1) The document provides guidelines for addressing rule violations in games, including allowing backups within a reasonable time if the situation is simple, or leaving the game state as-is if a backup is too complex or not possible.
2) Exceptions are made for illegal permanent choices, missed draw steps, or objects in the wrong zone within a turn of the error.
3) Examples demonstrate applying the guidelines, such as allowing a player to properly name a card with Runed Halo after missing it initially, or shuffling an improperly resolved Green Sun's Zenith back into its owner's library.