Sudoku Tools
Five small tools for the times you're not just playing. Solve a tough puzzle from a newspaper, generate a new one, check if a grid is valid, or get the next move when you're stuck. Each runs fully on your device.
Solver
Get the answer to any sudoku.
Type in a puzzle from a newspaper or book and see the finished grid.
Open tool →Photo solver
Solve a sudoku from a photo.
Snap a printed puzzle with your camera and we'll read the grid and solve it.
Open tool →Generator
Make a fresh puzzle at any difficulty.
Pick a level and get a new sudoku in one click. Print it or play it.
Open tool →Checker
Is this a valid sudoku?
Paste a layout to find out if it has one solution, none, or more than one.
Open tool →Difficulty rater
How hard is this puzzle?
Get a rough difficulty label for any sudoku you've found.
Open tool →Step-by-step solver
See the next logical move.
Stuck mid-puzzle? Get one move at a time with the technique explained.
Open tool →