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Subject: Re: Latest Carfty Se happenings

Author: Tony Hedlund

Date: 13:24:05 10/07/04

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On October 07, 2004 at 11:17:45, Robert Hyatt wrote:

>On October 07, 2004 at 06:51:17, Tony Hedlund wrote:
>
>>>>>19.17   changes to pawn evaluation to limit positional scores that could get a bit out of sane boundaries in some positions.
>>
>>>I don't think the pawn scores really affect "normal games" much at all, they
>>>affected games with a severe imbalance in pawn structure.  IE one side had 6
>>>isolated pawns so that giving a 7th would produce way too big an additional
>>>positional score, etc...  Real games don't see that very often...;
>>
>>I've seen in some games against Deep Junior 8 that Crafty seem to underestimate
>>the opponents passed pawns. Can it be so?
>>
>>Tony
>
>
>That is possible.  But passed pawn scoring has not changed.  I have a bunch of
>games to go over when I have time, perhaps I will notice some sort of trend.
>One has to be _very_ careful here since a passed pawn is not a granite-solid
>thing, it can be lost very quickly and if you give up something to establish the
>pawn, only to see it evaporate, it can be a killer mistake...
>
>If you have specific games in mind, feel free to point them out, or if you have
>posted them let me know and I'll look...

IIRC two of this three games Crafty could have saved:

http://www.talkchess.com/forums/1/message.html?390141

Tony



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