Code

Opening Names

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B00

King's pawn opening

St.George (Baker) defence

Owen defence

Guatemala defence

Barnes defence

Fried fox defence

Carr's defence

KP: Nimzovich defence

KP: Nimzovich defence

KP: Colorado counter

KP: Nimzovich defence, Wheeler gambit

KP: Nimzovich defence

KP: Neo-Mongoloid defence

KP: Nimzovich defence, Bogolyubov variation

KP: Nimzovich defence, Marshall gambit

Hippopotamus defence

Corn stalk defence

Lemming defence

Fred

Reversed Grob (Borg/Basman defence/macho Grob)

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B01

Counter-counter (e4/d4) attack

Scandinavian (centre counter) defence

Scandinavian: Pytel-Wade variation

Scandinavian defence, Lasker variation

Scandinavian defence

Scandinavian defence, Gruenfeld variation

Scandinavian: Anderssen counter-attack

Scandinavian: Anderssen counter-attack, Goteborg system

Scandinavian: Anderssen counter-attack, Collijn variation

Scandinavian: Anderssen counter-attack orthodox attack

Scandinavian: Mieses-Kotrvc gambit

Scandinavian defence

Scandinavian defence

Scandinavian: Richter variation

Scandinavian: Marshall variation

Scandinavian: Kiel variation

Scandinavian: Icelandic gambit

Scandinavian gambit

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B02

Alekhine's defence

Alekhine's defence: Scandinavian variation

Alekhine's defence: Spielmann variation

Alekhine's defence: Maroczy variation

Alekhine's defence: Krejcik variation

Alekhine's defence: Brooklyn defence

Alekhine's defence: Mokele Mbembe (Buecker) variation

Alekhine's defence

Alekhine's defence: Kmoch variation

Alekhine's defence

Alekhine's defence: Steiner variation

Alekhine's defence: two pawns (Lasker's) attack

Alekhine's defence: two pawns attack, Mikenas variation

Alekhine's defence: Saemisch attack

Alekhine's defence: Welling variation

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B03

Alekhine's defence

Alekhine's defence: O'Sullivan gambit

Alekhine's defence

Alekhine's defence: Balogh variation

Alekhine's defence

Alekhine's defence: exchange variation

Alekhine's defence: exchange, Karpov variation

Alekhine's defence: four pawns attack

Alekhine's defence: four pawns attack, fianchetto variation

Alekhine's defence: four pawns attack, Planinc variation

Alekhine's defence: four pawns attack, Trifunovic variation

Alekhine's defence: four pawns attack, Korchnoi variation

Alekhine's defence: four pawns attack (6...Nc6)

Alekhine's defence: four pawns attack, Ilyin-Genevsky var.

Alekhine's defence: four pawns attack (7.Be3)

Alekhine's defence: four pawns attack, Tartakower variation

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B04

Alekhine's defence: modern variation

Alekhine's defence: modern, fianchetto variation

Alekhine's defence: modern, Keres variation

Alekhine's defence: modern, Schmid variation

Alekhine's defence: modern, Larsen variation

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B05

Alekhine's defence: modern variation (4...Bg4)

Alekhine's defence: modern, Alekhine variation

Alekhine's defence: modern, Vitolins attack

Alekhine's defence: modern, Panov variation

Alekhine's defence: modern, Flohr variation

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B06

Robatsch defence: Gurgenidze variation

Robatsch (modern) defence

Robatsch defence: three pawns attack

Robatsch defence

Robatsch (modern) defence

Robatsch defence: Pseudo- Austrian attack

Robatsch defence: two knights variation

Robatsch defence: two knights, Suttles variation

Pirc-Robatsch: 4.Be3 c6

Pirc-Robatsch: 4.Be3 e5

Pirc-Robatsch: 4.Be3 Nf6

Pirc-Robatsch (4.Be3 Nh6)

Pirc-Robatsch (4.Be3 Nd7)

Pirc-Robatsch (4.Be3 b6)

Pirc-Robatsch: 4.Be3 a6

Robatsch: Gurgenidze (Bc4)

Pirc-Robatsch (Bg5)

Robatsch defence

Robatsch defence: 4.Bc4

Pirc-Robatsch

Robatsch defence: 4.Be2

Robatsch defence: Geller's system

Robatsch defence

Robatsch defence: 4.c4

Norwegian defence

Robatsch defence: Root variation

Robatsch defence: three pawns attack

Pirc-Robatsch

Pirc-Robatsch

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B07

Pirc-Queen's pawn-KID-East Indian

Pirc-KID-East Indian

Pirc-Robatsch

Pirc-Robatsch

Pirc: 150 attack (4...Bg7)

Pirc-Robatsch

Pirc: 3.Bd3

Pirc: step variation

Pirc defence

Pirc defence

Pirc: bayonet (Mariotti) attack

Pirc: Chinese variation

Pirc: 150 attack

Pirc: Byrne variation

Pirc: Sveshnikov system

Pirc: Holmov system

Pirc: 3.Nc3 c6

Pirc-Robatsch

Pirc-Robatsch

Pirc-Robatsch

Pirc-Robatsch

Pirc: Ufimtsev-Pytel variation (Pribyl defence)

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B08

Pirc: classical (two knights) system

Pirc: classical (two knights) system

Pirc: classical, h3 system

Pirc: classical system (5.Be2)

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B09

Pirc: Austrian attack

Pirc: Austrian attack

Pirc: Austrian attack (6.Be3)

Pirc: Austrian attack (6.e5)

Pirc: Austrian attack (6.Bd3)

Pirc: Austrian attack, dragon formation

Pirc: Austrian attack, Ljubojevic variation

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B10

Caro-Kann: anti-Caro-Kann defence

Caro-Kann: anti-anti-Caro- Kann defence

Caro-Kann: anti-anti-Caro- Kann, Neo-Nimzo-Gligoric

Caro-Kann defence

Caro-Kann: closed (Breyer) variation

Caro-Kann defence

Caro-Kann: Goldman (Spielmann) variation

Caro-Kann: two knights variation

Caro-Kann: Hillbilly attack

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B11

Caro-Kann: two knights (3...Bg4)

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B12

Caro-Kann defence

Caro-Masi defence

de Bruycker defence

Caro-Kann defence

Caro-Kann: Tartakower (fantasy) variation

Caro-Kann: 3.Nd2

Caro-Kann: Edinburgh variation

Caro-Kann: 3.e5 c5

Caro-Kann: advance variation

Caro-Kann: advance, main line

Caro-Kann: advance (Karpov, Seirawan)

Caro-Kann-Robatsch

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B13

Caro-Kann: Panov-Botvinnik attack

Caro-Kann: Panov-Botvinnik attack

Caro-Kann: Panov-Botvinnik, normal variation

Caro-Kann: Panov-Botvinnik, Czerniak variation

Caro-Kann: Panov-Botvinnik, Reifir (Spielmann) variation

Caro-Kann: Panov-Botvinnik, Herzog defence

Caro-Kann: Panov-Botvinnik, Gunderam attack

Caro-Kann: exchange variation

Caro-Kann: exchange, Rubinstein variation

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B14

Caro-Kann: Panov-Botvinnik attack (6.Nf3 Be7)

Caro-Kann: Panov-Botvinnik attack (6.Nf3 Be7)

Caro-Kann: Panov-Botvinnik attack (6.Nf3 Bb4)

Caro-Kann: Panov-Botvinnik attack (6.Nf3 Bb4)

Caro-Kann: Panov-Botvinnik attack (7.Bd3)

Caro-Kann: Panov-Botvinnik attack (5...e6)

Caro-Kann: Panov-Botvinnik attack (5...g6)

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B15

Caro-Kann defence

Caro-Kann: Tartakower (Nimzovich) variation

Caro-Kann: Forgacs variation

Caro-Kann: Alekhine gambit

Caro-Kann defence

Caro-Kann: Gurgenidze (f4 e5)

Caro-Kann: Gurgenidze (f4 e5)

Caro-Kann: Gurgenidze (e5 f4)

Caro-Kann: Gurgenidze system

Caro-Kann: Gurgenidze counter- attack

Caro-Kann: Rasa-Studier gambit

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B16

Caro-Kann: Bronstein-Larsen variation

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B17

Caro-Kann: Steinitz variation

Caro-Kann: Steinitz variation (8.Bd3)

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B18

Caro-Kann: classical variation

Caro-Kann: classical (6.h4)

Caro-Kann: classical, Flohr variation

Caro-Kann: classical, Maroczy attack

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B19

Caro-Kann: classical (7...Nd7)

Caro-Kann: classical, Spassky variation

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B20

Sicilian: Neo-King's Indian attack-Reti B30/01 Sicilian:

Sicilian defence

Sicilian: wing gambit

Sicilian: wing gambit, Santasiere variation

Sicilian: wing gambit, Marshall variation

Sicilian: wing gambit, Marienbad variation

Sicilian: wing gambit, Carlsbad variation

Sicilian: Burger attack

Sicilian: Gloria variation

Sicilian: Steinitz variation

Sicilian: Keres variation (2.Ne2)

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B21

Sicilian: Smith-Morra gambit

Sicilian: Andreaschek (Smith- Morra) gambit

Sicilian: Smith-Morra gambit

Sicilian: Smith-Morra gambit, Chicago defence

Sicilian: Grand Prix attack

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B22

Sicilian: Alapin's variation (2.c3)

Sicilian: Alapin (...d5 exd5...Qxd5)

Sicilian: Alapin (...d5 exd5...Qxd5)

Sicilian: Alapin (...Qxd5 without...Nf6)

Sicilian: Alapin (...d5 exd5...Qxd5)

Sicilian: Alapin (...d5 exd5...Qxd5)

Sicilian: 2.c3, Heidenfeld variation

Sicilian: Alapin's variation (Smith-Morra declined)

Sicilian: Alapin's variation (Smith-Morra gambit)

Sicilian-Alekhine-Alapin (Smith-Morra)

Sicilian-Alekhine-Alapin (Smith-Morra) B22

Sicilian: Alapin's variation (3.c3)

Sicilian: Alapin (...d5 exd5...Qxd5)

Sicilian: Alapin (...d5 exd5...exd5)

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B23

Sicilian: closed

Sicilian: closed (2...Nc6)

Sicilian: chameleon variation

Sicilian: Grand Prix attack

Sicilian: Grand Prix attack, Schofman variation

Sicilian: closed, Korchnoi variation

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B24

Sicilian: closed

Sicilian: closed, modern Botvinnik variation

Sicilian: closed, Smyslov variation

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B25

Sicilian: closed

Sicilian: closed (6.Ne2 e5) Botvinnik

Sicilian: closed (6.f4)

Sicilian: closed (6.f4 e5) Botvinnik

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B26

Sicilian: closed (6.Be3)

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B27

Sicilian defence

Sicilian: Hungarian variation

Sicilian: Acton extension

Sicilian: Quinteros variation

Sicilian: Stiletto (Althouse) variation

Sicilian: Katalimov variation

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B28

Sicilian: O'Kelly variation

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B29

Sicilian: Nimzovich-Rubinstein variation

Sicilian: Nimzovich-Rubinstein, Rubinstein counter-gambit

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B30

Sicilian defence

Sicilian defence

Sicilian defence

Sicilian defence

Sicilian: Nimzovich-Rossolimo attack

Sicilian: Nimzovich-Rossolimo attack, Zagrebelny variation

Sicilian defence

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B31

Sicilian: Nimzovich-Rossolimo attack (with...g6, without...d6)

Sicilian: Nimzovich-Rossolimo attack, Gurgenidze variation

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B32

Sicilian defence

Sicilian: Labourdonnais- Loewenthal variation

Sicilian: Labourdonnais- Loewenthal (Kalishnikov) variation

Sicilian: Kalishnikov, Neo- Sveshnikov variation

Sicilian: Kalishnikov, Neo- Sveshnikov variation

Sicilian: Flohr (Lady Godiva) variation

Sicilian: Nimzovich variation

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B33

Sicilian defence

Sicilian: Sveshnikov (5...e6)

Sicilian: Pelikan, Bird variation

Sicilian: Pelikan, Chelyabinsk variation

Sicilian: Sveshnikov variation

Sicilian: Sveshnikov variation

Sicilian: Sveshnikov, Kramnik (12...e4)

Sicilian: Pelikan (Lasker- Sveshnikov) variation

Sicilian: Sveshnikov (a4)

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B34

Sicilian: accelerated fianchetto, exchange variation

Sicilian: accelerated fianchetto, modern variation

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B35

Sicilian: accelerated fianchetto, modern variation (with Bc4)

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B36

Sicilian: accelerated fianchetto, Maroczy bind

Sicilian: accelerated fianchetto, Gurgenidze variation

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B37

Sicilian: accelerated fianchetto, Maroczy bind (5...Bg7)

Sicilian: accelerated fianchetto, Simagin variation

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B38

Sicilian: accelerated fianchetto, Maroczy bind (6.Be3)

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B39

Sicilian: accelerated fianchetto, Breyer variation

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B40

Sicilian-KIA

Sicilian: fianchetto, Reti (...d5 Qe2)

Sicilian: fianchetto, Reti (...d5 Nbd2)

Sicilian: fianchetto, Reti, French

Sicilian: double fianchetto, Reti

Sicilian defence

Sicilian: Alapin-French (c3/e5...d4)

Sicilian: fianchetto (...e6 Nc3...a6)

Sicilian: Marshall variation

Sicilian defence

Sicilian: Anderssen variation

Sicilian: Pin variation (Sicilian counter-attack)

Sicilian: Pin, Koch variation

Sicilian: Pin, Jaffe variation

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B41

Sicilian: Kan variation

Sicilian: Kan, Maroczy bind (Reti variation)

Sicilian: Kan, Maroczy bind (Bronstein variation)

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B42

Sicilian: Kan (5.Bd3)

Sicilian: Kan, Swiss cheese variation

Sicilian: Kan, Gipslis variation

Sicilian: Kan, Polugaievsky variation

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B43

Sicilian: Kan (5.Nc3)

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B44

Sicilian defence

Sicilian: Szen (anti-Taimanov) variation

Sicilian: Szen variation, Dely- Kasparov gambit

Sicilian: Szen, hedgehog variation

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B45

Sicilian: Taimanov, American attack

Sicilian: Taimanov variation

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B46

Sicilian: Taimanov variation

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B47

Sicilian: Taimanov (Bastrikov) variation

Sicilian: Taimanov, Flohr variation

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B48

Sicilian: Taimanov variation

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B49

Sicilian: Taimanov variation

Sicilian: Taimanov, Portisch variation

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B50

Sicilian: closed fianchetto (with d3)

Sicilian: 3.d3

Sicilian: 3.g3

Sicilian: four knights fianchetto variation

Sicilian defence

Sicilian: 3.g3

Sicilian: wing gambit deferred

Sicilian: Kopec system

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B51

Sicilian: Nimzovich-Rossolimo attack (3...d6)

Sicilian: Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack

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B52

Sicilian: Canal-Sokolsky attack (3...Bd7)

Sicilian: Canal-Sokolsky attack, Bronstein gambit

Sicilian: Canal-Sokolsky attack, Sokolsky variation

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B53

Sicilian: Chekhover variation

Sicilian: Chekhover, Zaitsev variation

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B54

Sicilian: Taimanov variation (5...d6)

Sicilian defence

Sicilian: Prins (Moscow) variation

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B55

Sicilian: Prins variation, Venice attack

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B56

Sicilian defence

Sicilian defence

Sicilian: Venice attack

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B57

Sicilian: Sozin, not Scheveningen

Sicilian: Sozin, Benko variation

Sicilian: Magnus Smith trap

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B58

Sicilian: classical

Sicilian: Boleslavsky variation

Sicilian: Boleslavsky, Louma variation

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B59

Sicilian: Boleslavsky variation (7.Nb3)

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B60

Sicilian: Richter-Rauzer

Sicilian: Richter-Rauzer, Bondarevsky variation

Sicilian: Richter-Rauzer, Larsen variation

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B61

Sicilian: Richter-Rauzer, Larsen variation (7.Qd2)

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B62

Sicilian: Richter-Rauzer (6...e6)

Sicilian: Richter-Rauzer, Keres variation

Sicilian: Richter-Rauzer, Podvebrady variation

Sicilian: Richter-Rauzer, Richter attack

Sicilian: Richter-Rauzer, Margate (Alekhine) variation

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B63

Sicilian: Richter-Rauzer, Rauzer attack

Sicilian: Richter-Rauzer, Rauzer (Fedorowicz)

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B64

Sicilian: Richter-Rauzer, Rauzer attack (...Be7...f4)

Sicilian: Richter-Rauzer, Rauzer attack, Geller variation

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B65

Sicilian: Richter-Rauzer, Rauzer attack ...Be7 ...Nxd4 defence

Sicilian: Richter-Rauzer, Rauzer attack (...Be7...Nxd4) defence

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B66

Sicilian: Richter-Rauzer, Rauzer attack (...a6...h6) defence

Sicilian: Richter-Rauzer, Rauzer attack (...a6)

Sicilian: Richter-Rauzer, Rauzer attack (...a6)

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B67

Sicilian: Richter-Rauzer, Rauzer attack (...a6...Bd7) defence

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B68

Sicilian: Richter-Rauzer, Rauzer attack (9.Be2)

Sicilian: Richter-Rauzer, Rauzer attack (...a6...Be7) defence

Sicilian: Richter-Rauzer, Rauzer attack (11.Bd3)

Sicilian: Richter-Rauzer, Rauzer attack (11.e5)

Sicilian: Richter-Rauzer, Rauzer attack (11.Kb1)

Sicilian: Richter-Rauzer, Rauzer attack (11.a3)

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B69

Sicilian: Richter-Rauzer, Rauzer attack (...a6 11.Bxf6)

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B70

Sicilian: dragon variation

Sicilian: dragon variation

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B71

Sicilian: dragon, Levenfish variation

Sicilian: dragon, Levenfish-Flohr variation

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B72

Sicilian: dragon (6.Be3)

Sicilian: dragon, classical attack

Sicilian: dragon, classical, Amsterdam variation

Sicilian: dragon, classical, Grigoriev variation

Sicilian: dragon, classical, Nottingham variation

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B73

Sicilian: dragon, classical (8.O- O)

Sicilian: dragon, classical, Zollner gambit

Sicilian: dragon, classical, Richter variation

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B74

Sicilian: dragon, classical (9.Nb3)

Sicilian: dragon, classical, Alekhine variation

Sicilian: dragon, classical, Reti- Tartakower variation

Sicilian: dragon, classical, Stockholm attack

Sicilian: dragon, classical, Spielmann variation

Sicilian: dragon, classical, Bernard defence

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B75

Sicilian: dragon, Yugoslav attack

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B76

Sicilian: dragon, Yugoslav attack (7...O-O)

Sicilian: dragon, Yugoslav attack, Rauser variation

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B77

Sicilian: dragon, Yugoslav attack (9.Bc4)

Sicilian: dragon, Yugoslav attack, Byrne variation

Sicilian: dragon, Yugoslav attack (9...Bd7)

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B78

Sicilian: dragon, Yugoslav attack (10.O-O-O)

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B79

Sicilian: dragon, Yugoslav attack (12.h4)

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B80

Sicilian: Scheveningen, fianchetto variation

Sicilian: Scheveningen variation

Sicilian: Scheveningen, Vitolins variation

Sicilian: Scheveningen, English variation

Sicilian: Scheveningen, fianchetto variation

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B81

Sicilian: Scheveningen, Keres attack

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B82

Sicilian: Scheveningen (6.f4 e6)

Sicilian: Scheveningen (6.f4)

Sicilian: Scheveningen, Tal variation

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B83

Sicilian: Scheveningen (6.Be2)

Sicilian: modern Scheveningen

Sicilian: modern Scheveningen, main line

Sicilian: modern Scheveningen, main line (with Nb3)

Sicilian: modern Scheveningen, main line

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B84

Sicilian: Scheveningen (Paulsen), classical variation

Sicilian: Scheveningen (Paulsen), classical variation

Sicilian: Scheveningen, classical, Nd7 system

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B85

1

Sicilian: Scheveningen, modern main line

Sicilian: Scheveningen, classical

Sicilian: Scheveningen, classical variation (with...Qc7 &...Nc6)

Sicilian: Scheveningen, classical

Sicilian: Scheveningen, classical main line

Sicilian: Scheveningen, modern main line

Sicilian: Scheveningen, modern main line

Sicilian: Scheveningen, modern main line (...Qb8)

Sicilian: Scheveningen, modern main line (...Bd7 Qe1)

Sicilian: Scheveningen, classical, Maroczy (...b6)

Sicilian: Scheveningen, classical (Ndb5)

Sicilian: Scheveningen, classical, Maroczy system

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B86

Sicilian: Sozin attack

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B87

Sicilian: Sozin (with...a6 &...b5)

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B88

Sicilian: Sozin, Leonhardt variation

Sicilian: Sozin, Fischer variation

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B89

Sicilian: Sozin (7.Be3)

Sicilian: Velimirovic attack

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B90

Sicilian: Najdorf

Sicilian: Najdorf, Lipnitzky attack

Sicilian: Najdorf, Byrne (English) attack

Sicilian: Najdorf, Byrne- Almasi attack

Sicilian: Najdorf, Adams attack

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B91

Sicilian: Najdorf, Zagreb (fianchetto) variation

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B92

Sicilian: Najdorf, Opovcensky variation

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B93

Sicilian: Najdorf (6.f4)

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B94

Sicilian: Najdorf (6.Bg5)

Sicilian: Najdorf, Ivkov variation

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B95

Sicilian: Najdorf (6...e6)

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B96

Sicilian: Najdorf (7.f4)

Sicilian: Najdorf, Polugayevsky variation

Sicilian: Najdorf, Polugayevsky, Simagin variation

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B97

Sicilian: Najdorf (7...Qb6)

Sicilian: Najdorf, Poisoned pawn variation

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B98

Sicilian: Najdorf (7...Be7)

Sicilian: Najdorf variation

Sicilian: Najdorf, Browne variation

Sicilian: Najdorf, Goteborg (Argentine) variation

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B99

Sicilian: Najdorf (7...Be7) main line


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