Tic-tac-toe

Your move. You are X, pick a square.

 O | X | O 
---+---+---
 X | O | 6 
---+---+---
 X | O | X 

Moves: X4 O5 X9 O1 X2 O3 X7 O8

Play the recursive version ↻

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