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Sudoku
스도쿠 · sudoku · 숫자 퍼즐 · 스도쿠 게임 · sudoku puzzle
Sudoku
Fill 1–9 with no repeats in each row, column, and 3×3 box.
How to use
- 1
Tap an empty cell and enter a number.
- 2
Fill 1–9 with no repeats in each row, column, and box.
- 3
Fill it all to check your solution.
FAQ
Is this tool free?
Yes — it is completely free to use, with no account or sign-up required.
What is this tool?
Fill a 9×9 grid so each row, column, and 3×3 box contains 1 to 9 with no repeats. A fresh puzzle is generated each time, and only puzzles with a single unique solution are served. Choose a difficulty, and duplicate numbers in a row or column are highlighted in red. Everything runs in your browser, free with no install.