Welcome to the gnome quarry! Every level is a bright picture made of sparkling crystals, and your cheerful gnome crew is ready to mine it, crystal by crystal.
Tap a crate to slide it out along its arrow. Its gnomes march through the camp passage and chip away the crystals of their colour, from the edge of the picture inward. Gnomes with nothing to mine yet wait in the tent, and the tent has only so many spots. Open the crates in the right order, keep the crew busy, and clear the whole picture.
Tap a crate whose arrow has a clear way out. All its gnomes go through the passage: the number on the passage shows how many can pass right now. Gnomes take crystals of their own colour that touch the edge of the picture; the rest wait in the tent until a crystal of their colour opens up. Clear all crystals to win. If no crate fits through the passage any more, you are out of spots: undo, add spots, or try another order.