Invitation Open Swiss Championship Post author:Kurt Klamet Post published:17. August 2021 Post category:International Tournaments Invitation Open Swiss Championship 2021 (September 25, 2021) - Dübendorf, Switzerland - Invitation Tags: dübendorf, Invitation You Might Also Like Results from Open Swiss Championship 22. October 2021 Invitation Pannonia Cup 2023 26. July 2023 Invitation Austrian Pannonia Cup 2021 22. September 2021