Tic-Tac-Toe
Play tic-tac-toe against a friend or the computer, right in your browser.
Your turn (X)
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You (X)
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Draws
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Computer (O)
Play tic-tac-toe against a friend on the same screen, or against a computer opponent that plays a genuinely strategic game rather than moving randomly — meaning a perfect game against it will always end in a draw, not a win.
Simple rules, but the computer opponent is tuned to actually contest the game rather than being a pushover.
Frequently asked questions
- Can the computer opponent be beaten?
- The computer plays optimally, so with perfect play from both sides every game ends in a draw — you can still win if the computer's opponent (or its difficulty setting) allows for suboptimal play.
- Is there a strategy to guarantee a win?
- Against a perfect opponent, no strategy guarantees a win — the best achievable outcome is a draw. Against a less careful opponent, taking the centre square first and watching for forks gives the best odds.
- Can two people play against each other on the same device?
- Yes — the two-player mode lets both players take turns on the same screen without needing a computer opponent.