My Own Pro Tip

When multiple planks are stacked, you should first remove the screws securing the topmost plank. If you remove the screws of the lower planks first, they won't fall due to being blocked by the upper planks, and you'll end up short on empty holes (temporary waiting space). Always check the order of the colored boxes appearing at the top. Screws of colors that can't be put into the box immediately will enter the temporary holes and take up space. You need to prioritize removing screws that match the current box color, fill the boxes, and clear them to secure waiting space. Even if only one screw remains, planks have a tendency to rotate around the other axis or droop downwards. If a plank tilts after removing a screw, the screw holes behind it, which were blocked, will be exposed, allowing you to proceed. The game ends immediately if the empty holes are full. You must always leave at least 1-2 empty slots to clear screws through chain reactions.