▁placed ▁in ▁the ▁German ▁Ch ip ▁computer ▁trade ▁magazine . ▁Sch ä fer ' s ▁mother ▁handled ▁customers ▁ordering ▁by ▁phone , ▁while ▁a ▁database ▁was ▁impro vised ▁using ▁notes ▁in ▁a ▁sh oe ▁cabinet . ▁Or ders ▁were ▁processed ▁as ▁either ▁a ▁c ass ette ▁or ▁a ▁flo ppy ▁disk ▁and ▁sh ipped ▁by ▁post . ▁Sales ▁for ▁B oss ▁quickly ▁gained ▁tra ction ▁and ▁attract ed ▁a ▁wide ▁variety ▁of ▁customers , ▁including ▁computer ▁scient ist ▁Kon rad ▁Z use . ▁Par allel ly ▁to ▁King soft , ▁Sch ä fer ▁did ▁minor ▁external ▁work ▁for ▁Düsseldorf - based ▁software ▁company ▁V ob is , ▁where ▁he ▁had ▁a ▁connection ▁to ▁his ▁former ▁shift ▁super visor ▁from ▁Mc Donald ' s , ▁including ▁the ▁translation ▁of ▁computer ▁manual s ▁into ▁English ▁and ▁representing ▁the ▁company ▁on ▁fair s . ▁At ▁on ▁one ▁of ▁such ▁fair s , ▁the ▁ 1 9 8 2 ▁Hob by tr onic ▁in ▁Stuttgart , ▁Sch ä fer ▁sp otted ▁German ▁ch ess ▁grand master ▁The o ▁Sch uster ▁du elling ▁multiple ▁ch ess ▁computers ▁simultaneously . ▁After ▁being ▁convinced ▁by ▁V ob is ▁founder ▁The o ▁Lie ven , ▁Sch ä fer ▁asked ▁the ▁organis ers ▁of ▁the ▁event ▁if ▁B oss ▁was ▁allowed ▁to ▁co - comp ete ▁against ▁Sch uster ; ▁as ▁the ▁organis ers ▁agreed , ▁Sch ä fer ▁quickly ▁set ▁up ▁a ▁V IC - 2 0 ▁running ▁the ▁game . ▁Sch uster ▁took ▁the ▁ch ess ▁computers ▁seriously ▁and ▁was