HoDoKu is a Sudoku generator/solver/analyzer. It has many human-style techniques (singles, subsets, LCs, fish, wings, uniqueness, coloring, chains, and ALS) and a powerful analyzer (manage multiple solutions for one Sudoku).
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
This is a major user interface update. The new features include a completely new mouse interface, a training and practising mode, a history of created puzzles, savepoints, and new sorting options in the "all steps" panel, progress measurement for every step, a backdoor searcher, and much more.
