Alex told me that she and her husband had bought an old house that needed a lot of renovation, and that putting the wooden floor down was a lot like a hard jigsaw puzzle.
Well, I added two and two and ended up with approximately four, but that’s a problem for my mathematically oriented daughter.
I found this photograph of a wooden floor with tools, and picked it out for today’s jigsaw puzzle.
It’s a tough one, but I was able to nail it down.

Beginner   Easy   Medium   Hard   Tough