COLOR LINES
Color Lines
9×9 Grid · 7 Colors · Make Lines of 5+
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Slide marbles into rows of five or more of one color to clear them. Each move that doesn't clear a line drops three more — keep the board from filling up and chase the longest combo you can. Play it free on LK Forge — no sign-up, no download, right in your browser.
The game ends when the board fills up — it's a pure high-score chase.
Color Lines is a modern, AI-powered take on the classic line-clearing puzzle — the game many players remember as Lines 98, reimagined for today's browser with a built-in AI hint engine. Marble movement uses a breadth-first pathfinder that lights up exactly the squares each marble can reach.
The Smart-Move engine reads the live board: it scans every marble and every square it can reach, plays a clearing move when one exists, and otherwise picks the move that grows your longest same-color run — then highlights the marble to move and where to send it.
New to the game? Read the full strategy guide to learn the corner, combo and bait techniques that separate a 500 from a 5,000.
Go deeper: How the pathfinder works · How to score high
Lines 98 is the name most players know for a standalone Windows remake of Color Lines, a puzzle created in 1992 by the Russian studio Gamos and played on a 9×9 grid where five or more same-colored balls in a row clear from the board. The Lines 98 remake spread widely in the late 1990s, especially in Vietnam. Color Lines on LK Forge is a modern browser implementation of the same rules but adds an AI-powered pathfinding assistant that calculates the shortest open route for any ball and displays it on the board — a feature absent from the classic versions. Both use the same 9×9 grid and five-in-a-row scoring; this version runs free in any modern browser with no download or login required.
Playing Color Lines starts with tapping a marble, then tapping an empty square it can reach along a clear path. Group five or more of one color in a row to clear them. If a move doesn't clear a line, three new marbles drop in.
The status bar shows the three marbles that will drop after your next non-clearing move, also previewed as small ghost markers on the board. Use it to plan ahead — place your next move so the ghosts land somewhere useful instead of blocking a lane. Expert difficulty turns this preview off, so you build lines blind.
Five marbles score 10; longer lines score far more, and a move that clears two crossing lines stacks both. A six scores 12, a seven 18, an eight 28 — the payout accelerates the longer you hold out. Clearing is a free turn, so longer combos are the path to a high score.
The Smart-Move hint scans every marble and every square it can reach, prefers a move that completes a line right now, and otherwise picks the move that builds your longest same-color run. It then highlights which marble to move and exactly where to send it. You get a limited number of hints per game, so it's meant to teach the pattern, not play the board for you.
Color Lines is completely free, with no sign-up required. The board scales to any screen and is fully tap-controlled, so it plays well on phone, tablet or desktop. There's nothing to install and no account to create — open the page and play.
Try AI Tic Tac Toe, AI Sudoku, AI 2048, Brain Puzzles, Memory Match or browse the games hub on LK Forge.
No more room to move.0final score