The object of the game is to fill a 9x9 grid with colored balls so that every row and column have a ball of each color with no repeats and each 3x3 grid has a a ball of each color with no repeats. The puzzles start with a partially completed grid and the players must fill in the rest.

The Tic-Tac-Ku Game is played on the same 9x9 square board as ColorKu, except with only two different colored marbles. The play of one player dictates the square in which the next player must play his or her marble. If the first player places decides to play their marble in the top left hole of the bottom right box, the second player must play their marble in any of the open holes in the top left box. Say the second player decides to play in the top right hole of that box, then the second player would now need to play a marble in one of the open holes in the top right box. The first player to get three marbles in a row in a given square wins that square (noted by placing a ring over one of that player's marbles in the given square). The first player to win 5 (or the majority) of the squares is the winner!

If there is a packaging error, and you received too few marbles or cards, please let us know and we will be happy to send the needed items. Unfortunatley, due to shipping costs, we cannot provide free marbles or cards if they are lost. Replacement marbles and cards are available for purchase in the shop. If you make an additional purchase (e.g. puzzle card expansion set), and also need a few additional marbles, we can likely include them for free in the new shipment, just send us an email at info@colorku.com!