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Subject: Whats the expert opinion?

Author: Soren Riis

Date: 08:50:42 03/10/00


I am a mathematician on IM level who only have
done armature work (like testing evaluation
functions etc) in chess programming.

I would like to hear the expert opinion on the
following questions:

It is well known that programs which have the same
strength at one time control, might have different
strengths at different time controls. Or equivalently
that two programs relative strength might depend on
the speed of the hardware.

Q1: What is factors contribute to this?

Humans players, when compared to programs plays relatively
better with long time controls. While a program increase
its strength by typically 70 rating points when the speed is
doubled, the human (for fast time controls like 5 min) rather
seem to gain 200 rating points when the speed, so to speak, is
doubled (i.e. when the available time is doubled).
This suggest that with slow speed computers also gain much more
than 70 rating points. Is this correct?

Q2: Does very knowledge strong program gain more playing strength
relative to less knowledge strong programs (on slow processors)?

On fast processors knowledge is sometimes even a disadvantage.

Q3: How does knowledge fare as a function of speed?

The questions are a bit vague, but I would like to hear the
expert opinions. Any thoughts?





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