Kammala jumla mai zuwa: Christian Langeweg ko Kick Langeweg (an haife shi a ranar 7 ga Maris 1937), ɗan wasan Chess ne na Dutch International Master (IM) (1962), mai lambar yabo ta Dutch Chess Championship sau biyar (1969, 1970, 1972, 1980, 1983) da kuma lambar yabo ta Chess Olympiad sau uku (1966, 1970,
1980).