An entry in the Encyclopedia of Chess Openings (ECO D11), reached after 8 half-moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4.
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4
No further variations branch from this position in our database. To explore neighbouring ideas: