100 different Sudoku puzzles in five degrees of difficulty from very easy to very hard. The rules for solving a Sudoku are simple: Each row, column and region must contain the numerals from 1 through 9 exactly once. The Puzzles are in Adobe PDF file format and have not to be installed. You can easily print and then work them out with pencil and paper.
i really luv sudoku's because they are really challenging. my teacher had started to give it to us as a warm-up but then i got really interrested in them and started to do them from the news paper. now i am really addicted.my friends like to do them too. we all have fun doing it as individuals.