Correct answer: Nd21...R:g1[a] 2.Bc3#[A] 1.Bf2? zz 1...R:g1[a] 2.Bd4#[Б] 1...R:g3/[б]/ 2.N:g3#[C] 1...Rh2 2.N:h2#/Ne3#/Nd2#[D] but 1...R:f2+!