There is a free space in the middle of the N column that can be used for making a play live bingo through that space. Each lettered column has its own range of numbers with B having one through fifteen, I has sixteen through thirty, N has thirty-one through forty-five, G has forty-six through sixty and O has sixty-one through seventy-five. A regular bingo consists of a straight line either horizontal, vertical or diagonal and sometime the four corners, depending on the house rules. Special online casino gambling can consist of various patterns of letters, numbers or shapes that can be made in the square grid. The versions are important because it is the square shaped grid of the American version that lends itself to patterns.

The game of bingo that began as the Italian National Lottery in the sixteenth century, developed into two distinct variations of the game. The British version is based on ninety numbers and the American version is based on seventy-five numbers with the game played the same way in each version. The British version is played on rectangular tickets that are nine columns by three rows with five numbers on each row and the rest of the spaces left blank. A regular bingo mecca consists of one line with specials being two and three lines, with the coverall known as housie. The American version is played on a five number by five number playing grid. The grid has the letters of the word bingo across the top.