ECO chess codes A2 - King's English (Reversed Sicilian
A20 - King's English (Reversed Sicilian)
1. c4 e5
A21
1. c4 e5
2. Nc3
A22
1. c4 e5
2. Nc3 Nf6
A23
1. c4 e5
2. Nc3 Nf6
3. g3 c6
A24
1. c4 e5
2. Nc3 Nf6
3. g3 g6
A25
1. c4 e5
2. Nc3 Nc6
A26
1. c4 e5
2. Nc3 Nc6
3. g3 g6
4. Bg2 Bg7
5. d3 d6
A27
1. c4 e5
2. Nc3 Nc6
3. Nf3
A28 - The English/Four Knights variation
1. c4 e5
2. Nc3 Nc6
3. Nf3 Nf6
A29
1. c4 e5
2. Nc3 Nc6
3. Nf3 Nf6
4. g3
ECO chess codes
Chess Notation
Chess Openings