The Freepress required the call numbers to remain readable in order to claim the prize.
The call numbers were published each day, Monday through Friday, with bonus numbers on Wednesdays and Thursdays.
This newspaper used a logo inside of a circle instead of the letter “O” so that the name of the competition was not “Bingo” in order to comply with Minnesota state laws.
They also placed their sponsor’s logo in the free space in the center. The control number was then placed just outside the free space box.
Buffalo Wild Wings made very effective use of their advertising by adding a coupon and printing their entire menu on the back of the card.