90-ball vs 75-ball bingo
90-ball bingo (common in Europe and Israel) — a card with 3 rows and 9 columns, 15 numbers out of 27 cells. There are three winning tiers per game: one line, two lines, and a full house.
75-ball bingo (common in the US) — a 5x5 square card with the letters B-I-N-G-O above it and a free center cell. The winner is whoever completes a predefined pattern — a row, column, diagonal, or special shapes like an X or a frame.