Generator - Solver - Helper *** The build in SuDoKu-Cracker generator has seven different levels of difficulty and creates only puzzles with a unique solution in very high quality. *** The solver can solve all 9x9 puzzles (e.g. from newspapers and magazines). *** The helper shows/solves the next logical step. *** All puzzles can be printed, exported (e.g. HTML and RTF documents), saved and opened again.