Correct answer: Nf61...Kh5 2.Qh7#[A] 1...Kf5 2.Qe6#[Б] 1.Kc3? zz 1...Kh5 2.Qh7#[A] 1...Kf5 2.Qe6#[Б] but 1...c4! 1.Kb3? zz 1...Kh5 2.Qh7#
