Support
Answers to common questions. Can't find yours? Email us and we'll reply, usually within two working days.
Playing
How do I play?
Start on dot 1 and drag one continuous line through every cell of the grid, passing the numbered dots in order. The line must end on the last number and can't cross the thick walls. Drag back over your line to undo, or use the Undo and Clear buttons.
How do stars and hints work?
Solve a level with no hints for three stars, with one or two hints for two stars, and with more for one. A hint adds the next correct step, or trims your line back to the last correct cell if you went off track.
Do the levels ever run out?
No. Every level is generated from its number, so there's always another one, and level N is the same puzzle for everyone.
Progress
Do I need an account?
No. Just open the game and play. There's nothing to sign up for.
Where is my progress saved?
On your device: in the app's storage on iPhone, or in your browser's storage on the web. Progress doesn't move between devices or browsers. Clearing your browser's site data or deleting the app deletes it.
Can I replay a level?
Yes. Open Levels (the grid icon) and pick any level you've unlocked. Your best time and stars are kept.
Still stuck?
Tell us your device and the level number.
See also our Privacy Policy.