I am genuinely impressed with the Sudoku Classic Easy Puzzle Free Brain game available on Google Play Store. This app, with its package name sudoku.classic.easy.puzzle.free.brain, has rapidly become my go-to choice for Sudoku puzzles.

Firstly, the user interface is very intuitive and user-friendly. It's straightforward to select your preferred difficulty level and navigate between games. The game design is clean and uncluttered, making it easy to focus on the puzzle at hand.

The game offers a wide range of difficulty levels from easy to hard, ensuring that both beginners and seasoned Sudoku solvers are catered to. The easy puzzles are perfect for beginners, teaching the basics of Sudoku in a fun and non-intimidating way. The harder puzzles, on the other hand, offer a stimulating challenge even for experienced players.

One of the app's standout features is its unique hints system. If you're stuck on a puzzle, the app provides helpful hints to nudge you in the right direction without giving away the solution outright. This strikes a great balance between assisting and challenging the player.

Another highlight is the statistics feature, which allows you to track your progress and improvement over time. You can see how many puzzles you've solved, your fastest times, and more. It's very satisfying to see your progress visualized in this way.

Overall, Sudoku Classic Easy Puzzle Free Brain combines a great user interface with a wide range of difficulty levels and useful features. It's a must-have for any Sudoku enthusiast, or anyone looking to give this classic puzzle game a try. Highly recommended!