Correct answer: Bf31...g:f4 2.Nf3#/Nf7#/Nd3#/Nd7# 1.g:h7?? (2.h8Q#/h8R#) 1...g:f4 2.Ng6# but 1...Bb1! 1.Qd5?? (2.Qh1#) 1...g:f4 2.Nf3#/Nf7#/N