Correct answer: Ng21...Nf1[a] 2.Q:g4#[C]/Q:f1#[D] 1...Bf6 2.R:f6#[A] 1...Bg5 2.R:g5#[Б] 1...Bf8/Bc5/Bb4/Ba3 2.Rg5#[Б]/Rf6#[A] 1...Nf3 2.Q