Correct answer: Qf61...B:d4 2.Nb4# 1...B:d6 2.Nb6# 1...Nf3/Nf7/Ng6/Nc6 2.Q:c4# 1.Qf6! (2.Q:e5#) 1...B:d4 2.Nb4# 1...B:d6 2.N