LINESCLASH · FREE BROWSER GAME
Online tic-tac-toe, with a bigger challenge
Know tic-tac-toe, noughts and crosses or X and O? LinesClash takes the familiar three-in-a-row idea onto bigger boards, where your first line starts the scoring instead of ending the match.
How LinesClash changes three in a row
Place one symbol in any empty cell, then let the next player move. Horizontal, vertical and diagonal lines of three earn points. Keep playing: four in a row contains two scoring segments, and longer lines create more chances to build your total. In Classic rules, the highest score when the board fills wins.
The faint area borders help you read the board, but do not restrict your next move. Lines can cross those borders. You can also earn area and defence bonuses; the official scoring rules explain exactly when they apply.
Classic, Ultimate and LinesClash: what is different?
| Game | Where you move | Goal |
|---|---|---|
| Classic tic-tac-toe | Any free cell on a 3×3 board | Complete one winning line |
| Ultimate Tic-Tac-Toe | The mini-board selected by the preceding move, when available | Win a line of mini-boards |
| LinesClash Classic | Any free cell across one larger board | Build the highest total score |
LinesClash is its own game inspired by tic-tac-toe. It does not offer a separate traditional 3×3 or Ultimate ruleset.
Choose your opponent and board
Start with a 6×6 Duel against Casual AI for a short introduction without a human turn timer. Smart and Hard also support that board. Experimental and Nightmare start at 9×9 and use a 30-second human turn clock. You can select those opponents from Play vs Computer.
For human games, play together on one device or invite friends online. Duel supports two players, Triple three and Chaos four. Marathon and Insanity offer larger boards for 2–4 players. Available sizes depend on the mode; read the mode and board guide before choosing a long match.
Free to play on a phone or computer
LinesClash runs in your browser with no download. Guest play does not require an account. Use touch on a phone or a mouse on a computer; both use the same scoring rules. An optional profile keeps official progression.
If you enjoy the familiar X-and-O idea but want more decisions after making a line, try a match, then use the beginner strategy guide to practice forks, useful blocks and cross-area scoring.