Sudoku Coach
Sudoku that teaches you to think, not just to fill in cells. Ask for a hint and the coach explains the reasoning step by step before applying it. Four modes, five levels and a daily challenge. No account needed.
Play nowGet it on Google PlayFree to play · No sign-up · Works on phone, tablet and computer
Play Sudoku Coach in your browser
Your game and statistics are saved in this browser. Tap or click a cell, then pick a number; use Notes to pencil in candidates and Hint to let the coach explain the next step.
How to play
- Pick a mode and a level: Classic 9×9, Quick 6×6, Round Sudoku or Sudoku X, from Beginner to Expert.
- Tap a cell and then a number. Turn on Notes to write small candidate numbers instead.
- Every row, column and block must contain each digit once. In Sudoku X the two diagonals count too, and in Round Sudoku the rings and sectors do.
- Stuck? Tap Hint: the coach explains why a number fits before it applies it. Each game starts with three hints.
Four ways to play
Classic 9×9
The timeless puzzle, with five difficulty levels from Beginner to Expert.
Quick 6×6
Games of two to five minutes, perfect for a break.
Round Sudoku
A unique circular board with rings and curved sectors.
Sudoku X
Both diagonals must also contain the digits 1 to 9.
A coach that explains
Difficulty is not just about how many cells are empty: it depends on the techniques you need, from Beginner, solved with single candidates only, to Expert, which demands pairs and advanced patterns. When you ask for a hint, the coach shows the technique in words before applying it, so you learn it.
Daily challenge and statistics
A new puzzle every day, the same for everyone. See your games played, win rate, average time and perfect wins, your streak of consecutive days and a monthly calendar.
See it in action
Frequently asked questions
Is Sudoku Coach free?
Yes. It is free to play and is supported by advertising.
Do I need an account?
No. There is no sign-up. Your progress stays in this browser.
Is my progress shared with the Android app?
No. The website and the Android app keep their own progress and statistics.
What if I clear my browser data?
Your saved game and statistics are deleted, because they are stored in your browser’s local storage.
What happens when I run out of hints?
On the website there are no ads to earn extra hints, so start a new game for fresh hints. In the Android app you can watch a short ad to earn one more.
Which languages are available?
English and Spanish. The game follows your browser language and you can change it in the settings.
Is there an Android app?
Who makes Sudoku Coach?
Sudoku Coach is made by Mirelto Studios in Ireland. Read the privacy policy.
Sudoku Coach is also free on Google Play.