Correct answer: Nc41...K:a5 2.Q:c5# 1...c4 2.Qb4# 1.N:c3+?? 1...K:a5 2.Q:c5# but 1...Kb4! 1.Bd3+?? 1...K:a5 2.Q:a6# 1...c4 2.Qb4# but 1...K