An entry in the Encyclopedia of Chess Openings (ECO D10), reached after 7 half-moves: 1. d4 d5 2. c4 c6 3. Nc3 e5 4. e4.
1. d4 d5 2. c4 c6 3. Nc3 e5 4. e4
No further variations branch from this position in our database. To explore neighbouring ideas: