According to tradition, the organizers of Go games usually put white chess boxes beside beginners or elders before the game starts. Here, China, Japan and South Korea are slightly different. China and South Korea will give priority to the starting factor, and the main reference standard is location. For example, if Ke Jie meets Hu, it is up to Ke Jie to catch Hu and guess. Like Japan, title wars such as celebrity wars are fought by title holders. Most of Japan is a title war. Even if the champion holder is in the primary stage and the challenger is in the ninth stage, then the champion holder should be respected and caught by him.
There are two different sets of guessing rules at present. Traditionally, in China, guessing players will grab 1 or two black dots and put them on the chessboard to indicate single black or double black. If he guessed the single and double pieces in the opponent's hand, he would directly hold the black, and if he guessed wrong, he would hold the white. He had no choice. The same is true in most parts of South Korea and Japan. Dream Lily Cup, Chunlan Cup, Bailing Cup and Sanxing Cup all adopt this method.
However, there is also a rule of guessing first, that is, the party who guesses first has the right to choose black or white This set of guessing rules is currently only used in LG Cup and Shi Ying Cup.
Second, the etiquette of guessing first.
When guessing before the game, the starter should let the starter catch Bai Zi and take out 1 (or 2) sunspots, which means that if Bai Zi is odd, it is black, if it is even, it is white (taking 2 is the opposite). Guess before the game, the defending champion, the person with the highest level and the elderly should catch it.