Well… an online sudoku solver web app using SpringMVC. Taking our local JUG’s Sudoku Coding Challenge to the next level seemed like a pretty good waste of time to me… so there you go. My solver uses very basic heuristics and has no brute force logic yet. Even so, it’s manage to solve all but the most evil computer generated Sudokus that I’ve thrown at it.
As an aside, if you’re in the market for some web templates for your app, I can really recommend oswd - open source web design as an awesome site to browse. Being the king of the FrankenWebApp I’ve found it invaluable.