Bingo card S. Lowe contracted Columbia University professor Carl Leffler to create 6,000 random and unique Bingo cards. The effort is purported to have driven Leffler insane. Manual random permutation is an onerous and time-consuming task that limited the number of Bingo cards available for play for centuries. The calculation of random permutations is a matter of statistics principally relying on the use of factorial calculations. In its simplest sense, the number of unique "B" columns assumes that all 15 numbers are available for the first row. That only 14 of the numbers are available for the second row (one having been
National Bingo Game the club. However, as these are independent agreements made between players the National Bingo Game Association, as operator of the game, has no official role in resolving such disputes. Over the past 25 years there have also been a couple of occasions where underage players have gained admission to a participating club and purchased tickets for the National Bingo Game. As clubs are managed by independent operators the National Bingo Game has no direct control over this issue, however, operators are extremely diligent in trying to ensure no underage gambling takes place. Players participating in the National Bingo Game must