Correct answer: Qf51...Ne4/Nb5 2.c8Q#/c8R#/Qf7#/Qe7# 1...Nf5 2.c8Q#/c8R#/Qf7# 1...Nf7/Nc8 2.Q:f7# 1...Nb7 2.Qf7#/Qe7# 1.B