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Sudoku Hint — Get the Next Move

Stuck on a puzzle? Enter or scan it and get a single hint: just the next cell, with a clear explanation of why that digit goes there. No spoilers unless you want them.

One nudge at a time

Type, paste or scan the puzzle you're stuck on and press Hint. The detail escalates only as far as you let it: a region to look at, then the technique's name, then the full reasoning. The cell is filled in only when you ask, so the rest of the board stays yours.

Learn the pattern behind the move

Every hint names its technique (hidden single, locked candidates, X-Wing and the rest) and links to the guide for it, so each nudge teaches you to spot the same pattern yourself next time. Place the digit, then ask again to keep going.

Works on the puzzle in front of you

Because you can scan a photo or screenshot, you can get a hint for the exact puzzle in your newspaper, book or another app, not only puzzles generated here.

Prefer to practise? Pick a level — easy, medium, hard or expert — or read the strategy guides. Other tools: solver, photo scanner, hint and checker.

How to play Sudoku on Playoku

Sudoku is a logic number puzzle played on a grid divided into boxes. Fill every empty cell so that each row, each column and each box contains every digit exactly once — 1 to 9 on the classic 9×9 grid, 1 to 4 on a 4×4 grid, and 1 to 6 on a 6×6 grid. Every puzzle on Playoku has exactly one solution and can be solved by logic alone, with no guessing required.

Features

Free to play, with no sign-up and no ads.

Frequently asked questions

Is Playoku free to play?

Yes. Playoku is completely free, with no sign-up and no ads. Just open the page and start solving.

How do you play Sudoku?

Fill every empty cell so that each row, each column and each box contains every digit exactly once. Every puzzle has exactly one solution and can be solved by logic alone.

What grid sizes and difficulties are available?

Playoku offers 4×4, 6×6 and 9×9 grids across four difficulty levels: Easy, Medium, Hard and Expert.

Can I share a Sudoku puzzle with a friend?

Yes. Use the Share button to copy a link that recreates the exact same board.