I really should have known better as the source for my information on Grenke was Susan Polgar's social media feed but she hasn't provided any source for her information as yet.Leonard Barden wrote: ↑Fri Mar 06, 2020 6:13 amI don't see Grenke as cancelled, at least not yet:
Grenke statement of 3 March:
The organisation of the GRENKE Chess Open & Classic is aware of the Corona virus and we keep a close eye on further developments. We will keep you informed.
I found a follow up tweet to yours Leonard from the organisers in German, dated March 3, which translated to: "Of course we also deal with the Corona Virus and the possible consequences for the GRENKE Chess Classic and Open tournaments in 2020. As of now: the event is taking place, but we are of course closely monitoring the developments." So with just over a month to go (9-13 April) they are still intent on giving it a go.