Sudoku World lets you play Sudoku on your desktop. It contains over 100,000 puzzles built in and has the following functions:
Easy/Medium/Hard puzzles
Hint feature
Pencil marks
Easy keyboard navigation
Portable usb stick friendly
Only 3MB!
This software is an extension of www.SudokuWorld.be.
System Requirements:
Windows 2000/XP/Vista
500mhz+
128MB Ram Min

The license of this software is Freeware, you can free download and free use this sudoku game software.