When puzzles were first invented, they were made out of wood, and carpenters used jigsaws to cut the pieces (which explains how they got their name). Perhaps that’s why it feels so good when you put a ...
For puzzlers seeking a challenge they can enjoy again and again, the wooden puzzles from Nautilus are the perfect fit.
After nearly two full days of note taking and digesting advanced research topics, I opted for a slight break for my brain. In a symposium entitled "Design of Mechanical Puzzles," various speakers ...