Correct answer: Qg31...Ng8 2.Q:g4# 1...Bg3 2.N:g3# 1...B:f2 2.R:f2# 1.R:b3?? zz 1...Ng8 2.Q:g4# 1...Bg3 2.N:g3# but 1...B:f2! 1.Rd2??
