Correct answer: Bg81...Nc6 2.R:d5# 1...Nd3 2.e3# 1...c4 2.Qa7# 1...Bf6 2.Q:f6# 1...B:g7+ 2.Q:g7# 1.Bf5?? (2.Q:e5#) 1...c4 2.Qa7# 1...Nd3 2.e3#