Are players allowed to have a sideboarding cheat sheet?

Players are allowed to use a sideboarding cheat sheet, provided that it is brief and does not need to be revealed to an opponent. This practice is intended to facilitate the sideboarding process by allowing players to keep a quick reference of their strategies or card choices without creating an unfair advantage or distraction.

A sideboarding cheat sheet can include notes such as which cards to bring in or take out for specific matchups, but it must be concise enough to comply with competitive integrity guidelines. This enables players to prepare effectively for their matches while maintaining the game's focus on strategy and skill rather than relying solely on memorization.

The stipulation that it does not need to be revealed means that players are not obligated to share this information with their opponents, maintaining the competitive edge that players can gain from their preparations.