Classic Sudoku for players of all skill levels with the following features. 1. Free 2. Simple and easy to use interface. 3. Great for all skill levels: from beginner to expert 4. Unlimited puzzles to play 5. Unlimited hints for challenging puzzles 6. Pencil marks (aka Notes), only commit when you know you’re right 7. Auto-Save: safely stop and resume, anytime Get your Sudoku game on and stimulate your brain! Full set of Sudoku * * game features: Customize Your Sudoku Board - 17 great looking customizable themes like wooden boards, night mode, modern, etc. - Unlock special Sudoku themes and customize the board however you want. Check Your Stats - Improve your Sudoku skills by checking your Stats. - Move up the ranks and get rewarded with Mastery Titles for completing puzzles. - See stats on how many Games Played, Mistakes Made, Time Played and Total Wins. Sudoku Game Modes - 4 Difficulty levels. Play puzzles as: beginner, easy, medium, hard. - Autosave lets you stop and resume your game as often as you like. Free Help on Challenging Puzzles - Pencil marks (a.k.a. Notes) – Place possible numbers in pencil mode, if it’s not the right solution just re-tap that number to remove it. - Use Helpful Hints when you really need some help solving a puzzle. Become a Sudoku Grand Master with this classic Sudoku game!