With Sudoku Classic now you have the famous logic puzzle always with you - for free and offline. Whether you’d like to relax or keep your mind active - pass your free time in a pleasant way. More than 60,000 Sudoku puzzles guarantee incredible gameplay. Six different levels of difficulty, additional helper functions, track your progress with statistics, celebrate your achievements and conquer the leaderboards. Playing Sudoku on the artphone is as good as with a real pencil and paper. Features: • Free and fully usable offline • More than 60,000 Sudoku puzzles • 6 Sudoku difficulty levels: from BEGINNER to EVIL 17 • Solve puzzles automatically with auto-solver • Notes as on paper • Eraser for getting rid of all mistakes • Achievements and leaderboards using Google Play Games • Statistics to track your progress for each difficulty level: analyze your best times • Night Mode theme • Optimized for Smartphone and Tablet Optional helper functions: • Input buttons are highlighted if a number is used 9 times (or more) in the Sudoku puzzle • Highlighting of row, column and box of the conflicted entered numbers • Highlighting of all fields which have the same value as the currently selected input button • Additional random hints per game Train your brain with Sudoku app anywhere, anytime!