Correct answer: c8N1...Kf4 2.Ng4# 1.c8Q+?? 1...Kf4 2.Ng4# 1...Kg6 2.Qc2# but 1...Ke5! 1.Nf3+?? 1...Kg6 2.Ne5# but 1...Kf4! 1.c8N<