Cheating in bridge refers to a deliberate violation of the rules of the game of bridge or other unethical behaviour that is intended to give an unfair advantage to a player or team. Cheating can occur in many forms[1] and can take place before, during, or after a board or game.
Commonly cited instances of cheating include: conveying information to a partner by means of a pre-arranged illegal signal, viewing the opponents' cards in a board prior to their arrival at the table, altering the records as to the results of a board; in certain games, it may include illicit shuffling to deal favourable cards to oneself or one's partner or marking cards so as to make their denomination and/or rank apparent to the perpetrator.