The puzzle has 10 wooden pieces, each shaped as a single or combination of the letters "a" and "p" (and this is where the puzzle name comes from).
At first there are 9 pieces placed in a wooden frame and there is an extra 1 piece placed in a small space next to the large one.
The object of this packing problem puzzle is to arrange the pieces in a way that all 10 can perfectly fit inside the larger tray area. Not an easy task, but a lot of fun and challenge.
Note: Colors may vary (see pictures).
Handmade by Jean Claude Constantin, puzzles designer, inventor, and artist.