Correct answer: Rbd51...Ng3 2.N:f2# 1...Bb2/Bc5/Bd6/Be7/Bf8 2.N:b2#[A] 1...Bg2/Be2/Bd5/Bc6/Bb7/Ba8 2.Qe2# 1.Rb2? (2.Rd2#)