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  2. Chess clock - Wikipedia

    en.wikipedia.org/wiki/Chess_clock

    An analog chess clock. A chess clock is a device that comprises two adjacent clocks with buttons to stop one clock while starting the other, so that the two clocks never run simultaneously. The clocks are used in games where the time is allocated between two parties. The purpose is to keep track of the total time each party takes and prevent ...

  3. Leaf blower - Wikipedia

    en.wikipedia.org/wiki/Leaf_blower

    The new NiCad battery-powered leaf blower designs were further improved by way of the more powerful, and longer run time lithium-ion batteries, which incorporate most cordless leaf blowers marketed today. Cordless leaf blowers today operate with zero emissions and operate at an estimated 70% noise reduction (compared to levels produced by their ...

  4. Chess equipment - Wikipedia

    en.wikipedia.org/wiki/Chess_equipment

    Chess equipment are the tangible items required to play a game of chess. To have an over-the-board (OTB) chess tournament the equipment required includes: chess pieces, chessboard, chess clock, score sheets, pen to record the moves and table. [1] A chess player playing a game of online chess, correspondence chess, computer chess or

  5. Mechanical Turk - Wikipedia

    en.wikipedia.org/wiki/Mechanical_Turk

    The most important biographical history about the Chess-player and Mälzel was presented in The Book of the First American Chess Congress, published by Daniel Willard Fiske in 1857. [59] The account, "The Automaton Chess-Player in America", was written by Professor George Allen of Philadelphia, in the form of a letter to William Lewis, one of ...

  6. Chess set - Wikipedia

    en.wikipedia.org/wiki/Chess_set

    Chess boxes, chess clocks, and chess tables are common pieces of chess equipment used alongside chess sets. Chess sets are made in a wide variety of styles, sometimes for ornamental rather than practical purposes. For tournament play, the Staunton chess set is preferred and, in some cases, required. Human chess uses people as the pieces.

  7. MonRoi - Wikipedia

    en.wikipedia.org/wiki/MonRoi

    The MonRoi system has been approved for use by FIDE [citation needed], the European Chess Union [citation needed] and the United States Chess Federation. [ 2 ] The MonRoi system was invented and patented by Brana Malobabic-Giancristofaro , an electrical engineer whose credentials include developing new technologies at Nortel Networks .

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