Correct answer: Qb51.Qe5+?? 1...Kc4 2.Q:c5# but 1...K:c2! 1.Qd8?? (2.Qd3#) 1...c4 2.Qd2# but 1...B:c2! 1.Qd7?? (2.Qd3#) 1...c4 2.Qd2# but 1...