Annotated chess game

Instead 71.Kd3 Rd5ch 72.Kc4 Rd4ch 73.Kc5 Rc7#.

This is now a very good check. The one I was looking at was 71...Qe5ch, which also led to a quick win (72.Kg4 Rg7ch 73.Qg5 Qxf5ch 74.Kg3 Qxg5ch etc.

A nice finish, once you found a plan. A bit of a see-saw game, in which both sides had chances. It is not easy to play when there are lots of complications, but in fact I would encourage you to do so as often as you can, for it helps develop the imagination and chess vision. On the whole, I thought this game showed an overall qualitative improvement in your game.