Free medium Sudoku online

Medium Sudoku

Play medium Sudoku online for free with a grid you can write in. Use keypad input, finger, stylus or Apple Pencil, with notes, highlighting and optional mistake checking.

Play medium Sudoku online for free

Medium Sudoku is a balanced step between easy Sudoku and hard Sudoku. It is designed for players who already understand the basics and want a more satisfying puzzle without jumping straight into advanced solving techniques.

SudoSketch gives medium Sudoku a more natural feel by letting you write directly into the grid. You can solve with a standard keypad, or use handwriting input with your finger, stylus or Apple Pencil. It keeps the familiar feel of paper Sudoku while adding useful online tools such as notes, number highlighting and optional mistake checking.

Playing on iPad? Visit the dedicated Apple Pencil Sudoku page for the full handwriting-focused experience.

Why choose medium Sudoku?

Balance

The ideal middle ground

Medium Sudoku gives you a proper logic puzzle while remaining approachable for regular play and steady improvement.

Focus

Better logic practice

Medium puzzles encourage stronger scanning, candidate marking and elimination across rows, columns and 3x3 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 difficulty is not just about removing more starting numbers. A good Sudoku puzzle is defined by the logic needed to solve it. Medium Sudoku usually requires more careful checking than easy puzzles, including pencilled candidates, hidden singles, naked singles and basic elimination patterns.

A well-designed medium Sudoku puzzle should make you pause and think, but it should not rely heavily on advanced techniques such as X-Wing, Swordfish, XY-Wing or forcing chains. It should reward structured logic rather than guessing.

Medium Sudoku features

Free

Free to play

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

Daily

Daily medium Sudoku

Try a fresh daily medium Sudoku puzzle and build a consistent solving routine.

Write

Handwriting input

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

Medium Sudoku tips

Start by scanning each row, column and 3x3 box for obvious missing numbers. Once the simple placements slow down, use notes to mark possible candidates. Medium Sudoku often becomes easier when you stop guessing and start checking where each number can 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 habits form the bridge between easier puzzles and more advanced Sudoku solving.

If medium Sudoku still feels too difficult, try beginner Sudoku or easy Sudoku first. If it feels comfortable, move up to hard Sudoku.

Start a medium Sudoku puzzle

A balanced Sudoku challenge for players who want more logic than easy puzzles, without moving straight to advanced difficulty.

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.