Opening theories not for under 1600 players?


i think openings are underrated but tactics like pins and forks are still more important. but you need to know enough about openings to guarantee an ok middle-game.

I think some lower rated players buy e.g. a book on the Najdof. If they actually learned all it has to offer, they'd be playing it at e.g. the 2400 level. It's tedious and unnecessary... and without actually understanding the moves it will be (very) hard to remember all the various lines.
Similarly for something like Fundamental Chess Endings. If you actually mastered it, a very narrow aspect of your endgames would be at a very high level. Tedious an unnecessary.
Learn a little in all areas, then repeat: learn a little more in all areas. Sure out of necessity in the beginning opening moves need to be memorized. Instead of a book I recommend playing over a lot of games. You'll learn though repetition and at the same time you'll get to see the sorts of middlegames the moves lead to, and by that perhaps gain a better overall understanding.

Tactics and basic principles are more important than opening study, but it would be foolish to play the opening without having an idea of what the goals of your opening are. For example, if you play the Vienna Game or Bishop's Opening, one of the goals is to get a pawn to f4 before you play your Knight to f3, and to continue with a King-side Attack. One of the goals of the Caro-Kann Defense and it's cousin the Slav Defense is to get your Queen's Bishop outside the Pawn Chain to f5 or g4 before it gets blocked in when you play ...e6.
It doesn't mean you need to learn reams of opening variations - just learn the ideas behind the openings you play or are likely to see played against you. Learn the patterns and, as time goes on some of the traps either side can spring on the other and those goals should guide you to a playable middlegame without following an exact set of moves.

Understanding openings without understanding fundamental tactics and strategy is pointless because the former relies on the latter. A single non-book move will completely throw you out of the water. Memorizing the Caro-Kann for example, is pointless without knowing how to turn their pawn structure into an advantage during the endgame. In the same fashion knowing "all the lines" of the sicillian dragon is pointless if you don't know how to set up basic tactical positions that commonly crop up in those games.
Note that when people talk about "studying opening theory" they usually mean going over all the different lines and variation, and putting them to memory. There is something like fundamental opening theory which is crucial knowledge for even beginners in chess.
"... If you want to play chess competitively, then you must develop an opening repertoire. ..." - GM Patrick Wolff (1997)
"... I feel that the main reasons to buy an opening book are to give a good overview of the opening, and to explain general plans and ideas. ..." - GM John Nunn (2006)
"... the average player only needs to know a limited amount about the openings he plays. Providing he understands the main aims of the opening, a few typical plans and a handful of basic variations, that is enough. ..." - FM Steve Giddins (2008)
Here are two books that strive to improve the reader's understanding of opening play:
Openings for Amateurs by Pete Tamburro (2014)
http://kenilworthian.blogspot.com/2014/05/review-of-pete-tamburros-openings-for.html
https://chessbookreviews.wordpress.com/tag/openings-for-amateurs/
https://www.mongoosepress.com/excerpts/OpeningsForAmateurs%20sample.pdf
Discovering Chess Openings by GM John Emms (2006)
"... For beginning players, [Discovering Chess Openings] will offer an opportunity to start out on the right foot and really get a feel for what is happening on the board. ..." - FM Carsten Hansen (2006)
https://web.archive.org/web/20140627114655/http://www.chesscafe.com/text/hansen91.pdf
"... For inexperienced players, I think the model that bases opening discussions on more or less complete games that are fully annotated, though with a main focus on the opening and early middlegame, is the ideal. ..." - FM Carsten Hansen (2010)
"... Everyman Chess has started a new series aimed at those who want to understand the basics of an opening, i.e., the not-yet-so-strong players. ... I imagine [there] will be a long series based on the premise of bringing the basic ideas of an opening to the reader through plenty of introductory text, game annotations, hints, plans and much more. ..." - FM Carsten Hansen (2002)
https://web.archive.org/web/20140627055734/http://www.chesscafe.com/text/hansen38.pdf

Opening theory, however is very useful, and certainly it isn't a bad idea to build strength in an opening, but tactics and strategy should be given a stronger emphasis. Tactics and strategy have the added benefit of being universally applicable to
A chess tutor, coach, or teacher who teaches you opening theory before you have mastered opening principles and tactics is not a teacher worth learning from. ... I am not saying to not improve your opening play. I would recommend buying a copy of FCO, MCO, or NCO, to use as a reference when analyzing your games. If your grasp of opening principles led you into a book line, see how close you got and where you could improve your play. In fact, you may want to have the first 5-6 moves of 3-4 openings you like to play memorized (as long as you play thrm consistently so you can continuously improve on them). However, spend most of your time developing your thought process and practicing tactics.
"... I feel that the main reasons to buy an opening book are to give a good overview of the opening, and to explain general plans and ideas. ..." - GM John Nunn (2006)
"... For new players, I cannot recommend books that use [an encyclopedic] type of presentation [of opening theory], because the explanatory prose that elaborates typical plans and ideas is usually absent, thus leaving the student without any clear idea why certain moves are played or even preferred over other apparently equivalent moves. ..." - FM Carsten Hansen (2010)
"... [Modern Chess Openings (15th ed.)] pretends to be everything for everybody, but it isn’t; it pretends to be up-to-date and relevant in all chapters, but it isn’t; it should be a good book, but it isn’t. ..." - FM Carsten Hansen (2008)
https://web.archive.org/web/20140626165820/http://www.chesscafe.com/text/hansen110.pdf
I do not think NCO has been revised since 1999. It should perhaps be mentioned that FCO is not really like MCO and NCO.
https://web.archive.org/web/20140626173432/http://www.chesscafe.com/text/hansen128.pdf
Nevertheless: "... [Fundamental Chess Openings by Paul van der Sterren] is not particularly suited for players who are just starting out. I would imagine players rated at least 1400-1500 would get the most benefit from this volume. ..." - FM Carsten Hansen (2009)
http://www.gambitbooks.com/pdfs/FCO_Fundamental_Chess_Openings.pdf
"... For inexperienced players, I think the model that bases opening discussions on more or less complete games that are fully annotated, though with a main focus on the opening and early middlegame, is the ideal. ..." - FM Carsten Hansen (2010)
"... Everyman Chess has started a new series aimed at those who want to understand the basics of an opening, i.e., the not-yet-so-strong players. ... I imagine [there] will be a long series based on the premise of bringing the basic ideas of an opening to the reader through plenty of introductory text, game annotations, hints, plans and much more. ..." - FM Carsten Hansen (2002)
https://web.archive.org/web/20140627055734/http://www.chesscafe.com/text/hansen38.pdf
"The way I suggest you study this book is to play through the main games once, relatively quickly, and then start playing the variation in actual games. Playing an opening in real games is of vital importance - without this kind of live practice it is impossible to get a 'feel' for the kind of game it leads to. There is time enough later for involvement with the details, after playing your games it is good to look up the line." - GM Nigel Davies (2005)

I wish some strong players would personally comment on these topics.
Putting quotes from GMs and FMs whose ideas of "inexperienced" could be anyone under 1800 OTB doesn't really help in context.
The one advice that was from an FM (Chuddog) in a similar thread was one of the only ones that seemed sane to me there.
... Putting quotes from GMs and FMs whose ideas of "inexperienced" could be anyone under 1800 OTB doesn't really help in context. ...
FM Carsten Hansen was writing a book for a series about basics. One reviewer described it as "ostensibly intended for players not far past the beginner stage."
"Thanks for getting this book. You have probably started playing chess quite recently and ..." - FM Carsten Hansen (2010)
... Dan Heisman covers the answer extensively in his Novice Nook articles (including answering this very question about 4 different times in over 12 years of the monthly article).
"... Once you identify an opening you really like and wish to learn in more depth, then should you pick up a book on a particular opening or variation. Start with ones that explain the opening variations and are not just meant for advanced players. ..." - Dan Heisman (2001)
https://web.archive.org/web/20140626180930/http://www.chesscafe.com/text/heisman06.pdf
I wish some strong players would personally comment on these topics. ...
I think it is well to keep in mind some pitfalls that a strong player might fail to avoid. There are some who make the unfortunate assumption that, if something worked for one person, it will work for others. Another dangerous assumption is that the reader has the same ambitions as the writer. With these things in mind, I think it is wise to be wary of a writer who is dogmatic with unqualified assertions about what is to be done. There are other things that seem to me to be warning signals. One big one is a tendency to talk about ideas as if they are absolute instead of a matter of degree. Things like:
whether or not a person has mastered tactics
whether or not a person is serious
whether or not a person is memorizing lines
... This quote, taken out of context, misses the entire point Dan was making in the article. Here is the full context of that section (emphasis is mine):
"Opening Books
... slowly build up
your opening tree."
First of all, I provided a link to the entire article, so that anyone could judge for themselves whether or not I was misleading anyone. Second, lets take this sentence:
"... The first thing to learn about openings are general opening principles. It is of no use to purchase 'The XYZ variation of the Caro-Kann' and try to learn it if you can’t follow a guideline like 'Try to move every piece once before you move any piece twice, unless moving a piecetwice is necessary for safety (good for your safety or bad for his!).' ..."
As anyone can see, he wrote, "... if you can't follow a guideline like ..."
The passage does not say, "... if you haven't mastered opening principles ...".
We do see a reference to mastering opening principles above, but it is in the writing of zac_howland.
Also, note that the sentence begins, "It is of no use to purchase 'The XYZ variation of the Caro-Kann' and try to learn it if ..."
The sentence does not begin, "It is of no use to look at any book on an opening if ..."
Indeed, right after the portion quoted by zac-howland, Dan Heisman went on to write, "Once you identify an opening you really like and wish to learn in more depth, then should you pick up a book on a particular opening or variation. Start with ones that explain the opening variations and are not just meant for advanced players." I see nothing to indicate that the pick-up-a-book passage was intended only for those who have "mastered opening principles". Here, once again, is a link to the whole thing.
https://web.archive.org/web/20140626180930/http://www.chesscafe.com/text/heisman06.pdf
... And if that did not convince you that the quote was out of context, here is an Q&A from the same series of articles about a year later (Novice Nook, 4/14/2002) - again, emphasis mine:
"Reader Question
... For very weak
players just get your pieces out safely.
Is there any reason to suppose that this advice is intended for everyone who has not "mastered opening principles"?
For not-so-beginners:
1. Understand the three main goals of the opening: Mobilize ALL your
forces, castle your king into safety, and get some control of the center.
Of course the overall goal is to reach a playable middlegame
where your forces have good things to do.
See anything to rule out doing this with the help of some sample games in a book on an opening?
2. ... Learn the general opening principles that apply to all openings to
help you reach those goals. The most important is to develop your
pieces quickly and efficiently. ...
See anything to rule out doing this with the help of some sample games in a book on an opening?
... Play sharp openings, like gambits, to learn tactics. ...
See anything to rule out doing this with the help of some sample games in a book on an opening?
... Learn the traps in the openings you play ...
See anything to rule out doing this with the help of some sample games in a book on an opening?
... Look up the games you play after you play them to see 'What
would I do differently if an opponent played the same moves in a
future game?', ...
See anything to rule out doing this with the help of some sample games in a book on an opening?
... Don't spend a lot of time studying specific lines - use that time to
study tactics instead.
See any reason to think that Dan Heisman believed that he was ruling out looking at some sample games in a book on an opening?
If you must study specific lines, first learn the
'main line' and then over time you can branch out to greater width. ...
See anything to rule out doing this with the help of some sample games in a book on an opening?
... Look at games played by good players in your opening to see what
the ideas are in the openings you choose: where the pieces usually go,
where the pawn breaks are, where to attack in the middlegame, etc. ...
See anything to rule out doing this with the help of some sample games in a book on an opening?
... Don't worry too much about openings - it is probably the least
important part of chess except for knowing note #1.
See any reason to think that Dan Heisman believed that he was ruling out looking at some sample games in a book on an opening?
Once you are rated over 1300 USCF/FIDE, then specific opening
study should be expanded,
See any reason to rule out that the post-1300 expanding could build on pre-1300 knowledge from some sample games in a book on an opening?
but my personal belief – and that of many
experienced instructors – is that spending a large amount of time
studying specific opening lines is not a really efficient use of your
chess study time until you approach a rating of at least 1800-2000"
See any reason to think that Dan Heisman believed that all lower rated players should not look at some sample games in a book on an opening? It seems to me that he mentioned a number of ideas where it would be natural to look for help from some sample games in a book on an opening.
https://web.archive.org/web/20140627023735/http://www.chesscafe.com/text/heisman15.pdf
... lets take this sentence:
"... The first thing to learn about openings are general opening principles. It is of no use to purchase 'The XYZ variation of the Caro-Kann' and try to learn it if you can’t follow a guideline like 'Try to move every piece once before you move any piece twice, unless moving a piecetwice is necessary for safety (good for your safety or bad for his!).' ..."
As anyone can see, he wrote, "... if you can't follow a guideline like ..."
The passage does not say, "... if you haven't mastered opening principles ...".
We do see a reference to mastering opening principles above, but it is in the writing of zac_howland. ...
... If you cannot follow an opening principle like "do not move a piece twice in the opening, unless there is a tactic", then you have not mastered opening principles ...
I do not see a contradiction of my observation. Perhaps some logical notation will help. Suppose we use ~M for not mastering opening principles,
~F for being unable to follow a guideline like 'Try to move every piece once before you move any piece twice, unless moving a piece twice is necessary for safety (good for your safety or bad for his!)',
and ~U for not being of use to purchase 'The XYZ variation of the Caro-Kann' and try to learn it.
As I read it, Dan Heisman wrote, ~F -> ~U.
If zac-howland now argues, ~F -> ~M,
that still doesn't make it appropriate to attribute ~M -> whatever
to anyone other than zac_howland.
... lets take this sentence:
"... The first thing to learn about openings are general opening principles. It is of no use to purchase 'The XYZ variation of the Caro-Kann' and try to learn it if you can’t follow a guideline like 'Try to move every piece once before you move any piece twice, unless moving a piecetwice is necessary for safety (good for your safety or bad for his!).' ..."
... Also, note that the sentence begins, "It is of no use to purchase 'The XYZ variation of the Caro-Kann' and try to learn it if ..."
The sentence does not begin, "It is of no use to look at any book on an opening if ..."
Indeed, right after the portion quoted by zac-howland, Dan Heisman went on to write, "Once you identify an opening you really like and wish to learn in more depth, then should you pick up a book on a particular opening or variation. Start with ones that explain the opening variations and are not just meant for advanced players." I see nothing to indicate that the pick-up-a-book passage was intended only for those who have "mastered opening principles". Here, once again, is a link to the whole thing.
https://web.archive.org/web/20140626180930/http://www.chesscafe.com/text/heisman06.pdf
... I never said "do not look at an opening book if ..."
I did not claim that you did say that. I was merely indicating that, as far as we could tell, Dan Heisman was open to the idea of picking up a book on a particular opening even if one has not mastered opening principles.