This is because of the complicated game branching in this game. Super tic-tac-toe is significantly more complex than most other variations of tic-tac-toe, as there is no clear strategy to playing. Game play ends when either a player wins the larger board or there are no legal moves remaining, in which case the game is a draw. If a player is sent to such a board, then that player may play in any other board. Once a small board is won by a player or it is filled completely, no more moves may be played in that board. If a move is played so that it is to win a small board by the rules of normal tic-tac-toe, then the entire small board is marked as won by the player in the larger board. Playing any of the available spots decides in which small board the next player plays. For example, if X plays in the top right square of a small (3 × 3) board, then O has to play in the small board located at the top right of the larger board. Next the opponent plays, however they are forced to play in the small board indicated by the relative location of the previous move. The game starts with X playing wherever they want in any of the 81 empty spots. Just like in regular tic-tac-toe the two players (X and O) take turns, starting with X. Compared to traditional tic-tac-toe, strategy in this game is conceptually more difficult and has proven more challenging for computers. Players take turns playing on the smaller tic-tac-toe boards until one of them wins on the larger board. Ultimate tic-tac-toe (also known as super tic-tac-toe, meta tic-tac-toe or (tic-tac-toe)² ) is a board game composed of nine tic-tac-toe boards arranged in a 3 × 3 grid. Since X played in the top-right corner of the small board, O is forced to play their next move in the top-right small board of the larger board (highlighted in red).

The previous move was O playing in the center square of the bottom-right board, forcing X to play their next move in smaller board located in the center of the larger board (highlighted in blue). Incomplete super tic-tac-toe game (the large 'X's and 'O's represent small boards that are won by that player).

Does anyone own tic tac toe game