Our 11 yr. old grandson has loved doing puzzles since he was a toddler. Over a period of about 28 hours he and I, his mother, and his friend from gymnastics all worked with him at various times to fill their dining room table with finished puzzles. He tried to fit second 1000 piece puzzle but the frame was too large so they took pictures to record the 20 or so hours of work (8 hours of the 28 he slept) that he coordinated and we supported - puzzling at it’s finest!