How to Win at Tic-Tac-Toe (or Never Lose)
4 min read • Updated November 2026
QUICK ANSWER
Tic-tac-toe is a draw if both players play perfectly, so you win by setting a trap: open in a corner, and create a fork, two threats at once, that your opponent cannot block both of.
Tic-tac-toe looks too simple to have a strategy, yet most players lose games they should have drawn. The whole game comes down to a few ideas you can learn in five minutes.
Play the free Clipaist version against the computer on Easy first, then step up to Hard, which never makes a mistake, to test yourself.
How to do it, step by step
- Open in a corner. If you go first, take a corner. It gives your opponent the most chances to go wrong.
- Answer a corner with the centre. If your opponent opens in a corner, take the centre. Taking an edge square here loses against good play.
- Block, then threaten. Every turn: first win if you can, then block their two-in-a-row, then build your own.
- Make a fork. Place a mark so that two different lines each need one more square. They can only block one.
Why the game is a draw
With perfect play from both sides, tic-tac-toe always ends in a draw. That is not a rumour: the game is small enough that every position has been analysed. So the aim is not to out-calculate a perfect player, it is to give a human opponent the chance to slip.
The computer on Hard is that perfect player. The best you can do against it is a draw, and every draw there means you played without a mistake.
The best first move
There are three kinds of squares: the centre, the four corners and the four edges. A corner is the best opening for the player who goes first, because it creates a chance to win against any reply except the centre.
If you go second, answer a corner opening with the centre. Answer a centre opening with a corner. Never answer a corner with an edge.
How a fork wins the game
A fork is a move that creates two winning threats at once. For example, with marks in two opposite corners and the centre free, taking the centre can threaten two lines. Your opponent can block one, and you complete the other.
Look for forks on your turn, and look for your opponent forks too. If they have one coming, you may need to force them to block you first, so they never get the time to build it.
QUICK TIPS
- ✓ Always check for an immediate win before you do anything else.
- ✓ Then check whether your opponent has two in a row and block it.
- ✓ Going second? The centre is your best friend after a corner opening.
- ✓ Swap who starts each game. On Clipaist the starter changes on every rematch.
Frequently asked questions
Can you always win tic-tac-toe?+
Is it better to go first?+
What is the best square to start on?+
Cite this page: Clipaist Editorial, "How to Win at Tic-Tac-Toe (or Never Lose)", Clipaist, November 2026. https://clipaist.com/guides/how-to-win-at-tic-tac-toe/
Clipaist Editorial
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