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 release added instant creation of new Sudokus (even very hard ones), extended print options including a booklet printer, a new simplified mouse mode, a progress indicator, and much more.
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.
New techniques include Death Blossom, Dual 2-String Kite, and Dual Empty Rectangle. ALS code has been reworked to allow overlapping. Some minor changes were made to the GUI (menu structure). New solver options were added. The homepage now features a guide describing about 70 human-style solving techniques using more than 170 examples.
