Mezue ahịrịokwu na-esonụ: Karpov na Kasparov gbara asọmpi egwuregwu iri na abụọ site na Septemba 21 ruo 24, 2009, na Valencia, Spain. O nwere egwuregwu ngwa ngwa (ma ọ bụ ọkara ngwa ngwa) na egwuregwu ọkụ asatọ ma mee ihe dị ka afọ 25 mgbe ndị egwuregwu abụọ ahụ zutere akụkọ ifo na
Asọmpi Iko Mba Ụwa nke Chess 1984. Kasparov meriri egwuregwu ahụ 9<unk>3.