<prompt> Qedela umusho olandelayo: UMagnus Wahlbom owazalwa ngo-15 Meyi 1945 ungumdlali we-chess waseSweden, owawina i-Swedish Chess Championship 1974, owawina indondo yethusi ye-Olympiad Chess  <response>: Ngo-1976, kwaqedwa umsebenzi. 