Draw every line in one stroke.
A calm, minimalist line puzzle. Plan your route, avoid dead ends, and solve each shape without lifting your finger. No timers, no account, and it works offline.
- Free for Android
- Rated 3+
- Plays offline
8 lines, 1 stroke. Start bottom-left, finish bottom-right.
How to play
The rule is simple. Finding the route is the puzzle.
Start from a dot
Touch a dot and follow the connected lines.
Draw without lifting
Cover every line in one continuous stroke.
Never trace a line twice
Think ahead at each intersection so you do not box yourself into a dead end.
Two ways to play
Pick the pace that suits your mood.
One Stroke
The classic rule. Lift your finger before the figure is complete and the attempt resets.
Relax
Your progress stays when you lift. Continue from the glowing endpoint whenever you are ready.
Built for thoughtful play
Difficulty grows through smarter routes, loops, and intersections, not just bigger boards.
Undo and restart
Rethink a route any time.
Smart hints
Reveal the next part of a solution. Spend coins you earn by playing.
Skip and return
Stuck on a shape? Move on and come back later.
Curves and pictures
Curved paths and recognizable pictures sit alongside classic geometry.
Light and dark themes
Soft, calm colours that are easy on the eyes.
Offline, no login
Progress and settings stay on your device.
Questions
What is a one-stroke puzzle?
You draw every line of a figure in a single continuous motion, without lifting your finger and without retracing a line. It is also called a one-line or Euler path puzzle.
Is One Line: One Stroke Puzzle free?
Yes, you can install it free from Google Play. Internet access may be used for ads and related services.
Can I play without internet?
Yes. The core puzzle experience works offline, and no account or login is required.
How do hints work?
Hints reveal the next part of a solution. You earn coins through play and spend them on hints.
What if I get stuck?
Use undo or restart, skip the puzzle and return later, or try Relax mode to keep your progress when you lift your finger.
Think ahead. Draw once. Find the path.
Download One Line: One Stroke Puzzle and start your first shape.
Get it on Google Play