This Metal Puzzle Looks Impossible

This classic metal puzzle looks impossible at first: two nails are tightly interlocked through closed circular loops, making it impossible to separate them by force. The secret is not pulling harder, but finding the correct movement sequence. First, one nail is moved toward the other until the loops overlap. Then, the right nail is rotated 180 degrees around the left nail until both nail heads become parallel but face opposite directions. Finally, in this exact position, the nails are pulled apart smoothly. This clever puzzle shows how simple metal pieces can create a challenging brain teaser based on rotation, alignment, and precise movement.