Correct answer: Nf51...b4[a] 2.Q:c4#[A] 1...f:g3/[б]/ 2.Q:f3#[Б] 1...g:h3[c] 2.R:f4#[C] 1.N:g4?? (2.N:f2#) but 1...B:g4! 1.R:g4?? (2.R:f4#[C]) but 1...B:g4! 1.Q<