1, gobang is one of the competitive events in the national intellectual games, and it is a pure strategy board game played by two people. Usually both sides use black and white chess pieces respectively, and the empty chessboard starts. Put black pieces first, then white pieces, and the pieces are placed alternately. Only one piece can be placed at a time. The chess pieces are placed on the blank points of the chessboard. After the chess pieces are settled, they shall not be moved to other points, taken away from the chessboard or picked up and put down elsewhere. The first black chess piece can be placed at any intersection of the board. It is the right of both sides to take turns to play, but either side is allowed to give up the right to play, and the first one to form five points wins.

There is also a rule that if you add five pieces, you will eat the piece closest to your opponent. The finished pieces go back to the other side and continue to be used. Finally, the winner is the first person to finish all the works. You can't put any more pieces in the square that has been eaten by the other side. The other side can put them. However, the consumer cannot eat one of the five pieces connected by the opponent unless all the pieces of the opponent are connected into five pieces.