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
Prize Bingo a claim and only then will the computer check it and end the game (or reject it if the player has made a mistake). As well as being announced verbally, most prize bingo establishments feature a TV monitor or several that shows the last called number and how many numbers have been called. In addition to this, the consoles often have a small LED display that shows this information when a game is in progress or the number of remaining credits when there is no game in progress. Prize bingo establishments also usually feature a 'floorwalker', whose job it is