Solve your grid with confidence
Enter the known numbers, check the grid and find a valid solution with one click.
Enter the known numbers and tapSolve.
Fill in the gridEnter only the numbers you already know.
Select a cell and use the keypad.
Use the keypadChoose a number or clear the selected cell.
On a computer:use the arrow keys to navigate and keys 1 to 9 to fill cells.
Step by step
How to use the solver
- 1Copy the clues
Enter only the numbers already shown in your Sudoku.
- 2Review the grid
Leave cells empty when their numbers are still unknown.
- 3Solve
Use the button to complete a valid grid automatically.
Use the solver to check a game, study strategies or find a logic error.