Well, I guess it's the same general skills at every level, and the higher you go, the better the guys are. I'm not even sure there are different skills at lower level, it's simply that it's easier to list the basic requirements to reach 1600, as there are less numerous :-)
size of pattern banks calculation skills (includes visualization and speed) technical expertise (knowledge of openings, various middle games including material imbalance and pawn structures and technique in the endgame) position evaluation decision process guidelines (how decisions are influenced by the situation on the board, the opponent, your own condition, etc.) stamina and ability to manage nervous energy during games
Basically whatever your rating, there are good chances the guy with "your rating +200" is superior to you in most (or all) of these categories. The first three categories may be more relevant though.
Indeed.
I think we might be able to take it a little further than that. For instance, a player rated 1200 has probably done little to no opening training, but a Grandmaster has done a ton. That same 1200 player perhaps has never done any targeted end game training, but certainly a National Master has done plenty.
To return to my analogy that I gave earlier about martial arts, I guess what I'm wondering is whether or not a "black belt in chess" course could be devised.
As I also mentioned earlier, I have a copy of Vol 1 of Lev Alburt's Comprehensive Chess Course. In the introduction, he makes a curious statement that really stuck out to me:
Over a period of four to five years, attentive students could expect to reach the 2200-level with a weekly input of a single two-hours lesson, buttressed by four hours of homework and another two to three hours of practical play.
As we both know, that certainly flies in the face of what many tend to believe, to the point that even I am not sure about it. But it is interesting.
Somewhere else in the book I remember him making another statement that caught my attention. He's talking about end games and he says that many chess players spend their time learning over a thousand different positions, when in fact this is unnecessary. Instead, he says, you really just need to know 50 key positions.
That really got me to thinking about the way that people go about learning chess. How much unnecessary stuff does the average chess player do that gives them no actual benefit in terms of improved playing ability? If we all knew EXACTLY what to do in terms of streamlining our study, how far could we go and in what amount of time?
The average FIDE rating is around 1800-1900. Most FIDE-rated players are somewhere in the 1700-2100 range. With your chess history (learned the rules as a kid, did some reading as a mid-teen) I'm sure you have the potential to become at least an average player. You definitely have an advantage over adults that are pure beginners.
What does it take to become better than the average?
GM Andrew Soltis wrote a book, "What It Takes to Become a Chess Master", on this very topic.