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  2. Shannon number - Wikipedia

    en.wikipedia.org/wiki/Shannon_number

    Claude Shannon. The Shannon number, named after the American mathematician Claude Shannon, is a conservative lower bound of the game-tree complexity of chess of 10 120, based on an average of about 10 3 possibilities for a pair of moves consisting of a move for White followed by a move for Black, and a typical game lasting about 40 such pairs of moves.

  3. Pawn promotion would soon follow. On 3 December 2021, in the sixth game of the World Chess Championship 2021, the defending world champion Magnus Carlsen (as White) defeated the challenger Ian Nepomniachtchi in 136 moves, which made it the longest game in the history of the World Chess Championship. [ 1] The game was played in 7 hours and 45 ...

  4. Barnes Opening - Wikipedia

    en.wikipedia.org/wiki/Barnes_Opening

    The Barnes Opening (sometimes called Gedult's Opening) is a chess opening where White opens with: . 1. f3. The opening is named after Thomas Wilson Barnes (1825–1874), an English player who had an impressive [1] eight wins over Paul Morphy, including one game where Barnes answered 1.e4 with 1...f6, known as the Barnes Defence.

  5. Play Chess Online for Free - AOL.com

    www.aol.com/games/play/masque-publishing/chess

    Chess. Play free chess online against the computer or challenge another player to a multiplayer board game. With rated play, chat, tutorials, and computer opponents from beginner to expert! By ...

  6. Algebraic notation (chess) - Wikipedia

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

    Algebraic notation is the standard method for recording and describing the moves in a game of chess. It is based on a system of coordinates to uniquely identify each square on the board. [ 1 ] It is now almost universally used by books, magazines, newspapers and software, and is the only form of notation recognized by FIDE, the international ...

  7. Fischer random chess - Wikipedia

    en.wikipedia.org/wiki/Fischer_random_chess

    This requires choosing a number randomly between 0 and 959 inclusive; this number is then used as an index to the Fischer random chess numbering scheme. In 1998, Ingo Althöfer proposed a method that requires only a single standard die. [11] [12] (Re-roll if needed to get values in the range 1–4 or 1–5).

  8. Nick de Firmian - Wikipedia

    en.wikipedia.org/wiki/Nick_de_Firmian

    De Firmian is a noted expert on chess openings and in 1990 he revised Modern Chess Openings, 13th edition (MCO-13). In 1999 he wrote the 14th edition of Modern Chess Openings (MCO-14), which, along with Nunn's Chess Openings (NCO), is considered an outstanding single volume opening reference in English.

  9. Free Internet Chess Server - Wikipedia

    en.wikipedia.org/wiki/Free_Internet_Chess_Server

    Free Internet Chess Server. A chess game on FICS using an interface named Jin. The Free Internet Chess Server (FICS) is a volunteer-run Internet chess server. It was organised as a free alternative to the Internet Chess Club (ICC), after that site began charging for membership. [1]