Correct answer: Qd21...R:a4/Ra6/Ra7/Ra8/Rb5 2.Rb5# 1...Rc5 2.Nb6# 1...Ng4/Nf1 2.Q:f3# 1...Qd7 2.R:d7# 1...Q:d8 2.R:d8# 1.Bc3?