Correct answer: Nf51...d2 2.Bb1# 1...Rd5/Rc6/Rb6/Ra6 2.Q:d5#/B:d5# 1...Bg2 2.Qg4#/Q:g2# 1...Bf1/Bg4 2.Qg4# 1...Bf5/Be6/Bd7/B