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Subject: Re: Diep beats Crafty!

Author: Peter Berger

Date: 03:22:15 07/08/04

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On July 07, 2004 at 22:56:46, Robert Hyatt wrote:

>On July 07, 2004 at 20:55:10, Mike Byrne wrote:
>
>>On July 07, 2004 at 11:51:44, Gian-Carlo Pascutto wrote:
>>
>>>...in the blitz tournament :)
>>>
>>>Couldn't get a PGN yet.
>>>
>>>--
>>>GCP
>>
>>Whew - I thought you meant at long time controls.  We all know anything cna
>>happen in Blitz, just ask Topalov.
>>
>>;>)
>
>
>I have not looked at the games.  But Peter and I discussed this and we chose to
>use my wide-open ICC book for these games to avoid giving away anything about
>his tournament preparation.
>
>I knew that we would bust one or more openings.  The one thing I forgot is that
>I cleverly copied my binary books from my xeon to the opteron.  Doesn't work.
>90% of my book was unusable leading to some bizarre opening choices.  I did that
>late at night and just forgot that even though the opteron and xeon are both
>little-endian, the opteron has a longer struct padding (to 8 bytes rather than 4
>bytes) which kills my binary book copy.
>
>Stupid.  Stupid.  Stupid.
>
>I should have remembered.  :(

That's a wrong summary of the Crafty-Diep game in the blitz tournament IMHO.
Crafty played a good line out of its default (and maybe broken) book and reached
a nice advantage against Diep's Ben-Oni . But Diep played a very cute king
attack that met Crafty out of the blue.

Unfortunately engine Diep has an internal parameter to get excited and start
celebrating once it beats Crafty, so that it wasn't able to concentrate properly
on the rest of the games.

Actually there were no bad booklines for Crafty in the blitz tournament at all,
as far as I can tell. Most interesting game was probably the final round against
SOS where in the final position SOS could have won in a complicated matter by
sacrifying rook and bishop to get its pawns running, but it didn't have enough
time to find it and so went for the repetition.

Crafty couldn't save the games, but they can be reconstructed out of the
logfiles later.

The games against Shredder and Junior were quite interesting draws and against
Junior Crafty at a point came quite close to winning, but it wasn't enough as
Shredder performed too well.

But one can't and shouldn't complain about finishing 2nd I'd say :), especially
if the program has to be operated in textmode ..

Peter





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