An entry in the Encyclopedia of Chess Openings (ECO C37), reached after 17 half-moves: 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. Nc3 Qd4+ 8. Kh1 Qxc4 9. Nd5.
No further variations branch from this position in our database. To explore neighbouring ideas: