Chess YouTuber Antonio Radic's channel was blocked for 'harmful' content
Radic thinks his discussion of 'black versus white' in chess strategy set off the AI
Researchers tested AI software 680,000 comments on YouTube chess channels
Over 80 percent of comments marked as hate speech were incorrectly flagged
Terms like 'black,' 'white,' 'attack' and 'threat' seemed to have set off the filters