Correct answer: Nc21.Nc4?? zz 1...K:c5 2.Ne3#/Nb6# but 1...Kd5! 1.Ne6+?? 1...Kd5 2.Nc7# but 1...Kd7! 1.Na6+?? 1...Kd5 2.Nc7# but 1...
