An entry in the Encyclopedia of Chess Openings (ECO D40), reached after 9 half-moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. Bg5.
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. Bg5
No further variations branch from this position in our database. To explore neighbouring ideas: