Zar Points
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Zar Points
Zar Points (ZP) is a statistically derived method for evaluating contract bridge hands developed by Zar Petkov. The statistical research Petkov conducted in the areas of hand evaluation and bidding is useful to bridge players, regardless of their bidding or hand evaluation system. The research showed that the Milton Work point count method, even when adjusted for distribution, is not sufficiently accurate in evaluating all hands. As a result, players often make incorrect or sub-optimal bids. Zar Points are designed to take many additional factors into consideration by assigning points to each factor based on statistical weight. While most of these factors are already implicitly taken into account by experienced players, Zar Points provides a quantitative method that allows them to be incorporated into bidding. Zar Points Zar Points (ZP) are based on high card points, distributional points and adjustments for suit fits. Zar high card points Zar high card points (ZHP) are the sum of ...
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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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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), the ...
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Milton Work
Milton Cooper Work (September 15, 1864 – June 27, 1934) was an American authority on whist, bridge whist, auction and contract bridge. At least during the 19th century he was a cricket player, writer, and official. Work, Sidney Lenz, and Oswald Jacoby were named to its bridge hall of fame by ''The Bridge World'' monthly magazine in 1965, which brought the number of members to six. They were all made founding members of the ACBL Hall of Fame in 1995."Induction by Year"
''Hall of Fame''. ACBL. Retrieved 2014-12-29.


Life

Work was born in , Pennsylvania, where he graduated from the

Charles Goren
Charles Henry Goren (March 4, 1901 – April 3, 1991) was an American bridge player and writer who significantly developed and popularized the game. He was the leading American bridge personality in the 1950s and 1960s – or 1940s and 1950s, as "Mr. Bridge" – as Ely Culbertson had been in the 1930s. Culbertson, Goren, and Harold Vanderbilt were the three people named when ''The Bridge World'' inaugurated a bridge "hall of fame" in 1964 and they were made founding members of the ACBL Hall of Fame in 1995. According to ''New York Times'' bridge columnist Alan Truscott, more than 10 million copies of Goren's books were sold. Among them, ''Point-Count Bidding'' (1949) "pushed the great mass of bridge players into abandoning Ely Culbertson's clumsy and inaccurate honor-trick method of valuation." Goren's widely syndicated newspaper column "Goren on Bridge" first appeared in the Chicago Tribune August 30 1944, p.15. Early years Goren was born in Philadelphia, Pennsylvania, to Rus ...
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Matchpoint Scoring
While a deal of bridge is always played following a unique set of rules, its scoring may vary depending on the type of event the deal is played on. There are two main categories of scoring: rubber and duplicate. Rubber scoring, and its popular variant Chicago, are mostly used in social play. Duplicate scoring is focused on tournament competition and has many variations that compare and rank the relative performance of partnerships and teams playing the same deals as their competitors. Terminology The following terms and concepts, defined in the glossary of contract bridge terms, are essential to understanding bridge scoring: * * * * * or Made * * * and grand slam * *Undoubled, and *, and Scoring elements Bridge scoring consists of nine elements. Not all elements are included in all game variants and the method of accumulation of the elements over several deals varies. * If the contract is made, the score for each such deal consists of: ** Contract points, assigned to ea ...
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Standard American
Standard American is a bidding system for the game of bridge widely used in North America and elsewhere. Owing to the popularization of the game by Charles Goren in the 1940s and 1950s, its early versions were sometimes referred to simply as 'Goren'. With the addition and evolution of various and , it is now more generally referred to as Standard American. It is a bidding system based on five-card majors and a strong notrump; players may add conventions and refine the meanings of bids through partnership agreements summarized in their . One standardised version, SAYC (Standard American Yellow Card), is widely used by casual partnerships and in online bridge. Role of bidding systems The purpose of bidding during the auction phase of each deal is to disclose information which one's partner may employ in order to arrive at an optimal contract while concurrently contending with the opponents' attempts to do likewise. A bidding system is a set of agreements about the meanings of t ...
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Precision Club
Precision Club is a bidding system in the game of contract bridge. It is a strong club system developed in 1969 for C. C. Wei by Alan Truscott, and used by Taiwan teams in 1969. Their success in placing second at the 1969 Bermuda Bowl (and Wei's multimillion-dollar publicity campaign) launched the system's popularity. The central feature of the Precision system is that an opening bid of one club is used for any hand with 16 or more high card points (HCP), regardless of distribution. An opening bid of one of a major suit signifies a five-card suit and 11–15 HCP. A one notrump opening bid signifies a balanced hand (no five-card major suit) and 13–15 HCP. Popularity After the success of Taiwan teams in 1969 and 1970 Bermuda Bowls with the system, the entire Italian Blue team switched to Precision Club and won yet another World Team Olympiad in 1972. The modifications to the system were made chiefly by Benito Garozzo and he titled it Super Precision. Today, multiple world ch ...
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