Correct answer: Qf51...Rb7/Rda7/Re7/Rf7/Rg7/Rh7 2.Qc5# 1.Qd5+?? 1...Ke3 2.Qe4# but 1...K:d5! 1.Qg4+?? 1...Kd5/Ke3 2.Qe4#
