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  2. Wheat and chessboard problem - Wikipedia

    en.wikipedia.org/wiki/Wheat_and_chessboard_problem

    The number of grains of wheat on the second half of the chessboard is 2 32 + 2 33 + 2 34 + ... + 2 63, for a total of 2 64 − 2 32 grains. This is equal to the square of the number of grains on the first half of the board, plus itself. The first square of the second half alone contains one more grain than the entire first half.

  3. Chessboard - Wikipedia

    en.wikipedia.org/wiki/Chessboard

    Each square of the board is named using algebraic, descriptive, or numeric chess notation; algebraic notation is the FIDE standard. In algebraic notation, using White's perspective, files are labeled a through h from left to right, and ranks are labeled 1 through 8 from bottom to top; each square is identified by the file and rank which it ...

  4. Chess - Wikipedia

    en.wikipedia.org/wiki/Chess

    Chess is an abstract strategy board game for two players which involves no hidden information and no elements of chance.It is played on a square game board called a chessboard containing 64 squares arranged in an 8×8 grid.

  5. Grid chess - Wikipedia

    en.wikipedia.org/wiki/Grid_chess

    Grid chess sample position. Grid chess is a chess variant invented by Walter Stead in 1953. [1] It is played on a grid board. This is a normal 64-square chessboard with a grid of lines further dividing it into larger squares. A single additional rule governs Grid chess: for a move to be legal, the piece moved must cross at least one grid line.

  6. Checkerboard - Wikipedia

    en.wikipedia.org/wiki/Checkerboard

    Most commonly, it consists of 64 squares (8×8) of alternating dark and light color, typically green and buff (official tournaments), black and red (consumer commercial), or black and white (printed diagrams). An 8×8 checkerboard is used to play many other games, including chess, whereby it is known as a chessboard. Other rectangular square ...

  7. Rules of chess - Wikipedia

    en.wikipedia.org/wiki/Rules_of_chess

    Chess is played on a chessboard, a square board divided into a grid of 64 squares (eight-by-eight) of alternating color (similar to the board used in draughts). [1] Regardless of the actual colors of the board, the lighter-colored squares are called "light" or "white", and the darker-colored squares are called "dark" or "black".