Chess Opening Theory/ECO volume A

ECO index: A00--A99Edit

A00: Uncommon Openings: 1. g3 (Benko Opening), 1. Nc3 (Sleipner Opening), 1. a3 (Anderssen's Opening), 1. b4 (Sokolsky Opening), 1. g4 (Grob's Attack), 1. h3 (Basmanic Defence), 1. c3 (Saragossa Opening), 1. d3 (Mieses Opening), 1. e3 (French Attack), 1. h4 (Desprez Opening), 1. a4 (Ware Opening), 1. Nh3 (Amar Opening), 1. Na3 (Durkin's Attack), 1. f3 (Gedult's Opening)
A01: Nimzowitsch-Larsen Attack: 1. b3
A02: Bird's Opening: 1. f4
A03: Bird's Opening: 1. f4 d5
A04: Reti Opening: 1. Nf3
A05: Reti Opening: 1. Nf3 Nf6
A06: Reti Opening: 1. Nf3 d5
A07: King's Indian Attack: 1. Nf3 d5 2. g3
A08: King's Indian Attack: 1. Nf3 d5 2. g3 c5 3. Bg2
A09: Reti Opening: 1. Nf3 d5 2. c4
A10: English: 1. c4
A11: English, Anglo-Slav System: 1. c4 c6
A12: English with b3: 1. c4 c6 2. Nf3 d5 3. b3
A13: English: 1. c4 e6
A14: English: 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O
A15: English: 1. c4 Nf6
A16: English: 1. c4 Nf6 2. Nc3
A17: English: 1. c4 Nf6 2. Nc3 e6
A18: English, Mikenas-Carls: 1. c4 Nf6 2. Nc3 e6 3. e4
A19: English, Mikenas-Carls, Sicilian Variation: 1. c4 Nf6 2. Nc3 e6 3. e4 c5
A20: English: 1. c4 e5
A21: English: 1. c4 e5 2. Nc3
A22: English: 1. c4 e5 2. Nc3 Nf6
A23: English, Bremen System, Keres Variation: 1. c4 e5 2. Nc3 Nf6 3. g3 c6
A24: English, Bremen System with ...g6: 1. c4 e5 2. Nc3 Nf6 3. g3 g6
A25: English: 1. c4 e5 2. Nc3 Nc6
A26: English: 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6
A27: English, Three Knights System: 1. c4 e5 2. Nc3 Nc6 3. Nf3
A28: English: 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6
A29: English, Four Knights, Kingside Fianchetto: 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 g3
A30: English, Symmetrical: 1. c4 c5
A31: English, Symmetrical, Benoni Formation: 1. c4 c5 2. Nf3 Nf6 3. d4
A32: English, Symmetrical Variation: 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6
A33: English, Symmetrical: 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nc6
A34: English, Symmetrical: 1. c4 c5 2. Nc3
A35: English, Symmetrical: 1. c4 c5 2. Nc3 Nc6
A36: English, Symmetrical: 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7
A37: English, Symmetrical: 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3
A38: English, Symmetrical: 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6
A39: English, Symmetrical: 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. d4
A40: Unusual Black responses to 1. d4: 1...e5 (Englund Gambit), 1...b5 (Polish Defence), 1...Nc6 (Nimzowitsch Defence), 1...g6 (Modern Defence without 2. e4), 1...e6 (French Indian Defence).
A41: Tartakower System: 1. d4 d6
A42: Tartakower System with 2. c4: 1. d4 d6 2.c4
A43: Various Benonis: 1. d4 c5
A44: Old Benoni: 1. d4 c5 2. d5 e5
A44: Semi-Benoni: 1. d4 c5 2. d5 e5 3. e4 d6
A45: Unusual Indian Openings: 1. d4 Nf6
A45: Trompowsky Attack: 1. d4 Nf6 2. Bg5
A46: Unusual Indian Openings with 2. Nf3: 1. d4 Nf6 2. Nf3
A47: Unusual Indian Openings with 2. Nf3: 1. d4 Nf6 2. Nf3 b6
A48: Torre Attack with 2...e6: 1. d4 Nf6 2. Nf3 e6 3. Bg5
A48: Torre Attack with 2...g6: 1. d4 Nf6 2. Nf3 g6 3. Bg5
A48: London System: 1. d4 Nf6 2. Nf3 e6 3. Bf4
A49: Fianchetto Variation: 1. d4 Nf6 2. Nf3 e6 3. g3
A50: Black Knights' Tango: 1. d4 Nf6 2. c4 Nc6
A51: Budapest Gambit Declined and Unusual Lines: 1. d4 Nf6 2. c4 e5
A52: Budapest Gambit Main Lines: 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4
A53: Old Indian Defence: 1. d4 Nf6 2. c4 d6
A54: Old Indian Defence main lines: 1. d4 Nf6 2. c4 d6 3. Nc3 e5
A55: Old Indian Defence main lines: 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3
A56: Czech Benoni: 1. d4 Nf6 2. c4 c5 3. d5
A57: Benko/Volga Gambit sidelines: 1. d4 Nf6 2. c4 c5 3. d5 b5
A58: Benko/Volga Gambit Accepted: 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5
A59: Benko/Volga Gambit Accepted (White castles by hand): 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4
A60: Modern Benoni and early divergences: 1. d4 Nf6 2. c4 c5 3. d5 e6
A61: Modern Benoni without early e4: 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6
A62: Modern Benoni, Fianchetto Variation without early ...Nbd7: 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. g3
A63: Modern Benoni, Fianchetto Variation sidelines: 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
A64: Modern Benoni, Fianchetto Variation main line: 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 Re8 10. Nd2 Nbd7
A65: Modern Benoni, sidelines with early e4: 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4
A66: Modern Benoni, Mikenas Attack: 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. e5
A67: Modern Benoni, Taimanov Variation: 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+
A68: Modern Benoni, Four Pawns Attack without 9...Re8: 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. Bd3
A69: Modern Benoni, Four Pawns Attack with 9...Re8: 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. Re8
A70: Modern Benoni, 7.Nf3: 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3
A71: Modern Benoni, 7.Nf3 Bg7 8.Bg5 without Be2: 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Bg5
A72: Modern Benoni, Classical Variation with 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 9. Bg5
A73: Modern Benoni, Classical Variation and unusual Black 9th moves: 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
A74: Modern Benoni, Classical Variation with 9...a6: 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
A75: Modern Benoni, Classical Variation main line: 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
A76: Modern Benoni, Classical Variation with 9...Re8 10.Qc2: 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. Qc2
A77: Modern Benoni, Classical Variation with 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
A78: Modern Benoni, Classical Variation with 10...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
A79: Modern Benoni, Classical Variation with 10...Na6 11.f3: 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 11. f3
A80: Dutch Defence and unusual White second moves: 1. d4 f5
A81: Dutch Defence with 2.g3: 1. d4 f5 2. g3
A82: Dutch Defence, Staunton Gambit: 1. d4 f5 2. e4
A83: Dutch Defence, Staunton Gambit with 3.Nc3 Nf6 4.Bg5: 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5
A84: Dutch Defence, 2.c4: 1. d4 f5 2. c4
A85: Dutch Defence, 2.c4 Nf6 3.Nc3: 1. d4 f5 2. c4 Nf6 3. Nc3
A86: Dutch Defence, Leningrad Variation sidelines: 1. d4 f5 2. c4 Nf6 3. g3
A87: Dutch Defence, Leningrad Variation with 5.Nf3: 1. d4 f5 2. c4 Nf6 3. g3 Nf6 3. g6 4. Bg2 Bg7 5. Nf3
A88: Dutch Defence, Leningrad Variation main line 7...c6: 1. d4 f5 2. c4 Nf6 3. g3 Nf6 3. g6 4. Bg2 Bg7 5. Nf3 O-O 6. O-O d6 7. Nc3 c6
A89: Dutch Defence, Leningrad Variation main line 7...Nc6: 1. d4 f5 2. c4 Nf6 3. g3 Nf6 3. g6 4. Bg2 Bg7 5. Nf3 O-O 6. O-O d6 7. Nc3 c6
A90: Dutch Defence sidelines and Stonewall: 1. d4 f5 2. c4 Nf6 3. g3 e6
A91: Dutch Defence, Classical Variation sidelines: 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7
A92: Dutch Defence, Classical Stonewall with ...Be7 and early deviations: 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3
A93: Dutch Defence, Classical Stonewall with 7.b3: 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. b3
A94: Dutch Defence, Classical Stonewall with 7.b3 c6 8.Ba3: 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. b3 c6 8. Ba3
A95: Dutch Defence, Classical Stonewall with 7.Nc3 c6: 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. Nc3 c6
A96: Dutch Defence, Ilyin-Genevsky Variation: 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6
A97: Dutch Defence, 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
A98: Dutch Defence, Ilyin-Genevsky Variation with 8.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. Qc2
A99: Dutch Defence, Ilyin-Genevsky Variation with 8.b3: 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

ECO volumesEdit

ECO volume A A00-A99
ECO volume B B00-B99
ECO volume C C00-C99
ECO volume D D00-D99
ECO volume E E00-E99

External LinksEdit

Chess Archaeology: Openings classified ECO A00-A99 from chessarch.com

Last modified on 21 August 2009, at 13:25