Play free Sudoku online: fill the 9x9 grid so every row, column and 3x3 box holds 1 to 9, from easy puzzles up to extreme ones.
About Sudoku
Sudoku is the number puzzle everyone knows: a 9x9 grid split into nine 3x3 boxes, with a few numbers already filled in. Your job is to fill the rest so that every row, every column and every box contains the numbers 1 to 9 exactly once.
This version has several difficulty levels and daily challenges. It is the calm opposite of Geometry Dash: no timer pressure unless you want it, just logic.
How to Play Sudoku
- Choose a difficulty from the menu.
- Select an empty cell.
- Enter the number that fits its row, column and box.
- Keep going until the whole grid is solved.
Controls
- Mouse or touch: select cells and numbers.
- Number keys: type a number into the selected cell.
Tips
- Start with the rows, columns or boxes that are nearly full.
- Use notes to keep track of the numbers a cell could still be.
- If a number can only go in one cell of a box, it goes there.
