Correct answer: Nd51...Rd4/Rc4/Rb4/Ra4/Rf4/Rg4/Rh4 2.e8Q#/e8B# 1.Nd7?? (2.Nb8#) 1...d5 2.Qa6#/Qc5#/Qb6# but 1...Rb4! 1.Nd