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  2. Professional shogi player - Wikipedia

    en.wikipedia.org/wiki/Professional_shogi_player

    Shōji Segawa was unable to gain promotion to 4-dan professional before turning 26 in 1996, and thus was required to withdraw from the JSA's apprentice school. Segawa continued to play shogi as an amateur and won a number of national amateur tournaments which allowed him to qualify for tournaments involving professionals.

  3. Japan Shogi Association - Wikipedia

    en.wikipedia.org/wiki/Japan_Shogi_Association

    The Japan Shogi Association (日本将棋連盟, Nihon Shōgi Renmei), or JSA, [a] is the primary organizing body for professional shogi in Japan. [5] [6] The JSA sets the professional calendar, negotiates sponsorship and media promotion deals, helps organize tournaments and title matches, publishes shogi-related materials, supervises and trains apprentice professionals as well as many other ...

  4. Threefold repetition - Wikipedia

    en.wikipedia.org/wiki/Threefold_repetition

    The rule has been variously formulated at different times in chess history. In Tim Harding 's MegaCorr database (a collection of correspondence chess games), the notes to a game between the cities of Pest and Paris played between 1842 and 1845 state that a sixfold repetition was necessary to claim a draw.

  5. Shogi variant - Wikipedia

    en.wikipedia.org/wiki/Shogi_variant

    A shogi variant is a game related to or derived from shogi (Japanese chess). Many shogi variants have been developed over the centuries, ranging from some of the largest chess-type games ever played to some of the smallest. A few of these variants are still regularly played, though none are as popular as shogi itself.

  6. Chess rating system - Wikipedia

    en.wikipedia.org/wiki/Chess_rating_system

    1948 – The Ingo system is published and used by the West German Chess Federation. 1949 – The Harkness system is submitted to the USCF. The British Chess Federation adopts it later and uses it at least as late as 1967. [22] 1950 – The USCF starts using the Harkness system and publishes its first rating list in the November issue of Chess Life.

  7. Chess with different armies - Wikipedia

    en.wikipedia.org/wiki/Chess_with_different_armies

    Chess with different armies (or Betza's Chess [1] or Equal Armies [2]) is a chess variant invented by Ralph Betza in 1979. Two sides use different sets of fairy pieces . There are several armies of equal strength to choose from, including the standard FIDE army.

  8. Performance rating (chess) - Wikipedia

    en.wikipedia.org/wiki/Performance_rating_(chess)

    A norm in chess is awarded if a player has a performance rating in a tournament at or above a threshold rating. As an example, for the Grandmaster (GM) title, a player must achieve three GM norms corresponding to performance ratings of at least 2600 against opponents with an average rating of 2380 and must also have reached a required peak live ...

  9. Draw by agreement - Wikipedia

    en.wikipedia.org/wiki/Draw_by_agreement

    A game of chess can end in a draw by agreement.A player may offer a draw at any stage of a game; if the opponent accepts, the game is a draw. [1] In some competitions, draws by agreement are restricted; for example draw offers may be subject to the discretion of the arbiter, or may be forbidden before move 30 or 40, or even forbidden altogether.