Do the little chess extra "mini-games" actually help?

What I mean by mini-games is those where you have to move a knight to every square on a board without touching a square twice sometimes with a queen on that you have to evade attack by. I would have thought them sort of things would be just like a trick to impress fellow chess players because I personally don't do them but if somebody said get this knight from this square to that square by the most efficient route and avoid being attacked it would be simple. So is that mini-game with the knight just more of a soviet chess party trick (because I've heard of a lot of old russian GMs using it to teach people)?

where do i find these minigames? Sounds like fun and also like it would help my game very much, or if anything make my decisions in blitz far better.

Zack... They're more of a training method... IM Daniel Rensch mentioned how to do them in a video which was about visualisation but I can't remember the exact name of the video

Mark...I think it doesn't help since I'd just think "ok, I need to get to this square from here so I need to go to this square, that square..." then I'd just check other routes to see which would be safest, fastest, best for tempi (if you include any threats of queens, rooks or checks) then work it out from that and I've never once done those soviet training methods so I can't really see any point in that particular chess training exercise

Yeah but it would take you much longer to do all that figuring out than it would to imprint those patterns into your brain, that way you can spend more time on more tactical positions and possibilites. Being able to see patterns faster will allow you to figure out better strategies by being able to analyze faster(such as computers can analyze instantly, thus are able to beat humans.)