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Takeout Double
In the card game contract bridge, a takeout double is a low-level conventional call of "Double" over an opponent's bid as a request for partner to bid his best of the unbid suits. The most common takeout double is after an opponent's opening bid of one of a suit where the double shows a hand with opening values, support for all three unbid suits (at least three cards in each) and shortness in the suit doubled (preferably, no more than two). Normally, the partner of the doubler must bid his best suit but may pass if (a) his right hand opponent intervenes or (b) on the more rare occasions when his hand is such that he wishes to convert the takeout double to a . Requirements Commonly a double is considered for takeout whenever one of the following conditions is met (but see balancing double below): *Opponents have previously bid only one suit, and the player did not have chance to double that suit before. *Opponents have previously bid two suits, and partner has passed. *Opponents ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contract Bridge
Contract bridge, or simply bridge, is a trick-taking card game using a standard 52-card deck. In its basic format, it is played by four players in two competing partnerships, with partners sitting opposite each other around a table. Millions of people play bridge worldwide in clubs, tournaments, online and with friends at home, making it one of the world's most popular card games, particularly among seniors. The World Bridge Federation (WBF) is the governing body for international competitive bridge, with numerous other bodies governing it at the regional level. The game consists of a number of , each progressing through four phases. The cards are dealt to the players; then the players ''call'' (or ''bid'') in an auction seeking to take the , specifying how many tricks the partnership receiving the contract (the declaring side) needs to take to receive points for the deal. During the auction, partners use their bids to also exchange information about their hands, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convention (bridge)
A bridge convention is an agreement about an artificial or a set of related artificial calls. Calls made during the auction phase of a contract bridge game convey information about the player's card holdings. Calls may be "natural" (that is, are based on a holding of the suit bid, or a balanced distribution in the case of a notrump bid) or "" (show a feature unrelated to the named denomination). Purpose Contract bridge is a trick-taking card game played by four players in two competing partnerships in which a sequence of , also known as the auction, precedes the play of the cards. The purpose of this bidding is for players to inform their partners of the content of their hand and to arrive at a suitable contract at which to play the hand (or to prevent the opponents from arriving at a suitable contract). Although bidding is often "natural" (describing a hand by simple reference to possession, shape, and strength of the named suit), players may also bid using conventions, which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balancing (protective) Doubles
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Balancing may refer to: * Balancing (international relations) * Balancing and deranking, in grammar the use in subordinate clauses of verb forms identical to those in main clauses * Balancing (bridge), a term in contract bridge * Battery balancing, a technique that improves the available capacity of a battery pack with multiple cells * "Balancing" (''Brooklyn Nine-Nine''), an episode of the eighth season of ''Brooklyn Nine-Nine'' * "Balancing", an episode of the television series ''Teletubbies'' See also * Balance (other) * Load balancing (other) Load balancing or load distribution may refer to: *Load balancing (computing), balancing a workload among multiple computer devices *Load balancing (electrical power), the storing of excess electrical power by power stations during low demand period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hand Evaluation
In contract bridge, various bidding systems have been devised to enable partners to describe their hands to each other so that they may reach the optimum contract. Key to this process is that players evaluate and re-evaluate the trick-taking potential of their hands as the auction proceeds and additional information about partner's hand and the opponent's hands becomes available. Hand evaluation methods assess various features of a hand, including: its high card strength, shape or suit , , fit with partner, quality of suits and quality of the whole hand. The methods range from basic to complex, requiring partners to have the same understandings and agreements about their application in their bidding system. Basic point-count system Most bidding systems use a basic point-count system for hand evaluation using a combination of high card points and distributional points, as follows. High card points First published in 1915 by Bryant McCampbell in ''Auction Tactics'' (page 26), th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preempt
Preempt (also spelled "pre-empt") is a bid in contract bridge whose primary objectives are (1) to thwart opponents' ability to bid to their best contract, with some safety, and (2) to fully describe one's hand to one's partner in a single bid. A preemptive bid is usually made by ''jumping'', i.e. skipping one or more bidding levels. Since it deprives the opponents of the bidding space, it is expected that they will either find a wrong contract (too high or in a wrong denomination) of their own, or fail to find any. A preemptive bid often has the aim of a ''save'', where a partnership bids a contract knowing it cannot be made, but assumes that (even when doubled), the penalty will still be smaller than the value of opponents' bid and made contract. Scoring context The tables at right help to illustrate the limits of the scoring advantage to be gained in duplicate bridge by preempting or sacrificing when the opponents may be successful in making a game contract. The level to w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protective And Balancing Doubles
Protection is any measure taken to guard a thing against damage caused by outside forces. Protection can be provided to physical objects, including organisms, to systems, and to intangible things like civil and political rights. Although the mechanisms for providing protection vary widely, the basic meaning of the term remains the same. This is illustrated by an explanation found in a manual on electrical wiring: Some kind of protection is a characteristic of all life, as living things have evolved at least some protective mechanisms to counter damaging environmental phenomena, such as ultraviolet light. Biological membranes such as bark on trees and skin on animals offer protection from various threats, with skin playing a key role in protecting organisms against pathogens and excessive water loss. Additional structures like scales and hair offer further protection from the elements and from predators, with some animals having features such as spines or camouflage servi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Contract Bridge Terms
These terms are used in contract bridge, using duplicate or rubber scoring. Some of them are also used in whist, bid whist, the obsolete game auction bridge, and other trick-taking games. This glossary supplements the Glossary of card game terms. : ''In the following entries,'' boldface links ''are external to the glossary and'' plain links ''reference other glossary entries.'' 0–9 ;: A mnemonic for the original (Roman) response structure to the Roman Key Card Blackwood convention. It represents "3 or 0" and "1 or 4", meaning that the lowest step response (5) to the 4NT key card asking bid shows responder has three or zero keycards and the next step (5) shows one or four. ;: A mnemonic for a variant response structure to the Roman Key Card Blackwood convention. It represents "1 or 4" and "3 or 0", meaning that the lowest step response (5) to the 4NT key card asking bid shows responder has one or four keycards and the next step (5) shows three or zero. ;1RF: One round fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Negative Double
The negative double is a form of takeout double in bridge. It is made by the responder after their right-hand opponent overcalls on the first round of bidding, and is used to show shortness in overcall's suit, support for the unbid suits with emphasis on majors, as well as some values. It is treated as forcing, but not unconditionally so. In practice, the negative double is sometimes used as a sort of catch-all, made when no other call properly describes responder's hand. Therefore, a partnership might even treat the negative double as a wide-ranging call that merely shows some values. Usage Using the modern negative double convention, it is understood that a double over an initial overcall is conventional, and ''not'' for penalties (but see Playing for penalties). For example, using this convention, the following doubles would be regarded as negative, not for penalty: *1 – (1) – Dbl *1m – (1M) – Dbl *1 – (1) – Dbl *1M – (2m) – Dbl In understandings regarding nega ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balancing (bridge)
In the game of contract bridge, balancing (or protection in Britain) refers to making a call other than Pass when passing would result in the opponents playing at a low level. Balancing is done by the player in the ''balancing position'', i.e. to the right of the player making the last non-pass call. This is in contrast to bidding in the ''direct position'', i.e. by the player to the left. Balancing is normally done with values unsuitable for direct action, but only after the opponents' bidding has demonstrated weakness or minimal strength. The aim of the tactic is to find a makeable or nearly-makeable contract for one's own side or to "push" opponents a level higher. It is more common in matchpoint games, where even a defeat and loss of 100 points is a relatively better result than the opponents' gain of 110-140 points. Examples After an opening bid is passed by responder Balancing situation result from sequences like: Note that a Pass in this ''balancing position'' would resu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inverted Minors
Inverted minors refers to a treatment introduced by the Kaplan–Sheinwold (K–S) bidding system for the popular card game bridge. The original structure of Precision, another bidding system, also employed inverted minors over a 1 opening. However, the treatment is no longer restricted to users of these bidding systems. although partnerships that use a Short club system (where a 1 opener might only have 2 clubs) tend also to use the convention only after a 1 opener. Description The traditional approach in Standard American and Acol, for example, is for a single raise of a minor suit opening to show a weak supporting hand and a double raise as showing a stronger hand of limit raise strength. Using the inverted minor treatment, a single raise of opener's minor suit is strong (usually at least 10 HCP) and a double raise is pre-emptive showing less than 7HCP (which leaves a small gap of 8-9 HCP where judgement is needed on whether to upgrade, downgrade or make a different bid). The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duplicate Bridge
Duplicate bridge is a variation of contract bridge where the same set of bridge deals (i.e. the distribution of the 52 cards among the four hands) are played by different competitors, and scoring is based on relative performance. In this way, every hand, whether strong or weak, is played in competition with others playing identical cards, and the element of skill is heightened while that of chance is reduced. This stands in contrast to Bridge played without duplication, where each hand is freshly dealt and where scores may be more affected by chance in the short run. Four-way card holders known as Bridge boards are used to enable each player's hand to be preserved from table to table, and final scores are calculated by comparing each pair's result with others who played the same hand. In duplicate bridge, players normally play all the hands with the same partner, and compete either as a partnership (in a 'Pairs tournament') or on a team with one or more other partnerships ('Te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
