Quick Walkthrough
1 — Objective
Place three of your marks in a horizontal, vertical, or diagonal row to win.
2 — Turns
Players alternate placing marks (X goes first). Click an empty cell to place your mark.
3 — Blocking
If opponent threatens to make three, place to block them.
4 — Draws
If all cells fill without a line of three, it's a draw.
5 — AI
Choose AI difficulty on the Play screen; easy is random, hard looks ahead.
Interactive Example
Open the Play screen and try a round; return here for tips if you get stuck.