This puzzle is a variation of the sliding-block puzzle genre but adds an extra layer of complexity with hidden compartments. Its roots go back to traditional Japanese puzzle boxes (Himitsu-Bako), where sliding panels reveal hidden chambers. It challenges the user to find the internal mechanism that unlocks the puzzle. The designer’s inspiration for Giant Hidden Passage likely comes from classic puzzle box designs used in Japan for centuries. These puzzles were used to store valuables, adding an element of secrecy to their craftsmanship.