Correct answer: Qf61...Bf6/Bf8/Bd6/Bc5 2.N4:f6# 1.Qf6! (2.Qg7#/Q:h8#) 1...Kg8/Re5 2.Qg7# 1...Nf7 2.Q:f7#/Qg7# 1...B:f6