Correct answer: Rd71...Kc8 2.c:b8Q#/c:b8R# 1.c8Q+?? 1...K:a7 2.Ra5#/Ra6#/Qa6# but 1...R:c8! 1.Rb6+?? 1...K:a7/Kc8 2.c:b8Q# but 1...K