Originally posted by National Master Dale
27.h3 is a terrible move.
Homework assignment 1-Try to figure out why? take your time.
Why on earth would a National master say 27.h3 is terrible.
Whites 28th -30th moves are really useless bishop wiggling.
The bishop is well placed on c3. Wiggling your bishop does not improve its position.
Assignment 2-- Try to come up with a plan that ...[text shortened]... en you basically have no plan.
Assignment 3--Try to figure out which move is the losing move.
"Why on earth would a National master say 27.h3 is terrible."
Yes, indeed, I can't figure out why this would be a bad move, let alone a terrible one. It effectively blocks black's counterplay on the kingside. There are other good moves, but none that I find better.
When looking for terrible moves on the white side, there are plenty of them. The first really awfull move I saw was 17.Nd4?? Why? Because it throws away the initiative whereas 17.Rxd7+ practically won the game. White made that move 10 moves later, it was still a good one, but far less effective than it would have been here.
"Try to figure out which move is the losing move"
Make sure you distinguish between the move that effectively lost the game, and the move that should have lost the game. They are not the same.