Natural
Write directly into the grid
Use Apple Pencil, stylus or finger input to write numbers into Sudoku cells naturally, instead of constantly switching between the puzzle and a keypad.
Apple Pencil Sudoku online
Apple Pencil Sudoku
Play free online Sudoku you can write in. Use Apple Pencil, stylus or finger to write numbers directly into the grid — like paper Sudoku, but cleaner, smarter and without the rubber shavings.
Play Sudoku like paper, but less messy
SudoSketch is built for people who like the feel of paper Sudoku but want the convenience of playing online. Instead of only tapping keypad buttons, you can write numbers directly into the Sudoku grid using Apple Pencil, stylus or finger handwriting input.
It keeps the natural solving rhythm of paper Sudoku while adding useful digital tools such as notes, highlighting, optional mistake checking, daily Sudoku puzzles and multiple difficulty levels.
The result is a cleaner, smoother way to play Sudoku online. No printed sheets, no smudges, no blunt pencil, and no mysterious pile of half-finished grids on the kitchen table.
Why handwriting Sudoku feels better
Paper Feel
Like paper Sudoku
SudoSketch keeps the satisfying feel of writing into a real Sudoku grid, while giving you digital tools that paper cannot.
Cleaner
Less mess, more solving
No eraser marks, no crossed-out disasters and no pencil case admin. Just clean Sudoku solving in your browser.
Online Sudoku with handwriting input
Most online Sudoku games rely entirely on button input. That works, but it can interrupt the flow of solving, especially when you are working through candidates and moving quickly around the grid.
SudoSketch takes a more natural approach by allowing handwriting recognition directly inside the Sudoku grid. On iPad, Apple Pencil makes this feel closer to traditional paper Sudoku while still keeping the benefits of an online puzzle app.
You can still use normal keypad controls whenever you want. The aim is not to force handwriting, but to give Sudoku players a better, more natural option.
Apple Pencil Sudoku features
Free
Free online Sudoku
Play Sudoku online for free with no download, no account and no app store faff.
Daily
Daily Sudoku puzzles
Solve fresh daily Sudoku puzzles and compete for clean leaderboard times across different difficulty levels.
Tools
Notes and checking
Use notes, highlighting and optional mistake checking when you want a little help keeping the grid under control.
Sudoku for iPad, tablet and mobile
SudoSketch works directly in your browser across iPad, iPhone, Android, desktop, laptop and tablet devices. Apple Pencil and stylus support are available where supported by the device and browser.
The interface is designed to stay clean and responsive while solving, helping you focus on the puzzle rather than fighting the controls.
Whether you are solving a quick daily Sudoku or working through harder logic puzzles, handwriting input gives the experience a more natural, paper-like feel.
From easy Sudoku to harder logic puzzles
SudoSketch includes multiple Sudoku difficulty levels, from Beginner and Easy Sudoku through to Medium, Hard, Master and Insane puzzles.
Easier puzzles are designed for relaxed solving and confidence building, while harder puzzles require deeper logic, better candidate tracking and more patience than is strictly reasonable for a square full of numbers.
The handwriting input works across difficulty levels, so you can keep the same natural solving style whether you are learning Sudoku or taking on advanced grids.
Start playing Apple Pencil Sudoku
Sudoku that feels like writing on paper, without turning your desk into a crime scene of pencil dust and bad decisions.
Apple Pencil Sudoku FAQ
Can I use Apple Pencil with SudoSketch?
Yes. SudoSketch supports Apple Pencil handwriting input directly inside the Sudoku grid.
Can I write directly into the Sudoku grid?
Yes. You can write numbers directly into Sudoku cells using Apple Pencil, stylus or finger input.
Does handwriting input work on iPad?
Yes. SudoSketch is designed to work in the browser on iPad, with Apple Pencil support where available.
Can I still use normal keypad controls?
Yes. Standard keypad input, notes and solving tools are also available.
Is SudoSketch free?
Yes. You can play Sudoku online for free without downloads or accounts.