Ultimate Sudoku

Play Ultimate Sudoku online for free on Play HTML5 Games for Free. This Puzzle browser game loads instantly with no download required. It also works on mobile devices.

Sudoku Challenge: Exercise your mind with the classic puzzle game, Sudoku. Sharpen your logic and critical thinking skills as you fill the grid with numbers. Can you solve the challenge and become a Sudoku master?

Use your keyboard, mouse, or touch controls to start Ultimate Sudoku and follow the in-game prompts.