Smyslov_Fan wrote on 04/23/14 at 02:35:33:
I recently read an interesting academic article that shows there is a strong correlation between chess mastery and the ability to memorize openings...
Quote:...From a large chess database, we analyzed 76,562 games played in 2008 by individuals ranging from Class B players (average players) to Masters to measure the extent to which players deviate from previously known initial sequences of moves (“openings”). Substantial differences were found in the number of moves known by players of different skill levels, with more expert players knowing more moves...
So a player that independently comes up with a theoretical move over-the-board is credited for having "memorize(d) openings" (your words). This seems highly flawed to me.
Clearly Masters are going to have memorized many opening moves (to use the terminology from the abstract). Masters will probably have more chunks in their memory relating to openings than amateurs will. Clearly, Masters can solve opening problems better than non-Masters.
But this is all true of "endgame moves," chunks relating to the middlegame, etc. A study like this seems absolutely irrelevant in determining which phase of the game one should study, or which phase of the game more closely correlates to overall strength of play, as it doesn't address the obvious question: is the difference in number of memorized opening moves between Masters and amateurs significantly greater or smaller than the difference in number of "endgame moves" memorized, etc?
In my opinion, Masters (and this is all especially true the higher up the Master chain you go) are much better than amateurs because (in no particular order):
1. They make better decisions,
2. They sense which decisions in a game are critical and devote more of their energy at those times,
3. use prophylactic thinking,
4. blunder far less,
5. calculate better (more efficiently, faster, and further),
6. see the thread in a position (cut through the clutter/crap to see the truly important features; I'm often surprised at the weird crap weaker players obsess with during a game. Your king is getting mated and you're worried about having a bad bishop??!?),
7. are less dogmatic,
8. are much better at maneuvering/playing strategic chess, and
9. formulate long-reaching plans that can actually come about on the board.
I'm sure that we could all think of many more.
All that study really showed, to me, is that Masters are making better opening decisions than amateurs. Whoop-dee-doo. It hasn't shown that it's a significantly higher percentage of better decisions than middlegame or endgame ones, or whether the decisions are a result of memorized knowledge at all in the first place! Which seems to be the crux of the implied argument that you are making: that amateurs should memorize more opening theory because that is a significant source of Masters' chess strength.
The article is interesting though, and it would be nice if similar work could be done on theoretical endings and the results compared.