An entry in the Encyclopedia of Chess Openings (ECO A45), reached after 7 half-moves: 1. d4 Nf6 2. e4 Nxe4 3. Bd3 Nf6 4. Bg5.
1. d4 Nf6 2. e4 Nxe4 3. Bd3 Nf6 4. Bg5
No further variations branch from this position in our database. To explore neighbouring ideas: