Sudoku

How to use this game

Select an empty square and enter a digit from one to nine. Use Notes for candidates, Check for conflicts, or Hint when needed.
Review the live result and use Copy result when you need to share it.

Every row, column and three-by-three box must contain the digits one to nine exactly once. Entries are compared locally with the generated solution.

Select an empty square and enter a digit from one to nine. Use Notes for candidates, Check for conflicts, or Hint when needed.
Every row, column and three-by-three box must contain the digits one to nine exactly once. Entries are compared locally with the generated solution.
Check the displayed result, then copy it if needed.

If a row already contains 7, note the remaining candidates before committing a value.

Does this tool send my inputs anywhere?

No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.

How should I use the result?

Check that the entered units and values match your situation, especially around dates, breaks, and rounding.

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