Gobang is a pure strategy board game played by two people. Chess tools are common with Go, which is one of the traditional black and white chess games originated in ancient China. Developed in Japan and popular in Europe and America. Simple and easy to use, suitable for all ages, interesting and charming; It can not only enhance thinking ability, improve intelligence, but also be philosophical, which is conducive to self-cultivation. It has applications in various game platforms.
chessboard
The chessboard for Gobang is 15× 15, and the surface of the chessboard is composed of 15 parallel lines intersecting vertically at the same distance, and the intersection point is ***225. The center of the disk is Tianyuan.
Chess sequence
Black first (start), then white, and settle down in order from Tianyuan (h8). The first black chess piece should be placed on Tianyuan, the first white chess piece can only be placed on eight points near Tianyuan, the second black chess piece can only be placed on five times five points near Tianyuan, and the second white chess piece can be placed at any position on the chessboard.
Judgement result
The first person to form five pieces of the same color in a row in the horizontal, vertical and diagonal directions of the chessboard wins.
The so-called black hand ban was judged negative. The so-called black hand ban refers to the formation of two or more three, four and long hand bans when the black hand falls. At this point, the white side should immediately point out to the black side that victory is a matter of course.
White is not forbidden. The black hand ban includes "double three" (including "four, three, three"), "four, four" (including "four, four, three") and "crossing the line". Black can only win by "four or three".
The five black sides formed a five-company when they lost the key five, and at the same time formed a forbidden hand. At this time, because the black side has become five companies, the forbidden hand is invalid and the black side wins.
When the black hand ban is formed, the white side should immediately point out that the black side is negative. If the white side is not found or not specified after discovery, it cannot be judged that the black side is negative.
It is different for the black side to walk out of the dragon company's forbidden hand. As long as it is before the final, whenever the white side finds the dragon company's forbidden hand, point it out and declare victory, and judge that the white side wins.
Changlian
On any line of the chessboard, more than five pieces of the same color are connected at intervals.
Huosan
One more step on our side will form three of the four living.
Hoth
Two points can be four fifths.
Chongsi
Only one point can be four out of five.
Forbidden hand
If you play chess, you will lose the game.
Three-three forbidden hands: black chess falls at the same time to form two or more live three.
Four-four forbidden hands: black chess falls to form two or more rushing fours or living fours at the same time.
Dragon company forbidden hand: a child of black chess forms one or more dragon companies.
According to the number of participants, the competition can be arranged in groups or round robin; There are a large number of participants in the preliminary round, so it is suggested that they can be grouped. A group of 8- 10 people, the top three qualify; It is also more scientific to draw lots for the top three players in each group, make a single elimination match, or arrange the competition with the Swiss points system of real competition.
Please refer to Baidu experience for details.