USER MANUAL
Welcome to Ultimate Tic-Tac-Toe. Just like in 'regular' Tic-Tac-Toe, the aim is for you to make three in a row either of X or O, taking turns with an opponent (human or AI).
As always, X goes first.
However, in this version, you need to win a 3x3 'subgame' to place the actual X/O! This smaller game is won just like the original - 3 in a row.
The game starts with an empty board, and placing in any of the nine cells of an individual subgame,
moves the whole game to that block:
This ensures that the next player plays in the respective subgame, before they play their turn and move the subgame again.
As mentioned before, making 3 in a row wins you a subgame, and automatically turns that cell into a big X/O:
If someone places in a cell that would take the next player to a subgame that has already been won, they are free to play anywhere
(that isn't occupied) on the board.
The game is completed once someone manages to not only win many subgames, but strategically choose ones that are three in a row.
Good luck! :)