Author: Harald Faber
Date: 01:13:57 03/24/99
Go up one level in this thread
On March 23, 1999 at 15:35:59, Dann Corbit wrote:
>I see a few problems with current opening books -- not for people but for
>computers only.
>
>Quite likely, a GM will play an opening for strategic reasons. He may even toss
>a piece to gain mobility or something of that nature. For a human GM, such a
>choice is sound. For computers, most of the time it will not be sound. The
>reason is that the computers do not see 20 moves down the road at all. So the
>sacrifice just reduces their ability to take more tactical snacks on the way to
>the accidental giant meal called checkmate. When the computer falls out of
>book, it is a poor, bewildered bunny. It has the right position on the board,
>but the payoff is so distant, it does not know how to benefit.
>
>So there are proven sound openings that are simply not good for computers.
>We'll call them [TOODEEPS] {or maybe [TOODIEPS] after Vincent. ;-)}
>
>There are also buggy openings with deeply hidden tactical snares that people do
>not tend to see. Computers are always looking for the poor baby sheep that
>wanders from the herd just one false step. We'll call them [TRAPDOORS].
>
>So we have these trap doors and too deep openings collected into our chess
>opening books. We are skipping happily along in our opening book and smiling
>about all the time we are saving, and then a door gets slammed in our face.
>
>So what to do about it?
>First we have to identify them.
Can't that be done by Rebels ANALYZE BOOK?
>Once we found them, what do we do about it?
>One thing we could do is just remove them.
Why? You can profit from it by ADDING maybe some more moves (the refutation) for
the other side or changing the move preference.
E.g. if the move no. 12...Nh7 is found to be dubious and the refutation 13.Kh1!!
makes 12...Nh7 losing, then mark the 12...Nh7 as passive, e.g. 12...h7??, but
add 13.Kh1!!
Is it that simple as I wrote?
It is just very time spending...
>Opinions? Refutations? Flabberghasted, shrieks of annoyance?
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.