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  2. List of gridiron football rules - Wikipedia

    en.wikipedia.org/.../List_of_gridiron_football_rules

    Two rows of short lines, known as inbounds lines or hash marks, run at 1-yard (91.4 cm) intervals perpendicular to the sidelines near the middle of the field. All plays start with the ball on or between the hash marks. Because of the arrangement of the lines, the field is occasionally referred to as a gridiron.

  3. Nine dots puzzle - Wikipedia

    en.wikipedia.org/wiki/Nine_dots_puzzle

    The puzzle asks to link all nine dots using four straight lines or fewer, without lifting the pen. The nine dots puzzle is a mathematical puzzle whose task is to connect nine squarely arranged points with a pen by four (or fewer) straight lines without lifting the pen. The puzzle has appeared under various other names over the years.

  4. Rule of thirds - Wikipedia

    en.wikipedia.org/wiki/Rule_of_thirds

    The rule of thirds is a "rule of thumb" for composing visual images such as designs, films, paintings, and photographs. [3] The guideline proposes that an image should be imagined as divided into nine equal parts by two equally spaced horizontal lines and two equally spaced vertical lines, and that important compositional elements should be ...

  5. Tic-tac-toe - Wikipedia

    en.wikipedia.org/wiki/Tic-tac-toe

    Tic-tac-toe ( American English ), noughts and crosses ( Commonwealth English ), or Xs and Os ( Canadian or Irish English) is a paper-and-pencil game for two players who take turns marking the spaces in a three-by-three grid with X or O. The player who succeeds in placing three of their marks in a horizontal, vertical, or diagonal row is the winner.

  6. Dots and boxes - Wikipedia

    en.wikipedia.org/wiki/Dots_and_Boxes

    A game of dots and boxes. Dots and boxes is a pencil-and-paper game for two players (sometimes more). It was first published in the 19th century by French mathematician Édouard Lucas, who called it la pipopipette. [1] It has gone by many other names, [2] including dots and dashes, game of dots, [3] dot to dot grid, [4] boxes, [5] and pigs in a ...

  7. Rules of Go - Wikipedia

    en.wikipedia.org/wiki/Rules_of_Go

    Players: Go is a game between two players, called Black and White. Rule 2. [8] Board: Go is played on a plain grid of 19 horizontal and 19 vertical lines, called a board . Definition. ("Intersection", "Adjacent") A point on the board where a horizontal line meets a vertical line is called an intersection.

  8. Ruled paper - Wikipedia

    en.wikipedia.org/wiki/Ruled_paper

    Ruled paper (or lined paper) is writing paper printed with lines as a guide for handwriting. The lines often are printed with fine width and in light colour and such paper is sometimes called feint-ruled paper. Additional vertical lines may provide margins, act as tab stops or create a grid for plotting data; for example, graph paper ( squared ...

  9. Connect Four - Wikipedia

    en.wikipedia.org/wiki/Connect_Four

    6+. Connect Four (also known as Connect 4, Four Up, Plot Four, Find Four, Captain's Mistress, Four in a Row, Drop Four, and Gravitrips in the Soviet Union) is a game in which the players choose a color and then take turns dropping colored tokens into a six-row, seven-column vertically suspended grid. The pieces fall straight down, occupying the ...