BOULDER, Colo. — Walking into the factory of Liberty Puzzles in Boulder is like a buffet for the senses. Smells of freshly cut wood waft among the dozens of people operating machines, cleaning, ...
You know about puzzle books---books of puzzles, or books that are themselves puzzles. But then there's Codex Silenda---a gorgeous, wooden book of brainteasers that is itself a multi-part mystery. As ...