Correct answer: Qh41...Kc5 2.Qa5# 1...Ke5 2.Qg5# 1.Nb6+?? 1...Ke5 2.Qg5# but 1...Kc5! 1.Nc7+?? 1...Ke5 2.Qg5# but 1...Kc5! 1.Qh4
