Arukone (also known as Numberlink) is about drawing paths. The board has pairs of equal numbers scattered around, and the task is to join each pair with one unbroken line — without any lines crossing, and so that every single cell ends up part of a line. It is easier than it looks: start with the pairs that have almost no choice.
The rules
- Connect each pair of equal numbers with one continuous line.
- Lines follow neighbouring cells horizontally or vertically and cannot cross.
- The whole board must be filled — every cell has to be part of a line.
- Drag your finger from one number to its partner.
Getting started: Pairs sitting next to each other connect directly, and a pair in a corner usually has just one possible route.
Step by step
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1Connect the pairs of equal numbers with lines that never cross.
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2Start here: the 1-path has only one legal next step at a time.
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3The 4-path has only one legal next step — follow it on.
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4The 2-path is forced cell by cell — and the ends meet.
3 more steps in this walkthrough — the full step-by-step solve is a Pluss feature. About Pluss →
Real puzzle no. 722, solved step by step by the logic solver.
Common questions
Does the whole board have to be filled?
Yes. A solution is only correct when every single cell is part of a line — connecting the pairs by the shortest route is not enough.
Can I play right in the browser?
Yes. Pick a Arukone puzzle and solve it on screen — press “Check” to see if you are on track, and “Hint” if you get stuck. You can also print it.
Can I link to a specific puzzle?
Of course. Every puzzle has a number, and you can link straight to it: puzzles.flogvit.com/eng/arukone?nr=100. Replace 100 with the puzzle number — handy for challenging a friend with the very same puzzle.
Can I print the puzzles?
Yes. Each type has a print sheet for one or four puzzles with the answers on a separate page.
Are the puzzles free to use?
Yes, this is a free service. If you want to publish the puzzles elsewhere you must arrange it first — see copyright.