A sudoku can color marking,and top difficult puzzles

[sddr168]

Sudoku 9981 is a Sudoku puzzle game for Windows,with the color marking function and specific method to control candidate number,you can use the advanced techniques of sudoku more conveniently.

You can create, play, print,and solve Sudoku puzzles. Sudoku 9981 has unlimited puzzles for you to play, or you can copy puzzles from newspapers and magazines.
You can also open many more grids from the Internet. The program will help you out when you get stuck as some of the features included are: automatically generate
possible number notes; solve puzzle; highlight where you went wrong.Comprise function of displaying Singles Candidature, Branch function and color panel function,
which are helpful for your using advanced techniques to solve Sudoku puzzles.

Download:
http://www.download.com/Sudoku-9981/3000-2111-10600544.html?part=dl-Sudoku9981&subj=dl&tag=button

See also:
http://www.sudoku9981.com