Correct answer: Re81...Kc2/d4 2.Rc7# 1...Kd4 2.Qb4# 1.Re3+?? 1...Kd4 2.Qb4# but 1...Kc2! 1.Rd7?? zz 1...Kc2/d4 2.Rc7# but 1...Kd4! 1.
