Yes, only that the chess room door is a bit tricky, since I personally removed with it a MPQ file, but the chess room also has a door blocking you if you don't remove the door. Optionaly you could run to it, stealth if a Night Elf and wait for autounstuck cooldown to go out (1 hour). - Personaly I think it is nearly impossible for a non stealth class to manage to get to the chess room.