SL-Mark: That's great if you read sign language. He says there's a video that he later made with subtitles, but the one I found didn't have the best ones.
(hide) If you want to play a game with an opponent of a similar level, you can define a required BKR range for a new game invitation. Then nobody with a BKR outside this range will be able to see/accept it. (Katechka) (show all tips)