CCRL 40/4
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 1'579'577 games
played by 1'866 programs
21113 CPU days (X2 4600+)

White wins: 617'996 (39.1%)
Black wins: 503'684 (31.9%)
Draws: 457'897 (29.0%)
White score: 53.6%

Opening statistics

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

ECOOpeningNumber
of
games
DrawsWhite
score
A00Amar (Paris) opening7622.4%41.4%
A00Amar gambit1216.7%50.0%
A00Amsterdam attack933.3%50.0%
A00Anderssen's opening69921.5%47.5%
A00Anti-Borg (Desprez) opening2321.7%58.7%
A00Battambang opening933.3%27.8%
A00Benko's opening1091530.6%50.7%
A00Benko's opening, reversed Alekhine9225.0%46.2%
A00Clemenz (Mead's, Basman's or de Klerk's) opening442123.4%49.4%
A00Dunst (Sleipner, Heinrichsen) opening185623.3%52.0%
A00Durkin's attack6717.9%53.7%
A00Gedult's opening3116.1%40.3%
A00Global opening1618.8%71.9%
A00Grob's attack23222.0%49.4%
A00Grob, Fritz gambit3910.3%20.5%
A00Lasker simul special14027.9%46.8%
A00Mieses opening49118.1%52.9%
A00Novosibirsk opening258.0%48.0%
A00Polish (Sokolsky) opening144528.1%50.7%
A00Polish, Outflank variation26625.6%49.6%
A00Polish, Tuebingen variation7321.9%52.1%
A00Saragossa opening90418.8%50.7%
A00Van't Kruijs opening126426.2%52.2%
A00Ware (Meadow Hay) opening20521.5%47.3%
A01Nimzovich-Larsen attack91426.3%51.4%
A01Nimzovich-Larsen attack, Dutch variation16721.0%50.6%
A01Nimzovich-Larsen attack, English variation39127.4%51.0%
A01Nimzovich-Larsen attack, Indian variation58924.3%55.1%
A01Nimzovich-Larsen attack, Polish variation2634.6%51.9%
A01Nimzovich-Larsen attack, classical variation167426.7%48.5%
A01Nimzovich-Larsen attack, modern variation274831.1%50.0%
A01Nimzovich-Larsen attack, symmetrical variation61130.1%49.9%
A02Bird's opening267929.2%50.0%
A02Bird's opening, Swiss gambit1414.3%64.3%
A02Bird, From gambit7428.4%46.6%
A02Bird, From gambit, Lasker variation3414.7%54.4%
A02Bird, From gambit, Lipke variation520.0%30.0%
A02Bird, Hobbs gambit425.0%62.5%
A03Bird's opening278323.8%48.9%
A03Bird's opening, Lasker variation1838.9%47.2%
A03Bird's opening, Williams gambit1816.7%58.3%
A03Mujannah opening70.0%42.9%
A04Reti opening1442127.5%52.8%
A04Reti v Dutch222325.4%56.3%
A04Reti, Lisitsin gambit deferred5820.7%43.1%
A04Reti, Pirc-Lisitsin gambit15822.2%58.5%
A04Reti, Wade defence540.0%80.0%
A05Reti opening912628.5%52.6%
A05Reti, King's Indian attack212329.6%55.7%
A05Reti, King's Indian attack, Reti-Smyslov variation14427.8%50.7%
A05Reti, King's Indian attack, Spassky's variation78429.8%53.1%
A06Reti opening308726.1%53.5%
A06Reti, Nimzovich-Larsen attack392931.2%50.9%
A06Reti, old Indian attack31923.5%52.5%
A06Santasiere's folly13335.3%45.5%
A06Tennison (Lemberg, Zukertort) gambit1717.6%61.8%
A07Reti, King's Indian attack317233.9%53.0%
A07Reti, King's Indian attack (Barcza system)963029.3%52.9%
A07Reti, King's Indian attack (with ...c5)42626.1%48.2%
A07Reti, King's Indian attack, Keres variation73030.5%52.3%
A07Reti, King's Indian attack, Pachman system25023.2%52.4%
A07Reti, King's Indian attack, Yugoslav variation467931.3%53.6%
A08Reti, King's Indian attack110929.3%54.8%
A08Reti, King's Indian attack, French variation111130.8%50.7%
A09Reti accepted124127.6%53.1%
A09Reti accepted, Keres variation12021.7%59.2%
A09Reti opening98627.3%53.3%
A09Reti, advance variation149025.5%48.1%
A10English opening452925.0%53.2%
A10English, Adorjan defence52536.0%51.3%
A10English, Anglo-Dutch defense126424.6%55.3%
A10English, Jaenisch gambit1921.1%68.4%
A11English, Caro-Kann defensive system137127.1%55.7%
A12English, Bled variation4332.6%58.1%
A12English, Capablanca's variation7327.4%47.9%
A12English, Caro-Kann defensive system27127.7%55.5%
A12English, Caro-Kann defensive system, Bogolyubov variation13822.5%51.1%
A12English, London defensive system35232.1%49.3%
A12English, New York (London) defensive system4533.3%45.6%
A12English, Torre defensive system35734.5%52.0%
A13English opening462425.3%53.0%
A13English opening, Agincourt variation276827.5%52.1%
A13English, Kurajica defence11825.4%50.8%
A13English, Neo-Catalan157829.7%53.3%
A13English, Neo-Catalan accepted221433.5%54.4%
A13English, Romanishin gambit68931.2%54.4%
A13English, Wimpey system29029.7%45.9%
A14English, Neo-Catalan declined106335.8%52.6%
A14English, Symmetrical, Keres defence88536.3%54.9%
A15English opening1238432.9%54.0%
A15English, 1...Nf6 (Anglo-Indian defense)159326.3%52.5%
A16English opening116126.9%53.9%
A16English, Anglo-Gruenfeld defense30630.1%51.6%
A16English, Anglo-Gruenfeld defense, Korchnoi variation1136.4%63.6%
A16English, Anglo-Gruenfeld, Czech defense12531.2%66.8%
A16English, Anglo-Gruenfeld, Smyslov defense7437.8%59.5%
A17English opening36330.9%52.6%
A17English, Nimzo-English opening246230.7%54.7%
A17English, Queens Indian formation21626.4%54.4%
A17English, Queens Indian, Romanishin variation4637.0%46.7%
A18English, Mikenas-Carls variation9226.1%56.5%
A18English, Mikenas-Carls, Flohr variation15228.9%60.5%
A18English, Mikenas-Carls, Kevitz variation4617.4%54.3%
A19English, Mikenas-Carls, Sicilian variation24129.0%55.2%
A20English opening1076728.4%52.2%
A20English, Nimzovich variation28326.1%55.1%
A20English, Nimzovich, Flohr variation64728.7%46.2%
A21English opening324027.2%54.0%
A21English, Keres variation2634.6%44.2%
A21English, Kramnik-Shirov counterattack351628.3%52.6%
A21English, Smyslov defence5326.4%56.6%
A21English, Troeger defence16728.1%54.8%
A22English opening103325.4%50.4%
A22English, Bellon gambit1612.5%43.8%
A22English, Bremen, Smyslov system258628.1%49.0%
A22English, Bremen, reverse dragon159334.1%53.1%
A22English, Carls' Bremen system78924.6%54.8%
A23English, Bremen system, Keres variation43032.6%48.4%
A24English, Bremen system with ...g66825.0%59.6%
A25English, Sicilian reversed105126.0%51.6%
A25English, closed system133828.2%53.2%
A25English, closed system (without ...d6)9824.5%48.0%
A25English, closed, 5.Rb165028.8%51.8%
A25English, closed, 5.Rb1 Taimanov variation425.0%37.5%
A25English, closed, Hort variation4131.7%50.0%
A25English, closed, Taimanov variation2737.0%44.4%
A26English, Botvinnik system40524.4%47.5%
A26English, closed system33823.1%50.9%
A27English, three knights system45826.9%53.2%
A28English, Bradley Beach variation18230.2%43.1%
A28English, Nenarokov variation7035.7%46.4%
A28English, four knights system62125.1%52.3%
A28English, four knights, 4.e3133927.8%51.5%
A28English, four knights, Capablanca variation48428.9%53.3%
A28English, four knights, Marini variation136931.2%53.8%
A28English, four knights, Nimzovich variation114329.1%51.7%
A28English, four knights, Romanishin variation115734.1%50.6%
A28English, four knights, Stean variation17524.6%56.3%
A29English, four knights, kingside fianchetto1591930.6%51.5%
A30English, symmetrical variation827028.9%53.6%
A30English, symmetrical, hedgehog system736931.8%55.8%
A30English, symmetrical, hedgehog, flexible formation58036.2%56.9%
A31English, symmetrical, Benoni formation218128.2%54.5%
A32English, symmetrical variation76429.1%53.0%
A33English, symmetrical variation372635.1%52.4%
A33English, symmetrical, Geller variation267830.1%52.6%
A34English, symmetrical variation181326.1%50.7%
A34English, symmetrical, Rubinstein system35232.7%53.8%
A34English, symmetrical, three knights system230334.8%52.3%
A35English, symmetrical variation34727.1%57.6%
A35English, symmetrical, four knights system379630.1%52.9%
A36English, symmetrical variation16225.9%48.8%
A36English, symmetrical, Botvinnik system60328.4%56.1%
A36English, symmetrical, Botvinnik system reversed14126.2%50.0%
A36English, ultra-symmetrical variation190328.7%49.1%
A37English, symmetrical variation90928.5%53.0%
A37English, symmetrical, Botvinnik system reversed67626.8%51.0%
A38English, symmetrical variation71329.0%52.5%
A38English, symmetrical, main line with b31136.4%36.4%
A38English, symmetrical, main line with d315435.7%51.0%
A39English, symmetrical, main line with d4111738.0%55.3%
A40Beefeater defence3823.7%59.2%
A40Modern defence201024.4%55.7%
A40Polish defence35324.9%57.2%
A40Queen's pawn542425.7%53.6%
A40Queen's pawn, Charlick (Englund) gambit60.0%83.3%
A40Queen's pawn, English defence52021.0%54.9%
A40Queen's pawn, Franco-Indian (Keres) defence304728.2%55.8%
A40Queen's pawn, Keres defence334827.7%55.4%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence66126.8%56.5%
A41Modern defence8927.0%56.2%
A41Old Indian defence281625.6%50.9%
A41Old Indian, Tartakower (Wade) variation317624.7%58.4%
A41Queen's Pawn478523.1%56.1%
A41Robatsch defence, Rossolimo variation16627.7%54.8%
A42Modern defence, Averbakh system86528.9%58.0%
A42Modern defence, Averbakh system, Kotov variation60925.3%57.6%
A42Modern defence, Averbakh system, Randspringer variation728.6%28.6%
A42Pterodactyl defence110827.1%61.6%
A43Hawk (Habichd) defence425.0%37.5%
A43Old Benoni defence242925.2%55.4%
A43Old Benoni, Franco-Benoni defence15125.2%61.6%
A43Old Benoni, Mujannah formation11921.0%60.9%
A43Old Benoni, Schmid's system2429.2%52.1%
A43Woozle defence3915.4%48.7%
A44Old Benoni defence6225.8%66.1%
A44Semi-Benoni (`blockade variation')98821.0%61.0%
A45Blackmar-Diemer gambit15926.4%54.1%
A45Canard opening2718.5%50.0%
A45Paleface attack19119.9%41.4%
A45Queen's pawn game502826.1%51.3%
A45Queen's pawn, Bronstein gambit1711.8%47.1%
A45Trompovsky attack (Ruth, Opovcensky opening)683924.6%51.7%
A46Doery defence250.0%25.0%
A46Queen's pawn game591727.1%54.1%
A46Queen's pawn, Torre attack128726.3%51.6%
A46Queen's pawn, Torre attack, Wagner gambit2718.5%38.9%
A46Queen's pawn, Yusupov-Rubinstein system124230.0%51.2%
A47Queen's Indian defence92428.0%53.6%
A47Queen's Indian, Marienbad system13530.4%49.3%
A47Queen's Indian, Marienbad system, Berg variation922.2%55.6%
A48King's Indian, East Indian defence159528.5%53.5%
A48King's Indian, London system105128.4%51.7%
A48King's Indian, Torre attack180529.5%50.0%
A49King's Indian, fianchetto without c4202628.0%54.2%
A50Kevitz-Trajkovich defence107327.6%53.3%
A50Queen's Indian accelerated28431.7%54.2%
A50Queen's pawn game187827.6%56.0%
A51Budapest defence declined5221.2%52.9%
A51Budapest, Fajarowicz variation11625.9%61.2%
A51Budapest, Fajarowicz, Steiner variation1100.0%50.0%
A52Budapest defence6820.6%55.9%
A52Budapest, Adler variation59329.5%59.3%
A52Budapest, Alekhine variation5922.0%50.0%
A52Budapest, Alekhine, Abonyi variation4630.4%63.0%
A52Budapest, Rubinstein variation68536.1%58.2%
A53Old Indian defence174729.3%55.2%
A53Old Indian, Janowski variation58419.5%57.7%
A54Old Indian, Dus-Khotimirsky variation50.0%60.0%
A54Old Indian, Ukrainian variation18230.2%49.2%
A54Old Indian, Ukrainian variation, 4.Nf329025.9%54.7%
A55Old Indian, main line112027.0%62.2%
A56Benoni defence149427.0%58.7%
A56Benoni defence, Hromodka system107121.0%58.6%
A56Czech Benoni defence75525.2%61.6%
A56Czech Benoni, King's Indian system30318.8%59.2%
A56Vulture defence30.0%33.3%
A57Benko gambit112724.8%54.6%
A57Benko gambit half accepted119229.4%57.9%
A57Benko gambit, Nescafe Frappe attack120.0%33.3%
A57Benko gambit, Zaitsev system6823.5%50.0%
A58Benko gambit accepted81530.7%55.3%
A58Benko gambit, Nd2 variation1330.8%53.8%
A58Benko gambit, fianchetto variation39529.4%55.2%
A59Benko gambit8433.3%63.1%
A59Benko gambit, 7.e4837.5%56.3%
A59Benko gambit, Ne2 variation1428.6%64.3%
A59Benko gambit, main line90234.1%62.2%
A60Benoni defence20124.4%52.5%
A61Benoni defence73024.8%58.6%
A61Benoni, Nimzovich (knight's tour) variation68027.8%57.0%
A61Benoni, Uhlmann variation10928.4%50.9%
A61Benoni, fianchetto variation6625.8%53.8%
A62Benoni, fianchetto variation119522.0%55.5%
A63Benoni, fianchetto, 9...Nbd79426.6%56.9%
A64Benoni, fianchetto, 11...Re818426.6%52.4%
A65Benoni, 6.e418223.6%59.1%
A66Benoni, Mikenas variation450.0%50.0%
A66Benoni, pawn storm variation560.0%70.0%
A67Benoni, Taimanov variation35718.8%59.2%
A68Benoni, four pawns attack140.0%42.9%
A69Benoni, four pawns attack, main line8134.6%39.5%
A70Benoni, classical with e4 and Nf3144527.1%59.8%
A70Benoni, classical without 9.O-O714.3%78.6%
A71Benoni, classical, 8.Bg512627.0%54.0%
A72Benoni, classical without 9.O-O12227.9%60.7%
A73Benoni, classical, 9.O-O25824.8%53.1%
A74Benoni, classical, 9...a6, 10.a42832.1%51.8%
A75Benoni, classical with ...a6 and 10...Bg414928.9%53.4%
A76Benoni, classical, 9...Re811315.0%59.7%
A77Benoni, classical, 9...Re8, 10.Nd240624.9%55.8%
A78Benoni, classical with ...Re8 and ...Na68535.3%52.9%
A79Benoni, classical, 11.f319820.2%66.7%
A80Dutch744726.4%54.1%
A80Dutch, 2.Bg5 variation226623.0%53.1%
A80Dutch, Korchnoi attack10032.0%52.0%
A80Dutch, Krejcik gambit14934.2%46.6%
A80Dutch, Manhattan (Alapin, Ulvestad) variation11821.2%54.7%
A80Dutch, Spielmann gambit333.3%16.7%
A80Dutch, Von Pretzel gambit1100.0%50.0%
A81Dutch defence709628.5%56.1%
A81Dutch defence, Blackburne variation7131.0%62.0%
A81Dutch, Leningrad, Karlsbad variation742.9%64.3%
A82Dutch, Balogh defence50.0%60.0%
A82Dutch, Staunton gambit14530.3%39.3%
A82Dutch, Staunton gambit, Tartakower variation1618.8%53.1%
A83Dutch, Staunton gambit, Alekhine variation1931.6%63.2%
A83Dutch, Staunton gambit, Chigorin variation5232.7%68.3%
A83Dutch, Staunton gambit, Lasker variation1127.3%50.0%
A83Dutch, Staunton gambit, Nimzovich variation714.3%50.0%
A83Dutch, Staunton gambit, Staunton's line22326.9%46.6%
A84Dutch defence159225.9%57.2%
A84Dutch defence, Rubinstein variation64328.1%56.8%
A84Dutch, Staunton gambit deferred1625.0%37.5%
A85Dutch with c4 & Nc351132.7%55.7%
A86Dutch with c4 & g319226.0%62.5%
A86Dutch, Hort-Antoshin system20.0%50.0%
A86Dutch, Leningrad variation17931.8%60.6%
A87Dutch, Leningrad, main variation77228.6%59.5%
A88Dutch, Leningrad, main variation with c6211531.2%56.9%
A89Dutch, Leningrad, main variation with Nc6132628.5%57.9%
A90Dutch defence202125.9%55.8%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation48128.3%60.5%
A90Dutch-Indian, Alekhine variation11030.9%48.2%
A91Dutch defence19632.1%52.8%
A92Dutch defence11232.1%60.7%
A92Dutch defence, Alekhine variation11631.0%59.5%
A92Dutch, stonewall variation32727.2%58.9%
A92Dutch, stonewall with Nc35619.6%61.6%
A93Dutch, stonewall, Botwinnik variation24427.9%59.8%
A94Dutch, stonewall with Ba317836.0%53.4%
A95Dutch, stonewall with Nc344726.2%54.0%
A95Dutch, stonewall: Chekhover variation5036.0%56.0%
A96Dutch, classical variation52330.2%62.1%
A97Dutch, Ilyin-Genevsky variation4431.8%61.4%
A97Dutch, Ilyin-Genevsky, Winter variation17936.3%64.5%
A98Dutch, Ilyin-Genevsky variation with Qc217026.5%60.9%
A99Dutch, Ilyin-Genevsky variation with b349724.9%59.2%
B00Barnes defence1816.7%63.9%
B00Carr's defence6524.6%53.8%
B00Corn stalk defence1136.4%81.8%
B00Fred80.0%87.5%
B00Guatemala defence10.0%100.0%
B00KP, Colorado counter1631.3%59.4%
B00KP, Nimzovich defence241023.5%57.8%
B00KP, Nimzovich defence, Bogolyubov variation26016.9%55.0%
B00KP, Nimzovich defence, Marshall gambit616.7%41.7%
B00King's pawn opening273925.1%53.4%
B00Owen defence71024.9%55.7%
B00Reversed Grob (Borg/Basman defence/macho Grob)16917.2%51.8%
B00St. George (Baker) defence18721.9%53.7%
B01Scandinavian (centre counter) defence463127.0%60.0%
B01Scandinavian defence141229.4%57.8%
B01Scandinavian defence, Gruenfeld variation1435.7%53.6%
B01Scandinavian defence, Lasker variation14528.3%63.8%
B01Scandinavian gambit18530.3%47.0%
B01Scandinavian, Anderssen counter-attack250.0%75.0%
B01Scandinavian, Anderssen counter-attack, Goteborg system50.0%100.0%
B01Scandinavian, Icelandic gambit7530.7%50.0%
B01Scandinavian, Kiel variation520.0%90.0%
B01Scandinavian, Marshall variation85327.7%60.0%
B01Scandinavian, Mieses-Kotrvc gambit267.7%50.0%
B01Scandinavian, Pytel-Wade variation270834.2%59.9%
B01Scandinavian, Richter variation1822.2%72.2%
B02Alekhine's defence54732.7%56.0%
B02Alekhine's defence, Brooklyn defence6221.0%58.9%
B02Alekhine's defence, Kmoch variation60.0%50.0%
B02Alekhine's defence, Krejcik variation1631.3%34.4%
B02Alekhine's defence, Maroczy variation26822.8%47.2%
B02Alekhine's defence, Mokele Mbembe (Buecker) variation2722.2%63.0%
B02Alekhine's defence, Saemisch attack22621.2%57.1%
B02Alekhine's defence, Scandinavian variation33826.9%55.2%
B02Alekhine's defence, Spielmann variation1533.3%56.7%
B02Alekhine's defence, Steiner variation825.0%37.5%
B02Alekhine's defence, Two pawns' (Lasker's) attack12939.5%46.9%
B02Alekhine's defence, Welling variation2927.6%44.8%
B03Alekhine's defence76023.8%53.4%
B03Alekhine's defence, Balogh variation4119.5%61.0%
B03Alekhine's defence, O'Sullivan gambit166.3%59.4%
B03Alekhine's defence, exchange variation73830.9%58.0%
B03Alekhine's defence, exchange, Karpov variation540.0%40.0%
B03Alekhine's defence, four pawns attack9131.9%57.7%
B03Alekhine's defence, four pawns attack, 6...Nc64922.4%50.0%
B03Alekhine's defence, four pawns attack, 7.Be315230.3%61.2%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.20.0%50.0%
B03Alekhine's defence, four pawns attack, Planinc variation20.0%100.0%
B03Alekhine's defence, four pawns attack, Tartakower variation250.0%75.0%
B03Alekhine's defence, four pawns attack, Trifunovic variation4221.4%70.2%
B03Alekhine's defence, four pawns attack, fianchetto variation4936.7%63.3%
B04Alekhine's defence, modern variation38921.3%61.3%
B04Alekhine's defence, modern, Keres variation15934.0%61.0%
B04Alekhine's defence, modern, Larsen variation122332.7%56.8%
B04Alekhine's defence, modern, Schmid variation13129.8%65.3%
B04Alekhine's defence, modern, fianchetto variation83129.8%55.7%
B05Alekhine's defence, modern variation, 4...Bg485828.9%64.3%
B05Alekhine's defence, modern, Alekhine variation560.0%50.0%
B05Alekhine's defence, modern, Flohr variation35329.7%65.6%
B05Alekhine's defence, modern, Panov variation1735.3%70.6%
B06Robatsch (modern) defence961229.5%56.3%
B06Robatsch defence121327.8%58.8%
B06Robatsch defence, Gurgenidze variation69223.6%63.1%
B06Robatsch defence, Pseudo-Austrian attack91925.5%58.9%
B06Robatsch defence, Two knights variation58030.0%58.1%
B06Robatsch defence, Two knights, Suttles variation244834.3%58.3%
B06Robatsch defence, three pawns attack9416.0%52.7%
B07Pirc defence255326.2%54.8%
B07Pirc, 150 attack53830.5%51.9%
B07Pirc, Byrne variation42725.1%55.6%
B07Pirc, Holmov system4233.3%50.0%
B07Pirc, Sveshnikov system94627.2%52.6%
B07Pirc, Ufimtsev-Pytel variation81523.9%55.9%
B07Pirc, bayonet (Mariotti) attack4515.6%52.2%
B07Robatsch defence, Geller's system153830.0%56.9%
B08Pirc, classical (two knights) system85727.5%56.4%
B08Pirc, classical system, 5.Be2466330.9%58.4%
B08Pirc, classical, h3 system66329.9%56.3%
B09Pirc, Austrian attack74027.8%57.7%
B09Pirc, Austrian attack, 6.Bd3388030.8%58.1%
B09Pirc, Austrian attack, 6.Be373125.6%55.3%
B09Pirc, Austrian attack, 6.e530628.4%59.6%
B09Pirc, Austrian attack, Ljubojevic variation1323.1%73.1%
B09Pirc, Austrian attack, dragon formation113431.5%54.1%
B10Caro-Kann defence518925.1%53.9%
B10Caro-Kann, Goldman (Spielmann) variation9520.0%50.0%
B10Caro-Kann, Hillbilly attack3735.1%58.1%
B10Caro-Kann, Two knights variation81826.5%56.1%
B10Caro-Kann, anti-Caro-Kann defence128825.9%56.9%
B10Caro-Kann, anti-anti-Caro-Kann defence214734.1%52.0%
B10Caro-Kann, closed (Breyer) variation165924.5%50.3%
B11Caro-Kann, Two knights, 3...Bg4143324.8%52.8%
B12Caro-Kann defence175321.7%56.3%
B12Caro-Kann, 3.Nd247026.2%59.3%
B12Caro-Kann, Edinburgh variation456.7%76.7%
B12Caro-Kann, Tartakower (fantasy) variation94426.9%54.8%
B12Caro-Kann, advance variation2034324.8%53.9%
B12Caro-Kann, advance, Short variation9218.5%69.0%
B12Caro-Masi defence1414.3%50.0%
B12de Bruycker defence2330.4%50.0%
B13Caro-Kann, Panov-Botvinnik attack179032.3%53.5%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation4045.0%60.0%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack933.3%38.9%
B13Caro-Kann, Panov-Botvinnik, Herzog defence2123.8%54.8%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation425.0%87.5%
B13Caro-Kann, Panov-Botvinnik, normal variation24535.5%48.8%
B13Caro-Kann, exchange variation104927.4%50.5%
B13Caro-Kann, exchange, Rubinstein variation20934.0%55.7%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6515533.1%55.1%
B14Caro-Kann, Panov-Botvinnik attack, 5...g644339.1%54.5%
B15Caro-Kann defence57224.1%49.3%
B15Caro-Kann, Alekhine gambit2948.3%55.2%
B15Caro-Kann, Forgacs variation10136.6%55.9%
B15Caro-Kann, Gurgenidze counter-attack3116.1%59.7%
B15Caro-Kann, Gurgenidze system51728.2%57.6%
B15Caro-Kann, Rasa-Studier gambit1127.3%40.9%
B15Caro-Kann, Tartakower (Nimzovich) variation99331.4%53.3%
B16Caro-Kann, Bronstein-Larsen variation69824.4%61.2%
B17Caro-Kann, Steinitz variation525328.9%53.9%
B18Caro-Kann, classical variation193030.4%55.3%
B18Caro-Kann, classical, 6.h4203730.5%53.5%
B18Caro-Kann, classical, Flohr variation8439.3%58.9%
B18Caro-Kann, classical, Maroczy attack742.9%64.3%
B19Caro-Kann, classical, 7...Nd790324.7%52.1%
B19Caro-Kann, classical, Spassky variation817227.6%57.5%
B20Sicilian defence583224.0%48.6%
B20Sicilian, Gloria variation922.2%55.6%
B20Sicilian, Keres variation (2.Ne2)111525.6%53.0%
B20Sicilian, Steinitz variation116925.5%53.8%
B20Sicilian, wing gambit8023.8%45.6%
B20Sicilian, wing gambit, Carlsbad variation2416.7%58.3%
B20Sicilian, wing gambit, Marshall variation36726.4%40.7%
B20Sicilian, wing gambit, Santasiere variation250.0%75.0%
B21Sicilian, Andreaschek gambit1747.1%64.7%
B21Sicilian, Grand Prix attack201625.0%49.4%
B21Sicilian, Smith-Morra gambit95628.1%50.3%
B22Sicilian, 2.c3, Heidenfeld variation4228.6%42.9%
B22Sicilian, Alapin's variation (2.c3)1619231.6%53.9%
B23Sicilian, Grand Prix attack55125.8%52.6%
B23Sicilian, Grand Prix attack, Schofman variation1827.8%30.6%
B23Sicilian, chameleon variation106428.2%55.1%
B23Sicilian, closed545926.6%52.9%
B23Sicilian, closed, 2...Nc6318627.6%53.0%
B23Sicilian, closed, Korchnoi variation33432.9%47.9%
B24Sicilian, closed57527.5%49.4%
B24Sicilian, closed, Smyslov variation837.5%68.8%
B25Sicilian, closed24829.0%50.0%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)9113.2%52.7%
B25Sicilian, closed, 6.f481628.6%49.6%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)8923.6%46.6%
B26Sicilian, closed, 6.Be351924.9%47.5%
B27Sicilian defence10828.7%59.7%
B27Sicilian, Acton extension1323.1%57.7%
B27Sicilian, Hungarian variation1020633.6%57.2%
B27Sicilian, Katalimov variation16025.6%53.4%
B27Sicilian, Quinteros variation9818.4%59.2%
B27Sicilian, Stiletto (Althouse) variation1414.3%71.4%
B28Sicilian, O'Kelly variation77826.9%57.3%
B29Sicilian, Nimzovich-Rubinstein variation48527.2%56.7%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit6535.4%56.2%
B30Sicilian defence401828.3%52.3%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)631828.8%54.5%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)384730.1%55.6%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation1040.0%40.0%
B32Sicilian defence97727.8%52.3%
B32Sicilian, Flohr variation14027.9%56.1%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation158029.2%53.6%
B32Sicilian, Labourdonnais-Loewenthal variation28825.7%55.2%
B32Sicilian, Nimzovich variation2814.3%53.6%
B33Sicilian defence93029.2%52.6%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation110023.8%53.0%
B33Sicilian, Pelikan, Bird variation23828.6%58.0%
B33Sicilian, Pelikan, Chelyabinsk variation560926.9%55.3%
B33Sicilian, Sveshnikov variation305026.3%52.8%
B34Sicilian, accelerated fianchetto, exchange variation2334.8%47.8%
B34Sicilian, accelerated fianchetto, modern variation104232.1%52.2%
B35Sicilian, accelerated fianchetto, modern variation with Bc4436734.1%53.8%
B36Sicilian, accelerated fianchetto, Gurgenidze variation35337.7%53.1%
B36Sicilian, accelerated fianchetto, Maroczy bind141135.8%55.8%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg732434.6%52.5%
B37Sicilian, accelerated fianchetto, Simagin variation1030.0%45.0%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3289638.8%57.0%
B39Sicilian, accelerated fianchetto, Breyer variation148532.7%60.9%
B40Sicilian defence826228.5%52.6%
B40Sicilian, Anderssen variation208431.5%55.6%
B40Sicilian, Marshall variation2416.7%41.7%
B40Sicilian, Pin variation (Sicilian counter-attack)9119.8%54.9%
B40Sicilian, Pin, Jaffe variation30.0%100.0%
B40Sicilian, Pin, Koch variation12223.8%70.1%
B41Sicilian, Kan variation26929.0%53.9%
B41Sicilian, Kan, Maroczy bind (Reti variation)73128.6%54.0%
B41Sicilian, Kan, Maroczy bind - Bronstein variation5928.8%56.8%
B42Sicilian, Kan, 5.Bd3427829.1%56.7%
B42Sicilian, Kan, Gipslis variation19329.0%57.0%
B42Sicilian, Kan, Polugaievsky variation280326.5%54.2%
B42Sicilian, Kan, Swiss cheese variation29527.5%56.4%
B43Sicilian, Kan, 5.Nc3567729.0%55.2%
B44Sicilian defence42329.8%53.0%
B44Sicilian, Szen (`anti-Taimanov') variation96531.3%51.4%
B44Sicilian, Szen variation, Dely-Kasparov gambit2236.4%54.5%
B44Sicilian, Szen, hedgehog variation41229.9%48.2%
B45Sicilian, Taimanov variation428927.6%54.3%
B45Sicilian, Taimanov, American attack1747.1%41.2%
B46Sicilian, Taimanov variation554828.8%54.7%
B47Sicilian, Taimanov (Bastrikov) variation1080730.7%54.2%
B48Sicilian, Taimanov variation684327.9%54.0%
B49Sicilian, Taimanov variation207131.0%55.0%
B50Sicilian495827.6%52.6%
B50Sicilian, wing gambit deferred3619.4%45.8%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack250530.1%55.4%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7144534.3%50.7%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit16627.1%43.1%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation104633.7%54.4%
B53Sicilian, Chekhover variation85935.7%49.5%
B53Sicilian, Chekhover, Zaitsev variation3917.9%52.6%
B54Sicilian95825.5%54.2%
B54Sicilian, Prins (Moscow) variation45531.0%52.0%
B55Sicilian, Prins variation, Venice attack11735.9%56.4%
B56Sicilian506726.1%54.4%
B56Sicilian, Venice attack64434.5%63.0%
B57Sicilian, Magnus Smith trap4129.3%53.7%
B57Sicilian, Sozin, Benko variation509029.4%50.9%
B57Sicilian, Sozin, not Scheveningen54128.8%55.3%
B58Sicilian, Boleslavsky variation87233.0%49.0%
B58Sicilian, Boleslavsky, Louma variation3727.0%62.2%
B58Sicilian, classical73235.2%52.2%
B59Sicilian, Boleslavsky variation, 7.Nb314938.9%53.7%
B60Sicilian, Richter-Rauzer124225.3%57.4%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2433.3%54.2%
B60Sicilian, Richter-Rauzer, Larsen variation32823.5%54.7%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd258027.6%60.2%
B62Sicilian, Richter-Rauzer, 6...e617525.7%48.3%
B62Sicilian, Richter-Rauzer, Keres variation53530.5%53.7%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation51032.4%49.5%
B62Sicilian, Richter-Rauzer, Podvebrady variation3228.1%51.6%
B63Sicilian, Richter-Rauzer, Rauzer attack43027.0%55.6%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7200827.5%52.2%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f461232.7%54.6%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation205.0%77.5%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4149930.7%56.6%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a61469224.9%51.2%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7697825.1%52.6%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be724027.9%56.0%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf644823.9%57.3%
B70Sicilian, dragon variation75629.6%49.7%
B71Sicilian, dragon, Levenfish variation7133.8%49.3%
B71Sicilian, dragon, Levenfish; Flohr variation425.0%62.5%
B72Sicilian, dragon, 6.Be322726.9%50.4%
B72Sicilian, dragon, classical attack7028.6%58.6%
B72Sicilian, dragon, classical, Amsterdam variation6338.1%44.4%
B72Sicilian, dragon, classical, Grigoriev variation850.0%62.5%
B72Sicilian, dragon, classical, Nottingham variation8328.9%45.8%
B73Sicilian, dragon, classical, 8.O-O21234.4%55.4%
B73Sicilian, dragon, classical, Richter variation19536.9%48.7%
B73Sicilian, dragon, classical, Zollner gambit1637.5%25.0%
B74Sicilian, dragon, classical, 9.Nb322533.8%49.8%
B74Sicilian, dragon, classical, Alekhine variation3522.9%62.9%
B74Sicilian, dragon, classical, Reti-Tartakower variation20034.0%52.5%
B74Sicilian, dragon, classical, Spielmann variation6628.8%53.8%
B75Sicilian, dragon, Yugoslav attack37628.7%51.9%
B76Sicilian, dragon, Yugoslav attack, 7...O-O58029.7%50.3%
B76Sicilian, dragon, Yugoslav attack, Rauser variation130725.6%59.3%
B77Sicilian, dragon, Yugoslav attack, 9...Bd746525.6%55.2%
B77Sicilian, dragon, Yugoslav attack, 9.Bc49329.0%53.2%
B77Sicilian, dragon, Yugoslav attack, Byrne variation50.0%80.0%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O104324.2%54.3%
B79Sicilian, dragon, Yugoslav attack, 12.h414531.0%64.5%
B80Sicilian, Scheveningen variation140124.0%53.6%
B80Sicilian, Scheveningen, English variation57525.0%50.8%
B80Sicilian, Scheveningen, Vitolins variation11019.1%44.1%
B80Sicilian, Scheveningen, fianchetto variation52428.2%51.7%
B81Sicilian, Scheveningen, Keres attack464325.8%58.9%
B82Sicilian, Scheveningen, 6.f476629.9%55.7%
B82Sicilian, Scheveningen, Tal variation18717.1%59.9%
B83Sicilian, Scheveningen, 6.Be281031.2%51.0%
B83Sicilian, modern Scheveningen82029.6%49.8%
B83Sicilian, modern Scheveningen, main line69635.9%52.9%
B83Sicilian, modern Scheveningen, main line with Nb316023.1%49.7%
B84Sicilian, Scheveningen (Paulsen), classical variation888228.8%51.7%
B84Sicilian, Scheveningen, classical, Nd7 system8223.2%53.0%
B85Sicilian, Scheveningen, classical24639.0%52.8%
B85Sicilian, Scheveningen, classical main line69940.1%54.2%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc62321.7%50.0%
B85Sicilian, Scheveningen, classical, Maroczy system6633.3%54.5%
B86Sicilian, Sozin attack23124.7%44.4%
B87Sicilian, Sozin with ...a6 and ...b5137427.7%48.3%
B88Sicilian, Sozin, Fischer variation4250.0%51.2%
B88Sicilian, Sozin, Leonhardt variation63632.5%49.6%
B89Sicilian, Sozin, 7.Be3423426.8%49.0%
B89Sicilian, Velimirovic attack168224.5%51.0%
B90Sicilian, Najdorf1145524.8%51.0%
B90Sicilian, Najdorf, Adams attack238922.9%53.4%
B90Sicilian, Najdorf, Byrne (English) attack4749624.7%51.5%
B90Sicilian, Najdorf, Lipnitzky attack219128.7%48.8%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation137326.9%51.1%
B92Sicilian, Najdorf, Opovcensky variation1070229.6%52.6%
B93Sicilian, Najdorf, 6.f4247229.4%49.4%
B94Sicilian, Najdorf, 6.Bg5147324.7%53.1%
B95Sicilian, Najdorf, 6...e6123527.2%52.7%
B96Sicilian, Najdorf, 7.f4179822.9%49.2%
B96Sicilian, Najdorf, Polugayevsky variation13324.8%52.3%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation4520.0%52.2%
B97Sicilian, Najdorf, 7...Qb6236723.6%46.7%
B97Sicilian, Najdorf, Poisoned pawn variation327127.0%44.4%
B98Sicilian, Najdorf variation20724.2%48.8%
B98Sicilian, Najdorf, 7...Be725924.7%52.5%
B98Sicilian, Najdorf, Browne variation9632.3%57.8%
B98Sicilian, Najdorf, Goteborg (Argentine) variation1435.7%46.4%
B99Sicilian, Najdorf, 7...Be7 main line158121.9%54.6%
C00French defence361322.9%55.2%
C00French defence, Steiner variation109027.6%49.7%
C00French, Alapin variation4515.6%45.6%
C00French, Chigorin variation306524.5%50.8%
C00French, King's Indian attack727328.5%50.8%
C00French, Labourdonnais variation63125.8%49.0%
C00French, Pelikan variation8427.4%50.6%
C00French, Reti (Spielmann) variation28226.6%54.8%
C00French, Reversed Philidor formation8229.3%40.2%
C00French, Schlechter variation46431.5%50.9%
C00French, Steinitz attack5036.0%52.0%
C00French, Two knights variation80023.6%50.4%
C00French, Wing gambit4610.9%40.2%
C00Lengfellner system10827.8%61.1%
C00St. George defence62026.1%55.5%
C01French, exchange variation202830.7%53.4%
C01French, exchange, Bogolyubov variation922.2%33.3%
C01French, exchange, Svenonius variation6137.7%58.2%
C02French, advance variation201524.9%53.7%
C02French, advance, Euwe variation275225.7%52.0%
C02French, advance, Milner-Barry gambit12525.6%53.6%
C02French, advance, Nimzovich system31718.9%46.7%
C02French, advance, Nimzovich variation4325.6%22.1%
C02French, advance, Paulsen attack205624.5%53.6%
C02French, advance, Steinitz variation66428.5%49.8%
C02French, advance, Wade variation38427.3%54.8%
C03French, Tarrasch278629.7%56.2%
C03French, Tarrasch, Guimard variation22622.6%60.8%
C03French, Tarrasch, Haberditz variation1513.3%66.7%
C04French, Tarrasch, Guimard main line42326.7%56.1%
C05French, Tarrasch, Botvinnik variation14924.2%57.0%
C05French, Tarrasch, closed variation189424.1%56.8%
C06French, Tarrasch, Leningrad variation5117.6%53.9%
C06French, Tarrasch, closed variation, main line266632.3%55.3%
C07French, Tarrasch, Eliskases variation6633.3%47.0%
C07French, Tarrasch, open variation613632.5%52.9%
C08French, Tarrasch, open, 4.ed ed295236.9%53.2%
C09French, Tarrasch, open variation, main line216136.8%55.9%
C10French, Fort Knox variation45633.6%54.1%
C10French, Frere (Becker) variation4126.8%52.4%
C10French, Marshall variation1435.7%67.9%
C10French, Paulsen variation149827.2%56.4%
C10French, Rubinstein variation701232.4%53.3%
C10French, Rubinstein, Capablanca line2035.0%52.5%
C11French defence58225.1%48.8%
C11French, Burn variation899330.7%52.0%
C11French, Henneberger variation3138.7%32.3%
C11French, Steinitz variation175327.0%53.7%
C11French, Steinitz, Boleslavsky variation632826.3%54.8%
C11French, Steinitz, Bradford attack30.0%33.3%
C11French, Steinitz, Gledhill attack4942.9%54.1%
C11French, Swiss variation13127.5%43.5%
C12French, MacCutcheon variation28629.4%51.7%
C12French, MacCutcheon, Bernstein variation185.6%52.8%
C12French, MacCutcheon, Bogolyubov variation616.7%75.0%
C12French, MacCutcheon, Chigorin variation4131.7%54.9%
C12French, MacCutcheon, Dr. Olland (Dutch) variation3228.1%57.8%
C12French, MacCutcheon, Duras variation366.7%66.7%
C12French, MacCutcheon, Grigoriev variation862.5%56.3%
C12French, MacCutcheon, Janowski variation17524.6%59.1%
C12French, MacCutcheon, Lasker variation44719.5%52.0%
C12French, MacCutcheon, Lasker variation, 8...g674724.6%54.6%
C12French, MacCutcheon, Tartakower variation450.0%50.0%
C12French, MacCutcheon, advance variation1241.7%54.2%
C13French, Albin-Alekhine-Chatard attack35722.7%57.3%
C13French, Albin-Alekhine-Chatard attack, Breyer variation9027.8%55.0%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation540.0%20.0%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation5326.4%56.6%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation922.2%88.9%
C13French, classical2412.5%52.1%
C13French, classical, Anderssen variation4621.7%39.1%
C13French, classical, Anderssen-Richter variation1315.4%30.8%
C13French, classical, Frankfurt variation1618.8%84.4%
C13French, classical, Tartakower variation2626.9%55.8%
C13French, classical, Vistaneckis (Nimzovich) variation40.0%75.0%
C14French, classical variation2114.3%21.4%
C14French, classical, Alapin variation7634.2%60.5%
C14French, classical, Pollock variation120.0%41.7%
C14French, classical, Rubinstein variation4719.1%54.3%
C14French, classical, Stahlberg variation450.0%75.0%
C14French, classical, Steinitz variation89526.1%57.4%
C14French, classical, Tarrasch variation650.0%75.0%
C15French, Winawer (Nimzovich) variation126030.7%53.5%
C15French, Winawer, Alekhine (Maroczy) gambit36531.0%56.0%
C15French, Winawer, Alekhine gambit70.0%71.4%
C15French, Winawer, Alekhine gambit, Alatortsev variation1100.0%50.0%
C15French, Winawer, Alekhine gambit, Kan variation20034.0%49.0%
C15French, Winawer, Kondratiyev variation1241.7%62.5%
C15French, Winawer, fingerslip variation3721.6%59.5%
C16French, Winawer, Petrosian variation34022.9%53.8%
C16French, Winawer, advance variation105423.0%56.5%
C17French, Winawer, advance variation9024.4%60.0%
C17French, Winawer, advance, 5.a374624.7%57.2%
C17French, Winawer, advance, Bogolyubov variation29528.8%56.4%
C17French, Winawer, advance, Rauzer variation540.0%40.0%
C17French, Winawer, advance, Russian variation6524.6%49.2%
C18French, Winawer, advance variation73320.3%57.2%
C18French, Winawer, classical variation76921.1%56.7%
C19French, Winawer, advance, 6...Ne775026.0%59.9%
C19French, Winawer, advance, Smyslov variation26225.2%58.8%
C19French, Winawer, advance, poisoned pawn variation505224.4%58.7%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation1450.0%53.6%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation120625.9%60.1%
C19French, Winawer, advance, positional main line279723.2%57.5%
C20Alapin's opening10823.1%48.6%
C20KP, Indian opening23426.9%50.2%
C20KP, King's head opening1631.3%59.4%
C20KP, Lopez opening6235.5%45.2%
C20KP, Mengarini's opening7817.9%56.4%
C20KP, Napoleon's opening1540.0%53.3%
C20KP, Patzer opening2330.4%58.7%
C20King's pawn game28920.4%52.1%
C21Centre game27533.1%58.7%
C21Danish gambit5827.6%55.2%
C21Danish gambit, Collijn defence30.0%33.3%
C21Danish gambit, Soerensen defence2821.4%53.6%
C21Halasz gambit4528.9%41.1%
C22Centre game1931.6%63.2%
C22Centre game, Berger variation36925.5%53.7%
C22Centre game, Charousek variation714.3%50.0%
C22Centre game, Hall variation425.0%87.5%
C22Centre game, Paulsen attack9230.4%50.0%
C23Bishop's opening38223.6%53.1%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation1711.8%64.7%
C23Bishop's opening, Classical variation11216.1%50.9%
C23Bishop's opening, Lewis counter-gambit633.3%50.0%
C23Bishop's opening, Lewis gambit540.0%40.0%
C23Bishop's opening, Philidor counter-attack10434.6%59.6%
C23Bishop's opening, Philidor variation1926.3%55.3%
C24Bishop's opening, Berlin defence132327.1%52.4%
C24Bishop's opening, Ponziani gambit1625.0%43.8%
C24Bishop's opening, Urusov gambit2321.7%41.3%
C24Bishop's opening, Urusov gambit, Panov variation616.7%58.3%
C25Vienna gambit6325.4%52.4%
C25Vienna game74025.5%52.0%
C25Vienna game, Max Lange defence6923.2%44.9%
C25Vienna, Hamppe-Allgaier gambit425.0%37.5%
C25Vienna, Paulsen variation56122.3%50.2%
C25Vienna, Pierce gambit147.1%32.1%
C25Vienna, Steinitz gambit540.0%60.0%
C25Vienna, Steinitz gambit, Fraser-Minckwitz variation714.3%50.0%
C25Vienna, Steinitz gambit, Zukertort defence1100.0%50.0%
C26Vienna game32525.2%53.8%
C26Vienna, Falkbeer variation14117.0%51.1%
C26Vienna, Mengarini variation3735.1%58.1%
C26Vienna, Paulsen-Mieses variation89430.3%50.6%
C27Boden-Kieseritsky gambit5813.8%50.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence633.3%33.3%
C27Vienna game25225.8%49.0%
C27Vienna, Alekhine variation9022.2%43.3%
C27Vienna, `Frankenstein-Dracula' variation4226.2%56.0%
C28Vienna game34329.7%52.5%
C29Vienna gambit21928.8%48.6%
C29Vienna gambit, Bardeleben variation1020.0%30.0%
C29Vienna gambit, Breyer variation12537.6%56.4%
C29Vienna gambit, Kaufmann variation1241.7%62.5%
C29Vienna gambit, Paulsen attack2326.1%52.2%
C29Vienna gambit, Steinitz variation3125.8%48.4%
C30KGD, 2...Nf66426.6%52.3%
C30KGD, Keene's defence3718.9%50.0%
C30KGD, Mafia defence10825.9%59.3%
C30KGD, Norwalde variation1428.6%50.0%
C30KGD, classical counter-gambit616.7%58.3%
C30KGD, classical variation22320.2%46.9%
C30KGD, classical, 4.c312625.4%61.9%
C30KGD, classical, Heath variation366.7%33.3%
C30KGD, classical, Marshall attack1020.0%50.0%
C30KGD, classical, Reti variation616.7%75.0%
C30KGD, classical, Soldatenkov variation1020.0%60.0%
C30KGD, classical, Svenonius variation520.0%50.0%
C30King's gambit17124.6%56.1%
C31KGD, Falkbeer counter-gambit6221.0%47.6%
C31KGD, Falkbeer, 3...e4540.0%60.0%
C31KGD, Falkbeer, 4.d31533.3%63.3%
C31KGD, Falkbeer, Morphy gambit540.0%60.0%
C31KGD, Falkbeer, Nimzovich variation70.0%42.9%
C31KGD, Falkbeer, Rubinstein variation450.0%50.0%
C31KGD, Falkbeer, Tartakower variation128.3%87.5%
C31KGD, Nimzovich counter-gambit5022.0%45.0%
C32KGD, Falkbeer, 5.de3129.0%53.2%
C32KGD, Falkbeer, Charousek gambit10.0%100.0%
C32KGD, Falkbeer, Keres variation1100.0%50.0%
C32KGD, Falkbeer, Reti variation366.7%33.3%
C32KGD, Falkbeer, Tarrasch variation10.0%100.0%
C32KGD, Falkbeer, main line, 7...Bf5977.8%38.9%
C33KGA, Breyer gambit2040.0%30.0%
C33KGA, Carrera (Basman) gambit3531.4%41.4%
C33KGA, Keres (Mason-Steinitz) gambit439.3%44.2%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit229.1%45.5%
C33KGA, Lopez-Gianutio counter-gambit, Hein variation250.0%75.0%
C33KGA, Villemson (Steinitz) gambit728.6%42.9%
C33KGA, bishop's gambit11112.6%52.3%
C33KGA, bishop's gambit, Anderssen variation616.7%75.0%
C33KGA, bishop's gambit, Bledow variation3831.6%42.1%
C33KGA, bishop's gambit, Boden defence714.3%35.7%
C33KGA, bishop's gambit, Bogolyubov variation319.7%46.8%
C33KGA, bishop's gambit, Boren-Svenonius variation30.0%66.7%
C33KGA, bishop's gambit, Cozio (Morphy) defence2441.7%37.5%
C33KGA, bishop's gambit, Jaenisch variation9724.7%51.5%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit3125.8%29.0%
C33KGA, bishop's gambit, Maurian defence2020.0%55.0%
C33KGA, bishop's gambit, McDonnell attack250.0%75.0%
C33KGA, bishop's gambit, Morphy variation3525.7%44.3%
C33KGA, bishop's gambit, Paulsen attack812.5%43.8%
C33KGA, bishop's gambit, Ruy Lopez defence540.0%40.0%
C33KGA, bishop's gambit, Steinitz defence7429.7%44.6%
C33KGA, bishop's gambit, classical defence119.1%22.7%
C33King's gambit accepted922.2%44.4%
C34KGA, Becker defence4520.0%41.1%
C34KGA, Bonsch-Osmolovsky variation4425.0%42.0%
C34KGA, Fischer defence20220.8%49.0%
C34KGA, Gianutio counter-gambit10.0%0.0%
C34KGA, Schallop defence9318.3%52.2%
C34King's knight's gambit6114.8%48.4%
C35KGA, Cunningham defence9219.6%48.9%
C35KGA, Cunningham, Bertin gambit20.0%50.0%
C35KGA, Cunningham, Euwe defence6127.9%50.0%
C36KGA, Abbazia defence (classical defence, modern defence[!])2520.0%54.0%
C36KGA, Abbazia defence, Botvinnik variation20.0%100.0%
C36KGA, Abbazia defence, modern variation17330.6%43.6%
C37KGA, Blachly gambit1816.7%36.1%
C37KGA, Lolli gambit (wild Muzio gambit)1100.0%50.0%
C37KGA, MacDonnell gambit250.0%75.0%
C37KGA, Muzio gambit119.1%13.6%
C37KGA, Quaade gambit128.3%12.5%
C37KGA, Rosentreter gambit333.3%83.3%
C37KGA, Salvio gambit1020.0%50.0%
C37KGA, Salvio gambit, Anderssen counter-attack20.0%50.0%
C37KGA, Silberschmidt gambit20.0%0.0%
C37KGA, double Muzio gambit10.0%0.0%
C38KGA, Hanstein gambit2119.0%38.1%
C38KGA, Philidor gambit40.0%25.0%
C38KGA, Philidor gambit, Schultz variation50.0%20.0%
C38King's knight's gambit911.1%50.0%
C39KGA, Allgaier gambit10.0%100.0%
C39KGA, Kieseritsky, Berlin defence5313.2%36.8%
C39KGA, Kieseritsky, Berlin defence, 6.Bc44928.6%49.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%
C39KGA, Kieseritsky, Kolisch defence10433.7%50.5%
C39KGA, Kieseritsky, Neumann defence425.0%62.5%
C39KGA, Kieseritsky, Paulsen defence540.0%40.0%
C39KGA, Kieseritsky, Rice gambit1952.6%26.3%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence1450.0%60.7%
C39King's knight's gambit10.0%100.0%
C40Damiano's defence2927.6%55.2%
C40Greco defence9017.8%64.4%
C40Gunderam defence23521.7%63.6%
C40King's knight opening616.7%41.7%
C40Latvian counter-gambit15125.2%60.9%
C40Latvian gambit, 3.Bc4633.3%66.7%
C40Latvian, Fraser defence128.3%62.5%
C40Latvian, Polerio variation60.0%33.3%
C40QP counter-gambit (elephant gambit)17117.5%62.0%
C40QP counter-gambit, Maroczy gambit6123.0%62.3%
C41Philidor's defence52329.4%56.6%
C41Philidor, Boden variation1910.5%52.6%
C41Philidor, Hanham variation6634.8%65.9%
C41Philidor, Hanham, Delmar variation850.0%75.0%
C41Philidor, Hanham, Kmoch variation20.0%50.0%
C41Philidor, Hanham, Krause variation2623.1%69.2%
C41Philidor, Hanham, Schlechter variation6325.4%61.9%
C41Philidor, Hanham, Steiner variation3330.3%66.7%
C41Philidor, Improved Hanham variation124027.2%57.1%
C41Philidor, Larsen variation7724.7%68.2%
C41Philidor, Lopez counter-gambit1513.3%80.0%
C41Philidor, Nimzovich (Jaenisch) variation8733.3%47.7%
C41Philidor, Nimzovich variation2128.6%57.1%
C41Philidor, Nimzovich, Klein variation128.3%62.5%
C41Philidor, Nimzovich, Larobok variation5040.0%34.0%
C41Philidor, Nimzovich, Rellstab variation9033.3%64.4%
C41Philidor, Nimzovich, Sokolsky variation520.0%50.0%
C41Philidor, Nimzovich, Sozin variation4517.8%48.9%
C41Philidor, Paulsen attack30.0%100.0%
C41Philidor, Philidor counter-gambit3016.7%51.7%
C41Philidor, Philidor counter-gambit, Zukertort variation1833.3%55.6%
C41Philidor, Philidor counter-gambit, del Rio attack540.0%60.0%
C41Philidor, Steinitz variation1421.4%53.6%
C41Philidor, exchange variation119825.1%57.9%
C42Petrov three knights game50127.5%54.1%
C42Petrov's defence93124.7%53.8%
C42Petrov, Cochrane gambit4314.0%46.5%
C42Petrov, Cozio (Lasker) attack27932.3%51.6%
C42Petrov, Damiano variation3930.8%53.8%
C42Petrov, French attack1315.4%69.2%
C42Petrov, Italian variation15519.4%51.0%
C42Petrov, Kaufmann attack28032.5%58.4%
C42Petrov, Nimzovich attack71733.5%54.5%
C42Petrov, Paulsen attack24527.3%45.9%
C42Petrov, classical attack182630.6%57.0%
C42Petrov, classical attack, Berger variation1936.8%55.3%
C42Petrov, classical attack, Chigorin variation96834.3%53.5%
C42Petrov, classical attack, Jaenisch variation326235.1%56.4%
C42Petrov, classical attack, Krause variation1100.0%50.0%
C42Petrov, classical attack, Marshall variation240229.4%55.3%
C42Petrov, classical attack, Mason variation8839.8%61.9%
C42Petrov, classical attack, Tarrasch variation933.3%83.3%
C42Petrov, classical attack, close variation20329.6%55.2%
C43Petrov, Urusov gambit468.7%45.7%
C43Petrov, modern (Steinitz) attack15125.2%60.3%
C43Petrov, modern attack, Bardeleben variation1421.4%67.9%
C43Petrov, modern attack, Steinitz variation1127.3%59.1%
C43Petrov, modern attack, Symmetrical variation407131.2%53.6%
C43Petrov, modern attack, Trifunovic variation8534.1%51.2%
C43Petrov, modern attack, main line46631.8%58.6%
C44Dresden opening5820.7%46.6%
C44Inverted Hanham4524.4%50.0%
C44Inverted Hungarian4928.6%49.0%
C44King's pawn game6926.1%47.8%
C44Konstantinopolsky opening2213.6%43.2%
C44Ponziani counter-gambit18221.4%52.5%
C44Ponziani counter-gambit, Cordel variation10.0%100.0%
C44Ponziani counter-gambit, Schmidt attack10.0%0.0%
C44Ponziani opening16325.8%52.8%
C44Ponziani, Caro variation10738.3%48.1%
C44Ponziani, Jaenisch counter-attack66531.6%46.5%
C44Ponziani, Leonhardt variation5440.7%50.0%
C44Ponziani, Reti variation166.3%53.1%
C44Ponziani, Romanishin variation1060.0%60.0%
C44Ponziani, Steinitz variation9638.5%53.6%
C44Scotch gambit9526.3%46.8%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack1100.0%50.0%
C44Scotch gambit, Benima defence5927.1%52.5%
C44Scotch gambit, Dubois-Reti defence60831.3%50.0%
C44Scotch opening4526.7%42.2%
C44Scotch, Goering gambit17430.5%49.7%
C44Scotch, Goering gambit, Bardeleben variation1020.0%40.0%
C44Scotch, Lolli variation7718.2%53.2%
C44Scotch, Relfsson gambit ('MacLopez')4012.5%46.3%
C44Tayler opening728.6%28.6%
C45Scotch game343231.4%53.2%
C45Scotch, Blackburne attack1957.9%50.0%
C45Scotch, Blumenfeld attack1040.0%20.0%
C45Scotch, Ghulam Kassim variation333.3%83.3%
C45Scotch, Horwitz attack3036.7%55.0%
C45Scotch, Meitner variation4235.7%53.6%
C45Scotch, Mieses variation202733.1%51.0%
C45Scotch, Paulsen attack1428.6%28.6%
C45Scotch, Potter variation26835.4%47.6%
C45Scotch, Pulling counter-attack2520.0%58.0%
C45Scotch, Romanishin variation2931.0%43.1%
C45Scotch, Rosenthal variation10.0%0.0%
C45Scotch, Schmidt variation97339.8%50.6%
C45Scotch, Steinitz variation5223.1%48.1%
C45Scotch, Tartakower variation1540.0%60.0%
C46Four knights game88428.5%50.0%
C46Four knights, Gunsberg variation11729.1%42.7%
C46Four knights, Italian variation38029.5%48.2%
C46Four knights, Schultze-Mueller gambit2429.2%39.6%
C46Three knights game25523.9%52.4%
C46Three knights, Schlechter variation1338.5%65.4%
C46Three knights, Steinitz variation15518.7%53.2%
C46Three knights, Steinitz, Rosenthal variation1361.5%61.5%
C47Four knights, Belgrade gambit23626.7%42.6%
C47Four knights, Scotch variation4436.4%61.4%
C47Four knights, Scotch, 4...exd477436.0%50.8%
C47Four knights, Scotch, Krause variation17733.3%55.1%
C48Four knights, Bardeleben variation728.6%57.1%
C48Four knights, Marshall variation1118.2%63.6%
C48Four knights, Ranken variation2825.0%44.6%
C48Four knights, Rubinstein counter-gambit146326.0%53.9%
C48Four knights, Rubinstein counter-gambit, 5.Be21323.1%57.7%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1533.3%56.7%
C48Four knights, Rubinstein counter-gambit, Henneberger variation4634.8%63.0%
C48Four knights, Rubinstein counter-gambit, exchange variation12840.6%48.4%
C48Four knights, Spanish variation32127.1%51.2%
C48Four knights, Spanish, classical defence15227.6%52.0%
C48Four knights, Spielmann variation633.3%50.0%
C49Four knights13135.1%50.4%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
C49Four knights, Janowski variation2138.1%38.1%
C49Four knights, Nimzovich (Paulsen) variation7145.1%54.9%
C49Four knights, Svenonius variation30.0%66.7%
C49Four knights, double Ruy Lopez31142.1%56.4%
C49Four knights, symmetrical variation48031.7%49.8%
C49Four knights, symmetrical, Blake variation475.0%62.5%
C49Four knights, symmetrical, Capablanca variation3342.4%57.6%
C49Four knights, symmetrical, Maroczy system8739.1%51.7%
C49Four knights, symmetrical, Metger unpin49035.1%52.4%
C49Four knights, symmetrical, Pillsbury variation4725.5%42.6%
C49Four knights, symmetrical, Tarrasch variation540.0%60.0%
C50Giuoco Pianissimo186329.6%52.1%
C50Giuoco Pianissimo, Canal variation23230.2%51.3%
C50Giuoco Pianissimo, Italian four knights variation50028.4%55.4%
C50Giuoco Piano103228.3%49.9%
C50Giuoco Piano, four knights variation13226.5%51.1%
C50Hungarian defence11935.3%54.6%
C50King's pawn game36422.5%54.9%
C50Rousseau gambit50.0%60.0%
C51Evans gambit60.0%0.0%
C51Evans gambit declined2138.1%42.9%
C51Evans gambit declined, 5.a410529.5%47.1%
C51Evans gambit declined, Cordel variation1330.8%30.8%
C51Evans gambit declined, Showalter variation1020.0%50.0%
C51Evans gambit, 5...Be7771.4%35.7%
C51Evans gambit, Cordel variation10026.0%46.0%
C51Evans gambit, Goering attack1127.3%59.1%
C51Evans gambit, Morphy attack1233.3%58.3%
C51Evans gambit, Paulsen variation3611.1%44.4%
C51Evans gambit, Steinitz variation10.0%100.0%
C51Evans gambit, Stone-Ware variation5722.8%44.7%
C51Evans gambit, normal variation1233.3%41.7%
C52Evans gambit23227.2%39.9%
C52Evans gambit, Alapin-Steinitz variation450.0%75.0%
C52Evans gambit, Lasker defence1040.0%50.0%
C52Evans gambit, Levenfish variation250.0%25.0%
C52Evans gambit, Richardson attack616.7%25.0%
C52Evans gambit, Tartakower attack9621.9%51.6%
C52Evans gambit, Waller attack616.7%41.7%
C52Evans gambit, compromised defence2611.5%51.9%
C52Evans gambit, compromised defence, Paulsen variation1625.0%68.8%
C53Giuoco Piano400227.9%52.9%
C53Giuoco Piano, Anderssen variation2152.4%54.8%
C53Giuoco Piano, Bird's attack12925.6%51.6%
C53Giuoco Piano, LaBourdonnais variation1338.5%57.7%
C53Giuoco Piano, Mestel variation250.0%75.0%
C53Giuoco Piano, Tarrasch variation425.0%62.5%
C53Giuoco Piano, centre-holding variation2722.2%63.0%
C53Giuoco Piano, close variation3823.7%51.3%
C54Giuoco Piano14125.5%53.9%
C54Giuoco Piano, Greco variation1100.0%50.0%
C54Giuoco Piano, Greco's attack425.0%37.5%
C54Giuoco Piano, Moeller (Therkatz) attack2544.0%38.0%
C55Giuoco piano1100.0%50.0%
C55Two knights defence14827.7%48.3%
C55Two knights defence (Modern bishop's opening)132029.5%56.5%
C55Two knights defence, Keidanz variation1100.0%50.0%
C55Two knights defence, Perreux variation3129.0%50.0%
C55Two knights, Max Lange attack7723.4%46.8%
C55Two knights, Max Lange attack, Marshall variation450.0%50.0%
C55Two knights, Max Lange attack, Schlechter variation6930.4%47.1%
C55Two knights, Max Lange attack, Steinitz variation812.5%56.3%
C56Two knights defence7634.2%50.0%
C56Two knights defence, Canal variation2748.1%42.6%
C57Two knights defence5922.0%38.1%
C57Two knights defence, Fegatello attack7436.5%46.6%
C57Two knights defence, Fegatello attack, Leonhardt variation30.0%0.0%
C57Two knights defence, Fegatello attack, Polerio defence10.0%0.0%
C57Two knights defence, Fritz variation616.7%58.3%
C57Two knights defence, Fritz, Gruber variation1735.3%52.9%
C57Two knights defence, Lolli attack1921.1%57.9%
C57Two knights defence, Pincus variation742.9%64.3%
C57Two knights defence, Ulvestad variation3321.2%56.1%
C57Two knights defence, Wilkes Barre (Traxler) variation7516.0%62.7%
C58Two knights defence20223.3%55.7%
C58Two knights defence, Blackburne variation450.0%75.0%
C58Two knights defence, Bogolyubov variation6521.5%56.9%
C58Two knights defence, Colman variation90.0%77.8%
C58Two knights defence, Kieseritsky variation3228.1%54.7%
C58Two knights defence, Paoli variation1118.2%81.8%
C58Two knights defence, Yankovich variation540.0%40.0%
C59Two knights defence17726.6%46.6%
C59Two knights defence, Goering variation20.0%50.0%
C59Two knights defence, Knorre variation1100.0%50.0%
C59Two knights defence, Steinitz variation16425.6%59.8%
C60Ruy Lopez (Spanish opening)15122.5%51.7%
C60Ruy Lopez, Brentano defence616.7%58.3%
C60Ruy Lopez, Cozio defence36826.1%56.8%
C60Ruy Lopez, Cozio defence, Paulsen variation3036.7%51.7%
C60Ruy Lopez, Lucena defence2321.7%45.7%
C60Ruy Lopez, Nuernberg variation1936.8%44.7%
C60Ruy Lopez, Vinogradov variation933.3%50.0%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence44734.5%52.3%
C61Ruy Lopez, Bird's defence29526.4%58.3%
C61Ruy Lopez, Bird's defence, Paulsen variation1533.3%50.0%
C62Ruy Lopez, old Steinitz defence61527.6%54.6%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack2817.9%69.6%
C62Ruy Lopez, old Steinitz defence, semi-Duras variation30.0%100.0%
C63Ruy Lopez, Schliemann defence34126.1%57.3%
C63Ruy Lopez, Schliemann defence, Berger variation64733.4%56.0%
C64Ruy Lopez, Cordel gambit4727.7%73.4%
C64Ruy Lopez, classical (Cordel) defence66631.8%51.2%
C64Ruy Lopez, classical defence, 4.c342127.1%52.0%
C64Ruy Lopez, classical defence, Benelux variation 56133.3%50.9%
C64Ruy Lopez, classical defence, Boden variation1100.0%50.0%
C64Ruy Lopez, classical defence, Charousek variation1717.6%67.6%
C65Ruy Lopez, Berlin defence409629.3%51.6%
C65Ruy Lopez, Berlin defence, 4.O-O17524.0%61.1%
C65Ruy Lopez, Berlin defence, Anderssen variation616.7%8.3%
C65Ruy Lopez, Berlin defence, Beverwijk variation53230.3%52.7%
C65Ruy Lopez, Berlin defence, Duras variation2931.0%46.6%
C65Ruy Lopez, Berlin defence, Kaufmann variation1118.2%45.5%
C65Ruy Lopez, Berlin defence, Mortimer variation175.9%67.6%
C65Ruy Lopez, Berlin defence, Nyholm attack8835.2%54.0%
C66Ruy Lopez, Berlin defence, 4.O-O, d610041.0%52.5%
C66Ruy Lopez, Berlin defence, hedgehog variation15238.2%53.3%
C66Ruy Lopez, closed Berlin defence, Bernstein variation3438.2%45.6%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%75.0%
C66Ruy Lopez, closed Berlin defence, Showalter variation6349.2%59.5%
C66Ruy Lopez, closed Berlin defence, Wolf variation12541.6%55.2%
C67Ruy Lopez, Berlin defence, Cordel variation3743.2%51.4%
C67Ruy Lopez, Berlin defence, Minckwitz variation5339.6%63.2%
C67Ruy Lopez, Berlin defence, Pillsbury variation366.7%33.3%
C67Ruy Lopez, Berlin defence, Rio de Janeiro variation850.0%75.0%
C67Ruy Lopez, Berlin defence, Rosenthal variation3542.9%55.7%
C67Ruy Lopez, Berlin defence, Trifunovic variation30.0%100.0%
C67Ruy Lopez, Berlin defence, Winawer attack1070.0%45.0%
C67Ruy Lopez, Berlin defence, Zukertort variation1457.1%42.9%
C67Ruy Lopez, Berlin defence, open variation723234.3%52.5%
C67Ruy Lopez, open Berlin defence, 5...Be711333.6%55.8%
C67Ruy Lopez, open Berlin defence, Showalter variation425.0%62.5%
C67Ruy Lopez, open Berlin defence, l'Hermet variation8932.6%44.4%
C68Ruy Lopez, exchange variation32025.6%56.9%
C68Ruy Lopez, exchange, Alekhine variation7431.1%43.9%
C68Ruy Lopez, exchange, Keres variation24337.0%51.4%
C68Ruy Lopez, exchange, Romanovsky variation1118.2%45.5%
C69Ruy Lopez, exchange variation, 5.O-O58628.0%52.4%
C69Ruy Lopez, exchange variation, Alapin gambit14331.5%51.4%
C69Ruy Lopez, exchange, Bronstein variation49931.1%51.6%
C69Ruy Lopez, exchange, Gligoric variation57133.8%53.9%
C70Ruy Lopez7628.9%52.6%
C70Ruy Lopez, Alapin's defence deferred70.0%42.9%
C70Ruy Lopez, Caro variation8129.6%53.1%
C70Ruy Lopez, Classical defence deferred52026.3%51.8%
C70Ruy Lopez, Cozio defence deferred12931.8%51.6%
C70Ruy Lopez, Graz variation933.3%61.1%
C70Ruy Lopez, Schliemann defence deferred4316.3%54.7%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation25226.6%54.6%
C70Ruy Lopez, fianchetto defence deferred1338.5%73.1%
C71Ruy Lopez, modern Steinitz defence13729.2%51.1%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation17331.8%51.7%
C71Ruy Lopez, modern Steinitz defence, Three knights variation2825.0%58.9%
C72Ruy Lopez, modern Steinitz defence, 5.O-O47629.6%55.4%
C73Ruy Lopez, modern Steinitz defence, Alapin variation27625.4%55.4%
C73Ruy Lopez, modern Steinitz defence, Richter variation22830.7%50.4%
C74Ruy Lopez, Siesta, Kopayev variation12328.5%51.6%
C74Ruy Lopez, modern Steinitz defence6541.5%56.2%
C74Ruy Lopez, modern Steinitz defence, siesta variation4425.0%48.9%
C75Ruy Lopez, modern Steinitz defence28327.9%57.8%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation14132.6%58.9%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation57727.9%50.9%
C77Ruy Lopez, Anderssen variation132929.5%49.5%
C77Ruy Lopez, Morphy defence40232.6%54.6%
C77Ruy Lopez, Morphy defence, Duras variation9331.2%47.8%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)19031.1%50.8%
C77Ruy Lopez, Wormald (Alapin) attack63932.6%51.0%
C77Ruy Lopez, Wormald attack, Gruenfeld variation366.7%66.7%
C77Ruy Lopez, four knights (Tarrasch) variation29330.0%55.3%
C78Ruy Lopez, ...b5 & ...d68327.7%47.6%
C78Ruy Lopez, 5.O-O244131.5%55.1%
C78Ruy Lopez, Archangelsk (counterthrust) variation326829.6%54.1%
C78Ruy Lopez, Moeller defence77730.0%51.9%
C78Ruy Lopez, Rabinovich variation10.0%100.0%
C78Ruy Lopez, Wing attack1947.4%60.5%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)34232.5%52.2%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1844.4%50.0%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1216.7%66.7%
C80Ruy Lopez, open (Tarrasch) defence12339.0%49.6%
C80Ruy Lopez, open, 6.d44727.7%60.6%
C80Ruy Lopez, open, 7.Bb348930.7%51.7%
C80Ruy Lopez, open, 8...Be6131231.8%46.2%
C80Ruy Lopez, open, 8.de1520.0%56.7%
C80Ruy Lopez, open, Berger variation666.7%33.3%
C80Ruy Lopez, open, Bernstein variation94635.6%58.1%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit1163.6%68.2%
C80Ruy Lopez, open, Friess attack850.0%37.5%
C80Ruy Lopez, open, Harksen gambit50.0%60.0%
C80Ruy Lopez, open, Richter variation30.0%33.3%
C80Ruy Lopez, open, Riga variation4030.0%57.5%
C80Ruy Lopez, open, Schlechter defence2339.1%32.6%
C80Ruy Lopez, open, Tartakower variation1136.4%63.6%
C80Ruy Lopez, open, Zukertort variation714.3%50.0%
C81Ruy Lopez, open, Howell attack9537.9%57.9%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1752.9%61.8%
C82Ruy Lopez, open, 9.c3616.7%58.3%
C82Ruy Lopez, open, Berlin variation1833.3%61.1%
C82Ruy Lopez, open, Dilworth variation7728.6%54.5%
C82Ruy Lopez, open, Italian variation8831.8%61.4%
C82Ruy Lopez, open, Motzko attack8036.3%51.9%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation520.0%30.0%
C82Ruy Lopez, open, St. Petersburg variation27638.0%59.6%
C83Ruy Lopez, open, 9...Be7, 10.Re12030.0%55.0%
C83Ruy Lopez, open, Breslau variation50.0%80.0%
C83Ruy Lopez, open, Malkin variation1330.8%69.2%
C83Ruy Lopez, open, classical defence18039.4%57.5%
C84Ruy Lopez, closed defence115131.8%51.9%
C84Ruy Lopez, closed, centre attack21831.7%50.2%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)151830.8%53.2%
C86Ruy Lopez, Worrall attack9228.3%58.7%
C86Ruy Lopez, Worrall attack, sharp line27432.5%49.5%
C86Ruy Lopez, Worrall attack, solid line24830.2%51.0%
C87Ruy Lopez, closed, Averbach variation38729.7%57.2%
C88Ruy Lopez, Noah's ark trap50.0%60.0%
C88Ruy Lopez, Trajkovic counter-attack28627.3%53.1%
C88Ruy Lopez, closed404827.3%48.3%
C88Ruy Lopez, closed, 7...O-O690430.1%51.8%
C88Ruy Lopez, closed, 7...d6, 8.d412623.8%38.1%
C88Ruy Lopez, closed, 8.c34427.3%50.0%
C88Ruy Lopez, closed, Balla variation2937.9%63.8%
C88Ruy Lopez, closed, anti-Marshall 8.a4155828.3%51.8%
C89Ruy Lopez, Marshall counter-attack263333.9%51.1%
C89Ruy Lopez, Marshall counter-attack, 11...c685835.8%49.5%
C89Ruy Lopez, Marshall, Herman Steiner variation296.9%48.3%
C89Ruy Lopez, Marshall, Kevitz variation1428.6%42.9%
C89Ruy Lopez, Marshall, main line, 12.d2d4100726.7%56.1%
C89Ruy Lopez, Marshall, main line, 14...Qh374541.9%49.0%
C89Ruy Lopez, Marshall, main line, Spassky variation1100.0%50.0%
C90Ruy Lopez, closed (with ...d6)238527.6%49.2%
C90Ruy Lopez, closed, Lutikov variation2650.0%51.9%
C90Ruy Lopez, closed, Pilnik variation304326.1%52.3%
C90Ruy Lopez, closed, Suetin variation5326.4%47.2%
C91Ruy Lopez, closed, 9.d4373026.8%55.7%
C91Ruy Lopez, closed, Bogolyubov variation607831.9%51.8%
C92Ruy Lopez, closed, 9.h355426.7%56.0%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)346632.3%53.6%
C92Ruy Lopez, closed, Keres (9...a5) variation4723.4%58.5%
C92Ruy Lopez, closed, Kholmov variation19126.7%59.4%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation30733.2%64.5%
C93Ruy Lopez, closed, Smyslov defence24433.6%57.0%
C94Ruy Lopez, closed, Breyer defence12237.7%53.3%
C95Ruy Lopez, closed, Breyer, Borisenko variation231430.2%56.4%
C95Ruy Lopez, closed, Breyer, Gligoric variation6819.1%65.4%
C95Ruy Lopez, closed, Breyer, Simagin variation7742.9%63.0%
C96Ruy Lopez, closed (10...c5)118629.7%58.3%
C96Ruy Lopez, closed (8...Na5)5225.0%52.9%
C96Ruy Lopez, closed, Borisenko defence8127.2%58.0%
C96Ruy Lopez, closed, Keres (...Nd7) defence32137.7%61.2%
C96Ruy Lopez, closed, Rossolimo defence520.0%70.0%
C97Ruy Lopez, closed, Chigorin defence169922.8%59.9%
C98Ruy Lopez, closed, Chigorin, 12...Nc625925.9%63.9%
C98Ruy Lopez, closed, Chigorin, Rauzer attack10.0%0.0%
C99Ruy Lopez, closed, Chigorin, 12...c5d4206434.3%59.0%
D00Blackmar gambit8229.3%42.7%
D00Blackmar-Diemer gambit3116.1%50.0%
D00Blackmar-Diemer, Euwe defence110.0%45.5%
D00Levitsky attack (Queen's bishop attack)255024.5%49.8%
D00Queen's pawn game193824.9%51.4%
D00Queen's pawn, Chigorin variation146921.5%51.9%
D00Queen's pawn, Mason variation184124.0%51.9%
D00Queen's pawn, Mason variation, Steinitz counter-gambit55630.2%50.0%
D00Queen's pawn, stonewall attack10025.0%49.5%
D01Richter-Veresov attack116926.3%46.7%
D01Richter-Veresov attack, Richter variation5334.0%37.7%
D01Richter-Veresov attack, Veresov variation5520.0%55.5%
D02Queen's bishop game336027.8%50.9%
D02Queen's pawn game1361927.4%53.0%
D02Queen's pawn game, Chigorin variation156623.9%54.6%
D02Queen's pawn game, Krause variation82333.4%51.7%
D03Torre attack (Tartakower variation)91623.3%50.6%
D04Queen's pawn game205930.1%52.9%
D05Colle system79030.4%52.4%
D05Queen's pawn game181528.4%53.7%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation75432.0%55.6%
D05Queen's pawn game, Zukertort variation3327.3%59.1%
D06QGD, Grau (Sahovic) defence123924.5%56.4%
D06QGD, Marshall defence31727.1%59.0%
D06QGD, symmetrical (Austrian) defence9427.7%54.3%
D06Queen's Gambit2119.0%57.1%
D07QGD, Chigorin defence216827.6%57.4%
D07QGD, Chigorin defence, Janowski variation53224.4%61.5%
D08QGD, Albin counter-gambit17836.0%55.6%
D08QGD, Albin counter-gambit, Alapin variation2334.8%60.9%
D08QGD, Albin counter-gambit, Balogh variation10.0%0.0%
D08QGD, Albin counter-gambit, Janowski variation10.0%100.0%
D08QGD, Albin counter-gambit, Krenosz variation250.0%75.0%
D09QGD, Albin counter-gambit, 5.g38528.2%54.1%
D10QGD Slav defence484529.7%54.5%
D10QGD Slav defence, Alekhine variation36820.7%54.9%
D10QGD Slav defence, exchange variation230731.0%51.4%
D10QGD Slav, Winawer counter-gambit29126.8%57.4%
D11QGD Slav, 3.Nf3462528.2%54.1%
D11QGD Slav, 4.e3433629.9%55.2%
D11QGD Slav, Breyer variation24327.2%52.3%
D12QGD Slav, 4.e3 Bf5765628.2%54.3%
D12QGD Slav, Amsterdam variation7335.6%47.9%
D12QGD Slav, Landau variation1100.0%50.0%
D12QGD Slav, exchange variation41224.5%53.0%
D13QGD Slav, exchange variation131131.7%53.4%
D14QGD Slav, exchange variation, 6.Bf4 Bf571831.2%51.1%
D14QGD Slav, exchange, Trifunovic variation19339.9%50.0%
D15QGD Slav accepted27229.8%52.8%
D15QGD Slav, 4.Nc3384928.5%52.6%
D15QGD Slav, 5.e3 (Alekhine variation)27626.1%50.0%
D15QGD Slav, Schlechter variation29928.4%55.4%
D15QGD Slav, Slav gambit25926.6%47.3%
D15QGD Slav, Suechting variation8220.7%54.3%
D15QGD Slav, Tolush-Geller gambit29028.3%44.5%
D16QGD Slav accepted, Alapin variation22822.4%68.6%
D16QGD Slav, Smyslov variation12227.0%58.6%
D16QGD Slav, Soultanbeieff variation24239.3%56.4%
D16QGD Slav, Steiner variation35229.3%58.7%
D17QGD Slav, Carlsbad variation67932.5%52.4%
D17QGD Slav, Czech defence86835.0%53.9%
D17QGD Slav, Krause attack82626.2%58.2%
D17QGD Slav, Wiesbaden variation65827.5%58.4%
D18QGD Slav, Dutch variation86031.9%57.9%
D18QGD Slav, Dutch, Lasker variation2810.7%66.1%
D19QGD Slav, Dutch variation265429.0%56.4%
D19QGD Slav, Dutch variation, main line47634.7%52.0%
D20QGA, 3.e4383028.7%56.0%
D20QGA, Linares variation6529.2%51.5%
D20Queen's gambit accepted192330.3%55.3%
D21QGA, 3.Nf3111325.7%55.3%
D21QGA, Alekhine defense, Borisenko-Furman variation3330.3%39.4%
D21QGA, Ericson variation2842.9%53.6%
D22QGA, Alekhine defence34434.6%56.0%
D22QGA, Alekhine defence, Alatortsev variation1050.0%65.0%
D22QGA, Haberditz variation19732.5%59.9%
D23QGA, Mannheim variation47330.7%54.7%
D23Queen's gambit accepted18129.8%49.7%
D24QGA, 4.Nc330832.1%54.7%
D24QGA, Bogolyubov variation22916.6%48.0%
D25QGA, 4.e354428.9%57.3%
D25QGA, Flohr variation6627.3%59.1%
D25QGA, Janowsky-Larsen variation69028.8%56.6%
D25QGA, Smyslov variation19930.7%58.0%
D26QGA, 4...e683532.2%53.0%
D26QGA, classical variation127234.0%54.6%
D26QGA, classical variation, 6.O-O38735.4%57.8%
D26QGA, classical, Furman variation475.0%37.5%
D26QGA, classical, Steinitz variation9750.5%60.3%
D27QGA, classical, 6...a6472435.7%53.8%
D27QGA, classical, Geller variation7829.5%44.2%
D27QGA, classical, Rubinstein variation377234.0%55.2%
D28QGA, classical, 7...b526734.1%54.9%
D28QGA, classical, 7.Qe213042.3%55.8%
D29QGA, classical, 8...Bb777531.4%47.4%
D29QGA, classical, Smyslov variation9528.4%55.3%
D30QGD228532.2%52.3%
D30QGD Slav87430.9%53.3%
D30QGD Slav, Semmering variation15232.9%48.0%
D30QGD, Capablanca variation6020.0%46.7%
D30QGD, Capablanca-Duras variation81628.3%52.4%
D30QGD, Hastings variation74635.4%50.5%
D30QGD, Spielmann variation450.0%75.0%
D30QGD, Stonewall variation333.3%83.3%
D30QGD, Vienna variation97840.3%51.9%
D30Queen's gambit declined605530.3%53.4%
D31QGD, 3.Nc387227.9%54.8%
D31QGD, Alapin variation4216.7%41.7%
D31QGD, Charousek (Petrosian) variation168127.7%53.4%
D31QGD, Janowski variation17838.8%56.5%
D31QGD, semi-Slav125830.3%54.1%
D31QGD, semi-Slav, Abrahams variation65730.3%44.7%
D31QGD, semi-Slav, Junge variation2817.9%62.5%
D31QGD, semi-Slav, Koomen variation450.0%50.0%
D31QGD, semi-Slav, Marshall gambit249628.7%54.5%
D31QGD, semi-Slav, Noteboom variation67728.2%52.2%
D32QGD, Tarrasch defence41531.3%54.5%
D32QGD, Tarrasch defence, 4.cd ed2828.6%46.4%
D32QGD, Tarrasch defence, Marshall gambit1936.8%50.0%
D32QGD, Tarrasch defence, Tarrasch gambit728.6%42.9%
D32QGD, Tarrasch, von Hennig-Schara gambit8330.1%59.6%
D33QGD, Tarrasch, Folkestone (Swedish) variation5334.0%58.5%
D33QGD, Tarrasch, Prague variation12334.1%61.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system1323.1%50.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation1100.0%50.0%
D33QGD, Tarrasch, Wagner variation2429.2%60.4%
D34QGD, Tarrasch, Bogolyubov variation540.0%20.0%
D34QGD, Tarrasch, Prague variation, 7...Be737430.7%59.5%
D34QGD, Tarrasch, Prague variation, 9.Bg5109338.5%57.9%
D34QGD, Tarrasch, Prague variation, Normal position110334.2%58.4%
D34QGD, Tarrasch, Reti variation6038.3%54.2%
D34QGD, Tarrasch, Stoltz variation20.0%100.0%
D35QGD, 3...Nf618731.0%43.9%
D35QGD, Harrwitz attack7829.5%51.9%
D35QGD, exchange variation35731.1%55.6%
D35QGD, exchange, Saemisch variation28528.1%53.0%
D35QGD, exchange, chameleon variation1827.8%63.9%
D35QGD, exchange, positional line223328.1%53.1%
D35QGD, exchange, positional line, 5...c6159628.2%55.6%
D36QGD, exchange, positional line, 6.Qc234333.5%50.9%
D37QGD, 4.Nf3625431.9%53.2%
D37QGD, classical variation (5.Bf4)745033.1%53.3%
D38QGD, Ragozin variation708732.4%53.6%
D39QGD, Ragozin, Vienna variation143636.0%50.8%
D40QGD, Semi-Tarrasch defence99333.4%51.8%
D40QGD, Semi-Tarrasch defence, Pillsbury variation4537.8%52.2%
D40QGD, Semi-Tarrasch, symmetrical variation5933.9%49.2%
D41QGD, Semi-Tarrasch with e334035.6%54.9%
D41QGD, Semi-Tarrasch, 5.cd89734.6%57.5%
D41QGD, Semi-Tarrasch, Kmoch variation2748.1%61.1%
D41QGD, Semi-Tarrasch, San Sebastian variation7925.3%68.4%
D42QGD, Semi-Tarrasch, 7.Bd361036.7%57.9%
D43QGD semi-Slav1807929.1%53.4%
D43QGD semi-Slav, Hastings variation825.0%25.0%
D44QGD semi-Slav, 5.Bg5 dc38233.5%49.0%
D44QGD semi-Slav, Botvinnik system (anti-Meran)35024.6%48.0%
D44QGD semi-Slav, Ekstrom variation5320.8%38.7%
D44QGD semi-Slav, anti-Meran gambit186826.0%59.8%
D44QGD semi-Slav, anti-Meran, Alatortsev system5111.8%60.8%
D44QGD semi-Slav, anti-Meran, Lilienthal variation48121.4%58.9%
D44QGD semi-Slav, anti-Meran, Szabo variation21020.5%41.2%
D45QGD semi-Slav, 5...Nd7126226.6%51.3%
D45QGD semi-Slav, 5.e3136428.2%57.1%
D45QGD semi-Slav, Rubinstein (anti-Meran) system3135.5%59.7%
D45QGD semi-Slav, Stoltz variation3660230.5%52.3%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)324133.1%53.1%
D45QGD semi-Slav, stonewall defence2619.2%67.3%
D46QGD semi-Slav, 6.Bd310528.6%50.5%
D46QGD semi-Slav, Bogolyubov variation44130.4%56.5%
D46QGD semi-Slav, Chigorin defence84732.8%53.4%
D46QGD semi-Slav, Romih variation22728.6%63.7%
D47QGD semi-Slav, 7.Bc478626.8%57.6%
D47QGD semi-Slav, Meran variation307131.4%53.0%
D47QGD semi-Slav, Meran, Wade variation2070729.2%53.0%
D47QGD semi-Slav, neo-Meran (Lundin variation)70931.3%56.3%
D48QGD semi-Slav, Meran33222.9%48.2%
D48QGD semi-Slav, Meran, 8...a6618531.0%48.5%
D48QGD semi-Slav, Meran, Pirc variation2437.5%52.1%
D48QGD semi-Slav, Meran, Reynolds' variation132528.5%55.8%
D48QGD semi-Slav, Meran, old main line19733.5%57.9%
D49QGD semi-Slav, Meran, Blumenfeld variation52029.8%51.3%
D49QGD semi-Slav, Meran, Rabinovich variation11340.7%61.1%
D49QGD semi-Slav, Meran, Rellstab attack3633.3%50.0%
D49QGD semi-Slav, Meran, Sozin variation40239.8%49.5%
D49QGD semi-Slav, Meran, Stahlberg variation8833.0%51.7%
D50QGD, 4.Bg530628.4%57.0%
D50QGD, Been-Koomen variation1428.6%42.9%
D50QGD, Canal (Venice) variation30.0%33.3%
D50QGD, Semi-Tarrasch2347.8%58.7%
D50QGD, Semi-Tarrasch, Krause variation250.0%25.0%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation2528.0%38.0%
D51QGD2412.5%68.8%
D51QGD, 4.Bg5 Nbd711631.0%56.0%
D51QGD, 5...c66421.9%60.9%
D51QGD, Alekhine variation1421.4%53.6%
D51QGD, Capablanca anti-Cambridge Springs variation1216.7%58.3%
D51QGD, Manhattan variation2025.0%52.5%
D52QGD30130.2%55.6%
D52QGD, Cambridge Springs defence7248.6%47.9%
D52QGD, Cambridge Springs defence, 7.cd38431.8%57.3%
D52QGD, Cambridge Springs defence, Argentine variation3119.4%48.4%
D52QGD, Cambridge Springs defence, Bogoljubow variation68529.3%54.2%
D52QGD, Cambridge Springs defence, Capablanca variation3834.2%48.7%
D52QGD, Cambridge Springs defence, Rubinstein variation22431.3%55.4%
D52QGD, Cambridge Springs defence, Yugoslav variation94728.0%58.3%
D53QGD, 4.Bg5 Be758635.5%56.3%
D53QGD, 4.Bg5 Be7, 5.e3 O-O2138.1%52.4%
D53QGD, Lasker variation520.0%50.0%
D54QGD, Anti-neo-orthodox variation2821.4%53.6%
D55QGD, 6.Nf333332.4%59.2%
D55QGD, Neo-orthodox variation757.1%57.1%
D55QGD, Neo-orthodox variation, 7.Bh450331.4%53.9%
D55QGD, Neo-orthodox variation, 7.Bxf628736.2%51.6%
D55QGD, Petrosian variation46138.4%52.8%
D55QGD, Pillsbury attack10.0%0.0%
D56QGD, Lasker defence51829.9%51.6%
D56QGD, Lasker defence, Teichmann variation14432.6%60.1%
D57QGD, Lasker defence, Bernstein variation2937.9%50.0%
D57QGD, Lasker defence, main line4831.3%57.3%
D58QGD, Tartakower (Makagonov-Bondarevsky) system1239732.5%52.6%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd554637.4%51.1%
D59QGD, Tartakower variation18946.6%41.3%
D60QGD, Orthodox defence28229.8%57.1%
D60QGD, Orthodox defence, Botvinnik variation23036.5%53.5%
D60QGD, Orthodox defence, Rauzer variation2326.1%56.5%
D61QGD, Orthodox defence, Rubinstein variation50730.2%53.6%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)26441.7%50.8%
D63QGD, Orthodox defence10725.2%57.5%
D63QGD, Orthodox defence, 7.Rc132933.4%55.0%
D63QGD, Orthodox defence, Capablanca variation40.0%75.0%
D63QGD, Orthodox defence, Pillsbury attack2240.9%43.2%
D63QGD, Orthodox defence, Swiss (Henneberger) variation21729.0%50.9%
D63QGD, Orthodox defence, Swiss, Karlsbad variation29929.1%52.3%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)16539.4%57.9%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation10636.8%49.5%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation3036.7%41.7%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation3441.2%52.9%
D65QGD, Orthodox defence, Rubinstein attack, main line1827.8%41.7%
D66QGD, Orthodox defence, Bd3 line36430.2%55.5%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation3727.0%64.9%
D67QGD, Orthodox defence, Bd3 line5942.4%51.7%
D67QGD, Orthodox defence, Bd3 line, 11.O-O18231.3%62.4%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation11348.7%63.3%
D67QGD, Orthodox defence, Bd3 line, Capablanca freeing manoevre10.0%100.0%
D67QGD, Orthodox defence, Bd3 line, Janowski variation757.1%42.9%
D68QGD, Orthodox defence, classical variation13836.2%54.3%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)771.4%64.3%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)8236.6%59.8%
D69QGD, Orthodox defence, classical, 13.de2458.3%50.0%
D70Neo-Gruenfeld (Kemeri) defence12340.7%55.3%
D70Neo-Gruenfeld defence35123.6%53.4%
D71Neo-Gruenfeld, 5.cd19841.4%56.1%
D72Neo-Gruenfeld, 5.cd, main line32131.8%51.4%
D73Neo-Gruenfeld, 5.Nf3120240.4%53.1%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O51932.9%56.9%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc333543.9%54.5%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc4231.0%63.1%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6109434.2%55.7%
D77Neo-Gruenfeld, 6.O-O162233.9%52.7%
D78Neo-Gruenfeld, 6.O-O c6153132.9%54.4%
D79Neo-Gruenfeld, 6.O-O, main line77336.9%51.8%
D80Gruenfeld defence79641.5%53.5%
D80Gruenfeld, Stockholm variation56333.7%49.7%
D81Gruenfeld, Russian variation36333.9%55.5%
D82Gruenfeld, 4.Bf453731.3%53.8%
D83Gruenfeld, Gruenfeld gambit4626.1%52.2%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1963.2%42.1%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation8334.9%57.2%
D84Gruenfeld, Gruenfeld gambit accepted8124.7%67.9%
D85Gruenfeld, exchange variation270135.7%52.6%
D85Gruenfeld, modern exchange variation725636.9%53.4%
D86Gruenfeld, exchange, Larsen variation1926.3%60.5%
D86Gruenfeld, exchange, Simagin's improved variation11230.4%58.0%
D86Gruenfeld, exchange, Simagin's lesser variation5527.3%62.7%
D86Gruenfeld, exchange, classical variation127531.4%54.5%
D87Gruenfeld, exchange, Seville variation17738.4%65.5%
D87Gruenfeld, exchange, Spassky variation64433.7%57.4%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd32740.4%52.3%
D89Gruenfeld, Spassky variation, main line, 13.Bd310333.0%52.4%
D89Gruenfeld, exchange, Sokolsky variation6434.4%39.1%
D90Gruenfeld, Flohr variation27934.4%50.5%
D90Gruenfeld, Schlechter variation1428.6%64.3%
D90Gruenfeld, Three knights variation68034.4%53.7%
D91Gruenfeld, 5.Bg5203431.7%49.6%
D92Gruenfeld, 5.Bf4108432.7%55.2%
D93Gruenfeld with Bf4 e366138.1%52.8%
D94Gruenfeld with e3 Bd33040.0%60.0%
D94Gruenfeld, 5.e372834.5%58.0%
D94Gruenfeld, Flohr defence6624.2%54.5%
D94Gruenfeld, Makogonov variation22031.8%50.9%
D94Gruenfeld, Opovcensky variation20238.1%50.2%
D94Gruenfeld, Smyslov defence25236.1%53.0%
D95Gruenfeld with e3 & Qb36939.1%50.0%
D95Gruenfeld, Botvinnik variation11130.6%44.1%
D96Gruenfeld, Russian variation50530.5%53.7%
D97Gruenfeld, Russian variation with e45731.6%52.6%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation390231.5%51.3%
D97Gruenfeld, Russian, Byrne (Simagin) variation32626.4%50.6%
D97Gruenfeld, Russian, Levenfish variation728.6%42.9%
D97Gruenfeld, Russian, Prins variation112434.2%55.0%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation32428.4%59.9%
D98Gruenfeld, Russian, Keres variation1225.0%70.8%
D98Gruenfeld, Russian, Smyslov variation58527.4%53.8%
D99Gruenfeld defence, Smyslov, Yugoslav variation5149.0%59.8%
D99Gruenfeld defence, Smyslov, main line38230.6%61.6%
E00Catalan opening620330.4%54.2%
E00Neo-Indian (Seirawan) attack55923.6%49.7%
E00Queen's pawn game144927.3%53.8%
E01Catalan, closed48729.8%52.9%
E02Catalan, open, 5.Qa48937.1%59.0%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc42330.4%58.7%
E03Catalan, open, Alekhine variation156.7%43.3%
E04Catalan, open, 5.Nf31030232.5%53.2%
E05Catalan, open, classical line48731.2%55.9%
E06Catalan, closed, 5.Nf3601634.5%54.2%
E07Catalan, closed, 6...Nbd717229.7%52.6%
E07Catalan, closed, Botvinnik variation14625.3%59.2%
E08Catalan, closed, 7.Qc223132.0%53.7%
E08Catalan, closed, Qc2 & b339728.2%51.4%
E08Catalan, closed, Spassky gambit2524.0%56.0%
E08Catalan, closed, Zagoryansky variation450.0%75.0%
E09Catalan, closed, Sokolsky variation30.0%66.7%
E09Catalan, closed, main line60528.9%57.3%
E10Blumenfeld counter-gambit11526.1%53.9%
E10Blumenfeld counter-gambit accepted19922.6%54.0%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation36328.7%55.1%
E10Blumenfeld counter-gambit, Spielmann variation8820.5%54.5%
E10Doery defence10823.1%45.8%
E10Dzindzikhashvili defence19027.9%59.7%
E10Queen's pawn game623731.4%54.1%
E11Bogo-Indian defence346532.4%55.5%
E11Bogo-Indian defence, Gruenfeld variation357930.4%55.3%
E11Bogo-Indian defence, Monticelli trap2825.0%55.4%
E11Bogo-Indian defence, Nimzovich variation263128.5%56.4%
E12Queen's Indian defence49628.6%51.2%
E12Queen's Indian, 4.Nc3667129.0%52.6%
E12Queen's Indian, 4.Nc3, Botvinnik variation10829.6%50.9%
E12Queen's Indian, Miles variation136630.9%53.1%
E12Queen's Indian, Petrosian system1120031.8%53.3%
E13Queen's Indian, 4.Nc3, main line35425.7%55.8%
E14Queen's Indian, 4.e3268129.7%52.1%
E14Queen's Indian, Averbakh variation728.6%28.6%
E15Queen's Indian, 4.g3178041.0%55.3%
E15Queen's Indian, 4.g3 Bb724030.8%52.9%
E15Queen's Indian, Buerger variation2722.2%51.9%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)3089929.3%54.8%
E15Queen's Indian, Rubinstein variation11422.8%50.9%
E16Queen's Indian, Capablanca variation40032.8%57.4%
E16Queen's Indian, Riumin variation40932.0%55.9%
E16Queen's Indian, Yates variation75331.2%58.8%
E17Queen's Indian, 5.Bg2 Be79333.3%48.9%
E17Queen's Indian, Euwe variation10436.5%60.6%
E17Queen's Indian, Opovcensky variation127829.8%58.0%
E17Queen's Indian, anti-Queen's Indian system27433.2%53.5%
E17Queen's Indian, old main line, 6.O-O84629.9%56.3%
E18Queen's Indian, old main line, 7.Nc3293532.7%55.9%
E19Queen's Indian, old main line, 9.Qxc3165632.9%54.7%
E20Nimzo-Indian defence23225.4%44.6%
E20Nimzo-Indian, Kmoch variation101124.0%54.4%
E20Nimzo-Indian, Mikenas attack1631.3%34.4%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system72529.5%49.7%
E21Nimzo-Indian, three knights variation316428.9%51.6%
E21Nimzo-Indian, three knights, Euwe variation837.5%56.3%
E21Nimzo-Indian, three knights, Korchnoi variation4334.9%61.6%
E22Nimzo-Indian, Spielmann variation12431.5%51.2%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc62722.2%40.7%
E23Nimzo-Indian, Spielmann, Karlsbad variation1428.6%35.7%
E23Nimzo-Indian, Spielmann, San Remo variation475.0%62.5%
E24Nimzo-Indian, Saemisch variation18131.5%50.6%
E24Nimzo-Indian, Saemisch, Botvinnik variation2626.9%44.2%
E25Nimzo-Indian, Saemisch variation11535.7%52.6%
E25Nimzo-Indian, Saemisch, Keres variation38330.8%50.7%
E25Nimzo-Indian, Saemisch, Romanovsky variation14042.1%50.4%
E26Nimzo-Indian, Saemisch variation10329.1%46.6%
E26Nimzo-Indian, Saemisch, O'Kelly variation3622.2%36.1%
E27Nimzo-Indian, Saemisch variation4032.5%48.8%
E28Nimzo-Indian, Saemisch variation9028.9%53.3%
E29Nimzo-Indian, Saemisch, Capablanca variation12940.3%50.4%
E29Nimzo-Indian, Saemisch, main line12930.2%59.3%
E30Nimzo-Indian, Leningrad variation44830.4%51.1%
E30Nimzo-Indian, Leningrad, ...b5 gambit3240.6%42.2%
E31Nimzo-Indian, Leningrad, main line20120.9%46.3%
E32Nimzo-Indian, classical variation860832.3%53.1%
E32Nimzo-Indian, classical, Adorjan gambit18327.9%58.2%
E33Nimzo-Indian, classical, 4...Nc612824.2%62.9%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation55427.3%52.6%
E34Nimzo-Indian, classical, Noa variation78332.8%52.7%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed94332.4%49.7%
E36Nimzo-Indian, classical, Botvinnik variation1533.3%56.7%
E36Nimzo-Indian, classical, Noa variation, 5.a340032.8%55.4%
E36Nimzo-Indian, classical, Noa variation, main line50.0%20.0%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc215031.3%59.0%
E37Nimzo-Indian, classical, San Remo variation1241.7%54.2%
E38Nimzo-Indian, classical, 4...c575530.1%57.5%
E39Nimzo-Indian, classical, Pirc variation133531.8%56.6%
E40Nimzo-Indian, 4.e321026.7%53.8%
E40Nimzo-Indian, 4.e3, Taimanov variation10122.8%52.0%
E41Nimzo-Indian, 4.e3 c578732.9%49.9%
E41Nimzo-Indian, e3, Huebner variation92425.8%49.1%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)200930.8%55.4%
E43Nimzo-Indian, Fischer variation62229.3%54.7%
E44Nimzo-Indian, Fischer variation, 5.Ne286424.2%56.8%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation66230.7%54.8%
E46Nimzo-Indian, 4.e3 O-O18435.9%52.2%
E46Nimzo-Indian, Reshevsky variation140228.0%52.2%
E46Nimzo-Indian, Simagin variation9329.0%46.8%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd381237.2%54.6%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d564930.8%51.5%
E49Nimzo-Indian, 4.e3, Botvinnik system42629.1%47.9%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d512132.2%55.0%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d525031.2%52.0%
E51Nimzo-Indian, 4.e3, Ragozin variation4751.1%57.4%
E52Nimzo-Indian, 4.e3, main line with ...b669832.5%52.5%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd712239.3%55.7%
E53Nimzo-Indian, 4.e3, Keres variation10232.4%45.6%
E53Nimzo-Indian, 4.e3, main line with ...c5147336.9%51.6%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc202535.6%53.8%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation4334.9%54.7%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation294034.7%53.5%
E56Nimzo-Indian, 4.e3, main line with 7...Nc6120029.3%54.9%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd2729.6%70.4%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3284028.6%48.6%
E59Nimzo-Indian, 4.e3, main line204030.5%54.2%
E60King's Indian defence149123.7%53.4%
E60King's Indian, 3.Nf3453129.0%55.6%
E60King's Indian, 3.g3207031.3%56.0%
E60King's Indian, 3.g3, counterthrust variation1421.4%46.4%
E60King's Indian, Anti-Gruenfeld13721.9%45.3%
E60King's Indian, Danube gambit1631.3%53.1%
E60Queen's pawn, Mengarini attack14024.3%50.7%
E61King's Indian defence, 3.Nc3126227.7%53.8%
E61King's Indian, Smyslov system13023.8%51.2%
E62King's Indian, fianchetto variation13327.1%54.9%
E62King's Indian, fianchetto with ...Nc633424.6%57.2%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation114729.7%58.2%
E62King's Indian, fianchetto, Larsen system30328.7%55.3%
E62King's Indian, fianchetto, Simagin variation16328.2%68.1%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation49229.5%58.2%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation41623.3%58.5%
E63King's Indian, fianchetto, Panno variation324028.7%57.0%
E64King's Indian, fianchetto, Yugoslav system17423.0%56.9%
E65King's Indian, fianchetto, Yugoslav, 7.O-O22431.3%55.8%
E66King's Indian, fianchetto, Yugoslav Panno45627.2%55.7%
E67King's Indian, fianchetto with ...Nd717226.7%62.8%
E67King's Indian, fianchetto, classical variation95331.4%54.8%
E68King's Indian, fianchetto, classical variation, 8.e4210729.0%58.7%
E69King's Indian, fianchetto, classical main line125530.3%60.0%
E70King's Indian, 4.e479925.7%54.3%
E70King's Indian, Kramer system22722.0%53.3%
E70King's Indian, accelerated Averbakh system12526.4%50.0%
E71King's Indian, Makagonov system (5.h3)78525.2%55.2%
E72King's Indian with e4 & g34228.6%54.8%
E72King's Indian, Pomar system1353.8%57.7%
E73King's Indian, 5.Be210222.5%48.5%
E73King's Indian, Averbakh system81227.6%52.0%
E73King's Indian, Semi-Averbakh system3116.1%56.5%
E74King's Indian, Averbakh, 6...c523322.3%63.9%
E75King's Indian, Averbakh, main line3732.4%45.9%
E76King's Indian, Four pawns attack28030.4%58.4%
E76King's Indian, Four pawns attack, dynamic line13732.1%51.8%
E77King's Indian, Four pawns attack23031.7%52.4%
E77King's Indian, Four pawns attack, 6.Be250.0%40.0%
E77King's Indian, Four pawns attack, Florentine gambit3930.8%41.0%
E78King's Indian, Four pawns attack, with Be2 and Nf31942.1%57.9%
E79King's Indian, Four pawns attack, main line12644.4%57.1%
E80King's Indian, Saemisch variation47125.5%55.4%
E81King's Indian, Saemisch, 5...O-O220524.9%53.8%
E81King's Indian, Saemisch, Byrne variation8731.0%51.1%
E82King's Indian, Saemisch, double fianchetto variation15328.8%60.8%
E83King's Indian, Saemisch, 6...Nc68016.3%54.4%
E83King's Indian, Saemisch, Panno formation18520.5%54.6%
E83King's Indian, Saemisch, Ruban variation812.5%56.3%
E84King's Indian, Saemisch, Panno main line83621.9%52.1%
E85King's Indian, Saemisch, orthodox variation4337.2%62.8%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c654022.2%55.0%
E87King's Indian, Saemisch, orthodox, 7.d545220.8%62.2%
E87King's Indian, Saemisch, orthodox, Bronstein variation1127.3%59.1%
E88King's Indian, Saemisch, orthodox, 7.d5 c650731.0%55.1%
E89King's Indian, Saemisch, orthodox main line8026.3%61.9%
E90King's Indian, 5.Nf3115523.5%54.3%
E90King's Indian, Larsen variation11030.0%54.1%
E90King's Indian, Zinnowitz variation9430.9%52.7%
E91King's Indian, 6.Be286025.1%59.7%
E91King's Indian, Kazakh variation69729.4%57.5%
E92King's Indian, Andersson variation37337.8%53.2%
E92King's Indian, Gligoric-Taimanov system238324.6%57.2%
E92King's Indian, Petrosian system18117.7%56.4%
E92King's Indian, Petrosian system, Stein variation119627.2%53.0%
E92King's Indian, classical variation1717.6%44.1%
E93King's Indian, Petrosian system, Keres variation2828.6%50.0%
E93King's Indian, Petrosian system, main line22123.1%54.5%
E94King's Indian, orthodox variation186031.2%57.0%
E94King's Indian, orthodox, 7...Nbd7256126.3%56.9%
E94King's Indian, orthodox, Donner variation22526.2%55.8%
E95King's Indian, orthodox, 7...Nbd7, 8.Re197026.5%56.0%
E96King's Indian, orthodox, 7...Nbd7, main line21533.0%59.3%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)842924.9%55.5%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack309128.6%57.7%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne1311721.3%58.9%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack4231.0%44.0%
E99King's Indian, orthodox, Aronin-Taimanov, main line13222.7%53.8%

Created in 2005-2013 by CCRL team
Last games added on November 18, 2017