<prompt> John Grantley Cooper born 14 May 1954 shiye kam do sha Welsh chess International Master IM 1984, kam do sha Welsh Chess Championship lan kənasar lokko tulur 1976, 1977, 1978, 1984, 1985, 1992, 1993, 1994, 1995, 1996, kam do sha Chess Olympiad lan kənasar lokko indin  <response>: 1976, saa 1984 lan. 