Quoting the post in the group:
Dear participants,
This page will be used for the distribution of official information about the tournament. Thank you very much for the registration on the website: registration-form The e-mail used for the registration will be used as well for updating the starting list, pairings, results and standings.
The complete text of the tournament announcement is available as a pdf file: https://hgos.hr/CroatianGoOpen2020
Feel free to distribute this information in your go community!
With kind regards, Damir Medak Croatian Go Alliance