Correct answer: Bg51...Rc3+ 2.R:c3# 1.Bg5! (2.Ke4#/Kd3#/Kf3#) 1...Bh7 2.Kf3# 1...e4 2.K:e4# 1...Rc3+ 2.R:c3# 1...Rc4/R:c5 2.K