Correct answer: Rc31...Ke5 2.Re6# 1...Qc5/Qd6/Qe4/Qd7/Qb5 2.Rd6# 1...Qc3/Qd5 2.Qd5# 1...Qc7/Qc8/Qb6/Qa6/Qe8 2.Rd6#/Qd5