<prompt> Qedela lo musho olandelayo: Eqenjini le-chess, emele i-USSR, wanikezwa indondo yegolide yeqembu nedondo lethusi lomuntu ngamunye eMidlalweni Yase-  <response>: I-21st Chess Olympiad, eyabanjwa ngo-1974 e-Nice, ngokusebenza kwe- 10 5 -0, yize kukhethwe kuphela njengendawo yokugcina. 