Free medium Sudoku online

Medium Sudoku

Play free medium Sudoku online with SudoSketch. A proper step up from easy Sudoku: more thinking, more candidate checking, and just enough bite without becoming a full grid-shaped hostage situation.

Play medium Sudoku online for free

Medium Sudoku is the sweet spot for many players. It is more satisfying than easy Sudoku, but it should still feel fair, logical and enjoyable. A good medium Sudoku puzzle gives you enough starting information to get moving, but asks you to slow down, scan more carefully and use notes more deliberately.

With SudoSketch, you can play medium Sudoku online for free using a standard keypad or handwriting input. Write numbers directly into the Sudoku grid using your finger, stylus or Apple Pencil. It keeps the natural feel of paper Sudoku while adding useful online tools like notes, highlighting and optional mistake checking.

Why choose medium Sudoku?

Balance

The ideal middle ground

Medium Sudoku gives you a proper puzzle without immediately throwing you into advanced solving methods and a mild existential wobble.

Focus

Better logic practice

Medium puzzles encourage stronger scanning, candidate marking and elimination across rows, columns and boxes.

Progress

Step up from easy

Once easy Sudoku feels comfortable, medium Sudoku is the natural next level before hard, master and insane puzzles.

How medium Sudoku puzzles are solved

Medium Sudoku is not simply about removing more starting numbers. Real Sudoku difficulty depends on the logic needed to complete the grid. Medium Sudoku usually requires more careful checking than easy puzzles, including pencilled candidates, hidden singles, naked singles and basic elimination patterns.

A good medium Sudoku puzzle should make you pause and think, but not require advanced techniques like X-Wing, Swordfish, XY-Wing or forcing chains. If easy Sudoku is a warm-up, medium Sudoku is the point where the puzzle starts politely asking whether you were actually paying attention.

Medium Sudoku features

Free

Free to play

Play medium Sudoku online with no download, no sign-up and no nonsense.

Daily

Daily medium Sudoku

Try a fresh daily medium Sudoku puzzle and compete for clean leaderboard times.

Pencil

Handwriting input

Use finger, stylus or Apple Pencil to write numbers straight into the grid.

Medium Sudoku tips

Start by scanning each row, column and 3x3 box for obvious missing numbers. Once the easy placements slow down, use notes to mark possible candidates. Medium Sudoku often becomes easier when you stop guessing and start asking, “Where can this number actually go?”

Look for cells with only one possible value, and also look for numbers that only have one possible position inside a row, column or box. These simple Sudoku solving habits are the bridge between easy puzzles and harder logic puzzles.

Start a medium Sudoku puzzle

Enough challenge to feel smug afterwards. Not enough to ruin your tea.

Medium Sudoku FAQ

Is medium Sudoku good for improving?

Yes. Medium Sudoku is one of the best levels for improving because it pushes you beyond obvious placements while still relying on understandable logic.

Is medium Sudoku harder than easy Sudoku?

Yes. Medium Sudoku usually requires more careful candidate checking, more scanning and slightly deeper logical elimination than easy Sudoku.

Do I need to sign up?

No. SudoSketch is free to play online without an account.

Can I play on mobile or tablet?

Yes. SudoSketch works in the browser on phones, tablets, iPad, desktop and laptops. Apple Pencil and stylus input are supported where available.

What should I play after medium Sudoku?

Once medium puzzles feel comfortable, try hard Sudoku. Hard puzzles usually require more structured candidate work and stronger solving discipline.