Hoffman's Cross Keys Puzzle

thingiverse

I've always been fascinated by puzzles, so I dove headfirst into creating my first one. I began by scouring old puzzle books for inspiration, and Hoffman's 1893 Puzzles Old and New book stood out as a treasure trove of ideas. The Cross Keys puzzle caught my eye - it's a relatively simple design that still requires some serious problem-solving skills to assemble correctly.