Dots and boxes (also known as Boxes,
Squares, Paddocks, Pigs in a Pen,Square-it, Dots and Dashes, Dots, Line Game, Smart Dots, Dot Boxing, or, simply, the Dot Game) is a pencil and paper game for two players.
The game is first published in 1889 by
Starting with an empty grid of dots,
players take turns, adding a single horizontal or vertical line between two unjoined adjacent dots.
A player who completes the fourth side
of a 1×1 box earns one point and takes another turn.
The points are typically recorded by
placing in the box an identifying mark of the player, such as an initial.
The game ends when no more lines can be
placed. The winner of the game is the player with the most points.
The board may be of any size. When short
on time, 2×2 boxes (created by a square of 9 dots) is good for beginners, and 5×5 is good for experts.
The diagram above shows a game played on
the 2×2 board, where player A wins against player B, 3-1.