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
{176} 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.