Chinese Knotting Puzzle

Chinese knotting (Chinese: 中國結; pinyin: Zhōngguó jié) is a decorative handicraft art that began as a form of Chinese folk art in the Tang and Song Dynasty (960-1279 AD) in China. It was later popularized in the Ming). The art is also referred to as Chinese traditional decorative knots.[1] In other cultures, it is known as "Decorative knots".

Chinese knots are usually lanyard type arrangements where 2 cords enter from the top of the knot and 2 cords leave from the bottom. The knots are usually double-layered and symmetrical.