Create any number of Sudokus and solve them. Store Sudokus for in-depth study.
Solvability guaranteed.
Drag digits from the palette or click on the board and wait for the desired
digit to appear. Neither method will let you place double digits.
Sudoku was initially written by Marko Riedel. The original homepage is gone.
He was so kind to allow giving this little game a new home on GAP.