Sudoku

-When i subscribing http://www.suntimes.com,there is a section named Sudoku,with my curious i click into this section,and here it is,it a puzzle game,and i believe some of you may play this before,here i release this Sudoku for those who haven`t played this before just like me,and hope you can enjoy it.

What is Sudoku?

It's big in Japan, huge in Europe and sweeping America. Now, Sudoku (Japanese for "single number") lands in the Chicago Sun-Times.