About Tic Tac Toe HTML5
You and your rival take turns, one mark per move.
On the small 3x3 grid you need three in a row to win, just like the paper version. On the 5x5 and 7x7 grids the target is four in a row. You can play alone against the computer or face a friend in a 2 player match.
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The bigger grids change how a match feels. A 7x7 board has 49 squares instead of nine, so there are far more open lines to watch at the same time. Much of the game turns into counting which lines your opponent still needs and which ones you can still finish, a bit like a small math puzzle.
Every move has two sides. You build toward your own line while you block the one your rival is building.
Quick summary
- You choose a 3x3, 5x5 or 7x7 grid and play against the computer or a friend.
- You and your opponent take turns placing one mark at a time.
- The first player to line up three marks on 3x3, or four on the larger grids, wins the match.
Key features
- The classic pen and paper board game comes with two extra, larger grid sizes.
- The winning line grows from three marks to four on the bigger boards.
- A solo mode puts you up against the computer.
- It plays in portrait on phones and tablets.
Tips & tricks
- On 5x5 and 7x7, block any open line of three right away, because one more mark finishes it.
- Before you place a mark, check whether your opponent can complete a line on their next turn.
Frequently asked questions
How many marks in a row do I need to win?
Three on the 3x3 grid, and four on the 5x5 and 7x7 grids.
Can I play against another person?
Yes. You can play against a friend or alone against the computer.
Which way should I hold my phone?
The game runs in portrait orientation.
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