Dee ihe ga-eso paragraf a - Penrose nwere nsogbu akwara, ọ dakwara n'egwuregwu Olimpik nke afọ 1970
n'etiti egwuregwu na-agwụ ike. N'ihi nke a, ọ gafere na chess, ebe ọ nwere ihe ịga nke ọma, na-enweta aha International Master (IMC) na 1980 na aha nna ukwu (GMC) na 1983. O duru mba ya gaa mmeri na 9th Correspondence Olympiad (1982<unk>1987).