Correct answer: Bb21...Ke4 2.Rg4# 1...Nh4/Ne1 2.Qd5#/g4# 1...Nf4 2.g4# 1...Ne3 2.Qf3# 1.K:g2?? zz 1...Ke4 2.Rg4# but 1...c2! 1.Bd2?? zz 1.