How do you play Shut the Box without the box?

How do you play Shut the Box without the box? The first player will roll both dice and add them together. They then flip the tiles (or cards), also called markers (from 1 to 9) that match the sum of the numbers shown on the dice. The game continues until they roll a number that cannot be covered by any combination of the remaining tiles (or cards).

The first player will roll both dice and add them together. They then flip the tiles (or cards), also called markers (from 1 to 9) that match the sum of the numbers shown on the dice. The game continues until they roll a number that cannot be covered by any combination of the remaining tiles (or cards).