Pedzisa mutsara unotevera: Christian Langeweg kana Kick Langeweg (akaberekwa musi wa7 Kurume 1937), muDutch chess International Master (IM) (1962), kashanu-nguva yeDutch Chess Championship medalist (1969, 1970, 1972, 1980, 1983) uye Chess Olympiad katatu-nguva yega yega medalist (1966,
1970, 1980).