Play Sudoku Online Free

Fill the 9×9 grid so every row, column and 3×3 box contains the numbers 1 through 9 exactly once. Every generated puzzle has one valid solution.

Useful controls

• Select a square and tap a number, or use the keyboard.
• Turn on Notes to keep small candidate numbers.
• Arrow keys move the selection; Backspace clears it.
• A hint fills one square when you get stuck.

Difficulty and best time

Easy, medium and hard remove progressively more clues. Your best clean completion time is stored separately for each difficulty.