Mezue ahịrịokwu na-esonụ: N'iji ya tụnyere nnukwu asọmpi ndị gara aga dị ka asọmpi egwuregwu London 1851,
N'asọmpi egwuregwu chess nke London na 1862 na asọmpi egwuregwu chess nke Paris na 1867, e nwere ihe ọhụrụ abụọ dị mkpa: a na-eji elekere chess eme ihe maka oge mbụ (a ghaghị ime ihe 20 kwa elekere), a na-agbakọkwa ihe dị ka ọkara isi.