We've instituted "Robbie puzzle time" in the 20 minutes between when Annie goes to bed and Robbie does. When he's finished, he says "We put it away, and we try again tomorrow!"
This is the 3rd time he's put this puzzle together since we got it and a few others about a week ago.
So I videotaped it for the Grandma and Godfather audience.
Talks his way through it.