Recently when I'm tired to solve game of sudoku, I always use this software to solve game.
It's so easy
Just input game and click solve.
You may try it:)
It's a sodoku for windows. Support "Print to Paper"
Only for Miscrosoft windows.No trial time limition with Very Easy/ Easy mode
Here is the webpage:
http://www.readmesoft.com/sudoku.htm
Here is the download link:
http://www.readmesoft.com/soduku.zip