ECO chess codes B0 - Unsymmetrical King Games Pawn
B00 - Nimzowitsch Defence
1. e4 Nc6
B01 - Scandinavian Defense
1. e4 d5
B02 - Alekhine's defense
1. e4 Nf6
B03
1. e4 Nf6
2. e5 Nd5
3. d4
B04 - Alekhine's Defence Classical Variation
1. e4 Nf6
2. e5 Nd5
3. d4 d6
4. Nf3
B05
1. e4 Nf6
2. e5 Nd5
3. d4 d6
4. Nf3 Bg4
B06 - Modern Defense
1. e4 g6
B07 - Pirc Defence
1. e4 d6
2. d4 Nf6
B08 - Pirc Defence Classical Variation
1. e4 d6
2. d4 Nf6
3. Nc3 g6
4. Nf3
B09 - Pirc Defence, Austrian Attack
1. e4 d6
2. d4 Nf6
3. Nc3 g6
4. f4
ECO Chess Codes
Chess Notation
Chess Openings
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