game rules:
1. There are a number of black and white chess pieces scattered on the Zhenlong chessboard;
2. Draw a closed circuit through all the chess pieces on the chessboard;
3. If a white chess is passed, it will pass in a straight line, and if a black chess is passed, a 90-degree turn will pass;
4. The blank grid can not pass through, or pass through in a straight line or turning.
Zhenlong Chess Game-the eighth season of the most powerful brain official game of the same paragraph, the first question of the summit league and the Lingxiao league competition.