Humorously to me, there is now a tournament in Korea called 복면기왕 (King of Mask Go Player, I guess). http://m.cyberoro.com/news/news_view.or ... num=524484

Can you guess who the players are?
An advertisement for kicks:

Indeed, I recall that one pro player indicated that he had more confidence in his play while wearing a mask. By his own identity, perhaps he felt more self conscious.gowan wrote:In the case of the singing contest the mask makes sense because what people hear seems to be influenced by what they see. For example, how a singer moves him/her body can make listeners perceive something that they wouldn't hear in a recording. In the go player case, not seeing the opponent's face can remove a lot of the players' body language seen in the face. The facial expression can affect how the opponent plays. For example showing confidence in a complicated position might make the opponent more cautious. Certainly knowing I am playing Park Jung-whan would make me decide what looks like a mistake by Park is probably not.