Pedzisa mutsara unotevera: Schmid akapiwa zita reInternational Arbiter muna 1975. Akanga ari mutongi mukuru weFischer<unk>Spassky 1972, Karpov<unk>Korchnoi 1978,
Kasparov<unk>Karpov 1986 World Championship mitambo, uye nokuda Fischer<unk>Spassky 1992 'Revenge Match'.