"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 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 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. g3,A29,English four knights kingside fianchetto",
"1. c4 c5,A30,English symmetrical variation",
"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. Nc3,A34,English symmetrical variation",
"1. c4 c5 2. Nc3 Nc6,A35,English symmetrical variation",
"1. c4 c5 2. Nc3 Nc6 3. g3,A36,English symmetrical variation",
"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 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. 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 e5,A44,Old Benoni defence",
"1. d4 Nf6,A45,Queen's pawn game",
"1. d4 Nf6 2. Nf3,A46,Queen's pawn game",
"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. 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 Ng4,A52,Budapest defence",
"1. d4 Nf6 2. c4 d6,A53,Old Indian defence",
"1. d4 Nf6 2. c4 d6 3. Nc3 e5,A54,Old Indian Ukrainian variation",
"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 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. e4,A59,Benko gambit 7.e4",
"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. 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. 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. 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. g3,A81,Dutch defence",
"1. d4 f5 2. e4,A82,Dutch Staunton gambit",
"1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5,A83,Dutch Staunton gambit Staunton's line",
"1. d4 f5 2. c4,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 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 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 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 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. 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. e5 Nd5 3. d4,B03,Alekhine's defence",
"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 Bg4,B05,Alekhine's defence modern variation 4...Bg4",
"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 g6 4. Nf3,B08,Pirc classical (two knights) system",
"1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4,B09,Pirc Austrian attack",
"*1. e4 c6,B10,Caro-Kann defence",
"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 d5 3. exd5,B13,Caro-Kann exchange 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. Nc3,B15,Caro-Kann defence",
"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. h4 h6 7. Nf3 Nd7,B19,Caro-Kann classical 7...Nd7",
"*1. e4 c5,B20,Sicilian defence",
"1. e4 c5 2. f4,B21,Sicilian Grand Prix attack",
"1. e4 c5 2. c3,B22,Sicilian Alapin's variation (2.c3)",
"1. e4 c5 2. Nc3,B23,Sicilian closed",
"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 d6,B25,Sicilian closed",
"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 a6,B28,Sicilian O'Kelly variation",
"1. e4 c5 2. Nf3 Nf6,B29,Sicilian Nimzovich-Rubinstein variation",
"1. e4 c5 2. Nf3 Nc6,B30,Sicilian defence",
"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. d4,B32,Sicilian defence",
"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 g6 5. Nxc6,B34,Sicilian accelerated fianchetto exchange 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 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. 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 cxd4 4. Nxd4 a6,B41,Sicilian Kan 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. 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. Nc3,B45,Sicilian Taimanov variation",
"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,B50 Sicilian1. e4 c5 2. Nf3 d6,B49,Sicilian Taimanov variation",
"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. d4 cxd4 4. Qxd4,B53,Sicilian Chekhover 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 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 Nc6 6. Bc4,B57,Sicilian Sozin not Scheveningen",
"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 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 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. 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 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 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 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. 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 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. 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. 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. 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 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. 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. Be2,B83,Sicilian Scheveningen 6.Be2",
"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 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. 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. Be3,B89,Sicilian Sozin 7.Be3",
"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. 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 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 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 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 Qc7 9. O-O-O Nbd7,B99,Sicilian Najdorf 7...Be7 main line",
"*1. e4 e6,C00,French defence",
"1. e4 e6 2. d4 d5 3. exd5,C01,French exchange variation",
"1. e4 e6 2. d4 d5 3. e5,C02,French advance variation",
"1. e4 e6 2. d4 d5 3. Nd2,C03,French Tarrasch",
"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 Nc6 7. Ne2 cxd4 8. cxd4,C06,French Tarrasch closed variation main line",
"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 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 Nf6,C11,French defence",
"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 Be7,C13,French classical",
"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 Bb4,C15,French Winawer (Nimzovich) 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 c5,C17,French Winawer advance 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 Ne7,C19,French Winawer advance 6...Ne7",
"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. Qxd4 Nc6,C22,Centre game",
"1. e4 e5 2. Bc4,C23,Bishop's opening",
"1. e4 e5 2. Bc4 Nf6,C24,Bishop's opening Berlin defence",
"1. e4 e5 2. Nc3,C25,Vienna game",
"1. e4 e5 2. Nc3 Nf6,C26,Vienna Falkbeer variation",
"1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4,C27,Vienna game",
"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. f4,C30,King's gambit",
"1. e4 e5 2. f4 d5,C31,King's Gambit Declined Falkbeer counter-gambit",
"1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4,C32,King's Gambit Declined Falkbeer 5.de",
"1. e4 e5 2. f4 exf4,C33,King's gambit accepted",
"1. e4 e5 2. f4 exf4 3. Nf3,C34,King's Gambit Accepted",
"1. e4 e5 2. f4 exf4 3. Nf3 Be7,C35,King's Gambit Accepted Cunningham defence",
"1. e4 e5 2. f4 exf4 3. Nf3 d5,C36,King's Gambit Accepted Abbazia defence (classical defence modern defence[!])",
"1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Nc3,C37,King's Gambit Accepted Quaade gambit",
"1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7,C38,King's Gambit Accepted",
"1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4,C39,King's Gambit Accepted",
"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. d4,C43,Petrov modern (Steinitz) attack",
"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. Bb5,C48,Four knights Spanish 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. 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 Bxb4 5. c3 Ba5,C52,Evans gambit",
"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 Nf6 5. d4 exd4 6. cxd4,C54,Giuoco Piano",
"1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6,C55,Two knights defence",
"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. Ng5,C57,Two knights 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. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6,C59,Two knights defence",
"*1. e4 e5 2. Nf3 Nc6 3. Bb5,C60,Ruy Lopez (Spanish opening)",
"1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4,C61,Ruy Lopez Bird's defence",
"1. e4 e5 2. Nf3 Nc6 3. Bb5 d6,C62,Ruy Lopez old Steinitz defence",
"1. e4 e5 2. Nf3 Nc6 3. Bb5 f5,C63,Ruy Lopez Schliemann defence",
"1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5,C64,Ruy Lopez classical (Cordel) defence",
"1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6,C65,Ruy Lopez Berlin defence",
"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 Nxe4,C67,Ruy Lopez Berlin defence open 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. O-O,C69,Ruy Lopez exchange variation 5.O-O",
"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 d6,C71,Ruy Lopez modern Steinitz defence",
"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. c3,C74,Ruy Lopez modern Steinitz defence",
"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 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. O-O,C78,Ruy Lopez 5.O-O",
"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 Nxe4,C80,Ruy Lopez open (Tarrasch) 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. 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. 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 Be7,C83,Ruy Lopez open classical defence",
"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. 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. 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 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 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. 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. 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 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 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 c5 11. d4 Qc7,C97,Ruy Lopez closed Chigorin 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 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6,C98,Ruy Lopez closed Chigorin 12...Nc6",
"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 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4,C99,Ruy Lopez closed Chigorin 12...c5d4",
"1. d4 d5,D00,Queen's pawn game",
"1. d4 d5 2. Bf4,D00,Queen's pawn Mason variation",
"1. d4 d5 2. Bf4 c5,D00,Queen's pawn Mason variation Steinitz counter-gambit",
"1. d4 d5 2. Bg5,D00,Levitsky attack (Queen's bishop attack)",
"1. d4 d5 2. e4,D00,Blackmar gambit",
"1. d4 d5 2. e3 Nf6 3. Bd3,D00,Queen's pawn stonewall attack",
"1. d4 d5 2. Nc3,D00,Queen's pawn Chigorin variation",
"1. d4 d5 2. Nc3 Bg4,D00,Queen's pawn Anti-Veresov",
"1. d4 d5 2. Nc3 Nf6 3. e4,D00,Blackmar-Diemer gambit",
"1. d4 d5 2. Nc3 Nf6 3. e4 dxe4 4. f3 exf3 5. Nxf3 e6,D00,Blackmar-Diemer Euwe defence",
"1. d4 d5 2. Nc3 Nf6 3. e4 e5,D00,Blackmar-Diemer Lemberg counter-gambit",
"1. d4 d5 2. Nc3 Nf6 3. Bg5,D01,Richter-Veresov attack",
"1. d4 d5 2. Nc3 Nf6 3. Bg5 Bf5 4. Bxf6,D01,Richter-Veresov attack Veresov variation",
"1. d4 d5 2. Nc3 Nf6 3. Bg5 Bf5 4. f3,D01,Richter-Veresov attack Richter variation",
"1. d4 d5 2. Nf3,D02,Queen's pawn game",
"1. d4 d5 2. Nf3 Nc6,D02,Queen's pawn game Chigorin variation",
"1. d4 d5 2. Nf3 c5,D02,Queen's pawn game Krause variation",
"1. d4 d5 2. Nf3 Nf6,D02,Queen's pawn game",
"1. d4 d5 2. Nf3 Nf6 3. Bf4,D02,Queen's bishop game",
"1. d4 d5 2. Nf3 Nf6 3. Bg5,D03,Torre attack (Tartakower variation)",
"1. d4 d5 2. Nf3 Nf6 3. e3,D04,Queen's pawn game",
"1. d4 d5 2. Nf3 Nf6 3. e3 e6,D05,Queen's pawn game",
"*1. d4 d5 2. c4,D06,Queen's Gambit",
"1. d4 d5 2. c4 Bf5,D06,Queen's Gambit Declined Grau (Sahovic) defence",
"1. d4 d5 2. c4 Nf6,D06,Queen's Gambit Declined Marshall defence",
"1. d4 d5 2. c4 c5,D06,Queen's Gambit Declined symmetrical (Austrian) defence",
"1. d4 d5 2. c4 Nc6,D07.Queen's Gambit Declined Chigorin defence",
"1. d4 d5 2. c4 e5,D08,Queen's Gambit Declined Albin counter-gambit",
"1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3,D09,Queen's Gambit Declined Albin counter-gambit 5.g3",
"1. d4 d5 2. c4 c6,D10,Queen's Gambit Declined Slav defence",
"1. d4 d5 2. c4 c6 3. Nf3,D11,Queen's Gambit Declined Slav 3.Nf3",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5,D12,Queen's Gambit Declined Slav 4.e3 Bf5",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5,D13,Queen's Gambit Declined Slav exchange variation",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5,D14,Queen's Gambit Declined Slav exchange variation 6.Bf4 Bf5",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3,D15,Queen's Gambit Declined Slav 4.Nc3",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4,D16,Queen's Gambit Declined Slav accepted Alapin variation",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Na6 6. e4 Bg4,D16,Queen's Gambit Declined Slav Smyslov variation",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 e6,D16,Queen's Gambit Declined Slav Soultanbeieff variation",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bg4,D16,Queen's Gambit Declined Slav Steiner variation",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5,D17,Queen's Gambit Declined Slav Czech defence",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3,D18,Queen's Gambit Declined Slav Dutch variation",
"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O,D19,Queen's Gambit Declined Slav Dutch variation",
"*1. d4 d5 2. c4 dxc4,D20,Queen's gambit accepted",
"1. d4 d5 2. c4 dxc4 3. Nf3,D21,Queen's Gambit Accepted 3.Nf3",
"1. d4 d5 2. c4 dxc4 3. Nf3 a6,D22,Queen's Gambit Accepted Alekhine defence",
"1. d4 d5 2. c4 dxc4 3. Nf3 Nf6,D23,Queen's gambit accepted",
"1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3,D24,Queen's Gambit Accepted 4.Nc3",
"1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3,D25,Queen's Gambit Accepted 4.e3",
"1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6,D26,Queen's Gambit Accepted 4...e6",
"1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6,D27,Queen's Gambit Accepted classical 6...a6",
"1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2,D28,Queen's Gambit Accepted classical 7.Qe2",
"1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7,D29,Queen's Gambit Accepted classical 8...Bb7",
"*1. d4 d5 2. c4 e6,D30,Queen's gambit declined",
"1. d4 d5 2. c4 e6 3. Nc3,D31,Queen's Gambit Declined 3.Nc3",
"1. d4 d5 2. c4 e6 3. Nc3 c5,D32,Queen's Gambit Declined Tarrasch defence",
"1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3,D33,Queen's Gambit Declined Tarrasch Schlechter-Rubinstein system",
"1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7,D34,Queen's Gambit Declined Tarrasch Prague variation 7...Be7",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6,D35,Queen's Gambit Declined 3...Nf6",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. Qc2,D36,Queen's Gambit Declined exchange positional line 6.Qc2",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3,D37,Queen's Gambit Declined 4.Nf3",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4,D38,Queen's Gambit Declined Ragozin variation",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Bg5 dxc4,D39,Queen's Gambit Declined Ragozin Vienna variation",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5,D40,Queen's Gambit Declined Semi-Tarrasch defence",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5,D41,Queen's Gambit Declined Semi-Tarrasch 5.cd",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3,D42,Queen's Gambit Declined Semi-Tarrasch 7.Bd3",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6,D43,Queen's Gambit Declined semi-Slav",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. Bg5 dxc4,D44,Queen's Gambit Declined semi-Slav 5.Bg5 dc",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3,D45,Queen's Gambit Declined semi-Slav 5.e3",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3,D46,Queen's Gambit Declined semi-Slav 6.Bd3",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4,D47,Queen's Gambit Declined semi-Slav 7.Bc4",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6,D48,Queen's Gambit Declined semi-Slav Meran 8...a6",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5,D49,Queen's Gambit Declined semi-Slav Meran Blumenfeld variation",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5,D50,Queen's Gambit Declined 4.Bg5",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7,D51,Queen's Gambit Declined 4.Bg5 Nbd7",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3,D52,Queen's Gambit Declined",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7,D53,Queen's Gambit Declined 4.Bg5 Be7",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Rc1,D54,Queen's Gambit Declined Anti-neo-orthodox variation",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3,D55,Queen's Gambit Declined 6.Nf3",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4,D56,Queen's Gambit Declined Lasker defence",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3,D57,Queen's Gambit Declined Lasker defence main line",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 b6,D58,Queen's Gambit Declined Tartakower (Makagonov-Bondarevsky) system",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 b6 8. cxd5 Nxd5,D59,Queen's Gambit Declined Tartakower (Makagonov-Bondarevsky) system 8.cd Nxd5",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7,D60,Queen's Gambit Declined Orthodox defence",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2,D61,Queen's Gambit Declined Orthodox defence Rubinstein variation",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c5 8. cxd5,D62,Queen's Gambit Declined Orthodox defence 7.Qc2 c5 8.cd (Rubinstein)",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1,D63,Queen's Gambit Declined Orthodox defence 7.Rc1",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Qc2,D64,Queen's Gambit Declined Orthodox defence Rubinstein attack (with Rc1)",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Qc2 a6 9. cxd5,D65,Queen's Gambit Declined Orthodox defence Rubinstein attack main line",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3,D66,Queen's Gambit Declined Orthodox defence Bd3 line",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5,D67,Queen's Gambit Declined Orthodox defence Bd3 line Capablanca freeing manoevre",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5,D68,Queen's Gambit Declined Orthodox defence classical variation",
"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5,D69,Queen's Gambit Declined Orthodox defence classical 13.de",
"1. d4 Nf6 2. c4 g6 3. f3 d5,D70,Neo-Gruenfeld defence",
"1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. cxd5 Nxd5,D71,Neo-Gruenfeld 5.cd",
"1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. cxd5 Nxd5 6. e4 Nb6 7. Ne2,D72,Neo-Gruenfeld 5.cd main line",
"1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3,D73,Neo-Gruenfeld 5.Nf3",
"1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. cxd5 Nxd5 7. O-O,D74,Neo-Gruenfeld 6.cd Nxd5 7.O-O",
"1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. cxd5 Nxd5 7. O-O c5 8. Nc3,D75,Neo-Gruenfeld 6.cd Nxd5 7.O-O c5 8.Nc3",
"1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. cxd5 Nxd5 7. O-O Nb6,D76,Neo-Gruenfeld 6.cd Nxd5 7.O-O Nb6",
"1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. O-O,D77,Neo-Gruenfeld 6.O-O",
"1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. O-O c6,D78,Neo-Gruenfeld 6.O-O c6",
"1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. O-O c6 7. cxd5 cxd5,D79,Neo-Gruenfeld 6.O-O main line",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5,D80,Gruenfeld defence",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3,D81,Gruenfeld Russian variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4,D82,Gruenfeld 4.Bf4",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O,D83,Gruenfeld Gruenfeld gambit",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cxd5 Nxd5 7. Nxd5 Qxd5 8. Bxc7,D84,Gruenfeld Gruenfeld gambit accepted",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5,D85,Gruenfeld exchange variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4,D86,Gruenfeld exchange classical variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 c5,D87,Gruenfeld exchange Spassky variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 c5 9. O-O Nc6 10. Be3 cxd4 11. cxd4,D88,Gruenfeld Spassky variation main line 10...cd 11.cd",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 c5 9. O-O Nc6 10. Be3 cxd4 11. cxd4 Bg4 12. f3 Na5 13. Bd3 Be6,D89,Gruenfeld Spassky variation main line 13.Bd3",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3,D90,Gruenfeld Three knights variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5,D91,Gruenfeld 5.Bg5",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4,D92,Gruenfeld 5.Bf4",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3,D93,Gruenfeld with Bf4 e3",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3,D94,Gruenfeld 5.e3",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qb3,D95,Gruenfeld with e3 & Qb3",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3,D96,Gruenfeld Russian variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4,D97,Gruenfeld Russian variation with e4",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4,D98,Gruenfeld Russian Smyslov variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3,D99,Gruenfeld defence Smyslov main line",
"1. d4 Nf6 2. c4 e6,E00.Queen's pawn game",
"1. d4 Nf6 2. c4 e6 3. Bg5,E00,Neo-Indian (Seirawan) attack",
"1. d4 Nf6 2. c4 e6 3. g3,E00,Catalan opening",
"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2,E01,Catalan closed",
"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+,E02,Catalan open 5.Qa4",
"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2,E03,Catalan open Alekhine variation",
"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3,E04,Catalan open 5.Nf3",
"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7,E05,Catalan open classical line",
"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3,E06,Catalan closed 5.Nf3",
"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7,E07,Catalan closed 6...Nbd7",
"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2,E08,Catalan closed 7.Qc2",
"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2,E09,Catalan closed main line",
"1. d4 Nf6 2. c4 e6 3. Nf3,E10,Queen's pawn game",
"1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5,E10,Blumenfeld counter-gambit",
"1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5,E10,Blumenfeld counter-gambit accepted",
"1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5,E10,Blumenfeld counter-gambit Dus-Chotimursky variation",
"1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5 exd5 6. cxd5 h6,E10,Blumenfeld counter-gambit Spielmann variation",
"1. d4 Nf6 2. c4 e6 3. Nf3 a6,E10,Dzindzikhashvili defence",
"1. d4 Nf6 2. c4 e6 3. Nf3 Ne4,E10,Doery defence",
"1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+,E11,Bogo-Indian defence",
"1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2,E11,Bogo-Indian defence Gruenfeld variation",
"1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7,E11,Bogo-Indian defence Nimzovich variation",
"1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Bb7 7. Bg2 O-O 8. Nc3 Ne4 9. Qc2 Nxc3 10. Ng5,E11,Bogo-Indian defence Monticelli trap",
"*1. d4 Nf6 2. c4 e6 3. Nf3 b6,E12,Queen's Indian defence",
"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 h6 6. Bh4 Bb4,E13,Queen's Indian 4.Nc3 main line",
"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3,E14,Queen's Indian 4.e3",
"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3,E15,Queen's Indian 4.g3",
"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+,E16,Queen's Indian Capablanca variation",
"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7,E17,Queen's Indian 5.Bg2 Be7",
"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3,E18,Queen's Indian old main line 7.Nc3",
"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3,E19,Queen's Indian old main line 9.Qxc3",
"*1. d4 Nf6 2. c4 e6 3. Nc3 Bb4,E20,Nimzo-Indian defence",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3,E21,Nimzo-Indian three knights variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3,E22,Nimzo-Indian Spielmann variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6,E23,Nimzo-Indian Spielmann 4...c5 5.dc Nc6",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3,E24,Nimzo-Indian Saemisch variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5,E25,Nimzo-Indian Saemisch variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3,E26,Nimzo-Indian Saemisch variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O,E27,Nimzo-Indian Saemisch variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3,E28,Nimzo-Indian Saemisch variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 c5 7. Bd3 Nc6,E29,Nimzo-Indian Saemisch main line",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5,E30,Nimzo-Indian Leningrad variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 d6,E31,Nimzo-Indian Leningrad main line",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2,E32,Nimzo-Indian classical variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6,E33,Nimzo-Indian classical 4...Nc6",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5,E34,Nimzo-Indian classical Noa variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5,E35,Nimzo-Indian classical Noa variation 5.cd ed",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3,E36,Nimzo-Indian classical Noa variation 5.a3",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2,E37,Nimzo-Indian classical Noa variation main line 7.Qc2",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5,E38,Nimzo-Indian classical 4...c5",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O,E39,Nimzo-Indian classical Pirc variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3,E40,Nimzo-Indian 4.e3",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5,E41,Nimzo-Indian 4.e3 c5",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2,E42,Nimzo-Indian 4.e3 c5 5.Ne2 (Rubinstein)",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6,E43,Nimzo-Indian Fischer variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2,E44,Nimzo-Indian Fischer variation 5.Ne2",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Ba6,E45,Nimzo-Indian 4.e3 Bronstein (Byrne) variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O,E46,Nimzo-Indian 4.e3 O-O",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3,E47,Nimzo-Indian 4.e3 O-O 5.Bd3",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5,E48,Nimzo-Indian 4.e3 O-O 5.Bd3 d5",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3,E49,Nimzo-Indian 4.e3 Botvinnik system",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3,E50,Nimzo-Indian 4.e3 e8g8 5.Nf3 without ...d5",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5,E51,Nimzo-Indian 4.e3 e8g8 5.Nf3 d7d5",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 b6,E52,Nimzo-Indian 4.e3 main line with ...b6",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5,E53,Nimzo-Indian 4.e3 main line with ...c5",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O dxc4 8. Bxc4,E54,Nimzo-Indian 4.e3 Gligoric system with 7...dc",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nbd7,E55,Nimzo-Indian 4.e3 Gligoric system Bronstein variation",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nc6,E56,Nimzo-Indian 4.e3 main line with 7...Nc6",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 cxd4,E57,Nimzo-Indian 4.e3 main line with 8...dc and 9...cd",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3,E58,Nimzo-Indian 4.e3 main line with 8...Bxc3",
"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4,E59,Nimzo-Indian 4.e3 main line",
"*1. d4 Nf6 2. c4 g6,E60,King's Indian defence",
"1. d4 Nf6 2. c4 g6 3. Nc3,E61,King's Indian defence 3.Nc3",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3,E62,King's Indian fianchetto variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nc6 7. O-O a6,E63,King's Indian fianchetto Panno variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 c5,E64,King's Indian fianchetto Yugoslav system",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 c5 7. O-O,E65,King's Indian fianchetto Yugoslav 7.O-O",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 c5 7. O-O Nc6 8. d5,E66,King's Indian fianchetto Yugoslav Panno",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nbd7,E67,King's Indian fianchetto with ...Nd7",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4,E68,King's Indian fianchetto classical variation 8.e4",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4 c6 9. h3,E69,King's Indian fianchetto classical main line",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4,E70,King's Indian 4.e4",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3,E71,King's Indian Makagonov system (5.h3)",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3,E72,King's Indian with e4 & g3",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2,E73,King's Indian 5.Be2",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5,E74,King's Indian Averbakh 6...c5",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 e6,E75,King's Indian Averbakh main line",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4,E76,King's Indian Four pawns attack",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2,E77,King's Indian Four pawns attack 6.Be2",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. Nf3,E78,King's Indian Four pawns attack with Be2 and Nf3",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3,E79,King's Indian Four pawns attack main line",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3,E80,King's Indian Saemisch variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O,E81,King's Indian Saemisch 5...O-O",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 b6,E82,King's Indian Saemisch double fianchetto variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6,E83,King's Indian Saemisch 6...Nc6",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8,E84,King's Indian Saemisch Panno main line",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5,E85,King's Indian Saemisch orthodox variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6,E86,King's Indian Saemisch orthodox 7.Nge2 c6",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5,E87,King's Indian Saemisch orthodox 7.d5",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6,E88,King's Indian Saemisch orthodox 7.d5 c6",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5,E89,King's Indian Saemisch orthodox main line",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3,E90,King's Indian 5.Nf3",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2,E91,King's Indian 6.Be2",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5,E92,King's Indian classical variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7,E93,King's Indian Petrosian system main line",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O,E94,King's Indian orthodox variation",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1,E95,King's Indian orthodox 7...Nbd7 8.Re1",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1 c6 9. Bf1 a5,E96,King's Indian orthodox 7...Nbd7 main line",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6,E97,King's Indian orthodox Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1,E98,King's Indian orthodox Aronin-Taimanov 9.Ne1",
"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. f3 f5,E99,King's Indian orthodox Aronin-Taimanov main line",
