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Subject: Re: Is the crafty approach to pondering the right one?+suggestion

Author: Mike S.

Date: 12:07:17 05/24/00

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On May 24, 2000 at 14:16:07, blass uri wrote:
>(...)
>I agree that if the human opponent is using a long time for one move(for example
>more than 10 minutes at tournament time control) it may be better to stop
>analyzing the reply for the expected move and start analyzing the second best
>move and after it the reply for the second best move but I do not think that
>this idea is very important.
>
>Another possible idea is if you discover by analyzing the predicted move that
>the predicted move may be a mistake(an extreme example is if the evaluation is
>mate foryourself after the predicted move) there is no point in continuing to
>analyze the predicted move and it is better to start to analyze a different
>move.

From the viewpoint of an user, the latter seems to be a good idea and especially
attractive , when the program furthermore discovers during the pondering, that
it's mate whatever move the opponent will make. It could then "suddenly"
announce a mate out of the permanent brain!

I remember that the idea of a "multiple" pondering was already used once in a
board computer, the SciSys (or Saitek) Turbo 16K, and also in the 24K I think.
Maybe this could be decided by the program according to the evaluation
differences between the best, 2nd best and 3rd best expected moves: For example
at tournament setting, if the difference is smaller than +- 0.2 pawns, it could
use the first minute for the 1st move, then switch to the 2nd best etc. Of
course I do not know which values and numbers of moves would be the best
compromise for this.

Regards,
M.Scheidl



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