Why is the board of Go bigger than Gobang?

? ? The chess set of ancient gobang is exactly the same as Go. With the development of modern times, the chessboard of Gobang is bigger than that of Gobang.

Weiqi originated from Yao and Shun playing chess. During the Han and Wei Dynasties, it was a seventeen-way (17× 17) chessboard. By the Southern and Northern Dynasties, it had evolved into a nineteen-way (19× 19) chessboard. It was not until 193 1 that the modern gobang board appeared. The chessboard consists of parallel lines with equal distance in horizontal and vertical directions. On the chessboard, horizontal lines and vertical lines intersect to form 225 intersections as the landing points in the game. The distance between two adjacent intersections is slightly larger than the diameter of the chess piece, and the distance between the longitudinal lines of the two intersections is about? 2.5 cm, the horizontal line is about 2.4 cm.

According to the different competition forms, the current Go chessboard is divided into China chessboard, Japanese chessboard and Korean chessboard. China chessboard is 49cm*46cm, which is called the big chessboard (the chessboard is 2.5cm in length and 2.3cm in width, and the big chessboard is suitable for Go with oversized pieces and protruding one side); Japanese chessboards are 46cm*43cm and 47cm*44cm; The Korean chessboard is 45.5cm*42.5cm, so it is called a small chessboard (the chessboard is 2.3cm long and 2.2cm wide, which is suitable for medium single-sided convex chess pieces and C-shaped double-sided convex chess). But the chessboard specifications used in regular Go matches are all the same. Go chessboards are all 19 games. Weiqi board consists of 19 horizontal lines and 19 vertical lines, and * * * has 36 1 intersections. When playing chess in Go, the pieces fall on this intersection.

? On the whole, Weiqi pays attention to qi and emphasizes the overall situation. The purpose of Weiqi is to make its territory as big as possible by holding hands. Gobang pays attention to continuity and can play in both directions. Gobang is a combination of Gobang.