An entry in the Encyclopedia of Chess Openings (ECO C44), reached after 6 half-moves: 1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4.
1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4
No further variations branch from this position in our database. To explore neighbouring ideas: