Correct answer: Qh71...f4 2.Bg4#/Bh3#/Bd7#/Bc8# 1.Qc5+?? 1...Ke4 2.Q:f5#/Qe3# 1...K:e6 2.Qe7# 1...Kf4 2.Q:f5# but 1...K:f6! 1.Q