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Subject: Re: Crafty's Opening Play in WCCC 2004

Author: Robert Hyatt

Date: 12:35:31 07/15/04

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On July 14, 2004 at 03:49:34, Derek Paquette wrote:

>On July 13, 2004 at 17:12:39, Peter Berger wrote:
>
>>The question raised at CCC by some was actually if the opening book of Crafty
>>was "en par" with its opponents or if Crafty was "seriously crippled" by it.
>>Let's take a look.
>>
>>Crafty played the following opponents in the tournament: Junior, Shredder, Deep
>>Sjeng, ParSOS, Fritz, Falcon, Diep, IsiChess, Movei, The Crazy Bishop and
>>FIBChess.
>>
>>An excellent opening for white would leave it out of book with an edge in a
>>position it it supposed to understand, on the black site equality would be
>>acceptable given there is some imbalance to work on and it is no dead draw. A
>>fine opening is basically the same but slightly worse than excellent.
>>
>>This would mean excellent openings in games against Junior, Shredder, Fritz,
>>Movei, The Crazy Bishop and FIBChess. Fine openings against ParSOS and Deep
>>Sjeng.
>>
>>Openings against IsiChess and Diep did show some minor book problems - but both
>>games were won by Crafty anyway, so they are partly irrelevant for the
>>discussion.
>>
>>The opening against Falcon was fine too - we wanted to win this game, so Bb4 and
>>Nd4 were not acceptable as being too drawish. Bd6 looks strange for the
>>unaccustomed human eye, but it has been successfully introduced into grandmaster
>>play some years ago. But even if it would be argued that this game led to an
>>opening Crafty didn't understand too well ( although I wouldn't agree in this
>>case) ; the game was actually won too.
>>
>>Crafty lost games against Junior, Fritz and ParSOS and drew against Shredder and
>>Sjeng while winning the other games, which led to a dead tie with Fritz to the
>>4th place with 7.0/11 and equal Buchholz. No loss of points in the tournament
>>was due to a weakness in opening book, one might even slightly argue to the
>>contrary thinking about some of the games.
>>
>>While I am very much open to criticism, there is simply  no data to support it
>>in this case.
>>
>>Of course Crafty's openings didn't always follow the latest hype in grandmaster
>>chess and some mainlines were avoided. But this was done intentionally, mainly
>>because Crafty does have some problems with middlegame tactics and king safety
>>compaired to its main competitors and to emphazise its strength in endgame play.
>>Another reason was of course the limitted time for preparation for the event.
>>But I don't buy the argument that Crafty was in any way handicapped in this
>>tournament.
>>
>>Talking about "crippled by book" - it might be worth some time to look at
>>ParSOS's games ; that's what I would call a crippled book. Dead lost out of book
>>against Fritz, The Crazy Bishop and Junior; in many other games questionable
>>positions were reached. In the few games where it accidently reached reasonable
>>positions ( which unfortunately included the game against Crafty :) ) it was a
>>very strong contender - it just lost too many points on book.
>>
>>And whether taking part in the eternal Najdorf battle of book authors is
>>objectively really a good idea - looking at the results of the games in the
>>tournament it looks *much* more like a worse version of Russian roulette to me.
>>The only program that never seemed to have book problems was actually Junior.
>>
>>Credit where credit is due: several opening ideas for Crafty and this event were
>>burrowed from the recently released book "The Chess Advantage in Black and
>>White: Opening Moves of the Grandmasters" by IM Larry Kaufman (Random House
>>2004) after having been checked for usability and tactical oversights; else the
>>short preparation time would have not been sufficient. It's a very good book in
>>general IMHO and most probably the first book on openings co-authored by Junior,
>>Fritz and Hiarcs (which sometimes make it a very funny read :) ).
>>
>>Yours sincerely
>>Peter
>>
>>PS: Last message written in Ramat-Gan - will post it tonight at home :)
>
>
>related or perhaps non related to the openning book,
>list in order the most fear to the least worrisome of opponents you faced at
>WCCC2004

I don't believe we "feared" anyone.  We certainly had respect for the commercial
programs and their books...


>
>this perhaps because of hardware, book, the software itself,
>
>who were you most worried about and who weren't you,
>i am sure you worried about others more than some, it is only natural.



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