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Subject: Re: The Battle of the Generations: Fruit - Crafty

Author: Robert Hyatt

Date: 11:05:37 08/18/05

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On August 18, 2005 at 12:19:56, Will Singleton wrote:

>On August 18, 2005 at 10:55:08, Robert Hyatt wrote:
>
>>On August 18, 2005 at 09:19:24, Tord Romstad wrote:
>>
>>>On August 18, 2005 at 07:23:14, Steve Glanzfeld wrote:
>>>
>>>>Hongkong 1995: Fritz (black) wins against Deep Thought, after a bad move 13.O-O
>>>>castling in front of an open g-file.
>>>>
>>>>Reykjavik 2005: Again, Black has an (half-)open g-file, but castled himself
>>>>16...O-O(?).. can he succeed? It looks very dangerous for Black.
>>>
>>>It does.  The lack of king safety evaluation is one of Crafty's most serious
>>>weaknesses.  I very often see similar problems in my own tests against Crafty.
>>>
>>>Tord
>>
>>
>>That is interesting, because this past week, I have played 43 games (long time
>>control).  21 vs shredder, 5 vs prodeo, 10 vs junior, 1 vs gnuchess, 2 vs fruit,
>>and a couple I don't remember, all via my "crafty" ICC handle.  Care to guess
>>how many times crafty's king safety caused a problem?  Absolutely zero.  So I'm
>>not sure I buy the "very often" part of the above.  It certainly has some
>>king-safety issues, as does most programs I see playing.  But it is not a "very
>>often" issue.  Unless you force Crafty to play certain openings that it doesn't
>>normally like to play...
>
>
>After a long search, Shredder 7.04 would also castle kside:
>
>16...0-0 17.Rad1 c5 18.Qg3+ Qg7 19.Nc3 Qxg3 20.Bxg3 Rae8 21.Nd5 Re6 22.Nf6+ Kg7
>23.Bxe5 dxe5 24.Nd7 Rfe8 25.Bc4
>  ±  (0.72)   Depth: 15/39   00:09:51  250199kN


I am running a 10 minute per move search on this position now, to see what
Crafty thinks is the best to worst ordering with a very deep search to back this
up...

It might be that O-O is almost tactically forced...  more after I have the
complete set of 10 minute searches for each possible move in this position...



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