4×4 Tic Tac Toe Online – How to Play
Play MesraTools Neon Tic Tac Toe for free. This colourful strategy game uses a larger 4×4 grid with 16 squares. Choose to challenge the computer or take turns with a friend. The first player to place four matching symbols in a straight line wins.
Example 4×4 board with X and O
Simple rules
- Choose Vs Computer or Two Players.
- Player X starts and selects any empty square.
- Player O takes the next turn. Players alternate without overwriting occupied squares.
- Make four Xs or four Os in one row—horizontal, vertical, or diagonal—to win.
- If all 16 squares fill without a winning line, the round ends in a draw.
- Press New Game to play again. Use the sound button to turn effects on or off.
How do you win 4×4 Tic Tac Toe?
A winning line contains four matching marks across a complete row, down a complete column, or along either full diagonal. Unlike classic 3×3 Tic Tac Toe, three in a row is not enough to win this version.
Strategy tips for beginners
- Watch for opponents who already have three marks in a possible winning line and block their remaining square.
- Look for moves that help you build more than one potential line.
- Keep track of both diagonals and all four rows and columns.
- Try the two-player mode to practise with family or friends.
Frequently asked questions
Is 4×4 Tic Tac Toe free to play?
Yes. This MesraTools game is free to play in your web browser.
Can I play against a friend?
Yes. Select Two Players and take turns on the same device.
How many squares are in the board?
The board has four rows and four columns, for a total of 16 squares.
Do I need four or three in a row?
You need four matching marks in a straight horizontal, vertical, or diagonal line to win.
MesraTools provides browser-based games and everyday online utilities. No download is needed for this game.