- Yunzi stones
- How to care for your Yunzi stones
- Shell & Slate
- How to care for your Shell and Slate
- Double convex stone size chart
- Single convex stone size chart
1926. Go Seigen (Wu Qingyuan), father of modern Go in the back row, second from the right. Smart kid!
Also known as Weiqi in Chinese and Baduk in Korean. It is the second most played board game in the world behind Xiangqi (Chinese Chess), and the oldest board game played in its original form. This subtle and complex game of strategy originated in China before 1100 BC and later popularized by the Japanese. Unbeatable by computers, full of philosophy and Zen, Go may just be the ultimate board game. To the Go enthusiast, their passion for the game often extends to the equipment they own. From the simple, to the extraordinary, there are all kinds of Go equipment to fit your tastes and needs. So let's begin with a little introduction!
Top professional Go player Feng Yun at 5 dan
to Play Go
Well first, if you don't already know how to play, this is where you should start. There are plenty of free resources available to get started in the game of Go. Here are the ones we recommend for beginners:
The Way to Go - Karl Bakers' wonderful introduction to the game that's makes Go easy to understand. You will need the free Adobe Acrobat to view it on your computer. A print copy is also included with all our Go boards and sets.
The Interactive Way to Go - After reading The Way to Go, go online for this excellent interactive tutorial of all that you just learned
Improve Fast In Go - Already got the basics down? Go author Milton N. Bradley has a great site that helps you improve fast. Get a entire Go book's worth of intermediate knowledge completely free.
Publicity still from the film "The Go Masters" (1984)
Okay, back to go equipment. Also known as goban in Japanese, there are two traditional versions of go boards, table boards and floor boards. Table boards are to be played on tables, whereas floor boards have legs on the bottom and the board itself is the playing table.
Very thick table boards made of a single piece of wood have an unfinished pyramid carved into the bottom. There is some mystery behind this but the real reason for it's existence is because such a thick piece of wood never fully dries, so it is necessary to allow the board to 'breathe' through this opening. Otherwise, moisture trapped inside by the finish will warp the board over time.
What is this mysterious pyramid?
Go boards can come in many sizes. Japanese standard size is approximately 18-1/4''L x 17-1/4''W (46cm x 43cm). Chinese standard size is slightly larger and more suitable when playing with larger stones, approximately 18-1/2" L x 17-3/8" W (47cm x 44cm). The standard game play grid has 19x19 lines, although there are also boards with 13x13 and 9x9 for faster games and teaching beginners.
Two of the most popular types of boards are Kaya (Torreya Nucifera) and Shin Kaya (made of various varieties of spruce). The most valued type of wood for go playing is Old Kaya taken from Torreya trees that are several hundred years old. The wood is more dense and gives off an especially fragrant scent, however logging of old growth Kaya trees are illegal in many countries because of their scarcity. Much of it now comes from Burma.
(Left: Kaya; Right: Shin-Kaya) Ahh, this is the difference between Kaya and Shin Kaya!
Kaya trees ready to be cut, stored, and dried for go boards
Bamboo boards are also becoming an excellent alternative wood for go boards. They have a natural beauty and, with a tensile strength stronger than steel, their durability is unmatched. Bamboo is also far more durable and heavy than any other wood boards. It will take a beating and still maintain its original beauty for years to come.
I like bamboo boards
Go playing stones can be made from many types of material and come in varying sizes. The most common stone shape is double convex. In China however, players prefer to play with single convex stones because of the louder 'snap' the flat side makes when played on the board. They are also handy for flipping over when reviewing games and playing out variations. A standard set of Go stones has 181 black stones and 180 white. Black has an extra stone because it plays the first move. The total of 361 stones is enough to cover every intersection on the board. Of course you can still play a complete game with fewer stones so don't worry if you end up missing a few.
Yunzi is the national standard for professional tournaments in China. Yunzi has a long history dating back to the Tang Dynasty (618 A.D. – 907 A.D.) . The stone has a property which absorbs moisture from one's fingertips without picking up dirt, and a resonant quality that gives it a pleasing sound as it lands on the board. Yunzi has a nice heft to it and is heavier than shell and slate stones of equal size. The white stones have an opaque milky eggshell luster. The traditional type of Yunzi, known as 'Old Yunzi', has a stronger hint of yellow in its white. Black Yunzi has a similar luster but when held up to the light it produces a bluish green halo along the rim.
Really old Yunzi from the Ming Dynasty
The actual composition of Yunzi is a tightly guarded secret known only to a select few in Yunnan Province, China. According to legend, the secret for making Yunzi stones was first revealed during the Tang Dynasty , when Taoist master Lu Dongbin, one of the "Eight Immortals" of Chinese myth, was traveling through the village of Yongchang in Baoshan County. He came upon a poor peasant who had devoted his life to taking care of his aged mother. Lu Dongbin taught the young man to make Yunzi stones out of agate and amber, materials which were plentiful in Yongchang. The young man soon became rich and "Yongzi" stones, as they were then called, became famous all over China.
After flourishing for hundreds of years and being the favorite of emporers, scholars, and monks, Yunzi stones production in Yongchang came to a halt when China was plagued by civil war in the early 20th Century.
The secret to making Yunzi stones might have been lost forever if it weren't for Zhou Enlai, who took a trip to Baoshan County in the 1960's and charged the Yunnan Sports Commission with figuring out the secret formula for Yunzi stones. Old stones were available, as were old quarries for raw materials. But it wasn't until many years and hundreds of scientific experiments before a stone was produced that China's top Go players agreed was equal or superior to the old "Yongzi" stones.
Yunzi stones can only, by Chinese law, be produced by the state run Yunzi company, which operates out of a factory that was once the barracks for the American Flying Tigers unit during World War II. The formula is still secret, although it's likely that the main ingredients are ground Yunnan mountain stones and agate.
The Flying Tiger barracks, now home of the Yunnan Weiqi Factory
How to Care for your Yunzi Stones
The black stones arrive with a little white powder on them. This is normal with new stones. Take the following steps to bring out the full luster:
1. Rinse the stones clean under water and lay them out on a towel to dry.
2. Place the stones in a plastic bag with a few drops of colorless oil and mix them around until the stones are all coated. Sewing machine oil is suitable, avoid cooking oils.
3. Wipe the stones clean of excessive oil. Remember, the stones absorb moisture and oil from your fingers so the more you play, the nicer they will look!
Shell & Slate
Produced in Hyuga city, Japan, shell & slate are some of the most coveted type of stones out there in the Go world. While the game of go was introduced to Japan during the Taiho era (701 A.D. – 703 A.D., it wasn't until the 17th century that the Japanese began to make stones out of clam shells. Initially made in Hitachi and Kuwana, it was during the middle of the Meiji era (1868 – 1912) that the Japanese discovered using Hyuga clam shells for stones. The clams from Okuragahama beach in Hyuga had much thicker shells and finer grains, thus cementing the area's reputation as the home for shell and slate stones.
Do Not Eat
Hyuga city is now the only place in Japan where shell & slate stones are made. However, clam shells in Hyuga are nearly extinct, and while stones produced in Hyuga are still crafted with perfected traditional techniques, almost all of the shells are imported and harvested from off the coast of Baja California, Mexico. One can still find stones made from Hyuga shells, but will have to expect to pay a premium of several times the price of normal shell & slate.
The stones come in different grades rated based on their coloration and line patterns. From lowest to highest the stones are rated as: Standard (Jitsuyo), Moon (Tsuki) and Snow (Yuki). Snow grade shell stones are the whitest with the fine straight lines running across the top of the stone. Tuski stone lines are broader and curve across. Jitsuyo stones have more irregular and coarser lines with slight discoloration.
How to care for your shell & slate stones
You can clean your shell stones by simply wiping them off with a 100% cotton cloth. If the stones need more serious cleaning, mix them with a fresh egg and wash the stones in the mixture. Clean and rinse them in tepid water for a few minutes and let them dry overnight. Soap is also safe to use for cleaning. Do not use oil on shell stones!
Go Stones are made from a variety materials, but marble stones are one of the few that can truly be said are made from real stones. It is cool to the touch and produces a nice sound of stone on wood when played. The stones have a very natural luster to their color. The white stones are made from a type of marble known as Hanbaiyu, and the black is Heibaiyu. These types of marble are used in ancient Chinese sculptures, and in palace and temple architecture. The marble is carved down and polished individually so slight variances exist between each stone.
Hanbaiyu, white marble
The most common material used for stones. Glass stones are inexpensive yet have a very nice heft and feel to them. They also create a nice snapping sound when played on the board.
Another common and inexpensive material used for stones. Ceramic stones have a matte finish that has a more natural aesthetic appeal in contrast to the more glossy glass stones. These stones are very durable and don't chip easily.
Now for sizes. Here are some charts for making heads or tails out of Go stone sizing standards.
Double Convex Sizes
Single Convex Sizes
Chinese weiqi academy standard size is 21.5mm, 8.8, Old Yunzi. If you're looking for single convex, make sure you have the right size to fit your board!
||6 (Extra Large)
Go bowls are traditionally made out of wood. However you can also find bowls made from stone, straw, plastic and other materials as well. Bowl lids, in addition to keep your stones secure inside, are also used to place your opponent's captured stones in during game play. Wood bowls generally come in two different shapes, Kitani and Go Seigen. These names are coined by popular Go lecturer, Janice Kim, 3 dan. The Go Seigen bowl refers to the shape of traditional Chinese style bowls and the Kitani refers to the shape of Japanese style bowls.
Left: Go Seigen bowl; Right: Kitani bowl
|PromoteGo.org - Find Go players and clubs in your community.|
|The American Go Association - Learn about clubs, events, and Go programs in the USA. Excellent Go newsletters.|
|Go Game Guru - A popular and excellent blog about Go. Get news on the Go scene and improve your game with weekly Go problems.|
|Tiger's Mouth - American Go Foundation's site for kids and Teens. They can help you learn to play Go, find a club in your area, compete in tournaments, or start a club at your school with free equipment.|
|Life in 19 x 19 - Forums and discussions about Go|
GoProblems.com - Comprehensive, fully-featured, and extendable Go problem resource. Study here and you will get stronger!
|Sensei's Library - Great Wiki style resource on everything Go related|
|ChiyoDad Learns Go - A fun and wonderful blog on one player's journey into the game of Go|