One Line — خط واحد

Draw a single, continuous line that passes through each square exactly once. Lift your finger and you start over. That's the whole basic rule, and it holds up for 500 puzzles.

The first 3x3 boards are solved in seconds. The last 100 boards are 8x8 with closed, ordered squares, so there's only one path. When you find it, you'll feel like the puzzle was waiting for you.

What's inside?

• 500 levels across five difficulty levels: Beginner, Intermediate, Advanced, Expert, and Pro
• Grids from 3x3 to 8x8, with closed squares forming the path
• Three hints for each level, and a countdown timer that doesn't penalize you for trying again
• Optional timer, off by default, because this isn't a speed game
• Dark mode designed for playing in bed
• Gentle vibration with each square, and an option to reduce movement if you prefer everything to be still

How to play:

Start at the illuminated point and swipe. The line follows your finger line by line and shows you its exact position, so there's no guesswork about whether the movement was recorded or not. Swipe back. Redo using the button. Nothing gets lost.

No confusion

• Works completely offline
• No account, no login, no cloud storage
• No in-app purchases

Ad-supported