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Where there is competitive bidding (i.e. both sides are bidding) the extra dimension of sacrificial bidding is added, and the theoretical optimum contract can be overtaken by the par contract. The par contract on a deal is that contract that results from optimal bidding by both sides and that neither side could improve by further bidding. It ...
This is a list of bidding systems used in contract bridge. [1] [2] Systems listed have either had an historical impact on the development of bidding in the game or have been or are currently being used at the national or international levels of competition. Bidding systems are characterized as belonging to one of two broadly defined categories:
The act of determining the distribution of cards in unseen hands, and the location of high cards therein, by analyzing the bidding, play and other clues. Carding The defensive signaling used by a partnership. Carryover, or carry-over In a complex event, some participants begin a later stage with scores that depend on performance in an earlier ...
The vocabulary of bidding is limited to 38 different calls - 35 level/denomination bids [1] plus pass, double and redouble. Any bid becomes a contract if followed by three successive passes, therefore every bridge bid is a potential contract. By the rules of the game, the agreed meanings of all calls must be public and known to the opponents ...
South has shown 16-18 total points, while North's hand is largely unknown. North's bid of 4 ♣ is a cue-bid showing first-round control of clubs and an interest in slam. After South's bid of 4 ♦ North bids 4 ♥, an apparent signoff. It may well be that North wants to bid a slam, but has two fast losers in the spade suit.
The penalty for a 1S opening was capped at -100, even if it went 7 off doubled; the bid was treated as forcing though. [jargon] In UK Auction Bridge, as it was a gambling game, bids were ranked by point value of the contract then level. [7] So, 1 ♥ (8 points) beats 3 ♠ (6 points) but 4 ♠ (8 points) beats 1 ♥ (8 points) because it is a ...
The Grand Slam Force is a bidding convention in contract bridge that was developed by Ely Culbertson in 1936. [1] It is intended to be used in cases where the combined hands of a partnership are so strong that a slam (winning at least 12 tricks) is a near-certainty and a grand slam (winning all 13 tricks) is a possibility.
An EHAA two-bid shows six to twelve high card points, and a five card or longer suit.There are no restrictions on suit quality (xxxxx and AKQJxxxx both qualify). EHAA bidders use a "get in quick, get out quick" style, which permits interference or an opening bid in nearly every auction, protected by fairly strict requirements on further bids by the partnership.