I. A treble, or game of three points, when their adversaries have not scored.
II. A double, or game of two points, when their adversaries have scored one or two.
III. A single, or game of one point, when their adversaries have scored three or four.
54.—The winners of the rubber gain two points (commonly called the rubber points) in addition to the value of their games.
55.—Should the rubber have consisted of three games, the value of the losers' game is deducted from the gross number of points gained by their opponents.
56.—If an erroneous score be proved, such mistake can be corrected prior to the conclusion of the game in which it occurred, and such game is not
concluded until the trump card of the following deal has been turned up.
57.—If an erroneous score, affecting the value of the rubber,[[60]] be proved, such mistake can be rectified at any time during the rubber.
Cards liable to be Called.
58.—The following are exposed cards:—
I. Two or more cards played at once, face upwards.
II. Any card dropped with its face upwards, in any way on or above the table, even though snatched up so quickly that no one can name it.
III. Every card named by the player holding it.
59.—All exposed cards are liable to be called, and must be left or placed face upwards on the table. If two or more cards are played at once, the adversaries have a right to call which they please to the trick in course of play, and afterwards to call the remainder. A card is not an exposed card, under the preceding Law, when dropped on the floor, or elsewhere below the table. An adversary may not require any exposed card to be played before it is the turn of the owner of the card to play; should he do so, he loses his right to exact the penalty for that trick.