Prime Sudoku

About Prime Sudoku

Prime Sudoku is a relaxing classic sudoku designed to run even on simple feature phones. Fill the 9×9 grid with 1–9 without repeating in a row, column or box, and choose your difficulty.

Light, fast and perfect for slower devices.

How to Play Prime Sudoku

Choose a difficulty.
Fill cells with 1–9.
Avoid repeats.

Prime Sudoku Tips & Tricks

Use keypad controls if on a feature phone.
Look for single candidates.
Take breaks.

Prime Sudoku FAQ

Does Prime Sudoku work on basic phones?

Yes, it was designed for feature phones.

Are there difficulty levels?

Yes.