Active Incidents with all subtask closed

[licmartinez]

Hello colleagues i need some advices regarding this request , i was tryng to configured in zurick version platform analytics , to get all inicdent that our active and not resolved and the subtask are all closed but for now i have try several scenarios and none of them work, 
1- i have tried base table incident here ii just use the the condition is active is true , and state is not resolved , and assignment group is x. then i use the related conditon to get into greater then one incident task-->parent
then here i use state is closed and resoltuion code is not duplicted,
here the results is partylly true , because i get incident that our active but in the subtask i getting as long is one closed then i get this ticket but i need the subtask list to be all closed ..
2- second round then i try to give a flip to the logic same base inicdent table same conditions thne in related list condition i have put none incident task --> parent , then in the condition isaid open, work in progress , pending , resolution code not duplicated , so iwas think i might get all closed incident with this, what happens is the i get all active tickets but the list of sibtask they dont conain none and some i get all closed , so here is also partially true because i get some of the incident with all subtask closed but also get some incident that  have now.. hopelly someone know something similar and can tell me something. Thank you