British bingo is a JavaScript British-style bingo game. (A British bingo board has 3 rows, 9 columns, and 15 numbers.) The game simulates the other players. Players make mistakes. They forget to mark numbers and mark the wrong numbers. Players chat. (For example, saying they only have a few numbers left, or telling you when you have forgotten to mark a square.) Players leave, join, and re-join between and during games.