Support Double
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Support Double
The support double is a bridge convention used to distinguish between three-card and four-card support for partner's suit response to one's opening bid in the scenario where his response is either overcalled or doubled by the opponents. A of two in partner's suit indicates four-card support and a call of double promises three-card support; if partner's suit bid is doubled instead of overcalled, a redouble serves the same meaning as double. The convention was invented by Eric Rodwell in 1974.Rodwell, Eric. NewInBridge - The Topics Collection; Topic 00 - Support Doubles and Redoubles. First published September 15, 2010; revised September 1, 2012. For example, after 1 - (Pass) - 1 - (1) * Double shows three-card heart support * 2 shows four-card heart support * Pass or other bids: fewer than three hearts A support redouble applies when Right Hand Opponent makes a take-out double of the response of one of a major: 1 - (Pass) - 1 - (Double) * Redouble: three-card spade support * 2 ...
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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 o ...
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Bridge Convention
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 as ...
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Eric Rodwell
Eric Victor Rodwell (born May 1, 1957) is an American professional bridge player. He has won the Bermuda Bowl representing the United States five times and is one of ten players who have won the triple crown of bridge: the Bermuda Bowl, the World Open Pairs and the World Team Olympiad. Personal life Rodwell was born in San Francisco, California and his family moved to West Lafayette, Indiana in 1965 where his father was a professor of biochemistry at Purdue University. He started playing bridge at the age of eleven by reading books and playing with his parents. Rodwell graduated from West Lafayette High School in 1974 and attended Purdue, graduating with a master's degree in finance in 1981. Rodwell is currently a full-time bridge professional and lives in Clearwater Beach, Florida with his wife Donna; each has two children from previous marriages, his being twins Jeffrey and Sara (b. 1984). Bridge career For decades Rodwell has been in a regular partnership with Jeff Meckstroth, ...
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Rosenkranz Double
The Rosenkranz double and Rosenkranz redouble are elements of a bridge bidding convention invented by Dr. George Rosenkranz, collectively known as the Rosenkranz double. It is a made by the (partner of the ) in an auction where opener, overcaller and responder have all bid different suits. It is used to describe the advancer's top honor card holdings in the overcaller's suit. Original version The conventions come into play when the auction has started with: (a) an opening bid by the opponents; (b) a direct overcall by partner at the one-level; and (c) a bid or negative double (that is, not a Pass) by the opener's partner, responder. Two cases follow: (1) if responder bids below two of opener's suit, Double by advancer is a raise of the overcall and promises a top honor; (2) if responder doubles, Redouble by advancer has the same meaning. Either way, advancer's natural raise to the two-level denies possession of a top honor in that suit. A top honor is either the Ace, King or Que ...
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Snapdragon Double
The snapdragon double (also known as competitive double, fourth-suit double, or impossible double) is a bidding convention in contract bridge. It is a call of double by fourth hand, when three different suits have been bid by the first three players and shows a good holding in the fourth suit (generally six cards, though some partnerships allow five) and tolerance for partner's suit. The word snapdragon derives from ''Antirrhinum ''Antirrhinum'' is a genus of plants commonly known as dragon flowers, snapdragons and dog flower because of the flowers' fancied resemblance to the face of a dragon that opens and closes its mouth when laterally squeezed. They are native to r ...'', which is a genus of plants commonly known as snapdragons from the flowers' fancied resemblance to the face of a dragon that opens and closes its mouth when laterally squeezed, which as a result produces a snap-like sound. The reason for this designation is that the Snapdragon double can only be triggered ...
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American Contract Bridge League
The American Contract Bridge League (ACBL) is a governing body for contract bridge in the United States, Canada, Mexico, and Bermuda. It is the largest such organization in North America having the stated mission ''"to promote, grow and sustain the game of bridge and serve the bridge-related interests of our Members."'' Its major activities are: * sanctioning games at local bridge clubs and regional events * certifying bridge teachers and club directors * conducting the North American Bridge Championships (NABC) * providing education materials and services * administering the ACBL masterpoints system for tracking player performance * providing oversight for ethical behavior and play *Besides representing the interests of its members with the World Bridge Federation, , it had more than 165,000 members. History The ACBL was created in 1937 by the merger of the American Bridge League and the United States Bridge Association in 1937. At that time, its bridge tournaments were open only ...
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Bridge Ethics
Contract bridge can be a friendly, informal social game, or a highly competitive mind-sport when in formal club or tournament play. The rules require players to conduct themselves ethically and to be courteous at all times. The rules of the game and expectations for ethical play are codified in the official Laws of Duplicate Contract Bridge and its published interpretations; the rules define which actions at the table are and are not permitted and remedies for rule infractions and irregularities. Players are expected to respect the norms of social courtesy and behavior; duplicate bridge sponsoring organizations (clubs, regional, national, zonal and world organizations) can define additional standards for player's conduct, including the penalties for violation of personal conduct such as rudeness and other breaches of discipline not covered by applicable civil laws. Some aspects of the rules may be interpreted more strictly in a high-level tournament than in an informal social game. ...
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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 ...
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Negative Free Bid
Negative free bid is a contract bridge treatment whereby a free bid by responder over an opponent's overcall shows a long suit in a weak hand and is not forcing. This is in contrast with standard treatment, where a free bid can show unlimited values and is unconditionally forcing. The treatment is a relatively recent invention, and has become quite popular, especially in expert circles. Negative free bids resolve relatively frequent situations where the responder holds a long suit with which he would like to compete for a partscore, but is deprived from bidding it by opponent's overcall. Example For example, if South holds: , partner opens 1 and East overcalls 1, he couldn't bid 2 in standard methods, as it would show 10+ high-card points, and a negative double would be too off-shape. With NFB treatment in effect though, he can bid 2 which the partner may pass (unless he has extra values and support, or an excellent suit of its own without tolerance for hearts). However, ...
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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 ...
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