Keep your brain sharp!.Free Puzzle Game is a welcomed and addictive Brain
• Infinite number of Sudoku games by random generation of puzzles
• Fully usable offline
• 4 Sudoku difficulty levels: from EASY to VERY HARD
• Automatic saving & loading of the Sudoku game state
• Achievements and leaderboards using Google Play Games
• Free and offline
Optional help functions:
• Input buttons are dimmed if a number is used 9 times (or more) in the Sudoku puzzle
• Automatic checking whether the newly entered number is correct
• Highlighting of row, column and box of the currently selected field
• Highlighting of all fields which have the same value as the currently selected input button and