eight queen problem

例句：

1. 1. The Eight Queens Problem is a classic computer science problem that has been studied for decades.
   八皇后问题是一个经典的计算机科学问题，已经被研究了几十年。
2. 2. In the Eight Queens Problem, we are trying to place eight queens on an 8x8 chessboard so that no two queens threaten each other.
   在八皇后问题中，我们试图将八个皇后放在一个8x8的棋盘上，使它们之间没有威胁。
3. 3. The Eight Queens Problem is a classic example of a combinatorial optimization problem.
   八皇后问题是组合优化问题的一个例子。