Rules of BINGO
There's 75 bingo balls, from B-1 to O-75. The game master takes random balls and tell their numbers to the players. Every time a player have one of the numbers on his bingo card, he must put a token on it. If he makes a full line of token or some special combinations (depending on the tour), the player must yell an annoying BINGO! to tell everyone he won. Here's an example of classic 5x5 bingo card:

.-----------------------------.
|  B  |  I  |  N  |  G  |  O  |
|-----+-----+-----+-----+-----|
|  4  | 22  |  35 |  58 |  72 |
|-----|-----|-----|-----|-----|
|  12 | 18  |  33 |  47 |  64 |
|-----|-----|-----|-----|-----|
|  7  | 19  | FREE|  49 |  70 |
|-----|-----|-----|-----|-----|
|  5  | 24  |  43 |  57 |  69 |
|-----|-----|-----|-----|-----|
|  10 | 29  |  30 |  59 |  66 |
'-----'-----'-----'-----'-----'


Depending on the tour, the game master will tell the players if they have to fill either a full line, the 4 corners or a full card to win.