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Get ready!
26 of the 81 cells are filled in at the start, and the par time is 15 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.
No. Sudoku runs in any web browser on a phone, tablet or computer, and you can play as a guest. Pick a name at the end to put your time on the leaderboard.
Sudoku
Logic puzzle · 5 stages
Advanced sudoku, for experienced solvers: 26 clues, a 15-minute par and two and a half times the points.
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 Advanced level starts with only 26 of the 81 cells filled, the fewest in the game. Expect to keep careful track of the candidates in every cell, and to make progress a few digits at a time.
The par time is 15 minutes, and the level scores two and a half times the points of Beginner. 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.
A new puzzle is generated every round, and the Advanced leaderboard shows who solved fastest with the fewest mistakes.