Correct answer: 1․ c8B1...Kb6 2.c8N# 1.Be7?? (2.B:c5#) but 1...Kb6! 1.Nc6+?? 1...Kb6 2.c8Q#/c8B# but 1...K:b7! 1.c8B! (2.Nc6#)
