The rules
- Fill in 1–N so each number appears once per row, column and box.
- A twist on ordinary sudoku — but the same core rule.
- Tap a cell and pick a number.
Getting started: Same core rule as sudoku — look for rows, columns or boxes that are nearly full.
Step by step
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1Here is the puzzle. The fixed numbers are given.
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2Row, column and box rule out everything else here — only 4 fits.
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3Row, column and box rule out everything else here — only 4 fits.
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4Row, column and box rule out everything else here — only 5 fits.
4 more steps in this walkthrough — the full step-by-step solve is a Pluss feature. About Pluss →
Real puzzle no. 3416, solved step by step by the logic solver.
Common questions
Can I play right in the browser?
Yes. Pick a Sudokuto 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/sudokuto?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.