We love puzzles around here. I'm pretty good at them, if I do say so myself. I have fond memories of time spent in younger years completing large jigsaw puzzles, especially with my mom's parents.
I remember when Jordan first became interested in puzzles which require the pieces to nestle together. He can do many on his own now, though he still uses more of a trial and error/memory effort than filling in the border and working through like-pieces to finish the middle like I do. Sometimes he even attempts to jam pieces in where they don't belong, only to find it skews the picture, then try again.
My favorite thing about puzzles is that they are predictable. I can pull out a box, dump out the pieces, and glance at the full picture every once in awhile when I'm stuck. I confidently expect an end result just like the box promises me.