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Subject: Cabablilities of a SEE

Author: Tim Foden

Date: 04:03:14 10/04/01


Hi All,

I decided that I would add a 2nd SEE to GLC to check whether GLC's SEE was
working.  I actually ported GCP's Sjeng SEE (that was posted to the forum a
while ago).

Both SEE routines now agree in most curcumstances, but one's like the following
have cropped up (where they disagree):

[D]5rk1/1pp2R1p/p1pb4/6q1/3P1p2/2P4r/PP1BQ1P1/5RKN w - - 2 0

This can be evaluated in 2 ways...

(1) BxP (+1000) BxB (-3500) R1xB (+3500) QxR (-5500) RxQ (+10000) RxR (-5500)
.........+1000.......-2500........+1000.......-4500........+5500...........0

>>> value = 0

(2) BxP (+1000) BxB (-3500) R7xB (+3500) RxR (-5500) RxR (+5500) QxR (-5500)
.........+1000.......-2500........+1000.......-4500.......+1000.......-4500

>>> value = -2500

So... on to the questions:

a) Does anyone's SEE do anything intelligent in these cases?

b) Is one of these right, and the other wrong?  If so, which one?

c) Do we actually care, as long as the SEE works in the majority of cases?

Cheers, Tim.



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