Correct answer: Re31...B:c6+ 2.Q:c6# 1...f3 2.Qg4# 1.Q:c7?? (2.Q:a5#) 1...B:c6+ 2.Q:c6# but 1...B:c7! 1.R:b7?? zz 1...f3 2.Qg4# 1...B:e5/B