Sudoku FAQ
Quick answers for the most common Sudoku questions.
Short, sweet answers — plus links if you want to go deeper.
New to Sudoku? Read How to Play.
Common Questions
What are the bold, tinted numbers?
Those are the given clues. They are fixed and cannot be changed.
What does Pencil Mode do?
It lets you jot small candidate numbers without committing to a final answer.
What does Show Mistakes do?
It highlights incorrect entries so you can fix them as you go.
Are hints available?
Not yet. The Hint button is visible but currently disabled.
What does Solve do?
It fills in the full solution and ends the current run.
Does Sudoku save my progress?
Yes. Your current puzzle resumes in the same browser.
What difficulty levels are available?
Easy, Medium, and Hard.
Is there a daily puzzle?
Yes. You can play the daily puzzle at /sudoku/play/daily.
More Coming
We are planning more features across all of our games. Thanks for playing and helping us shape what comes next.
Want more tips? Visit Sudoku Help.