Correct answer: Qf21...Rb4 2.Q:b4# 1...Rc2/Rd2/Re2/Rf2/Rg2/Rh2 2.Qb4#/Ra7# 1.R7:b2?? (2.R:a2#/Qb4#) 1...Ka5 2.R:a2# 1...R