In contract bridge, there are two basic types of scoring for a single deal: "duplicate" and "rubber" scoring, which share most features, but differ in how the components of the score are accumulated. In duplicate scoring, the outcome of a deal presents a single number assigned to the pair who won the deal (the other pair receiving the same negative score by implication); in rubber bridge, that number is divided into two components: "above the line" and "below the line", both assigned to the winning pair.
Psychic bid (also psych) is a bid in contract bridge, grossly misstating the power and/or suit lengths of one's hand, used deliberately to confuse the opponents.
A non-playing person designated to move boards between tables during a tournament.
Call
Any bid, pass, double, or redouble in the bidding stage.
Chicago
A form of bridge in which a rubber is completed every four deals, and the vulnerability is different in each of those deals. The scoring and sequence of dealer and vulnerability used in duplicate bridge are derived from those used in Chicago bridge. Chicago is said to have been devised by commuters who played bridge on daily train journeys, where the time available for play was limited by the length of the trip.
CHO
Centre Hand Opponent; a slang term for the partner.
Blue Club is a bridge bidding system, developed mainly by Benito Garozzo. It was used by the famous Blue Team and became very popular in 1960-1970 (nowadays being less and less used).
The Law of Total Tricks pertains to the card game of contract bridge, and is used to help determine how high to bid in a competitive auction. It is not really a law (because counterexamples are easy to find) but it describes a relationship that seems to exist somewhat regularly. Written by Jean-René Vernes for french players in the fifties as a rule of thumb, it was first described in English in a 1969 magazine article.
Canapé is a bridge convention which refers to a system of bidding where the second suit bid is always longer (or at least as long) as the first. With a minimum 5-4 it may be necessary to bid the first suit twice before the short suit. It is often found in European systems such as Blue club. The chief advantage is that with a moderate 2 suiter, you often get to bid a short major, which has marked preemptive value.
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