Tic-tac-toe

Your move. You are O, pick a square.

 X | 2 | O 
---+---+---
 O | X | X 
---+---+---
 X | 8 | O 

Moves: X5 O9 X1 O3 X6 O4 X7

New game | Computer goes first | Undo

Play the recursive version ↻

No JavaScript. Every square is a link. Works in curl, lynx, or a browser.