Gift Idea for Someone with Late Stage Alzheimers. Tractor 12 Piece Puzzle. Alzheimers can be such a cruel disease. However our loved ones can still feel loved by your thoughtful choice of this gift idea. This 12 piece puzzle is ideal for someone with moderate alzheimers or an extreme low vision problem. The finished size of the puzzle is 9 x 12. The puzzle pieces measure 5 1/2" wide by 3 3/4" high. Recommended by the Alzheimer's Disease International association.