Bingo card of Bingo a winning card may be the first person to complete row #3. Because the "N" column contains a free space, the maximum number of cards that guarantee a unique winner is (15*15*15*15) = 50,625. Because the players need to only focus on row #3, the remaining numbers in rows #1, #2, #4, and #5 are statistically insignificant for purposes of game play and can be selected in any manner as long as no number is duplicated on any card. Perhaps the most common pattern set, known as "Straight-line Bingo" is completing any of the five rows, columns, or
Bingo card (15*(15*14)/2) = 260,465,625 (260 million). The division by two for each of the "I", "N", and "G" columns is necessary to once again remove redundant number combinations, such as [31,#,#,#,45] and [45,#,#,#,31] in the N column. In UK bingo, or Housie, cards are usually called "tickets." The cards contain three rows and nine columns. Each row contains five numbers and four blank spaces randomly distributed along the row. Numbers are apportioned by column (1–9, 10–19, 20–29, 30–39, 40–49, 50–59, 60–69, 70–79 and 80–90). Bingo card Bingo cards are playing cards designed to facilitate the game of Bingo in its various