DOUBLING. No player may double his partner, but he may redouble an opponent who has doubled. All doubling must be strictly in turn, like any other bid. Doubling does not affect the value of the bids, but simply doubles the value of the tricks or penalties when they are scored at the end of the hand. Suppose A bids two royals and Y doubles. B can take A out with three clubs, because, so far as the bidding goes, two royals are still worth only 18.
Any over-call annuls the double, or redouble. Suppose A says two hearts, Y doubles, B redoubles, and Z says two royals. The doubling is all knocked out, and if A were to go three hearts and get the contract, hearts would be worth only 8 a trick in the scoring unless Y doubled all over again. A double reopens the bidding, just the same as any other declaration, allowing the player’s partner, or the player himself in his turn, to take himself out of the double by bidding something else.
IRREGULARITIES IN DECLARING. If any player declares out of turn, either in bidding a suit or in doubling, either opponent may demand a new deal, or may allow the declaration so made to stand, in which case the next player to the left must bid, just as if the declaration had been in turn. If a player pass out of turn there is no penalty, and the player whose turn it was must declare himself. The player who has passed out of his proper turn may re-enter the bidding if the declaration he passed has been over-called or doubled.
If a player makes an insufficient or impossible declaration, either adversary may call attention to it. Suppose the last bid is three royals, and the next player says four clubs. This is not enough, as three royals is worth 27 and four clubs only 24. Unless the player in error correct himself at once, and make it five clubs, either adversary may demand that it be five clubs, and the partner of the corrected player cannot bid unless this five-club bid is over-called or doubled. A player correcting himself must stick to the suit named, not being allowed to say four diamonds when he sees that four clubs is not enough.
If an insufficient declaration is passed or over-called by the player on the left, it is too late to demand any penalty, and the insufficient bid stands as regular. Suppose A bids three royals and Y says four clubs, B and Z passing. A can repeat his bid of three royals if he likes, as that is enough to over-call four clubs.
If a player makes an impossible declaration, such as calling six diamonds over five no trumps, when it is clearly impossible to make any diamond declaration worth 50, either adversary may demand a new deal, or may insist that the last bid made by his own side, five no trumps, shall be the winning declaration, or he may force the player in error to declare a grand slam in diamonds and play it, his partner being forbidden to take him out.
METHOD OF PLAYING. The winning declaration settled, whether doubled or not, the player on the left of the declarer leads for the first trick, and dummy’s cards go down, the declarer playing the combined hands. The declarer gathers the tricks for his side, but either adversary may gather for the other. The first six tricks taken by the declarer make a book, and all over the book count toward his contract. The adversaries have a book as soon as they reach the limit of the tricks they may win without “setting” the contract. If the contract is four hearts, the declarer must win ten tricks, so that his opponents have a book when they get home three tricks. All tricks should be laid so that they may be readily counted by any player at the table.
DUMMY. Until a card is led by the proper player, the declarer’s partner has all the rights of any other player, but as soon as the player to the left of the declarer leads and dummy’s cards are laid on the table, dummy’s duties and rights are restricted to the following:
He may call attention to few cards played to a trick; correct an improper claim of either adversary; call attention to a trick taken by the wrong side; ask his partner if he have none of a suit to which he renounces; correct an erroneous score; consult with the declarer as to which penalty to exact for a revoke; and, if he has not intentionally overlooked the hand of another player, he may call his partner’s attention to an established revoke made by the adversaries, or to a card exposed by them or a lead out of turn made by them.