Traxler Venom: 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. Kg1
14. Qh4
15. Qf3
16. Rf8
17. g3
18. Nxg3
19. Qxg3
20. Qxc4