Correct answer: Nc81...Rb5/Bb3/Bc2/Bd1/Bc6 2.Qc6# 1...R:b7 2.Q:b7# 1...Rc8 2.b:c8Q#/b:c8B# 1...Rd8 2.Rf7# 1.Qh7+?? 1...Bg7 2.Q