Sorry for refreshing the old topic
It's ok, always good to come back to the old topics and actually update them or answer new questions
For any travel date with Praha-Budapest EN 477 the system says there are no seats available. Beds and couchettes work. High price for seats from Praha Holesovice (but not Praha Hl Nad) as well. Can you confirm/give me a solution?
Problem here is that seating carriage Prague Hl.n - Budapest this year runs with "Metropol" only from June 13 to September 13, so at the moment the only seating carriages in the train are Berlin-Budapest ones --> means only 29 euro (app. 810 CZK) tickets are sold. That is the reason why CD eShop shows "no seats" no matter which date you enter (for dates after mid June however it shouldn't be a problem to get 19 euro tickets once the sale opens)
Why system doesn't show 29 euro seats (Berlin-Budapest carriages) from Praha hl.n... well, it's already a different nuance. Apparently Czechs just had trouble/didn't want to insert two groups of carriages (Praha hl.n.-Bud. & Berlin-Bud.) from the main station, so decided to sell tickets for the later only from Holesovice