LOL, my niece told me about this a few weeks ago. I had a hard time understanding it - "you do boxing, and then you play chess?"
I had never heard of it, and couldn't believe that she was interested, but there is a tradition of practice hematoma in my family.
I have never played chess, so I couldn't speak to the dilution, or lack of, in the arts as a result of this.
"In case you ever wondered what it's like to be knocked out, it's like waking up from a nightmare only to discover it wasn't a dream." -Forrest Griffin