Sudoku Generator (Printable)
Sudoku — Medium
About this generator
Each puzzle is created by generating a full valid Sudoku and then removing numbers while ensuring there’s a unique solution. Easy puzzles keep more “givens”; hard puzzles remove more.
- Easy: ~43 givens
- Medium: ~33 givens
- Hard: ~25 givens
Everything runs locally in your browser. No uploads, no tracking.