Correct answer: Nc51...Re6+[a] 2.K:e6#[A] 1...Re5/[б]/ 2.K:e5#[Б] 1...Rd7+[c] 2.K:d7#[C] 1...Rc7[d] 2.K:c7#[D] 1.Nc5! zz 1...Re6+[a]/Rc7[d]/Rb7/
