Correct answer: Nf6+1...Bgf6 2.N:f8# 1...R8f6/Rg5/Bg3/Bd8 2.Rd8# 1...R5f6 2.Rd8#/Ne5# 1...Bhf6 2.Q:f5# 1.Nf6+! 1...Bg:f6 2.N