To watch the program solve a puzzle, click "Solve." You can enter new puzzles by typing numbers in the text box and clicking "update." I recommend going to websudoku.com, copying a hard puzzle, and cheating to get a fast time.
Future updates include (if I don't get too lazy):
- The program doesn't validate the initial state, so you can enter an obviously unsolveable puzzle and it will waste a fair amount of time trying to solve it. This is my top priority for a fix.
- I'd like to be able to click directly on the image and be able to type in numbers there.
- No guarantees, but you might be able to paste a websudoku.com URL and have it automatically load the puzzle from there.
- Kevin, the director of engineering, discussed some methods to automatically generate new puzzles. I might give that a try. But it's a solver, not a game, so I might not.