Bingo card cards to overcome the difficulty with randomization. There are two types of Bingo cards. One is a 5x5 grid meant for 75-ball Bingo, which is largely played in the U.S. The other uses a 9x3 grid for U.K. style "Housie" or 90-ball Bingo. Players use cards that feature five columns of five squares each, with every square containing a number (except the middle square, which is designated a "FREE" space). The columns are labeled "B" (numbers 1–15), "I" (numbers 16–30), "N" (numbers 31–45), "G" (numbers 46–60), and "O" (numbers 61–75). A popular Bingo myth claims that U.S. Bingo innovator Edwin
National Bingo Game jackpots for the first time and the National Bingo Game introduced the "Big N" – an optional £1 jackpot charge to players which gave them a chance to play for a gold, silver or platinum jackpot which could exceed £1 million. Ticket sales for the jackpot were lower than anticipated and the prize was not won for a number of months, before the National Bingo Game decided to reduce the participation charge to 50p, but make it compulsory from January 2008. As a result of this move 3 millionaires were created in the 6 months that followed, but Gala Bingo's