Simple to learn, challenging to play! Great for developing geometric knowledge and strategic thinking. A no-preparation paper-and-pencil game suitable for school children and thought-provoking even for adults! The game is played on a board that consists of a 4 x 4 array of dots. The object of the game is to make squares by claiming the dots that mark their four corners. You can include one dot that another player has claimed to make your square, but you must be the one who claims the 4th dot and you also must have claimed at least 2 of the dots at the other corners.