Despite its apparent simplicity, Tic-tac-toe requires detailed analysis to determine even some elementary combinatory facts, the most interesting of which are the number of possible games and the number of possible positions. A position is merely a state of the board, while a game usually refers to the way a terminal position is obtained.
The game ends when three-in-a-row is obtained.
The number of Xs is always either equal to or exactly 1 more than the number of Os (if X starts).
Latest Version
1.0Requires Android
4.0 and up
Category
Free Puzzle GameContent Rating
Everyone
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Flag as inappropriateLast updated on Nov 27, 2016
Minor bug fixes and improvements. Install or update to the newest version to check it out!