This is the reproduced work . The original work was made in July1984. "When you cover the lid, you can open the box. But when you take off thelid, you can close the box." This is a paradox. But I wanted to realize thisparadox. Even if you are confident that you can solve all puzzles byyourself, you can't open this box without a stroke of genius. But ifsomething flashes in your mind, you can open it easily. Even little childrencan open it. In this box, all of your experiences get in the way and aren'tuseful. Try to find the solution.