Correct answer: Rd31...B:d4[a] 2.Q:e6#[A] 1...Nf:d4/[б]/ 2.R:e5#[Б] 1...Ne:d4[c] 2.Rc5#[C] 1.B:e5?? (2.Nc3#/Nf6#[D]) 1...Nf:d4/[б]/ 2.Nf6#[D] 1...N