Correct answer: Qh11...Bh7/Bf7 2.Nf7# 1...b4 2.Nc4# 1...Nf5/Ng6/Nd5/Nc6/Nc8 2.Nc6# 1.Qd3?? (2.Nf3#) 1...b4 2.Nc4# but 1...f3! 1.Qh3