Correct answer: Qh51.Nb7[A]? (2.Qd7#[Б]) but 1...Nb6! 1.Qd7[Б]? (2.Nb7#[A]) 1...Kc5 2.N:e4# but 1...Nb6! 1.Nf3?? (2.Qh5#/Qf5#) 1...c5 2.Bb7#
