<prompt> Pedzisa mutsara unotevera: John Grantley Cooper akazvarwa 14 Chivabvu 1954 muWelsh chess International Master IM 1984, gumi-nguva Welsh Chess Championship anokunda 1976, 1977, 1978, 1984, 1985, 1992, 1993, 1994, 1995, 1996, kaviri Chess Olympiad munhu sirivha menduru anokunda  <response>: 1976, 1984. 