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Sudoku Generator

Generate and print random Sudoku puzzles on A4 paper, with selectable difficulty and custom grid layouts.

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How to Use

Choose the difficulty level: easy, medium or hard.
Pick how many puzzles fit per row; the page fills automatically. Click Generate to create a new set of puzzles.
Preview the page; toggle the solution to check the filled answers.
Print the A4 page or download it as an image.

Verified Solutions – Every puzzle is generated from a complete solution and double-checked for a unique answer, so it is always solvable.
No Duplicates – All puzzles on a page are guaranteed to be different.
Auto-Fill Layout – Choose 2 or 3 puzzles per row and the sheet fills with as many rows as fit.

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