▁category . ▁If ▁the ▁number ▁of ▁applic ants ▁who ▁are ▁sib lings ▁exceed ▁ 3 0 % ▁of ▁places ▁available , ▁the ▁remaining ▁applic ants ▁will ▁take ▁up ▁places ▁reserved ▁for ▁central ▁allocation , ▁reducing ▁the ▁places ▁available ▁in ▁the ▁second ▁round . ▁In ▁ 2 0 2 0 , ▁a ▁number ▁of ▁popular ▁primary ▁schools ▁had ▁to ▁reduce ▁their ▁number ▁of ▁places ▁for ▁central ▁allocation ▁as ▁a ▁result . ▁ ▁The ▁points - based ▁system ▁for ▁the ▁remaining ▁places ▁involves ▁multiple ▁criteria ▁for ▁calculating ▁points . ▁These ▁include ▁whether ▁the ▁child ▁applic ant ' s ▁parents ▁or ▁sib lings ▁work ▁or ▁study ▁at ▁secondary ▁schools ▁or ▁kind er gart ens ▁affili ated ▁with ▁the ▁primary ▁school ▁applied ▁to , ▁affili ation ▁to ▁the ▁same ▁religion ▁or ▁organisation ▁as ▁the ▁primary ▁school , ▁and ▁age . ▁School s ▁are ▁not ▁allowed ▁to ▁conduct ▁tests ▁or ▁inter views ▁on ▁the ▁applic ant ' s ▁acquired ▁knowledge . ▁ ▁Central ▁allocation ▁Children ▁who ▁did ▁not ▁receive ▁any ▁offers ▁in ▁the ▁Dis cret ion ary ▁Places ▁stage ▁obtain ▁a ▁place ▁in ▁the ▁Central ▁Al location ▁stage . ▁The ▁Central ▁Al location ▁stage ▁is ▁divided ▁into ▁two ▁parts . ▁In ▁the ▁first ▁part , ▁parents ▁may ▁choose ▁up ▁to ▁three ▁schools ▁in ▁any ▁school ▁net ; ▁however , ▁of ▁the ▁places ▁which ▁remain ▁available ▁for ▁central ▁allocation , ▁only ▁ 1 0 % ▁are ▁reserved ▁for ▁allocation ▁in ▁the ▁first ▁part . ▁In ▁the ▁second ▁part , ▁parents ▁may ▁rank ▁schools ▁within ▁the ▁school ▁net ▁they ▁res