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Swiss system

  • Last updated on 8/1/07, 6:17 AM.

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Pairing system invented by Dr. J. Muller of Brugg, Switzerland, and first used in a chess  tournament at Zurich in 1895.  George Koltanowski introduced the Swiss System in the United States.  The first use of the Swiss system in the United States was the Texas Championship in 1942.  The first national event to use the Swiss system was the 1945 U.S. Intercollegiate Championship followed by the 1947 U.S. Open in Corpus Christi.   Since 1947 every U.S. Open has been conducted under the Swiss System.  The first Swiss System Olympiad was Buenos Aires in 1978.

Comments


  • 4 years ago · Quote · #1

    Royalchex

    I can see this history about the Swiss Sytem, but what is it in detail???

  • 4 years ago · Quote · #2

    iainauch

    I, too, would like to know how it works.

  • 3 years ago · Quote · #3

    stubborn_d0nkey

    google is  your friend

    The first round is either drawn at random or seeded according to some prior order, such as rating or last year's performance. Players who win receive a point, those who draw receive half a point and players that lose receive no points. Win, lose, or draw, all players proceed to the next round where winners are pitted against winners, losers are pitted against losers, and so on. In subsequent rounds, players face opponents with the same (or almost the same) score. No player is paired up against the same opponent twice however. In chess it is also attempted to ensure that each player plays an equal number of games with white and black, alternate colors in each round being the most preferable, and a concerted effort is made not to assign the same color three times in a row.

    The basic rule is that players with the same score are ranked according to rating. Then the top half is paired with the bottom half. For instance, if there are eight players in a score group, number 1 is paired with number 5, number 2 is paired with number 6 and so on. Modifications are then made to balance colors and prevent players from meeting each other twice.

    The detailed rules of how to do the pairing are usually quite complicated and often the tournament organizer has access to a computer to do the pairing. If the rules are strictly adhered to, the organizer has no discretion in pairing the round. See the link below for detailed pairing rules from FIDE. 
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