Traxler Ambush: Traxler Counterattack line

Engine-verified opening line.

1. e4
2. e5
3. Nf3
4. Nc6
5. Bc4
6. Nf6
7. Ng5
8. Bc5
9. Nxf7
10. Bxf2+
11. Kxf2
12. Nxe4+
13. Ke1
14. Qh4+
15. g3
16. Nxg3
17. Rg1
18. Nh1+
19. Kf1
20. Qf2#