The Sword of Nine Seals from Professor Puzzle provides the ultimate test in problem-solving and mental speed. Flex your cognitive muscles as you try to remove the sword loop from all nine rings. Inspired by the legend of the Chinese general Hung Ming, he made an elaborate looped puzzle for his beloved wife promising that by the time she managed to remove the last loop he would return from war. Part of the Grand Masters range. Difficulty rating: Emperor. Distributed in New Zealand by Holdson.