An entry in the Encyclopedia of Chess Openings (ECO C39), reached after 18 half-moves: 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. d4 Nh5 9. Bxf4 Nxf4.
No further variations branch from this position in our database. To explore neighbouring ideas: