Sudoku Generator

Generate Sudoku puzzles with different difficulty levels

Frequently asked questions

How does the generator work?▼

The generator creates a valid Sudoku using backtracking: first it fills a complete grid, then removes cells based on the chosen difficulty.

Can I see the solution?▼

Yes. Use the "Show Solution" button to reveal all numbers. You can also download the Sudoku as a PNG image.

Generate custom mazes with different sizes using backtracking algorithm

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Draw a random name from a list with countdown and confetti

Generate unique random numbers within a defined range. Ideal for raffles and games.

Set your starting 11, drag players on the pitch, and save the image to share.