John Grantley Cooper (lair 14 Mèi 1954) ya iku juru catur Welsh International Master (IM) (1984), sepuluh kali juara Welsh Chess Championship (1976, 1977, 1978, 1984, 1985, 1992, 1993, 1994, 1995, 1996), kaping pindho juara Olimpiade Catur perak individu (1976, 1984
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