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Subject: Re: "A computer position"[McShane-Steffansson,Reykjavik 2000]

Author: Dann Corbit

Date: 14:57:52 04/26/00

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On April 26, 2000 at 17:54:47, Gareth McCaughan wrote:

>On April 26, 2000 at 14:15:54, Ernst Walet wrote:
>
>>>which is found by Shredder4 in 23 seconds at 7 ply on a PIII-450.
>>
>>Futhermore the move is found by F6a at 8 ply at 9 seconds and by H7.32 at 1 ply
>>at 0 seconds.
>
>I think the last of these may be misleading. Crafty, on my machine,
>likes Rxf5 instantly ("at 0 seconds"), but then switches to Rfd1
>a little later, and only at 50 seconds and 8 ply does it decide that
>Rxf5 is best after all. It seems unlikely to me that Hiarcs, "at 1 ply",
>has really seen enough of what will follow to say that it's "found"
>the move. Even if it doesn't prefer other moves when it thinks for
>longer.

Indeed, a "feature" of Hiarcs is that it stops looking instantly when processing
EPD records if a bm is listed and that move is chosen at any point for any
reason.

Take the 'bm' off and run it again and you may get completely different results.




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