In my (profoundly limited) view, Opening theory seems to be an ever growing body of knowledge, pushed by grandmasters, to find the strongest continuation in various lines. In theory, therefore, if a player deviates from opening theory, they are playing 'inferior' moves. The onus is therefore on you to PROVE that the moves are inferior. But bear in mind that grandmasters are aiming for perfection, playing with technique that is beyond a player like me. When I subject my games to computer analysis, they are bursting with errors, which would probably negate any advantage I had got from 'proper' openings. An example:
I have faced this opening on numerous occasions. The reply 2...Qf6 is not in the master opening database, and you can see why (early Queen development, blocking in the Knight, behind in development etc). It is 'Bad'. Yet, I have always struggled against it - during a game from this, the middlegame turns in to a typical battle that negates the opening, but only because I play innacurately.
Chess is hard my friend.
ED.
What I mean is, they know why the plausible deviations on move 7 don't work. They know the why behind all moves in general. In case of facing one of the implausible deviations they simply continue the general idea of the opening for a great game. If the deviations are just downright bad, then they roll you up in under 20 moves :)
. Seriously though, i am a student of finance and i find chess to be a phenomenal challenge. I enjoy it and find it quite intriguing, yet I feel that because i started so late, i will never be able to "master" the art of truly understanding all the theory behind it or at least enough of it to make me a half decent player. If you are telling me that creativity doesn't play as much a role as having seen half the moves, then i'll never catch up. I'm not sure i'm crazy about that because I like to think that my intuition, creativity and vision have a place to compete with someone who is about memorizing the moves.
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I am fairly new at chess and tend to become a student of what i get involved in and have what might be a naive question. I'm reading about openings, strategy, endgames etc and would like to know at which point during the match does theory become obsolete? It strikes me that you could know every opening, yet because your opponent may surprise you with a move, you could end up with a combination that you have not seen (unless of course you are capable of memorizing every possible move which seems highly unlikely) and therefore, your "plan or system" has to be thrown out the window and your creativity and your ability to anticipate becomes more critical than any theoretical strategy that you have studied.
Any comments would be appreciated.