How is 7 and a half in Go calculated?

A: Because in modern Go, black moves first, which is bad for white, so for the sake of fairness, black needs to be close to the eye (i.e. black must have more meshes than white to win). The rules are different in each country, China is 7 and a half meshes, South Korea is 6 and a half, Japan is 5 and a half, and Ying's rule is 8 points (equivalent to 8 subs).

In ancient times, there was no purpose, and white had to have 180 discs to win.

3 and 4 points and 3 three sons, how is it calculated? When a player counts the number in a game, removing one of the opponent's pieces counts as 2 pieces, so that's how it is said. In addition, because according to Chinese rules, a full single official must be placed before the final game, while Japanese rules are not counted as a single official, so there will be a difference.

All in all, in Chinese rules, black wins with 185 discs at the end game, and white wins with 177 discs.

3 and 3 4 discs mean that Black has an advantage in playing first, so Black has an advantage in playing first (the specific handicap is also the result of continuous adjustment according to the statistics of black and white in the short decades of modern Go, and 3 and 3 4 discs are the rules in the Chinese numeracy method. To say that 3 and 3 4 are equal to 7 and a half is only approximately equal, not the same in the strict sense. After all, 7 and a half is the saying of Japanese Go, and because of the influence of Japanese Go on modern Go, the world is still more accustomed to using the term "目"目").

So when the game ends, Black needs to have 4 more discs than White to win.

There are other questions to be answered, it's really complicated.

My amateur 5d, 7 and a half meshes refers to the sticker (Chinese rules) given to white when black and white play first, and encourage you to play tom.

3 and 3/4 sub is a false fraction = 15/4 = 3, 75 sub = mesh.

3 and 3 4 sons are seven and a half eyes. Because Black has the advantage of playing first, after years of experience with countless masters, it is determined that Black will have to post the target amount.

In a long-term actual game, it is undeniable that black has a high probability of winning, so the understanding of the players who require Black to be close to the goal is gradually unified. Through the analysis of a large number of games played by ancient and modern masters, it is believed that black can be cheaper to divide the first move.

Four or five eyes are about one, so it is more reasonable to paste four and a half meshes. So in 1949 (Showa 24), the rules of the Japanese Chess Academy stipulated: Black sticks 4 and a half meshes.

From the third battle of the throne in 1955, the black chess sticker was changed from 4 and a half to 5 and a half. Since then, all title fights, including celebrity fights, have been fixed with a black sticker 5-and-a-half system.

However, in recent years, with the deepening of the layout research, this rule is still beneficial to the pioneers of black-enforcement. By the end of 2001, in the 10,000-game official open chess tournament held by the Nippon Chess Academy in the past five years, the black chess winning rate (in the case of black sticking to 5 and a half meshes) had reached a winning rate. Although the difference in the winning rate between black and white is less than 4, in the fiercely competitive world of Go, such a difference is enough to be fatal.

South Korea, which has a clear advantage in international chess tournaments, is the first to switch to the six-and-a-half format in most chess tournaments. Since the spring of 2002, China has also changed all of them to 3 and 3 4 (equivalent to 7 and a half meshes). The Japan Chess Academy has also reformed the 50-year-old black chess system of sticking five and a half meshes, bringing some games closer to China and South Korea and implementing six and a half meshes.

In 2003, Japanese Go began to use the 6-and-a-half rules of black chess.

There are two types of Go point algorithms: the number method and the counting method.

1. Counting (Comparison) Method: Expressing it in simple words, it is to calculate and compare the number of regional meshes enclosed by the two sides in the final game, and judge the outcome by the number of meshes. In China, the rules of Go are based on the number method.

2. The number method is calculated and judged according to the number of positions belonging to the chess pieces on the chessboard after the end of the chess game.

The Go pieces are divided into two colors, black and white, in a flat shape, and the number of pieces is the same as the intersection of the board, with 181 black pieces and 180 white pieces, for a total of 361 pieces.

Answer: Calculate the intersection points of those squares on the board surrounded by the chess pieces, including the intersection of two lines on the edge and the intersection points in the chessboard. At the same time, in some games, Black has to return 6 and a half meshes for White and 7 and a half meshes for South Korea.

There are 19 vertical and horizontal lines on the Go board to divide the board into 361 intersection points, the chess pieces walk on the intersection points, the two sides alternately move chess, and cannot move after falling, and the one with more enclosures wins. Because Black has the advantage of occupying the land first, the rules artificially stipulate that Black should give White a post at the end of the game.

The purpose of Go is the field, who encloses the big who wins, when the territory of the two sides is completely determined, and the boundary is finally consolidated, that is, after occupying a single official, the game is over, taking the thirteen-way small chessboard as an example, black chess: black space 40 months (that is, the intersection point surrounded by black chess) + sunspot 43 = 83, the intersection point of the chessboard is 13x13 two 169, half is 84+, because the sunspot 83 is worse than half of the son 1 to the black negative.

Each side of the game holds a one-color chess piece, black first and white later, alternately playing pieces, and only one piece can be played at a time. The pieces are placed on the intersection of the board, and the pieces are placed on the stars (except for the handicap). Once the piece is set, it must not move to any other position.

It is the right of both parties to take turns, but either party is allowed to give up the right to play and use the hypothesis.

When playing chess, the pieces are played at the intersection of the board, and the pieces cannot move their positions after they are on the board. Black goes first, the user goes next, I go next, and until the end, see which side is the winner of the intersection of the intersections.

Finally, it should be noted that the method of calculating the victory and defeat is different, which is manifested in a specific game of chess, for example, winning 3 4 discs is the same as winning 1 and a half eyes, that is, winning n discs = winning 2n goals. This is because the number method calculates the winner and loser, which is the deviation of the calculation from the standard; In the number method, the difference between the two sides is calculated.

I hope my answer will help you.

Mesh refers to the number of empty intersections that a piece has formed on the board. The Japanese rules of Go are based on the number of meshes as the criterion for judging victory and defeat.

Calculation method: Fence out a cross point on the chessboard to count 1 mesh, mention a piece to count 2 mesh, and lift a piece and glue it is also counted as 1 mesh.

In Go, the winner is determined by the number of intersection points enclosed, and the intersection point is the 19 19 361 points obtained by the intersection of 19 horizontal lines and 19 vertical lines on the chessboard. But generally speaking, Black has to post a goal to White first to balance the advantage of the first move, that is, to add a goal to Black's at the end.

In the diagram on the left, the black disc on the left has no real eye, and the black disc on the right has a true eye, both of which are dead pieces;

In the diagram on the right, there are 17 meshes in the upper left corner, 12 meshes in the lower left, and 16 meshes in the lower right, for a total of 45 meshes. Black has 38 discs on the top and 8 discs on the bottom, for a total of 46 discs.

When it comes to quickly distinguishing between real and fake eyes, first know how to judge them correctly, and then practice more. When it is cooked, it can naturally be quickly distinguished.

Black 46 White 45

Left 0 and right 1 seem to be, but I can't see it clearly.

Just count the points that each party has no children in its own range.

It will be clear when the imagination of the discerning eye is tightened.

<> "Half eye" in Go is a statement that is a number of pieces obtained by the rules of Go.

Calculation method: three chess pieces, divided between two people A and B. Two for A and one for B.

According to the method of counting, it is believed that A takes half more, that is, he wins half of it; In the numerical method, it is believed that A has 1 more than B, that is, it is better than 1 eye. In fact, the child and the feast are concepts of equal value.

That is, according to the number method, one son is about equal to two mesh, but the rules of victory and defeat stipulate that three and three-quarters of the sub wins, and the conversion into a goal is to paste seven and a half meshes. It's not calculated, it's posted according to the rules of Go.

There are two common possibilities for its appearance:

1. Caused by sticking.

2. Caused by sub-effect.

The number method calculates the victory and defeat, which is the deviation between the calculation and the standard; In the number method, the difference between the two sides is calculated.

Go, a strategic two-player chess game, was called "Yi" in ancient China and "go" in the West. It is popular in East Asian countries (China, Japan, South Korea, and North Korea), and is one of the four arts of qin, chess, calligraphy and painting. Go originated in China and is said to be Emperor Yao.

It was recorded during the Spring and Autumn War. During the Sui and Tang dynasties, it was introduced to Japan through Korea and spread to Europe and the United States. Go contains Chinese culture.

It is Chinese culture.

with the embodiment of civilization.

Professional Go actual combat, chess game appreciation, more eyes and less (explanation).

One eye is equal to two sons.

Goal: On the chessboard, the blank intersection point surrounded by one of the chess pieces is called "目", which is a term in Go.

There are three rules of Go. Chinese mainland adopts the number rule, Taiwan adopts the Ying point rule, and Japan and South Korea use the number rule. Because Black has a certain advantage in going first, all rules use the sticker system.

The rules are the same in Japan and South Korea, using the number method, and the black finale is 6 and a half meshes. Count the number of eyes of one side and record it, then count the number of eyes of the other side and record it, then black subtracts 6 and a half meshes, and finally compares with white, and the more wins.

It is worth mentioning the saying "one son, two eyes". Although the method of calculating the winner of Go is different, it is manifested in a specific game, sticking m = sticking 2m, and winning n = winning 2n. Here's why:

The number method is to calculate the deviation between either side of black and white and the attribution number (361 2=; The flounder method is the difference between the number of meshes obtained by the black and white sides.

Chinese Go Rules:

1. The rules of sticking 3 and 3 4 sons: the first step is to remove the dead son. The second step is to count only the number of points around one side and record them (generally the points are in units of ten points).

In the third step, if the number is black, subtract 3 and 3 4 discs, and if the count is white, add 3 and 3 4 discs. In the fourth step, the result is compared with 180 and 1 2 (half of the 361 points on the board), and if it is exceeded, it will be considered a victory, otherwise it will be a loss.

The number of black eyes is more than the number of subs, while the number of white meshes only needs to exceed the subs to win. In layman's terms, 177 pieces of white pieces win, and black pieces win.

2. Let the first and let the son: let the first do not stick the eye, let the child paste back half of the number of let children (as if the transferee received the order in advance).