What is a 9×9 Sudoku puzzle?

A 9×9 Sudoku uses a grid of 9 rows and 9 columns divided into 3×3 boxes. Fill each row, column, and box with 1–9 without repeating.

How hard is Crazy difficulty?

About 20–25% of cells are pre-filled. You'll need strategies like forcing chains, coloring, and trial-and-error. Typical solving time is 60–120+ minutes.

Can I print these puzzles?

Yes! Click the Print button for a clean, printer-friendly version. You can also download a PDF.

Are these puzzles free?

All puzzles on Easy Sudoku Print are 100% free to use, print, and share for personal or educational purposes.