Dee ihe na-aga n'ihu maka paragraf a - Kasparov Gambit 8...d5 ka a na-egwu ugboro abụọ na World Chess Championship 1985
, ma ọ fọrọ nke nta ka ọ pụọ na nna ukwu praxis mgbe egwuregwu Karpov <unk> Van der Wiel, Brussels (SWIFT) 1986.