Sudoku

 
Sudoku is one of the world’s most popular puzzle games, spreading from its origins in Japan to become a regular part of everyday life for people of all ages located all over the world. The standard Sudoku puzzle contains 81 cells; the 81 cells are formatted in a 9 by 9 grid within a larger 9 by 9 grid. Read more to learn Techniques to Help You solve a Sudoku puzzle.