If one goes to www.usatoday.com, clicks on LIFE, and then scrolls down to Sudoku and then lets the application load up, one will observe the following:
Upon playing, a green light will light up when a row, column, or 3x3 box is filled in with the numbers 1-9. As the program indicates, this does not mean they are in the right place, but it means that the row, column, or 3x3 box is complete at that moment in time.
It would be nice to see a similar feature some time in the future. in Pappocom's program. I guess this feature could be toggled off in the options for those who don't want it.
Regards,
nj3h