The second rule is called "adjacent", and any chess piece can skip a chess piece adjacent to it;
The third rule is called "single crossing". A piece can cross several pieces on the same line as it, but it must be the number of pieces to cross. Calculate the number of jumping blocks through mathematical operation.
The third rule should be paid attention to: ① the landing point can only fall on the adjacent straight space in front; (2) Each chess piece participates in the operation and can only be operated once; ③ There is no limit to the number of empty spaces in the middle of chess pieces;
The fourth rule is called "crossing". Any piece can span several pieces that can calculate the same number at the same time.
Extended data
Opening method
(1) Grasp the left:
This method is mainly to quickly seize three adjacent vacancies on the same line as the diagonal camp in the left corner of our camp, so that as long as there is a vacancy in the diagonal camp, the chess pieces occupying this position can constantly break into the other camp and strive to take the initiative.
(2) the left straight line attack method:
This method is to occupy the three adjacent vacancies on the left side of our camp, and if there is a vacancy in the other corner, we can occupy the vacancy of the other camp in time.
(3) Central attack method:
Mainly use 1, 0, 4, 8, 9 to enter the opponent's camp through the middle road.
(4) Right-line attack:
This method uses 1, 0, 8 to occupy the three adjacent spaces on the right side of our camp, and then when the other camp has a space, our chess pieces can quickly occupy the space of the other camp with these pieces.
(5) Grasp the right front:
This method is to quickly occupy three adjacent vacancies on the same line in the right corner of our camp.
Law 14:
This method first moves the 1 chess piece to the right a few steps, then goes to the position one step before the midpoint, and then passes through the No.4 and No.3 chess pieces forward, which is more flexible and more ingenious than the straight line on the right, and is called the "vertical Great Wall".