Zumple
One Line
Cover every cell without lifting your finger.
Play One Line nowAbout this game
One line is a path puzzle: draw a single line through every cell of the grid without lifting your finger and without visiting any cell twice. You start from the glowing cell.
How this mode works
Press the glowing cell and drag to a neighbour.
Drag back one step to undo; every cell must be covered once.
Tips to get better
- Cells with only one open neighbour must be an end of the line — plan around them first.
- Avoid cutting the grid into two separate regions; you cannot reach both.
- Hug the edges early; the middle is easier to fill at the end.
- Drag back one step to undo when you see you are heading into a dead end.
At a glance
| Mini games | One Line |
|---|---|
| Moves | No limit |
| Can you lose? | No, it never ends |
Questions and answers
What are the rules?
Start at the glowing cell and drag to neighbouring cells until every cell is covered exactly once.
Can I undo a step?
Yes, drag back one step to undo it.
Does every level have a solution?
Yes.
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