Sudoku Master provides three levels viz. easy, intermediate and expert. You can also save the game in the middle and resume it later on. Sudoku Master improves concentration and helps to reduce anxiety and stress. It also promotes a healthy mindset by helping you develop problem-solving skills. Sudoku Master promotes a healthy competition and helps to analyze the relation between the whole and the part. Research says playing Sudoku regularly you can boost your concentration and focus, prevent or ease depression, dementia, and even Alzheimer's disease according to some studies. Sudoku is good for any age because Sudoku Master develops mental abilities and keeps them in good condition. Sudoku Master is a highly addictive game with no side-effects whatsoever and while it may involve a person deeply into it, their brains will be thankful.