Happy Sudoku

A cute and relaxing Sudoku game with 3 difficulty levels, timed challenges, and leaderboards

Happy Sudoku is a lightweight Sudoku game designed for quick and enjoyable play right from your browser. The interface is bright, playful, and easy to use, making it perfect for short breaks, casual puzzle sessions, or daily brain training. When you click the extension icon, the game opens in a dedicated window so you can start playing immediately. Choose from Easy, Normal, or Hard mode, challenge yourself with the built-in timer, and track your recent local scores by difficulty. Features: - 3 difficulty modes: Easy, Normal, Hard - Dedicated game window for focused play - Built-in timer for every round - Local score records by difficulty - Cute and friendly cartoon-style interface - No sign-in required Whether you are a beginner or a Sudoku fan chasing better times and scores, Happy Sudoku offers a fun and polished puzzle experience.