The clay game I played when I was a child was called "Walking to the Old Nest". How to play it? I forgot. I really want to remember. . . .

1. First, dig two rows of holes in the ground with five holes in each row. If you want to save trouble, just draw a circle on the ground. The five holes near your row belong to your own side, that is, five sheep.

2. Put five pieces in each hole, ***5* 10=50 pieces;

3. Decide who will go first by punching in, drawing lots or agreeing;

4. The forerunner chooses one of the ten holes, holds the seed in his hand and throws it clockwise from the next hole. Drop a seed in each hole in turn. When all the seeds in his hand were lost, he grabbed the seeds in the next hole and threw them until the next hole was empty. For example, if the last child is thrown into hole A and hole B is empty, then the child in hole C is his own. There are rules of the game here. If hole c is also empty, the gain is zero. However, if the hole C has sub-holes, the hole D behind the hole C is empty, and the sub-hole of the hole E also belongs to itself, and the following holes F and G also apply this rule.

5. Then switch to your opponent. Similarly, he can choose one of the ten holes to start with, and the rules are the same as above;

6. Continue until there are no holes in ten holes. If only one or several children can't decide the ownership according to the above rules, they can be allocated by agreement or lottery.