Instructions
Set the grid using values in the drop lists. Press SAVE to set a baseline for the puzzle. Press START to start the timer. If you're stuck - try a HINT. Timer will stop when all numbers matched. RESET will restore the game to the last saved grid.

Sudoku links...
... on Wikipedia
Puzzle Generator

Sudoku

Sudoku (Su-Doku) has proved extremely popular, and is both challenging and rewarding. However, like with all puzzles, the provision of a simple helper can make it a little less tedious without changing the fun factor.

Note:
This helper is provided free for personal use, but is protected by copyright - specifically, you may not duplicate the content in a way that results in it being published on another website without prior written permission.