Correct answer: Nd41...Qd4 2.c:d4#[A] 1...Nc7 2.Q:c7# 1.Nef4? (2.Q:e6#) 1...Q:c6/[б]/ 2.d4#[A] 1...Rg6[c] 2.N:g6#[Б] 1...Nc7 2.Q:c7# but 1...Rg7[a]!