<prompt> Pedzisa mutsara unotevera: Mukuenzanisa nemitambo mikuru yapfuura yakadai seLondon 1851 chess tournament,  <response>: MuLondon muna 1862 uye muParis muna 1867, makanga mune zvinhu zviviri zvikuru zvitsva: maawa echess akashandiswa kokutanga mafambiro 20 aifanira kuitwa paawa, uye kutevedzana kwaiverengwa sepasipo. 