do I need to “know” several openings?

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PopsDaKilla
I’m kinda overwhelmed with “all” of the possible openings and trying to be prepared for them. Is it just part of the learning process? Or are there specific things I can focus on to “generally” improve my game?…at the moment I’m pretty much a “deer in headlights”(300-400ish rating)
hrarray
No. You should probably learn one opening for white and two for black against e4 and d4. Also learn opening principles
RussBell

check it out...

https://www.youtube.com/results?search_query=chess+opening+repertoire

Chess Openings Resources for Beginners and Beyond...

https://www.chess.com/blog/RussBell/openings-resources-for-beginners-and-beyond

https://www.chess.com/blog/RussBell

PopsDaKilla
Thank you both.
tygxc

@1

"trying to be prepared for them" ++ You cannot prepare for everything.

"Is it just part of the learning process?" ++ The learning process is more about tactics and endgames. You will not lose or win bbecause of the opening, but because of tactical mistakes.

"are there specific things I can focus on to generally improve my game?" ++ Analyse your lost games.

"300-400ish rating" ++ That is a sign of frequent blunders. Always check your intended move is no blunder before you play it.

PopsDaKilla
@tygxc thank you. Can I ask what a blunder is ? Or more specifically how they differ from inaccuracies and mistakes?… I see them in the game reviews but I couldn’t tell the difference between a blunder and a mess-up of any other description .
RussBell

A blunder is a specific type of mistake which typically risks the IMMEDIATE net loss of material or worse - the threat of imminent checkmate of the blunderer.  Whereas an inaccuracy, while it technically could be considered a mistake, is not immediately harmful and typically does not risk the loss of material or checkmate, at least not in the short term.  So it's blunders that you must absolutely try to avoid.  The best way to train yourself to avoid making blunders is, as a previous commenter said, is to do a blunder check of your completed games.  The chess.com post-game analysis function will identify and indicate the blunders, inaccuracies and any other mistakes in your completed games.

zone_chess

Don't try to brute-force learn all openings; there's about a thousand (!) of them.
Just pick a few you like and go in depth until you see the underlying connections toward checkmate. (this takes years so be patient with your progress)

Once you see chess as a whole, you can diverge and include more opening systems into your play.

Sadlone

Atleast 3 openings, 1 as white which should be your pet variation, 2 as black 1 defence against e4 and 1 against d4

unicornpancake99

for openings, instead of memorizing all of them, pick a few to memorize and for unfamiliar ones, just improvise something that follows opening principles.

woton

You do not need to "know" several openings.  If you look at my games, you will find that my opponent and I are "out of book" in a handful of moves.  Yet, I am in the top 5% of Rapid and Daily players.

I don't study openings, but I do go over my games, and compare my opening moves with opening moves in Master games.  Eventually, I make "decent" moves by intuition rather than relying on my memory.

Note:  If I wanted to be a top player, I would have to study openings, but Chess is just a hobby with me.

ST33RX

Learn at least 5 openings

UpcommingGM

No just master a few sound opening. As you go higher in rating then learn how to refute some unsound gambit.

Later on, you may just need to have some knowledge on some of the most popular openings.

hrarray
Opening principles is literally more important than openings though, learn them so if your opponent plays a strange opening/takes you out of book you can still play accurate moves.
orlock20

There are some openings with black that depend on the opening by white. Stay away from them. Only titled players really need to know multiple openings mostly because of the traps.

jg777chess

If you’re struggling to get playable middlegame positions then I’d recommend really learning and focusing on opening principles and following them religiously. If you are still struggling then I’d learn a few common opening theories. Our games are won or lost because of blunders at our level. 

-Jordan

SPIDERJO55
Just learn one to start.
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