<prompt> John Grantley Cooper born 14 May 1954 shima Welsh chess International Master IM 1984, sau mewun loktu lan Welsh Chess Championship lan kənasar 1976, 1977, 1978, 1984, 1985, 1992, 1993, 1994, 1995, 1996, sau indi lan Chess Olympiad lan kənasar medal silver lan 1976  <response>: 1984 lan faidatin. 