Correct answer: Nd41...e4 2.Qf4# 1.Qc4+?? 1...Kf5 2.N:h4# 1...e4 2.Q:e4# but 1...Kf3! 1.Qf7?? (2.R:h4#/Ne3#) but 1...B:g5! 1.N:h4?? zz 1...