Your move. You are X, pick a square.
O | X | O ---+---+--- X | X | O ---+---+--- X | O | 9
Moves: X5 O1 X2 O8 X4 O6 X7 O3
New game | Computer goes first | Undo
Play the recursive version ↻
No JavaScript. Every square is a link. Works in curl, lynx, or a browser.