Let the numbers hold your attention for a bit
Unhurried Sudoku
Sudoku is a number puzzle on a 9×9 grid. Fill each row, column and 3×3 box with the digits 1–9, without repeating a digit. This browser version includes pencil notes and an answer check.
One square at a time. The answer isn't going anywhere.
Stuck? Take a breath. One square is enough for now.
Good to know before you start
Do I need to do arithmetic?
No. The digits are symbols: the goal is to place each digit once in every row, column and 3×3 box.
What are pencil notes for?
Use notes to record possible digits in an empty square, then narrow them down as you solve the puzzle.
Can I check my answer?
Yes. Use the check control when you want feedback on the entries you have made. You do not need an account.