We're the team behind VSPocket. When choosing games for the app, the one we placed as the easiest possible entry point was Tic-Tac-Toe. No paper or pen, and the rules take seconds to explain. For waiting with a kid, or just wanting a quick face-to-face round with someone, nothing beats it for sheer ease.
But Tic-Tac-Toe is also a game where "I know it, yet somehow I lose." In this article we recap the rules, then walk through, in order, the tricks to never lose.
The rules
The board is a 3Γ3 grid of nine cells. One player uses X, the other O, taking turns marking an empty cell (X traditionally goes first). Get three of your marks in a row β vertically, horizontally, or diagonally β to win. If all nine cells fill with no three in a row, it's a draw, sometimes called a "cat's game."
In VSPocket, tapping an empty cell drops your mark. A round wraps up in 1β3 minutes, so it stays brisk even over many games. Because the rules are so light, knowing the "never lose" tips below is what separates players.
How to never lose
With best play on both sides, Tic-Tac-Toe always ends in a draw β meaning if you play correctly, you can't lose. The decision always follows the same priority.
First, if you already have two in a row with an open cell to complete three, take it and win. If you don't, look at the opponent's threat next: if they have two about to become three, block that cell as the top priority. Attack only after you've handled that defense.
What decides games is the fork: one move that creates two threats at once, so the opponent can only block one. Aim to make it, and never let them make it. The whole charm of Tic-Tac-Toe comes down to this read.
Last, a word on position. As the first player, opening in a corner invites mistakes; as the second player, if the opponent takes a corner, take the center β the strongest cell, sitting on four lines. Hold that and you won't lose even going second.
Play Tic-Tac-Toe on VSPocket
VSPocket is an offline collection of board games two people play face-to-face on one phone. Tic-Tac-Toe is the gateway. Once you're comfortable, move on to the deeper "line them up" games in the same app, like Connect Four and Gomoku. Free, no sign-up, ready to play the moment you open it.
VSPocket
An offline collection of board games two people play face-to-face on one phone. Tic-Tac-Toe included. Free to start.
Learn more about VSPocketFrequently asked questions
Does the first player always win at Tic-Tac-Toe?
No. With best play on both sides it always ends in a draw. The first player is slightly favored, but the second player won't lose with correct play.
What's the trick to not losing as the second player?
If the opponent takes a corner, take the center; always block their threats and never let them fork you. Hold those two and you can force a draw.
Is "noughts and crosses" the same as Tic-Tac-Toe?
Yes, it's the same game. It's called noughts and crosses in some places and Tic-Tac-Toe in others.
What happens on a draw?
If all nine cells fill with no three in a row, it's a draw. To settle it, players usually swap who goes first and play again.