Correct answer: Q:c71...c6/c5 2.R:f4# 1.B:c7?? (2.R:f4#) but 1...Be5! 1.Ng6?? (2.R:f4#) but 1...Q:g6! 1.R:f4+?? 1...Ke5 2.B:c7#/Q:c7# but 1...K<