1. b4|A00|Polish (Sokolsky) opening 1. b4 Nh6|A00|Polish: Tuebingen variation 1. b4 c6|A00|Polish: Outflank variation 1. g3|A00|Benko's opening 1. g3 h5|A00|Lasker simul special 1. g3 e5 2. Nf3|A00|Benko's opening: reversed Alekhine 1. g4|A00|Grob's attack 1. g4 d5 2. Bg2 c6 3. g5|A00|Grob: spike attack 1. g4 d5 2. Bg2 Bxg4 3. c4|A00|Grob: Fritz gambit 1. g4 d5 2. Bg2 Bxg4 3. c4 d4|A00|Grob: Romford counter-gambit 1. h3|A00|Clemenz (Mead's, Basman's or de Klerk's) opening 1. h3 e5 2. a3|A00|Global opening 1. Nh3|A00|Amar (Paris) opening 1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4|A00|Amar gambit 1. Nc3|A00|Dunst (Sleipner, Heinrichsen) opening 1. Nc3 e5|A00|Dunst (Sleipner,Heinrichsen) opening 1. Nc3 e5 2. a3|A00|Battambang opening 1. Nc3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qh4|A00|Novosibirsk opening 1. a3|A00|Anderssen's opening 1. a4|A00|Ware (Meadow Hay) opening 1. a4 e5 2. h4|A00|Crab opening 1. c3|A00|Saragossa opening 1. d3|A00|Mieses opening 1. d3 e5|A00|Mieses opening 1. d3 e5 2. Nd2|A00|Valencia opening 1. d3 c5 2. Nc3 Nc6 3. g3|A00|Venezolana opening 1. e3|A00|Van't Kruijs opening 1. e3 e5 2. c4 d6 3. Nc3 Nc6 4. b3 Nf6|A00|Amsterdam attack 1. f3|A00|Gedult's opening 1. f3 e5 2. Kf2|A00|Hammerschlag (Fried fox/Pork chop opening) 1. h4|A00|Anti-Borg (Desprez) opening 1. Na3|A00|Durkin's attack 1. b3|A01|Nimzovich-Larsen attack 1. b3 e5|A01|Nimzovich-Larsen attack: modern variation 1. b3 Nf6|A01|Nimzovich-Larsen attack: Indian variation 1. b3 d5|A01|Nimzovich-Larsen attack: classical variation 1. b3 c5|A01|Nimzovich-Larsen attack: English variation 1. b3 f5|A01|Nimzovich-Larsen attack: Dutch variation 1. b3 b5|A01|Nimzovich-Larsen attack: Polish variation 1. b3 b6|A01|Nimzovich-Larsen attack: symmetrical variation 1. f4|A02|Bird's opening 1. f4 e5|A02|Bird: From gambit 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5|A02|Bird: From gambit, Lasker variation 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nh6 5. d4|A02|Bird: From gambit, Lipke variation 1. f4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4|A02|Bird's opening, Swiss gambit 1. f4 g5|A02|Bird: Hobbs gambit 1. f4 d5|A03|Bird's opening 1. f4 d5 2. c4|A03|Mujannah opening 1. f4 d5 2. e4|A03|Bird's opening: Williams gambit 1. f4 d5 2. Nf3 Nf6 3. e3 c5|A03|Bird's opening: Lasker variation 1. Nf3|A04|Reti opening 1. Nf3 f5|A04|Reti v Dutch 1. Nf3 f5 2. e4|A04|Reti: Pirc-Lisitsin gambit 1. Nf3 f5 2. d3 Nf6 3. e4|A04|Reti: Lisitsin gambit deferred 1. Nf3 d6|A04|Reti opening 1. Nf3 d6 2. e4 Bg4|A04|Reti: Wade defence 1. Nf3 g5|A04|Reti: Herrstroem gambit 1. Nf3 Nf6|A05|Reti opening 1. Nf3 Nf6 2. g3 b5|A05|Reti: King's Indian attack, Spassky's variation 1. Nf3 Nf6 2. g3 g6|A05|Reti: King's Indian attack 1. Nf3 Nf6 2. g3 g6 3. b4|A05|Reti: King's Indian attack, Reti-Smyslov variation 1. Nf3 d5|A06|Reti opening 1. Nf3 d5 2. d3|A06|Reti: old Indian attack 1. Nf3 d5 2. b4|A06|Santasiere's folly 1. Nf3 d5 2. e4|A06|Tennison (Lemberg, Zukertort) gambit 1. Nf3 d5 2. b3|A06|Reti: Nimzovich-Larsen attack 1. Nf3 d5 2. g3|A07|Reti: King's Indian attack (Barcza system) 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. O-O Bg4|A07|Reti: King's Indian attack, Yugoslav variation 1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7|A07|Reti: King's Indian attack, Keres variation 1. Nf3 d5 2. g3 g6|A07|Reti: King's Indian attack 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Ne7|A07|Reti: King's Indian attack, Pachman system 1. Nf3 d5 2. g3 c5|A07|Reti: King's Indian attack (with ...c5) 1. Nf3 d5 2. g3 c5 3. Bg2|A08|Reti: King's Indian attack 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. O-O e6 5. d3 Nf6 6. Nbd2 Be7 7. e4 O-O 8. Re1|A08|Reti: King's Indian attack, French variation 1. Nf3 d5 2. c4|A09|Reti opening 1. Nf3 d5 2. c4 d4|A09|Reti: advance variation 1. Nf3 d5 2. c4 dxc4|A09|Reti accepted 1. Nf3 d5 2. c4 dxc4 3. e3 Be6|A09|Reti accepted: Keres variation 1. c4|A10|English opening 1. c4 g6|A10|English opening 1. c4 g6 2. e4 e5|A10|English: Adorjan defence 1. c4 b5|A10|English: Jaenisch gambit 1. c4 f5|A10|English: Anglo-Dutch defense 1. c4 c6|A11|English: Caro-Kann defensive system 1. c4 c6 2. Nf3 d5 3. b3|A12|English: Caro-Kann defensive system 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. g3 Bg4|A12|English: Torre defensive system 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. g3 Bf5|A12|English: London defensive system 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. Bb2|A12|English: Caro-Kann defensive system 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. Bb2 g6|A12|English: Bled variation 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Bf5|A12|English: New York (London) defensive system 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Bg4|A12|English: Capablanca's variation 1. c4 c6 2. Nf3 d5 3. b3 Bg4|A12|English: Caro-Kann defensive system, Bogolyubov variation 1. c4 e6|A13|English opening 1. c4 e6 2. Nf3 Nf6 3. g3 a6 4. Bg2 b5|A13|English: Romanishin gambit 1. c4 e6 2. Nf3 d5|A13|English opening: Agincourt variation 1. c4 e6 2. Nf3 d5 3. b3 Nf6 4. Bb2 c5 5. e3|A13|English: Wimpey system 1. c4 e6 2. Nf3 d5 3. g3|A13|English opening: Agincourt variation 1. c4 e6 2. Nf3 d5 3. g3 c6|A13|English: Kurajica defence 1. c4 e6 2. Nf3 d5 3. g3 Nf6|A13|English: Neo-Catalan 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 dxc4|A13|English: Neo-Catalan accepted 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O|A14|English: Neo-Catalan declined 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O c5 6. cxd5 Nxd5 7. Nc3 Nc6|A14|English: Symmetrical, Keres defence 1. c4 Nf6|A15|English, 1...Nf6 (Anglo-Indian defense) 1. c4 Nf6 2. b4|A15|English orang-utan 1. c4 Nf6 2. Nf3|A15|English opening 1. c4 Nf6 2. Nc3|A16|English opening 1. c4 Nf6 2. Nc3 d5|A16|English: Anglo-Gruenfeld defense 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3|A16|English: Anglo-Gruenfeld, Smyslov defense 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nb6|A16|English: Anglo-Gruenfeld, Czech defense 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3|A16|English: Anglo-Gruenfeld defense 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. g3 Bg7 6. Bg2 e5|A16|English: Anglo-Gruenfeld defense, Korchnoi variation 1. c4 Nf6 2. Nc3 e6|A17|English opening 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6|A17|English: Queens Indian formation 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. e4 Bb7 5. Bd3|A17|English: Queens Indian, Romanishin variation 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4|A17|English: Nimzo-English opening 1. c4 Nf6 2. Nc3 e6 3. e4|A18|English: Mikenas-Carls variation 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5|A18|English: Mikenas-Carls, Flohr variation 1. c4 Nf6 2. Nc3 e6 3. e4 Nc6|A18|English: Mikenas-Carls, Kevitz variation 1. c4 Nf6 2. Nc3 e6 3. e4 c5|A19|English: Mikenas-Carls, Sicilian variation 1. c4 e5|A20|English opening 1. c4 e5 2. Nf3|A20|English, Nimzovich variation 1. c4 e5 2. Nf3 e4|A20|English, Nimzovich, Flohr variation 1. c4 e5 2. Nc3|A21|English opening 1. c4 e5 2. Nc3 d6 3. g3 Be6 4. Bg2 Nc6|A21|English, Troeger defence 1. c4 e5 2. Nc3 d6 3. g3 c6|A21|English, Keres variation 1. c4 e5 2. Nc3 d6 3. Nf3|A21|English opening 1. c4 e5 2. Nc3 d6 3. Nf3 Bg4|A21|English, Smyslov defence 1. c4 e5 2. Nc3 Bb4|A21|English, Kramnik-Shirov counterattack 1. c4 e5 2. Nc3 Nf6|A22|English opening 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 b5|A22|English: Bellon gambit 1. c4 e5 2. Nc3 Nf6 3. g3|A22|English: Carls' Bremen system 1. c4 e5 2. Nc3 Nf6 3. g3 d5|A22|English: Bremen, reverse dragon 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4|A22|English: Bremen, Smyslov system 1. c4 e5 2. Nc3 Nf6 3. g3 c6|A23|English: Bremen system, Keres variation 1. c4 e5 2. Nc3 Nf6 3. g3 g6|A24|English: Bremen system with ...g6 1. c4 e5 2. Nc3 Nc6|A25|English: Sicilian reversed 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7|A25|English: closed system 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Nh6|A25|English: closed, Taimanov variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Be6|A25|English: closed, Hort variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Rb1|A25|English: closed, 5.Rb1 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Rb1 Nh6|A25|English: closed, 5.Rb1 Taimanov variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3|A25|English: closed system (without ...d6) 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6|A26|English: closed system 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4|A26|English: Botvinnik system 1. c4 e5 2. Nc3 Nc6 3. Nf3|A27|English: three knights system 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6|A28|English: four knights system 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: Nenarokov variation 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 e4|A28|English: Bradley Beach variation 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. e4|A28|English: four knights, Nimzovich variation 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. a3|A28|English: four knights, Marini variation 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d3|A28|English: four knights, Capablanca variation 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. e3|A28|English: four knights, 4.e3 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Qf5|A28|English: four knights, Stean variation 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. e3 Bb4 5. Qc2 Bxc3|A28|English: four knights, Romanishin variation 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3|A29|English: four knights, kingside fianchetto 1. c4 c5|A30|English: symmetrical variation 1. c4 c5 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7|A30|English: symmetrical, hedgehog system 1. c4 c5 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 10. b3 Nbd7|A30|English: symmetrical, hedgehog, flexible formation 1. c4 c5 2. Nf3 Nf6 3. d4|A31|English: symmetrical, Benoni formation 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6|A32|English: symmetrical variation 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nc6|A33|English: symmetrical variation 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nc6 6. g3 Qb6|A33|English: symmetrical, Geller variation 1. c4 c5 2. Nc3|A34|English: symmetrical variation 1. c4 c5 2. Nc3 Nf6 3. Nf3 d5 4. cxd5 Nxd5|A34|English: symmetrical, three knights system 1. c4 c5 2. Nc3 Nf6 3. g3|A34|English: symmetrical variation 1. c4 c5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7|A34|English: symmetrical, Rubinstein system 1. c4 c5 2. Nc3 Nc6|A35|English: symmetrical variation 1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6|A35|English: symmetrical, four knights system 1. c4 c5 2. Nc3 Nc6 3. g3|A36|English: symmetrical variation 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7|A36|English: ultra-symmetrical variation 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 e5|A36|English: symmetrical, Botvinnik system reversed 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e4|A36|English: symmetrical, Botvinnik system 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3|A37|English: symmetrical variation 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 e5|A37|English: symmetrical, Botvinnik system reversed 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6|A38|English: symmetrical variation 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. d3|A38|English: symmetrical, main line with d3 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. b3|A38|English: symmetrical, main line with b3 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. d4|A39|English: symmetrical, main line with d4 1. d4|A40|Queen's pawn 1. d4 Nc6|A40|Queen's pawn: Lundin (Kevitz-Mikenas) defence 1. d4 e5|A40|Queen's pawn: Charlick (Englund) gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Qd5 f6 5. exf6 Nxf6|A40|Queen's pawn: Englund gambit 1. d4 b6|A40|Queen's pawn: English defence 1. d4 b5|A40|Polish defence 1. d4 e6|A40|Queen's pawn 1. d4 e6 2. c4 b6|A40|Queen's pawn: Keres defence 1. d4 e6 2. c4 Bb4+|A40|Queen's pawn: Franco-Indian (Keres) defence 1. d4 g6|A40|Modern defence 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 f5|A40|Beefeater defence 1. d4 d6|A41|Queen's Pawn 1. d4 d6 2. Nf3 Bg4|A41|Old Indian: Tartakower (Wade) variation 1. d4 d6 2. c4|A41|Old Indian defence 1. d4 d6 2. c4 g6 3. Nc3 Bg7|A41|Modern defence 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c4 Bg4|A41|Robatsch defence: Rossolimo variation 1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4|A42|Modern defence: Averbakh system 1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4 c5 5. Nf3 Qa5|A42|Pterodactyl defence 1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4 f5|A42|Modern defence: Averbakh system, Randspringer variation 1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4 Nc6|A42|Modern defence: Averbakh system, Kotov variation 1. d4 c5|A43|Old Benoni defence 1. d4 c5 2. d5 e6 3. e4|A43|Old Benoni: Franco-Benoni defence 1. d4 c5 2. d5 f5|A43|Old Benoni: Mujannah formation 1. d4 c5 2. d5 Nf6|A43|Old Benoni defence 1. d4 c5 2. d5 Nf6 3. Nc3 Qa5|A43|Woozle defence 1. d4 c5 2. d5 Nf6 3. Nf3|A43|Old Benoni defence 1. d4 c5 2. d5 Nf6 3. Nf3 c4|A43|Hawk (Habichd) defence 1. d4 c5 2. d5 d6|A43|Old Benoni defence 1. d4 c5 2. d5 d6 3. Nc3 g6|A43|Old Benoni: Schmid's system 1. d4 c5 2. d5 e5|A44|Old Benoni defence 1. d4 c5 2. d5 e5 3. e4 d6|A44|Semi-Benoni (`blockade variation') 1. d4 Nf6|A45|Queen's pawn game 1. d4 Nf6 2. g4|A45|Queen's pawn: Bronstein gambit 1. d4 Nf6 2. f4|A45|Canard opening 1. d4 Nf6 2. f3|A45|Paleface attack 1. d4 Nf6 2. f3 d5 3. e4|A45|Blackmar-Diemer gambit 1. d4 Nf6 2. f3 d5 3. g4|A45|Gedult attack 1. d4 Nf6 2. Bg5|A45|Trompovsky attack (Ruth, Opovcensky opening) 1. d4 Nf6 2. Nf3|A46|Queen's pawn game 1. d4 Nf6 2. Nf3 e6 3. Bg5|A46|Queen's pawn: Torre attack 1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e4|A46|Queen's pawn: Torre attack, Wagner gambit 1. d4 Nf6 2. Nf3 e6 3. e3|A46|Queen's pawn: Yusupov-Rubinstein system 1. d4 Nf6 2. Nf3 Ne4|A46|Doery defence 1. d4 Nf6 2. Nf3 b6|A47|Queen's Indian defence 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5|A47|Queen's Indian: Marienbad system 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. c4 cxd4 6. Qxd4|A47|Queen's Indian: Marienbad system, Berg variation 1. d4 Nf6 2. Nf3 g6|A48|King's Indian: East Indian defence 1. d4 Nf6 2. Nf3 g6 3. Bg5|A48|King's Indian: Torre attack 1. d4 Nf6 2. Nf3 g6 3. Bf4|A48|King's Indian: London system 1. d4 Nf6 2. Nf3 g6 3. g3|A49|King's Indian: fianchetto without c4 1. d4 Nf6 2. c4|A50|Queen's pawn game 1. d4 Nf6 2. c4 Nc6|A50|Kevitz-Trajkovich defence 1. d4 Nf6 2. c4 b6|A50|Queen's Indian accelerated 1. d4 Nf6 2. c4 e5|A51|Budapest defence declined 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4|A51|Budapest: Fajarowicz variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. Qc2|A51|Budapest: Fajarowicz, Steiner variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4|A52|Budapest defence 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3|A52|Budapest: Adler variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4|A52|Budapest: Rubinstein variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4|A52|Budapest: Alekhine variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Nec6|A52|Budapest: Alekhine, Abonyi variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 d6|A52|Budapest: Alekhine variation, Balogh gambit 1. d4 Nf6 2. c4 d6|A53|Old Indian defence 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5|A53|Old Indian: Janowski variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5|A54|Old Indian: Ukrainian variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. e3 Nbd7 5. Bd3|A54|Old Indian: Dus-Khotimirsky variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3|A54|Old Indian: Ukrainian variation, 4.Nf3 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4|A55|Old Indian: main line 1. d4 Nf6 2. c4 c5|A56|Benoni defence 1. d4 Nf6 2. c4 c5 3. d5 d6|A56|Benoni defence, Hromodka system 1. d4 Nf6 2. c4 c5 3. d5 Ne4|A56|Vulture defence 1. d4 Nf6 2. c4 c5 3. d5 e5|A56|Czech Benoni defence 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 g6|A56|Czech Benoni: King's Indian system 1. d4 Nf6 2. c4 c5 3. d5 b5|A57|Benko gambit 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6|A57|Benko gambit half accepted 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3|A57|Benko gambit: Zaitsev system 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d6 8. Bc4|A57|Benko gambit: Nescafe Frappe attack 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6|A58|Benko gambit accepted 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. Nd2|A58|Benko gambit: Nd2 variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3|A58|Benko gambit: fianchetto variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4|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 Bxf1 8. Kxf1 g6 9. Nge2|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. g3|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 Bg7 10. Kg2 O-O 11. Nf3|A59|Benko gambit: main line 1. d4 Nf6 2. c4 c5 3. d5 e6|A60|Benoni defence 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6|A61|Benoni defence 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bg5|A61|Benoni: Uhlmann variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2|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. g3|A61|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 O-O|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 O-O 9. O-O Nbd7|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 O-O 9. O-O Nbd7 10. Nd2 a6 11. a4 Re8|A64|Benoni: fianchetto, 11...Re8 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4|A65|Benoni: 6.e4 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4|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 Bg7 8. e5|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. Bb5+|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. Nf3 O-O|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 O-O 9. Be2 Re8|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. Nf3|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 Bg7 8. Be2|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. Bg5|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. Be2 O-O|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 O-O 9. O-O|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 O-O 9. O-O a6 10. a4|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 O-O 9. O-O a6 10. a4 Bg4|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 O-O 9. O-O Re8|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 O-O 9. O-O Re8 10. Nd2|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 O-O 9. O-O Re8 10. Nd2 Na6|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 O-O 9. O-O Re8 10. Nd2 Na6 11. f3|A79|Benoni: classical, 11.f3 1. d4 f5|A80|Dutch 1. d4 f5 2. Nc3 Nf6 3. g4|A80|Dutch, Spielmann gambit 1. d4 f5 2. Qd3|A80|Dutch, Manhattan (Alapin, Ulvestad) variation 1. d4 f5 2. Qd3 e6 3. g4|A80|Dutch, Von Pretzel gambit 1. d4 f5 2. h3|A80|Dutch, Korchnoi attack 1. d4 f5 2. g4|A80|Dutch, Krejcik gambit 1. d4 f5 2. Bg5|A80|Dutch, 2.Bg5 variation 1. d4 f5 2. g3|A81|Dutch defence 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nh3|A81|Dutch defence, Blackburne variation 1. d4 f5 2. g3 Nf6 3. Bg2 g6|A81|Dutch defence 1. d4 f5 2. g3 g6 3. Bg2 Bg7 4. Nf3 c6 5. O-O Nh6|A81|Dutch: Leningrad, Basman system 1. d4 f5 2. g3 g6 3. Bg2 Bg7 4. Nh3|A81|Dutch: Leningrad, Karlsbad variation 1. d4 f5 2. e4|A82|Dutch: Staunton gambit 1. d4 f5 2. e4 d6|A82|Dutch: Balogh defence 1. d4 f5 2. e4 fxe4|A82|Dutch: Staunton gambit 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4|A82|Dutch: Staunton gambit, Tartakower variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5|A83|Dutch: Staunton gambit, Staunton's line 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. h4|A83|Dutch: Staunton gambit, Alekhine variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. f3|A83|Dutch: Staunton gambit, Lasker variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 c6|A83|Dutch: Staunton gambit, Chigorin variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 b6|A83|Dutch: Staunton gambit, Nimzovich variation 1. d4 f5 2. c4|A84|Dutch defence 1. d4 f5 2. c4 g6 3. Nc3 Nh6|A84|Dutch defence: Bladel variation 1. d4 f5 2. c4 e6|A84|Dutch defence 1. d4 f5 2. c4 e6 3. Nc3|A84|Dutch defence, Rubinstein variation 1. d4 f5 2. c4 e6 3. e4|A84|Dutch: Staunton gambit deferred 1. d4 f5 2. c4 Nf6|A84|Dutch defence 1. d4 f5 2. c4 Nf6 3. Nc3|A85|Dutch with c4 & Nc3 1. d4 f5 2. c4 Nf6 3. g3|A86|Dutch with c4 & g3 1. d4 f5 2. c4 Nf6 3. g3 d6 4. Bg2 c6 5. Nc3 Qc7|A86|Dutch: Hort-Antoshin system 1. d4 f5 2. c4 Nf6 3. g3 g6|A86|Dutch: Leningrad variation 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3|A87|Dutch: Leningrad, main variation 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 O-O 6. O-O d6 7. Nc3 c6|A88|Dutch: Leningrad, main variation with c6 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 O-O 6. O-O d6 7. Nc3 Nc6|A89|Dutch: Leningrad, main variation with Nc6 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2|A90|Dutch defence 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Bb4+|A90|Dutch defence: Dutch-Indian (Nimzo-Dutch) variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Bb4+ 5. Bd2 Be7|A90|Dutch-Indian, Alekhine variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7|A91|Dutch defence 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O|A92|Dutch defence 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O Ne4|A92|Dutch defence, Alekhine variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5|A92|Dutch: stonewall variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. Nc3|A92|Dutch: stonewall with Nc3 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. b3|A93|Dutch: stonewall, Botwinnik variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. b3 c6 8. Ba3|A94|Dutch: stonewall with Ba3 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. Nc3 c6|A95|Dutch: stonewall with Nc3 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. Nc3 c6 8. Qc2 Qe8 9. Bg5|A95|Dutch: stonewall: Chekhover variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6|A96|Dutch: classical variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8|A97|Dutch: Ilyin-Genevsky variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. Re1|A97|Dutch: Ilyin-Genevsky, Winter variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. Qc2|A98|Dutch: Ilyin-Genevsky variation with Qc2 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. b3|A99|Dutch: Ilyin-Genevsky variation with b3 1. e4|B00|King's pawn opening 1. e4 Nh6 2. d4 g6 3. c4 f6|B00|Hippopotamus defence 1. e4 a5|B00|Corn stalk defence 1. e4 Na6|B00|Lemming defence 1. e4 f5|B00|Fred 1. e4 f6|B00|Barnes defence 1. e4 f6 2. d4 Kf7|B00|Fried fox defence 1. e4 h6|B00|Carr's defence 1. e4 g5|B00|Reversed Grob (Borg/Basman defence/macho Grob) 1. e4 a6|B00|St. George (Baker) defence 1. e4 b6|B00|Owen defence 1. e4 b6 2. d4 Ba6|B00|Guatemala defence 1. e4 Nc6|B00|KP: Nimzovich defence 1. e4 Nc6 2. b4 Nxb4 3. c3 Nc6 4. d4|B00|KP: Nimzovich defence, Wheeler gambit 1. e4 Nc6 2. Nf3|B00|KP: Nimzovich defence 1. e4 Nc6 2. Nf3 f5|B00|KP: Colorado counter 1. e4 Nc6 2. d4|B00|KP: Nimzovich defence 1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nc3|B00|KP: Nimzovich defence, Marshall gambit 1. e4 Nc6 2. d4 d5 3. Nc3|B00|KP: Nimzovich defence, Bogolyubov variation 1. e4 Nc6 2. d4 f6|B00|KP: Neo-Mongoloid defence 1. e4 d5|B01|Scandinavian (centre counter) defence 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3|B01|Scandinavian defence, Lasker variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5|B01|Scandinavian defence 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Ne5 c6 7. g4|B01|Scandinavian defence, Gruenfeld variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5|B01|Scandinavian: Anderssen counter-attack 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. dxe5 Bb4 6. Bd2 Nc6 7. Nf3|B01|Scandinavian: Anderssen counter-attack orthodox attack 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3|B01|Scandinavian: Anderssen counter-attack, Goteborg system 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 Bg4|B01|Scandinavian: Anderssen counter-attack, Collijn variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4|B01|Scandinavian, Mieses-Kotrvc gambit 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6|B01|Scandinavian: Pytel-Wade variation 1. e4 d5 2. exd5 Nf6|B01|Scandinavian defence 1. e4 d5 2. exd5 Nf6 3. c4 e6|B01|Scandinavian: Icelandic gambit 1. e4 d5 2. exd5 Nf6 3. c4 c6|B01|Scandinavian gambit 1. e4 d5 2. exd5 Nf6 3. d4|B01|Scandinavian defence 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5|B01|Scandinavian: Marshall variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb4|B01|Scandinavian: Kiel variation 1. e4 d5 2. exd5 Nf6 3. d4 g6|B01|Scandinavian: Richter variation 1. e4 Nf6|B02|Alekhine's defence 1. e4 Nf6 2. Nc3 d5|B02|Alekhine's defence: Scandinavian variation 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. e6|B02|Alekhine's defence: Spielmann variation 1. e4 Nf6 2. d3|B02|Alekhine's defence: Maroczy variation 1. e4 Nf6 2. Bc4|B02|Alekhine's defence: Krejcik variation 1. e4 Nf6 2. e5 Ne4|B02|Alekhine's defence: Mokele Mbembe (Buecker) variation 1. e4 Nf6 2. e5 Ng8|B02|Alekhine's defence: Brooklyn defence 1. e4 Nf6 2. e5 Nd5|B02|Alekhine's defence 1. e4 Nf6 2. e5 Nd5 3. Bc4 Nb6 4. Bb3 c5 5. d3|B02|Alekhine's defence: Kmoch variation 1. e4 Nf6 2. e5 Nd5 3. Nc3|B02|Alekhine's defence: Saemisch attack 1. e4 Nf6 2. e5 Nd5 3. b3|B02|Alekhine's defence: Welling variation 1. e4 Nf6 2. e5 Nd5 3. c4|B02|Alekhine's defence 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. b3|B02|Alekhine's defence: Steiner variation 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5|B02|Alekhine's defence: two pawns' (Lasker's) attack 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6|B02|Alekhine's defence: two pawns' attack, Mikenas variation 1. e4 Nf6 2. e5 Nd5 3. d4|B03|Alekhine's defence 1. e4 Nf6 2. e5 Nd5 3. d4 b5|B03|Alekhine's defence: O'Sullivan gambit 1. e4 Nf6 2. e5 Nd5 3. d4 d6|B03|Alekhine's defence 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4|B03|Alekhine's defence: Balogh variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4|B03|Alekhine's defence 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6|B03|Alekhine's defence: exchange variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nf3 g6 7. Be2 Bg7 8. O-O O-O 9. h3 Nc6 10. Nc3 Bf5 11. Bf4|B03|Alekhine's defence: exchange, Karpov variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4|B03|Alekhine's defence: four pawns attack 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 O-O 10. O-O f6|B03|Alekhine's defence: four pawns attack, Korchnoi variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6|B03|Alekhine's defence: four pawns attack, 6...Nc6 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 defence: four pawns attack, Ilyin-Genevsky var. 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3|B03|Alekhine's defence: four pawns attack, 7.Be3 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 Qd7 10. Be2 O-O-O 11. O-O Be7|B03|Alekhine's defence: four pawns attack, Tartakower variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g5|B03|Alekhine's defence: four pawns attack, Planinc variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g6|B03|Alekhine's defence: four pawns attack, fianchetto variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5|B03|Alekhine's defence: four pawns attack, Trifunovic variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3|B04|Alekhine's defence: modern variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5|B04|Alekhine's defence: modern, Larsen variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nb6|B04|Alekhine's defence: modern, Schmid variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6|B04|Alekhine's defence: modern, fianchetto variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. a4|B04|Alekhine's defence: modern, Keres variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4|B05|Alekhine's defence: modern variation, 4...Bg4 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 c6|B05|Alekhine's defence: modern, Flohr variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. h3|B05|Alekhine's defence: modern, Panov variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4|B05|Alekhine's defence: modern, Alekhine variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 Nb6 6. d5|B05|Alekhine's defence: modern, Vitolins attack 1. e4 g6|B06|Robatsch (modern) defence 1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. g4 Ng7|B06|Norwegian defence 1. e4 g6 2. d4 Bg7|B06|Robatsch (modern) defence 1. e4 g6 2. d4 Bg7 3. f4|B06|Robatsch defence: three pawns attack 1. e4 g6 2. d4 Bg7 3. Nc3|B06|Robatsch defence 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5|B06|Robatsch defence: Gurgenidze variation 1. e4 g6 2. d4 Bg7 3. Nc3 d6|B06|Robatsch (modern) defence 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3|B06|Robatsch defence: two knights variation 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 c6|B06|Robatsch defence: two knights, Suttles variation 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4|B06|Robatsch defence: Pseudo-Austrian attack 1. e4 d6 2. d4 Nf6 3. Nc3|B07|Pirc defence 1. e4 d6 2. d4 Nf6 3. Nc3 c6|B07|Pirc: Ufimtsev-Pytel variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6|B07|Pirc defence 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2|B07|Pirc: 150 attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. g3|B07|Pirc: Sveshnikov system 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4|B07|Pirc: Holmov system 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5|B07|Pirc: Byrne variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2|B07|Pirc defence 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. g4|B07|Pirc: Chinese variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. h4|B07|Pirc: bayonet (Mariotti) attack 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3|B07|Robatsch defence: Geller's 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 (two knights) system 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3|B08|Pirc: classical, h3 system 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2|B08|Pirc: classical system, 5.Be2 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 O-O|B09|Pirc: Austrian attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5|B09|Pirc: Austrian attack, 6.e5 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3|B09|Pirc: Austrian attack, 6.Be3 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3|B09|Pirc: Austrian attack, 6.Bd3 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5|B09|Pirc: Austrian attack, dragon formation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Bc4|B09|Pirc: Austrian attack, Ljubojevic variation 1. e4 c6|B10|Caro-Kann defence 1. e4 c6 2. Bc4|B10|Caro-Kann: Hillbilly attack 1. e4 c6 2. c4|B10|Caro-Kann: anti-Caro-Kann defence 1. e4 c6 2. c4 d5|B10|Caro-Kann: anti-anti-Caro-Kann defence 1. e4 c6 2. d3|B10|Caro-Kann: closed (Breyer) variation 1. e4 c6 2. Nc3|B10|Caro-Kann defence 1. e4 c6 2. Nc3 d5 3. Qf3|B10|Caro-Kann: Goldman (Spielmann) variation 1. e4 c6 2. Nc3 d5 3. Nf3|B10|Caro-Kann: two knights variation 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4|B11|Caro-Kann: two knights, 3...Bg4 1. e4 c6 2. d4|B12|Caro-Kann defence 1. e4 c6 2. d4 Na6 3. Nc3 Nc7|B12|de Bruycker defence 1. e4 c6 2. d4 Nf6|B12|Caro-Masi defence 1. e4 c6 2. d4 d5|B12|Caro-Kann defence 1. e4 c6 2. d4 d5 3. f3|B12|Caro-Kann: Tartakower (fantasy) variation 1. e4 c6 2. d4 d5 3. Nd2|B12|Caro-Kann: 3.Nd2 1. e4 c6 2. d4 d5 3. Nd2 Qb6|B12|Caro-Kann: Edinburgh variation 1. e4 c6 2. d4 d5 3. e5|B12|Caro-Kann: advance variation 1. e4 c6 2. d4 d5 3. e5 Bf5 4. c3 e6 5. Be2|B12|Caro-Kann: advance, Short variation 1. e4 c6 2. d4 d5 3. exd5|B13|Caro-Kann: exchange variation 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4|B13|Caro-Kann: exchange, Rubinstein variation 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4|B13|Caro-Kann: Panov-Botvinnik attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. c5|B13|Caro-Kann: Panov-Botvinnik, Gunderam attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3|B13|Caro-Kann: Panov-Botvinnik attack 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, Herzog defence 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 e6|B13|Caro-Kann: Panov-Botvinnik, normal variation 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Qa5|B13|Caro-Kann: Panov-Botvinnik, Czerniak variation 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Qb6|B13|Caro-Kann: Panov-Botvinnik, Reifir (Spielmann) variation 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6|B14|Caro-Kann: Panov-Botvinnik attack, 5...e6 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6|B14|Caro-Kann: Panov-Botvinnik attack, 5...g6 1. e4 c6 2. d4 d5 3. Nc3|B15|Caro-Kann defence 1. e4 c6 2. d4 d5 3. Nc3 b5|B15|Caro-Kann: Gurgenidze counter-attack 1. e4 c6 2. d4 d5 3. Nc3 g6|B15|Caro-Kann: Gurgenidze system 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. f3|B15|Caro-Kann: Rasa-Studier gambit 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4|B15|Caro-Kann defence 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Bd3|B15|Caro-Kann: Alekhine gambit 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6|B15|Caro-Kann: Tartakower (Nimzovich) variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4|B15|Caro-Kann: Forgacs variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6|B16|Caro-Kann: Bronstein-Larsen variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7|B17|Caro-Kann: Steinitz variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5|B18|Caro-Kann: classical variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nh3|B18|Caro-Kann: classical, Flohr variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. f4|B18|Caro-Kann: classical, Maroczy attack 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4|B18|Caro-Kann: classical, 6.h4 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7|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 Nd7 8. h5|B19|Caro-Kann: classical, Spassky variation 1. e4 c5|B20|Sicilian defence 1. e4 c5 2. c4 d6 3. Nc3 Nc6 4. g3 h5|B20|Sicilian: Gloria variation 1. e4 c5 2. g3|B20|Sicilian: Steinitz variation 1. e4 c5 2. b4|B20|Sicilian: wing gambit 1. e4 c5 2. b4 cxb4 3. c4|B20|Sicilian: wing gambit, Santasiere variation 1. e4 c5 2. b4 cxb4 3. a3|B20|Sicilian: wing gambit, Marshall variation 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Bb2|B20|Sicilian: wing gambit, Marienbad variation 1. e4 c5 2. b4 cxb4 3. a3 bxa3|B20|Sicilian: wing gambit, Carlsbad variation 1. e4 c5 2. Ne2|B20|Sicilian: Keres variation (2.Ne2) 1. e4 c5 2. f4|B21|Sicilian: Grand Prix attack 1. e4 c5 2. d4|B21|Sicilian: Smith-Morra gambit 1. e4 c5 2. d4 cxd4 3. Nf3 e5 4. c3|B21|Sicilian: Andreaschek gambit 1. e4 c5 2. d4 cxd4 3. c3|B21|Sicilian: Smith-Morra gambit 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 7. O-O a6 8. Qe2 b5 9. Bb3 Ra7|B21|Sicilian: Smith-Morra gambit, Chicago defence 1. e4 c5 2. c3|B22|Sicilian: Alapin's variation (2.c3) 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Na3|B22|Sicilian: 2.c3, Heidenfeld variation 1. e4 c5 2. Nc3|B23|Sicilian: closed 1. e4 c5 2. Nc3 e6 3. g3 d5|B23|Sicilian: closed, Korchnoi variation 1. e4 c5 2. Nc3 Nc6|B23|Sicilian: closed, 2...Nc6 1. e4 c5 2. Nc3 Nc6 3. Nge2|B23|Sicilian: chameleon variation 1. e4 c5 2. Nc3 Nc6 3. f4|B23|Sicilian: Grand Prix attack 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. f5|B23|Sicilian: Grand Prix attack, Schofman variation 1. e4 c5 2. Nc3 Nc6 3. g3|B24|Sicilian: closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Nd4 7. Nce2|B24|Sicilian: closed, Smyslov variation 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6|B25|Sicilian: closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5|B25|Sicilian: closed, 6.Ne2 e5 (Botvinnik) 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4|B25|Sicilian: closed, 6.f4 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5|B25|Sicilian: closed, 6.f4 e5 (Botvinnik) 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3|B26|Sicilian: closed, 6.Be3 1. e4 c5 2. Nf3|B27|Sicilian defence 1. e4 c5 2. Nf3 Qa5|B27|Sicilian: Stiletto (Althouse) variation 1. e4 c5 2. Nf3 Qc7|B27|Sicilian: Quinteros variation 1. e4 c5 2. Nf3 b6|B27|Sicilian: Katalimov variation 1. e4 c5 2. Nf3 g6|B27|Sicilian: Hungarian variation 1. e4 c5 2. Nf3 g6 3. c4 Bh6|B27|Sicilian: Acton extension 1. e4 c5 2. Nf3 a6|B28|Sicilian: O'Kelly variation 1. e4 c5 2. Nf3 Nf6|B29|Sicilian: Nimzovich-Rubinstein variation 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 e6 5. Nxd5 exd5 6. d4 Nc6|B29|Sicilian: Nimzovich-Rubinstein; Rubinstein counter-gambit 1. e4 c5 2. Nf3 Nc6|B30|Sicilian defence 1. e4 c5 2. Nf3 Nc6 3. Bb5|B30|Sicilian: Nimzovich-Rossolimo attack (without ...d6) 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6|B31|Sicilian: Nimzovich-Rossolimo attack (with ...g6, without ...d6) 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. b4|B31|Sicilian: Nimzovich-Rossolimo attack, Gurgenidze variation 1. e4 c5 2. Nf3 Nc6 3. d4|B32|Sicilian defence 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7|B32|Sicilian: Flohr variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5|B32|Sicilian: Nimzovich variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5|B32|Sicilian: Labourdonnais-Loewenthal variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6|B32|Sicilian: Labourdonnais-Loewenthal (Kalashnikov) variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6|B33|Sicilian defence 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5|B33|Sicilian: Pelikan (Lasker/Sveshnikov) variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6|B33|Sicilian: Pelikan, Bird variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5|B33|Sicilian: Pelikan, Chelyabinsk variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5|B33|Sicilian: Sveshnikov variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6|B34|Sicilian: accelerated fianchetto, exchange variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3|B34|Sicilian: accelerated fianchetto, modern variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4|B35|Sicilian: accelerated fianchetto, modern variation with Bc4 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4|B36|Sicilian: accelerated fianchetto, Maroczy bind 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6|B36|Sicilian: accelerated fianchetto, Gurgenidze variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7|B37|Sicilian: accelerated fianchetto, Maroczy bind, 5...Bg7 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Nc2 d6 7. Be2 Nh6|B37|Sicilian: accelerated fianchetto, Simagin variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3|B38|Sicilian: accelerated fianchetto, Maroczy bind, 6.Be3 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4|B39|Sicilian: accelerated fianchetto, Breyer variation 1. e4 c5 2. Nf3 e6|B40|Sicilian defence 1. e4 c5 2. Nf3 e6 3. d4 d5|B40|Sicilian: Marshall variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4|B40|Sicilian defence 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6|B40|Sicilian: Anderssen variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4|B40|Sicilian: Pin variation (Sicilian counter-attack) 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 e5|B40|Sicilian: Pin, Jaffe variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5|B40|Sicilian: Pin, Koch variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6|B41|Sicilian: Kan variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4|B41|Sicilian: Kan, Maroczy bind (Reti variation) 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Bc2|B41|Sicilian: Kan, Maroczy bind - Bronstein variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3|B42|Sicilian: Kan, 5.Bd3 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O d6 7. c4 g6|B42|Sicilian: Kan, Gipslis variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5|B42|Sicilian: Kan, Polugaievsky variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 g6|B42|Sicilian: Kan, Swiss cheese variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3|B43|Sicilian: Kan, 5.Nc3 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6|B44|Sicilian defence 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5|B44|Sicilian, Szen (`anti-Taimanov') variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 Be7 9. Be2 O-O 10. O-O b6|B44|Sicilian, Szen, hedgehog variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 d5|B44|Sicilian, Szen variation, Dely-Kasparov gambit 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3|B45|Sicilian: Taimanov variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bb4 7. Nd6+|B45|Sicilian: Taimanov, American attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6|B46|Sicilian: Taimanov variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7|B47|Sicilian: Taimanov (Bastrikov) variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3|B48|Sicilian: Taimanov variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2|B49|Sicilian: Taimanov variation 1. e4 c5 2. Nf3 d6|B50|Sicilian 1. e4 c5 2. Nf3 d6 3. b4|B50|Sicilian: wing gambit deferred 1. e4 c5 2. Nf3 d6 3. Bb5+|B51|Sicilian: Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7|B52|Sicilian: Canal-Sokolsky attack, 3...Bd7 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. c3 Nf6 7. d4|B52|Sicilian: Canal-Sokolsky attack, Bronstein gambit 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4|B52|Sicilian: Canal-Sokolsky attack, Sokolsky variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4|B53|Sicilian, Chekhover variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Qd7|B53|Sicilian: Chekhover, Zaitsev variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4|B54|Sicilian 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3|B54|Sicilian: Prins (Moscow) variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Bb5+|B55|Sicilian: Prins variation, Venice attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3|B56|Sicilian 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Bb5+|B56|Sicilian: Venice attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6|B56|Sicilian 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4|B57|Sicilian: Sozin, not Scheveningen 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: Magnus Smith trap 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6|B57|Sicilian: Sozin, Benko variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2|B58|Sicilian: classical 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5|B58|Sicilian: Boleslavsky variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nxc6|B58|Sicilian: Boleslavsky, Louma variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3|B59|Sicilian: Boleslavsky variation, 7.Nb3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5|B60|Sicilian: Richter-Rauzer 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 g6|B60|Sicilian: Richter-Rauzer, Bondarevsky variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7|B60|Sicilian: Richter-Rauzer, Larsen variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 7. Qd2|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 e6|B62|Sicilian: Richter-Rauzer, 6...e6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Nb3|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. Bb5|B62|Sicilian: Richter-Rauzer, Margate (Alekhine) variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Nxc6|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. Qd3|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. Qd2|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 Be7|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 8. O-O-O O-O 9. f4|B64|Sicilian: 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. O-O-O O-O 9. f4 e5|B64|Sicilian: Richter-Rauzer, Rauzer attack, Geller variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4|B65|Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4 10. Qxd4|B65|Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6|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 8. O-O-O Bd7|B67|Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7|B68|Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6|B69|Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6|B70|Sicilian: dragon variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4|B71|Sicilian: dragon, Levenfish variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nbd7|B71|Sicilian: dragon, Levenfish; Flohr variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3|B72|Sicilian: dragon, 6.Be3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2|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 Nc6 8. Qd2|B72|Sicilian: dragon, classical, Amsterdam variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. Qd2 O-O 9. O-O-O|B72|Sicilian: dragon, classical, Grigoriev variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. Nb3|B72|Sicilian: dragon, classical, Nottingham variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. O-O|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. O-O O-O 9. f4 Qb6 10. e5|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. O-O O-O 9. Qd2|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. O-O O-O 9. Nb3|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. O-O O-O 9. Nb3 Be6 10. f4 Na5 11. f5 Bc4 12. Nxa5 Bxe2 13. Qxe2 Qxa5 14. g4|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. O-O O-O 9. Nb3 Be6 10. f4 Na5 11. f5 Bc4 12. Bd3|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. O-O O-O 9. Nb3 Be6 10. f4 Na5 11. f5 Bc4 12. Bd3 Bxd3 13. cxd3 d5|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. O-O O-O 9. Nb3 Be6 10. f4 Qc8|B74|Sicilian: dragon, classical, Reti-Tartakower variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. O-O O-O 9. Nb3 a5|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. f3|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 O-O|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 O-O 8. Qd2 Nc6 9. O-O-O|B76|Sicilian: dragon, Yugoslav attack, Rauser variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4|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 O-O 8. Qd2 Nc6 9. Bc4 a5|B77|Sicilian: dragon, Yugoslav attack, Byrne variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7|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 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O|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 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Qa5 11. Bb3 Rfc8 12. h4|B79|Sicilian: dragon, Yugoslav attack, 12.h4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6|B80|Sicilian: Scheveningen variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 a6 7. Qd2|B80|Sicilian: Scheveningen, English variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bb5+|B80|Sicilian: Scheveningen, Vitolins variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3|B80|Sicilian: Scheveningen, fianchetto variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4|B81|Sicilian: Scheveningen, Keres attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. f4|B82|Sicilian: Scheveningen, 6.f4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. f4 Nc6 7. Be3 Be7 8. Qf3|B82|Sicilian: Scheveningen, Tal variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2|B83|Sicilian: Scheveningen, 6.Be2 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 Nc6|B83|Sicilian: modern Scheveningen 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 Nc6 7. O-O Be7 8. Be3 O-O 9. f4|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. O-O Be7 8. Be3 O-O 9. f4 Bd7 10. Nb3|B83|Sicilian: modern Scheveningen, main line with Nb3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6|B84|Sicilian: Scheveningen (Paulsen), classical variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6 7. O-O Nbd7|B84|Sicilian: Scheveningen, classical, Nd7 system 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6 7. O-O Qc7|B84|Sicilian: Scheveningen (Paulsen), classical variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6 7. O-O Qc7 8. f4 Nc6|B85|Sicilian: Scheveningen, classical variation with ...Qc7 and ...Nc6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6 7. O-O Qc7 8. f4 Nc6 9. Kh1 Be7 10. a4|B85|Sicilian: Scheveningen, classical, Maroczy system 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6 7. O-O Qc7 8. f4 Nc6 9. Be3|B85|Sicilian: Scheveningen, classical 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6 7. O-O Qc7 8. f4 Nc6 9. Be3 Be7 10. Qe1 O-O|B85|Sicilian: Scheveningen, classical main line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4|B86|Sicilian: Sozin attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 a6 7. Bb3 b5|B87|Sicilian: Sozin with ...a6 and ...b5 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 Nc6|B88|Sicilian: Sozin, Leonhardt variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 Nc6 7. Bb3 Be7 8. Be3 O-O 9. f4|B88|Sicilian: Sozin, Fischer variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 Nc6 7. Be3|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 Be7 8. Qe2|B89|Sicilian: Velimirovic attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6|B90|Sicilian: Najdorf 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3|B90|Sicilian: Najdorf, Adams attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4|B90|Sicilian: Najdorf, Lipnitzky attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3|B90|Sicilian: Najdorf, Byrne (English) attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3|B91|Sicilian: Najdorf, Zagreb (fianchetto) variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2|B92|Sicilian: Najdorf, Opovcensky variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4|B93|Sicilian: Najdorf, 6.f4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5|B94|Sicilian: Najdorf, 6.Bg5 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. O-O-O b5 10. Bb3 Bb7 11. Rhe1 Nc5 12. e5|B94|Sicilian: Najdorf, Ivkov variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6|B95|Sicilian: Najdorf, 6...e6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4|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 b5|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 8. e5 dxe5 9. fxe5 Qc7 10. Qe2|B96|Sicilian: Najdorf, Polugayevsky, Simagin variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6|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 8. Qd2 Qxb2 9. Rb1 Qa3|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 Be7|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 8. Qf3 h6 9. Bh4 Qc7|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 g5|B98|Sicilian: Najdorf, Goteborg (Argentine) 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|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 9. O-O-O Nbd7|B99|Sicilian: Najdorf, 7...Be7 main line 1. e4 e6|C00|French defence 1. e4 e6 2. c4|C00|French defence, Steiner variation 1. e4 e6 2. b3|C00|French: Reti (Spielmann) variation 1. e4 e6 2. e5|C00|French: Steinitz attack 1. e4 e6 2. f4|C00|French: Labourdonnais variation 1. e4 e6 2. Nf3|C00|French defence 1. e4 e6 2. Nf3 d5 3. e5 c5 4. b4|C00|French: Wing gambit 1. e4 e6 2. Nc3|C00|French defence 1. e4 e6 2. Nc3 d5 3. f4|C00|French: Pelikan variation 1. e4 e6 2. Nc3 d5 3. Nf3|C00|French: Two knights variation 1. e4 e6 2. Qe2|C00|French: Chigorin variation 1. e4 e6 2. d3|C00|French: King's Indian attack 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 Nc6 5. Be2|C00|French: Reversed Philidor formation 1. e4 e6 2. d4|C00|French defence 1. e4 e6 2. d4 d6|C00|Lengfellner system 1. e4 e6 2. d4 a6|C00|St. George defence 1. e4 e6 2. d4 d5|C00|French defence 1. e4 e6 2. d4 d5 3. Bd3|C00|French: Schlechter variation 1. e4 e6 2. d4 d5 3. Be3|C00|French: Alapin variation 1. e4 e6 2. d4 d5 3. exd5|C01|French: exchange variation 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bg5|C01|French: exchange, Svenonius variation 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bg5 Nc6|C01|French: exchange, Bogolyubov variation 1. e4 e6 2. d4 d5 3. e5|C02|French: advance variation 1. e4 e6 2. d4 d5 3. e5 c5 4. dxc5|C02|French: advance, Steinitz variation 1. e4 e6 2. d4 d5 3. e5 c5 4. Qg4|C02|French: advance, Nimzovich variation 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3|C02|French: advance, Nimzovich system 1. e4 e6 2. d4 d5 3. e5 c5 4. c3|C02|French: advance variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7|C02|French: advance, Wade variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6|C02|French: advance variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3|C02|French: advance, Paulsen attack 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3|C02|French: advance, Milner-Barry gambit 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7|C02|French: advance, Euwe variation 1. e4 e6 2. d4 d5 3. Nd2|C03|French: Tarrasch 1. e4 e6 2. d4 d5 3. Nd2 f5|C03|French: Tarrasch, Haberditz variation 1. e4 e6 2. d4 d5 3. Nd2 Nc6|C03|French: Tarrasch, Guimard variation 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6|C04|French: Tarrasch, Guimard main line 1. e4 e6 2. d4 d5 3. Nd2 Nf6|C05|French: Tarrasch, closed variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 b6|C05|French: Tarrasch, Botvinnik variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6|C05|French: Tarrasch, closed variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4|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 cxd4 8. cxd4 Nb6|C06|French: Tarrasch, Leningrad variation 1. e4 e6 2. d4 d5 3. Nd2 c5|C07|French: Tarrasch, open variation 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8|C07|French: Tarrasch, Eliskases variation 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5|C08|French: Tarrasch, open, 4.ed ed 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6|C09|French: Tarrasch, open variation, main line 1. e4 e6 2. d4 d5 3. Nc3|C10|French: Paulsen variation 1. e4 e6 2. d4 d5 3. Nc3 c5|C10|French: Marshall variation 1. e4 e6 2. d4 d5 3. Nc3 dxe4|C10|French: Rubinstein variation 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6|C10|French: Fort Knox variation 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7|C10|French: Rubinstein variation 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Ne5|C10|French: Rubinstein, Capablanca line 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Qd5|C10|French: Frere (Becker) variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6|C11|French defence 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bd3|C11|French: Swiss variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Be3|C11|French: Henneberger variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5|C11|French: Steinitz variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Bxc5 7. Qg4|C11|French: Steinitz, Bradford attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Nc6|C11|French: Steinitz variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Nc6 7. a3 Bxc5 8. Qg4 O-O 9. Nf3 f6|C11|French: Steinitz, Brodsky-Jones variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3|C11|French: Steinitz variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3|C11|French: Steinitz, Boleslavsky variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Qg4|C11|French: Steinitz, Gledhill attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4|C11|French: Burn variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4|C12|French: MacCutcheon 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, Bogolyubov variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5|C12|French: MacCutcheon, advance variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. exf6|C12|French: MacCutcheon, Chigorin 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, Grigoriev variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bh4|C12|French: MacCutcheon, Bernstein variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Be3|C12|French: MacCutcheon, Janowski variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bc1|C12|French: MacCutcheon, Dr. Olland (Dutch) variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Nfd7|C12|French: MacCutcheon, Tartakower variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3|C12|French: MacCutcheon, Lasker variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4 Kf8 9. Bc1|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 Ne4 8. Qg4 g6|C12|French: MacCutcheon, Lasker variation, 8...g6 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7|C13|French: classical 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6|C13|French: classical, Anderssen variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 Bxf6 6. e5 Be7 7. Qg4|C13|French: classical, Anderssen-Richter variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ng8|C13|French: classical, Vistaneckis (Nimzovich) variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ng8 6. Be3 b6|C13|French: classical, Frankfurt variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ne4|C13|French: classical, Tartakower variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4|C13|French: Albin-Alekhine-Chatard attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 a6|C13|French: Albin-Alekhine-Chatard attack, Maroczy variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 c5|C13|French: Albin-Alekhine-Chatard attack, Breyer variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 f6|C13|French: Albin-Alekhine-Chatard attack, Teichmann variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 O-O|C13|French: Albin-Alekhine-Chatard attack, Spielmann variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7|C14|French: classical variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Bd3|C14|French: classical, Tarrasch variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qd2|C14|French: classical, Rubinstein variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Nb5|C14|French: classical, Alapin variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qg4|C14|French: classical, Pollock variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4|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 O-O 8. Nf3 c5 9. Qd2 Nc6 10. O-O-O c4|C14|French: classical, Stahlberg variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4|C15|French: Winawer (Nimzovich) variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd3 c5 5. exd5 Qxd5 6. Bd2|C15|French: Winawer, Kondratiyev variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2|C15|French: Winawer, fingerslip variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2|C15|French: Winawer, Alekhine (Maroczy) gambit 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Be7 6. Nxe4 Nf6 7. N2g3 O-O 8. Be2 Nc6|C15|French: Winawer, Alekhine gambit, Alatortsev variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Bxc3+|C15|French: Winawer, Alekhine gambit 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Bxc3+ 6. Nxc3 Nc6|C15|French: Winawer, Alekhine gambit, Kan variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5|C16|French: Winawer, advance variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7|C16|French: Winawer, Petrosian variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5|C17|French: Winawer, advance variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2|C17|French: Winawer, advance, Bogolyubov variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Qg4|C17|French: Winawer, advance, Russian variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3|C17|French: Winawer, advance, 5.a3 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 cxd4 6. axb4 dxc3 7. Nf3|C17|French: Winawer, advance, Rauzer variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3|C18|French: Winawer, advance variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7|C18|French: Winawer, classical variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7|C19|French: Winawer, advance, 6...Ne7 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. a4|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. Nf3|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. Qg4|C19|French: Winawer, advance, poisoned pawn 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, advance, 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. Ne2|C19|French: Winawer, advance, poisoned pawn, Konstantinopolsky variation 1. e4 e5|C20|King's pawn game 1. e4 e5 2. d3|C20|KP: Indian opening 1. e4 e5 2. a3|C20|KP: Mengarini's opening 1. e4 e5 2. f3|C20|KP: King's head opening 1. e4 e5 2. Qh5|C20|KP: Patzer opening 1. e4 e5 2. Qf3|C20|KP: Napoleon's opening 1. e4 e5 2. c3|C20|KP: Lopez opening 1. e4 e5 2. Ne2|C20|Alapin's opening 1. e4 e5 2. d4 exd4|C21|Centre game 1. e4 e5 2. d4 exd4 3. Nf3 c5 4. Bc4 b5|C21|Centre game, Kieseritsky variation 1. e4 e5 2. d4 exd4 3. f4|C21|Halasz gambit 1. e4 e5 2. d4 exd4 3. c3|C21|Danish gambit 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Qe7|C21|Danish gambit: Collijn defence 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 d5|C21|Danish gambit: Schlechter defence 1. e4 e5 2. d4 exd4 3. c3 d5|C21|Danish gambit: Soerensen defence 1. e4 e5 2. d4 exd4 3. Qxd4|C21|Centre game 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6|C22|Centre game 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3|C22|Centre game: Paulsen attack 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Bb4+ 5. c3 Be7|C22|Centre game: Charousek variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 f5|C22|Centre game: l'Hermet variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6|C22|Centre game: Berger variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 5. Nc3 Bb4 6. Bd2 O-O 7. O-O-O Re8 8. Bc4 d6 9. Nh3|C22|Centre game: Kupreichik variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qc4|C22|Centre game: Hall variation 1. e4 e5 2. Bc4|C23|Bishop's opening 1. e4 e5 2. Bc4 c6|C23|Bishop's opening: Philidor counter-attack 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: Lisitsyn variation 1. e4 e5 2. Bc4 f5|C23|Bishop's opening: Calabrese counter-gambit 1. e4 e5 2. Bc4 f5 3. d3|C23|Bishop's opening: Calabrese counter-gambit, Jaenisch variation 1. e4 e5 2. Bc4 Bc5|C23|Bishop's opening: Classical variation 1. e4 e5 2. Bc4 Bc5 3. Qe2 Nc6 4. c3 Nf6 5. f4|C23|Bishop's opening: Lopez gambit 1. e4 e5 2. Bc4 Bc5 3. c3|C23|Bishop's opening: Philidor variation 1. e4 e5 2. Bc4 Bc5 3. c3 Nf6 4. d4 exd4 5. e5 d5 6. exf6 dxc4 7. Qh5 O-O|C23|Bishop's opening: Pratt variation 1. e4 e5 2. Bc4 Bc5 3. c3 d5|C23|Bishop's opening: Lewis counter-gambit 1. e4 e5 2. Bc4 Bc5 3. c3 Qg5|C23|Bishop's opening: del Rio variation 1. e4 e5 2. Bc4 Bc5 3. d4|C23|Bishop's opening: Lewis gambit 1. e4 e5 2. Bc4 Bc5 3. b4|C23|Bishop's opening: Wing gambit 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4|C23|Bishop's opening: MacDonnell double gambit 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 exf4 5. Nf3 Be7 6. d4 Bh4+ 7. g3 fxg3 8. O-O gxh2+ 9. Kh1|C23|Bishop's opening: Four pawns' gambit 1. e4 e5 2. Bc4 Nf6|C24|Bishop's opening: Berlin defence 1. e4 e5 2. Bc4 Nf6 3. f4|C24|Bishop's opening: Greco gambit 1. e4 e5 2. Bc4 Nf6 3. d4|C24|Bishop's opening: Ponziani gambit 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3|C24|Bishop's opening: Urusov gambit 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 d5 5. exd5 Bb4+ 6. c3 Qe7+|C24|Bishop's opening: Urusov gambit, Panov variation 1. e4 e5 2. Nc3|C25|Vienna game 1. e4 e5 2. Nc3 Bb4 3. Qg4 Nf6|C25|Vienna: Zhuravlev countergambit 1. e4 e5 2. Nc3 Nc6|C25|Vienna game, Max Lange defence 1. e4 e5 2. Nc3 Nc6 3. g3|C25|Vienna: Paulsen variation 1. e4 e5 2. Nc3 Nc6 3. d4|C25|Vienna: Fyfe gambit 1. e4 e5 2. Nc3 Nc6 3. f4|C25|Vienna gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4|C25|Vienna: Steinitz gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 d5|C25|Vienna: Steinitz gambit, Zukertort defence 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 b6|C25|Vienna: Steinitz gambit, Fraser-Minckwitz variation 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3|C25|Vienna gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5|C25|Vienna: Hamppe-Allgaier gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6|C25|Vienna: Hamppe-Allgaier gambit, Alapin variation 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O|C25|Vienna: Hamppe-Muzio gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O gxf3 7. Qxf3 Ne5 8. Qxf4 Qf6|C25|Vienna: Hamppe-Muzio, Dubois variation 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4|C25|Vienna: Pierce gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4 g4 6. Bc4 gxf3 7. O-O d5 8. exd5 Bg4 9. dxc6|C25|Vienna: Pierce gambit, Rushmere attack 1. e4 e5 2. Nc3 Nf6|C26|Vienna: Falkbeer variation 1. e4 e5 2. Nc3 Nf6 3. a3|C26|Vienna: Mengarini variation 1. e4 e5 2. Nc3 Nf6 3. g3|C26|Vienna: Paulsen-Mieses variation 1. e4 e5 2. Nc3 Nf6 3. Bc4|C26|Vienna game 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4|C27|Vienna game 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 10. Nxa8 b6|C27|Vienna: `Frankenstein-Dracula' variation 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. d4|C27|Vienna: Adams' gambit 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Be7|C27|Vienna game 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Be7 6. Nf3 Nc6 7. Nxe5|C27|Vienna: Alekhine variation 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Nf3|C27|Boden-Kieseritsky gambit 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Nf3 d5|C27|Boden-Kieseritsky gambit: Lichtenhein defence 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6|C28|Vienna game 1. e4 e5 2. Nc3 Nf6 3. f4 d5|C29|Vienna gambit 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Bg4 6. Qe2|C29|Vienna gambit: Kaufmann variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Be7|C29|Vienna gambit: Breyer variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3|C29|Vienna gambit: Paulsen attack 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 f5|C29|Vienna gambit: Bardeleben variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 f5 6. d4|C29|Vienna gambit: Heyde variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3|C29|Vienna gambit 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, Wurzburger trap 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. d3|C29|Vienna gambit, Steinitz variation 1. e4 e5 2. f4|C30|King's gambit 1. e4 e5 2. f4 Qh4+ 3. g3 Qe7|C30|KGD: Keene's defence 1. e4 e5 2. f4 c5|C30|KGD: Mafia defence 1. e4 e5 2. f4 Qf6|C30|KGD: Norwalde variation 1. e4 e5 2. f4 Qf6 3. Nf3 Qxf4 4. Nc3 Bb4 5. Bc4|C30|KGD: Norwalde variation, Buecker gambit 1. e4 e5 2. f4 Bc5|C30|KGD: classical 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, Svenonius variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nd7|C30|KGD: classical, Hanham variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3|C30|KGD: classical, 4.c3 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 Bg4 5. fxe5 dxe5 6. Qa4+|C30|KGD: classical, Marshall attack 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 f5|C30|KGD: classical counter-gambit 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 f5 5. fxe5 dxe5 6. d4 exd4 7. Bc4|C30|KGD: classical, Reti variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. fxe5|C30|KGD: classical, Soldatenkov variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. b4|C30|KGD: classical, Heath variation 1. e4 e5 2. f4 Nf6|C30|KGD: 2...Nf6 1. e4 e5 2. f4 d5|C31|KGD: Falkbeer counter-gambit 1. e4 e5 2. f4 d5 3. Nf3|C31|KGD: Falkbeer, Tartakower variation 1. e4 e5 2. f4 d5 3. Nc3|C31|KGD: Falkbeer, Milner-Barry variation 1. e4 e5 2. f4 d5 3. exd5|C31|KGD: Falkbeer counter-gambit 1. e4 e5 2. f4 d5 3. exd5 c6|C31|KGD: Nimzovich counter-gambit 1. e4 e5 2. f4 d5 3. exd5 e4|C31|KGD: Falkbeer, 3...e4 1. e4 e5 2. f4 d5 3. exd5 e4 4. Nc3 Nf6 5. Qe2|C31|KGD: Falkbeer, Rubinstein variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. Bb5+|C31|KGD: Falkbeer, Nimzovich variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3|C31|KGD: Falkbeer, 4.d3 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Nc3 Bb4 6. Bd2 e3|C31|KGD: Falkbeer, Morphy gambit 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4|C32|KGD: Falkbeer, 5.de 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, Alapin variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf5|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 8. g4 O-O|C32|KGD: Falkbeer, Tarrasch variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Qe2|C32|KGD: Falkbeer, Charousek gambit 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, Charousek variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Nd2|C32|KGD: Falkbeer, Keres variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Qe2|C32|KGD: Falkbeer, Reti variation 1. e4 e5 2. f4 exf4|C33|King's gambit accepted 1. e4 e5 2. f4 exf4 3. Kf2|C33|KGA: Tumbleweed gambit 1. e4 e5 2. f4 exf4 3. b3|C33|KGA: Orsini gambit 1. e4 e5 2. f4 exf4 3. h4|C33|KGA: Pawn's gambit (Stamma gambit) 1. e4 e5 2. f4 exf4 3. Bd3|C33|KGA: Schurig gambit 1. e4 e5 2. f4 exf4 3. Qe2|C33|KGA: Carrera (Basman) gambit 1. e4 e5 2. f4 exf4 3. d4|C33|KGA: Villemson (Steinitz) gambit 1. e4 e5 2. f4 exf4 3. Nc3|C33|KGA: Keres (Mason-Steinitz) gambit 1. e4 e5 2. f4 exf4 3. Qf3|C33|KGA: Breyer gambit 1. e4 e5 2. f4 exf4 3. Be2|C33|KGA: Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit 1. e4 e5 2. f4 exf4 3. Bc4|C33|KGA: bishop's gambit 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 d5 5. Bxd5 g5 6. g3|C33|KGA: bishop's gambit, Chigorin's attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Bc5|C33|KGA: bishop's gambit, Greco variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5|C33|KGA: bishop's gambit, classical defence 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, Grimm attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. d4 Ne7|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 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, McDonnell attack 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, Fraser variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Qf3|C33|KGA: bishop's gambit, classical defence, Cozio attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Nc6|C33|KGA: bishop's gambit, Boden defence 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, Bryan counter-gambit 1. e4 e5 2. f4 exf4 3. Bc4 Ne7|C33|KGA: bishop's gambit, Steinitz defence 1. e4 e5 2. f4 exf4 3. Bc4 Nc6|C33|KGA: bishop's gambit, Maurian defence 1. e4 e5 2. f4 exf4 3. Bc4 c6|C33|KGA: bishop's gambit, Ruy Lopez defence 1. e4 e5 2. f4 exf4 3. Bc4 f5|C33|KGA: bishop's gambit, Lopez-Gianutio counter-gambit 1. e4 e5 2. f4 exf4 3. Bc4 f5 4. Qe2 Qh4+ 5. Kd1 fxe4 6. Nc3 Kd8|C33|KGA: Lopez-Gianutio counter-gambit, Hein variation 1. e4 e5 2. f4 exf4 3. Bc4 d5|C33|KGA: bishop's gambit, Bledow variation 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 Qh4+ 5. Kf1 g5 6. g3|C33|KGA: bishop's gambit, Gifford variation 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 Qh4+ 5. Kf1 Bd6|C33|KGA: bishop's gambit, Boren-Svenonius variation 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 c6|C33|KGA: bishop's gambit, Anderssen variation 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 Nf6|C33|KGA: bishop's gambit, Morphy variation 1. e4 e5 2. f4 exf4 3. Bc4 Nf6|C33|KGA: bishop's gambit, Cozio (Morphy) defence 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3|C33|KGA: bishop's gambit, Bogolyubov variation 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 Bb4 5. e5|C33|KGA: bishop's gambit, Paulsen attack 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 c6|C33|KGA: bishop's gambit, Jaenisch variation 1. e4 e5 2. f4 exf4 3. Nf3|C34|King's knight's gambit 1. e4 e5 2. f4 exf4 3. Nf3 Ne7|C34|KGA: Bonsch-Osmolovsky variation 1. e4 e5 2. f4 exf4 3. Nf3 f5|C34|KGA: Gianutio counter-gambit 1. e4 e5 2. f4 exf4 3. Nf3 d6|C34|KGA: Fischer defence 1. e4 e5 2. f4 exf4 3. Nf3 h6|C34|KGA: Becker defence 1. e4 e5 2. f4 exf4 3. Nf3 Nf6|C34|KGA: Schallop defence 1. e4 e5 2. f4 exf4 3. Nf3 Be7|C35|KGA: Cunningham defence 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3|C35|KGA: Cunningham, Bertin gambit 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3 fxg3 6. O-O gxh2+ 7. Kh1|C35|KGA: Cunningham, three pawns gambit 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Nf6|C35|KGA: Cunningham, Euwe defence 1. e4 e5 2. f4 exf4 3. Nf3 d5|C36|KGA: Abbazia defence (classical defence, modern defence[!]) 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6|C36|KGA: Abbazia defence, modern variation 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Bb5+ c6 6. dxc6 bxc6 7. Bc4 Nd5|C36|KGA: Abbazia defence, Botvinnik variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Nc3|C37|KGA: Quaade gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4|C37|KGA: Rosentreter gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Ne5|C37|KGA: Soerensen gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4|C37|KGA: King's knight's gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Nc6|C37|KGA: Blachly gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Bxf7+|C37|KGA: Lolli gambit (wild Muzio gambit) 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Bxf7+ Kxf7 6. O-O gxf3 7. Qxf3 Qf6 8. d4 Qxd4+ 9. Be3 Qf6 10. Nc3|C37|KGA: Lolli gambit, Young variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4|C37|KGA: Ghulam Kassim gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Nc3|C37|KGA: MacDonnell gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5|C37|KGA: Salvio gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 f3|C37|KGA: Silberschmidt gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 d6|C37|KGA: Salvio gambit, Anderssen counter-attack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 f3|C37|KGA: Cochrane gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nc6|C37|KGA: Herzfeld gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O|C37|KGA: Muzio gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. e5 Qxe5 8. d3 Bh6 9. Nc3 Ne7 10. Bd2 Nbc6 11. Rae1|C37|KGA: Muzio gambit, Paulsen variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. e5 Qxe5 8. Bxf7+|C37|KGA: double Muzio gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qe7|C37|KGA: Muzio gambit, From defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Nc6|C37|KGA: Muzio gambit, Holloway defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O Qe7|C37|KGA: Muzio gambit, Kling and Horwitz counter-attack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O d5|C37|KGA: Muzio gambit, Brentano defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7|C38|King's knight's gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. O-O|C38|KGA: Hanstein gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h4|C38|KGA: Philidor 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: Greco gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h4 h6 6. d4 d6 7. Qd3|C38|KGA: Philidor gambit, Schultz variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4|C39|King's knight's gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5|C39|KGA: Allgaier gambit 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, Horny defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. d4|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 d5 8. Bxf4 dxe4 9. Bc4+ Kg7 10. Be5+|C39|KGA: Allgaier, Cook variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Nc3|C39|KGA: Allgaier, Blackburne gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Bc4+|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+ d5 8. Bxd5+ Kg7 9. d4|C39|KGA: Allgaier, Urusov attack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 Nf6|C39|KGA: Allgaier, Schlechter defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Bg7|C39|KGA: Kieseritsky, Paulsen defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5|C39|KGA: Kieseritsky, long whip (Stockwhip, classical) defence 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, long whip defence, Jaenisch variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5|C39|KGA: Kieseritsky, Brentano (Campbell) defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. exd5 Qxd5 8. Nc3 Bb4 9. Kf2|C39|KGA: Kieseritsky, Brentano defence, Kaplanek variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. Bxf4|C39|KGA: Kieseritsky, Brentano defence 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, Brentano defence, Caro variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Qe7|C39|KGA: Kieseritsky, Salvio (Rosenthal) defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Qe7 6. d4 f5 7. Bc4|C39|KGA: Kieseritsky, Salvio defence, Cozio variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Be7|C39|KGA: Kieseritsky, Polerio defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nc6|C39|KGA: Kieseritsky, Neumann defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d6|C39|KGA: Kieseritsky, Kolisch defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6|C39|KGA: Kieseritsky, Berlin defence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Nxg4 d5|C39|KGA: Kieseritsky, Berlin defence, Riviere variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4|C39|KGA: Kieseritsky, Berlin defence, 6.Bc4 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. O-O|C39|KGA: Kieseritsky, Rice gambit 1. e4 e5 2. Nf3|C40|King's knight opening 1. e4 e5 2. Nf3 Qe7|C40|Gunderam defence 1. e4 e5 2. Nf3 Qf6|C40|Greco defence 1. e4 e5 2. Nf3 f6|C40|Damiano's defence 1. e4 e5 2. Nf3 d5|C40|QP counter-gambit (elephant gambit) 1. e4 e5 2. Nf3 d5 3. exd5 Bd6|C40|QP counter-gambit: Maroczy gambit 1. e4 e5 2. Nf3 f5|C40|Latvian counter-gambit 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Ne3|C40|Latvian: Nimzovich variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Nc6|C40|Latvian: Fraser defence 1. e4 e5 2. Nf3 f5 3. Bc4|C40|Latvian gambit, 3.Bc4 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. Nf7 Qxg2 6. Rf1 d5 7. Nxh8 Nf6|C40|Latvian: Behting variation 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 d5|C40|Latvian: Polerio variation 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Nf6|C40|Latvian: corkscrew counter-gambit 1. e4 e5 2. Nf3 d6|C41|Philidor's defence 1. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. c3|C41|Philidor: Steinitz variation 1. e4 e5 2. Nf3 d6 3. Bc4 f5|C41|Philidor: Lopez counter-gambit 1. e4 e5 2. Nf3 d6 3. Bc4 f5 4. d4 exd4 5. Ng5 Nh6 6. Nxh7|C41|Philidor: Lopez counter-gambit, Jaenisch variation 1. e4 e5 2. Nf3 d6 3. d4|C41|Philidor's defence 1. e4 e5 2. Nf3 d6 3. d4 f5|C41|Philidor: Philidor counter-gambit 1. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6|C41|Philidor: Philidor counter-gambit, del Rio attack 1. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6 Bc5 7. Nc3|C41|Philidor: Philidor counter-gambit, Berger variation 1. e4 e5 2. Nf3 d6 3. d4 f5 4. Nc3|C41|Philidor: Philidor counter-gambit, Zukertort variation 1. e4 e5 2. Nf3 d6 3. d4 exd4|C41|Philidor: exchange variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Bd7|C41|Philidor: Boden variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4|C41|Philidor: exchange variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 d5 5. exd5|C41|Philidor: Paulsen attack 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6|C41|Philidor: exchange variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 O-O 7. O-O c5 8. Nf3 Nc6 9. Bg5 Be6 10. Re1|C41|Philidor: Berger variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 g6|C41|Philidor: Larsen variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6|C41|Philidor: Nimzovich (Jaenisch) variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7|C41|Philidor: Improved Hanham variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. Qe2 c6 8. a4 exd4|C41|Philidor: Nimzovich, Sozin variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+|C41|Philidor: Nimzovich, Larobok variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5|C41|Philidor: Nimzovich variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Nbd2|C41|Philidor: Nimzovich, Sokolsky variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Qd5|C41|Philidor: Nimzovich, Rellstab variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Ng5|C41|Philidor: Nimzovich, Locock variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Bc4|C41|Philidor: Nimzovich, Klein variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7|C41|Philidor: Hanham variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. O-O|C41|Philidor: Hanham, Krause variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. O-O Be7 6. dxe5|C41|Philidor: Hanham, Steiner variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Ng5|C41|Philidor: Hanham, Kmoch variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Ng5 Nh6 6. f4 Be7 7. O-O O-O 8. c3 d5|C41|Philidor: Hanham, Berger variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Nc3|C41|Philidor: Hanham, Schlechter variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. c3|C41|Philidor: Hanham, Delmar variation 1. e4 e5 2. Nf3 Nf6|C42|Petrov's defence 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3|C42|Petrov: French attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c4|C42|Petrov: Kaufmann attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3|C42|Petrov: Nimzovich attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2|C42|Petrov: Cozio (Lasker) attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4|C42|Petrov: classical attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1|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. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. Nbd2|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. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. c4|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. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. c4 Bh4|C42|Petrov: classical attack, Maroczy variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. c4|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. O-O O-O|C42|Petrov: classical attack, Mason variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6|C42|Petrov: classical attack, Marshall variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4|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. O-O O-O 8. c4 Bg4 9. cxd5 f5 10. Re1 Bxh2+|C42|Petrov: classical attack, Marshall trap 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Nf6|C42|Petrov: classical attack, close variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7|C42|Petrov: Cochrane gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nc4|C42|Petrov: Paulsen attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4|C42|Petrov: Damiano variation 1. e4 e5 2. Nf3 Nf6 3. Nc3|C42|Petrov three knights game 1. e4 e5 2. Nf3 Nf6 3. Bc4|C42|Petrov: Italian variation 1. e4 e5 2. Nf3 Nf6 3. d4|C43|Petrov: modern (Steinitz) attack 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qxd4|C43|Petrov: modern attack, main line 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qe2|C43|Petrov: modern attack, Steinitz variation 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qe2 Nc5 6. Nxd4 Nc6|C43|Petrov: modern attack, Bardeleben variation 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. Bc4|C43|Petrov: Urusov gambit 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4|C43|Petrov: modern attack, Symmetrical variation 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Bd6 6. O-O O-O 7. c4 Bxe5|C43|Petrov: modern attack, Trifunovic variation 1. e4 e5 2. Nf3 Nc6|C44|King's pawn game 1. e4 e5 2. Nf3 Nc6 3. Nxe5 Nxe5 4. d4|C44|Irish (Chicago) gambit 1. e4 e5 2. Nf3 Nc6 3. g3|C44|Konstantinopolsky opening 1. e4 e5 2. Nf3 Nc6 3. c4|C44|Dresden opening 1. e4 e5 2. Nf3 Nc6 3. Be2|C44|Inverted Hungarian 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d3 d5 5. Nbd2|C44|Inverted Hanham 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d4|C44|Tayler opening 1. e4 e5 2. Nf3 Nc6 3. c3|C44|Ponziani opening 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Bd7|C44|Ponziani: Caro variation 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Nf6|C44|Ponziani: Leonhardt variation 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 f6|C44|Ponziani: Steinitz variation 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6|C44|Ponziani: Jaenisch counter-attack 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 Nxe4 5. d5 Bc5|C44|Ponziani: Fraser defence 1. e4 e5 2. Nf3 Nc6 3. c3 Nge7|C44|Ponziani: Reti variation 1. e4 e5 2. Nf3 Nc6 3. c3 Be7|C44|Ponziani: Romanishin variation 1. e4 e5 2. Nf3 Nc6 3. c3 f5|C44|Ponziani counter-gambit 1. e4 e5 2. Nf3 Nc6 3. c3 f5 4. d4 d6 5. d5|C44|Ponziani counter-gambit, Schmidt attack 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|Ponziani counter-gambit, Cordel variation 1. e4 e5 2. Nf3 Nc6 3. d4|C44|Scotch opening 1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4|C44|Scotch: Lolli variation 1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 4. Nxe5 Ne6 5. Bc4 c6 6. O-O Nf6 7. Nxf7|C44|Scotch: Cochrane variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5|C44|Scotch: Relfsson gambit ('MacLopez') 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3|C44|Scotch: Goering gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 d6 6. Bc4 Bg4 7. O-O Ne5 8. Nxe5 Bxd1 9. Bxf7+ Ke7 10. Nd5#|C44|Scotch: Sea-cadet mate 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 Bb4|C44|Scotch: Goering gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 Bb4 6. Bc4 Nf6|C44|Scotch: Goering gambit, Bardeleben variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4|C44|Scotch gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O d6 6. c3 Bg4|C44|Scotch gambit: Anderssen (Paulsen, Suhle) counter-attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5|C44|Scotch gambit 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: Cochrane-Shumov defence 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Qh5|C44|Scotch gambit: Vitzhum attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+|C44|Scotch gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. O-O cxb2 7. Bxb2 Nf6 8. Ng5 O-O 9. e5 Nxe5|C44|Scotch gambit: Hanneken variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. bxc3|C44|Scotch gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. bxc3 Ba5 7. e5|C44|Scotch gambit: Cochrane variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7|C44|Scotch gambit: Benima defence 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6|C44|Scotch gambit: Dubois-Reti defence 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4|C45|Scotch game 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 d6 6. Bd3|C45|Scotch: Ghulam Kassim variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4|C45|Scotch: Pulling counter-attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5|C45|Scotch: Horwitz attack 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: Berger variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2|C45|Scotch game 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 Qxe4+ 7. Be2 Kd8 8. O-O Bxd2 9. Nxd2 Qg6|C45|Scotch: Rosenthal variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nf3|C45|Scotch: Fraser attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nc3|C45|Scotch: Steinitz variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6|C45|Scotch: Schmidt variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5|C45|Scotch: Mieses variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nd2|C45|Scotch: Tartakower variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5|C45|Scotch game 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Qd2|C45|Scotch: Blackburne attack 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 O-O 10. Nxc7 Rb8 11. Nxd5 Nxd5 12. exd5 Nb4|C45|Scotch: Gottschall variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5|C45|Scotch: Paulsen attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5 Nd8|C45|Scotch: Paulsen, Gunsberg defence 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Nc2|C45|Scotch: Meitner variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. Nb5|C45|Scotch: Blumenfeld attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3|C45|Scotch: Potter variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb4+|C45|Scotch: Romanishin variation 1. e4 e5 2. Nf3 Nc6 3. Nc3|C46|Three knights game 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. Nd5 Nf6|C46|Three knights: Schlechter variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 f5|C46|Three knights: Winawer defence (Gothic defence) 1. e4 e5 2. Nf3 Nc6 3. Nc3 g6|C46|Three knights: Steinitz variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 4. d4 exd4 5. Nd5|C46|Three knights: Steinitz, Rosenthal variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6|C46|Four knights game 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5|C46|Four knights: Schultze-Mueller gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4|C46|Four knights: Italian variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3|C46|Four knights: Gunsberg variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4|C47|Four knights: Scotch variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5|C47|Four knights: Scotch, Krause variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4|C47|Four knights: Scotch, 4...exd4 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5|C47|Four knights: Belgrade gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5|C48|Four knights: Spanish variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6|C48|Four knights: Ranken variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 dxc6 6. Nxe5 Nxe4 7. Nxe4 Qd4 8. O-O Qxe5 9. Re1 Be6 10. d4 Qd5|C48|Four knights: Spielmann variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5|C48|Four knights: Spanish, classical defence 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nxe5 7. d4 Bd6 8. f4 Nc6 9. e5 Bb4|C48|Four knights: Bardeleben variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nd4|C48|Four knights: Marshall variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4|C48|Four knights: Rubinstein counter-gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxe5 Qe7 6. f4|C48|Four knights: Rubinstein counter-gambit, Bogolyubov variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Be2|C48|Four knights: Rubinstein counter-gambit, 5.Be2 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Be2 Nxf3+ 6. Bxf3 Bc5 7. O-O O-O 8. d3 d6 9. Na4 Bb6|C48|Four knights: Rubinstein counter-gambit Maroczy variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxd4|C48|Four knights: Rubinstein counter-gambit, exchange variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. O-O|C48|Four knights: Rubinstein counter-gambit, Henneberger variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4|C49|Four knights: double Ruy Lopez 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. Nd5 Nxd5 7. exd5 e4|C49|Four knights: Gunsberg counter-attack 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3|C49|Four knights: double Ruy Lopez 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Qe7 7. Ne2 d5|C49|Four knights: Alatortsev variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3|C49|Four knights 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1|C49|Four knights: Janowski variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d5|C49|Four knights: Svenonius variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6|C49|Four knights: symmetrical variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7|C49|Four knights: symmetrical, Metger unpin 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4|C49|Four knights: symmetrical, Capablanca variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7|C49|Four knights: symmetrical, Pillsbury variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7 8. Nh4 c6 9. Bc4 d5 10. Bb3 Qd6|C49|Four knights: symmetrical, Blake variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Be6|C49|Four knights: symmetrical, Tarrasch variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Ne2|C49|Four knights: symmetrical, Maroczy system 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. Bxc6|C49|Four knights: Nimzovich (Paulsen) variation 1. e4 e5 2. Nf3 Nc6 3. Bc4|C50|King's pawn game 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nd4 4. Nxe5 Qg5 5. Nxf7 Qxg2 6. Rf1 Qxe4+ 7. Be2 Nf3#|C50|Blackburne shilling gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 f5|C50|Rousseau gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7|C50|Hungarian defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. c3 Nf6 6. e5 Ne4|C50|Hungarian defence: Tartakower variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5|C50|Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6|C50|Giuoco Piano: four knights variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Bxf7+|C50|Giuoco Piano: Jerome gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3|C50|Giuoco Pianissimo 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 f5 5. Ng5 f4|C50|Giuoco Pianissimo: Dubois variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6|C50|Giuoco Pianissimo 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3|C50|Giuoco Pianissimo: Italian four knights variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 d6 6. Bg5|C50|Giuoco Pianissimo: Canal variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4|C51|Evans gambit declined 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Nh6|C51|Evans gambit declined, Lange variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Nh6 7. d4 d6 8. Bxh6 dxe5 9. Bxg7 Rg8 10. Bxf7+ Kxf7 11. Bxe5 Qg5 12. Nd2|C51|Evans gambit declined, Pavlov variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Qg5|C51|Evans gambit declined, Hirschbach variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Qg5 7. Bxf7+ Ke7 8. Qh5|C51|Evans gambit declined, Vasquez variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Qg5 7. Qf3 Qxe5 8. Qxf7+ Kd8 9. Bb2|C51|Evans gambit declined, Hicken variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. a4|C51|Evans gambit declined, 5.a4 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. a4 a6 6. Nc3|C51|Evans gambit declined, Showalter variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. Bb2|C51|Evans gambit declined, Cordel variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 d5|C51|Evans counter-gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4|C51|Evans gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6|C51|Evans gambit: normal variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. d5 Na5 10. Bb2|C51|Evans gambit: Ulvestad variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. d5 Na5 10. Bb2 Ne7|C51|Evans gambit: Paulsen variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3|C51|Evans gambit: Morphy attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Na5 10. Bg5|C51|Evans gambit: Goering attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Na5 10. Bg5 f6 11. Be3|C51|Evans gambit: Steinitz variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4|C51|Evans gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 10. Qa4|C51|Evans gambit: Fraser attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 10. Qa4 Bd7 11. Qb3 Na5 12. Bxf7+ Kf8 13. Qc2|C51|Evans gambit: Fraser-Mortimer attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bd6|C51|Evans gambit: Stone-Ware variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bf8|C51|Evans gambit: Mayet defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7|C51|Evans gambit: 5...Be7 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 6. d4 Na5|C51|Evans gambit: Cordel variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5|C52|Evans gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3|C52|Evans gambit: compromised defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3 8. Qb3 Qf6 9. e5 Qg6 10. Nxc3 Nge7 11. Ba3|C52|Evans gambit: compromised defence, Paulsen variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3 8. Qb3 Qf6 9. e5 Qg6 10. Nxc3 Nge7 11. Rd1|C52|Evans gambit: compromised defence, Potter variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 b5|C52|Evans gambit: Leonhardt variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6|C52|Evans gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Qb3|C52|Evans gambit: Tartakower attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Qb3 Qd7 8. dxe5 dxe5 9. O-O Bb6 10. Ba3 Na5 11. Nxe5|C52|Evans gambit: Levenfish variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Bg5|C52|Evans gambit: Sokolsky variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O|C52|Evans gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O Nf6 7. d4 O-O 8. Nxe5|C52|Evans gambit: Richardson attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6|C52|Evans gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 exd4 8. Qb3|C52|Evans gambit: Waller attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bb6|C52|Evans gambit: Lasker defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bd7|C52|Evans gambit: Sanders-Alapin variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bg4|C52|Evans gambit: Alapin-Steinitz variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3|C53|Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. d4 exd4 6. cxd4 Bb6|C53|Giuoco Piano: LaBourdonnais variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7|C53|Giuoco Piano: close variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6|C53|Giuoco Piano: centre-holding variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. O-O Nf6 7. a4 a6 8. Re1 d6 9. h3|C53|Giuoco Piano: Tarrasch variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. Bg5|C53|Giuoco Piano: Mestel variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. d5 Nb8 7. d6|C53|Giuoco Piano: Eisinger variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6|C53|Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. b4|C53|Giuoco Piano: Bird's attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4|C53|Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4 7. Bd5 Nxf2 8. Kxf2 dxc3+ 9. Kg3|C53|Giuoco Piano: Ghulam Kassim variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5|C53|Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb4+|C53|Giuoco Piano: Anderssen variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4|C54|Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. Bxb4 Nxb4 9. Bxf7+ Kxf7 10. Qb3+ d5 11. Ne5+ Kf6 12. f3|C54|Giuoco Piano: Krause variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Kf1|C54|Giuoco Piano: Cracow variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3|C54|Giuoco Piano: Greco's attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Nxc3|C54|Giuoco Piano: Greco variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Nxc3 9. bxc3 Bxc3 10. Qb3 d5|C54|Giuoco Piano: Bernstein variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Nxc3 9. bxc3 Bxc3 10. Ba3|C54|Giuoco Piano: Aitken variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3|C54|Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. bxc3 d5 10. Ba3|C54|Giuoco Piano: Steinitz variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5|C54|Giuoco Piano: Moeller (Therkatz) attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 d6 12. Bg5 Bxg5 13. Nxg5 O-O 14. Nxh7|C54|Giuoco Piano: Therkatz-Herzog variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 d6 12. g4|C54|Giuoco Piano: Moeller, bayonet attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6|C55|Two knights defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 h6 8. Bh4 g5 9. f4|C55|Giuoco piano: Rosentreter variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 d6|C55|Giuoco piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 d6 8. f4 Qe7 9. fxe5 dxe5 10. Nc3|C55|Giuoco piano: Holzhausen attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3|C55|Two knights defence (Modern bishop's opening) 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4|C55|Two knights defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bc5 8. Nxc6 Bxf2+ 9. Kf1 Qh4|C55|Two knights defence, Keidanz variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. Ng5|C55|Two knights defence, Perreux variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O|C55|Two knights defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5|C55|two knights: Max Lange attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 10. Nc3 Qf5 11. g4 Qg6 12. Nce4 Bb6 13. f4 O-O-O|C55|two knights: Max Lange attack, Berger variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 10. Nc3 Qf5 11. Nce4|C55|two knights: Max Lange attack, Marshall variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 10. Nc3 Qf5 11. Nce4 Bf8|C55|two knights: Max Lange attack, Rubinstein variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 g6|C55|two knights: Max Lange attack, Loman defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. fxg7|C55|two knights: Max Lange attack, Schlechter variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 Ng4|C55|two knights: Max Lange attack, Steinitz variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 Ng4 7. c3|C55|two knights: Max Lange attack, Krause variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4|C56|Two knights defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bg5 h6 11. Bh4 g5 12. Nf6+ Ke7 13. b4|C56|two knights defence: Yurdansky attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Re1 d5 7. Nc3|C56|two knights defence: Canal variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5|C57|Two knights defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5|C57|two knights defence: Wilkes Barre (Traxler) variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5|C57|two knights defence: Ulvestad variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4|C57|two knights defence: Fritz variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. Ne4|C57|two knights defence: Fritz, Gruber variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. d4|C57|two knights defence: Lolli attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. d4 Bb4+|C57|two knights defence: Pincus variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7|C57|two knights defence: Fegatello attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6 8. Nc3 Nb4 9. Qe4 c6 10. a3 Na6 11. d4 Nc7|C57|two knights defence: Fegatello attack, Leonhardt variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6 8. Nc3 Ne7|C57|two knights defence: Fegatello attack, Polerio defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5|C58|two knights defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3|C58|two knights defence: Kieseritsky variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 h6 7. Nf3 e4 8. Qe2 Nxc4 9. dxc4 Bc5 10. Nfd2|C58|two knights defence: Yankovich variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 h6 7. Nf3 e4 8. Qe2 Nxc4 9. dxc4 Be7|C58|two knights defence: Maroczy variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+|C58|Two knights defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3|C58|two knights defence: Bogolyubov variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Qc7 9. Bd3|C58|two knights defence: Paoli variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Rb8|C58|two knights defence: Colman variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 cxb5|C58|two knights defence: Blackburne variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2|C58|Two knights defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6|C59|Two knights defence 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Bd6 11. d4 Qc7 12. Bd2|C59|two knights defence: Knorre variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Qc7|C59|two knights defence: Goering variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nh3|C59|two knights defence: Steinitz variation 1. e4 e5 2. Nf3 Nc6 3. Bb5|C60|Ruy Lopez (Spanish opening) 1. e4 e5 2. Nf3 Nc6 3. Bb5 f6|C60|Ruy Lopez: Nuernberg variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Na5|C60|Ruy Lopez: Pollock defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 Be7|C60|Ruy Lopez: Lucena defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 Qe7|C60|Ruy Lopez: Vinogradov variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 g5|C60|Ruy Lopez: Brentano defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6|C60|Ruy Lopez: fianchetto (Smyslov/Barnes) defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7|C60|Ruy Lopez: Cozio defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. Nc3 g6|C60|Ruy Lopez: Cozio defence, Paulsen variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4|C61|Ruy Lopez: Bird's defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. O-O Ne7|C61|Ruy Lopez: Bird's defence, Paulsen variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6|C62|Ruy Lopez: old Steinitz defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. Nc3 Nf6 6. Bxc6|C62|Ruy Lopez: old Steinitz defence, Nimzovich attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. c4|C62|Ruy Lopez: old Steinitz defence, semi-Duras variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5|C63|Ruy Lopez: Schliemann defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3|C63|Ruy Lopez: Schliemann defence, Berger variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5|C64|Ruy Lopez: classical (Cordel) defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nd4 5. b4|C64|Ruy Lopez: classical defence, Zaitsev variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3|C64|Ruy Lopez: classical defence, 4.c3 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. O-O O-O 6. d4 Bb6|C64|Ruy Lopez: classical defence, Benelux variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Bb6|C64|Ruy Lopez: classical defence, Charousek variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Qe7|C64|Ruy Lopez: classical defence, Boden variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 f5|C64|Ruy Lopez: Cordel gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6|C65|Ruy Lopez: Berlin defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d4 exd4 5. O-O|C65|Ruy Lopez: Berlin defence, Nyholm attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7|C65|Ruy Lopez: Berlin defence, Mortimer variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7 5. Nxe5 c6|C65|Ruy Lopez: Berlin defence, Mortimer trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. Bxc6+|C65|Ruy Lopez: Berlin defence, Anderssen variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c4|C65|Ruy Lopez: Berlin defence, Duras variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Be3|C65|Ruy Lopez: Berlin defence, Kaufmann variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O|C65|Ruy Lopez: Berlin defence, 4.O-O 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5|C65|Ruy Lopez: Berlin defence, Beverwijk variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6|C66|Ruy Lopez: Berlin defence, 4.O-O, d6 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7|C66|Ruy Lopez: Berlin defence, hedgehog variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Re1 O-O|C66|Ruy Lopez: Berlin defence, Tarrasch trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Bg5|C66|Ruy Lopez: closed Berlin defence, Bernstein variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Bxc6|C66|Ruy Lopez: closed Berlin defence, Showalter variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 exd4|C66|Ruy Lopez: closed Berlin defence, Wolf variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Nd7|C66|Ruy Lopez: closed Berlin defence, Chigorin variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4|C67|Ruy Lopez: Berlin defence, open variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. dxe5|C67|Ruy Lopez: open Berlin defence, l'Hermet variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Ba4|C67|Ruy Lopez: open Berlin defence, Showalter variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7|C67|Ruy Lopez: open Berlin defence, 5...Be7 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nc3 O-O 10. Re1 Nc5 11. Nd4 Ne6 12. Be3 Nxd4 13. Bxd4 c5|C67|Ruy Lopez: Berlin defence, Rio de Janeiro variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. c4|C67|Ruy Lopez: Berlin defence, Zukertort variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. b3|C67|Ruy Lopez: Berlin defence, Pillsbury variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nd4|C67|Ruy Lopez: Berlin defence, Winawer attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nf5|C67|Ruy Lopez: Berlin defence, Cordel variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 d5|C67|Ruy Lopez: Berlin defence, Trifunovic variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. dxe5|C67|Ruy Lopez: Berlin defence, Minckwitz variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 a6|C67|Ruy Lopez: Berlin defence, Rosenthal variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6|C68|Ruy Lopez: exchange variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd7|C68|Ruy Lopez: exchange, Alekhine variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3|C68|Ruy Lopez: exchange, Keres variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 6. d3|C68|Ruy Lopez: exchange, Romanovsky variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O|C69|Ruy Lopez: exchange variation, 5.O-O 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bg4 6. h3 h5|C69|Ruy Lopez: exchange variation, Alapin gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6|C69|Ruy Lopez: exchange, Gligoric variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Qd6|C69|Ruy Lopez: exchange, Bronstein variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4|C70|Ruy Lopez 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6|C70|Ruy Lopez: fianchetto defence deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nge7|C70|Ruy Lopez: Cozio defence deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nd4|C70|Ruy Lopez: Bird's defence deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4|C70|Ruy Lopez: Alapin's defence deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5|C70|Ruy Lopez: Classical defence deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5|C70|Ruy Lopez: Caro variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Bc5|C70|Ruy Lopez: Graz variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Na5|C70|Ruy Lopez: Taimanov (chase/wing/accelerated counterthrust) variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 f5|C70|Ruy Lopez: Schliemann defence deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6|C71|Ruy Lopez: modern Steinitz defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. d4 b5 6. Bb3 Nxd4 7. Nxd4 exd4 8. Qxd4 c5|C71|Ruy Lopez: Noah's ark trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Nc3|C71|Ruy Lopez: modern Steinitz defence, Three knights variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c4|C71|Ruy Lopez: modern Steinitz defence, Duras (Keres) variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O|C72|Ruy Lopez: modern Steinitz defence, 5.O-O 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4|C73|Ruy Lopez: modern Steinitz defence, Richter variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 f6|C73|Ruy Lopez: modern Steinitz defence, Alapin variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3|C74|Ruy Lopez: modern Steinitz defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5|C74|Ruy Lopez: modern Steinitz defence, siesta variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. O-O|C74|Ruy Lopez: Siesta, Kopayev variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7|C75|Ruy Lopez: modern Steinitz defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7|C75|Ruy Lopez: modern Steinitz defence, Rubinstein variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6|C76|Ruy Lopez: modern Steinitz defence, fianchetto (Bronstein) variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6|C77|Ruy Lopez: Morphy defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3|C77|Ruy Lopez: four knights (Tarrasch) variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Bxc6|C77|Ruy Lopez: Treybal (Bayreuth) variation (exchange var. deferred) 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2|C77|Ruy Lopez: Wormald (Alapin) attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. d4 d6 8. c3 Bg4|C77|Ruy Lopez: Wormald attack, Gruenfeld variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3|C77|Ruy Lopez: Anderssen variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c4|C77|Ruy Lopez: Morphy defence, Duras variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O|C78|Ruy Lopez: 5.O-O 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. a4|C78|Ruy Lopez: Wing attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 d6|C78|Ruy Lopez: ...b5 & ...d6 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 d6 7. Ng5 d5 8. exd5 Nd4 9. Re1 Bc5 10. Rxe5+ Kf8|C78|Ruy Lopez: Rabinovich variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bb7|C78|Ruy Lopez: Archangelsk (counterthrust) variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5|C78|Ruy Lopez: Moeller defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6|C79|Ruy Lopez: Steinitz defence deferred (Russian defence) 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Bxc6+ bxc6 7. d4 Bg4|C79|Ruy Lopez: Steinitz defence deferred, Lipnitsky variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Bxc6+ bxc6 7. d4 Nxe4|C79|Ruy Lopez: Steinitz defence deferred, Rubinstein variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Bxc6+ bxc6 7. d4 Nxe4 8. Re1 f5 9. dxe5 d5 10. Nc3|C79|Ruy Lopez: Steinitz defence deferred, Boleslavsky variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4|C80|Ruy Lopez: open (Tarrasch) defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Qe2|C80|Ruy Lopez: open, Tartakower variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Nc3|C80|Ruy Lopez: open, Knorre variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4|C80|Ruy Lopez: open, 6.d4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4|C80|Ruy Lopez: open, Riga variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5|C80|Ruy Lopez: open, 6.d4 b5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Nxe5|C80|Ruy Lopez: open, Friess attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. d5|C80|Ruy Lopez: open, Richter variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3|C80|Ruy Lopez: open, 7.Bb3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. a4 Nxd4|C80|Ruy Lopez: open, Schlechter defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. a4 Nxd4 9. Nxd4 exd4 10. Nc3|C80|Ruy Lopez: open, Berger variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. c4|C80|Ruy Lopez: open, Harksen gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5|C80|Ruy Lopez: open, 8.de 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Ne7|C80|Ruy Lopez: open, Zukertort variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6|C80|Ruy Lopez: open, 8...Be6 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2|C80|Ruy Lopez: open, Bernstein variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Nc5 10. c3 d4 11. Ng5|C80|Ruy Lopez: open, Bernstein variation, Karpov gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2|C81|Ruy Lopez: open, Howell attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 O-O 11. c4 bxc4 12. Bxc4 Qd7|C81|Ruy Lopez: open, Howell attack, Ekstroem variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. c4|C81|Ruy Lopez: open, Howell attack, Adam variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3|C82|Ruy Lopez: open, 9.c3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Nc5|C82|Ruy Lopez: open, Berlin variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5|C82|Ruy Lopez: open, Italian variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2|C82|Ruy Lopez: open, St. Petersburg variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O 11. Bc2 Nxf2|C82|Ruy Lopez: open, Dilworth variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Qd3|C82|Ruy Lopez: open, Motzko attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Qd3 Ne7|C82|Ruy Lopez: open, Motzko attack, Nenarokov variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7|C83|Ruy Lopez: open, classical defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 O-O 11. Qe2|C83|Ruy Lopez: open, Malkin variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Re1|C83|Ruy Lopez: open, 9...Be7, 10.Re1 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Re1 O-O 11. Nd4 Qd7 12. Nxe6 fxe6 13. Rxe4|C83|Ruy Lopez: open, Tarrasch trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Re1 O-O 11. Nd4 Nxe5|C83|Ruy Lopez: open, Breslau variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7|C84|Ruy Lopez: closed defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4|C84|Ruy Lopez: closed, centre attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 exd4 7. e5 Ne4 8. c3|C84|Ruy Lopez: closed, Basque gambit (North Spanish variation) 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6|C85|Ruy Lopez: Exchange variation doubly deferred (DERLD) 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2|C86|Ruy Lopez: Worrall attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O|C86|Ruy Lopez: Worrall attack, sharp line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6|C86|Ruy Lopez: Worrall attack, solid line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 d6|C87|Ruy Lopez: closed, Averbach variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3|C88|Ruy Lopez: closed 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. h3 Nc6 12. d5 Nb8 13. Nbd2 g5|C88|Ruy Lopez: closed, Leonhardt variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. a4|C88|Ruy Lopez: closed, Balla variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. d4|C88|Ruy Lopez: closed, 7...d6, 8.d4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. d4 Nxd4 9. Nxd4 exd4 10. Qxd4 c5|C88|Ruy Lopez: Noah's ark trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 Bb7|C88|Ruy Lopez: Trajkovic counter-attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O|C88|Ruy Lopez: closed, 7...O-O 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4|C88|Ruy Lopez: closed, anti-Marshall 8.a4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3|C88|Ruy Lopez: closed, 8.c3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5|C89|Ruy Lopez: Marshall counter-attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6|C89|Ruy Lopez: Marshall counter-attack, 11...c6 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. Bxd5 cxd5 13. d4 Bd6 14. Re3|C89|Ruy Lopez: Marshall, Kevitz variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4|C89|Ruy Lopez: Marshall, main line, 12.d2d4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3|C89|Ruy Lopez: Marshall, main line, 14...Qh3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 15. Be3 Bg4 16. Qd3 Rae8|C89|Ruy Lopez: Marshall, main line, Spassky variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 e4|C89|Ruy Lopez: Marshall, Herman Steiner variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6|C90|Ruy Lopez: closed (with ...d6) 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. d3|C90|Ruy Lopez: closed, Pilnik variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. Bc2|C90|Ruy Lopez: closed, Lutikov variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. a3|C90|Ruy Lopez: closed, Suetin variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. d4|C91|Ruy Lopez: closed, 9.d4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. d4 Bg4|C91|Ruy Lopez: closed, Bogolyubov variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3|C92|Ruy Lopez: closed, 9.h3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 a5|C92|Ruy Lopez: closed, Keres (9...a5) variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Be6|C92|Ruy Lopez: closed, Kholmov variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Nd7|C92|Ruy Lopez: closed, Ragozin-Petrosian (`Keres') variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Bb7|C92|Ruy Lopez: closed, Flohr-Zaitsev system (Lenzerheide variation) 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6|C93|Ruy Lopez: closed, Smyslov defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Nb8|C94|Ruy Lopez: closed, Breyer defence 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Nb8 10. d4|C95|Ruy Lopez: closed, Breyer, 10.d4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Nb8 10. d4 Nbd7|C95|Ruy Lopez: closed, Breyer, Borisenko variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 c5|C95|Ruy Lopez: closed, Breyer, Gligoric variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Nb8 10. d4 Nbd7 11. Nh4|C95|Ruy Lopez: closed, Breyer, Simagin variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2|C96|Ruy Lopez: closed (8...Na5) 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c6 11. d4 Qc7|C96|Ruy Lopez: closed, Rossolimo defence 1. e4 e5 2. Nf3 Nc6 3.