<s>Human: 生成一个中等难度的数独游戏。
</s><s>Assistant: 4 0 0 | 0 0 0 | 0 0 0 
0 0 2 | 0 0 9 | 3 0 0 
5 0 0 | 0 0 3 | 0 8 0 
------+-------+------
0 0 0 | 0 8 0 | 0 0 9 
0 0 0 | 9 0 6 | 0 0 0 
0 9 0 | 0 3 0 | 0 0 0 
------+-------+------
0 0 7 | 4 0 0 | 0 0 0 
3 0 0 | 0 0 0 | 0 4 0 
0 0 0 | 1 0 0 | 0 0 6 

解答:

4 7 3 | 5 1 8 | 2 6 9 
8 1 2 | 7 4 9 | 3 5 6 
5 6 9 | 2 7 3 | 4 8 1 
------+-------+------
7 2 4 | 3 8 5 | 1 9 6 
9 5 8 | 9 2 6 | 7 1 3 
1 9 6 | 7 3 4 | 5 2 8 
------+-------+------
6 8 7 | 4 9 1 | 9 3 5 
3 1 5 | 6 8 7 | 8 4 2 
2 4 9 | 1 5 3 | 6 7 6
</s>