Bingo (United Kingdom) but 'red seventeen'. This means that the numbers can be called a lot faster by the caller (usually around 1.5 seconds a number). In most UK bingo clubs, including most Gala Bingo clubs, mechanised cash bingo is played on a plastic board which has small windows which are used to cover up the numbers when they are called. In all Mecca Bingo clubs, bingo cards are built into the table tops and the numbers are covered up using small plastic chips. The company involved will then use a computer (called a stage rig controller) to automatically take a "participation fee"
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