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What is the standard piece diameter of Go?
The diameter of standard Go is 2.25-2.35cm, and the thickness shall not exceed 1 cm.

The chess pieces are divided into black and white. Most of them are oblate (there are also two-sided protruding pieces). The number of pieces should be 180 black and white pieces. The chess pieces are round. In China, one side is flat and the other side is convex, while in Japan, both sides are convex.

Yongzi, produced in Baoshan, China, has been favored by chess players for more than 500 years. Other precious chess pieces are agate, shells and so on.

The size and color of the pieces used in the game must be uniform, and there must be no unusual pieces.

Extended data:

1, Go equipment:

In addition to chess pieces, you need the following tools:

Chessboard: parallel lines 19 with equal distance and vertical crossing, and * * * constitutes 19× 19=36 1 crossing points. There are nine points on the disk, called the star position, and the central star position is also called "Tianyuan". Chessboards can be divided into corners, sides and midriffs. In the initial study, there were 13× 13 and 9×9 chessboards. In addition, some modern unearthed cultural relics are rare chessboards of 15× 15 and 17× 17.

Chess clock: also called timer, it can be used to limit the time of players in formal competitions. Informal competitions generally do not use timers.

Chess Manual: A tool for recording chess games, usually in the form of a notebook.

2. Basic methods

(1) In the game, each side holds a piece of the same color, first black and then white, and then cut alternately, and only one piece can be cut at a time.

(2) Place the chess pieces on the crossing points on the chessboard.

(3) After the chess pieces are moved, they shall not be moved to other positions.

(4) It is the right of both parties to take turns, but either party is allowed to give up the right and use the imaginary party.

Step 3 judge the result

Go has three rules. Chinese mainland adopts the number sub-rule, Taiwan Province Province adopts the counting rule, and Japan and South Korea adopt the number sub-rule. Because the black side has certain advantages first, all the rules adopt the sticky eye system.

Baidu Encyclopedia-Go (a chess game)

Baidu Encyclopedia-China Go Rules