Rules for Doubles Bingo

A standard random starting board for Doubles Bingo.

In this game, the player has a random board of numbers as shown above. On each turn, the website poses the player a math problem which may or may not have an answer visible on the board. The player must then choose a block with the answer visible, or if it isn't visible, press the "Not There" button. If there are multiple blocks with the correct answer, the player may choose any of the correct blocks.

A single correctly marked answer.

If a correct answer was chosen, that block is covered and the turn count is increased. If the player chooses an incorrect answer, or choose the "Not There" button when a valid answer is visible, the incorrect answer will be marked and the mistake count is increased.

Incorrect answers marked.

The game is over when you cover a vertical, horizontal or diagonal line.

A sample bingo.