Sudoku is a number-placing puzzle based on a 9x9 grid with several given numbers.
The object is to place the numbers 1 to 9 in the empty squares so that each row, each column and each 3x3 box contains each number only once.
There are five Sudoku Puzzles one for each day of the week. Ask reps to sign their completed puzzles so that they may be entered into a prize drawing at the end of the week.