🎮
Get ready!
Fill the empty cells with digits from 1 to 9 so that every row, every column and every 3×3 box contains each digit exactly once. Start with the rows, columns or boxes that are nearly full.
50 of the 81 cells are filled in at the start, and the par time is 4 minutes. Every round is a freshly generated puzzle, so you never get the same board twice.
Yes. Select a cell and ask for a hint, and the game fills it in. A hint costs 75 points, so the best scores come from solving without them.
Sudoku
Logic puzzle · 5 stages
The gentlest sudoku: 50 of the 81 cells are already filled in, so every empty cell has plenty of clues around it. A 4-minute par to beat.
No account needed — play as a guest and pick a name for the leaderboard after your round.
Five stages, from a half-filled board down to 26 clues. Fewer clues carry a bigger score multiplier.
Tap an empty cell, then a number on the pad — or type 1–9. Each row, column and 3×3 box needs 1 to 9 once.
Tap the same number again, or the eraser, to clear a cell. Stuck? A hint fills the selected cell, for a price.
Finish under the par time for a bonus. Mistakes and hints cost points. Your best goes on the stage's leaderboard.
Sudoku is a logic puzzle on a 9×9 grid divided into nine 3×3 boxes. Fill every empty cell with a digit from 1 to 9 so that each row, each column and each box holds all nine digits exactly once. There is no arithmetic, only reasoning.
The Beginner level starts with 50 of the 81 cells filled, more than half the board. That leaves many rows, columns and boxes with only one or two gaps, which is the best way to learn the first technique: find a cell where only one digit can go, and fill it.
Tap an empty cell, then a number, or type 1 to 9. A wrong digit shows up as a conflict so you can fix it, and if you are stuck, a hint fills the cell you have selected. Your score starts at 1,000 points times the level's multiplier, gains half a point for every second you finish under par and loses a point for every second over. Each mistake costs 50 points and each hint 75. Solve it with no mistakes and no hints for three stars.
When Beginner feels easy, move on to Easy (42 clues), then Medium, Hard and Advanced. Every round is a newly generated puzzle.