Bingo is a game of chance where randomly-selected numbers are drawn and players match those numbers to those printed on cards. The first person to have a card where the drawn numbers form a specified pattern is the winner and calls out "Bingo!" to alert others to the win. Bingo is a game used for legalized gambling in some countries.
Each Bingo player is given a card marked with a grid containing a unique combination of numbers and, in some countries, blank spaces. The winning pattern to be formed on the card is announced. On each turn, a non-player known as the caller randomly selects a numbered ball from a container and announces the number to all the players. The ball is then set aside so that it cannot be chosen again. Each player searches his card for the called number, and if he finds it, marks it. The element of skill in the game is the ability to search one's card for the called number in the short time before the next number is called.
The caller continues to select and announce numbers until the first player forms the agreed pattern(one line, two lines, full house) on their card and shouts out the name of the pattern or bingo. One of the most common patterns, called house in the United Kingdom and Australia and full card or blackout in Canada and the United States, simply consists of marking all the numbers on the card. Other common Canadian and American patterns are single line, two lines, centre cross, L, Y, inner square (4 × 4), roving square (3 × 3), and roving kite (a 3 × 3 diamond). On Canadian and American cards lines can be made horizontally, vertically, or diagonally. Inner and roving squares and kites must be completely filled; roving squares and kites may be made anywhere on the card.
Card Variations
Canadian and American bingo cards are 5 × 5 grids of numbers only; dual dab cards have two numbers in each square. Each space in the grid contains a number, except for the centre square, which is considered filled. The highest number used is 75. The columns are headed with the letters of the word BINGO, and the letter is called with the number — for example, B-10, I-25, N-40, G-55, O-70. Numbers 1 to 15 are assigned to the B column, 16 to 30 to the I column, 31 to 45 to the N column, 46 to 60 to the G column, and 61 to 75 to the O column. In the United Kingdom and Australia bingo cards have three rows and nine columns. Five squares in each row contain numbers ranging from 1 to 90 and the rest are blank. The numbers are usually called quickly, so players rarely play more than one book (six cards). A Bingo Book (a set of six cards) contains all the numbers from 1 to 90, fifteen numbers on each card, five numbers in each row. The first column contains single numbers, the second tens, the third twenties, and so on. Number 90 is placed in the ninth column along with the eighties.
Each card has a unique serial number to permit quick verification by computer.
Article text is from Wikipedia and licensed under terms of GFDL. The original article can be found here.
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