Similar story, about 30min left in-flight enroute to Vnukovo, only to be told "airport is closed".
"Technical reasons" meaning a soon to depart presidential flight. Plenty of fuel so we entered the hold in icing conditions, in the Hawker.
Not a good idea, we nearly ran out off TKS anti-ice fluid and after 45min decided to cut our losses and head for SVO.
Oh well.
Littletone.