Fun free sudoku puzzles Perfect for any player beginner or expert with easy, medium and hard options. Play sudoku anywhere, on your mobile or tablet. All puzzles are well balanced and will exercise your brain through logical thinking and short-term memory usage. Features ✏️ Hundreds of puzzles with more constantly added ✏️ Pencil option to make notes - like with paper! ✏️ Score tracking system ✏️ Duplicate highlighting ✏️ Undo and erase options ✏️ Hints to help you when stuck ✏️ Game timer You can also play online at swiftsudoku.com. Download the free app and start enjoying stimulating sudoku puzzles straight away.