An entry in the Encyclopedia of Chess Openings (ECO D45), reached after 12 half-moves: 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Ne4 6. Bd3 f5.
1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Ne4 6. Bd3 f5
No further variations branch from this position in our database. To explore neighbouring ideas: