Correct answer: R:f71...Ng5/Nf6/Nf8 2.Nf6# 1...R:f5 2.Qg2# 1.Rc5? (2.Nd6#) 1...Rd:d5[a] 2.Rb4#[A] 1...Re:d5/[б]/ 2.Re7#[Б] but 1...Re6!