An entry in the Encyclopedia of Chess Openings (ECO C02), reached after 7 half-moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. b4.
1. e4 e6 2. d4 d5 3. e5 c5 4. b4
No further variations branch from this position in our database. To explore neighbouring ideas: