Correct answer: Qc81...f3 2.Q:g5# 1.Nd4? (2.Nf5#[A]/Nc2#[Б]) but 1...K:d4! 1.Nd6? (2.Nf5#[A]) but 1...Kd4! 1.Na3? (2.Nc2#[Б]) but 1...Kd4! 1.N