Correct answer: Qc11...K:g5 2.Qc1# 1.Q:g2?? (2.Bf3#/Be2#/Bd1#/Bf7#/Be8#) but 1...B:g2+! 1.R:g2?? (2.Qc1#/Bf3#/Be2#/Bd1#/Bf7#/B