An entry in the Encyclopedia of Chess Openings (ECO C23), reached after 6 half-moves: 1. e4 e5 2. Bc4 Bc5 3. c3 Qg5.
1. e4 e5 2. Bc4 Bc5 3. c3 Qg5
No further variations branch from this position in our database. To explore neighbouring ideas: