Correct answer: Qf31...d5 2.Qc8# 1.Qc4+?? 1...d5 2.Qc8# but 1...Kf5! 1.Qc5?? (2.Ng7#/Nc7#/f5#) 1...Bh7 2.Ng7#/Nc7# 1...f5 2.d5#/Q:d6# 1...d5