Correct answer: Qa81...Rb8 2.c:b8Q#/c:b8R# 1.Qd7?? (2.Qc6#) 1...Rb6 2.Qd5# but 1...R:c7! 1.Qe6?? (2.Qc6#) 1...Rb6 2.Qd5#/Qc4# but 1...<