Category: PHP Script Codes > 9x9 online sudoku
The complete service is contained in an unique HTML page plus 9 images containing numbers 1 to 9. To play this version only the mouse is required (no keyboard). Each sudoku has an unique solution. The service will not allow to place a number in an incorrect position. Six difficulty levels are available, and for each sudoku the solution is available. May be placed in personal websites (just upload the files).