Correct answer: Nf21.B:f4[Б]? (2.Rg5#) 1...g:f6[a] 2.Nf2#[A] but 1...h6! 1.Bh4?? (2.Rg5#) 1...h6 2.Nf2#[A] but 1...g:f6[a]! 1.Nf2[A]! (2.Bf5#) 1...g:f6[a] 2.B