An entry in the Encyclopedia of Chess Openings (ECO A00), reached after 7 half-moves: 1. b4 c6 2. Bb2 a5 3. b5 cxb5 4. e4.
1. b4 c6 2. Bb2 a5 3. b5 cxb5 4. e4
No further variations branch from this position in our database. To explore neighbouring ideas: