In this game you need to open all the seashells to get pearls inside. There are 14 seashells arranged in a triangle with 5 seashells on each side, the space at the top corner of the triangle is empty. A seashell can move to the empty space if it is next to it. It can also jump over another seashell to land on the empty space, in this case the seashell that is jumped over will open, or close if it is already open.
Open all the seashells with as few moves as possible.