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Prime Sudoku

A classic number-placement puzzle played on a 9×9 grid, where each row, column, and 3×3 box must contain the digits 1 to 9 exactly once. Pick a difficulty level to start, then tap a cell and select a number to fill it; an erase button clears mistakes. It runs in the browser on both desktop and phone, with a portrait layout, and requires no installation.

Prime Sudoku — play free online

About this game

Sudoku is a relaxing yet challenging number puzzle game made for Jio feature phones. Fill the 9×9 grid with numbers 1 to 9 without repeating any in a row, column, or 3×3 box. Choose from different difficulty levels and test your logic skills.

How to play

Start Sudoku by selecting a difficulty level Fill each row column and 3x3 grid with numbers from 1 to 9 without repeating any number Tap a cell to select it then choose a number to fill in Use the erase button to clear mistakes The game ends when a

Questions people ask

Can I play Prime Sudoku online for free?
Yes. Open Prime Sudoku in this browser and press Play. There is no download or account required.
Do I need to install Prime Sudoku?
No. The game runs inside the browser page, so there is nothing to install.
Does Prime Sudoku work on mobile?
This game does not list touch controls. For the best experience, use a keyboard and mouse.