SCACCHI CHE PASSIONE

ECO CODES

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Chess openings are generally classified using ECO codes, that were introduced in 1966 by the Encyclopaedia of Chess Openings the Chess Informant.  

The code is made of a letter (A, B, C, D), which originally indicated the volume of the Encyclopaedia in which the opening was included, followed by a two-digit number (00 to 99).

Below is the list of chess openings with their ECO code.



Symbols used

R various moves    # without   @ with   N Knight    B Bishop   R Rook    Q Queen    K King

A

 

A00-09

R    # 1.e4 1.c4 1.d4

A10-19

1.c4    R # 1..e5 1..c5

A20-29

1.c4 e5

A30-39

1.c4 c5

A40-49

1.d4      R # 1..Nf6  1..f5  1..d5
1.d4 Nf6     R # 2.c4

A50-59

1.d4 Nf6 2.c4     R # 2..c5  2..e6  2..g6
1.d4 Nf6 2.c4 c5    R # 3.d5
1.d4 Nf6 2.c4 c5 3.d5    R # 3..e6

A60-69

1.d4 Nf6 2.c4 c5 3.d5 e6   R # 4.Nc3
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 R # 4..ed5
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 ed5   R # 5.cd5
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 ed5 5.cd5    R # 5..d6
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 ed5 5.cd5 d6   R # 6.e4
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 ed5 5.cd5 d6 6.e4    R # 6..g6
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 ed5 5.cd5 d6 6.e4 g6   R  # 7.Nf3

A70-79

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 ed5 5.cd5 d6 6.e4 g6 7.Nf3

A80-88

1.d4 f5 R #2.c4
1.d4 f5 2.c4   R # 2..Nf6
1.d4 f5 2.c4 Nf6   R # 3.g3
1.d4 f5 2.c4 Nf6 3.g3   R # 3..e6

A90-99

1.d4 f5 2.c4 Nf6 3.g3 e6

B

 

B00-09

1.e4     R # 1..c6 1..c5 1..e6 1..e5

B10-19

1.e4 c6  

B20-29

1.e4 c5    R # 2.Nf3
1.e4 c5 2.Nf3     R # 2..Nc6 2..e6 2..d6

B30-39

1.e4 c5 2.Nf3 Nc6

B40-49

1.e4 c5 2.Nf3 e6

B50-59

1.e4 c5 2.Nf3 d6   R # 3.d4
1.e4 c5 2.Nf3 d6 3.d4   R # 3..cd4
1.e4 c5 2.Nf3 d6 3.d4 cd4 4.Nd4   R # 4..Nf6
1.e4 c5 2.Nf3 d6 3.d4 cd4 4.Nd4 Nf6   R # 5.Nc3
1.e4 c5 2.Nf3 d6 3.d4 cd4 4.Nd4 Nf6 5.Nc3   R # 5..Nc6 5..g6 5..e6 5..a6
1.e4 c5 2.Nf3 d6 3.d4 cd4 4.Nd4 Nf6 5.Nc3 Nc6   R # 6.Bg5

B60-69

1.e4 c5 2.Nf3 d6 3.d4 cd4 4.Nd4 Nf6 5.Nc3 Nc6 6.Bg5

B70-79

1.e4 c5 2.Nf3 d6 3.d4 cd4 4.Nd4 Nf6 5.Nc3 g6

B80-89

1.e4 c5 2.Nf3 d6 3.d4 cd4 4.Nd4 Nf6 5.Nc3 e6

B90-99

1.e4 c5 2.Nf3 d6 3.d4 cd4 4.Nd4 Nf6 5.Nc3 a6

C

 

C00-09


1.e4 e6   R # 2.d4
1.e4 e6 2.d4    R # 2..d5
1.e4 e6 2.d4 d5   R # 3.Nc3

C10-19

1.e4 e6 2.d4 d5 3.Nc3  

C20-29

1.e4 e5    R # 2.f4 2.Nf3

C30-39

1.e4 e5 2.f4

C40-49

1.e4 e5 2.Nf3   R # 2..Nc6
1.e4 e5 2.Nf3 Nc6   R # 3.Bc4 3.Bb5

C50-59

1.e4 e5 2.Nf3 Nc6 3.Bc4

C60-69

1.e4 e5 2.Nf3 Nc6 3.Bb5 R # 3..a6
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6   R # 4.Ba4

C70-79

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4   R # 4..Nf6
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6   R # 5.00
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.00 R # 5..Ne4 5..Be7

C80-89

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.00 Ne4
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.00 Be7
R # 6.Re1
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.00 Be7 6.Re1 R # 6..b5
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.00 Be7 6.Re1 b5 7.Bb3 R # 7..d6

C90-99

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.00 Be7 6.Re1 b5 7.Bb3 d6

D

 

D00-09

1.d4 d5   R # 2.c4
1.d4 d5 2.c4  R # 2..c6 2..e6 2..dc4

D10-19

1.d4 d5 2.c4 c6

D20-29

1.d4 d5 2.c4 dc4

D30-39

1.d4 d5 2.c4 e6   R # 3.Nc3
1.d4 d5 2.c4 e6 3.Nc3   R # 3..Nf6
1.d4 d5 2.c4 e6 3.Nc3 Nf6   R # 4.Nf3 4.Bg5
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3  R # 4..c5 4..c6

D40-49

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6        

D50-59

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 R # 4..Be7
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7   R # 5.e3
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 R # 5..00
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 00 R # 6.Nf3

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 00 6.Nf3   R # 6..Nbd7

D60-69

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 00 6.Nf3 Nbd7

D70-79

1.d4 Nf6 2.c4 g6   @ 3..d5    R # 3.g3 3.Nc3
1.d4 Nf6 2.c4 g6 3.g3 d5

D80-89

1.d4 Nf6 2.c4 g6 3.Nc3 d5  R # 4.Nf3

D90-99

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3

E

 

E00-09

1.d4 Nf6 2.c4 e6   R # 3.Nc3 3.Nf3

E10-19

1.d4 Nf6 2.c4 e6 3.Nf3

E20-29

1.d4 Nf6 2.c4 e6 3.Nc3   R # 3..c5 3..d5 3..Bb4
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4  
R # 4.Bg5 4.Qc2 4.e3

E30-39

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2

E40-49

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 R # 4..00
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 00   R # 5.Nf3

E50-59

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 00 5.Nf3

E60-69

1.d4 Nf6 2.c4 g6   # 3..d5   R # 3.Nc3
1.d4 Nf6 2.c4 g6 3.Nc3   R # 3..d5 3..Bg7
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7   R # 4.e4

E70-79

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4   R # 4..d6
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6   R # 5.Nf3 5.f3

E80-89

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3

E90-99

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3