World Correspondence Chess Federation

WORLD CORRESPONDENCE CHESS FEDERATION

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A00 Various openings A00 Polish (Sokolsky) opening 1.b4 A00 Polish: Tuebingen variation 1.b4 Nh6 A00 Polish: Outflank variation 1.b4 c6 A00 Benko's opening 1.g3 A00 Lasker simul special 1.g3 h5 A00 Benko's opening: reversed Alekhine 1.g3 e5, 2. Nf3 A00 Grob's attack 1.g4 A00 Grob: spike attack 1.g4 d5, 2. Bg2 c6, 3. g5 A00 Grob: Fritz gambit 1.g4 d5, 2. Bg2 Bg4, 3. c4 A00 Grob: Romford counter-gambit 1.g4 d5, 2. Bg2 Bg4, 3. c4 d4 A00 Clemenz (Mead's, Basman's or de Klerk's) op. 1.h3 A00 Global opening 1.h3 e5, 2. a3 A00 Amar (Paris) opening 1.Nh3 A00 Amar gambit 1.h3 d5, 2. g3 e5, 3. f4 Bxh3, 4. Bxh3 exf4 A00 Dunst (Sleipner, Heinrichsen) opening 1.Nc3 A00 Dunst (Sleipner,Heinrichsen) opening 1.Nc3 e5 A00 Battambang opening 1.Nc3 e5, 2. a3 A00 Novosibirsk opening 1.Nc3 c5, 2. d4 cxd4,3. Qxd4 Nc6,4. Qh4 A00 Anderssen's opening 1.a3 A00 Ware (Meadow Hay) opening 1.a4 A00 Crab opening 1.a4 e5, 2. h4 A00 Saragossa opening 1.c3 A00 Mieses opening 1.d3 A00 Mieses opening 1.d3 e5 A00 Valencia opening 1.d3 e5, 2. Nd2 A00 Venezolana opening 1.d3 c5,2. Nc3 Nc6, 3. g3 A00 Van't Kruijs opening 1.e3 A00 Amsterdam attack 1.e3 e5,2. c4 d6, 3. Nc3 Nc6, 4. b3 Nf6 A00 Gedult's opening 1.f3 A00 Hammerschlag (Fried fox/Pork chop opening) 1.f3 e5, 2. Kf2 A00 Anti-Borg (Desprez) opening 1.h4 A00 Durkin's attack 1.Na3 A01 Nimzovich-Larsen attack 1.b3 A01 Nimzovich-Larsen attack: modern variation 1.b3 e5 A01 Nimzovich-Larsen attack: Indian variation 1.b3 Nf6 A01 Nimzovich-Larsen attack: classical variation 1.b3 d5 A01 Nimzovich-Larsen attack: English variation 1.b3 c5 A01 Nimzovich-Larsen attack: Dutch variation 1.b3 f5 A01 Nimzovich-Larsen attack: Polish variation 1.b3 b5 A01 Nimzovich-Larsen attack: symmetrical variation 1.b3 b6 A02 - A03 Bird's opening 1.f4 A02 Bird: From gambit 1.f4 e5 A02 Bird: From gambit, Lasker variation 1.f4 e5,2. fxe5 d6, 3. exd6 Bxd6, 4. Nf3 g5 A02 Bird: From gambit, Lipke variation 1.f4 e5, 2. fxe5 d6, 3. exd6 Bxd6, 4. Nf3 Nh6, 5. d4 A02 Bird's opening, Swiss gambit 1.f4 f5, 2. e4 fxe4, 3. Nc3 Nf6, 4. g4 A02 Bird: Hobbs gambit 1.f4 g5 A03 Bird's opening 1.f4 d5 A03 Mujannah opening 1.f4 d5, 2. c4 A03 Bird's opening: Williams gambit 1.f4 d5, 2. e4 A03 Bird's opening: Lasker variation 1.f4 d5, 2. Nf3 Nf6, 3. e3 c5 A04 - A09 Reti opening 1.Nf3 A04 Reti v Dutch 1.Nf3 f5 A04 Reti: Pirc-Lisitsin gambit 1.Nf3 f5, 2. e4 A04 Reti: Lisitsin gambit deferred 1.Nf3 f5, 2. d3 Nf6, 3. e4 A04 Reti opening 1.Nf3 d6 A04 Reti: Wade defence 1.Nf3 d6, 2. e4 Bg4 A04 Reti: Herrstroem gambit 1.Nf3 g5 A05 Reti opening 1.Nf3 Nf6 A05 Reti: King's Indian attack, Spassky's variation 1.Nf3 Nf6, 2. g3 b5 A05 Reti: King's Indian attack 1.Nf3 Nf6, 2. g3 g6 A05 Reti: King's Indian attack, Reti-Smyslov variation 1.Nf3 Nf6, 2. g3 g6, 3. b4 A06 Reti opening 1.Nf3 d5 A06 Reti: old Indian attack 1.Nf3 d5, 2. d3 A06 Santasiere's folly 1.Nf3 d5, 2. b4 A06 Tennison (Lemberg,Zukertort)gambit 1.Nf3 d5, 2. e4 A06 Reti: Nimzovich-Larsen attack 1.Nf3 d5, 2. b3 A07 Reti: KIA (Barcza system) 1.Nf3 d5, 2. g3 A07 Reti: KIA, Yugoslav variation 1.Nf3 d5, 2. g3 Nf6, 3. Bg2 c6, 4. 0-0 Bg4 A07 Reti: KIA, Keres variation 1.Nf3 d5, 2. g3 Bg4, 3. Bg2 Nd7 A07 Reti: King's Indian attack 1.Nf3 d5, 2. g3 g6 A07 Reti: KIA, Pachman system 1.Nf3 d5, 2. g3 g6, 3. Bg2 Bg7, 4. 0-0 e5, 5. d3 Ne7 A07 Reti: KIA (with ...c5) 1.Nf3 d5, 2. g3 c5 ------------------------------------ A08 Reti: King's Indian attack 1.Nf3 d5, 2. g3 c5, 3. Bg2 A08 Reti: KIA, French variation 1.Nf3 d5, 2. g3 c5, 3. Bg2 Nc6, 4. 0-0 e6, 5. d3 Nf6, 6. Nbd2 Be7, 7. e4 0-0, 8. Re1 ------------------------------------ A09 Reti opening 1.Nf3 d5, 2. c4 A09 Reti: advance variation 1.Nf3 d5, 2. c4 d4 A09 Reti accepted 1.Nf3 d5, 2. c4 dxc4 A09 Reti accepted: Keres var. 1.Nf3 d5, 2. c4 dxc4, 3. e3 Be6 ------------------------------------ A10 - A39 English opening 1.c2c4 A10 English opening 1.c4 g6 A10 English: Adorjan defence 1.c4 g6, 2. e4 e5 A10 English: Jaenisch gambit 1.c4 b5 A10 English: Anglo-Dutch defense 1.c4 f5 ------------------------------------ A11 English: Caro-Kann defensive system 1.c4 c6 ---------------------------------------- A12 English: Caro-Kann defensive system 1.c4 c6, 2. Nf3 d5, 3. b3 A12 English: Torre defensive system 1.c4 c6, 2. Nf3 d5, 3. b3 Nf6, 4. g3 Bg4 A12 English: London defensive system 1.c4 c6, 2. Nf3 d5, 3. b3 Nf6, 4. g3 Bf5 A12 English: Caro-Kann defensive system 1.c4 c6, 2. Nf3 d5, 3. b3 Nf6, 4. Bb2 A12 English: Bled variation 1.c4 c6, 2. Nf3 d5, 3. b3 Nf6, 4 Bb2 g6 A12 English: New York (London) 1.c4 c6, 2. Nf3 d5, 3. b3 Nf6, 4. Bb2 Bf5 A12 English: Capablanca's var. 1.c4 c6, 2. Nf3 d5, 3. b3 Nf6, 4. Bb2 Bg4 A12 English: Caro-Kann, Bogo var. 1.c4 c6, 2. Nf3 d5, 3. b3 Bg4 ------------------------------------ A13 English opening 1.c4 e6 A13 English: Romanishin gambit 1.c4 e6, 2. Nf3 Nf6, 3. g3 a6, 4. Bg2 b5 A13 English opening: Agincourt var. 1.c4 e6, 2. Nf3 d5 A13 English: Wimpey system 1.c4 e6, 2. Nf3 d5, 3. b3 Nf6, 4. Bb2 c5, 5. e3 A13 English opening: Agincourt var. 1.c4 e6, 2. Nf3 d5,3. g3 A13 English: Kurajica defence 1.c4 e6, 2. Nf3 d5, 3. g3 c6 A13 English: Neo-Catalan 1.c4 e6, 2. Nf3 d5, 3. g3 Nf6 A13 English: Neo-Catalan acc. 1.c4 e6, 2. Nf3 d5, 3. g3 Nf6, 4. Bg2 dxc4 ------------------------------------ A14 English: Neo-Catalan declined 1.c4 e6, 2. Nf3 d5, 3. g3 Nf6. 4. Bg2 Be7, 5. 0-0 A14 English: Symmetrical, Keres def. 1.c4 e6, 2. Nf3 d5, 3. g3 Nf6, 4. Bg2 Be7, 5. 0-0 c5, 6. cxd5 fxd5, 7. N1c3 Nc6 ------------------------------------ A15 English, 1...Nf6 (Anglo-Indian def.) 1.c4 Nf6 A15 English orang-utan 1.c4 Nf6, 2. b4 A15 English opening 1.c4 Nf6, 2. Nf3 ------------------------------------ A16 English opening 1.c4 Nf6, 2. Nc3 A16 English: Anglo-Gruenfeld def. 1.c4 Nf6, 2. Nc3 d5 A16 English: Anglo-Gruen, Smyslov def. 1.c4 Nf6, 2 Nc3 d5, 3.cxd5 Nxd5, 4. g3 g6, 5 Bg2 Nxc3 A16 English: Anglo-Gruenfeld, Czech def. 1.c4 Nf6, 2. Nc3 d5, 3. cxd5 Nxd5, 4. g3 g6, 5. Bg2 Nb6 A16 English: Anglo-Gruenfeld defense 1.c4 Nf6, 2. Nc3 d5, 3. cxd5 Nxd5, 4. Nf3 A16 English: Anglo-Gruen, Korchnoi var. 1.c4 Nf6, 2. Nc3 d5, 3. cxd5 Nxd5, 4. Nf3 g6, 5. g3 Bg7, 6. Bg2 e5 ------------------------------------ A17 English opening 1.c4 Nf6, 2.Nc3 e6 A17 English: Queens Indian formation 1.c4 Nf6, 2.Nc3 e6, 3.Nf3 b6 A17 English: Queens Indian, Romanishin variation 1.c4 Nf6, 2.Nc3 e6, 3.Nf3 b6, 4.e4 Bb7, 5. Bd3 A17 English: Nimzo-English opening 1.c4 Nf6, 2.Nc3 e6, 3.Nf3 Bb4 ------------------------------------ A18 --------------------- A18 English: Mikenas-Carls variation 1.c4 Nf6, 2. Nc3 e6, 3. e4 A18 English: Mikenas-Carls, Flohr variation 1.c4 Nf6, 2.Nc3 e6, 3.e4 d5, 4.e5 A18 English: Mikenas-Carls, Kevitz variation 1.c4 Nf6, 2.Nc3 e6, 3. e4 Nc6 ------------------------------------ A19 --------------------- A19 English: Mikenas-Carls, Sicilian variation 1.c4 Nf6, 2.Nc3 e6, 3. e4 c5 ------------------------------------ A20 --------------------- A20 English opening 1.c4 e5 A20 English, Nimzovich variation 1.c4 e5, 2. Nf3 A20 English, Nimzovich, Flohr variation 1.c4 e5, 2.Nf3 e4 ------------------------------------ A21 --------------------- A21 English opening 1.c4 e5, 2. Nc3 A21 English, Troeger defence 1.c4 e5, 2. c3 d6, 3. g3 Be6, 4. Bg2 c6 A21 English, Keres variation 1.c4 e5, 2. Nc3 d6, 3. g3 c6 A21 English opening 1.c4 e5, 2. Nc3 d6, 3. Nf3 A21 English, Smyslov defence 1.c4 e5, 2. Nc3 d6, 3. Nf3 Bg4 A21 English, Kramnik-Shirov counterattack 1.c4 e5, 2. Nc3 Bb4 ------------------------------------ A22 --------------------- A22 English opening 1.c4 e5, 2. Nc3 Nf6 A22 English: Bellon gambit 1.c4 e5, 2. Nc3 Nf6, 3.Nf3 e4, 4. Ng5 b5 A22 English: Carls' Bremen system 1.c4 e5, 2. Nc3 Nf6, 3. g3 A22 English: Bremen, reverse dragon 1.c4 e5, 2. Nc3 Nf6, 3. g3 d5 A22 English: Bremen, Smyslov system 1.c4 e5, 2.Nc3 Nf6, 3. g3 Bb4 ------------------------------------ A23 --------------------- A23 English: Bremen system, Keres variation 1.c4 e5, 2.Nc3 Nf6, 3. g3 c6 ------------------------------------ A24 --------------------- A24 English: Bremen system with ...g6 1.c4 e5, 2. Nc3 Nf6, 3. g3 g6 ------------------------------------ A25 --------------------- A25 English: Sicilian reversed 1.c4 e5, 2. Nc3 Nc6 A25 English: closed system 1.c4 e5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7 A25 English: closed, Taimanov variation 1.c4 e5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.e3 d6, 6.Nge2 Nh6 A25 English: closed, Hort variation 1.c4 e5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.e3 d6, 6.Nge2 Be6 A25 English: closed, 5.Rb1 1.c4 e5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.Rb1 A25 English: closed, 5.Rb1 Taimanov variation 1.c4 e5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.Rb1 Nh6 A25 English: closed system (without ...d6) 1.c4 e5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7. 5.d3 ------------------------------------ A26 --------------------- A26 English: closed system 1.c4 e5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.d3 d6 A26 English: Botvinnik system 1.c4 e5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.d3 d6, 6.e4 ------------------------------------ A27 --------------------- A27 English: three knights system 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 ------------------------------------ A28 --------------------- A28 English: four knights system 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 Nf6 A28 English: Nenarokov variation 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 Nf6, 4.d4 exd4, 5.Nxd4 Bb4, 6.Bg5 h6, 7.Bh4 Bxc3, 8.bxc3 Ne5 A28 English: Bradley Beach variation 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 Nf6, 4.d4 e4 A28 English: four knights, Nimzovich variation 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 Nf6, 4.e4 A28 English: four knights, Marini variation 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 Nf6, 4.a3 A28 English: four knights, Capablanca variation 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 Nf6 d3 A28 English: four knights, 4.e3 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 Nf6, 4.e3 A28 English: four knights, Stean variation 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 Nf6, 4.e3 Bb4, 5.Qc2 0-0, 6.Nd5 Re8, 7.Qf5 A28 English: four knights, Romanishin variation 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 Nf6, 4.e3 Bb4, 5.Qc2 Bxc3 ------------------------------------ A29 --------------------- A29 English: four knights, kingside fianchetto 1.c4 e5, 2.Nc3 Nc6, 3.Nf3 Nf6, 4.g3 ------------------------------------ A30 --------------------- A30 English: symmetrical variation 1.c4 c5 A30 English: symmetrical, hedgehog system 1.c4 c5, 2.Nf3 Nf6, 3.g3 b6, 4.Bg2 Bb7, 5.0-0 0-0, 6.e6 Nc3, 7.Be7 A30 English: symm, hedgehog, flexible formation 1.c4 c5, 2.Nf3 Nf6, 3.g3 b6, 4.Bg2 Bb7, 5.0-0 e6, 6.Nc3 Be7, 7.d4 cxd4, 8.Qxd4 d6,7.Rd1 a6, 10.b3 Bd7 ------------------------------------ A31 --------------------- A31 English: symmetrical, Benoni formation 1.c4 c5, 2.Nf3 Nf6, 3.d4 ------------------------------------ A32 --------------------- A32 English: symmetrical variation 1.c4 c5, 2.Nf3 Nf6, 3.d4 cxd4, 4.Nxd4 e6 ------------------------------------ A33 --------------------- A33 English: symmetrical variation 1.c4 c5, 2.Nf3 Nf6, 3.d4 cxd4, 4.Nxd4 e6, 5.Nc3 Nc6 A33 English: symmetrical, Geller variation 1.c4 c5, 2.Nf3 Nf6, 3.d4 cxd4, 4.Nxd4 e6, 5.Nc3 Nc6, 6.g3 Qb6 ------------------------------------ A34 --------------------- A34 English: symmetrical variation 1.c4 c5, 2.Nc3 A34 English: symmetrical, three knights system 1.c4 c5, 2.Nc3 Nf6, 3.Nf3 d5, 4.cxd5 Nxd5 A34 English: symmetrical variation 1.c4 c5, 2.Nc3 Nf6, 3.g3 A34 English: symmetrical, Rubinstein system 1.c4 c5, 2.Nc3 Nf6, 3.g3 d5, 4.cxd5, 5.Nxd5 Bg2 6.Nc7 ------------------------------------ A35 --------------------- A35 English: symmetrical variation 1.c4 c5, 2.Nc3 Nc6 A35 English: symmetrical, four knights system 1.c4 c5, 2.Nc3 Nc6, 3.Nf3 Nf6 ------------------------------------ A36 --------------------- A36 English: symmetrical variation 1.c4 c5, 2.Nc3 Nc6, 3.g3 A36 English: ultra-symmetrical variation 1.c4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7 A36 English: symm, Botvinnik system reversed 1.c4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.e3 e5 A36 English: symmetrical, Botvinnik system 1.c4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.e4 ------------------------------------ A37 --------------------- A37 English: symmetrical variation 1.c4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.Nf3 A37 English: symm, Botvinnik system reversed 1.c4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.Nf3 e5 ------------------------------------ A38 --------------------- A38 English: symmetrical variation 1.c4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.Nf3 Nf6 A38 English: symmetrical, main line with d3 1.c4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.Nf3 Nf6, 6.0-0 0-0, 7.d3 A38 English: symmetrical, main line with b3 1.c4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.Nf3 Nf6, 6.0-0 0-0, 7.b3 ------------------------------------ A39 --------------------- A39 English: symmetrical, main line with d4 1.c4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.Nf3 Nf6, 6.0-0 0-0, 7.d4 ------------------------------------ A40 --------------------- A40 - A41 Queen's pawn 1.d4 A40 Queen's pawn: Lundin (Kevitz-Mikenas) def. 1.d4 Nc6 A40 Queen's pawn: Charlick (Englund) gambit 1.d4 e5 A40 Queen's pawn: Englund gambit 1.d4 e5, 2.dxe5 Nc6, 3.Nf3 Qe7, 4.Qd5 f6, 5.exf6 Nxf6 A40 Queen's pawn: English defence 1.d4 b6 A40 Polish defence 1.d4 b5 A40 Queen's pawn 1.d4 e6 A40 Queen's pawn: Keres defence 1.d4 e6, 2.c4 b6 A40 Queen's pawn: Franco-Indian (Keres) def. 1.d4 e6, 2.c4 Bb4 A40 Modern defence 1.d4 g6 A40 Beefeater defence 1.d4 g6, 2.c4 Bg7, 3.Nc3 c5, 4.d5 Bxc3, 5.bxc3 f5 ------------------------------------ A41 --------------------- A41 Queen's Pawn 1.d4 d6 A41 Old Indian: Tartakower (Wade) variation 1.d4 d6, 2.Nf3 Bg4 A41 Old Indian defence 1.d4 d6, 2.c4 A41 Modern defence 1.d4 d6, 2.c4 g6, 3.Nc3 Bg7 A41 Robatsch defence: Rossolimo variation 1.e4 g6, 2.d4 Bg7, 3.Nf3 d6, 4.c4 Bg4 ------------------------------------ A42 --------------------- A42 Modern defence: Averbakh system 1.d4 d6, 2.c4 g6, 3.Nc3 Bg7, 4.e4 A42 Pterodactyl defence 1.d4 d6, 2.c4 g6, 3.Nc3 Bg7, 4.e4 c5, 5.Nf3 Qa5 A42 Modern defence: Averbakh system, Randspringer variation 1.d4 d6, 2.c4 g6, 3.Nc3 Bg7, 4.e4 f5 A42 Modern defence: Averbakh system, Kotov var. 1.d4 d6, 2.c4 g6, 3.Nc3 Bg7, 4.e4 Nc6 ------------------------------------ A43 --------------------- A43 - A44 Old Benoni defence 1.d4 c5 A43 Old Benoni: Franco-Benoni defence 1.d4 c5, 2.d5 e6, 3.e4 A43 Old Benoni: Mujannah formation 1.d4 c5, 2.d5 f5 A43 Old Benoni defence 1.d4 c5, 2.d5 Nf6 A43 Woozle defence 1.d4 c5, 2.d5 Nf6, 3.Nc3 Qa5 A43 Old Benoni defence 1.d4 c5, 2.d5 Nf6, 3.Nf3 A43 Hawk (Habichd) defence 1.d4 c5, 2.d5 Nf6, 3.Nf3 c4 A43 Old Benoni defence 1.d4 c5, 2.d5 d6 A43 Old Benoni: Schmid's system 1.d4 c5, 2.d5 d6, 3.Nc3 g6 ------------------------------------ A44 --------------------- A44 Old Benoni defence 1.d4 c5, 2.d5 e5 A44 Semi-Benoni (`blockade variation') 1.d4 c5, 2.d5 e5, 3.e4 d6 ------------------------------------ A45 --------------------- A45 - A46 Queen's pawn game 1.d4 Nf6 A45 Queen's pawn: Bronstein gambit 1.d4 Nf6, 2.g4 A45 Canard opening 1.d4 Nf6, 2.f4 A45 Paleface attack 1.d4 Nf6, 2.f3 A45 Blackmar-Diemer gambit 1.d4 Nf6, 2.f3 d5, 3.e4 A45 Gedult attack 1.d4 Nf6, 2.f3 d5, 3.g4 A45 Trompovsky attack (Ruth, Opovcensky openg) 1.d4 Nf6, 2.Bg5 ------------------------------------ A46 --------------------- A46 Queen's pawn game 1.d4 Nf6, 2.Nf3 A46 Queen's pawn: Torre attack 1.d4 Nf6, 2.Nf3 e6, 3.Bg5 A46 Queen's pawn: Torre attack, Wagner gambit 1.d4 Nf6, 2.Nf3 e6, 3.Bg5 c5, 4.e4 A46 Queen's pawn: Yusupov-Rubinstein system 1.d4 Nf6, 2.Nf3 e6, 3.e3 A46 Doery defence 1.d4 Nf6, 2.Nf3 Ne4 ------------------------------------ A47 --------------------- A47 Queen's Indian defence 1.d4 Nf6, 2.Nf3 b6 A47 Queen's Indian: Marienbad system 1.d4 Nf6, 2.Nf3 b6, 3.g3 Bb7, 4.Bg2 c5 A47 Queen's Indian: Marienbad system, Berg var. 1.d4 Nf6, 2.Nf3 b6, 3.g3 Bb7, 4.Bg2 c5, 5.c4 cxd4, 6.d4 ------------------------------------ A48 --------------------- A48 King's Indian: East Indian defence 1.d4 Nf6, 2.Nf3 g6 A48 King's Indian: Torre attack 1.d4 Nf6, 2.Nf3 g6, 3.Bg5 A48 King's Indian: London system 1.d4 Nf6, 2.Nf3 g6, 3.Bf4 ------------------------------------ A49 --------------------- A49 King's Indian: fianchetto without c4 1.d4 Nf6, 2.Nf3 g6, 3.g3 ------------------------------------ A50 --------------------- A50 Queen's pawn game 1.d4 Nf6, 2.c4 A50 Kevitz-Trajkovich defence 1.d4 Nf6, 2.c4 Nc6 A50 Queen's Indian accelerated 1.d4 Nf6, 2.c4 b6 ------------------------------------ A51 --------------------- A51 - 52 Budapest defence declined 1.d4 Nf6, 2.c4 e5 A51 Budapest: Fajarowicz variation 1.d4 Nf6, 2.c4 e5, 3.dxe5 Ne4 A51 Budapest: Fajarowicz, Steiner variation 1.d4 Nf6, 2.c4 e5, 3.dxe5 Ne4, 4.Qc2 ------------------------------------ A52 --------------------- A52 Budapest defence 1.d4 Nf6, 2.c4 e5, 3.dxe5 Ng4 A52 Budapest: Adler variation 1.d4 Nf6, 2.c4 e5, 3.dxe5, 4.Ng4 Nf3 A52 Budapest: Rubinstein variation 1.d4 Nf6, 2.c4 e5, 3.dxe5 Ng4, 4.Bf4 A52 Budapest: Alekhine variation 1.d4 Nf6, 2.c4 e5, 3.dxe5 Ng4, 4.e4 A52 Budapest: Alekhine, Abonyi variation 1.d4 Nf6, 2.c4 e5, 3.dxe5 Ng4, 4.e4 Nxe5, 5.f4 Nc6 A52 Budapest: Alekhine variation, Balogh gambit 1.d4 Nf6, 2.c4 e5, 3.dxe5 Ng4, 4.e4 d6 ------------------------------------ A53 --------------------- A53 - 55 Old Indian defence 1.d4 Nf6, 2.c4 d6 A53 Old Indian: Janowski variation 1.d4 Nf6, 2.c4 d6, 3.Nc3 Bf5 ------------------------------------ A54 --------------------- A54 Old Indian: Ukrainian variation 1.d4 Nf6, 2.c4 d6, 3.Nc3 e5 A54 Old Indian: Dus-Khotimirsky variation 1.d4 Nf6, 2.c4 d6, 3.Nc3 e5, 4.e3 Nbd7, 5.Bd3 A54 Old Indian: Ukrainian variation, 4.Nf3 1.d4 Nf6, 2.c4 d6, 3.Nc3 e5, 4.Nf3 ------------------------------------ A55 --------------------- A55 Old Indian: main line 1.d4 Nf6, 2.c4 d6, 3.Nc3 e5, 4.Nf3 Nbd7, 5.e4 ------------------------------------ A56 --------------------- A56 A79 Benoni defence 1.d4 Nf6, 2.c4 c5 A56 Benoni defence, Hromodka system 1.d4 Nf6, 2.c4 c5, 3.d5 d6 A56 Vulture defence 1.d4 Nf6, 2.c4 c5, 3.d5 Ne4 A56 Czech Benoni defence 1.d4 Nf6, 2.c4 c5, 3.d5 e5 A56 Czech Benoni: King's Indian system 1.d4 Nf6, 2.c4 c5, 3.d5 e5, 4.Nc3 d6, 5.e4 g6 ------------------------------------ A57 --------------------- A57 Benko gambit 1.d4 Nf6, 2.c4 c5, 3.d5 b5 A57 Benko gambit half accepted 1.d4 Nf6, 2.c4 c5, 3.d5 b5, 4.cxb5 a6 A57 Benko gambit: Zaitsev system 1.d4 Nf6, 2.c4 c5, 3.d5 b5, 4.cxb5 a6, 6.Nc3 A57 Benko gambit: Nescafe Frappe attack 1.d4 Nf6, 2.c4 c5, 3.d5 b5, 4.cxb5 a6, 5.Nc3 axb5, 6.e4 b4, 7.Nb5 d6, 8.Bc4 ------------------------------------ A58 --------------------- A58 Benko gambit accepted 1.d4 Nf6, 2.c4 c5, 3.d5 b5, 4.cxb5 a6, 5.bxa6 A58 Benko gambit: Nd2 variation 1.d4 Nf6, 2.c4 c5, 3.d5 b5, 4.cxb5 a6, 5.bxa6 Ba6, 6.Nc3 d6, 7.Nf3 g6, 8.Nfd2 A58 Benko gambit: fianchetto variation 1.d4 Nf6. 2.c4 c5, 3.d5 b5, 4.cxb5 a6, 5.bxa6 Ba6, 6.Nc3 d6, 7.Nf3 g6, 8.g3 ------------------------------------ A59 --------------------- A59 Benko gambit: 7.e4 1.d4 Nf6, 2.c4 c5, 3.d5 b5, 4.cxb5 a6, 5.bxa6 Bxa6, 6.Nc3 d6, 7.e4 A59 Benko gambit: Ne2 variation 1.d4 Nf6, 2.c4 c5, 3.d5 b5, 4.cxb5 a6, 5.bxa6 Bxa6, 6.Nc3 d6, 7.e4 Bxf1, 8.Kxf1 g6, 9.Nge2 A59 Benko gambit 1.d4 Nf6, 2.c4 c5, 3.d5 b5, 4.cxb5 a6, 5.bxa6 Bxa6, 6.Nc3 d6, 7.e4 Bxf1, 8.Kxf1 g6, 9.g3 A59 Benko gambit: main line 1.d4 Nf6, 2.c4 c5, 3.d5 b5, 4.cxb5 a6, 5.bxa6 Bxa6, 6.Nc3 d6, 7.e4 Bxf1, 8.Kxf1 g6, 9.g3 Bg7, 10. Bg2 0-0, 11.Nf3 ------------------------------------ A60 --------------------- A60 Benoni defence 1.d4 Nf6, 2.c4 c5, 3.d5 e6 ------------------------------------ A61 --------------------- A61 Benoni defence 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.Nf3 g6 A61 Benoni: Uhlmann variation 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5. cxd5 d6, 6.Nf3 g6, 7.Bg5 A61 Benoni: Nimzovich (knight's tour) variation 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.Nf3 g6, 7.Nd2 A61 Benoni: fianchetto variation 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.Nf3 g6, 7.g3 ------------------------------------ A62 --------------------- A62 Benoni: fianchetto variation 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.Nf3 g6, 7.g3 Bg7, 8.Bg2 0-0 ------------------------------------ A63 --------------------- A63 Benoni: fianchetto, 9...Nbd7 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.Nf3 g6, 7.g3 Bg7, 8.Bg2 0-0, 9.0-0 Nbd7 ------------------------------------ A64 --------------------- A64 Benoni: fianchetto, 11...Re8 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.Nf3 g6, 7.g3 Bg7, 8.Bg2 0-0, 9.0-0 Nbd7, 10.Nd2 a6, 11.a4 Re8 ------------------------------------ A65 --------------------- A65 Benoni: 6.e4 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 ------------------------------------ A66 --------------------- A66 Benoni: pawn storm variation 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.f4 A66 Benoni: Mikenas variation 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.f4 Bg7, 8.e5 ------------------------------------ A67 --------------------- A67 Benoni: Taimanov variation 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.f4 Bg7, 8.Bb5 ------------------------------------ A68 --------------------- A68 Benoni: four pawns attack 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.f4 Bg7, 8.Nf3 0-0 ------------------------------------ A69 --------------------- A69 Benoni: four pawns attack, main line 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.f4 Bg7, 8.Nf3 0-0, 9.Be2 Rfe8 ------------------------------------ A70 --------------------- A70 Benoni: classical with e4 and Nf3 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 A70 Benoni: classical without 9.O-O 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 Bg7, 8.Be2 ------------------------------------ A71 --------------------- A71 Benoni: classical, 8.Bg5 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 Bg7, 8.Bg5 ------------------------------------ A72 --------------------- A72 Benoni: classical without 9.O-O 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 Bg7, 8.Be2 0-0 ------------------------------------ A73 --------------------- A73 Benoni: classical, 9.O-O 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 Bg7, 8.Be2 0-0, 9.0-0 ------------------------------------ A74 --------------------- A74 Benoni: classical, 9...a6, 10.a4 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 Bg7, 8.Be2 0-0, 9.0-0 a6, 10.a4 ------------------------------------ A75 --------------------- A75 Benoni: classical with ...a6 and 10...Bg4 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 Bg7, 8.Be2 0-0, 9.0-0 a6, 10.a4 Bg4 ------------------------------------ A76 --------------------- A76 Benoni: classical, 9...Re8 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 Bg7, 8.Be2 0-0, 9.0-0 Re8 ------------------------------------ A77 --------------------- A77 Benoni: classical, 9...Re8, 10.Nd2 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 Bg7, 8.Be2 0-0, 9.0-0 Re8, 10.Nfd2 ------------------------------------ A78 --------------------- A78 Benoni: classical with ...Re8 and ...Na6 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 Bg7, 8.Be2 0-0, 9.0-0 Re8, 10.Nfd2 a6 ------------------------------------ A79 --------------------- A79 Benoni: classical, 11.f3 1.d4 Nf6, 2.c4 c5, 3.d5 e6, 4.Nc3 exd5, 5.cxd5 d6, 6.e4 g6, 7.Nf3 Bg7, 8.Be2 0-0, 9.0-0 Re8, 10.Nfd2 Na6, 11.f3 ------------------------------------ A80 --------------------- A80 - A99 Dutch 1.d4 f5 A80 Dutch, Spielmann gambit 1.d4 f5, 2.Nc3 Nf6, 3.g4 A80 Dutch, Manhattan (Alapin, Ulvestad) variation 1.d4 f5, 2.d3 A80 Dutch, Von Pretzel gambit 1.d4 f5, 2.Qd3 e6, 3.g4 A80 Dutch, Korchnoi attack 1.d4 f5, 2.h3 A80 Dutch, Krejcik gambit 1.d4 f5, 2.g4 A80 Dutch, 2.Bg5 variation 1.d4 f5, 2.Bg5 ------------------------------------ A81 --------------------- A81 Dutch defence 1.d4 f5. 2.g3 A81 Dutch defence, Blackburne variation 1.d4 f5, 2.g3 Nf6, 3.Bg2 e6, 4.Nh3 A81 Dutch defence 1.d4 f5, 2.g3 Nf6, 3.Bg2 g6 A81 Dutch: Leningrad, Basman system 1.d4 f5, 2.g3 g6, 3.Bg2 Bg7, 4.Nf3 c6, 5.0-0 Nh6 A81 Dutch: Leningrad, Karlsbad variation 1.d4 f5, 2.g3 g6, 3.Bg2 Bg7, 4.Nh3 ------------------------------------ A82 --------------------- A82 Dutch: Staunton gambit 1.d4 f5, 2.e4 A82 Dutch: Balogh defence 1.d4 f5, 2.e4 d6 A82 Dutch: Staunton gambit 1.d4 f5, 2.e4 fxe4 A82 Dutch: Staunton gambit, Tartakower var. 1.d4 f5, 2.e4 fxe4, 3.Nc3 Nf6, 4.g4 ------------------------------------ A83 --------------------- A83 Dutch: Staunton gambit, Staunton's line 1.d4 f5, 2.e4 fxe4, 3.Nc3 Nf6, 4.Bg5 A83 Dutch: Staunton gambit, Alekhine variation 1.d4 f5, 2.e4 fxe4, 3.Nc3 Nf6, 4.Bg5 g6, 5.h4 A83 Dutch: Staunton gambit, Lasker variation 1.d4 f5, 2.e4 fxe4, 3.Nc3 Nf6, 4.Bg5 g6, 5.f3 A83 Dutch: Staunton gambit, Chigorin variation 1.d4 f5, 2.e4 fxe4, 3.Nc3 Nf6, 4.Bg5 c6 A83 Dutch: Staunton gambit, Nimzovich variation 1.d4 f5, 2.e4 fxe4, 3.Nc3 Nf6, 4.Bg5 b6 ------------------------------------ A84 --------------------- A84 Dutch defence 1.d4 f5, 2.c4 A84 Dutch defence: Bladel variation 1.d4 f5, 2.c4 g6, 3.Nc3 Nh6 A84 Dutch defence 1.d4 f5, 2.c4 e6 A84 Dutch defence, Rubinstein variation 1.d4 f5, 2.c4 e6, 3.Nc3 A84 Dutch: Staunton gambit deferred 1.d4 f5, 2.c4 e6, 3.e4 A84 Dutch defence 1d4 f5, 2.c4 Nf6 ------------------------------------ A85 --------------------- A85 Dutch with c4 & Nc3 1.d4 f5, 2.c4 Nf6, 3.Nc3 ------------------------------------ A86 --------------------- A86 Dutch with c4 & g3 1.d4 f5, 2.c4 Nf6, 3.g3 A86 Dutch: Hort-Antoshin system 1.d4 f5, 2.c4 Nf6, 3.g3 d6, 4.Bg2 c6, 5.Nc3 Qc7 A86 Dutch: Leningrad variation 1.d4 f5, 2.c4 Nf6, 3.g3 g6 ------------------------------------ A87 --------------------- A87 Dutch: Leningrad, main variation 1.d4 f5, 2.c4 Nf6, 3.g3 g6, 4.Bg2 Bg7, 5.Nf3 ------------------------------------ A88 --------------------- A88 Dutch: Leningrad, main variation with c6 1.d4 f5, 2.c4 Nf6, 3.g3 g6, 4.Bg2 Bg7, 5.Nf3 0-0, 6.0-0 d6, 7.Nc3 c6 ------------------------------------ A89 --------------------- A89 Dutch: Leningrad, main variation with Nc6 1.d4 f5, 2.c4 Nf6, 3.g3 g6, 4.Bg2 Bg7, 5.Nf3 0-0,6.0-0 d6, 7.Nc3 Nc6 ------------------------------------ A90 --------------------- A90 Dutch defence 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 A90 Dutch def: Dutch-Ind (Nimzo-Dutch) var. 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Bb4 A90 Dutch-Indian, Alekhine variation 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Bb4, 5.Bd2 Be7 ------------------------------------ A91 --------------------- A91 Dutch defence 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7 ------------------------------------ A92 --------------------- A92 Dutch defence 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0 A92 Dutch defence, Alekhine variation 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 Ne4 A92 Dutch: stonewall variation 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 d5 A92 Dutch: stonewall with Nc3 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 d5, 7.Nc3 ------------------------------------ A93 --------------------- A93 Dutch: stonewall, Botvinnik variation 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 d5, 7.b3 ------------------------------------ A94 --------------------- A94 Dutch: stonewall with Ba3 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 d5, 7.b3 c6, 8.Ba3 ------------------------------------ A95 --------------------- A95 Dutch: stonewall with Nc3 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 d5, 7.Nc3 c6 A95 Dutch: stonewall: Chekhover variation 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 d5, 7.Nc3 c6, 8.Qc2 Qe8, 9.Bg5 ------------------------------------ A96 --------------------- A96 Dutch: classical variation 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 d6 ------------------------------------ A97 --------------------- A97 Dutch: Ilyin-Genevsky variation 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 d6, 7.Nc3 Qe8 A97 Dutch: Ilyin-Genevsky, Winter variation 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 d6, 7.Nc3 Qe8, 8.Re1 ------------------------------------ A98 --------------------- A98 Dutch: Ilyin-Genevsky variation with Qc2 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0, 6.0-0 d6, 7.Nc3 Qe8, 8.Qc2 ------------------------------------ A99 --------------------- A99 Dutch: Ilyin-Genevsky variation with b3 1.d4 f5, 2.c4 Nf6, 3.g3 e6, 4.Bg2 Be7, 5.Nf3 0-0,6.0-0 d6, 7.Nc3 Qe8, 8.b3 ------------------------------------ B00 --------------------- B00 King's pawn opening 1.e4 B00 Hippopotamus defence 1.e4 Nh6, 2.d4 g6, 3.c4 f6 B00 Corn stalk defence 1.e4 a5 B00 Lemming defence 1.e4 Na6 B00 Fred 1.e4 f5 B00 Barnes defence 1.e4 f6 B00 Fried fox defence 1.e4 f6, 2.d4 Kf7 B00 Carr's defence 1.e4 h6 B00 Reversed Grob (Borg/Basman def/macho Grob) 1.e4 g5 B00 St. George (Baker) defence 1.e4 a6 B00 Owen defence 1.e4 b6 B00 Guatemala defence 1.e4 b6, 2.d4 Ba6a6 B00 KP: Nimzovich defence 1.e4 Nc6 B00 KP: Nimzovich defence, Wheeler gambit 1.e4 Nc6, 2.b4 Nxb4, 3.c3 Nc6, 4.d4 B00 KP: Nimzovich defence 1.e4 Nc6, 2.Nf3 B00 KP: Colorado counter 1.e4 Nc6, 2.Nf3 f5 B00 KP: Nimzovich defence 1.e4 Nc6, 2.d4 B00 KP: Nimzovich defence, Marshall gambit 1.e4 Nc6, 2.d4 d5, 3.exd5 Qxd5, 4.Nc3 B00 KP: Nimzovich defence, Bogolyubov var. 1.e4 Nc6, 2.d4 d5, 3.Nc3 B00 KP: Neo-Mongoloid defence 1.e4 Nc6, 2.d4 f6 ------------------------------------ B01 --------------------- B01 Scandinavian (centre counter) defence 1.e4 d5 B01 Scandinavian defence, Lasker variation 1.e4 d5, 2.exd5 Qxd5, 3.Nc3 Qa5, 4.d4 Nf6, 5.Nf3 Bg4, 6.h3 B01 Scandinavian defence 1.e4 d5, 2.exd5 Qxd5, 3.Nc3 Qa5, 4.d4 Nf6, 5.Nf3 Bf5 B01 Scandinavian defence, Gruenfeld variation 1.e4 d5, 2.exd5 Qxd5, 3.Nc3 Qa5, 4.d4 Nf6, 5.Nf3 Bf5, 6.Ne5 c6, 7.g4 B01 Scandinavian: Anderssen counter-attack 1.e4 d5, 2.exd5 Qxd5, 3.Nc3 Qa5, 4.d4 e5 B01 Scand: Anderssen counter-attack ortho attack 1.e4 d5, 2.exd5 Qxd5, 3.Nc3 Qa5, 4.d4 e5,5.dxe5 Bb4, 6.Bd2 Nc6, 7.Nf3 B01 Scand: Anderssen counter-att., Goteborg sys. 1.e4 d5, 2.exd5 Qxd5, 3.Nc3 Qa5, 4.d4 e5, 5.Nf3 B01 Scand: Anderssen counter-att., Collijn var. 1.e4 d5, 2.exd5 Qxd5, 3.Nc3 Qa5, 4.d4 e5, 5.Nf3 Bg4 B01 Scandinavian, Mieses-Kotrvc gambit 1.e4 d5, 2.exd5 Qxd5, 3.Nc3 Qa5, 4.b4 B01 Scandinavian: Pytel-Wade variation 1.e4 d5, 2.exd5 Qxd5, 3.Nc3 Qd6 B01 Scandinavian defence 1.e4 d5, 2.exd5, 3.Nf6 B01 Scandinavian: Icelandic gambit 1.e4 d5, 2.exd5 Nf6, 3.c4 e6 B01 Scandinavian gambit 1.e4 d5, 2.exd5 Nf6, 3.c4 c6 B01 Scandinavian defence 1.e4 d5, 2.exd5 Nf6, 3.d4 B01 Scandinavian: Marshall variation 1.e4 d5, 2.exd5 Nf6, 3.d4 Nxd5 B01 Scandinavian: Kiel variation 1.e4 d5, 2.exd5 Nf6, 3.d4 Nxd5, 4.c4 Nb4 B01 Scandinavian: Richter variation 1.e4 d5, 2.exd5 Nf6, 3.d4 g6 ------------------------------------ B02 --------------------- B02 - B05 Alekhine's defence 1.e4 Nf6 B02 Alekhine's defence: Scandinavian variation 1.e4 Nf6, 2.Nc3 d5 B02 Alekhine's defence: Spielmann variation 1.e4 Nf6, 2.Nc3 d5, 3.e5 Nfd7, 4.e6 B02 Alekhine's defence: Maroczy variation 1.e4 Nf6, 2.d3 B02 Alekhine's defence: Krejcik variation 1.e4 Nf6, 2.Bc4 B02 Alekhine's def: Mokele Mbembe (Buecker) var. 1.e4 Nf6, 2.e5 Ne4 B02 Alekhine's defence: Brooklyn defence 1.e4 Nf6, 2.e5 Ng8 B02 Alekhine's defence 1.e4 Nf6, 2.e5 Nd5 B02 Alekhine's defence: Kmoch variation 1.e4 Nf6, 2.e5 Nd5, 3.Bc4 Nb6, 4.Bb3 c5, 5.d3 B02 Alekhine's defence: Saemisch attack 1.e4 Nf6, 2.e5 Nd5, 3.Nc3 B02 Alekhine's defence: Welling variation 1.e4 Nf6, 2.e5 Nd5, 3.b3 B02 Alekhine's defence 1.e4 Nf6, 2.e5 Nd5, 3.c4 B02 Alekhine's defence: Steiner variation 1.e4 Nf6, 2.e5 Nd5, 3.c4 Nb6, 4.b3 B02 Alekhine's def: two pawns' (Lasker's) attack 1.e4 Nf6, 2.e5 Nd5, 3.c4 Nb6, 4.c5 B02 Alekhine's def: 2 pawns' att, Mikenas var. 1.e4 Nf6, 2.e5 Nd5, 3.c4 Nb6, 4.c5 Nd5, 5.Bc4 e6, 6.Nc3 d6 ------------------------------------ B03 --------------------- B03 Alekhine's defence 1.e4 Nf6, 2.e5 Nd5, 3.d4 B03 Alekhine's defence: O'Sullivan gambit 1.e4 Nf6, 2.e5 Nd5, 3.d4 b5 B03 Alekhine's defence 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6 B03 Alekhine's defence: Balogh variation 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Bc4 B03 Alekhine's defence 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 B03 Alekhine's defence: exchange variation 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 Nb6, 5.exd6 B03 Alekhine's def: exchange, Karpov var. 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 Nb6, 5.exd6 cxd6, 6.Nf3 g6, 7.Be2 Bg7, 8.0-0 0-0, 9.h3 Nc6, 9.Nc3 Bf5, 10.Bf4 B03 Alekhine's defence: four pawns attack 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 Nb6, 5.f4 B03 Alekhine's def: 4 pawns att, Korchnoi var. 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 Nb6, 5.f4 dxe5, 6.fxe5 Bf5, 7.Nc3 e6, 8.Nf3 Be7, 9.Be2 0-0,10.0-0 f6 B03 Alekhine's def: 4 pawns attack, 6...Nc6 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 Nb6, 5.f4 dxe5, 6.fxe5 Nc6 B03 Alekhine's def: 4 pns, Ilyin-Genevsky v. 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 Nb6, 5.f4 dxe5, 6.fxe5 Nc6, 7.Nf3 Bg4, 8.e6 fxe6, 9.c5 B03 Alekhine's def: 4 pawns attack, 7.Be3 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 Nb6, 5.f4 dxe5, 6.fxe5, 7.Nc6 Be3 B03 Alekhine's def: 4 pns att, Tartakower v. 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 Nb6, 5.f4 dxe5, 6.fxe5 Nc6, 7.Be3 Bf5, 8.Nc3 e6, 9.Nf3 d7, 10.Be2 0-0-0, 11.0-0 Be7 B03 Alekhine's def: 4 pawns att, Planinc var. 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 Nb6,5.f4 g5 B03 Alekhine's def: 4 pns att, fianchetto var. 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.c4 Nb6, 5.f4 g6 B03 Alekhine's def: 4 pns att, Trifunovic var. 1.e4 Nf6, 2.e5 Nd5, 2.d4 d6, 4.c4 Nb6, 5.f4 Bf5 ------------------------------------ B04 --------------------- B04 Alekhine's defence: modern variation 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Nf3 B04 Alekhine's defence: modern, Larsen variation 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Nf3 dxe5 B04 Alekhine's defence: modern, Schmid variation 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Nf3 Nb6 B04 Alekhine's defence: modern, fianchetto var. 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Nf3 g6 B04 Alekhine's defence: modern, Keres var. 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Nf3 g6, 5.Bc4 Nb6, 6.Bb3 Bg7, 7.a4 ------------------------------------ B05 --------------------- B05 Alekhine's defence: modern variation, 4...Bg4 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Nf3 Bg4 B05 Alekhine's defence: modern, Flohr variation 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Nf3 Bg4, 5.Be2 c6 B05 Alekhine's defence: modern, Panov variation 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Nf3 Bg4 h3 B05 Alekhine's defence: modern, Alekhine var. 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Nf3 Bg4, 5.c4 B05 Alekhine's defence: modern, Vitolins attack 1.e4 Nf6, 2.e5 Nd5, 3.d4 d6, 4.Nf3 Bg4, 5.c4 Nb6, 6.d5 ------------------------------------ B06 --------------------- B06 Robatsch (modern) defence 1.e4 g6 B06 Norwegian defence 1.e4 g6, 2.d4 Nf6, 3.e5 Nh5, 4.g4 Ng7 B06 Robatsch (modern) defence 1.e4 g6, 2.d4 Bg7 B06 Robatsch defence: three pawns attack 1.e4 g6, 2.d4 Bg7, 3.f4 B06 Robatsch defence 1.e4 g6, 2.d4 Bg7, 3.Nc3 B06 Robatsch defence: Gurgenidze variation 1.e4 g6, 2.d4 Bg7, 3.Nc3 c6, 4.f4 d5, 5.e5 h5 B06 Robatsch (modern) defence 1.e4 g6, 2.d4 Bg7, 3.Nc3 d6 B06 Robatsch defence: two knights variation 1.e4 g6, 2.d4 Bg7, 3.Nc3 d6, 4.Nf3 B06 Robatsch def: 2 knights, Suttles var. 1.e4 g6, 2.d4 Bg7, 3.Nc3 d6, 4.Nf3 c6 B06 Robatsch defence: Pseudo-Austrian attack 1.e4 g6, 2.d4 Bg7, 3.Nc3 d6, 4.f4 ------------------------------------ B07 --------------------- B07 - B09 Pirc defence 1.e4 d6, 2.d4 Nf6, 3.Nc3 B07 Pirc: Ufimtsev-Pytel variation 1.e4 d6, 2.d4 Nf6, 3.Nc3 c6 B07 Pirc defence 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6 B07 Pirc: 150 attack 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Be3 c6, 5.Qd2 B07 Pirc: Sveshnikov system 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.g3 B07 Pirc: Holmov system 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Bc4 B07 Pirc: Byrne variation 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Bg5 B07 Pirc defence 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Be2 B07 Pirc: Chinese variation 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Be2 Bg7, 5.g4 B07 Pirc: bayonet (Mariotti) attack 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Be2 Bg7, 5.h4 B07 Robatsch defence: Geller's system 1.e4 g6, 2.d4 Bg7, 3.Nf3 d6, 4.c3 ------------------------------------ B08 --------------------- B08 Pirc: classical (two knights) system 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Nf3 B08 Pirc: classical (two knights) system 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Nf3 Bg7 B08 Pirc: classical, h3 system 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Nf3 Bg7, 5.h3 B08 Pirc: classical system, 5.Be2 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Nf3 Bg7, 5.Be2 ------------------------------------ B09 --------------------- B09 Pirc: Austrian attack 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.f4 B09 Pirc: Austrian attack 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.f4 Bg7, 5.Nf3 0-0 B09 Pirc: Austrian attack, 6.e5 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.f4 Bg7, 5.Nf3 0-0, 6.e5 B09 Pirc: Austrian attack, 6.Be3 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.f4 Bg7, 5.Nf3 0-0, 6.Be3 B09 Pirc: Austrian attack, 6.Bd3 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.f4 Bg7, 5.Nf3 0-0, 6.Bd3 B09 Pirc: Austrian attack, dragon formation 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.f4 Bg7, 5.Nf3 c5 B09 Pirc: Austrian attack, Ljubojevic variation 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.f4 Bg7, 5.Bc4 ------------------------------------ B10 --------------------- B10 - B19 Caro-Kann defence 1.e4 c6 B10 Caro-Kann: Hillbilly attack 1.e4 c6, 2.Bc4 B10 Caro-Kann: anti-Caro-Kann defence 1.e4 c6, 2.c4 B10 Caro-Kann: anti-anti-Caro-Kann defence 1.e4 c6, 2.c4 d5 B10 Caro-Kann: closed (Breyer) variation 1.e4 c6, 2.d3 B10 Caro-Kann defence 1.e4 c6, 2.Nc3 B10 Caro-Kann: Goldman (Spielmann) variation 1.e4 c6, 2.Nc3 d5, 3.Qf3 B10 Caro-Kann: two knights variation 1.e4 c6, 2.Nc3 d5, 3.Nf3 ------------------------------------ B11 --------------------- B11 Caro-Kann: two knights, 3...Bg4 1.e4 c6, 2.Nc3 d5, 3.Nf3 Bg4 ------------------------------------ B12 --------------------- B12 Caro-Kann defence 1.e4 c6, 2.d4 B12 de Bruycker defence 1.e4 c6, 2.d4 Na6, 3.Nc3 Nc7 B12 Caro-Masi defence 1.e4 c6, 2.d4 Nf6 B12 Caro-Kann defence 1.e4 c6, 2.d4 d5 B12 Caro-Kann: Tartakower (fantasy) variation 1.e4 c6, 2.d4 d5, 3.f3 B12 Caro-Kann: 3.Nd2 1.e4 c6, 2.d4 d5, 3.Nd2 B12 Caro-Kann: Edinburgh variation 1.e4 c6, 2.d4 d5, 3.Nd2 Qb6 B12 Caro-Kann: advance variation 1.e4 c6, 2.d4 d5, 3.e5 B12 Caro-Kann: advance, Short variation 1.e4 c6, 2.d4 d5, 3.e5 Bf5, 4.c3 e6, 5.Be2 ------------------------------------ B13 --------------------- B13 Caro-Kann: exchange variation 1.e4 c6, 2.d4 d5, 3. exd5 B13 Caro-Kann: exchange, Rubinstein variation 1.e4 c6, 2.d4 d5, 3.exd5 cxd5, 4.Bd3 Nc6, 5.c3 Nf6, 6.Bf4 B13 Caro-Kann: Panov-Botvinnik attack 1.e4 c6, 2.d4 d5, 3.exd5 cxd5, 4.c4 B13 C-Kann: Panov-Botvinnik, Gunderam attack 1.e4 c6, 2.d4 d5, 3.exd5 cxd5, 4.c4 Nf6, 5.c5 B13 Caro-Kann: Panov-Botvinnik attack 1.e4 c6, 2.d4 d5, 3.exd5 cxd5, 4.c4 Nf6, 5.Nc3 B13 C-Kann: Panov-Botvinnik, Herzog defence 1.e4 c6, 2.d4 d5, 3.exd5 cxd5, 4.c4 Nf6, 5.Nc3 Nc6, 6.Bg5 dxc4, 7.d5 Na5 B13 Caro-Kann: Panov-Botvinnik, normal var. 1.e4 c6, 2.d4 d5, 3.exd5 cxd5, 4.c4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6 B13 Caro-Kann: Panov-Botvinnik, Czerniak var. 1.e4 c6, 2.d4 d5, 3.exd5 cxd5, 4.c4 Nf6, 5.Nc3 Nc6, 6.Bg5 Qa5 B13 Caro-Kann: Panov-Botvinnik, Reifir (Spielmann) var 1.e4 c6, 2.d4 d5, 3.exd5 cxd5, 4.c4 Nf6, 5.Nc3 Nc6, 6.Bg5 Qb6 ------------------------------------ B14 ---------------------- B14 Caro-Kann: Panov-Botvinnik attack, 5...e6 1.e4 c6, 2.d4 d5, 3.exd5 cxd5, 4.c4 Nf6, 5.Nc3 e6 B14 Caro-Kann: Panov-Botvinnik attack, 5...g6 1.e4 c6, 2.d4 d5, 3.exd5 cxd5, 4.c4 Nf6, 5.Nc3 g6 ------------------------------------ B15 ---------------------- B15 Caro-Kann defence 1.e4 c6, 2.d4 d5, 3.Nc3 B15 Caro-Kann: Gurgenidze counter-attack 1.e4 c6, 2.d4 d5, 3.Nc3 b5 B15 Caro-Kann: Gurgenidze system 1.e4 c6, 2.d4 d5, 3.Nc3 g6 B15 Caro-Kann: Rasa-Studier gambit 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.f3 B15 Caro-Kann defence 1.e4 c6. 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 B15 Caro-Kann: Alekhine gambit 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Nf6, 5.Bd3 B15 Caro-Kann: Tartakower (Nimzovich) var. 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Nf6, 5.Nxf6 exf6 B15 Caro-Kann: Forgacs variation 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Nf6, 5. Nxf6 ex6, 6.Bc4 ------------------------------------ B16 ---------------------- B16 Caro-Kann: Bronstein-Larsen variation 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Nf6, 5.Nxf6 gxf6 ------------------------------------ B17 --------------------- B17 Caro-Kann: Steinitz variation 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Nd7 ------------------------------------ B18 --------------------- B18 Caro-Kann: classical variation 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Bf5 B18 Caro-Kann: classical, Flohr variation 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Bf5, 5.Ng3 Bg6, 6.Nh3 B18 Caro-Kann: classical, Maroczy attack 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Bf5, 5.Ng3 Bg6, 6.f4 B18 Caro-Kann: classical, 6.h4 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Bf5, 5.Ng3 Bg6, 6.h4 ------------------------------------ B19 --------------------- B19 Caro-Kann: classical, 7...Nd7 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Bf5, 5.Ng3 Bg6, 6.h4 h6, 7.Nf3 Nbd7 B19 Caro-Kann: classical, Spassky variation 1.e4 c6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Bf5, 5.Ng3 Bg6, 6.h4 h6, 7.Nf3 Nbd7, 8.h5 ------------------------------------ B20 --------------------- B20 - B99 Sicilian defence 1.e4 c5 B20 Sicilian: Gloria variation 1.e4 c5, 2.c4 d6, 3.Nc3 Nc6, 4.g3 h5 B20 Sicilian: Steinitz variation 1.e4 c5, 2.g3 B20 Sicilian: wing gambit 1.e4 c5, 2.b4 B20 Sicilian: wing gambit, Santasiere variation 1.e4 c5, 2.b4 cxb4, 3.c4 B20 Sicilian: wing gambit, Marshall variation 1.e4 c5, 2.b4 cxb4, 3.a3 B20 Sicilian: wing gambit, Marienbad variation 1.e4 c5, 2.b4 cxb4, 3.a3 d5, 4.exd5 Qxd5, 5.Bb2 B20 Sicilian: wing gambit, Carlsbad variation 1.e4 c5, 2.b4 cxb4, 3.a3 bxa3 B20 Sicilian: Keres variation (2.Ne2) 1.e4 c5, 2.Ne2 ------------------------------------ B21 --------------------- B21 Sicilian: Grand Prix attack 1.e4 c5, 2.f4 B21 Sicilian: Smith-Morra gambit 1.e4 c5, 2.d4 B21 Sicilian: Andreaschek gambit 1.e4 c5, 2.d4 cxd4, 3.Nf3 e5, 4.c3 B21 Sicilian: Smith-Morra gambit 1.e4 c5, 2.d4 cxd4, 3.c3 B21 Sicilian: Smith-Morra gambit, Chicago def. 1.e4 c5, 2.d4 cxd4, 3.c3 dxc3, 4.Nxc3 Nc6,5.Nf3 d6, 6.Bc4 e6, 7.0-0 a6, 8.Qe2 b5, 9.Bb3 Ra7 ------------------------------------ B22 --------------------- B22 Sicilian: Alapin's variation (2.c3) 1.e4 c5, 2.c3 B22 Sicilian: 2.c3, Heidenfeld variation 1.e4 c5, 2.c3 Nf6, 3.e5 Nd5, 4.Nf3 Nc6, 5.Na3 ------------------------------------ B23 --------------------- B23 Sicilian: closed 1.e4 c5, 2.Nc3 B23 Sicilian: closed, Korchnoi variation 1.e4 c5, 2.Nc3 e6, 3.g3 d5 B23 Sicilian: closed, 2...Nc6 1.e4 c5, 2.Nc3 Nc6 B23 Sicilian: chameleon variation 1.e4 c5, 2.Nc3 Nc6, 3.Nge2 B23 Sicilian: Grand Prix attack 1.e4 c5, 2.Nc3 Nc6, 3.f4 B23 Sicilian: Grand Prix attack, Schofman var. 1.e4 c5, 2.Nc3 Nc6, 3.f4 g6, 4.Nf3 Bg7, 5.Bc4 e6, 6.f5 ------------------------------------ B24 --------------------- B24 Sicilian: closed 1.e4 c5, 2.Nc3 Nc6, 3.g3 B24 Sicilian: closed, Smyslov variation 1.e4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.d3 e6, 6.Be3 Nd4, 7.Ne2 ------------------------------------ B25 --------------------- B25 Sicilian: closed 1.e4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.d3 d6 B25 Sicilian: closed, 6.Ne2 e5 (Botvinnik) 1.e4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.d3 d6, 6.Nge2 e5 B25 Sicilian: closed, 6.f4 1.e4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.d3 d6, 6.f4 B25 Sicilian: closed, 6.f4 e5 (Botvinnik) 1.e4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.d3 d6, 6.f4 e5 ------------------------------------ B26 --------------------- B26 Sicilian: closed, 6.Be3 1.e4 c5, 2.Nc3 Nc6, 3.g3 g6, 4.Bg2 Bg7, 5.d3 d6, 6.Be3 ------------------------------------ B27 --------------------- B27 Sicilian defence 1.e4 c5, 2.Nf3 B27 Sicilian: Stiletto (Althouse) variation 1.e4 c5, 2.Nf3 Qa5 B27 Sicilian: Quinteros variation 1.e4 c5, 2.Nf3 Qc7 B27 Sicilian: Katalimov variation 1.e4 c5, 2.Nf3 b6 B27 Sicilian: Hungarian variation 1.e4 c5, 2.Nf3 g6 B27 Sicilian: Acton extension 1.e4 c5, 2.Nf3 g6, 3.c4 Bh6 ------------------------------------ B28 ---------------------- B28 Sicilian: O'Kelly variation 1.e4 c5, 2.Nf3 a6 ------------------------------------ B29 ---------------------- B29 Sicilian: Nimzovich-Rubinstein variation 1.e4 c5, 2.Nf3 Nf6 B29 Sicilian: Nimzovich-Rubinstein; Rubinstein counter-gambit 1.e4 c5, 2.Nf3 Nf6, 3.e5 Nd5, 4.Nc3 e6, 5.Nxd5 exd5, 6.d4 Nc6 ------------------------------------ B30 ---------------------- B30 Sicilian defence 1.e4 c5, 2.Nf3 Nc6 B30 Sic: Nimzo-Rossolimo attack (without ...d6) 1.e4 c5, 2.Nf3 Nc6, 3.Bb5 ------------------------------------ B31 --------------------- B31 Sic: Nimzo-Rossolimo att (with ...g6, w�out ...d6) 1.e4 c5, 2.Nf3 Nc6, 3.Bb5 g6 B31 Sicilian: Nimzovich-Rossolimo attack, Gurgenidze var 1.e4 c5, 2.Nf3 Nc6, 3.Bb5 g6, 4.0-0 Bg7, 5.Be1 e5, 6.b4 ------------------------------------ B32 --------------------- B32 Sicilian defence 1.e4 c5, 2.Nf3 Nc6, 3.d4 B32 Sicilian: Flohr variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 Qc7 B32 Sicilian: Nimzovich variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 d5 B32 Sicilian: Labourdonnais-Loewenthal variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 e5 B32 Sicilian: Labourdonnais-Loewenthal (Kalashnikov) var 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 e5, 5.Nb5 d6 ------------------------------------ B33 --------------------- B33 Sicilian defence 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 Nf6 B33 Sicilian: Pelikan (Lasker/Sveshnikov) variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e5 B33 Sicilian: Pelikan, Bird variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e5, 6.Nb5 d6, 7.Bg5 a6, 8.N5a3 Be6 B33 Sicilian: Pelikan, Chelyabinsk variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e5, 6.Nb5 d6, 7.Bg5 a6, 8.N5a3, 9.b5 B33 Sicilian: Sveshnikov variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e5, 6.Nb5 d6, 7.Bg5 a6, 8.N5a3 b5, 9.Bxf6 gxf6, 10.Nd5 f5 ------------------------------------ B34 --------------------- B34 Sicilian: accelerated fianchetto, exchange var. 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 g6, 5.Nxc6 B34 Sicilian: accelerated fianchetto, modern variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 g6, 5.Nc3 ------------------------------------ B35 --------------------- B35 Sicilian: accel. fianchetto, modern var. with Bc4 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 g6, 5.Nc3 Bg7, 6.Be3 Nf6, 7.Bc4 ------------------------------------ B36 --------------------- B36 Sicilian: accelerated fianchetto, Maroczy bind 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 g6, 5.c4 B36 Sicilian: accelerated fianchetto, Gurgenidze var. 1.e4 c5, 2.Nf3 Nc6, 3,d4 cxd4, 4.Nxd4 g6, 5.c4 Nf6, 6.Nc3 Nxd4, 7.Qxd4 d6 ------------------------------------ B37 --------------------- B37 Sicilian: accel. fianchetto, Maroczy bind, 5...Bg7 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 g6, 5.c4 Bg7 B37 Sicilian: accelerated fianchetto, Simagin variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 g6, 5.c4 Bg7, 6.Nc2 d6, 7.Be2 Nh6 ------------------------------------ B38 ---------------------- B38 Sicilian: accel. fianchetto, Maroczy bind, 6.Be3 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 g6, 5.c4 Bg7, 6.Be3 ------------------------------------ B39 ---------------------- B39 Sicilian: accelerated fianchetto, Breyer variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 g6, 5.c4 Bg7, 6.Be3 Nf6, 7.Nc3 Ng4 ------------------------------------ B40 ---------------------- B40 Sicilian defence 1.e4 c5, 2.Nf3 e6 B40 Sicilian: Marshall variation 1.e4 c5, 2.Nf3 e6, 3.d4 d5 B40 Sicilian defence 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4 B40 Sicilian: Anderssen variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nf6 B40 Sicilian: Pin variation (Sic. counter-attack) 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Bb4 B40 Sicilian: Pin, Jaffe variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nf6,5.Nc3 Bb4, 6.Bd3 e5 B40 Sicilian: Pin, Koch variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nf6,5.Nc3 Bb4, 6.e5 ------------------------------------ B41 ---------------------- B41 Sicilian: Kan variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 a6 B41 Sicilian: Kan, Maroczy bind (Reti variation) 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 a6, 5.c4 B41 Sicilian: Kan, Maroczy bind - Bronstein var. 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 a6, 5.c4 Nf6, 6.Nc3 Bb4, 7.Bd3 Nc6, 8.Bc2 ------------------------------------ B42 ---------------------- B42 Sicilian: Kan, 5.Bd3 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 a6, 5.Bd3 B42 Sicilian: Kan, Gipslis variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 a6, 5.Bd3 Nf6, 6.0-0 d6, 7.c4 g6 B42 Sicilian: Kan, Polugaievsky variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 a6, 5.Bd3 Bc5 B42 Sicilian: Kan, Swiss cheese variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 a6, 5.Bd3 g6 ------------------------------------ B43 --------------------- B43 Sicilian: Kan, 5.Nc3 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 a6, 5.Nc3 ------------------------------------ B44 --------------------- B44 Sicilian defence 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nc6 B44 Sicilian, Szen (`anti-Taimanov') variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nc6, 5.Nb5 B44 Sicilian, Szen, hedgehog variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nc6, 5.Nb5d6, 6.c4 Nf6, 7.Nc3 a6, 8.Na3 Be7, 9.Be2 0-0,10.0-0 b6 B44 Sicilian, Szen var., Dely-Kasparov gambit 1.e4 c5, 2.Nf3 e6, 2.d4 cxd4, 4.Nxd4 Nc6, 5.Nb5 d6, 6.c4 Nf6, 7.Nc3 a6, 8.Na3 d5 ------------------------------------ B45 --------------------- B45 Sicilian: Taimanov variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nc6, 5.Nc3 B45 Sicilian: Taimanov, American attack 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nc6, 5.Nc3 Nf6, 6.Ndb5 Bb4, 7.Nd6+ ------------------------------------ B46 --------------------- B46 Sicilian: Taimanov variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nc6, 5.Nc3 a6 ------------------------------------ B47 --------------------- B47 Sicilian: Taimanov (Bastrikov) variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nc6, 5.Nc3 Qc7 ------------------------------------ B48 --------------------- B48 Sicilian: Taimanov variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nc6, 5.Nc3 Qc7, 6.Be3 ------------------------------------ B49 --------------------- B49 Sicilian: Taimanov variation 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 Nc6, 5.c3 Qc7, 6.Be3 a6, 7.Be2 ------------------------------------ B50 --------------------- B50 Sicilian 1.e4 c5, 2.Nf3 d6 B50 Sicilian: wing gambit deferred 1.e4 c5, 2.Nf3 d6, 3.b4 ------------------------------------ B51 --------------------- B51 Sic.: Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack 1.e4 c5, 2.Nf3 d6, 3.Bb5 ------------------------------------ B52 --------------------- B52 Sicilian: Canal-Sokolsky attack, 3...Bd7 1.e4 c5, 2.Nf3 d6, 3.Bb5 Bd7 B52 Sicilian: Canal-Sokolsky att., Bronstein gambit 1.e4 c5, 2.N1f3 d6, 3.Bb5 Bd7, 4.Bxd7 Qxd7, 5.0-0 Nc6, 6.c3 Nf6, 7.d4 B52 Sicilian: Canal-Sokolsky att., Sokolsky var. 1.e4 c5, 2.Nf3 d6, 3.Bb5 Bd7, 4.Bxd7 Qxd7, 5.c4 ------------------------------------ B53 --------------------- B53 Sicilian, Chekhover variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Qxd4 B53 Sicilian: Chekhover, Zaitsev variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Qxd4 Nc6, 5.Bb5 Qd7 ------------------------------------ B54 --------------------- B54 Sicilian 1.e4 c5, 2.N1f3 d6, 3.d4 cxd4, 4.Nxd4 B54 Sicilian: Prins (Moscow) variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.f3 ------------------------------------ B55 --------------------- B55 Sicilian: Prins variation, Venice attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.f3 e5, 6.Bb5 ------------------------------------ B56 --------------------- B56 Sicilian 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 B56 Sicilian: Venice attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5. Nc3 e5, 6.Bb5 B56 Sicilian 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6 ------------------------------------ B57 --------------------- B57 Sicilian: Sozin, not Scheveningen 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bc4 B57 Sicilian: Magnus Smith trap 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bc4 g6, 7.Nxc6 bxc6, 8.e5 B57 Sicilian: Sozin, Benko variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bc4 Qb6 ------------------------------------ B58 --------------------- B58 Sicilian: classical 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 d6, 6.Be2 B58 Sicilian: Boleslavsky variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 d6, 6.Be2 e5 B58 Sicilian: Boleslavsky, Louma variation 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 d6, 6.Be2 e5, 7.Nxc6 ------------------------------------ B59 --------------------- B59 Sicilian: Boleslavsky variation, 7.Nb3 1.e4 c5, 2.Nf3 Nc6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 d6, 6.Be2 e5, 7.Nb3 ------------------------------------ B60 --------------------- B60 Sicilian: Richter-Rauzer 1.e4 c5, 2. Nf3 d6, 3. d4 cxd4, 4. Nxd4 Nf6, 5.Nc3 Nc6, 6. Bg5 B60 Sicilian: Richter-Rauzer, Bondarevsky variation 1.e4 c5, 2.Nf3 d6, 3. d4 cxd4, 4. Nxd4 Nf6, 5.Nc3 Nc6, 6. Bg5 g6 B60 Sicilian: Richter-Rauzer, Larsen variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 Bd7 ------------------------------------ B61 --------------------- B61 Sicilian: Richter-Rauzer, Larsen variation, 7.Qd2 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4. Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 Bd7, 7.Qd2 ------------------------------------ B62 --------------------- B62 Sicilian: Richter-Rauzer, 6...e6 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4. Nxd4 Nf6, 5.Nc3 Nc6 6.Bg5 e6 B62 Sicilian: Richter-Rauzer, Podvebrady variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Nb3 B62 Sic.: Richter-Rauzer, Margate (Alekhine) var. 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5. Nc3 Nc6, 6.Bg5 e6, 7.Bb5 B62 Sicilian: Richter-Rauzer, Richter attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4, Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Nxc6 B62 Sicilian: Richter-Rauzer, Keres variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd3 ------------------------------------ B63 --------------------- B63 Sicilian: Richter-Rauzer, Rauzer attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4, Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd2 B63 Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd2 Be7 ------------------------------------ B64 --------------------- B64 Sic.: Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f4 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd2 Be7, 8.0-0 0-0, 9.f4 B64 Sicilian: Richter-Rauzer, Rauzer att., Geller var. 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd2 Be7, 8.0-0 0-0, 9.f4 e5 ------------------------------------ B65 --------------------- B65 Sic.: Richter-Rauzer, Rauzer attack, 7...Be7 def. 9...Nxd4 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd2 Be7, 8.0-0 0-0, 9.f4 Nxd4 B65 Sic: R-R, Rauzer att., 7...Be7 def., 9...Nxd4 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd2 Be7, 8.0-0 0-0, 9.f4 Nxd4, 10.Qxd4 ------------------------------------ B66 --------------------- B66 Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd2 a6 ------------------------------------ B67 --------------------- B67 Sic.: Richter-Rauzer, Rauzer attack, 7...a6 def. 8...Bd7 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd2 a6, 8.0-0-0 Bd7 ------------------------------------ B68 --------------------- B68 Sic.: Richter-Rauzer, Rauzer attack, 7...a6 def. 9...Be7 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd2 a6, 8.0-0-0 Bd7, 9.f4 Be7 ------------------------------------ B69 --------------------- B69 Sic.: Richter-Rauzer, Rauzer attack, 7...a6 def. 11.Bxf6 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6, 7.Qd2 a6, 8.0-0-0 Bd7, 9.f4 Be7, 10.Nf3 b5, 11.Bxf6 ------------------------------------ B70 --------------------- B70 Sicilian: dragon variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, ------------------------------------ B71 --------------------- B71 Sicilian: dragon, Levenfish variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.f4 B71 Sicilian: dragon, Levenfish; Flohr variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.f4 Nbd7 ------------------------------------ B72 --------------------- B72 Sicilian: dragon, 6.Be3 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 B72 Sicilian: dragon, classical attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6 6.Be3 Bg7, 7.Be2 B72 Sicilian: dragon, classical, Amsterdam var 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6 6.Be3 Bg7, 7.Be2 Nc6, 8.Qd2 B72 Sicilian: dragon, classical, Grigoriev var 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.Qd2 0-0, 9.0-0-0 B72 Sicilian: dragon, classical, Nottingham var 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.Nb3 ------------------------------------ B73 --------------------- B73 Sicilian: dragon, classical, 8.O-O 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.0-0 B73 Sicilian: dragon, classical, Zollner gambit 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.0-0 0-0, 9.f4 Qb6, 10.e5 B73 Sicilian: dragon, classical, Richter variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.0-0 0-0, 9.Qd2 ------------------------------------ B74 --------------------- B74 Sicilian: dragon, classical, 9.Nb3 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.0-0 0-0, 9.Nb3 B74 Sicilian: dragon, classical, Stockholm attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.0-0 0-0, 9.Nb3 Be6, 10.f4 Na5, 11.f5 Bc4, 12.Nxa5 Bxe2, 13.Qxe2 Qa5, 14.g4 B74 Sicilian: dragon, classical, Spielmann variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.0-0 0-0, 9.Nb3 Be6, 10.f4 Na5, 11.f5 Bc4, 12.Bd3 B74 Sicilian: dragon, classical, Bernard defence 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.0-0 0-0, 9.Nb3 Be6, 10.f4 Na5, 11.f5 Bc4, 12.Bd3 Bxd3, 13.cxd3 d5 B74 Sicilian: dragon, classical, Reti-Tartakower var 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.0-0 0-0, 9.Nb3 Be6, 10.f4 Qc8 B74 Sicilian: dragon, classical, Alekhine variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.Be2 Nc6, 8.0-0 0-0, 9.Nb3 a5 ------------------------------------ B75 --------------------- B75 Sicilian: dragon, Yugoslav attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.f3 ------------------------------------ B76 --------------------- B76 Sicilian: dragon, Yugoslav attack, 7...O-O 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.f3 0-0 B76 Sicilian: dragon, Yugoslav attack, Rauser var 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.f3 0-0, 8.Qd2 Nc6, 9.0-0-0 ------------------------------------ B77 --------------------- B77 Sicilian: dragon, Yugoslav attack, 9.Bc4 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.f3 0-0, 8.Qd2 Nc6, 9.Bc4 B77 Sicilian: dragon, Yugoslav attack, Byrne var 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.f3 0-0, 8.Qd2 Nc6, 9.Bc4 a5 B77 Sicilian: dragon, Yugoslav attack, 9...Bd7 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.f3 0-0, 8.Qd2 Nc6, 9.Bc4 Bd7 ------------------------------------ B78 --------------------- B78 Sicilian: dragon, Yugoslav attack, 10.O-O-O 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 Bg7, 7.f3 0-0, 8.Qd2 Nc6, 9.Bc4 Bd7, 10.0-0-0 ------------------------------------ B79 --------------------- B79 Sicilian: dragon, Yugoslav attack, 12.h4 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 g6, 6.Be3 g7, 7.f3 0-0, 8.Qd2 Nc6, 9.Bc4 Bd7, 10.0-0-0 Qa5, 11.Bb3 Rfc8, 12.h4 ------------------------------------ B80 --------------------- B80 Sicilian: Scheveningen variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6 B80 Sicilian: Scheveningen, English variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be3 a6, 7.Qd2 B80 Sicilian: Scheveningen, Vitolins variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Bb5 B80 Sicilian: Scheveningen, fianchetto variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.g3 ------------------------------------ B81 --------------------- B81 Sicilian: Scheveningen, Keres attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.g4 ------------------------------------ B82 --------------------- B82 Sicilian: Scheveningen, 6.f4 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.c3 e6, 6.f4 B82 Sicilian: Scheveningen, Tal variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.f4 Nc6, 7.Be3 Be7, 8.Qf3 ------------------------------------ B83 --------------------- B83 Sicilian: Scheveningen, 6.Be2 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 B83 Sicilian: modern Scheveningen 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 Nc6 B83 Sicilian: modern Scheveningen, main line 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 Nc6, 7.0-0 Be7, 8.Be3 0-0, 9.f4 B83 Sic: mod Scheveningen, main line with Nb3 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 Nc6, 7. 0-0 Be7, 8.Be3 0-0, 9.f4 d7, 10.Nb3 ------------------------------------ B84 --------------------- B84 Sicilian: Schev.(Paulsen), classical var 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 a6 B84 Sicilian: Scheveningen, classical, Nd7 system 1.e4 c5, 2.N1f3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 a6, 7.0-0 Nd7 B84 Sicilian: Schev(Paulsen), classical variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 a6, 7.0-0 Qc7 ------------------------------------ B85 --------------------- B85 Sicil: Scheven, classical var with ...Qc7 &...Nc6 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 a6, 7.0-0 Qc7, 8.f4 Nc6 B85 Sicilian: Schev, classical, Maroczy system 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 a6, 7.0-0 Qc7, 8.f4 Nc6, 9.Kh1 Be7, 10.a4 B85 Sicilian: Scheveningen, classical 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 a6, 7.0-0 Qc7, 8.f4 Nc6, 9.Be3 B85 Sicilian: Scheveningen, classical main line 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Be2 a6, 7.0-0 Qc7, 8.f4 Nc6, 9.Be3 Be7, 10.Qe1 0-0 ------------------------------------ B86 --------------------- B86 Sicilian: Sozin attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Bc4 ------------------------------------ B87 --------------------- B87 Sicilian: Sozin with ...a6 and ...b5 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Bc4 a6, 7.Bb3 b5 ------------------------------------ B88 --------------------- B88 Sicilian: Sozin, Leonhardt variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Bc4 Nc6 B88 Sicilian: Sozin, Fischer variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Bc4 Nc6, 7.Bb3 Be7, 8.Be3 0-0, 9.f4 ------------------------------------ B89 --------------------- B89 Sicilian: Sozin, 7.Be3 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Bc4 Nc6, 7.Be3 B89 Sicilian: Velimirovic attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 e6, 6.Bc4 Nc6, 7.Be3 Be7, 8.Qe2 ------------------------------------ B90 --------------------- B90 Sicilian: Najdorf 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6 B90 Sicilian: Najdorf, Adams attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.h3 B90 Sicilian: Najdorf, Lipnitzky attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bc4 B90 Sicilian: Najdorf, Byrne (English) attack 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Be3 ------------------------------------ B91 --------------------- B91 Sicilian: Najdorf, Zagreb (fianchetto) variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.g3 ------------------------------------ B92 --------------------- B92 Sicilian: Najdorf, Opovcensky variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Be2 ------------------------------------ B93 --------------------- B93 Sicilian: Najdorf, 6.f4 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.f4 ------------------------------------ B94 --------------------- B94 Sicilian: Najdorf, 6.Bg5 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 B94 Sicilian: Najdorf, Ivkov variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 Nbd7, 7.Bc4 Qa5, 8.Qd2 e6, 9.0-0-0 b5, 10.Bb3 Bb7, 11.Rhe1 Nc5, 12.e5 ------------------------------------ B95 --------------------- B95 Sicilian: Najdorf, 6...e6 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6 ------------------------------------ B96 --------------------- B96 Sicilian: Najdorf, 7.f4 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6, 7.f4 B96 Sicilian: Najdorf, Polugayevsky variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6, 7.f4 b5 B96 Sicilian: Najdorf, Polugayevsky, Simagin var 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6, 7.f4 b5, 8.e5 dxe5, 9.fxe5 Qc7, 10.Qe2 ------------------------------------ B97 --------------------- B97 Sicilian: Najdorf, 7...Qb6 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6, 7.f4 Qb6 B97 Sicilian: Najdorf, Poisoned pawn variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6, 7.f4 Qb6, 8.Qd2 Qxb2, 9.Rb1 Qa3 ------------------------------------ B98 --------------------- B98 Sicilian: Najdorf, 7...Be7 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6, 7.f4 Be7 B98 Sicilian: Najdorf, Browne variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6, 7.f4 Be7, 8.Qf3 h6, 9.Bh4 Qc7 B98 Sicilian: Najdorf, Goteborg (Argentine) var 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6, 7.f4 Be7, 8.Qf3 h6, 9.Bh4 g5 B98 Sicilian: Najdorf variation 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6, 7.f4 Be7, 8.Qf3 Qc7 ------------------------------------ B99 --------------------- B99 Sicilian: Najdorf, 7...Be7 main line 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 a6, 6.Bg5 e6, 7.f4 Be7, 8.Qf3 Qc7, 9.0-0-0 Nd7 ------------------------------------ C00 --------------------- C00 - C19 French defence 1.e4 e6 C00 French defence, Steiner variation 1.e4 e6, 2.c4 C00 French: Reti (Spielmann) variation 1.e4 e6, 2.b3 C00 French: Steinitz attack 1.e4 e6, 2.e5 C00 French: Labourdonnais variation 1.e4 e6, 2.f4 C00 French defence 1.e4 e6, 2.Nf3 C00 French: Wing gambit 1.e4 e6, 2.Nf3 d5, 3.e5 c5, 4.b4 C00 French defence 1.e4 e6, 2.Nc3 C00 French: Pelikan variation 1.e4 e6, 2.Nc3 d5, 3.f4 C00 French: Two knights variation 1.e4 e6, 2.Nc3 d5 Nf3 C00 French: Chigorin variation 1.e4 e6, 2.Qe2 C00 French: King's Indian attack 1.e4 e6, 2.d3 C00 French: Reversed Philidor formation 1.e4 e6, 2.d3 d5, 3.Nd2 Nf6, 4.Nf3 Nc6, 5.Be2 C00 French defence 1.e4 e6, 2.d4 C00 Lengfellner system 1.e4 e6, 2.d4 d6 C00 St. George defence 1.e4 e6, 2.d4 a6 C00 French defence 1.e4 e6, 2.d4 d5 C00 French: Schlechter variation 1.e4 e6, 2.d4 d5, 3.Bd3 C00 French: Alapin variation 1.e4 e6, 2.d4 d5, 3.Be3 ------------------------------------ C01 --------------------- C01 French: exchange variation 1.e4 e6, 2.d4 d5, 3.exd5 C01 French: exchange, Svenonius variation 1.e4 e6, 2.d4 d5, 3.exd5 exd5, 4.Nc3 Nf6, 5.Bg5 C01 French: exchange, Bogolyubov variation 1.e4 e6, 2.d4 d5, 3.exd5 exd5, 4.Nc3 Nf6, 5.Bg5 Nc6 ------------------------------------ C02 --------------------- C02 French: advance variation 1.e4 e6, 2.d4 d5, 3.e5 C02 French: advance, Steinitz variation 1.e4 e6, 2.d4 d5, 3.e5 c5, 4.dxc5 C02 French: advance, Nimzovich variation 1.e4 e6, 2.d4 d5, 3.e5 c5, 4.Qg4 C02 French: advance, Nimzovich system 1.e4 e6, 2.d4 d5, 3.e5 c5, 4.Nf3 C02 French: advance variation 1.e4 e6, 2.d4 d5, 3.e5 c5, 4.c3 C02 French: advance, Wade variation 1.e4 e6, 2.d4 d5, 3.e5 c5, 4.c3 Qb6, 5.Nf3 Bd7 C02 French: advance variation 1.e4 e6, 2.d4 d5, 3.e5 c5, 5.c3 Nc6 C02 French: advance, Paulsen attack 1.e4 e6, 2.d4 d5, 3.e5 c5, 4.c3 Nc6 Nf3 C02 French: advance, Milner-Barry gambit 1.e4 e6, 2.d4 d5, 3.e5 c5, 4.c3 Nc6, 5.Nf3 Qb6, 6.Bd3 C02 French: advance, Euwe variation 1.e4 e6, 2.d4 d5, 3.e5 c5, 4.c3 Nc6, 5.Nf3 Bd7 ------------------------------------ C03 --------------------- C03 French: Tarrasch 1.e4 e6, 2.d4 d5, 3.Nd2 C03 French: Tarrasch, Haberditz variation 1.e4 e6, 2.d4 d5, 3.Nd2 f5 C03 French: Tarrasch, Guimard variation 1.e4 e6, 2.d4 d5, 3.Nd2 Nc6 ------------------------------------ C04 --------------------- C04 French: Tarrasch, Guimard main line 1.e4 e6, 2.d4 d5, 3.Nd2 Nc6, 4.Nf3 Nf6 ------------------------------------ C05 --------------------- C05 French: Tarrasch, closed variation 1.e4 e6, 2.d4 d5, 3.Nd2 Nf6 C05 French: Tarrasch, Botvinnik variation 1.e4 e6, 2.d4 d5, 3.Nd2 Nf6, 4.e5 Nfd7, 5.Bd3 c5, 6.c3 b6 C05 French: Tarrasch, closed variation 1.e4 e6, 2.d4 d5, 3.Nd2 Nf6, 4.e5 Nfd7, 5.Bd3 c5, 6.c3 Nbc6 ------------------------------------ C06 --------------------- C06 French: Tarrasch, closed variation, main line 1.e4 e6, 2.d4 d5, 3.Nd2 Nf6, 4.e5 Nfd7, 5.Bd3 c5, 6.c3 Nc6, 7.Ne2 d4, 8. cxd4 C06 French: Tarrasch, Leningrad variation 1.e4 e6, 2.d4 d5, 3.Nd2 Nf6, 4.e5 Nfd7, 5.Bd3 c5, 6.c3 Nc6, 7.Ne2 d4, 8.cxd4 Nb6 ------------------------------------ C07 --------------------- C07 French: Tarrasch, open variation 1.e4 e6, 2.d4 d5, 3.Nd2 c5 C07 French: Tarrasch, Eliskases variation 1.e4 e6, 2.d4 d5, 3.Nd2 c5, 4.exd5 Qxd5, 5.Nf3 cxd4, 6.Bc4 Qd8 ------------------------------------ C08 --------------------- C08 French: Tarrasch, open, 4.ed ed 1.e4 e6, 2.d4 d5, 3.Nd2 c5, 4.exd5 exd5 ------------------------------------ C09 --------------------- C09 French: Tarrasch, open variation, main line 1.e4 e6, 2.d4 d5, 3.Nd2 c5, 4.exd5 exd5, 5.Nf3 Nc6 ------------------------------------ C10 --------------------- C10 French: Paulsen variation 1.e4 e6, 2.d4 d5, 3.Nc3 C10 French: Marshall variation 1.e4 e6, 2.d4 d5, 3.Nc3 c5 C10 French: Rubinstein variation 1.e4 e6, 2.d4 d5, 3.Nc3 dxe4 C10 French: Fort Knox variation 1.e4 e6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Bd7, 5.Nf3 Bc6 C10 French: Rubinstein variation 1.e4 e6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Nd7 C10 French: Rubinstein, Capablanca line 1.e4 e6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Nd7, 6.Nf3 Nf6, 7.Nxf6 Nxf6, 8.Ne5 C10 French: Frere (Becker) variation 1.e4 e6, 2.d4 d5, 3.Nc3 dxe4, 4.Nxe4 Qd5 ------------------------------------ C11 --------------------- C11 French defence 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6 C11 French: Swiss variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bd3 C11 French: Henneberger variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Be3 C11 French: Steinitz variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.e5 C11 French: Steinitz, Bradford attack 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.e5 Nfd7, 5.f4 c5, 6.dxc5 Bxc5, 7.Qg4 C11 French: Steinitz variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.e5 Nfd7, 5.f4 c5, 6.dxc5 Nbc6 C11 French: Steinitz, Brodsky-Jones variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.e5 Nfd7, 5.f4 c5, 6.dxc5 Nbc6, 7.a3 Bxc5, 8.Qg4 0-0, 9.Nf3 f6 C11 French: Steinitz variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.e5 Nfd7, 5.f4 c5, 6.Nf3 C11 French: Steinitz, Boleslavsky variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.e5 Nfd7, 5.f4 c5, 6.Nf3 Nc6, 7.Be3 C11 French: Steinitz, Gledhill attack 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.e5 Nd7, 5.Qg4 C11 French: Burn variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 dxe4 ------------------------------------ C12 --------------------- C12 French: MacCutcheon variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4 C12 French: MacCutcheon, Bogolyubov variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4, 5.exd5 Qxd5, 6.Bxf6 gxf6, 7.Qd2 Qa5 C12 French: MacCutcheon, advance variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4 e5 C12 French: MacCutcheon, Chigorin variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4, 5.e5 h6, 6.exf6 C12 French: MacCutcheon, Grigoriev variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4, 5.e5 h6, 6.exf6 hxg5, 7.fxg7 Rg8, 8.h4 gxh4, 9.Qg4 C12 French: MacCutcheon, Bernstein variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4 e5, 5.h6 h4 C12 French: MacCutcheon, Janowski variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4, 5.e5 h6, 6.Be3 C12 French: MacCutch., Dr. Olland (Dutch) var 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4, 5.e5 h6, 6.Bc1 C12 French: MacCutcheon, Tartakower variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4, 5.e5 h6, 6.Bd2 Nfd7 C12 French: MacCutcheon, Lasker variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4, 5.e5 h6, 6.Bd2 Bxc3 C12 French: MacCutcheon, Duras variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4, 5.e5 h6, 6.Bd2 Bxc3, 7.bxc3 Nxe4, 8.Qg4 0-0, 9.Bc1 C12 French: MacCutch, Lasker variation, 8...g6 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Bb4, 5.e5 h6, 6.Bd2 Bxc3, 7.bxc3 Ne4, 8.Qg4 g6 ------------------------------------ C13 --------------------- C13 French: classical 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7 C13 French: classical, Anderssen variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.Bxf6 C13 French: classical, Anderssen-Richter var. 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.Bxf6 Bxf6, 6.e5 Be7, 7.Qg4 C13 French: classical, Vistaneckis (Nimzovich) var 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Ng8 C13 French: classical, Frankfurt variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Ng8, 6.Be3 b6 C13 French: classical, Tartakower variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Ne4 C13 French: Albin-Alekhine-Chatard attack 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nd7, 6.h4 C13 French: Albin-Alekhine-Chatard attack, Maroczy var. 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nd7 6.h4 a6 C13 French: Albin-Alekhine-Chatard attack, Breyer var. 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nd7 6.h4 c5 C13 French: Albin-Alekhine-Chatard attack, Teichmann var. 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nd7 6.h4 f6 C13 French: Albin-Alekhine-Chatard attack, Spielmann var. 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nd7 6.h4 0-0 ------------------------------------ C14 ------------------- C14 French: classical variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nfd7, 6.Bxe7 Qxe7 C14 French: classical, Tarrasch variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nfd7, 6.Bxe7 Qxe7, 7.Bd3 C14 French: classical, Rubinstein variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nfd7, 6.Bxe7 Qxe7, 7.Qd2 C14 French: classical, Alapin variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nfd7, 6.Bxe7 Qxe7, 7.Nb5 C14 French: classical, Pollock variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nfd7, 6.Bxe7 Qxe7, 7.Qg4 C14 French: classical, Steinitz variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nfd7, 6.Bxe7 Qxe7, 7.f4 C14 French: classical, Stahlberg variation 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6, 4.Bg5 Be7, 5.e5 Nfd7, 6.Bxe7 Qxe7, 7.f4 0-0, 8.Nf3 c5, 9.Qd2 Nc6, 10.0-0-0 c4 ------------------------------------ C15 --------------------- C15 French: Winawer (Nimzovich) variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4 C15 French: Winawer, Kondratiyev variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.Bd3 c5, 5.exd5 Qd5, 6.Bd2 C15 French: Winawer, fingerslip variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.Bd2 C15 French: Winawer, Alekhine (Maroczy) gambit 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.Ne2 C15 French: Winawer, Alekhine gambit, Alatortsev var. 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.Ne2 dxe4, 5.a3 Be7, 6.Nxe4 Nf6, 7.Ng3 0-0, 8.Be2 Nc6 C15 French: Winawer, Alekhine gambit 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.Ne2 dxe4, 5.a3 Bxc3 C15 French: Winawer, Alekhine gambit, Kan var 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.Ne2 dxe4, 5.a3 Bxc3, 6.Nxc3 Nc6 ------------------------------------ C16 ---------------------- C16 French: Winawer, advance variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 C16 French: Winawer, Petrosian variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4. e5 Qd7 ------------------------------------ C17 --------------------- C17 French: Winawer, advance variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5 C17 French: Winawer, advance, Bogolyubov var 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.Bd2 C17 French: Winawer, advance, Russian variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.Qg4 C17 French: Winawer, advance, 5.a3 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.a3 C17 French: Winawer, advance, Rauzer variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.a3 cxd4, 6.axb4 dxc3, 7.Nf3 ------------------------------------ C18 --------------------- C18 French: Winawer, advance variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.a3 Bxc3,6.bxc3 C18 French: Winawer, classical variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.a3 Bxc3, 6.bxc3 Qc7 ------------------------------------ C19 ---------------------- C19 French: Winawer, advance, 6...Ne7 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.a3 Bxc3, 6.bxc3 Ne7 C19 French: Winawer, advance, Smyslov variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.a3 Bxc3, 6.bxc3 Ne7, 7.a4 C19 French: Winawer, advance, positional main line 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.a3 Bxc3, 6.bxc3 Ne7, 7.Nf3 C19 French: Winawer, adv, poisoned pawn variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.a3 Bxc3, 6.bxc3 Ne7, 7.Qg4 C19 French: Winawer, adv. poisoned pawn, Euwe-Gligoric variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.a3 Bxc3, 6.bxc3 Ne7, 7.Qg4 Qc7, 8.Qxg7 Rg8, 9.Qxh7 cxd4, 10.Kd1 C19 French: Winawer, adv. pois. pawn, Konstantinopolsky variation 1.e4 e6, 2.d4 d5, 3.Nc3 Bb4, 4.e5 c5, 5.a3 Bxc3, 6.bxc3 Ne7, 7.Qg4 Qc7, 8.Qxg7 Rg8, 9.Qxh7 cxd4, 10.Ne2 ------------------------------------ C20 --------------------- C20 King's pawn game 1.e4 e5 C20 KP: Indian opening 1.e4 e5, 2.d3 C20 KP: Mengarini's opening 1.e4 e5, 2.a3 C20 KP: King's head opening 1.e4 e5, 2.f3 C20 KP: Patzer opening 1.e4 e5, 2.Qh5 C20 KP: Napoleon's opening 1.e4 e5, 2.Qf3 C20 KP: Lopez opening 1.e4 e5, 2.c3 C20 Alapin's opening 1.e4 e5, 2.Ne2 ------------------------------------ C21 --------------------- C21 - C22 Centre game 1.e4 e5, 2.d4 exd4 C21 Centre game, Kieseritsky variation 1.e4 e5, 2.d4 exd4, 3.Nf3 c5, 4.Bc4 b5 C21 Halasz gambit 1.e4 e5, 2.d4 exd4, 3.f4 C21 Danish gambit 1.e4 e5, 2.d4 exd4, 3.c3 C21 Danish gambit: Collijn defence 1.e4 e5, 2.d4 exd4, 3.c3 dxc3, 4.Bc4 cxb2, 5.Bxb2 Qe7 C21 Danish gambit: Schlechter defence 1.e4 e5, 2.d4 exd4, 3.c3 dxc3, 4.Bc4 cxb2, 5.Bxb2 d5 C21 Danish gambit: Soerensen defence 1.e4 e5, 2.d4 exd4, 3.c3 d5 C21 Centre game 1.e4 e5, 2.d4 exd4, 3.Qxd4 ------------------------------------ C22 --------------------- C22 Centre game 1.e4 e5, 2.d4 exd4, 3.Qxd4 Nc6 C22 Centre game: Paulsen attack 1.e4 e5, 2.d4 exd4, 3.Qxd4 Nc6, 4.Qe3 C22 Centre game: Charousek variation 1.e4 e5, 2.d4 exd4, 3.Qxd4 Nc6, 4.Qe3 Bb4+, 5.c3 Be7 C22 Centre game: l'Hermet variation 1.e4 e5, 2.d4 exd4, 3.Qxd4 Nc6, 4.Qe3 f5 C22 Centre game: Berger variation 1.e4 e5, 2.d4 exd4, 3.Qxd4 Nc6, 4.Qe3 Nf6 C22 Centre game: Kupreichik variation 1.e4 e5, 2.d4 exd4, 3.Qxd4 Nc6, 4.Qe3 Nf6, 5.Nc3 Bb4, 6.d2 0-0, 7.0-0-0 Re8, 8.Bc4 d6, 9.Nh3 C22 Centre game: Hall variation 1.e4 e5, 2.d4 exd4, 3.Qxd4 Nc6, 4.Qc4 ------------------------------------ C23 --------------------- C23 - C24 Bishop's opening 1.e4 e5, 2.Bc4 C23 Bishop's opening: Philidor counter-attack 1.e4 e5, 2.Bc4 c6 C23 Bishop's opening: Lisitsyn variation 1.e4 e5, 2.Bc4 c6, 3.d4 d5, 4. exd5 cxd5, 5.Bb5+ Bd7, 6.Bxd7 Nxd7, 7.dxe5 Nxe5, 8.Ne2 C23 Bishop's opening: Calabrese counter-gambit 1.e4 e5, 2.Bc4 f5 C23 Bishop's opening: Calabrese c-gambit, Jaenisch var. 1.e4 e5, 2.Bc4 f5, 3.d3 C23 Bishop's opening: Classical variation 1.e4 e5, 2.Bc4 Bc5 C23 Bishop's opening: Lopez gambit 1.e4 e5, 2.Bc4 Bc5, 3.Qe2 Nc6, 4.c3 Nf6, 5.f4 C23 Bishop's opening: Philidor variation 1.e4 e5, 2.Bc4 Bc5, 3.c3 C23 Bishop's opening: Pratt variation 1.e4 e5, 2.Bc4 Bc5, 3.c3 Nf6, 4.d4 exd4, 5.e5 d5, 6.exf6 dxc4, 7.Qh5 0-0 C23 Bishop's opening: Lewis counter-gambit 1.e4 e5, 2.Bc4 Bc5, 3.c3 d5 C23 Bishop's opening: del Rio variation 1.e4 e5, 2.Bc4 Bc5, 3.c3 Qg5 C23 Bishop's opening: Lewis gambit 1.e4 e5, 2.Bc4 Bc5, 3.d4 C23 Bishop's opening: Wing gambit 1.e4 e5, 2.Bc4 Bc5, 3.b4 C23 Bishop's open: MacDonnell double gambit 1.e4 e5, 2.Bc4 Bc5, 3.b4 cxb4, 4.f4 C23 Bishop's opening: Four pawns' gambit 1.e4 e5, 2.Bc4 Bc5, 3.b4 Bxb4, 4.f4 exf4, 5.Nf3 Be7, 6.d4 Bh4+, 7.g3 fxg3, 8.0-0 gxh2, 9.Kh1 ------------------------------------ C24 --------------------- C24 Bishop's opening: Berlin defence 1.e4 e5, 2.Bc4 Nf6 C24 Bishop's opening: Greco gambit 1.e4 e5, 2.Bc4 Nf6, 3.f4 C24 Bishop's opening: Ponziani gambit 1.e4 e5, 2.Bc4 Nf6, 3.d4 C24 Bishop's opening: Urusov gambit 1.e4 e5, 2.Bc4 Nf6, 3.d4 exd4, 4.Nf3 C24 Bishop's open: Urusov gambit, Panov var 1.e4 e5, 2.Bc4 Nf6, 3.d4 exd4, 4.Nf3 d5, 5.exd5 Bb4, 6.c3 Qe7 ------------------------------------ C25 --------------------- C25 - C29 Vienna game 1.e4 e5, 2.Nc3 C25 Vienna: Zhuravlev countergambit 1.e4 e5, 2.Nc3 Bb4, 3.Qg4 Nf6 C25 Vienna game, Max Lange defence 1.e4 e5, 2.Nc3 Nc6 C25 Vienna: Paulsen variation 1.e4 e5, 2.Nc3 Nc6, 3.g3 C25 Vienna: Fyfe gambit 1.e4 e5, 2.Nc3 Nc6, 3.d4 C25 Vienna gambit 1.e4 e5, 2.Nc3 Nc6, 3.f4 C25 Vienna: Steinitz gambit 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.d4 C25 Vienna: Steinitz gambit, Zukertort def 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.d4 Qh4+, 5.Ke2 d5 C25 Vienna: Stein. gam Fraser-Minckwitz var. 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.d4 Qh4+, 5.Ke2 b6 C25 Vienna gambit 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.Nf3 C25 Vienna: Hamppe-Allgaier gambit 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.Nf3 g5, 5.h4 g4, 6.Ng5 C25 Vienna: Hamppe-Allgaier gambit, Alapin var. 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.Nf3 g5, 5.h4 g4, 6.Ng5 d6 C25 Vienna: Hamppe-Muzio gambit 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.Nf3 g5, 5.Bc4 g4, 6.0-0 C25 Vienna: Hamppe-Muzio, Dubois var 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.Nf3 g5, 5.Bc4 g4, 6.0-0 gxf3, 7.Qxf3 Ne5, 8.Qxf4 Qf6 C25 Vienna: Pierce gambit 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.Nf3 g5, 5.d4 C25 Vienna: Pierce gambit, Rushmere attack 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.Nf3 g5, 5.d4 g4, 6.Bc4 gxf3, 7.0-0 d5, 8.exd5, 9.Bg4 dxc6 ------------------------------------ C26 --------------------- C26 Vienna: Falkbeer variation 1.e4 e5, 2.Nc3 Nf6 C26 Vienna: Mengarini variation 1.e4 e5, 2.Nc3 Nf6, 3.a3 C26 Vienna: Paulsen-Mieses variation 1.e4 e5, 2.Nc3 Nf6, 3.g3 C26 Vienna game 1.e4 e5, 2.Nc3 Nf6, 3.Bc4 ------------------------------------ C27 --------------------- C27 Vienna game 1.e4 e5, 2.Nc3 Nf6, 3.Bc4 Ne4 C27 Vienna: `Frankenstein-Dracula' variation 1.e4 e5, 2.Nc3 Nf6, 3.Bc4 Nxe4, 4.Qh5 Nd6, 5. Bb3 Nc6, 6.Nb5 g6, 7.Qf3 f5, 8.Qd5 Qe7, 9.Nxc7 Kd8, C27 Vienna: Adams' gambit 1.e4 e5, 2.Nc3 Nf6, 3.Bc4 Nxe4, 4.Qh5 Nd6, 5.Bb3 Nc6, 6.d4 C27 Vienna game 1.e4 e5, 2.Nc3 Nf6, 3.Bc4 Nxe4, 4.Qh5 Nd6, 5.Bb3 Be7 C27 Vienna: Alekhine variation 1.e4 e5, 2.Nc3 Nf6, 3.Bc4 Nxe4, 4.Qh5 Nd6, 5.Bb3 Be7, 6.Nf3 Nc6, 7.Ne5 C27 Boden-Kieseritsky gambit 1.e4 e5, 2.Nc3 Nf6, 3.Bc4 Nxe4 Nf3 C27 Boden-Kieseritsky gambit: Lichtenhein def 1.e4 e5, 2.Nc3 Nf6, 3.Bc4 Nxe4, 4.Nf3 d5 ------------------------------------ C28 --------------------- C28 Vienna game 1.e4 e5, 2.Nc3 Nf6, 3.Bc4 Nc6 ------------------------------------ C29 --------------------- C29 Vienna gambit 1.e4 e5, 2.Nc3 Nf6, 3.f4 d5 C29 Vienna gambit: Kaufmann variation 1.e4 e5, 2.Nc3 Nf6, 3.f4 d5, 4.fxe5 Nxe4, 5.Nf3 Bg4, 6.Qe2 C29 Vienna gambit: Breyer variation 1.e4 e5, 2.Nc3 Nf6, 3.f4 d5, 4.fxe5 Nxe4, 5.Nf3 Be7 C29 Vienna gambit: Paulsen attack 1.e4 e5, 2.Nc3 Nf6, 3.f4 d5, 4.fxe5 Nxe4, 5. Qf3 C29 Vienna gambit: Bardeleben variation 1.e4 e5, 2.Nc3 Nf6, 3.f4 d5, 4.fxe5 Nxe4, 5.Qf3 f5 C29 Vienna gambit: Heyde variation 1.e4 e5, 2.Nc3 Nf6, 3.f4 d5, 4.fxe5 Nxe4, 5.Qf3 f5, 6.d4 C29 Vienna gambit 1.e4 e5, 2.Nc3 Nf6, 3.f4 d5, 4.fxe5 Nxe4, 5.d3 C29 Vienna gambit, Wurzburger trap 1.e4 e5, 2.Nc3 Nf6, 3.f4 d5, 4.fxe5 Nxe4, 5.d3 Qh4+, 6.g3 Nxg3, 7.Nf3 Qh5, 8.Nxd5 C29 Vienna gambit, Steinitz variation 1.e4 e5, 2.Nc3 Nf6, 3.f4 d5, 5.d3 ------------------------------------ C30 --------------------- C30 - C39 King's gambit 1.e4 e5, 2.f4 C30 KGD: Keene's defence 1.e4 e5, 2.f4 Qh4, 3.g3 Qe7 C30 KGD: Mafia defence 1.e4 e5, 2.f4 c5 C30 KGD: Norwalde variation 1.e4 e5, 2.f4 Qf6 C30 KGD: Norwalde variation, Buecker gambit 1.e4 e5, 2.f4 Qf6, 3.Nf3 Qxf4, 4.Nc3 Bb4, 5.Bc4 C30 KGD: classical variation 1.e4 e5, 2.f4 Bc5 C30 KGD: classical, Svenonius variation 1.e4 e5, 2.f4 Bc5, 3.Nf3 d6, 4.Nc3 Nf6, 5.Bc4 Nc6, 6.d3 Bg4, 7.h3 Bxf3, 8.Qxf3 exf4 C30 KGD: classical, Hanham variation 1.e4 e5, 2.f4 Bc5, 3.Nf3 d6, 4.Nc3 Nd7 C30 KGD: classical, 4.c3 1.e4 e5, 2.f4 Bc5, 3.Nf3 d6, 4.c3 C30 KGD: classical, Marshall attack 1.e4 e5, 2.f4 Bc5, 3.Nf3 d6, 4.c3 Bg4, 5.fxe5 dxe5, 6.Qa4+ C30 KGD: classical counter-gambit 1.e4 e5, 2.f4 Bc5, 3.Nf3 d6, 4.c3 f5 C30 KGD: classical, Reti variation 1.e4 e5, 2.f4 Bc5, 3.Nf3 d6, 4.c3 f5, 5.fxe5 dxe5, 6.d4 exd4, 7.Bc4 C30 KGD: classical, Soldatenkov variation 1.e4 e5, 2.f4 Bc5, 3.Nf3 d6, 4.fxe5 C30 KGD: classical, Heath variation 1.e4 e5, 2.f4 Bc5, 3.Nf3 d6, 4.b4 C30 KGD: 2...Nf6 1.e4 e5, 2.f4 Nf6 ------------------------------------ C31 --------------------- C31 KGD: Falkbeer counter-gambit 1.e4 e5, 2.f4 d5 C31 KGD: Falkbeer, Tartakower variation 1.e4 e5, 2.f4 d5, 3.Nf3 C31 KGD: Falkbeer, Milner-Barry variation 1.e4 e5, 2.f4 d5, 3.Nc3 C31 KGD: Falkbeer counter-gambit 1.e4 e5, 2.f4 d5, 3.exd5 C31 KGD: Nimzovich counter-gambit 1.e4 e5, 2.f4 d5, 3.exd5 c6 C31 KGD: Falkbeer, 3...e4 1.e4 e5, 2.f4 d5, 3.exd5 e4 C31 KGD: Falkbeer, Rubinstein variation 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.Nc3 Nf6, 5.Qe2 C31 KGD: Falkbeer, Nimzovich variation 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.Bb5 C31 KGD: Falkbeer, 4.d3 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.d3 C31 KGD: Falkbeer, Morphy gambit 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.d3 Nf6, 5.Nc3 Bb4, 6.Bd2 e3 ------------------------------------ C32 ------------------- C32 KGD: Falkbeer, 5.dxe4 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.d3 Nf6, 5.dxe4 C32 KGD: Falkbeer, Alapin variation 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.d3 Nf6, 5.dxe4 Nxe4, 6.Nf3 Bc5, 7.Qe2 Bf2+, 8.Kd1 Qxd5+, 9.Nfd2 C32 KGD: Falkbeer, main line, 7...Bf5 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.d3 Nf6, 5.dxe4 Nxe4, 6.Nf3 Bc5, 7.Qe2 Bf5 C32 KGD: Falkbeer, Tarrasch variation 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.d3 Nf6, 5.dxe4 Ne4, 6.Nf3 Bc5, 7.Qe2 Bf5, 8.g4 0-0 C32 KGD: Falkbeer, Charousek gambit 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.d3 Nf6, 5.dxe4 Nxe4, 6.Qe2 C32 KGD: Falkbeer, Charousek variation 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.d3 Nf6, 5.dxe4 Nxe4, 6.Qe2 Qxd5, 7.Nd2 f5, 8.g4 C32 KGD: Falkbeer, Keres variation 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.d3 Nf6, 5.Nd2 C32 KGD: Falkbeer, Reti variation 1.e4 e5, 2.f4 d5, 3.exd5 e4, 4.d3 Nf6, 5.Qe2 ------------------------------------ C33 ---------------------- C33 King's gambit accepted 1.e4 e5, 2.f4 exf4 C33 KGA: Tumbleweed gambit 1.e4 e5, 2.f4 exf4, 3.Kf2 C33 KGA: Orsini gambit 1.e4 e5, 2.f4 exf4, 3.b3 C33 KGA: Pawn's gambit (Stamma gambit) 1.e4 e5, 2.f4 exf4, 3.h4 C33 KGA: Schurig gambit 1.e4 e5, 2.f4 exf4, 3.Bd3 C33 KGA: Carrera (Basman) gambit 1.e4 e5, 2.f4 exf4, 3.Qe2 C33 KGA: Villemson (Steinitz) gambit 1.e4 e5, 2.f4 exf4, 3.d4 C33 KGA: Keres (Mason-Steinitz) gambit 1.e4 e5, 2.f4 exf4, 3.Nc3 C33 KGA: Breyer gambit 1.e4 e5, 2.f4 exf4, 3.Qf3 C33 KGA: Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit 1.e4 e5, 2.f4 exf4, 3.Be2 C33 KGA: bishop's gambit 1.e4 e5, 2.f4 exf4, 3.Bc4 C33 KGA: bishop's gambit, Chigorin's attack 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 d5, 5.Bxd5, 6.g5 g3 C33 KGA: bishop's gambit, Greco variation 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 Bc5 C33 KGA: bishop's gambit, classical defence 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 g5 C33 KGA: bishop's gambit, Grimm attack 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 g5, 5.Nc3 Bg7, 6.d4 d6, 7.e5 C33 KGA: bishop's gambit, classical defence 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 g5, 5.Nc3 Bg7, 6.d4 Ne7 C33 KGA: bishop's gambit, McDonnell attack 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 g5, 5.Nc3 Bg7, 6.d4 N7, 7.g3 C33 KGA: bishop's gambit, McDonnell attack 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 g5, 5.Nc3 Bg7, 6.g3 C33 KGA: bishop's gambit, Fraser variation 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 g5, 5.Nc3 Bg7, 6.g3 fxg3, 7.Qf3 C33 KGA: bishop's gambit, classic defence, Cozio attack 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 g5, 5.Qf3 C33 KGA: bishop's gambit, Boden defence 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 Nc6 C33 KGA: bishop's gambit, Bryan counter-gambit 1.e4 e5, 2.f4 exf4, 3.Bc4 Qh4+, 4.Kf1 b5 C33 KGA: bishop's gambit, Bryan counter-gambit 1.e4 e5, 2.f4 exf4, 3.Bc4 b5 C33 KGA: bishop's gambit, Steinitz defence 1.e4 e5, 2.f4 exf4, 3.Bc4 Be7 C33 KGA: bishop's gambit, Maurian defence 1.e4 e5, 2.f4 exf4, 3.Bc4 Nc6 C33 KGA: bishop's gambit, Ruy Lopez defence 1.e4 e5, 2.f4 exf4, 3.Bc4 c6 C33 KGA: bishop's gamb, Lopez-Gianutio c-gamb 1.e4 e5, 2.f4 exf4 Bc4 f5 C33 KGA: Lopez-Gianutio c-gamb, Hein var. 1.e4 e5, 2.f4 exf4, 3.Bc4 f5, 4.Qe2 Qh4+, 5.Kd1 fxe4, 6.Nc3 Kd8 C33 KGA: bishop's gambit, Bledow variation 1.e4 e5, 2.f4 exf4, 3.Bc4 d5 C33 KGA: bishop's gambit, Gifford variation 1.e4 e5, 2.f4 exf4, 3.Bc4 d5, 4.Bxd5, 5.Qh4+, 6.Kf1 g5, 7.g3 C33 KGA: bishop's gambit, Boren-Svenonius variation 1.e4 e5, 2.f4 exf4, 3.Bc4 d5, 4.Bxd5 Qh4+, 5.Kf1 Bd6 C33 KGA: bishop's gambit, Anderssen variation 1.e4 e5, 2.f4 exf4, 3.Bc4 d5, 4.Bxd5 c6 C33 KGA: bishop's gambit, Morphy variation 1.e4 e5, 2.f4 exf4, 3.Bc4 d5, 4.Bxd5 Nf6 C33 KGA: bishop's gambit, Cozio (Morphy) def 1.e4 e5, 2.f4 exf4, 3.Bc4 Nf6 C33 KGA: bishop's gambit, Bogolyubov var 1.e4 e5, 2.f4 exf4, 3.Bc4 Nf6, 4.Nc3 C33 KGA: bishop's gambit, Paulsen attack 1.e4 e5, 2.f4 exf4, 3.Bc4 Nf6, 4.Nc3 Bb4, 5.e5 C33 KGA: bishop's gambit, Jaenisch variation 1.e4 e5, 2.f4 exf4, 3.Bc4 Nf6, 4.Nc3 c6 ------------------------------------ C34 --------------------- C34 King's knight's gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 C34 KGA: Bonsch-Osmolovsky variation 1.e4 e5, 2.f4 exf4, 3.Nf3 Ne7 C34 KGA: Gianutio counter-gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 f5 C34 KGA: Fischer defence 1.e4 e5, 2.f4 exf4, 3.Nf3 d6 C34 KGA: Becker defence 1.e4 e5, 2.f4 exf4, 3.Nf3 h6 C34 KGA: Schallop defence 1.e4 e5, 2.f4 exf4, 3.Nf3 Nf6 ------------------------------------ C35 ---------------------- C35 KGA: Cunningham defence 1.e4 e5, 2.f4 exf4 3.Nf3 Be7 C35 KGA: Cunningham, Bertin gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 Be7, 4.Bc4 Bh4+g3 C35 KGA: Cunningham, three pawns gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 Be7, 4.Bc4 Bh4+, 5.g3 fxg3, 6.0-0 gxh2, 7.Kh1 C35 KGA: Cunningham, Euwe defence 1.e4 e5, 2.f4 exf4, 3.Nf3 Be7, 4.Bc4 Nf6 ------------------------------------ C36 ---------------------- C36 KGA: Abbazia defence (classical def., mod. def.) 1.e4 e5, 2.f4 exf4, 3.Nf3 d5 C36 KGA: Abbazia defence, modern variation 1.e4 e5, 2.f4 exf4, 3.Nf3 d5, 4.exd5 Nf6 C36 KGA: Abbazia defence, Botvinnik variation 1.e4 e5, 2.f4 exf4, 3.Nf3 d5, 4.exd5 Nf6, 5.Bb5+c6, 6.dxc6 bxc6, 7.Bc4 Nd5 ------------------------------------ C37 ---------------------- C37 KGA: Quaade gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Nc3 C37 KGA: Rosentreter gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.d4 C37 KGA: Soerensen gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.d4 g4, 5.Ne5 C37 KGA: King's knight's gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 C37 KGA: Blachly gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 Nc6 C37 KGA: Lolli gambit (wild Muzio gambit) 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.Bxf7+ C37 KGA: Lolli gambit, Young variation 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.Bxf7+ Kxf7, 6.0-0 gxf3, 7.Qxf3 Qf6, 8.d4 Qxd4, 9.Be3 Qf6, 10.Nc3 C37 KGA: Ghulam Kassim gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.d4 C37 KGA: MacDonnell gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.Nc3 C37 KGA: Salvio gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.Ne5 C37 KGA: Silberschmidt gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.Ne5 Qh4+, 6.Kf1 Nh6, 7.d4 f3 C37 KGA: Salvio gam, Anderssen counter-att 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.Ne5 Qh4+, 6.Kf1 Nh6, 7.d4 d6 C37 KGA: Cochrane gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.Ne5 Qh4+, 6.Kf1 f3 C37 KGA: Herzfeld gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.Ne5 Qh4+, 6.Kf1 Nc6 C37 KGA: Muzio gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.0-0 C37 KGA: Muzio gambit, Paulsen variation 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.0-0 gxf3, 6.Qxf3 Qf6, 7.e5 Qxe5, 8.d3 Bh6, 9.Nc3 Ne7, 10.Bd2 Nc6, 11.Rae1 C37 KGA: double Muzio gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.0-0 gxf3, 6.Qxf3 Qf6, 7.e5 Qxe5, 8.Bxf7+ C37 KGA: Muzio gambit, From defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.0-0 gxf3, 6.Qxf3 Qe7 C37 KGA: Muzio gambit, Holloway defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.0-0 gxf3, 6.Qxf3 Nc6 C37 KGA: Muzio gambit, Kling and Horwitz counter-attack 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.0-0 Qe7 C37 KGA: Muzio gambit, Brentano defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 g4, 5.0-0 d5 ------------------------------------ C38 ---------------------- C38 King's knight's gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 Bg7 C38 KGA: Hanstein gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 Bg7, 5.0-0 C38 KGA: Philidor gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 Bg7, 5.h4 C38 KGA: Greco gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 Bg7, 5.h4 h6, 6.d4 d6, 7.Nc3 c6, 8.hxg5 hxg5, 9.Rxh8 Bxh8, 10.Ne5 C38 KGA: Philidor gambit, Schultz variation 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.Bc4 Bg7, 5.h4 h6, 6.d4 d6, 7.Qd3 ------------------------------------ C39 ---------------------- C39 King's knight's gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 C39 KGA: Allgaier gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ng5 C39 KGA: Allgaier, Horny defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ng5 h6, 6.Nxf7 Kxf7, 7.Qxg4 Nf6, 8.Qxf4 Bd6 C39 KGA: Allgaier, Thorold variation 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ng5 h6, 6.Nxf7 Kxf7, 7.d4 C39 KGA: Allgaier, Cook variation 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ng5 h6, 6.Nxf7 Kxf7, 7.d4 d5, 8.Bf4 dxe4, 9.Bc4 Kg7,10.fxe5 C39 KGA: Allgaier, Blackburne gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ng5 h6, 6.Nxf7 Kxf7, 7.Nc3 C39 KGA: Allgaier, Walker attack 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ng5 h6, 6.Nxf7 Kxf7, 7.Bc4+ C39 KGA: Allgaier, Urusov attack 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ng5 h6, 6.Nxf7 Kxf7, 7.Bc4+ d5. 8.Bxd5 Kg7, 9.d4 C39 KGA: Allgaier, Schlechter defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ng5 Nf6 C39 KGA: Kieseritsky, Paulsen defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 Bg7 C39 KGA: Kieseritsky, long whip (Stockwhip, classic) def. 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 h5 C39 KGA: Kieseritsky, long whip defence, Jaenisch var. 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 h5, 6.Bc4 Rh7, 7.d4 Bh6, 8.Nc3 C39 KGA: Kieseritsky, Brentano (Campbell) def 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 d5 C39 KGA: Kieseritsky, Brentano defence, Kaplanek var. 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 d5 6.d4 Nf6, 7.exd5 Qxd5, 8.Nc3 Bb4 Kf2 C39 KGA: Kieseritsky, Brentano defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 d5, 6.d4 Nf6, 7.Bf4 C39 KGA: Kieseritsky, Brentano defence, Caro variation 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 d5 6.d4 Nf6, 7.Bxf4 Nxe4, 8.Nd2 C39 KGA: Kieseritsky, Salvio (Rosenthal) defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 Qe7 C39 KGA: Kieseritsky, Salvio def, Cozio var 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 Qe7, 6.d4 f5, 7.Bc4 C39 KGA: Kieseritsky, Polerio defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 Be7 C39 KGA: Kieseritsky, Neumann defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 Nc6 C39 KGA: Kieseritsky, Kolisch defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 d6 C39 KGA: Kieseritsky, Berlin defence 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 Nf6 C39 KGA: Kieseritsky, Berlin def, Riviere var 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 Nf6 6.Nxg4 d5 C39 KGA: Kieseritsky, Berlin defence, 6.Bc4 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 Nf6, 6.Bc4 C39 KGA: Kieseritsky, Rice gambit 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ne5 Nf6, 6.Bc4 d5, 7.exd5 Bd6, 8.0-0 ------------------------------------ C40 --------------------- C40 King's knight opening 1.e4 e5, 2.Nf3 C40 Gunderam defence 1.e4 e5, 2.Nf3 Qe7 C40 Greco defence 1.e4 e5, 2.Nf3 Qf6 C40 Damiano's defence 1.e4 e5, 2.Nf3 f6 C40 QP counter-gambit (elephant gambit) 1.e4 e5, 2.Nf3 d5 C40 QP counter-gambit: Maroczy gambit 1.e4 e5, 2.Nf3 d5, 3.exd5 Bd6 C40 Latvian counter-gambit 1.e4 e5, 2.Nf3 f5 C40 Latvian: Nimzovich variation 1.e4 e5, 2.Nf3 f5, 3.Nxe5 Qf6, 4.d4 d6, 5.Nc4 fxe4, 6.Ne3 C40 Latvian: Fraser defence 1.e4 e5, 2.Nf3 f5, 3.Ne5 Nc6 C40 Latvian gambit, 3.Bc4 1.e4 e5, 2.Nf3 f5, 3.Bc4 C40 Latvian: Behting variation 1.e4 e5, 2.Nf3 f5, 3.Bc4 fxe4, 4.Nxe5 Qg5, 5.Nf7 Qxg2, 6.Rf1 d5, 7.Nxh8 Nf6 C40 Latvian: Polerio variation 1.e4 e5, 2.Nf3 f5, 3.Bc4 fxe4, 4.Ne5 d5 C40 Latvian: corkscrew counter-gambit 1.e4 e5, 2.Nf3 f5, 3.Bc4 fxe4, 4.Ne5 Nf6 ------------------------------------ C41 --------------------- C41 Philidor's defence 1.e4 e5, 2.Nf3 d6 C41 Philidor: Steinitz variation 1.e4 e5, 2.Nf3 d6, 3.Bc4 Be7, 4.c3 C41 Philidor: Lopez counter-gambit 1.e4 e5, 2.Nf3 d6, 3.Bc4 f5 C41 Philidor: Lopez counter-gamb, Jaenisch var 1.e4 e5, 2.Nf3 d6, 3.Bc4 f5, 4.d4 exd4, 5.Ng5, 6.Nh6 Nxh7 C41 Philidor's defence 1.e4 e5, 2.Nf3 d6, 3.d4 C41 Philidor: Philidor counter-gambit 1.e4 e5, 2.Nf3 d6, 3.d4 f5 C41 Philidor: Philidor counter-gamb, del Rio att. 1.e4 e5, 2.Nf3 d6, 3.d4 f5, 4.dxe5 fxe4, 5.Ng5 d5, 6.e6 C41 Philidor: Philidor count-gamb, Berger var 1.e4 e5, 2.Nf3 d6, 3.d4 f5, 4.dxe5 fxe4, 5.Ng5 d5, 6.e6 Bc5, 7.Nc3 C41 Philidor: Philid count-gamb, Zukertort var 1.e4 e5, 2.Nf3 d6, 3.d4 f5, 4.Nc3 C41 Philidor: exchange variation 1.e4 e5, 2.Nf3 d6, 3.d4 exd4 C41 Philidor: Boden variation 1.e4 e5, 2.Nf3 d6, 3.d4 exd4, 4.d4 Bd7 C41 Philidor: exchange variation 1.e4 e5, 2.Nf3 d6, 3.d4 exd4, 4.Nxd4 C41 Philidor: Paulsen attack 1.e4 e5, 2.Nf3 d6, 3.d4 exd4, 4.Nxd4 d5, 5.exd5 C41 Philidor: exchange variation 1.e4 e5, 2.Nf3 d6, 3.d4 exd4, 4.Nxd4 Nf6 C41 Philidor: Berger variation 1.e4 e5, 2.Nf3 d6, 3.d4 exd4, 4.Nxd4 Nf6, 5.Nc3 Be7, 6.Be2 0-0, 7.0-0 c5, 8.Nf3 Nc6, 9.Bg5 Be6, 10.Re1 C41 Philidor: Larsen variation 1.e4 e5, 2.Nf3 d6, 3.d4 exd4, 4.Nxd4 g6 C41 Philidor: Nimzovich (Jaenisch) variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nf6 C41 Philidor: Improved Hanham variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nf6, 4.Nc3 Nbd7 C41 Philidor: Nimzovich, Sozin variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nf6, 4.Nc3 Nbd7, 5.Bc4 Be7, 6.0-0 0-0, 7.Qe2 c6, 8.a4 exd4 C41 Philidor: Nimzovich, Larobok variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nf6, 4.Nc3 Nbd7, 5.Bc4 Be7, 6.Ng5 0-0, 7.Bxf7+ C41 Philidor: Nimzovich variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nf6, 4.dxe5 C41 Philidor: Nimzovich, Sokolsky variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nf6, 4.dxe5 Nxe4, 5.Nbd2 C41 Philidor: Nimzovich, Rellstab variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nf6, 4.dxe5, 5.Nxe4 Qd5 C41 Philidor: Nimzovich, Locock variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nf6, 4.Ng5 C41 Philidor: Nimzovich, Klein variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nf6, 4.Bc4 C41 Philidor: Hanham variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nbd7 C41 Philidor: Hanham, Krause variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nbd7, 4.Bc4 c6, 5.0-0 C41 Philidor: Hanham, Steiner variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nbd7, 4.Bc4 c6, 5.0-0 Be7, 6.dxe5 C41 Philidor: Hanham, Kmoch variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nbd7, 4.Bc4 c6, 5.Ng5 C41 Philidor: Hanham, Berger variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nbd7, 4.Bc4 c6, 5.Ng5 Nh6, 6.f4 Be7, 7.0-0 0-0, 8.c3 d5 C41 Philidor: Hanham, Schlechter variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nbd7, 4.Bc4 c6, 5.Nc3 C41 Philidor: Hanham, Delmar variation 1.e4 e5, 2.Nf3 d6, 3.d4 Nbd7, 4.Bc4 c6, 5.c3 ------------------------------------ C42 --------------------- C42 - C43 Petrov's defence 1.e4 e5, 2.Nf3 Nf6 C42 Petrov: French attack 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d3 C42 Petrov: Kaufmann attack 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.c4 C42 Petrov: Nimzovich attack 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.Nc3 C42 Petrov: Cozio (Lasker) attack 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.Qe2 C42 Petrov: classical attack 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 C42 Petrov: classical attack, Chigorin variation 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 d5, 6.Bd3 Be7, 7.0-0 Nc6, 8.Re1 C42 Petrov: classical attack, Berger variation 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 d5, 6.Bd3 Be7, 7.0-0 Nc6, 8.Re1 Bg4, 9.c3 f5, 10.Nbd2 C42 Petrov: classical attack, Krause variation 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 d5, 6.Bd3 Be7, 7.0-0 Nc6, 8.Re1 Bg4, 9.c3 f5, 10.c4 C42 Petrov: classical attack, Maroczy var 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 d5, 6.Bd3 Be7, 7.0-0 Nc6, 8.Re1 Bg4, 9.c3 f5, 10.c4 Bh4 C42 Petrov: classical attack, Jaenisch variation 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 d5, 6.Bd3 Be7, 7.0-0 Nc6, 8.c4 C42 Petrov: classical attack, Mason variation 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 d5, 6.Bd3 Be7, 7.0-0 0-0 C42 Petrov: classical attack, Marshall variation 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 d5, 6.Bd3 Bd6 C42 Petrov: classical attack, Tarrasch variation 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 d5, 6.Bd3 Bd6, 7.0-0 0-0, 8.c4 Bg4 C42 Petrov: classical attack, Marshall trap 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 d5, 6.Bd3 Bd6, 7.0-0 0-0, 8.c4 Bg4, 9.cxd5 f5, 10.Re1 Bh2 C42 Petrov: classical attack, close variation 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4 Nf6 C42 Petrov: Cochrane gambit 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nxf7 C42 Petrov: Paulsen attack 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nc4 C42 Petrov: Damiano variation 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 Nxe4 C42 Petrov three knights game 1.e4 e5, 2.Nf3 Nf6, 3.Nc3 C42 Petrov: Italian variation 1.e4 e5, 2.Nf3 Nf6, 3.Bc4 ------------------------------------ C43 --------------------- C43 Petrov: modern (Steinitz) attack 1.e4 e5, 2.Nf3 Nf6, 3.d4 C43 Petrov: modern attack, main line 1.e4 e5, 2.Nf3 Nf6, 3.d4 exd4, 4.e5 Ne4, 5.Qxd4 C43 Petrov: modern attack, Steinitz variation 1.e4 e5, 2.Nf3 Nf6, 3.d4 exd4, 4.e5 Ne4, 5.Qe2 C43 Petrov: modern attack, Bardeleben variation 1.e4 e5, 2.Nf3 Nf6, 3.d4 exd4, 4.e5 Ne4, 5.Qe2 Nc5, 6.Nxd4 Nc6 C43 Petrov: Urusov gambit 1.e4 e5, 2.Nf3 Nf6, 3.d4 exd44.Bc4 C43 Petrov: modern attack, Symmetrical variation 1.e4 e5, 2.Nf3 Nf6, 3.d4 Nxe4 C43 Petrov: modern attack, Trifunovic variation 1.e4 e5, 2.Nf3 Nf6, 3.d4 Nxe4, 4.Bd3 d5, 5.Nxe5 Bd6, 6.0-0 0-0, 7.c4 dxe5 ------------------------------------ C44 --------------------- C44 King's pawn game 1.e4 e5, 2.Nf3 Nc6 C44 Irish (Chicago) gambit 1.e4 e5, 2.Nf3 Nc6, 3.Ne5 Nxe5, 4.d4 C44 Konstantinopolsky opening 1.e4 e5, 2.Nf3 Nc6 g3 C44 Dresden opening 1.e4 e5, 2.Nf3 Nc6, 3.c4 C44 Inverted Hungarian 1.e4 e5, 2.Nf3 Nc6 Be2 C44 Inverted Hanham 1.e4 e5, 2.Nf3 Nc6, 3.Be2 Nf6, 4.d3 d5, 5.Nbd2 C44 Tayler opening 1.e4 e5, 2.Nf3 Nc6, 3.Be2 Nf6, 4.d4 C44 Ponziani opening 1.e4 e5, 2.Nf3 Nc6, 3.c3 C44 Ponziani: Caro variation 1.e4 e5, 2.Nf3 Nc6, 3.c3 d5, 4.Qa4 Bd7 C44 Ponziani: Leonhardt variation 1.e4 e5, 2.Nf3 Nc6, 3.c3 d5, 4.Qa4 Nf6 C44 Ponziani: Steinitz variation 1.e4 e5, 2.Nf3 Nc6, 3.c3 d5, 4.Qa4 f6 C44 Ponziani: Jaenisch counter-attack 1.e4 e5, 2.Nf3 Nc6, 3.c3 Nf6 C44 Ponziani: Fraser defence 1.e4 e5, 2.Nf3 Nc6, 3.c3 Nf6, 4.d4 Nxe4, 5.d5 Bc5 C44 Ponziani: Reti variation 1.e4 e5, 2.Nf3 Nc6, 3.c3 Nge7 C44 Ponziani: Romanishin variation 1.e4 e5, 2.Nf3 Nc6, 3.c3 Be7 C44 Ponziani counter-gambit 1.e4 e5, 2.Nf3 Nc6, 3.c3 f5 C44 Ponziani counter-gambit, Schmidt attack 1.e4 e5, 2.Nf3 Nc6, 3.c3 f5, 4.d4 d6, 5.d5 C44 Ponziani counter-gambit, Cordel variation 1.e4 e5, 2.Nf3 Nc6, 3.c3 f5, 4.d4 d6, 5.d5 fxe4, 6.Ng5 Nb8, 7. Nxe4 Nf6, 8.Bd3 Be7 C44 Scotch opening 1.e4 e5, 2.Nf3 Nc6, 3.d4 C44 Scotch: Lolli variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 Nxd4 C44 Scotch: Cochrane variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 Nxd4, 4.Nxe5 Ne6, 5.Bc4 c6, 6.0-0 Nf6, 7.Nxf7 C44 Scotch: Relfsson gambit ('MacLopez') 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bb5 C44 Scotch: Goering gambit 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.c3 C44 Scotch: Sea-cadet mate 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.c3 dxc3, 5.Nxc3 d6, 6.Bc4 Bg4, 7.0-0 Ne5, 8.Nxe5 Bxd1, 9. Bxf7+ Ke7 Nd5# C44 Scotch: Goering gambit 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.c3 dxc3, 5.Nxc3 Bb4 C44 Scotch: Goering gambit, Bardeleben var 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.c3 dxc3, 5.Nxc3 Bb4, 6.Bc4 Nf6 C44 Scotch gambit 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bc4 C44 Scotch gambit: Anderssen (Paulsen, Suhle) c.-attack 1.e4 e5, Nf3 Nc6, 3.d4 exd4, 4.Bc4 Bc5, 5.0-0 d6, 6.c3 Bg4 C44 Scotch gambit 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bc4 Bc5, 5.Ng5 C44 Scotch gambit: Cochrane-Shumov def 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bc4 Bc5, 5.Ng5 Nh6, 6.Nxf7 Nxf7, 7.Bxf7+ Kxf7, 8.Qh5+ g6, 9.Qxc5 d5 C44 Scotch gambit: Vitzhum attack 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bc4 Bc5, 5.Ng5 Nh6, 6.Qh5 C44 Scotch gambit 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bc4 Bb4+ C44 Scotch gambit: Hanneken variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bc4 Bb4+, 5.c3 dxc3, 6.0-0 cxb2, 7.Bxb2 Nf6, 8.Ng5 0-0, 9.e5 Nxe5 C44 Scotch gambit 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bc4 Bb4, 5.c3 dxc3, 6.bxc3 C44 Scotch gambit: Cochrane variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bc4 Bb4, 5.c3 dxc3, 6.bxc3 Ba5, 7.e5 C44 Scotch gambit: Benima defence 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bc4 Be7 C44 Scotch gambit: Dubois-Reti defence 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Bc4 Nf6 ------------------------------------ C45 --------------------- C45 Scotch game 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 C45 Scotch: Ghulam Kassim variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Nxd4, 5.Qxd4 d6, 6.Bd3 C45 Scotch: Pulling counter-attack 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Qh4 C45 Scotch: Horwitz attack 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Qh4, 5.Nb5 C45 Scotch: Berger variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Qh4, 5.Nb5 Bb4+, 6.Nd2 Qxe4, 7.Be2 Qxg2, 8.Bf3 Qh3, 9.Nxc7+ Kd8, 10.Nxa8 Nf6, 11.a3 C45 Scotch game 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Qh4, 5.Nb5 Bb4+, 6.Bd2 C45 Scotch: Rosenthal variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Qh4, 5.Nb5 Bb4+, 6.Bd2 Qxe4+, 7.Be2 Kd8, 8.0-0 Bxd2,9. Nxd2 Qg6 C45 Scotch: Fraser attack 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Qh4, 5.Nf3 C45 Scotch: Steinitz variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Qh4, 5.Nc3 C45 Scotch: Schmidt variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Nf6 C45 Scotch: Mieses variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Nf6, 5.Nxc6 bxc6, 6.e5 C45 Scotch: Tartakower variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Nf6, 5.Nxc6 bxc6, 6.Nd2 C45 Scotch game 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Bc5 C45 Scotch: Blackburne attack 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Bc5, 5.Be3 Qf6, 6.c3 Nge7, 7.Qd2 C45 Scotch: Gottschall variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Bc5, 5.Be3 Qf6, 6.c3 Nge7, 7.Qd2 d5, 8.Nb5 Bxe3,9.Qxe3 0-0, 10.Nxc7 Rb8, 11.Nxd5 Nxd5, 12.exd5 Nb4 C45 Scotch: Paulsen attack 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Bc5, 5.Be3 Qf6, 6.c3 Nge7, 7.Bb5 C45 Scotch: Paulsen, Gunsberg defence 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Bc5, 5.Be3 Qf6, 6.c3 Nge7, 7.Bb5 Nd8 C45 Scotch: Meitner variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 ed4, 4.Nxd4 Bc5, 5.Be3 Qf6, 6.c3 Nge7, 7.Nc2 C45 Scotch: Blumenfeld attack 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Bc5, 5.Be3 Qf6, 6.Nb5 C45 Scotch: Potter variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Bc5, 5.Nb3 C45 Scotch: Romanishin variation 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Bc5, 5.Nb3 Bb4+ ------------------------------------ C46 ---------------------- C46 Three knights game 1.e4 e5, 2.Nf3 Nc6, 3.Nc3 C46 Three knights: Schlechter variation 1.e4 e5, 2.Nf3 Nc6, 3.Nc3 Bb4, 4.Nd5 Nf6 C46 Three knights: Winawer defence (Gothic def) 1.e4 e5, 2.Nf3 Nc6, 3.Nc3 f5 C46 Three knights: Steinitz variation 1.e4 e5, 2.Nf3 Nc6, 3.Nc3 g6 C46 Three knights: Steinitz, Rosenthal variation 1.e4 e5, 2.Nf3 Nc6, 3.Nc3 g6, 4.d4 exd4, 5.Nd5 C46 Four knights game 1.e4 e5, 2.Nf3 Nc6, 3.Nc3 Nf6 C46