Pieces are missing! I scrolled around everywhere and couldn’t find them. Yes I differentiated between scrolling the canvas versus the pieces versus the completed portion. If this is how the demo works, it’s kind of off putting since it punishes you for just trying it out. Even if I was interested I would not sign up for a site that does this. At least there should be a warning up front before you waste time on the demo: “You will not be able to fully complete the demo puzzles.”