I introduce the shape quiz to the people at the gala dinner table. I asked them to make the shape of a house. All the adults were stumped. They could not make it from the four pieces. It was challenging, so they refused to give up.
The puzzle finally went to a 9 year old girl at the table. I taught her the technique to solve the house and the T puzzle. She was fascinated with the puzzle. She tried to make the other pieces wihtout looking at the solution. It occupied her most of the night.
I told her father that she will be an architect one day. And she will remember who taught her how to manage the shapes.
Here is the fascinating shape quiz.
https://www.youtube.com/watch?v=aFjMHNB7qhg