Sudoku - Classic Sudoku Puzzle is a free puzzle game developed by Guru Puzzle Game Studio. It is a perfect way to challenge your brain and improve your logical thinking skills. The game contains four different difficulty levels: Easy, Medium, Difficult, and Expert. It is suitable for both beginners and advanced players.

The game features a simple design with a 9x9 grid. The memo function allows you to take notes while solving puzzles, and the auto-check function helps you find your mistakes in real-time. The game also has unlimited undo and autosave functions, so you can leave the game incomplete and continue playing anytime.

Sudoku - Classic Sudoku Puzzle also includes a daily challenge feature where you can earn special trophies. The game offers a free hint function when you are stuck, and a dark theme that is perfect for playing Sudoku before bed.

Overall, Sudoku - Classic Sudoku Puzzle is a great game for Sudoku lovers and anyone looking to challenge their brain. It is a fun, addictive, and challenging game that will keep you entertained for hours.