Correct answer: Rd31.Kg2?? (2.Re5#/Rc5#/Rb5#/Ra5#/Rg5#/Rh5#) but 1...e1N+! 1.Rd3! (2.Rff3#/Rf2#/Rf1#/Rf6#/Rf7#/Rf8#) 1...K:d3