Your goal is to flip down all nine tiles numbered from 1 to 9. Each turn, you roll two dice and flip down any number of tiles that add up to the same number as the sum of your dice. After you have flipped down the 7, 8, and 9 tiles, you may choose whether to roll one or two dice. You win the game if you flip down all nine tiles! But if you ever can't flip down a combination of tiles that sums to your die roll, it's game over.