Correct answer: N:h51.N:g8?? (2.N:c4#) 1...Kd4 2.Ng4# but 1...Nf3! 1.Nd5+?? 1...Kd4 2.Nd3#/Nd7# but 1...B:d5! 1.Ng6?? (2.Qf4#) 1...K