Correct answer: Qe2+1...Kd8 2.Rc8# 1.Kg7?? zz 1...Ke8/Kd8 2.Rc8# but 1...b4! 1.Kg6?? zz 1...Ke8/Kf8/Kd8 2.Rc8# but 1...b4! 1.Kg8?? zz
