Common inquiries:
Registration help:


A number will be published here that is available for the week of the contest and the week prior to it.

Register for the challenge

Register Now

Registration is always open, but make sure you check the official challenge dates so you know when your students can participate.

Stay informed on our mailing list

Note: this is a very very low frequency mailing list. You will basically receive at most 4 e-mails per year.


Contest director Eljakim Schrijvers:
Support contact Alieke Stijf:
Programmer Arne Heijenga