It's often said that one move can be the difference between victory and defeat.
In this position white played 40. Kc4 was promptly mated by 40...Rb4#
This was practically the only way white could lose.
40. Ke5 and black has no good way to prevent mate.
40. Kc6 and 40...Rd6+ keeps the game interesting.
While the last move 40. Ke6 leads to mate most amusingly.
40. Ke6 Rd6+
41. Kf7 Rxg6
It was a pretty poor game overall, but I liked the finish.
Feel free to correct any mistakes I've made.