An entry in the Encyclopedia of Chess Openings (ECO C23), reached after 9 half-moves: 1. e4 e5 2. Bc4 Bc5 3. c3 d5 4. Bxd5 Nf6 5. d4.
1. e4 e5 2. Bc4 Bc5 3. c3 d5 4. Bxd5 Nf6 5. d4
No further variations branch from this position in our database. To explore neighbouring ideas: