Sudoku is a puzzle with one rule:
each row, column, and box must have the digits 1 to 9
"Your job" is to try to figure out what numbers go in the missing cells.
Here's an example sudoku:
That's it!
Here, try to solve the easiest sudoku ever:
The glossary will also appear at the bottom of the page. It defines words like "group" (a row, column, or box)