How to Play Sudoku

Sudoku is a logic-based, combinatorial number-placement puzzle. In classic Sudoku, the objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids that compose the grid contain all of the digits from 1 to 9.

Focus and Clarity

Lume Sudoku is designed to minimize distractions. No intrusive ads or complex menus—just you and the puzzle.

Progressive Difficulty

Whether you're a beginner or a grandmaster, our adaptive difficulty settings ensure you're always challenged.