The most popular bingo games are 75 ball and 90 ball bingo, and although the way of playing is similar in both types, the number of balls that are played during a game and the distribution of the bingo cards varies from one to another.
How are bingo cards generated?
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75-ball bingo
75-ball bingo is the most common bingo game in North America. In this version, the cards have a total of 24 numbers, divided into 5 columns. The columns are defined by each of the bingo letters, B, I, N, G, O, and in each of them are the numbers within a specific range. In column B are the numbers that go from 1 to 15, in I they go from 16 to 30, in N from 31 to 45 without a number in the third row, in G from 46 to 60 and finally in O they range from 61 to 75. The distribution of the numbers for each column is random.
The combinations of numbers that appear on the respective cards have been calculated in accordance with the Bingo Game Regulations, so the following conditions are met in their calculation:
- The numerical combinations that form columns like the whole of the cardboard are not repeated within the same series.
- A series of cards is made up of strips of 3 cards, and in each strip the 75 numbers are distributed (minus the missing numbers in the third row of column N of each card).
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90-ball bingo
Although 90 ball bingo originates from Europe, it is the one played in most parts of the world. In this version, the cards consist of 27 boxes distributed in three horizontal rows, each of which contains five numbers between 1 and 90, both inclusive, and placed in such a way that the first column includes 1 to 9; the second, from 10 to 19; the third, from 20 to 29; and so on until the ninth column, which will comprise from 80 to 90.
Each card shows its number and the series to which it belongs, fulfilling the requirement that the cards that make up the series are all different in their combinations of line and bingo.
The combinations of numbers that appear on the respective cards have been calculated in accordance with the Bingo Game Regulations, so the following conditions are met in their calculation:
- There are not three numbers in a column, and the numerical combinations that form lines like the entire card are not repeated within the same series.
- The card sets contain all 90 numbers, divided into strips of six cards that go consecutively one after the other until the series is completed.
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