Ultimate Tic-Tac-Toe rules on ComCom Games

How do you play?

• The board is nine small tic-tac-toe boards arranged in a 3 by 3. Players take turns putting their mark, X or O, in an empty square.
• The square you play in a small board sends your opponent to the small board in the same position. Play the top right square, and they must play in the top right board.
• If they are sent to a board that is already won or full, they can play in any open board instead.
• The boards you are allowed to play in glow on the screen.

How do you win?

• Get three in a row in a small board, across, down or diagonally, to win that board. Nobody can play in it again.
• A small board that fills up with no three in a row is tied, and counts for nobody.
• Win three small boards in a row, across, down or diagonally, to win the game.
• If every board is won or tied with no such row, the game is a draw.

For tips on choosing where to send your opponent, see How to play Ultimate Tic-Tac-Toe.

How does the clock work?

Each player has 5 minutes for the whole game, and only your own thinking time counts down. Your clock keeps running if you close the tab or lose your connection, and reconnecting puts you straight back into the game. If your clock reaches zero, you lose on time.

What happens if a player resigns or leaves?

• Resigning ends the game as a loss for the player who resigns.
• Pressing Exit during a game also ends it as a loss. Both ask you to confirm first.
• Closing the tab is not a forfeit: your clock just keeps running until you come back or run out of time.

Does it pay ComCom Coins?

Yes. A win earns ComCom Coins, up to a daily limit, like every friendly, and counts on the Friendlies tab of the Leaderboard. Ultimate Tic-Tac-Toe is a friendly only, with no tournaments for now.