Four Pyramid Puzzles

thingiverse

Here are four puzzles that can be assembled into a key that reveals the solution. The key itself takes the shape of a four-sided pyramid made from interconnected cubes. The base of this pyramid consists of 25 sub-cubes arranged in a 5x5 pattern, while the second level is comprised of 9 sub-cubes organized in a 3x3 layout. Atop this structure sits a single cube, serving as the apex of the pyramid. Each puzzle comprises a specific number of pieces - one has four pieces, another consists of five pieces, a third contains six pieces, and the final puzzle includes seven distinct pieces.