Correct answer: Nd41.Nd6?? (2.Nf5#) but 1...K:d6! 1.Qc7+?? 1...Ke6 2.Qf7#/Qd6# 1...Kf8 2.Qf7#/Qd8# but 1...Ke8! 1.Qd8+?? 1...Ke6 2
