Correct answer: Na51...d:e6[a] 2.Nf6#[A] 1...d:c3/[б]/ 2.N:c3#[Б] 1...b4 2.c4# 1...c5 2.Nb:c5#/Nd8#/Na5# 1.Nbc5? zz 1...d:e6[a] 2.Q:e6#[C] 1...d:c3/[б]/ 2.K:c3#[D] 1...