<prompt> Qedela umusho olandelayo: UBöök wadlala nabadlali abaningi abaphambili emhlabeni, futhi wayenerekhodi elihle ngokumelene noMiguel Najdorf 1 0 2. Wanqoba uMax Euwe ngamatshe amnyama eDubrovnik ngo-1950, kanye nomdlali we-chess wase-Estonia uPaul Keres e-  <response>: Ama-Olympic aseHelsinki ka-1952. 