Natural
Write directly into the grid
Handwriting numbers into Sudoku cells feels faster, more intuitive and much closer to traditional paper Sudoku solving.
Apple Pencil Sudoku online
Apple Pencil Sudoku
Play Sudoku online using Apple Pencil with natural handwriting input. Write directly into the grid like real paper Sudoku, but without needing an eraser every thirty seconds after one catastrophic mistake.
Play Sudoku with Apple Pencil
SudoSketch is designed around handwriting Sudoku input. Instead of tapping tiny buttons repeatedly, you can write numbers naturally into the Sudoku grid using Apple Pencil, stylus or finger input.
The experience feels much closer to solving Sudoku on paper while still giving you modern features like notes, highlighting, mistake checking and daily challenges.
Whether you are solving beginner Sudoku casually on the sofa or descending into full tactical warfare against an insane Sudoku puzzle at 1am, handwriting input simply feels better.
Why Apple Pencil Sudoku feels better
iPad
Built for Apple Pencil
SudoSketch is optimised for iPad and Apple Pencil interaction while still supporting desktop, mobile and stylus play.
Flow
Stay focused while solving
Writing directly into the puzzle helps maintain solving rhythm without constantly breaking concentration to hit keypad buttons.
Online Sudoku with handwriting input
Most online Sudoku games rely entirely on digital keypad input. SudoSketch takes a different approach by allowing direct handwriting recognition inside the grid itself.
This makes Sudoku feel more tactile and more natural, particularly on iPad using Apple Pencil. Candidate notes, solving paths and corrections feel closer to real paper solving rather than fighting a spreadsheet disguised as a puzzle game.
The system supports multiple Sudoku difficulty levels including Beginner Sudoku, Easy Sudoku, Medium Sudoku, Hard Sudoku, Master Sudoku and Insane Sudoku.
Apple Pencil Sudoku features
Free
Free online Sudoku
Play unlimited Sudoku puzzles online for free with no downloads or accounts required.
Daily
Daily Sudoku puzzles
Solve a fresh Sudoku puzzle every day and compete for leaderboard times.
All Levels
Every difficulty supported
From beginner-friendly grids to utterly unreasonable Sudoku horrors.
Sudoku for iPad, tablet and mobile
SudoSketch works directly in your browser across iPad, iPhone, Android, desktop 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 maintain focus during longer Sudoku sessions and advanced puzzles.
Whether you are solving quick daily Sudoku puzzles or grinding through advanced Master and Insane Sudoku grids, handwriting input gives the experience a far more natural feel.
Start playing Apple Pencil Sudoku
Finally. Sudoku that behaves like actual Sudoku instead of a calculator from 2004.
Apple Pencil Sudoku FAQ
Can I use Apple Pencil with SudoSketch?
Yes. SudoSketch supports Apple Pencil handwriting input directly inside the Sudoku grid.
Does handwriting input work on iPad?
Yes. SudoSketch is designed to work smoothly on iPad with Apple Pencil support.
Can I still use normal controls?
Yes. Standard keypad input and solving tools are also available.
Is SudoSketch free?
Yes. You can play Sudoku online for free without downloads or accounts.