I think Yusupov's book will help you a lot, as it points out what is most useful to learn for beginners (there's so much around !)
Besides, I would recommend you check Heisman's columns on ChessCafe, which gives lots of useful advice on chess thinking and practical play.
My blitz rating is no better than when I started playing chess live some time ago, yet I feel like a stronger player now than I did then. My OTB friend still beats me as easily as he has beaten me before I began to study chess seriously.
As a musician and music teacher for many years, practice makes a person a better player. I find chess improvement to be a mystery. It's frustrating. I feel I have a well rounded approach to my chess studies, i.e., refinement of opening repertoire, end game studies, tactics...tactics...and more tactics.
In his book "Pandolfini's Chess Complete", Bruce Pandolfini believes one needs to aquire that "thousandth thing" before the next skill level is reached. What do you think? Please discuss. Thank you!
My current blitz rating (5 minute games) is 722. My highest was 811, and my average opponent is rated at 849. I've logged 157 games. My rating took a nose dive into the low 600's when I tinkered with different openings. It's steadily climbing back to the 800's since I returned to my main opening repertoire.
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Bruce Pandolfini and the quantum theory of chess improvement
What is the "quantum theory" of chess improvement?
Essentially, the quantum theory asserts that people seem to make periodic and sudden jumps in chess improvement, rather than continuous and fluid ones.
Chess education offers peaks and plateaus, and learning the game goes something like this: Let's say to climb to the next level of skill you must learn a thousand things. If you've learned 999 of those things, obviously you should be a much better player than when you knew nothing, but you may not necessarily show significant improvement yet. You still may not be able to implement certain acquired skills, so your overall play appears relatively the same.
But add that last piece of knowledge (the thousandth thing!) and suddenly, seemingly inexplicably, you jump to the next skill level.
You finally put it all together, and your ability has taken a quantum leap.
- NM Bruce Pandolfini