Correct answer: Qc51...Re6[a] 2.N:h3#[Б] 1...Nf3+/[б]//Ng2/Nd3/[б]//Nc2 2.Q:f3#[C] 1...f6[c] 2.N5e6#[D] 1...Ne4/Ne8/Nf5/Nc4[d]/N:c8/Nb5/Nb7