Andika mwendelezo kwa aya hii - Christian Langeweg au Kick Langeweg (amezaliwa 7 Machi 1937), ni Uholanzi Chess International Master (IM) (1962), mara tano Uholanzi Chess Championship medali (1969, 1970, 1972, 1980, 1983) na Chess Olympiad mara tatu medali ya mtu binafsi (1966
1970, 1980).