Sorry ... very busy and when I said I would do it I didn't realise I needed to ZRF101 first. Patience is a virtue so you will need to be very virtuous :)
(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)