Shut the Box

Each turn you roll two dice (the two numbers in the squares at the top). You have to remove one or two remaining numbers so that the sum of the dice roll equals the chosen number(s). Choose a number (or two) by pressing on a remaining number. The number(s) will be selected. Click on the "OK" button to continue. The goal of the game is to remove all of your numbers (shutting the box). The number at the top left represents your score (sum of all remaining numbers). 0 is the best score.
The game is over if you shut the box or if you can't do anything anymore.

Example: the dice show 2 and 6. The sum is 8. You can now shut the 8, 7+1, 6+2 or 5+3.