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
Bingo card culture. Larger patterns, e.g. a diamond pattern consisting of cell positions B3, I2 and I4, N1 and N5, G2 and G4, and O3, are often used by online Bingo games to permit large number of players while ensuring only one player can win. (A unique winner is further desirable for online play where network delays and other communication interference can unfairly affect multiple winning cards. The winner would be determined by the first person to click the "Bingo!" button (emulating the shout of "Bingo!" during a live game).) In this case the number of unique winning cards is calculated as