68.—The call of a card may be repeated at every trick, until such card has been played.
69.—If a player called on to lead a suit have none of it, the penalty is paid.
Irregular Play.
70.—If the third hand play before the second, the fourth hand may play before his partner.
71.—Should the third hand not have played, and
the fourth play before his partner, the latter may be called on to win or not to win the trick.
72.—If any one omit playing to a trick, and such error be not discovered until he has played to the next, the adversaries may claim a new deal; should they decide that the deal stand good, the surplus card at the end of the hand is considered to have been played to the imperfect trick, but does not constitute a revoke therein.
73.—If any one play two cards to the same trick, or mix his trump, or other card, with a trick to which it does not properly belong, and the mistake be not discovered until the hand is played out, he is answerable for all consequent revokes he may have made.[[61]] If, during the play of the hand, the error be detected, the tricks may be counted face downwards, in order to ascertain whether there be among them a card too many; should this be the case they may be searched, and the card restored; the player is, however, liable for all revokes which he may have meanwhile made. If no revoke has been made, the card can be treated as an exposed card.
The Revoke.
74.—It is a revoke when a player, holding one or more cards of the suit led, plays a card of a different suit.