An entry in the Encyclopedia of Chess Openings (ECO A41), reached after 8 half-moves: 1. d4 d6 2. Nf3 Bg4 3. c4 Nd7 4. Qb3 Rb8.
1. d4 d6 2. Nf3 Bg4 3. c4 Nd7 4. Qb3 Rb8
No further variations branch from this position in our database. To explore neighbouring ideas: