Correct answer: Nc71...K:e5 2.Qe4# 1...K:c5 2.Qb6# 1.Ka1?? zz 1...K:e5 2.Qe4# 1...K:c5 2.Qb6# but 1...a2! 1.Kb1?? zz 1...K:e5 2.Qe4#
