The official IARCS Website only shows the list of qualified candidates for both ZCO and ZIO but the cutoffs only for ZIO.
Could someone be please grateful enough to give a link to the cutoffs or write them below for any year(s) you might know 
.
1 Like
The cut-off for ZCO in 2019 was obtaining a non-zero score (10 iirc). I don’t know what the cut-off was before 2019 and ZCO was not conducted last year.
Wow!
Non zero score = Qualified for INOI !!
Brute force on SINGTOUR was easy and it could get you 15 points!
Hope it’s the same this year 
I’m sorry for the confusion, I meant ZCO held in 2019 for IOI 2020.
Problems in that year were:
You have linked to the same problem in both the links.
But I got it, Thanks!