If you love to play the Colorku Game, then you will love the new Tic-Tac-Ku Game from Mad Cave Bird Games! A new adaptation of the classic tic-tac-toe game, Tic-Tac-Ku Game is the durable wooden game that is full of strategy that really makes you use your marbles in every sense! The Tic-Tac-Ku Game is played on a 9-3x3 square board, where the play of one player dictates where the next player must place his or her marble. So in the Tic-Tac-Ku Game, if the first player places a marble in the center spot of one of the 9 squares, the other player must place their marble in a center spot in another playing square. While this game play might sound easy, the Tic-Tac-Ku Game involves a lot of skill and strategy in order to win. The first player to win 5 or the majority of the squares is the winner! So, if you thought tic-tac-toe was an easy game, then the Tic-Tac-Ku Game from Mad Cave Bird Games is about to change your perception! Includes a wooden playing board that measures 13.5 x 13.5 and 81 red and white marbles. For 2-4 players.