An entry in the Encyclopedia of Chess Openings (ECO E10), reached after 9 half-moves: 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5.
1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5
No further variations branch from this position in our database. To explore neighbouring ideas: