Experience the classic Sudoku game on the go with USB Sudoku Portable! No installation required—just plug in and play. Challenge yourself with three difficulty levels: easy, medium, and hard. Your progress is saved automatically, allowing you to resume your game anytime. Track your progress or view solutions with ease. Customize the interface to your preference by adjusting the size of the numbers. Enjoy a seamless and personalized Sudoku experience wherever you are. Perfect for Sudoku enthusiasts seeking convenience and flexibility. Get your USB Sudoku Portable today and never miss a puzzle!

I like the concept of USB Sudoku, but I have mixed feelings. Some puzzles are a breeze, while others drive me crazy. Overall, it can be fun, but I wish there was a better range of difficulty!