Chess position knowledge

Hello..
I have a problem to reach 1800 elo points.
My rank is between 1550 and 1750 elo points, but when I use chess mentor program's it says that I have about 2100 elo points. Somethimes I solve problem which is worth 2750 elo points without mistakes, but I do not know how to build the position on the board.
I need advice, how to overcome this problem and start to play beautiful chess..
I have lot of books, such as :
1.Think Like a Grandmaster - Kotov Alexander
2.Mastering Chess Tacticts -Neil McDonald
3.Play like a grandmaster - Kotov Alexander 
4.The art of atacking - Zenon Franco 

Also, I was thinking to purchase diamond premium and practice with chess mentor... 

You are reading the wrong books.

Read John Nunn's excellent book 'The 6.Bg5 sicilian najdorf'. It is 300 pages long and deals with the 6.Bg5 najdorf sicilian. Your results are bound to improve.

Amazing. The classics that the OP has read are the wrong books, but a book that deals with an opening after move 6 is the "right" book? Even John Nunn would disagree with that!

Jaksha, the books you mentioned are enough to help you to raise your level, but there are several things going on here:

A) You believe the chess mentor rating over your practical experience. That is wrong. Trust your performance over any program that tries to guess your rating based on how well you solve a problem. Chess is about far more than problem-solving.

B) In order to figure out how to improve, you must do an honest self-evaluation. By honest, I do not mean brutal. Figure out your strengths as well as your weaknesses. Be as precise as possible about your weaknesses. For instance, it is not enough to say that you are weakest in the endgame. Are you weaker in Pawn endings or minor-piece endings? How are your rook endings? How are your transitions to the endgame?

C) Come up with a specific plan of attack to improve your play by targetting your weakest area. 

D) Reassess your strengths and weaknesses regularly.

E) Note your progress and reward yourself for reaching various milestones.

I don't read forums much, I've only read a few forums and posted in three. But I just clicked on this, expecting to see a rich discussion, and read this strange response to OP's question, i.e. how to create beautiful positions, and what to read...and read this response to read Nunn's book on the 6. Bg5 Najdorf! What an interesting response! to PDVe, do you recommend this book because this book took you from 1550 to 1800, as the OP desires? Do you recommend this book because it trains the reader in postional knowledge? And, how do you know the Op is "reading the wrong books"? Op doesn't say anyting about what he reads, only that he has these books, and he does tactics problems. 

I hesitate to recommend books to reach a certain ELO, because I don't think reading book can promise to do that, and because I am nowhere near any of those ratings, I'm a beginner. 

However, I think that playing 'beautiful chess' is a beautiful goal, and I think you should start to study games of beautiful chess. I think of people like Alekhine, Tal, Kasparov, Bronstein, your own countryman Gligoric, Capablanca. etc. Some of these are thought of as "postional" and some as "tactical" but I think these distinctions are erroneous. Beautiful chess is beautiful. and Capa is beautiful no less than Tal.

I think its important to learn what beautiful games look like, and what beautiful game makers think about when they're playing. Bronstein and Tal are notable in this department; they write beautifully about their thoughts as they play beautiful chess. 

I note that you ask about reaching ''chess position knowledge". Karpov is pretty well thoughts of as having an unerring sense of position, and he is said to be able to accurately read any position. So you might also seek out Karpov's games, and also Kramnik who has a deep understanding of position. 

But most importantly, don't seek a number, don't seek 1800! Seek to copy and create beautiful chess. I think that will get you closer to your goal, and good luck. 

I wrote my reply before I read what SmyslovFan wrote. SmyslovFan has excellent advice. I think you should take his advice and mine together. The self-assessment of PARTICULAR weaknesses, and strengthening those is excellent advice. And find a beautiful chess player to emulate. Is is Tal? Is it Karpov? Is it Smyslov? Is it Kramnik? Is is Fischer? Is it Judith Polgar? Do you know? Find out what you mean by beatiful chess, find your muse. 

SmyslovFan, Radioarno - I don't think pdve's book suggestion was meant to be taken seriously!

Out of those, the answer is Judith Polgar, right? 

No, the answer is none :)

I think Judit Polgar is nice looking:

She's quite petite though, that Queen she's holding is from a standard tournament set

Back to the topic - Jaksha, can you elaborate on what you mean by "not being able to build the position on the board" please ?

Hello everyone...

I didn't expect so much comment's...

Thanks for advices...

1. pdve, every book is good book :D

2. SmyslovFan, do you think that I should take premium and start practice on chess.com? I have many weaknesses, endgame I play bad, and I dont know how to create constructive position.

3. radioarno,  Yugoslav atack (in dragon sicilian) are one of my favorite, and Gligoric ofc :)

4. IpswichMatt, macer75 everyone of them :D

5. Kombaiyashii, I am one of leaders in lokal chess club. My chess trainer cant learn me anything new, he learned me from begining and now I am much better than him. Maybe if I found new one somewhere else...

okay, Jaksha, by your answer I get more understanding of you. You really don't know what to do to get better, and you lack stronger players around you to show you. You write "I have many weaknesses, endgame I play bad, I don't know how to create constructive position". So you obviously don't really know what your weaknesses are, because you say you are only weaknesses; you don't know your strengths, you don't know why you beat everyone at your local chess club. I think a serious effort to analyze your games, and I mean SERIOUS, look at every game right afterward and spend lots of time on your game, analyze every move, look at every variation, understand the positional and tactical elements in every position... if you have no one in your club who is stronger than you check every move with computer...but FIND a STRONGER club...if you have to travel a bit once a week to a city that has a stronger club do it...play online correspondence chess, very very slowly, choose every move to 'create constructive positions' ...take hours for a move. And since you want to 'create constructive positions'... analyze your OTB games with that in mind for every move...did it create the most constructive position. and if not, which move would create a stronger position?

You obviously have strengths. You're not aware of what they are. Remember, Botvinnik's school was based mostly on self-analysis of games. The students met only a couple of times each year. The main part of the schooling was analyzing their games. It is the self analysis, both of the strengths and the weaknesses, that has a chance to lead you higher, I believe.

As for endgame...it is learnable. SmyslovFan's comment here was very important.  Get a good endgame book. Silman's is considered good, but it may not be specific enough for you. but then again, it may be perfect, because it will help you know what you know and what you don't know yet in endgame knowledge.   Speaking of SmyslovFan, why not study Smyslov's games? Smyslov was known for his endgame excellence, but then again, most top supergrandmasters would be good to study. Kramnik, Carlsen, Capablanca, Smyslov, these come to my mind. If you become aware of your particular endgame weaknesses, work on those particluar weaknesses. Remember, Fischer worked for a year on a particular type of endgame, even though he knew he would likely never encounter it in play, becuase studying it gave a deeper understanding of how the pieces operate and interact. 

Good luck in reaching your goal. And play beautiful chess. :)