We're about half way to completion and there are two challenges; 1) The pieces are not as distinct as one might expect. On several occasions, we've found two or more pieces that will fit in the same space. If you want an easy puzzle, this might not be for you. I like the challenge. 2) No where on any of the packaging does it mention Harriet Tubman. I Know who she was, but just a little blurb on the back would be cool.