Tic Tac Toe

Most people stop playing Tic Tac Toe around age 10, once they notice every game ends in a draw. This version fixes that with a second board where 3 in a row isn't enough. Tic Tac Toe is a free strategy game you play in your browser. You place X or O marks on a 3x3 or 5x5 grid and try to complete a line before your opponent does.

Main Controls

• Place your mark: LEFT CLICK

How It Works

Tic Tac Toe gives you 2 boards. On the classic 3x3 grid you need 3 marks in a row, across, down or diagonally. On the 5x5 grid the target grows to 4 in a row, which leaves far more room to set traps and far more ways to miss one. Your mark is X and the opponent's mark is O, and a round ends in a draw once every square is filled without a winning line.

You can play against the computer or against a friend on the same device. The computer has 2 difficulty settings, Normal and Hard, which you switch on the setup screen before the round starts. Inlogic Software made and published the game in 2020.

1. Choose to play against the computer or against a friend.
2. Set the computer to Normal or Hard if you are playing alone.
3. Pick the 3x3 board or the 5x5 board.
4. Click an empty square to place your X.
5. Watch where the O lands and block any line that is one mark from finishing.
6. Complete 3 in a row on 3x3, or 4 in a row on 5x5, to win the round.

What Makes It Stand Out

• 2 board sizes: The 3x3 board keeps the classic rules, and the 5x5 board asks for 4 in a row instead of 3.
• 2 computer levels: Normal and Hard change how well the computer reads your threats.
• Local 2 player mode: 2 people can share one screen and take turns placing X and O.
• Short rounds: A 3x3 round lasts at most 9 moves, so a full match takes very little time.
• Desktop and mobile: The game runs in desktop and mobile browsers and plays the same way with a mouse or a touchscreen.

Getting Started

• Open Tic Tac Toe on the 3x3 board first. The small grid shows you how the computer blocks and attacks before the bigger board hides those patterns.
• Take the center when you move first. The middle square sits on 4 possible lines on a 3x3 board, more than any other square.
• Answer a center opening with a corner. If your opponent takes the middle, a corner is the only reply that avoids an early forced loss.
• Count open lines, not marks. A mark that sits on 2 unfinished lines at once is worth more than 2 marks on a line that is already blocked.
• Switch to Hard once Normal stops beating you. Hard punishes loose moves, which is the quickest way to learn which openings actually hold up.

Going Further

Tic Tac Toe on the 3x3 board is a solved game, and with perfect play from both sides it always ends in a draw. That means a win only comes from your opponent's mistake, so the real skill is setting up a fork, a single move that creates 2 winning threats at once. The 5x5 board changes the math because 4 in a row leaves gaps for both players to build double threats several moves in advance. Blocking early matters more there, since an open line of 3 can turn into an unstoppable pair of threats in one turn. There are no unlocks, coins or levels to grind, so progress is measured only by how often you beat the Hard setting.

Mistakes Worth Avoiding

• Opening on an edge square. An edge sits on only 2 lines on the 3x3 board, so it gives the opponent the center and the initiative.
• Chasing your own line while ignoring theirs. One open line of 2 on the 3x3 board ends the round on the very next move.
• Playing 5x5 like 3x3. Rushing for a quick line on the big board leaves open space the computer uses to build a 4.
• Missing the fork. If you can only block one of 2 threats, the round was lost a move earlier, when the fork was allowed.
• Staying on Normal too long. Normal lets weak openings through, so wins there teach habits that Hard quickly punishes.

Similar Board Games

If lining up marks before your opponent does is the part you enjoyed, Connect 4 is the natural next step, 4 in a row again but with pieces that drop to the bottom of each column. Checkers keeps the 2 player duel on a grid and adds captures and kings. Chess takes the same one move at a time thinking to its deepest form, with 6 different piece types. More picks are in Board Games.

Final Thoughts

The Tic Tac Toe game earns its place with the 5x5 board, which turns a solved childhood game into something you can still lose. Playing Tic Tac Toe online against Hard is a quick test of focus. Anyone looking for online matches against strangers, rankings or long sessions will find it too small.

FAQs About Tic Tac Toe

1. What is Tic Tac Toe?

   Tic Tac Toe is a turn based strategy game in which 2 players place X and O marks on a grid. The first player to complete a line wins, and a full board without a line is a draw.

2. How to play Tic Tac Toe?

   Click an empty square to place your X, then wait for the O. Complete 3 in a row on the 3x3 board, or 4 in a row on the 5x5 board, before your opponent does.

3. Can you play Tic Tac Toe with 2 players?

   Yes. Tic Tac Toe has a 2 player mode for 2 people on the same device, as well as a mode against the computer. In 2 player mode the players take turns on one screen.

4. Can I play Tic Tac Toe on mobile?

   Yes. Tic Tac Toe runs in mobile and tablet browsers, and you tap a square to place your mark. The rules and board sizes are the same as on desktop.

5. How hard is the computer in Tic Tac Toe?

   Tic Tac Toe offers 2 computer levels, Normal and Hard. Hard blocks threats more reliably than Normal, so beating it on the 3x3 board usually takes a well prepared fork.

6. Can you always win at Tic Tac Toe?

   No. On the 3x3 board, Tic Tac Toe always ends in a draw when both sides play perfectly. Wins come from forks and from opponent mistakes.