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Subject: Re: what type of result is significant in 100 game match

Author: Uri Blass

Date: 04:07:49 02/19/06

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On February 19, 2006 at 06:43:03, Sandro Necchi wrote:

<snipped>
>What the opening book makers do is to refine the theory as there are several
>mistakes still and also to select opening that the engine can understand and
>play strongly enough...

This can be a starting point but from this point you can decide not to delete
moves from the book but only to add moves to the book in order to score 100%
against weaker opponents when the moves that you add are good moves.

<snipped>
>>As far as I know it is not done but my opinion is that programs can easily get
>>more than 100 elo improvement by a better book and you only need enough computer
>>time to test.
>
>No, this type of improvement is not possible if not for a very selected opening
>repertoir which cannot be offered for commercial purposes as too restricted...

If restricted choice of opening is a problem you may be right.
I do not see it as a problem because I do not care about book and for people who
care about book it is possible to use both restricted book and more wide book.

<snipped>
>
>Do not forget that to find novelties that work against all programs is not easy
>and needs a huge amount of work...

I agree that you need a lot of work.

One way that can only help the engine is simply to play a lot of games at 120/40
for Shredder(after you already have a book) when shredder has significantly
faster hardware than the ssdf hardware and the opponent use the ssdf hardware
and simply record the wins in the book.

There is good chance that the opponent is going to play the same game in the
ssdf games and even if it does not play the same move some moves after it is out
of book you get time advantage and a good chance to win.

Uri



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