Where is the library of puzzles kept?

A. This depends on your version of Windows:

Windows 95, 98, ME C:\SadMan Software\Sudoku\
Windows NT4 C:\Winnt\All Users\Application Data\SadMan Software\Sudoku\
Windows XP, 2000, 2003 C:\Documents and Settings\All Users\Application Data\SadMan Software\Sudoku
Vista I don't know!
Windows 7, 8, 10 C:\Program Data\SadMan Software\Sudoku
What People Say

We enjoy the program and the ease it allows for us not to have to enter all the possibility numbers manually. GOOD JOB
Roger Galvin, Connecticut
More …

No malware No spam
McAfee Site Report
Web of Trust