How many formulas does Go have?

The formulas of Go are mainly divided into: star formula, small eye formula, March 3 formula and high eye formula. "Star formula": Because the hanging angle of the star position can be on both sides and the hanging angle on both sides can be the same shape, the hanging method and attacking method after the star position occupies the angle are more complicated, and there are many formulas, such as small flying formula, large flying formula, single receiving formula, small flying formula, pressing length formula, pressing block formula and so on. To put it simply, the star formula is a relatively fixed step in the layout of Go. When one side occupies the star position in the corner of the board first, it is considered that both sides will not suffer. "Small eye formula": It seems safe to play with a small purpose, but it is not. It has too many changes and is quite complicated. Judging from its hanging, there are small flying hanging, large flying hanging, one hanging and two high hanging. There are also different defensive angles, small fly, big fly, one room and two rooms. As for all kinds of attacks, the list is endless. The eyelet is a certain position in the corner of the chessboard, and its coordinates on the chessboard can be (3,4) or (4,3). There are two small eyes on each corner, so there are eight small eyes on the Go board. The position of the small target occupies the basic line of the layout, so it is at the intersection of the third line and the fourth line, which means that the small target takes into account both the field and the peripheral forces. The third line is easy to stand on, and the fourth line is beneficial to the current forces. Among the five points on the corner, the small eye plays a balancing role.