Correct answer: Ned61...K:e6[a] 2.Nc7#[A] 1...Kc6/[б]//d:e6/[б]/ 2.Ne7#[Б] 1.Ncd6?? zz 1...Kc6/[б]//d:e6/[б]/ 2.Be4#[C] but 1...K:e6[a]! 1.Kh4?? zz 1...K:e6