Our Sudoku Solver Online can solve Simple to Diabolic Sudoku as we define them. Means, one logical solution must be available.
Please enter your Sudoku data and press "Start" or import a Sudoku-string using the "Import" button.
To import a Sudoku from our Online Sudoku
please use the export function on the Sudoku page and copy the string into the import box. After that press import and solve.
You can also just use the "To Solver" Button to tranfer the current sudoku to the solver. Once a sudoku has been loaded and validated you can use the stepper facility to understand each solving step and see which technique and where it applies exactly.