Correct answer: Rf51...Qb5 2.Rd4# 1...Qc5+/Q:c7 2.R:c5# 1...Qd4/Qe3/Qf2/Qg1/Qa7 2.N:a5# 1...Nd3/Ne2/N:b3/Na2 2.Q:d3# 1.K