<prompt> Kalima dǝga tǝmzǝ: Pfeiffer dǝ Germanybe kǝn arakkǝ lan olympiads chessbe lan lokko arakkǝ lan kǝnasartǝ 1950-1960, kuru medal bronzebe indi kufuwu-a kam-a lan kǝnasartǝ.  <response>: Chess Olympiad 9th dǝ Dubrovnik 1950 lan. 