Correct answer: Nh71...Bd4 2.c4# 1...Bc5 2.Qe6# 1...Bc6 2.Q:c6# 1...Qf3+ 2.B:f3# 1...Qg2+ 2.B:g2# 1.Ng6?? (2.Nf4#/Ne7#) 1...Be3 2.Ne7#