The Red king should move 26-30. Then White has to make a very creative move to win. Moving the Red single piece is a move only a computer would make. I suppose it drags the game out but no human player would give up a piece so easily. Check out the endgame, it’s short but interesting. You can see why the game was a draw.
How can I look it up?
Do you mean look up the final endgame?