...c5)60132.6%64.1%0.41 MB
C96Ruy Lopez, closed (8...Na5)1952.6%63.2%0.02 MB
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%0.03 MB
C96Ruy Lopez, closed, Keres (...Nd7) defence19536.9%65.1%0.13 MB
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%0.00 MB
C97Ruy Lopez, closed, Chigorin defence71631.3%62.7%0.48 MB
C98Ruy Lopez, closed, Chigorin, 12...Nc613631.6%61.4%0.10 MB
C99Ruy Lopez, closed, Chigorin, 12...c5d490240.4%62.7%0.56 MB
D00Blackmar gambit19840.9%40.7%0.12 MB
D00Blackmar-Diemer gambit3020.0%40.0%0.02 MB
D00Blackmar-Diemer, Euwe defence2623.1%42.3%0.02 MB
D00Levitsky attack (Queen's bishop attack)167236.7%52.2%1.08 MB
D00Queen's pawn game43839.3%49.1%0.30 MB
D00Queen's pawn, Anti-Veresov366.7%33.3%0.00 MB
D00Queen's pawn, Chigorin variation28635.0%52.1%0.21 MB
D00Queen's pawn, Mason variation72740.6%50.7%0.47 MB
D00Queen's pawn, Mason variation, Steinitz counter-gambit35237.5%49.4%0.23 MB
D00Queen's pawn, stonewall attack5736.8%43.0%0.05 MB
D01Richter-Veresov attack39136.6%46.2%0.27 MB
D01Richter-Veresov attack, Richter variation1723.5%52.9%0.01 MB
D01Richter-Veresov attack, Veresov variation2045.0%47.5%0.02 MB
D02Queen's bishop game110039.5%53.1%0.74 MB
D02Queen's pawn game450341.2%52.6%2.88 MB
D02Queen's pawn game, Chigorin variation36340.5%58.3%0.26 MB
D02Queen's pawn game, Krause variation33644.6%54.8%0.23 MB
D03Torre attack (Tartakower variation)62239.5%50.6%0.42 MB
D04Queen's pawn game65341.3%50.2%0.45 MB
D05Colle system15748.4%54.8%0.11 MB
D05Queen's pawn game50337.0%52.1%0.33 MB
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation21839.4%53.2%0.15 MB
D05Queen's pawn game, Zukertort variation1861.1%52.8%0.02 MB
D06QGD, Grau (Sahovic) defence9136.3%63.2%0.06 MB
D06QGD, Marshall defence10641.5%59.4%0.08 MB
D06QGD, symmetrical (Austrian) defence3250.0%56.3%0.02 MB
D07QGD, Chigorin defence65635.7%57.3%0.41 MB
D07QGD, Chigorin defence, Janowski variation7532.0%64.0%0.06 MB
D08QGD, Albin counter-gambit7038.6%63.6%0.05 MB
D08QGD, Albin counter-gambit, Alapin variation666.7%50.0%0.01 MB
D08QGD, Albin counter-gambit, Balogh variation425.0%87.5%0.00 MB
D08QGD, Albin counter-gambit, Janowski variation425.0%62.5%0.00 MB
D08QGD, Albin counter-gambit, Lasker trap10.0%100.0%0.00 MB
D09QGD, Albin counter-gambit, 5.g36639.4%62.1%0.05 MB
D10QGD Slav defence347541.0%53.8%2.20 MB
D10QGD Slav defence, Alekhine variation23141.1%55.2%0.14 MB
D10QGD Slav defence, exchange variation135944.3%55.4%0.88 MB
D10QGD Slav, Winawer counter-gambit12232.8%52.5%0.08 MB
D11QGD Slav, 3.Nf3193940.0%55.8%1.23 MB
D11QGD Slav, 4.e3356542.4%55.4%2.21 MB
D11QGD Slav, Breyer variation9939.4%58.1%0.08 MB
D12QGD Slav, 4.e3 Bf5275440.1%54.1%1.76 MB
D12QGD Slav, Amsterdam variation2152.4%45.2%0.02 MB
D12QGD Slav, exchange variation8737.9%48.9%0.07 MB
D13QGD Slav, exchange variation65445.9%55.5%0.42 MB
D14QGD Slav, exchange variation, 6.Bf4 Bf564949.3%51.5%0.39 MB
D14QGD Slav, exchange, Trifunovic variation19848.0%52.8%0.13 MB
D15QGD Slav accepted7441.9%49.3%0.05 MB
D15QGD Slav, 4.Nc3341839.7%54.6%2.10 MB
D15QGD Slav, 5.e3 (Alekhine variation)14430.6%54.9%0.10 MB
D15QGD Slav, Schlechter variation26342.6%58.9%0.19 MB
D15QGD Slav, Slav gambit1625.0%56.3%0.01 MB
D15QGD Slav, Suechting variation12432.3%58.1%0.09 MB
D15QGD Slav, Tolush-Geller gambit11828.8%40.7%0.07 MB
D16QGD Slav accepted, Alapin variation15139.1%65.9%0.10 MB
D16QGD Slav, Smyslov variation5834.5%62.1%0.04 MB
D16QGD Slav, Soultanbeieff variation36149.6%53.3%0.24 MB
D16QGD Slav, Steiner variation20137.3%64.4%0.13 MB
D17QGD Slav, Carlsbad variation46537.4%60.2%0.28 MB
D17QGD Slav, Czech defence34248.0%54.4%0.22 MB
D17QGD Slav, Krause attack63339.2%58.0%0.41 MB
D17QGD Slav, Wiesbaden variation58942.3%57.3%0.34 MB
D18QGD Slav, Dutch variation24139.4%60.0%0.16 MB
D18QGD Slav, Dutch, Lasker variation425.0%87.5%0.00 MB
D19QGD Slav, Dutch variation125238.7%57.6%0.79 MB
D19QGD Slav, Dutch variation, main line18440.8%57.9%0.12 MB
D19QGD Slav, Dutch, Saemisch variation250.0%25.0%0.00 MB
D20QGA, 3.e4255040.0%56.8%1.51 MB
D20QGA, Linares variation7835.9%60.3%0.05 MB
D20Queen's gambit accepted84346.0%55.8%0.55 MB
D21QGA, 3.Nf321938.8%57.8%0.15 MB
D21QGA, Alekhine defense, Borisenko-Furman variation2128.6%52.4%0.01 MB
D21QGA, Ericson variation40.0%25.0%0.00 MB
D22QGA, Alekhine defence19239.6%56.8%0.13 MB
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%0.01 MB
D22QGA, Haberditz variation9857.1%52.0%0.06 MB
D23QGA, Mannheim variation27945.9%52.3%0.19 MB
D23Queen's gambit accepted3339.4%50.0%0.03 MB
D24QGA, 4.Nc318440.8%50.8%0.12 MB
D24QGA, Bogolyubov variation14949.0%56.7%0.10 MB
D25QGA, 4.e38736.8%54.0%0.06 MB
D25QGA, Flohr variation6129.5%65.6%0.04 MB
D25QGA, Janowsky-Larsen variation32538.8%57.5%0.22 MB
D25QGA, Smyslov variation8752.9%58.6%0.06 MB
D26QGA, 4...e624146.1%55.0%0.17 MB
D26QGA, classical variation61151.6%52.5%0.41 MB
D26QGA, classical variation, 6.O-O13946.0%56.8%0.10 MB
D26QGA, classical, Furman variation10.0%0.0%0.00 MB
D26QGA, classical, Steinitz variation3246.9%64.1%0.02 MB
D27QGA, classical, 6...a6363450.3%55.2%2.30 MB
D27QGA, classical, Geller variation7255.6%52.8%0.05 MB
D27QGA, classical, Rubinstein variation139947.3%55.7%0.91 MB
D28QGA, classical, 7...b518851.1%56.9%0.14 MB
D28QGA, classical, 7.Qe26251.6%61.3%0.05 MB
D29QGA, classical, 8...Bb730041.0%47.8%0.19 MB
D29QGA, classical, Smyslov variation4055.0%45.0%0.03 MB
D30QGD71347.8%51.8%0.44 MB
D30QGD Slav26346.0%54.9%0.19 MB
D30QGD Slav, Semmering variation2231.8%47.7%0.02 MB
D30QGD, Capablanca variation3036.7%55.0%0.02 MB
D30QGD, Capablanca-Duras variation30645.4%54.7%0.21 MB
D30QGD, Hastings variation46346.9%52.6%0.30 MB
D30QGD, Vienna variation50454.0%52.6%0.32 MB
D30Queen's gambit declined539445.0%55.8%3.45 MB
D31QGD, 3.Nc368541.3%55.0%0.45 MB
D31QGD, Alapin variation742.9%64.3%0.01 MB
D31QGD, Charousek (Petrosian) variation127845.3%52.8%0.81 MB
D31QGD, Janowski variation10545.7%50.5%0.07 MB
D31QGD, semi-Slav82238.6%54.4%0.53 MB
D31QGD, semi-Slav, Abrahams variation12535.2%44.0%0.08 MB
D31QGD, semi-Slav, Junge variation1030.0%35.0%0.01 MB
D31QGD, semi-Slav, Koomen variation955.6%38.9%0.01 MB
D31QGD, semi-Slav, Marshall gambit61243.1%53.4%0.37 MB
D31QGD, semi-Slav, Noteboom variation22939.3%52.4%0.14 MB
D32QGD, Tarrasch defence28246.8%54.3%0.20 MB
D32QGD, Tarrasch defence, 4.cd ed1533.3%56.7%0.01 MB
D32QGD, Tarrasch defence, Marshall gambit633.3%50.0%0.01 MB
D32QGD, Tarrasch defence, Tarrasch gambit540.0%20.0%0.00 MB
D32QGD, Tarrasch, von Hennig-Schara gambit5141.2%61.8%0.04 MB
D33QGD, Tarrasch, Folkestone (Swedish) variation4254.8%58.3%0.03 MB
D33QGD, Tarrasch, Prague variation6131.1%53.3%0.05 MB
D33QGD, Tarrasch, Schlechter-Rubinstein system1338.5%50.0%0.01 MB
D33QGD, Tarrasch, Wagner variation922.2%66.7%0.01 MB
D34QGD, Tarrasch, Prague variation, 7...Be716643.4%55.4%0.12 MB
D34QGD, Tarrasch, Prague variation, 9.Bg552547.0%57.6%0.34 MB
D34QGD, Tarrasch, Prague variation, Normal position63447.5%56.2%0.42 MB
D34QGD, Tarrasch, Reti variation2263.6%59.1%0.02 MB
D35QGD, 3...Nf67842.3%49.4%0.06 MB
D35QGD, Harrwitz attack18451.6%55.7%0.13 MB
D35QGD, exchange variation34643.1%56.5%0.24 MB
D35QGD, exchange, Saemisch variation26647.0%54.3%0.18 MB
D35QGD, exchange, positional line86840.7%54.0%0.57 MB
D35QGD, exchange, positional line, 5...c670541.3%54.7%0.47 MB
D36QGD, exchange, positional line, 6.Qc220742.0%54.8%0.15 MB
D37QGD, 4.Nf3494746.6%52.8%2.97 MB
D37QGD, classical variation (5.Bf4)380244.7%55.2%2.35 MB
D38QGD, Ragozin variation344645.9%52.7%2.11 MB
D39QGD, Ragozin, Vienna variation148350.9%51.1%0.85 MB
D40QGD, Semi-Tarrasch defence41342.1%55.0%0.29 MB
D40QGD, Semi-Tarrasch defence, Pillsbury variation2236.4%54.5%0.02 MB
D40QGD, Semi-Tarrasch, symmetrical variation757.1%57.1%0.01 MB
D41QGD, Semi-Tarrasch with e312647.6%52.4%0.09 MB
D41QGD, Semi-Tarrasch, 5.cd58047.6%58.1%0.36 MB
D41QGD, Semi-Tarrasch, Kmoch variation875.0%50.0%0.01 MB
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%0.02 MB
D42QGD, Semi-Tarrasch, 7.Bd324442.6%56.6%0.17 MB
D43QGD semi-Slav612041.4%52.9%3.63 MB
D43QGD semi-Slav, Hastings variation520.0%90.0%0.01 MB
D44QGD semi-Slav, 5.Bg5 dc13641.9%49.6%0.10 MB
D44QGD semi-Slav, Botvinnik system (anti-Meran)6637.9%52.3%0.04 MB
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%0.02 MB
D44QGD semi-Slav, anti-Meran gambit74635.1%58.3%0.39 MB
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%0.00 MB
D44QGD semi-Slav, anti-Meran, Lilienthal variation15731.2%66.6%0.08 MB
D44QGD semi-Slav, anti-Meran, Szabo variation2420.8%35.4%0.02 MB
D45QGD semi-Slav, 5...Nd751138.6%54.1%0.34 MB
D45QGD semi-Slav, 5.e339240.6%56.8%0.25 MB
D45QGD semi-Slav, Rubinstein (anti-Meran) system1533.3%43.3%0.01 MB
D45QGD semi-Slav, Stoltz variation1113843.6%53.4%6.76 MB
D45QGD semi-Slav, accelerated Meran (Alekhine variation)173743.9%53.9%1.09 MB
D45QGD semi-Slav, stonewall defence1154.5%54.5%0.01 MB
D46QGD semi-Slav, 6.Bd33540.0%62.9%0.03 MB
D46QGD semi-Slav, Bogolyubov variation15843.0%57.0%0.12 MB
D46QGD semi-Slav, Chigorin defence41644.5%54.0%0.29 MB
D46QGD semi-Slav, Romih variation16737.1%64.1%0.11 MB
D47QGD semi-Slav, 7.Bc45536.4%52.7%0.04 MB
D47QGD semi-Slav, Meran variation120049.5%54.9%0.79 MB
D47QGD semi-Slav, Meran, Wade variation678539.4%53.5%4.02 MB
D47QGD semi-Slav, neo-Meran (Lundin variation)27448.2%54.7%0.19 MB
D48QGD semi-Slav, Meran205.0%37.5%0.01 MB
D48QGD semi-Slav, Meran, 8...a6135949.8%48.8%0.85 MB
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%0.01 MB
D48QGD semi-Slav, Meran, Reynolds' variation72840.2%56.3%0.43 MB
D48QGD semi-Slav, Meran, old main line11135.1%52.7%0.07 MB
D49QGD semi-Slav, Meran, Blumenfeld variation15945.3%50.9%0.10 MB
D49QGD semi-Slav, Meran, Rabinovich variation5825.9%45.7%0.04 MB
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%0.01 MB
D49QGD semi-Slav, Meran, Sozin variation15344.4%45.8%0.08 MB
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%0.05 MB
D50QGD, 4.Bg56543.1%53.8%0.05 MB
D50QGD, Been-Koomen variation540.0%20.0%0.01 MB
D50QGD, Canal (Venice) variation20.0%50.0%0.00 MB
D50QGD, Semi-Tarrasch1030.0%45.0%0.01 MB
D50QGD, Semi-Tarrasch, Krause variation1100.0%50.0%0.00 MB
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1241.7%54.2%0.01 MB
D51QGD933.3%72.2%0.01 MB
D51QGD, 4.Bg5 Nbd76540.0%53.8%0.05 MB
D51QGD, 5...c65950.8%52.5%0.04 MB
D51QGD, Alekhine variation40.0%50.0%0.00 MB
D51QGD, Capablanca anti-Cambridge Springs variation862.5%68.8%0.01 MB
D51QGD, Manhattan variation633.3%66.7%0.00 MB
D52QGD12540.0%58.4%0.09 MB
D52QGD, Cambridge Springs defence3243.8%40.6%0.02 MB
D52QGD, Cambridge Springs defence, 7.cd3633.3%50.0%0.03 MB
D52QGD, Cambridge Springs defence, Argentine variation1931.6%42.1%0.02 MB
D52QGD, Cambridge Springs defence, Bogoljubow variation38346.5%56.1%0.27 MB
D52QGD, Cambridge Springs defence, Capablanca variation3636.1%59.7%0.03 MB
D52QGD, Cambridge Springs defence, Rubinstein variation14939.6%54.7%0.11 MB
D52QGD, Cambridge Springs defence, Yugoslav variation34439.0%57.8%0.22 MB
D53QGD, 4.Bg5 Be790045.2%54.4%0.58 MB
D53QGD, 4.Bg5 Be7, 5.e3 O-O3348.5%51.5%0.02 MB
D53QGD, Lasker variation425.0%87.5%0.00 MB
D54QGD, Anti-neo-orthodox variation2842.9%42.9%0.02 MB
D55QGD, 6.Nf311632.8%57.8%0.08 MB
D55QGD, Neo-orthodox variation633.3%50.0%0.00 MB
D55QGD, Neo-orthodox variation, 7.Bh412143.8%56.6%0.09 MB
D55QGD, Neo-orthodox variation, 7.Bxf630344.6%52.0%0.20 MB
D55QGD, Petrosian variation35152.1%53.4%0.22 MB
D56QGD, Lasker defence29043.8%53.6%0.19 MB
D56QGD, Lasker defence, Teichmann variation8851.1%49.4%0.06 MB
D57QGD, Lasker defence, Bernstein variation450.0%50.0%0.00 MB
D57QGD, Lasker defence, main line4555.6%52.2%0.03 MB
D58QGD, Tartakower (Makagonov-Bondarevsky) system484446.3%52.0%3.09 MB
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd517948.6%46.6%0.12 MB
D59QGD, Tartakower variation10743.9%46.3%0.08 MB
D60QGD, Orthodox defence8130.9%56.2%0.06 MB
D60QGD, Orthodox defence, Botvinnik variation6532.3%50.0%0.05 MB
D60QGD, Orthodox defence, Rauzer variation2638.5%65.4%0.02 MB
D61QGD, Orthodox defence, Rubinstein variation20744.4%50.7%0.15 MB
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)12949.6%55.8%0.09 MB
D63QGD, Orthodox defence6645.5%56.1%0.05 MB
D63QGD, Orthodox defence, 7.Rc120735.7%58.0%0.14 MB
D63QGD, Orthodox defence, Capablanca variation1100.0%50.0%0.00 MB
D63QGD, Orthodox defence, Pillsbury attack1330.8%76.9%0.01 MB
D63QGD, Orthodox defence, Swiss (Henneberger) variation8543.5%62.9%0.06 MB
D63QGD, Orthodox defence, Swiss, Karlsbad variation15142.4%52.3%0.11 MB
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)9545.3%56.3%0.07 MB
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation1421.4%46.4%0.01 MB
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation1844.4%33.3%0.02 MB
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%0.01 MB
D65QGD, Orthodox defence, Rubinstein attack, main line1154.5%72.7%0.01 MB
D66QGD, Orthodox defence, Bd3 line22245.9%59.5%0.16 MB
D66QGD, Orthodox defence, Bd3 line, fianchetto variation742.9%78.6%0.01 MB
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%0.02 MB
D67QGD, Orthodox defence, Bd3 line, 11.O-O4533.3%65.6%0.03 MB
D67QGD, Orthodox defence, Bd3 line, Alekhine variation3354.5%54.5%0.02 MB
D68QGD, Orthodox defence, classical variation6147.5%56.6%0.04 MB
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%0.00 MB
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)4254.8%58.3%0.03 MB
D69QGD, Orthodox defence, classical, 13.de1553.3%53.3%0.01 MB
D70Neo-Gruenfeld (Kemeri) defence2835.7%53.6%0.02 MB
D70Neo-Gruenfeld defence17638.1%56.5%0.11 MB
D71Neo-Gruenfeld, 5.cd26745.7%56.2%0.18 MB
D72Neo-Gruenfeld, 5.cd, main line16333.1%60.1%0.11 MB
D73Neo-Gruenfeld, 5.Nf372551.0%55.4%0.47 MB
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O19544.6%55.6%0.13 MB
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc37545.3%60.0%0.05 MB
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc1526.7%73.3%0.01 MB
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb649744.3%57.1%0.33 MB
D77Neo-Gruenfeld, 6.O-O64246.6%54.4%0.43 MB
D78Neo-Gruenfeld, 6.O-O c671642.0%54.5%0.47 MB
D79Neo-Gruenfeld, 6.O-O, main line44648.4%54.3%0.31 MB
D80Gruenfeld defence61846.8%54.8%0.36 MB
D80Gruenfeld, Lundin variation10.0%0.0%0.00 MB
D80Gruenfeld, Stockholm variation64542.9%54.2%0.40 MB
D81Gruenfeld, Russian variation27941.2%62.5%0.18 MB
D82Gruenfeld, 4.Bf449745.1%53.7%0.32 MB
D83Gruenfeld, Gruenfeld gambit1729.4%67.6%0.02 MB
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1573.3%63.3%0.01 MB
D83Gruenfeld, Gruenfeld gambit, Capablanca variation17646.6%55.7%0.12 MB
D84Gruenfeld, Gruenfeld gambit accepted4348.8%54.7%0.03 MB
D85Gruenfeld, exchange variation236947.4%56.3%1.41 MB
D85Gruenfeld, modern exchange variation295746.2%55.9%1.69 MB
D86Gruenfeld, exchange, Larsen variation30.0%66.7%0.00 MB
D86Gruenfeld, exchange, Simagin's improved variation8737.9%52.3%0.07 MB
D86Gruenfeld, exchange, Simagin's lesser variation2626.9%55.8%0.02 MB
D86Gruenfeld, exchange, classical variation95045.9%55.1%0.59 MB
D87Gruenfeld, exchange, Seville variation7553.3%62.7%0.05 MB
D87Gruenfeld, exchange, Spassky variation45741.8%54.4%0.30 MB
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd18941.8%61.1%0.13 MB
D89Gruenfeld, Spassky variation, main line, 13.Bd37038.6%49.3%0.04 MB
D89Gruenfeld, exchange, Sokolsky variation850.0%37.5%0.01 MB
D90Gruenfeld, Flohr variation21535.3%55.3%0.14 MB
D90Gruenfeld, Schlechter variation1833.3%38.9%0.02 MB
D90Gruenfeld, Three knights variation43546.9%54.7%0.27 MB
D91Gruenfeld, 5.Bg583139.0%48.0%0.56 MB
D92Gruenfeld, 5.Bf464744.8%57.2%0.41 MB
D93Gruenfeld with Bf4 e324350.2%52.7%0.17 MB
D94Gruenfeld with e3 Bd31650.0%56.3%0.01 MB
D94Gruenfeld, 5.e338545.2%57.7%0.26 MB
D94Gruenfeld, Flohr defence1850.0%58.3%0.02 MB
D94Gruenfeld, Makogonov variation7548.0%46.7%0.05 MB
D94Gruenfeld, Opovcensky variation13040.8%54.2%0.09 MB
D94Gruenfeld, Smyslov defence14746.3%56.5%0.10 MB
D95Gruenfeld with e3 & Qb31457.1%64.3%0.01 MB
D95Gruenfeld, Botvinnik variation6442.2%50.8%0.05 MB
D96Gruenfeld, Russian variation19438.1%55.7%0.14 MB
D97Gruenfeld, Russian variation with e42334.8%65.2%0.02 MB
D97Gruenfeld, Russian, Alekhine (Hungarian) variation150044.3%51.0%0.93 MB
D97Gruenfeld, Russian, Byrne (Simagin) variation11437.7%59.2%0.08 MB
D97Gruenfeld, Russian, Levenfish variation742.9%64.3%0.01 MB
D97Gruenfeld, Russian, Prins variation42742.6%57.8%0.28 MB
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation17242.4%57.8%0.11 MB
D98Gruenfeld, Russian, Keres variation1136.4%54.5%0.01 MB
D98Gruenfeld, Russian, Smyslov variation22941.5%60.5%0.15 MB
D99Gruenfeld defence, Smyslov, Yugoslav variation1127.3%50.0%0.01 MB
D99Gruenfeld defence, Smyslov, main line15839.2%58.9%0.11 MB
E00Catalan opening285242.5%55.0%1.78 MB
E00Neo-Indian (Seirawan) attack15931.4%52.8%0.12 MB
E00Queen's pawn game36841.6%56.1%0.27 MB
E01Catalan, closed41048.0%51.6%0.28 MB
E02Catalan, open, 5.Qa413246.2%58.7%0.10 MB
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc46852.9%39.7%0.05 MB
E03Catalan, open, Alekhine variation1421.4%39.3%0.01 MB
E04Catalan, open, 5.Nf3387143.4%53.2%2.32 MB
E05Catalan, open, classical line8549.4%56.5%0.06 MB
E06Catalan, closed, 5.Nf3273848.6%53.7%1.73 MB
E07Catalan, closed, 6...Nbd75538.2%50.0%0.04 MB
E07Catalan, closed, Botvinnik variation6243.5%42.7%0.05 MB
E08Catalan, closed, 7.Qc27737.7%60.4%0.06 MB
E08Catalan, closed, Qc2 & b317640.9%51.1%0.12 MB
E08Catalan, closed, Spassky gambit520.0%50.0%0.00 MB
E09Catalan, closed, main line20134.3%60.4%0.14 MB
E10Blumenfeld counter-gambit28542.8%54.7%0.18 MB
E10Blumenfeld counter-gambit accepted11140.5%55.4%0.07 MB
E10Blumenfeld counter-gambit, Dus-Chotimursky variation14634.2%57.5%0.10 MB
E10Blumenfeld counter-gambit, Spielmann variation6137.7%58.2%0.04 MB
E10Doery defence2142.9%54.8%0.02 MB
E10Dzindzikhashvili defence5349.1%60.4%0.04 MB
E10Queen's pawn game370945.5%55.8%2.34 MB
E11Bogo-Indian defence130138.9%55.0%0.83 MB
E11Bogo-Indian defence, Gruenfeld variation174239.9%56.0%1.12 MB
E11Bogo-Indian defence, Monticelli trap1241.7%45.8%0.01 MB
E11Bogo-Indian defence, Nimzovich variation132738.1%58.0%0.86 MB
E12Queen's Indian defence61641.4%53.8%0.43 MB
E12Queen's Indian, 4.Nc3426339.9%53.1%2.64 MB
E12Queen's Indian, 4.Nc3, Botvinnik variation3221.9%45.3%0.02 MB
E12Queen's Indian, Miles variation124444.3%52.8%0.83 MB
E12Queen's Indian, Petrosian system599842.6%54.2%3.64 MB
E13Queen's Indian, 4.Nc3, main line20336.0%52.0%0.13 MB
E14Queen's Indian, 4.e3158839.8%53.5%1.03 MB
E14Queen's Indian, Averbakh variation20.0%50.0%0.00 MB
E15Queen's Indian, 4.g3186946.4%55.9%1.14 MB
E15Queen's Indian, 4.g3 Bb722139.4%53.6%0.16 MB
E15Queen's Indian, Buerger variation2437.5%60.4%0.02 MB
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1338340.2%56.4%8.19 MB
E15Queen's Indian, Rubinstein variation11035.5%57.7%0.07 MB
E16Queen's Indian, Capablanca variation31340.6%56.4%0.21 MB
E16Queen's Indian, Riumin variation19840.4%56.1%0.14 MB
E16Queen's Indian, Yates variation30136.9%58.0%0.21 MB
E17Queen's Indian, 5.Bg2 Be72828.6%39.3%0.02 MB
E17Queen's Indian, Euwe variation5851.7%55.2%0.04 MB
E17Queen's Indian, Opovcensky variation60638.4%53.9%0.38 MB
E17Queen's Indian, anti-Queen's Indian system25738.9%52.5%0.17 MB
E17Queen's Indian, old main line, 6.O-O74042.0%59.0%0.48 MB
E18Queen's Indian, old main line, 7.Nc3148843.5%56.7%0.93 MB
E19Queen's Indian, old main line, 9.Qxc3128545.5%58.7%0.83 MB
E20Nimzo-Indian defence9549.5%51.1%0.07 MB
E20Nimzo-Indian, Kmoch variation61838.2%53.6%0.36 MB
E20Nimzo-Indian, Mikenas attack666.7%50.0%0.01 MB
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system36246.4%53.0%0.25 MB
E21Nimzo-Indian, three knights variation208941.3%53.6%1.30 MB
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%0.00 MB
E22Nimzo-Indian, Spielmann variation9641.7%50.0%0.07 MB
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc63638.9%52.8%0.02 MB
E23Nimzo-Indian, Spielmann, Karlsbad variation1540.0%40.0%0.01 MB
E23Nimzo-Indian, Spielmann, San Remo variation540.0%80.0%0.00 MB
E24Nimzo-Indian, Saemisch variation14947.7%48.0%0.11 MB
E24Nimzo-Indian, Saemisch, Botvinnik variation4436.4%43.2%0.03 MB
E25Nimzo-Indian, Saemisch variation10541.0%52.9%0.07 MB
E25Nimzo-Indian, Saemisch, Keres variation26345.2%53.4%0.17 MB
E25Nimzo-Indian, Saemisch, Romanovsky variation7241.7%47.2%0.05 MB
E26Nimzo-Indian, Saemisch variation4946.9%52.0%0.03 MB
E26Nimzo-Indian, Saemisch, O'Kelly variation2128.6%57.1%0.02 MB
E27Nimzo-Indian, Saemisch variation4445.5%40.9%0.03 MB
E28Nimzo-Indian, Saemisch variation8924.7%51.7%0.07 MB
E29Nimzo-Indian, Saemisch, Capablanca variation2437.5%43.8%0.02 MB
E29Nimzo-Indian, Saemisch, main line7339.7%55.5%0.05 MB
E30Nimzo-Indian, Leningrad variation53334.7%48.3%0.34 MB
E30Nimzo-Indian, Leningrad, ...b5 gambit5129.4%46.1%0.03 MB
E31Nimzo-Indian, Leningrad, main line17030.6%51.2%0.11 MB
E32Nimzo-Indian, classical variation578642.2%53.6%3.49 MB
E32Nimzo-Indian, classical, Adorjan gambit9744.3%51.0%0.06 MB
E33Nimzo-Indian, classical, 4...Nc66451.6%55.5%0.05 MB
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation25638.7%58.0%0.17 MB
E34Nimzo-Indian, classical, Noa variation69952.6%54.2%0.46 MB
E35Nimzo-Indian, classical, Noa variation, 5.cd ed48644.2%50.5%0.31 MB
E36Nimzo-Indian, classical, Botvinnik variation1030.0%65.0%0.01 MB
E36Nimzo-Indian, classical, Noa variation, 5.a325044.8%52.4%0.16 MB
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc226247.7%62.0%0.17 MB
E37Nimzo-Indian, classical, San Remo variation30.0%66.7%0.00 MB
E38Nimzo-Indian, classical, 4...c552837.9%60.4%0.35 MB
E39Nimzo-Indian, classical, Pirc variation86538.3%55.0%0.56 MB
E40Nimzo-Indian, 4.e311428.1%56.1%0.08 MB
E40Nimzo-Indian, 4.e3, Taimanov variation6334.9%63.5%0.04 MB
E41Nimzo-Indian, 4.e3 c562843.8%54.4%0.42 MB
E41Nimzo-Indian, e3, Huebner variation45133.0%50.7%0.30 MB
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)51944.3%53.8%0.35 MB
E43Nimzo-Indian, Fischer variation53237.0%53.9%0.35 MB
E44Nimzo-Indian, Fischer variation, 5.Ne229536.3%54.7%0.19 MB
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation15252.6%57.2%0.11 MB
E46Nimzo-Indian, 4.e3 O-O5930.5%57.6%0.04 MB
E46Nimzo-Indian, Reshevsky variation81644.1%51.2%0.56 MB
E46Nimzo-Indian, Simagin variation10738.3%50.0%0.08 MB
E47Nimzo-Indian, 4.e3 O-O, 5.Bd347946.8%51.6%0.32 MB
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d539440.1%48.7%0.27 MB
E49Nimzo-Indian, 4.e3, Botvinnik system16446.3%56.7%0.11 MB
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d515338.6%50.7%0.11 MB
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d511747.9%47.9%0.09 MB
E51Nimzo-Indian, 4.e3, Ragozin variation2138.1%66.7%0.02 MB
E52Nimzo-Indian, 4.e3, main line with ...b642439.4%53.2%0.29 MB
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd73961.5%48.7%0.03 MB
E53Nimzo-Indian, 4.e3, Keres variation8436.9%45.8%0.06 MB
E53Nimzo-Indian, 4.e3, main line with ...c534539.7%54.9%0.22 MB
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc115348.7%55.6%0.74 MB
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation1968.4%65.8%0.01 MB
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation175347.5%55.3%1.14 MB
E56Nimzo-Indian, 4.e3, main line with 7...Nc630352.8%55.8%0.21 MB
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd333.3%16.7%0.00 MB
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3138544.5%53.0%0.89 MB
E59Nimzo-Indian, 4.e3, main line71343.6%53.1%0.45 MB
E60King's Indian defence52635.4%57.2%0.37 MB
E60King's Indian, 3.Nf3248639.2%57.8%1.60 MB
E60King's Indian, 3.g3133542.2%56.1%0.86 MB
E60King's Indian, 3.g3, counterthrust variation911.1%27.8%0.01 MB
E60King's Indian, Anti-Gruenfeld4434.1%60.2%0.03 MB
E60Queen's pawn, Mengarini attack3531.4%61.4%0.03 MB
E61King's Indian defence, 3.Nc368337.0%55.7%0.45 MB
E61King's Indian, Smyslov system7736.4%53.2%0.06 MB
E62King's Indian, fianchetto variation5836.2%49.1%0.04 MB
E62King's Indian, fianchetto with ...Nc621534.9%54.7%0.14 MB
E62King's Indian, fianchetto, Kavalek (Bronstein) variation52832.4%60.7%0.36 MB
E62King's Indian, fianchetto, Larsen system24941.0%62.2%0.17 MB
E62King's Indian, fianchetto, Simagin variation8135.8%63.6%0.06 MB
E62King's Indian, fianchetto, Uhlmann (Szabo) variation24331.7%59.1%0.17 MB
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation24837.5%60.3%0.18 MB
E63King's Indian, fianchetto, Panno variation204437.3%57.2%1.32 MB
E64King's Indian, fianchetto, Yugoslav system8438.1%58.3%0.06 MB
E65King's Indian, fianchetto, Yugoslav, 7.O-O15749.7%52.2%0.10 MB
E66King's Indian, fianchetto, Yugoslav Panno29933.8%56.7%0.20 MB
E67King's Indian, fianchetto with ...Nd77337.0%52.7%0.06 MB
E67King's Indian, fianchetto, classical variation44639.5%55.8%0.31 MB
E68King's Indian, fianchetto, classical variation, 8.e4114438.4%60.2%0.73 MB
E69King's Indian, fianchetto, classical main line41533.7%61.2%0.26 MB
E70King's Indian, 4.e481533.3%58.7%0.52 MB
E70King's Indian, Kramer system30429.3%57.7%0.18 MB
E70King's Indian, accelerated Averbakh system10132.7%55.9%0.07 MB
E71King's Indian, Makagonov system (5.h3)61534.0%59.4%0.41 MB
E72King's Indian with e4 & g35435.2%56.5%0.04 MB
E72King's Indian, Pomar system616.7%58.3%0.01 MB
E73King's Indian, 5.Be23141.9%59.7%0.02 MB
E73King's Indian, Averbakh system83232.0%54.8%0.52 MB
E73King's Indian, Semi-Averbakh system2040.0%55.0%0.02 MB
E74King's Indian, Averbakh, 6...c522133.9%55.9%0.14 MB
E75King's Indian, Averbakh, main line4425.0%60.2%0.03 MB
E76King's Indian, Four pawns attack20037.0%60.5%0.13 MB
E76King's Indian, Four pawns attack, dynamic line13834.1%54.0%0.08 MB
E77King's Indian, Four pawns attack10332.0%57.8%0.07 MB
E77King's Indian, Four pawns attack, 6.Be2944.4%55.6%0.01 MB
E77King's Indian, Four pawns attack, Florentine gambit2100.0%50.0%0.00 MB
E78King's Indian, Four pawns attack, with Be2 and Nf310.0%0.0%0.00 MB
E79King's Indian, Four pawns attack, main line60.0%66.7%0.01 MB
E80King's Indian, Saemisch variation28333.6%58.1%0.19 MB
E81King's Indian, Saemisch, 5...O-O189433.9%55.0%1.12 MB
E81King's Indian, Saemisch, Byrne variation7339.7%52.7%0.05 MB
E82King's Indian, Saemisch, double fianchetto variation8731.0%59.2%0.07 MB
E83King's Indian, Saemisch, 6...Nc65427.8%47.2%0.03 MB
E83King's Indian, Saemisch, Panno formation17241.9%56.4%0.12 MB
E83King's Indian, Saemisch, Ruban variation1136.4%45.5%0.01 MB
E84King's Indian, Saemisch, Panno main line35637.9%52.1%0.24 MB
E85King's Indian, Saemisch, orthodox variation4932.7%51.0%0.03 MB
E86King's Indian, Saemisch, orthodox, 7.Nge2 c632428.7%53.5%0.20 MB
E87King's Indian, Saemisch, orthodox, 7.d524127.4%59.3%0.16 MB
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%0.00 MB
E88King's Indian, Saemisch, orthodox, 7.d5 c629332.1%58.0%0.19 MB
E89King's Indian, Saemisch, orthodox main line2433.3%62.5%0.02 MB
E90King's Indian, 5.Nf376633.4%56.9%0.51 MB
E90King's Indian, Larsen variation7940.5%60.8%0.07 MB
E90King's Indian, Zinnowitz variation2846.4%55.4%0.02 MB
E91King's Indian, 6.Be255033.1%64.5%0.37 MB
E91King's Indian, Kazakh variation28836.8%55.6%0.20 MB
E92King's Indian, Andersson variation25052.8%50.4%0.17 MB
E92King's Indian, Gligoric-Taimanov system137133.4%58.5%0.89 MB
E92King's Indian, Petrosian system7726.0%50.6%0.05 MB
E92King's Indian, Petrosian system, Stein variation51132.9%53.0%0.36 MB
E92King's Indian, classical variation2339.1%41.3%0.02 MB
E93King's Indian, Petrosian system, main line7634.2%50.0%0.06 MB
E94King's Indian, orthodox variation94536.7%54.4%0.62 MB
E94King's Indian, orthodox, 7...Nbd784333.3%60.6%0.57 MB
E94King's Indian, orthodox, Donner variation14638.4%59.6%0.11 MB
E95King's Indian, orthodox, 7...Nbd7, 8.Re130834.7%55.7%0.22 MB
E96King's Indian, orthodox, 7...Nbd7, main line3542.9%58.6%0.03 MB
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)383832.9%56.2%2.52 MB
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack118835.4%58.3%0.68 MB
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne183426.7%61.0%0.54 MB
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack4920.4%67.3%0.03 MB
E99King's Indian, orthodox, Aronin-Taimanov, main line1625.0%62.5%0.01 MB
Created in 2005-2013 by CCRL team
Last games added on September 23, 2017