Correct answer: Bf61...Ne5+/Nf6/Nf8/Nc5/Nb6/Nb8 2.R:e5# 1...f3 2.Bg4# 1.Be7?? (2.g4#) 1...f:g3 2.Bg4# 1...Ne5+/Nf6 2.R:e5# but 1...B: