Welcome to sudo-fu.com, a website dedicated to everything Sudoku. Whether you are a long time enthusiast or are just beginning, sudo-fu.com has got something for you. If you are new to Sudoku, check out the Introduction to Sudoku. If you've been around a while, expand your skills by learning some of the advanced solving techniques taught in the learning section.

Sudo-fu.com is devoted to offering you the most fun and dynamic Sudoku playing experience on the web. Start playing by going to the Sudoku of the day or you can play a random game by clicking Play Sudoku in the side navigation.

Sudo-fu.com provides cool features such as large puzzles (16x16), infinite undo operations, and automatic pencil markings. And the best part is that all services provided on sudo-fu.com are free. So go ahead and get started!