These twelve interlocking three-dimensional wooden puzzles were made in Japan, likely by the Yamanaka Kumiki Works. Each is individually wrapped in plastic and includes a sheet showing how to assemble ...

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 ...

In the 2025 competition, Tortoise Protocol was runner-up for the Puzzlers’ Award, which is determined by attendees who vote ...

The Local newsletter is your free, daily guide to life in Colorado. For locals, by locals. Kagen Sound’s 600-square-foot shack sits in the backyard of his quiet townhome in City Park West. A powerful ...

Forbes contributors publish independent expert analyses and insights. I am an investigative attorney and physical security specialist. Think of a wooden box that is as large as a foot square, with ...