Sudoku 9981 - 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 easily.We recommend you try the Sudoku game.

• Print unlimited Standard sudoku puzzles to PDF file.
• Print unlimited Samurai sudoku puzzles to PDF file.
• Candidates Support

The Samurai Sudoku puzzles is another variation of the original Sudoku Puzzles. It has a unique solution that can be reached logically without guessing.
It's fun. It's challenging. It's addictive!

Sudoku, sometimes spelled Su Doku(sudoko,sodoku), is a placement puzzle, also known as Number Place in the United States.

• Enter digits from 1 to 9 into the blank spaces.
• Every row must contain one of each digit. So must every column, as must every 3x3 square.
• It has a unique solution that can be reached logically without guessing.
• It's fun. It's challenging. It's addictive!