Unlimited number puzzles
Sudoku
Fill every row, column, and box with 1 through 9.
Time0:00
Points—
How scoring works
Difficulty sets the base score and par time. Faster solves earn a bounded time bonus; each unsuccessful check subtracts a difficulty-scaled penalty.
Generating a fresh grid…
Each fast-generated board comes from a reviewed solvable seed. Your unfinished grid stays on this device.