Correct answer: Ne31...K:d5 2.Qc5# 1.Bf4+?? 1...K:d5 2.Qc5# but 1...K:f5! 1.Bc3+?? 1...K:d5 2.Qd4#/Qc5# 1...Kd6 2.Qc5# but 1...K:f