Bingo still centers on marking cards, calling numbers, and spotting patterns,...

https://remote-wiki.win/index.php/Do_You_Have_to_Concentrate_the_Whole_Time_in_Bingo%3F

Bingo still centers on marking cards, calling numbers, and spotting patterns, just as it always has. What’s changed is where you play. Once a game for halls filled with chatter and clinking glasses, bingo now fits in your pocket