Have 1 Move button above board, and have 1 move button along with comment boxes under board to make 99% of game playing quicker by submitting move without having to scroll down.
(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)