Hello everybody!

I was looking for a Soduko software that can import a game from other sources (there are a lot of this type), and can also show a difficulty rating (e.g. gentle, fiendish etc.) for that game. The softwares use some difficulty measurement techinque to generate puzzles of various levels of difficulty. So it would not be any extra work to rate an imported game.

Would anyone suggest any software available for that purpose?(I know that algorithms are available, but I prefer a software, or may be a source code.)