A simple abstract game played on a 5x5 board (minus the corners.) The board has a 3x3 area in the middle with the numbers 1 through 9, plus 3 blank spaces adjoining each side of the board. The object of the game is to reach all 9 numbers by creating 'matrixes'. Each player has 2 pieces which are placed one at a time on the bank spaces on the outside edge of the board. Each player also has a list with the numbers 1 through 9 written on it. On a player's turn, he moves his pieces 3 to 5 spaces along the outside of the board, trying to form an intersection with a number. Each time the player forms an intersection with a number, he marks it off his list. The first player to mark all 9 numbers of his list wins.http://www.printgames.net/english/matrix/detail_e.htm - BoardGameGeek