About Prime Sudoku — Gameplay & Story
Welcome to the open spaces of the Prime Sudoku game, where a set of Sudoku puzzles is presented. You can choose the difficulty of the game: easy, medium, hard and expert. The size of the field does not change, it remains stable: 9X9 cells. But the number of cells initially filled with numbers varies. The more difficult the level, the fewer numbers will appear on the field at the beginning of the game. The field is divided into nine boxes measuring 3x3 squares. Each of them should not contain two identical numbers. First, mark a place to place the number, and then select it on the right panel in Prime Sudoku. If the choice is incorrect, the number will turn red.
Platform
Browser Desktop , Mobile and Tablet
Release
17 january 2026
Last Update
17 january 2026