g3 defense: win queen: Traxler Counterattack line

White blocks with a pawn. It does not save them: no mate, but you win their queen.

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. Ke3
14. Qh4
15. g3
16. Nxg3
17. hxg3
18. Qd4+
19. Ke2
20. Qxc4+
21. d3
22. Qxf7