onigoroshi: it is impossible to add handicaps in chess. there are no chess grandmaster can play without two knights against any body. the main reason is, the development of chess is very slow compared with the chinese chess, the one play with no knights must play attacking chess right from the first move.
(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)