The international number consists of a hexagonal chessboard and ten pieces with 0-9 pairs of numbers on the pieces. The chessboard has ten numbers 0-90 according to the law. Before playing chess, players should put their ten pieces of the same color in their respective positions.

Brief introduction of international digital chess

(2) the rules of chess:

The rule 1 was called; Move; Any chess piece can move one step to the adjacent empty space;

The second rule is called; Adjacent; Any chess piece can skip an adjacent chess piece;

The third rule is called; Single span; A piece can cross several pieces on the same line with it, but the number of these pieces to cross must be calculated by mathematical operation.

The third rule should be noted: (1) the placement 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 the chess pieces;

The fourth rule is called; Continuous span; Any chess piece can continuously span several chess pieces that can calculate the same number at the same time.

(3) Score calculation: when one side's ten pieces occupy the other side's ten vacant positions first, that side has the right; Stop; After stopping, the two sides calculate the score and compare the sizes. There are two calculation methods:

(1) difference sum method: subtract the number of pieces from the occupied number of pieces (and vice versa), and then add all the pieces;

(2) Product-sum method: the number of chess pieces is multiplied by the number of chess pieces occupied, and then the scores of all chess pieces are added.

The opening method of counting chess

(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".