You can use this to play completely randomly generated 3×3 Sudoku puzzles of varying difficulty, and can cooperate with others on the same puzzle if you'd like.
How to Play Sudoku
Left Mouse Button - Select a square
Arrow Keys - Move selection cursor
Keys 1 to 9 - Fill in a square with the corresponding number
0 - Erase the selected square
May 9 2009, 9:00 pm