Correct answer: Qg51...c4 2.Nc2# 1...Bf5/Bg4/Bh3/B:f7/Bd7/Bc8 2.Bc3# 1.Q:e6?? (2.Bc3#) but 1...Re4! 1.Ne5?? (2.Nc2#) 1...Re4 2.N