*NEWLY ADDED*

Just added to the site, Sudoku

To play, click the "Sudoku" Tab on the top right toolbar and test your skills.

Sudoku requires no calculation or arithmetic skills. It is essentially a game of placing numbers in squares, using very simple rules of logic and deduction.
Each row of nine cells must contain each of the numbers from 1 to 9 once and only once.
Each column of nine cells must contain each of the numbers from 1 to 9 once and only once.
Each of the nine 3 by 3 boxes of nine cells must contain each of the numbers from 1 to 9 once and only once.