Learn Swedish: Labyrinten är klurig, så det gäller att komma ihåg vägen. - The maze is tricky, so it is crucial to remember the way.

While both express importance, det gäller att specifically highlights a crucial necessity for success in a given situation. It translates closest to 'it is crucial to' or 'it all comes down to', implying that remembering the way is the specific action required to beat this tricky maze.

The word klurig is translated as 'tricky'. Is it interchangeable with svår (difficult)?

Not entirely. Svår is the general word for 'difficult' or 'hard'. Klurig specifically implies that something is like a puzzle, requiring cleverness or problem-solving skills to figure out. A heavy box is just svår to lift, but a maze or a riddle is klurig.

Could I use the verb minnas instead of komma ihåg for 'remember' here?

Grammatically yes, but komma ihåg is much more natural here. Komma ihåg is the standard, everyday phrase for practical memory, like remembering a fact, a task, or a route. Minnas often sounds a bit more formal or nostalgic, like recalling a fond memory from the past.

Why does the word order after så not trigger the V2 rule by putting the verb before the subject?