An entry in the Encyclopedia of Chess Openings (ECO D11), reached after 7 half-moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nbd2.
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nbd2
No further variations branch from this position in our database. To explore neighbouring ideas: