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Subject: Re: WHY does Gandalf reject Qxg7 ?? (was: Position that

Author: fca

Date: 04:28:29 08/25/98

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On August 23, 1998 at 19:44:09, Thorsten Czub wrote:

>On August 23, 1998 at 16:24:37, Ilya P. Kozachenko wrote:

>>K6-233:
>>F5 - Qxe7 after 1 hour and 14th ply
>>Virtual Chess  II - Qxe7 after 1 hour and  266.000.000 nodes seen
>>Hiarcs -  not found after 1 hour also...

For "Qxe7" I take it was meant "Qxg7" ???

N98, CG3/5, R9, CM5xxx, J in F, even given much more time, also fail to avoid
grabbing that loose pawn.

>>>On my P200MMX 64MB Gandalf 3.0 is playing Qe2 af 7 min. 32. sec.
>>>with the score 0.30 for white!

But the question is:  WHY does it reject Qxg7.

i.e. given say 1 hr/move, playing for both sides, what line and evaluations (for
each move) does it produce after Qxg7 is played ?

>>Is Gandalf the best PC Chess Program ? :)

>please no smiley ! Don't underestimate Gandalf.

To estimate Gandalf we need the answer to the question.

If the answer suggests it is simply because open lines to the castled king are
given a big no-no in the static evaluation, then I may be able to produce
positions where Gandalf **should** grab a pawn (or similar) but does not do so.

Please do reply!

Kind regards

fca



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