85. A revoke occurs when a player (other than dummy), holding one or
more cards of the suit led, plays a card of a different suit. The
penalty for a revoke takes precedence of all other counts.
86. A revoke is established if the trick in which it occurs be turned
and quitted, _i.e._ the hand removed from the trick after it has
been gathered and placed face downward on the table; or if either
the revoking player or his partner, whether in his right turn or
otherwise, have led or played to the following trick.
87. The penalty for a revoke is three tricks taken from the revoking
player and added to those of the adversaries.
88. The penalty is applicable only to the score of the game in which
it occurs.
89. Under no circumstances can the revoking side score game, in that
hand. Whatever their previous score may have been, the side revoking
cannot attain a higher score toward game than twenty-eight.
90. A player may ask his partner, whether he has not a card of the
suit which he has renounced; should the question be asked before the
trick is turned and quitted, subsequent turning and quitting does
not establish a revoke, and the error may be corrected unless the
question be answered in the negative or unless the revoking player or
his partner has led or played to the following trick.
91. If a player correct his mistake in time to save a revoke, any
player or players who have followed him may withdraw their cards
and substitute others, and the cards so withdrawn are not exposed
cards. If the player in fault be one of the dealer’s adversaries,
the card played in error is an exposed card, and the dealer can
call it whenever he pleases; or he may require the offender to play
his highest or lowest card of the suit to the trick in which he has
renounced.
92. If the player in fault be the dealer, the eldest hand may require
him to play the highest or lowest card of the suit in which he has
renounced, provided both adversaries of the dealer have played to the
current trick; but this penalty cannot be exacted against the dealer
when he is fourth in hand, nor can it be enforced at all from dummy.
93. At the end of a hand the claimants of a revoke may search all
the tricks. If the cards have been mixed the claim may be urged and
proved if possible; but no proof is necessary, and the revoke is
established if, after it has been claimed, the accused player or his
partner mix the cards before they have been sufficiently examined by
the adversaries.
94. A revoke must be claimed before the cards have been cut for the
following deal.
95. Should the players on both sides subject themselves to the revoke
penalty neither can win the game by that hand.
96. The revoke penalty may be claimed for as many revokes as occur
during a hand; but the accumulated penalty shall in no event exceed
thirteen tricks. (See Law 7.)