Is the Kádas Opening any good?

I think h4 is almost better for Black because you have lost the option of castling short. Black doesn't need to know many theory he just has to remember to castle long and he will be fine, maybe even slightly better. Playing h4 on move one looks very stupid to me, perhaps even more stupid than b4, f4 or g4

So I see that h4 is terrible, but I did find Scandinavian Defense: Kadas Gambit. (as black) It has nothing to do with h4 but it does seem like a promising opening. I might try it.
https://www.youtube.com/watch?v=u__O6-oWHPI

Back when I started out, I played the crab. Yeah, I was actually dumb enough to believe bringing rooks out in the opening is a good and underrated strategy. No wonder I reached 300 at one point in my chess run.

"Is the Kádas Opening any good?"
No.
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In the course of GM Svidler about the Grunfeld Defense, he say that his friend - GingerGM, has come up with h4 ["Harry"] and that it was played seriously by GM Grischuk, and it turns out that it's so good that Svidler say you should switch to a King's Indian Defense. But he say that playing h4 later, is weak.
So here you go - it's all a matter of when to push "Harry".

Yes, I know h4 sucks. Thanks. But I did find that there is an oppening that doesn't involve h4. Called the Scandinavian Defense, Modern, Kadas Openning. This openning was called after the grandmaster Kadas. I in my last post I did mention this openning as an interesting alternative. With a video for explanation.
So I see that h4 is terrible, but I did find Scandinavian Defense: Kadas Gambit. (as black) It has nothing to do with h4 but it does seem like a promising opening. I might try it.
Objectively it is not good, as 1 h4 does not contribute to the center, does not develop a piece into play and weakens the king's side. The main advantage is that it takes black out of any preparation and forces black to think of his own right starting move 1. Black may also try to refute it, overextend and lose.

So I see that h4 is terrible, but I did find Scandinavian Defense: Kadas Gambit. (as black) It has nothing to do with h4 but it does seem like a promising opening. I might try it.
Oh that. It looks interesting but I’m not sure black has enough compensation. It’s still quite complicated though.
To the contrary I do say it is Indeed a fine opening it is my go to opening for almost every game for the last 2 or 3 years and I developed my style with it. If you click on my profile you can review any of my games as white and I'm sure you'll notice they are predominantly kadas opening wins. Kadas opening only works if you plan ahead. Starting at h4 allows you to observe what kind of player black is. Most and I mean almost all play e4 or d4, very predictable. If you follow with g4 then e3 the bishop to e2 and advance your h4 to h5. Followed by moving pawn to d3 to attack the dark file with bishop. It's a lot of planning trial and error but if sticking to it you can really be powerful. 1 error and it's your head.
So I see that h4 is terrible, but I did find Scandinavian Defense: Kadas Gambit. (as black) It has nothing to do with h4 but it does seem like a promising opening. I might try it.
Stay on topic, please.

To the contrary I do say it is Indeed a fine opening it is my go to opening for almost every game for the last 2 or 3 years and I developed my style with it. If you click on my profile you can review any of my games as white and I'm sure you'll notice they are predominantly kadas opening wins. Kadas opening only works if you plan ahead. Starting at h4 allows you to observe what kind of player black is. Most and I mean almost all play e4 or d4, very predictable. If you follow with g4 then e3 the bishop to e2 and advance your h4 to h5. Followed by moving pawn to d3 to attack the dark file with bishop. It's a lot of planning trial and error but if sticking to it you can really be powerful. 1 error and it's your head.
You explaining the theory to the kadas opening doesn’t mean it’s a fine opening… 1 error and it’s your head could be used to describe literally any viable opening. Kadas opening only puts you at a disadvantage of around 1 pawn, which would be considered a mistake, but is understandable to happen for a middlegame move since you’ve probably never seen the position before but is inexcusable for move 1 when you’ve been playing for years especially when opening theory is so much more known and easier to learn now with the internet n stuff.
When I was a lower rated player I used to play the Kádas Opening a lot. I stopped once I realized that you wanted to take control of the middle. Looking back, I'm wondering if the Kádas opening had any advantageous use at all; traps, positioning, etc.?