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Subject: Re: Nice tactical shot.

Author: Steve Timson

Date: 00:46:36 01/25/02

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>obviously that is evaluation function. NOT singular extensions.
>your evaluation is too optimistic about 3 pawns vs piece.

While seeing the solution early is driven by 'faulty' eval, singular extensions
are definitely helping to see it much faster than the non-SE version.

SE version 1st switches to the solution at ply 8 after 2.2 seconds.  By the 10th
ply, and 19 seconds it has a +3.03 score.

Non SE version 1st switches to the solution at ply 10 after 10 seconds.  It
takes it until 15 ply and 167 seconds to see the +3.03 score and pv (that is
seen at 10 ply with SE).

So the shallow solution is seen in 1/5 the time with SE and the deeper solution
is seen in 1/8 the time.  Not that either of them are solutions for the right
reason.

So SE is helping chester to apply its faulty eval faster... :)



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