Correct answer: Nc51.N:f4? (2.Qb8#[A]) 1...Rc2/Rb2 2.Nd3# but 1...R:d5[a]! 1.Nc7? (2.Qe8#[Б]) but 1...B:d5/[б]/! 1.Nc5! (2.Nd7#) 1...R:d5[a] 2