Purdy maintained that the best way to get better at chess was to play over annotated master chess games. Below is Purdy’s method for going over chess games:
1. Take the side of the winner (or either side if the game was a draw).
2. Cover the moves with an index card, and when it’s your turn to move select a move based on the position on the chess board.
3. Uncover the move, and compare it to your move. Review the annotations and understand why the text move is better than the move you selected.