When Yunzi stones went into production in Yunnan Province, China in the 1970's after an absence of over 50 years, the original Yunzi recipe was painstakingly re-created from old samples, secret recipes, and legend. Now, in the modern process of making Yunzi stones it's possible to make white stones that are pure white (see our other listings for these stones), whereas the old style of Yunzi stones had a slightly yellowish hue. This set of stones uses the old, unrefined formula, reproduced for purists. In fact, the Chinese Go Academy still considers these stones to be the standard.

These stones are ''single convex.'' One side is flat with a slight rounding on the edge, the other is fully rounded. Whether to play with single convex or double convex is a matter of personal taste. In general, Chinese Go players prefer these single convex stones for their feel and louder solid ''snap'' when played on the board.

• These stones are newly made
• 180 white and 181 Black single convex Yunzi Go stones
• These stones are medium size single convex: 5.7mm tall and 21.5-22mm wide (about 3/16'' x 7/8'')
• These stones will fit Chinese and Japanese Sized Boards.