Correct answer: Rc71...R:e5[a] 2.Nf4#[A] 1...f:e5/[б]/ 2.Ne7#[Б] 1...Re4 2.f:e4# 1.Re7? (2.Nf4#[A]) 1...Re4 2.f:e4# but 1...f:e5/[б]/! 1.f4? (2.Ne7#[Б]) but 1...R:e
