Correct answer: Qe81...B:c7 2.Q:c7# 1.c8Q+?? 1...Bc7 2.Qd:c7#/Qc:c7# but 1...B:c8! 1.c8R+?? 1...Bc7 2.Q:c7# but 1...B:c8! 1.Qe8! (2.d8