https://sourceforge.net/projects/hodoku/
Sudoku generator/solver/analyzer written in Java (English ,German and Chinese). Lots of human style techniques (singles, subsets, LCs, fish, wings, uniqueness, coloring, chains, ALS), powerful analyzer (manage multiple solutions for one sudoku). Includes Learning and training modes and a booklet printer.
- Completely scalable, self explanatory user interface
- Create random puzzles in five configurable difficulty levels
- Supports over 70 human style solving techniques
- Fully configurable using dozens of options
- Powerful booklet printer / extended print options
- User manual and solving techniques guide available on the home page
