From the creators of Natural Selection comes Zen of Sudoku, a relaxing, easy to play version of Sudoku for your PC. Relax with hand-painted Japanese-styled backgrounds, no timer and lush natural soundscapes. Stimulates your brain to keep it healthy and alert. Teaches you the basics of Sudoku through advanced strategies like "naked pairs", "x-wing" and "locked candidates". Play unlimited puzzles, print them to finish offline and enter custom puzzles from other sources. Unlock trophies, backgrounds and more. This product includes portions of the PopCap Games Framework.