Correct answer: Qf71...Ke3 2.Qe5# 1.Nd1+?? 1...b2 2.Qd6# but 1...K:d3! 1.Qc6?? zz 1...Ke3 2.Qe4# but 1...Ke5! 1.Qc4+?? 1...Ke3 2.Nd1