ECO
Chess Opening Codes:
A00
|
Uncommon Opening
1 g4, a3, h3, etc. |
A01
|
Nimzovich-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, Caro-Kann Defensive
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 4 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
1 c4 c5 2 Nc3 Nc6 3 g3 |
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, Main line
with d4
1 c4 c5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 Nf3 Nf6 6 O-O O-O 7 d4 |
A40
|
Queen's Pawn Game
1 d4 |
A41
|
Queen's Pawn Game (with ...d6)
1 d4 d6 |
A42
|
Modern Defense, Averbakh System
1 d4 d6 2 c4 g6 3 Nc3 Bg7 4 e4 |
A43
|
Old Benoni
1 d4 c5 |
A44
|
Old Benoni Defense
1 d4 c5 2 d5 e5 |
A45
|
Queen's Pawn Game
1 d4 Nf6 |
A46
|
Queen's Pawn Game
1 d4 Nf6 2 Nf3 |
A47
|
Queen's Indian
1 d4 Nf6 2 Nf3 b6 |
A48
|
King's Indian
1 d4 Nf6 2 Nf3 g6 |
A49
|
King's Indian, Fianchetto without
c4
1 d4 Nf6 2 Nf3 g6 3 g3 |
A50
|
Queen's Pawn Game
1 d4 Nf6 2 c4 |
A51
|
Budapest Gambit
1 d4 Nf6 2 c4 e5 |
A52
|
Budapest Gambit
1 d4 Nf6 2 c4 e5 3 dxe5 Ng4 |
A53
|
Old Indian
1 d4 Nf6 2 c4 d6 |
A54
|
Old Indian, Ukrainian Variation,
4.Nf3
1 d4 Nf6 2 c4 d6 3 Nc3 e5 4 Nf3 |
A55
|
Old Indian, Main line
1 d4 Nf6 2 c4 d6 3 Nc3 e5 4 Nf3 Nbd7 5 e4 |
A56
|
Benoni Defense
1 d4 Nf6 2 c4 c5 |
A57
|
Benko Gambit
1 d4 Nf6 2 c4 c5 3 d5 b5 |
A58
|
Benko Gambit
1 d4 Nf6 2 c4 c5 3 d5 b5 4 cxb5 a6 5 bxa6 |
A59
|
Benko Gambit
1 d4 Nf6 2 c4 c5 3 d5 b5 4 cxb5 a6 5 bxa6 Bxa6 6 Nc3 d6 7 e4 |
A60
|
Benoni Defense
1 d4 Nf6 2 c4 c5 3 d5 e6 |
A61
|
Benoni
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 Nf3 g6 |
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 |
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 |
A64
|
Benoni, Fianchetto, 11...Re8
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 Nf3 g6 7 g3 Bg7 8 Bg2 O-O 9 |
A65
|
Benoni, 6.e4
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 |
A66
|
Benoni
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 f4 |
A67
|
Benoni, Taimanov Variation
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 f4 Bg7 8 Bb5+ |
A68
|
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 |
A69
|
Benoni, Four Pawns Attack, Main
line
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 f4 Bg7 8 Nf3 O-O 9 |
A70
|
Benoni, Classical with 7.Nf3
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 |
A71
|
Benoni, Classical, 8.Bg5
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Bg5 |
A72
|
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 |
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 |
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 |
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 |
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 |
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 |
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 |
A79
|
Benoni, Classical, 11.f3
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Be2 O-O 9 |
A80
|
Dutch
1 d4 f5 |
A81
|
Dutch
1 d4 f5 2 g3 |
A82
|
Dutch, Staunton Gambit
1 d4 f5 2 e4 |
A83
|
Dutch, Staunton Gambit
1 d4 f5 2 e4 fxe4 3 Nc3 Nf6 4 Bg5 |
A84
|
Dutch
1 d4 f5 2 c4 |
A85
|
Dutch, with c4 & Nc3
1 d4 f5 2 c4 Nf6 3 Nc3 |
A86
|
Dutch
1 d4 f5 2 c4 Nf6 3 g3 |
A87
|
Dutch, Leningrad, Main Variation
1 d4 f5 2 c4 Nf6 3 g3 g6 4 Bg2 Bg7 5 Nf3 |
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 c6 |
A89
|
Dutch, Leningrad, Main Variation
with Nc6
1 d4 f5 2 c4 Nf6 3 g3 g6 4 Bg2 Bg7 5 Nf3 O-O 6 O-O d6 7 Nc3 Nc6 |
A90
|
Dutch
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 |
A91
|
Dutch Defense
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 |
A92
|
Dutch
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O |
A93
|
Dutch, Stonewall, Botvinnik
Variation
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d5 7 b3 |
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 b3 c6 8 Ba3 |
A95
|
Dutch, Stonewall
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d5 7 Nc3 c6 |
A96
|
Dutch, Classical Variation
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d6 |
A97
|
Dutch, Ilyin-Genevsky
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, 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 Qc2 |
A99
|
Dutch, Ilyin-Genevsky Variation
with 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 |
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