Correct answer: Qc11...Kd5 2.Qh1# 1.Qh1+?? 1...d5 2.Qh6# but 1...Bd5! 1.Qf8?? (2.Qa8#) 1...d5 2.Qf6#/Qh6# but 1...Ba6! 1.Qc1! zz 1...K