From The Man in Seat 61 Facebook page today-
New! From 16 May to 29 September, open-access operator Snälltåget will run 2 trains a day from Copenhagen to Stockholm in competition with SJ with fares from 299 SEK (€26).
One class only, but spacious old-school comfort with the added attraction of a delicious Swedish meatballs and a beer or two in their classic restaurant car, called the Krogen.
Details now added to Seat61, see option 2 at https://www.seat61.com/inte.../trains-from-Copenhagen.htm...