Each level presents you with an incomplete quilt, essentially a jig-saw puzzle with sections missing. A selection of patches sits at the bottom of the screen, and you finish the puzzle merely by dragging them one by one into the correct positions. However, the rules are the opposite of those for a regular jig-saw. Patches come in a wide variety of different shapes, and a piece will never match its neighbor in color or pattern. Therefore you must intuit, from the patchwork already in place, what the overall design of the puzzle is and how the new pieces must fit into it.