Su Doku Solver
I never got the hang of Su Doku puzzles. I did a few and found them fairly enjoyable, but they never became a particular favourite of mine, so I never mastered them. So instead of spending time carefully teasing these puzzles apart, I decided just to write a program to solve them and be done with it.
This Su Doku Solver simply solves these puzzles by brute force. To set the puzzle up, use the two mouse buttons to increase or decrease the value in a particular square - the right mouse button to increase the number by one, and the left mouse button to decrease it.