Tic-Tac-Toe

About the game

Tic-tac-toe online is two games in one: the quick classic 3×3, where three in a line wins, and five in a row on a 10×10 board. Play free against the computer on easy, medium or hard — hard never loses on 3×3.

Play tic tac toe for 2 players on one device, or invite a friend online: create a room and send the link or code, or use Quick match. X moves first, and the next game hands the first move to the other player. A hint highlights the best move, and your wins, losses and draws are saved.

Tips:
1. On 3×3, take the centre — four lines run through it.
2. Build a fork: two threats at once.
3. On 10×10, block your opponent's open threes.
4. Grow two lines side by side rather than one long one.
5. Do not leave an enemy pair unanswered.

FAQ:
— How do I win at tic-tac-toe? Take the centre and set up a fork: two threats at once.
— How do I play with two players? Choose Two players and take turns on one device.
— Can I play a friend by link? Yes, create a room and share the link.
— Does it work on a phone? Yes, tap a cell to move.

How to play:
Choose a board: 3×3 to make a line of three, or 10×10 to make a line of five. Choose an opponent: the computer (easy, medium or hard), Two players on one device, or Play with a friend online. Tap an empty cell to place your mark. The first to line up marks horizontally, vertically or diagonally wins. X moves first, and the next game gives the first move to the other player. To play a friend, create a room and share the link or code, join by code, or use Quick match; online games have a move clock and a Resign button.

Desktop: click a cell; arrow keys move the cursor, Enter or Space place a mark, Esc pauses.
Phone: tap a cell; tapping an occupied cell does not cost your turn.

Featured in: Two-player games, Games for kids, Logic games

Genre: Casual — every game of this genre in the catalog

How to play

This tic-tac-toe online is two games in one. The classic 3×3: the first to get three marks in a row horizontally, vertically or diagonally wins. And five in a row on a 10×10 board, where you need a line of five. X moves first, and the next game hands the first move to the other player.

Pick your opponent in the menu: the computer on three levels (hard never loses on 3×3), two players on one device, or a friend online. For an online game, create a room and send your friend the link or code, join by code, or use Quick match; online games have a move clock and a Resign button. A hint highlights the best move, and your wins, losses and draws are saved.

Controls

Desktop: click a cell to place a mark; arrow keys move the cursor, Enter or Space place a mark, Esc pauses.
Phone: tap an empty cell; tapping an occupied cell does not cost your turn.

Features

Two boards: classic 3×3 and five in a row on 10×10
The computer on three levels — hard never loses on 3×3
Two players on one device
Play a friend online by link, by code or with Quick match
A move clock and a Resign button online
Best-move hint and a tally of wins, losses and draws

Tips

On 3×3, take the centre: four of the eight lines run through it, more than through any other cell.
Set up a fork — two threats at once — and your opponent can't block both in one move.
If your opponent takes the centre, answer in a corner, not on an edge: an edge makes a losing fork easier.
Against the hard computer on 3×3, aim for a draw: it never slips, so look for its weak spots on 10×10.
On 10×10, block your opponent's open threes at once — an open four can't be stopped.
Grow two lines side by side rather than one long one: it makes a double threat easier, and your opponent can't block both.