What are the rules of the game of military chess?

Military chess is one of the most popular chess games in China, which supports two-person and four-person games.

When two people play chess, both sides share the upper and lower corners of the board and fight; When four people play, they share the four corners of the chessboard and divide them into two sides at the same time to play against each other.

Next, the chessboard related to the "military flag" is introduced in detail: the chessboard structure of each side is the same, consisting of railway lines, highway lines, camps, stations and base camps; The placement position of chess pieces, 23 railway lines on each side; The thick line on the chessboard is the fast line of the chess pieces, as long as the number of steps taken by the chess pieces in a straight line is not limited (except for engineers, other chess pieces,

Highway line: a thin line on the chessboard, and the chess pieces move slowly. Only one walking camp can be moved at a time. The pieces in the walking camp can not be protected by any other pieces, and there are five base camps on each side. There are two base camps on each side, one of which must be placed with a military flag, and the other can be placed at will, but the pieces in the base camp cannot be moved.