Correct answer: Nc51...B:f4 2.Q:f4# 1...Bd4 2.c:d4# 1.Kg5?? (2.Bf6#/Bd6#) 1...B:f4+ 2.Q:f4# 1...Bc5 2.Bf6# but 1...f:e4! 1.Q:e3?? (2.R:f5#/