Correct answer: h41...Kf5 2.Nh4# 1.R:c6+?? 1...Kf5 2.Qh5#/Qf4#/Nh4#/Ne7# but 1...b:c6! 1.Bd5?? zz 1...Kf5 2.Nh4# but 1...b3! 1.Bg8?? zz