An entry in the Encyclopedia of Chess Openings (ECO B01), reached after 8 half-moves: 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4.
1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4
No further variations branch from this position in our database. To explore neighbouring ideas: