Koedem Open 2018 The Koedem Open 2018 will take place on October 20 in Ötigheim, Germany. Official invitation: Invitation Koedem Open 2018 Registration: Name(required) Club FIDE rating I agree that my personal data (name, first name, DWZ, club) will be published for the tournament and for coverage (including on this website).(required) I agree that photos of me at the above mentioned event will be published for the purpose of coverage (including on this website).(required) Yes. No.