Tic-Tac-Toe Help

Simple, fast, and classic. Get the rules, answers, and tips in one place.

How to Play is the quick-start. Rules is the reference. Walkthrough shows a few classic situations. FAQ is for quick questions.

New here: themes and mark styles, computer players (including two at once), and optional player names.

Quick Start Instructions

  • X goes first, then players alternate turns.
  • Place a mark on any empty square.
  • Three in a row wins (horizontal, vertical, or diagonal).
  • If the board fills with no three in a row, it is a draw.