Roll the dice. Add them up.
Close any tiles that sum to your roll. Tap them, then hit Close.
Keep rolling. Your turn ends when no tiles can make your roll.
Score is the tiles left over — lower is better. Close them all to Shut the Box.
Rolled an 8? Pick any open tiles that add up to it — here, 3 + 5.
Turn's over — 3 + 5 + 7 = 15. Your score is what's left open. Lower is better.
One tile left is Almost Shut — the whole game builds to this moment.
When everything left is 6 or lower, you can roll one die instead of two — a guaranteed 1–6 instead of a 2–12 spread.