Sudoku - Class Edition is for beginners and advanced players. It's both a great way to play a relaxing game while keeping your mind active and sharp. Playing Sudoku on mobile is just as good as paper and pencil and sometimes superior because of the ease of erasing, saving and progression. Choose between easy, medium, hard and expert levels with thousands of designed puzzles. Our classic puzzles have all the features you would expect in any Sudoku game including: hints, auto-check and duplicates highlight. You can use any of these features or not, it's up to you! Start easier and work your way to expert level puzzles. Features ✓ Turn on Pencil mode to make notes as on paper. ✓ Highlight duplicates to avoid repeating numbers in a row, column and block ✓ Hints can guide you through the points when you are stuck ✓ Statistics for a wide variety of in-game plays. ✓ Eraser. Get rid of all mistakes ✓ Highlighting of a row, column and box related to the selected cell ✓ Auto-save. If you leave a sudoku unfinished it will be saved. Continue playing anytime ✓ Unlimited Undos. Made a mistake? Just put it back quickly! Highlights • Thousands of uniquely designed puzzles • 9x9 grid • 4 perfectly balanced levels of difficulty: easy, medium, hard, and expert • Simple and intuitive design • Player progression Enjoy this simplistic Sudoku App.