20 17 women's chess world championship will be held in Tehran, Iran from February 10 to March 3. According to the Iranian law that "all women must wear headscarves in public", all players are required to participate in the competition, which has caused many players' dissatisfaction.

There are 64 top female players in this World Chess Championship, but many famous players, such as Hou Yifan, have indicated that they will not participate in this competition. Hou Yifan refused to participate because he was dissatisfied with the competition system.