Super Tic-Tac-Toe is a more complex version of the classic tic-tac-toe. The game is played on a 3x3 grid (the Parent Grid), with each cell containing a smaller 3x3 grid (a Child Grid). The objective is the same as regular tic-tac-toe: players aim to win three Parent Grid cells in a row horizontally, vertically, or diagonally. To win a Parent Grid cell you must win the Child Grid inside of that cell.

The most complicated part of Super Tic-Tac-Toe is determining where you can place your move. The first player may place their move wherever they like. The next player must place their move in the Parent Grid cell that corresponds with the Child Grid cell that the prior player placed their move. For example, if the first player placed their first move in the center cell of the top right Child Grid then the next player would have to place their move in the center Child Grid. If the first move was in the left center cell of the centermost Child Grid then the next player would have to place their move in the left center Child Grid. If the corresponding Child Grid is already won or full then the player can make their move in any empty cell of any unclaimed Child Grid.

If on a touch screen you may long press a Parent Grid cell to make that cell fullscreen. The game will handle all of the rules for you so if you just jump in you should pick it up in no time!