1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 (Diagram) 4... f6 looks bad and is bad because of 4... Bg7 is thought to be best in this position. 5. Nxg5 fxg5 6. Qh5+ Ke7 7. Qf7+ Kd6 8. Qd5+ Ke7 9. Qe5# *