<prompt> Qedela umusho olandelayo: UBerliner wadlalela iqembu lezwe lakhe kuma-Olympic ngo-1991  <response>: UHelsinki ngo-1952, edonsa umdlalo wakhe kuphela ebhodini lesibili. UBerliner wadlala izikhathi ezine e-US Chess Championship. Ngo-1954 eNew York, wahola 61213 ukuze abophe izindawo eziyi-8 × 9; U-Arthur Bisguier wanqoba. Izikhathi ezintathu zokugcina lapho uBerliner edlala khona eMqhudelwaneni Wase-U.S., uFischer wayinqoba le midlalo. Ngo-195758 eNew York, uBerliner waba nomphumela wakhe omuhle, indawo yesi-5 ene-713. Ngo-1960-61 eNew York, wathola amaphuzu angu-41211, walinganisa indawo yesishiyagalombili kuya kweyishumi. Ekugcineni ngo-1962 kuya ku-1963 eNew York, wahola u-511 ukuze alinganise indawo yesi-7 kuya kweyesi-8. 