Tic-tac-toe

Your move. You are X, pick a square.

 O | X | O 
---+---+---
 4 | O | X 
---+---+---
 X | O | X 

Moves: X9 O5 X2 O1 X7 O8 X6 O3

Play the recursive version ↻

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