To annul by withdrawing.

In trick-taking card games, a revoke (or renege) is a violation of important rules regarding the play of tricks serious enough to render the round invalid. A revoke is a violation ranked in seriousness somewhat below overt cheating, with the status of a more minor offense only because, when it happens, it is usually accidental.

Trick-taking games normally have several rules regarding which cards may and may not be played to a trick. For example, most games require a player to follow suit or play in the suit led, if possible. Rules of this sort are sometimes called "honor rules", because there is no way to detect a violation at the moment of its commission. However, the irregularity will normally be discovered later, and there are usually strict penalties for revokes.

Some "honor rules" in different trick-taking games

  • Spades, Euchre and 500 require that players play to the suit led, unless void in it.
  • Hearts requires that players follow the suit led. In some variants, a player holding the Queen of Spades and void in the led suit is required to play it.
  • Pinochle requires players to
    • play to the led suit unless void in it, with a potentially winning (higher than the highest-so-far) card if possible;
    • if void in the led suit, trump with a potentially winning card;
    • if unable to do any of those things, play anything.
  • Bourré requires players to
    • play to the led suit unless void in it, with a potentially winning (higher than the highest-so-far) card if possible;
    • if void in the led suit, trump with a potentially winning card;
    • play to bourré as many other players as possible.

Penalties for revokes vary:

  • In Bridge the penalty for a revoke is normally one or two tricks scored against the offending partnership, depending on the exact circumstances, but if the non-offending side is more seriously damaged than that (typically because the revoke made a critical entry worthless), then they are compensated accordingly.
  • In Pinochle and many other bidding trick games, a revoke results in an automatic set, or failure at the bid, normally precipitating a penalty.
  • In Hearts a revoking player receives 26 penalty points (all of them) and other players receive none.
  • In Bourré a revoking player must forfeit an amount of money equal to the pot.
  • In Euchre a revoking player/team loses bid and receives a 2 point penalty. The opponents are also awarded two points.
  • In Bid Euchre (Pepper), a revoking player playing the bid loses the bid and receives a 2 point penalty. The opponents are awarded the bid. A revoking team playing against the bid forfeits the bid to the player playing the bid. They also receive a penalty in the amount of the bid being played.

Normally revokes are given a penalty equal to the most severely negative outcome of the round possible. The intention is to discourage the practice, which upsets other players' strategies to the point where the only acceptable resolution may be to declare the round void.

Therefore, a revoke rarely has a strategic advantage, except in king-maker scenarios.

Since hands are (usually) concealed, a player can revoke (accidentally or intentionally) without being caught immediately. For example, if a player does not play a spade to a trick where spades were led, other players will simply assume that player has no spades and note the fact in future play decisions. However, most trick-taking games play a hand until exhaustion, and attentive players will soon notice the violation when a spade is played to a subsequent trick.

Other articles related to "revoke":

Consent Search - Revoking Consent and Exceptions - Exceptions To Revoking Consent
... Most courts have found the right to revoke consent is removed once a passenger has begun X-ray screening ... for the Eleventh Circuit found Herzbrun “had no constitutional right to revoke his consent to a search of his bag once it entered the X-ray machine and ... suspicion or probable cause once this has been developed the individual loses the right to revoke consent ...
Laws Of Duplicate Bridge - Irregularities - Revoke
... Revoke (failure to follow suit when a player is able to) is handled by laws 61-64 ... A revoke may be corrected (correct card substituted) without trick penalty before any player of the offending side plays to the next trick otherwise, it becomes established ... If a revoke is corrected, the exposed card becomes a penalty card and the opponents may change their played cards as they see fit (however, the revoking side may not take advantage of those seen cards—see ...
Revocation - Contract Law
... and whether the Seller still has time to cure), or revoke their acceptance ... Under Article 2 of the Uniform Commercial Code, for a buyer to revoke, he must show (1) the goods failed to conform to the contract and (2) it substantially impaired the value of the goods (this is a question of ... If the buyer knew of the nonconformity at the time of acceptance, he can revoke only if he can show he accepted the goods with the impression the seller would cure ...
Consumer Protection Act 1987 - Consumer Safety - Provision of Information
... The Secretary of State may require information of any person in order to (s.18) Make, vary or revoke any safety regulations or Serve, vary or revoke a prohibition notice or Serve or revoke a notice to warn ...
Umpire (cricket) - Decisions and Signals - Signals To Scorers - Revoke Last Signal
... If the umpire makes an incorrect signal, he may revoke it ... Also, an umpire may revoke if he accidentally signals a four though he intended to signal six ...

Famous quotes containing the word revoke:

    Unless the people can choose their leaders and rulers, and can revoke their choice at intervals long enough to test their measures by results, the government will be a tyranny exercised in the interests of whatever classes or castes or mobs or cliques have this choice.
    George Bernard Shaw (1856–1950)

    You adorn me with your own opulence. May you never revoke all that you lent me!
    Franz Grillparzer (1791–1872)