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Sudoku & Logic Puzzle
Play seeded Sudoku puzzles whose generated clues are checked for a unique solution.
Fill 1–9 in every row, column and 3×3 box. Each generated puzzle has one solution.
Getting started
Enter digits in empty cells and validate rows, columns and boxes.
Before you use the result
Show or hide the solution for reference; puzzles and entries stay in the current page.
Frequently asked questions
Play seeded Sudoku puzzles whose generated clues are checked for a unique solution.
How do I use Sudoku & Logic Puzzle?
Enter digits in empty cells and validate rows, columns and boxes.
Does this tool upload my data?
Inputs and files are processed in your browser. Page-view analytics do not contain your tool input.
What should I check before using the result?
Show or hide the solution for reference; puzzles and entries stay in the current page.