Sudoku Old Version offers classic Sudoku gameplay with easy puzzles for beginners and challenging ones for advanced players. It provides a brain-teasing experience with a variety of features, including the ability to play Sudoku from newspapers, hints for expert levels like Swordfish, and tools for note-taking and error correction. The game offers six levels of puzzles ranging from Simple to Handcrafted "Sudoku Master" levels, ensuring endless gameplay possibilities.

Players can enjoy Game Center Achievements, Leaderboards, and a range of solving and analysis tools. With a user-friendly interface and various hints available, Sudoku Old Version is a comprehensive Sudoku experience suitable for players of all skill levels.