An entry in the Encyclopedia of Chess Openings (ECO A00), reached after 7 half-moves: 1. Nc3 e5 2. b3 d5 3. e4 dxe4 4. d3.
1. Nc3 e5 2. b3 d5 3. e4 dxe4 4. d3
No further variations branch from this position in our database. To explore neighbouring ideas: