At title match venues and in streams, ongoing games are sometimes explained on a large Go board. That's "large-board commentary." A professional predicts the next move and lays out variations, reading the game in real time.
POINT 01
A commentator and an assistant run it together.
It's usually run by two people: a professional commentator and an assistant who asks questions. The assistant asks from the viewer's point of view, "Who's better now?" or "Why did they defend here?", so beginners are less likely to be left behind.
- Commentator: shows judgments of the position and candidate next moves
- Assistant: asks viewers' questions on their behalf
- The stones on the large board are updated as the actual game goes on
POINT 02
Join in guessing the "next move."
In large-board commentary, the commentator often predicts where the next move will be. A hit gets the crowd going; a miss starts a new explanation, "Ah, so that's the move." Enjoying predictions that even pros get wrong is the real pleasure of large-board commentary.
POINT 03
The stream's comment section is another large board.
With streamed large-board commentary, you can join from home. In the comments, viewers guess the next move together, and the commentator sometimes picks them up. If an unfamiliar word comes up, try asking in the comments.