An entry in the Encyclopedia of Chess Openings (ECO A00), reached after 7 half-moves: 1. a4 e5 2. a5 d5 3. e3 f5 4. a6.
1. a4 e5 2. a5 d5 3. e3 f5 4. a6
No further variations branch from this position in our database. To explore neighbouring ideas: