Correct answer: Qg71...B:g2+ 2.N:g2# 1.Nd3+?? 1...Kg3 2.Qe1# but 1...Ke3! 1.Qd4+?? 1...Be4 2.Qd6# but 1...Ne4! 1.Qf6?? (2.Bg6#/Bh7