Three in a row. Simple to learn, hard to beat.
vs Computer
vs Player online
How to play
Players take turns putting their mark, X or O, into an empty square of the 3×3 grid.
The first to get three marks in a row, horizontally, vertically or diagonally, wins. If all nine squares fill up first, it's a draw. Played perfectly, every game is a draw: the Hard computer never loses.
Keyboard: arrow keys move, Enter places, 1–9 place straight into a square (left to right, top to bottom).
Room
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vs
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