Number Path – one line, every cell, numbers in order
Number Path is a quick logic puzzle. You draw one line through the grid. The line must visit every cell exactly once and pass the numbers in order: 1, then 2, then 3, until the last number. It takes ten seconds to learn and can still make you think hard on the bigger grids.
If you like the daily path puzzles on LinkedIn or in newspapers, you will feel at home here. Our version has 60 levels, walls on later levels, and one new daily puzzle.
Quick start in 3 steps
- Put your finger on 1.
- Drag to the next cells. Up, down, left or right – no diagonals.
- Fill every cell and finish on the highest number. Done!
The full rules
Setup
You get a square grid (5×5 up to 8×8). Some cells show numbers. The smallest is always 1, the biggest is where your line must end.
What is allowed
- The line moves one cell at a time, only up, down, left or right.
- Each cell can be used once. The line can't cross itself.
- Numbers must be reached in order. You can't touch 4 before 3.
- The line can't pass through a thick dark wall between two cells (from level 16 on).
- The last number must be the very last cell. You can't step on it while other cells are still empty.
How a move works
Drag your finger or mouse from cell to cell. You can also tap a cell right next to the end of your line. To go back, drag back along your line, tap any earlier cell of your line (everything after it is removed), or press Undo.
When you win
You win when every cell is part of the line and the line ends on the highest number.
When you are stuck
The game warns you in two cases: when the end of your line has nowhere to go (a dead end), and when some empty cells can no longer be reached. Then go back a few cells. Every level has a solution – it was built from one.
Buttons and numbers
| Button / number | What it means |
|---|---|
| ↶ Undo | Removes the last cell of your line. Free, as often as you like. |
| 💡 Hint | Adds the next two correct cells. If your line went the wrong way, it takes it back to the last safe cell. Free. |
| ⟲ Clear | Removes the whole line so you can start again. |
| ⏭ Skip | Opens the next level and goes there. Free. |
| ▦ Levels | All 60 levels with your stars. |
| Level | Your current level. 📅 means the daily puzzle. |
| Grid | The size of the board. |
| Filled | Cells in your line / all cells. |
| Time | Starts with your second cell. Pauses when you leave the tab. |
Levels and modes
- Levels 1–10: 5×5, many numbers. Good to learn.
- Levels 11–25: 6×6.
- Levels 26–45: 7×7. Walls start at level 16.
- Levels 46–60: 8×8, fewer numbers, more walls.
- 📅 Daily: one 7×7 puzzle with walls, new every day, the same for everyone.
Later levels have fewer numbers, so you get less help and must plan more.
Stars
- ★★★ – solved with no hint
- ★★ – 1 or 2 hints
- ★ – more hints
Undo and Clear never cost stars.
6 tips
- Corners first. A corner cell has only two neighbours. If your line passes next to a corner without entering it, that corner is often lost.
- Hug the edges. Running along the border keeps the middle open and avoids small trapped pockets.
- Watch for one-cell holes. An empty cell with only one free neighbour must be an end – and only the last number may be the end.
- Look ahead to the next number. Count how many cells you need to fill before you reach it, and how much space is around.
- Walls are clues. A wall tells you which way the line can't go, so it often forces a turn.
- Think backwards. The last number is the end of the line. Which cells around it must come just before it?
A little history
Puzzles where one path has to visit every cell are old. Mathematicians call such a path a Hamiltonian path, after the Irish mathematician William Rowan Hamilton, who sold a puzzle game about visiting every corner of a dodecahedron in the 1850s. Number-path puzzles like Hidato and Numbrix appeared in newspapers in the 2000s, and in recent years short daily versions have become very popular on apps and social networks.
What does it do for your brain?
Honestly: it is a game, not a therapy. But it trains useful things in a light way:
- Spatial planning – you picture a route before you draw it.
- Thinking ahead – one bad turn now can trap a corner later.
- Error spotting – you learn to see dead ends early.
- Focus – a puzzle takes one to five calm minutes.
What this game can and can't do
- ✅ Works in the browser on phone, tablet and PC. No download, no account.
- ✅ Every level is solvable. Undo, Hint and Skip are free, with no ads in front of them.
- ✅ Your open levels, stars and your current line are saved in this browser.
- ❌ No sync between devices. Clearing browser data resets your progress.
- ❌ There may be more than one correct path. Any path that follows the rules wins.
Frequently asked questions
Can I move diagonally in Number Path?
No. The line moves only up, down, left or right, one cell at a time.
Do I have to fill every cell?
Yes. The puzzle is only solved when every cell is part of your line and the line ends on the highest number.
What are the thick dark lines?
They are walls. Your line can't pass between two cells that have a wall between them. Walls appear from level 16.
Is every level solvable?
Yes. Every level is made from a real path that visits all cells, so a solution always exists.
Can there be more than one solution?
Sometimes. Any line that follows all the rules counts as a win.
How do I go back?
Drag back along your line, tap an earlier cell of the line, or press Undo. Clear removes the whole line.
How do I get 3 stars?
Solve the level without any hint. Undo does not cost stars.
Where is my progress saved?
In your own browser on this device. If you clear browser data or change phones, you start again.
Is there a new puzzle every day?
Yes. The Daily button gives one 7×7 puzzle with walls. It changes every day and is the same for everyone.