
Black to play
The solution is: 12… Ba4 13. Bxf7+ Kf8 14. Qc4 Bb5 15. Qb3 Rd8 16. a4 Rxd4 17. f4 Bxa4 18. Rxa4 Qxa4 19. Qxa4 Bxc3+ 0-1

Black to play
The solution is: 12… Ba4 13. Bxf7+ Kf8 14. Qc4 Bb5 15. Qb3 Rd8 16. a4 Rxd4 17. f4 Bxa4 18. Rxa4 Qxa4 19. Qxa4 Bxc3+ 0-1