Correct answer: Nd41...Qd4/Qf4/Qg4/Q:h4 2.Nc7# 1.Kb8?? (2.Nc7#) but 1...c2! 1.Kc6?? (2.Ra4#) but 1...b2! 1.Kc8?? (2.Nc7#) but 1...c2! 1.Ne3+