Correct answer: c71...K:e8 2.Qg8# 1.Ka1?? zz 1...K:e8 2.Qg8# but 1...a2! 1.Kb1?? zz 1...K:e8 2.Qg8# but 1...a2+! 1.Nf6?? (2.Qg8#) but 1...Kg7!