Sudoku One: 5,500 Puzzles

5,500 Sudoku puzzles across 11 carefully graded difficulty levels, from your first game to expert challenges. Sudoku One lets you play at your own pace with a clear grid, practical pencil notes and several types of help when you get stuck. Each level contains 500 puzzles, for a total of 5,500 original grids. MAIN FEATURES • 11 progressive difficulty levels • 500 puzzles in every level • Pencil notes to keep track of candidates • Automatic removal of notes that are no longer possible • Check whether the grid contains an error without revealing its location • Display errors when you want a more direct check • Use a hint to keep moving forward • Undo up to 100 actions • Automatic saving of your current game • Tap the timer to hide or show it • Clear interface for phones and tablets Every puzzle has a single solution and can be solved with logic. The easier levels are suitable for new players, while the most difficult levels offer a serious challenge to experienced Sudoku fans. ADVERTISING AND PUZZLE UNLOCKS Some puzzles can be unlocked with coins or by choosing to watch a rewarded video ad. Rewarded ads are optional and are shown only after you select that option. Questions or suggestions? You can contact us directly from the app.