Yunzi

Yunzi

　　Go is an ancient art in China, and the materials used to make the game pieces vary widely—wood, stone, gold, jade, and more—but none are as renowned as “Yongzi,” also known as “Yunzi,” produced in Yongchang, Yunnan.

　　The mineral ingredients used to fire Yunzi include dozens of components. Ancient texts record that its composition contains agate and amber, and its formula was once lost, but was later restored through the recollection and experimentation of veteran artisans. Various raw materials are placed in a crucible and fired. Once the "elixir" in the furnace is ready, it is taken out and dropped onto a steel plate. After cooling, the piece blanks are formed. The quality of this “Yunzi” depends on the formulation, the firing process, and the skill of placing the drops. Working in such high temperatures, even in winter one sweats profusely—it’s truly not easy to produce.

　　Yunzi, or Yunnan Go stones, are one of the “Three Treasures of Yunnan.” Originally produced in Yongchang Prefecture, Yunnan (now Baoshan), historically called “Yunbian” or “Yunyaozi,” they are now made in Kunming and are famous both domestically and internationally as premium game pieces.

　　Yunzi white stones are as white as the sky, while the black stones are deep black with a hint of blue. They are hard in texture, with colors that are aesthetically soft yet not glaring, and their classic, dignified shape is neither gaudy nor frivolous. When held up to the light, the white stones have a faint yellow tint, and the black stones reveal a greenish glow around the edges. Placed flat on the board, they show a dignified contrast of black and white. Held in the hand, they feel warm in winter and cool in summer, making them highly cherished by Go enthusiasts both at home and abroad.

　　According to historical records, Yongzi originated in the Tang and Song dynasties, flourished in the Ming and Qing dynasties, and was beloved by scholars and noblemen throughout the ages. It was once a tribute offered to the imperial court and enjoyed the reputation of having “the finest Go pieces under heaven.” Later, its production moved to Kunming, where the quality became even more refined. Nowadays, the product is exported to countries such as Japan, South Korea, and Singapore.