ganhei duas medalhas de bronze na OBMEP (olimpiadas brasileira de matematica das escolas publicas) duas de prata e uma de ouro :) visite www.obmep.org.br
(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)