最强大的国际象棋引擎之一，编码规范，支持多线程。-One of the most powerful chess engine, coding standards support multi-threading.

在一个国际象棋棋盘中摆Ｎ个皇后,使这Ｎ个皇后不能互相被对方吃掉,-In a chess board put N queen, make this N queen cannot be eaten by the other party to each other,