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Subject: Re: Opening book match vd Wiel - Rebel (to Jeroen Noomen)

Author: Peter Kasinski

Date: 13:15:31 01/04/01

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On January 04, 2001 at 15:15:55, Jeroen Noomen wrote:

>On January 04, 2001 at 13:15:52, Ernst Walet wrote:
>
>Hi Ernst,
>
>Yes, I prepared a lot against Van der Wiel, but today's line I didn't expect....
>This is not such a problem, as Rebel uses EOC and I think it got a decent
>position after the opening.
>
>The real problem in this game was, to evaluate the pin on Knight a2. White had a
>good position, but failed to do something at its biggest problem: To activate
>the rook on a1 and the knight on a2. This hasn't got to do with 'being out of
>book by move 3'.
>


I agree. The position after move 21 is probably better for White despite it
having played "wihtout a book". A series of pintless moves by White queen
allowed Black to _laboriously_ set up the exchange of bishops, and thus get rid
of its only real liability. Rebel clearly preferred to exchange bishops rather
than queens in this position - which I think may be related to an its overly
optimistic evaluation of Black king's somewhat exposed position. All in all -
middlegame eval, king safety - but opening? I don't think so.

PK




>As I explained earlier, it is impossible to cover all lines like this. If a
>program fails to take advantage of a move like 3 ... a6?! this is because it has
>not enough knowledge how to punish this. People often blame the opening book,
>but I think it has to do with pure chess knowledge. Chess programs are not able
>yet to punish anti computer strategies.
>
>Next time when I prepare 3 ... a6, John will play 3 ... b6, or 3... h6, or 3 ...
>e6 and even when I have those moves in book, he will be able to throw Rebel out
>of book one move later.
>
>Jeroen
>
>
>>Hi Jeroen, did you prepare anything against vd Wiel's opening?  I believe 3...
>>a6 has been played before at AEgon 97?
>>
>>Ernst.



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