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Subject: Re: Avoid move Nxf3 test position

Author: Robert Hyatt

Date: 18:45:46 12/28/00

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On December 28, 2000 at 18:40:30, Howard Exner wrote:

>On December 27, 2000 at 22:28:57, Robert Hyatt wrote:
>
>>Strange.  I tried this and I _never_ get Nxf3 at all. I get h3 at early
>>plies, then Kf6, until it changes to Kf5 for good...  Interesting problem
>>of course.  And I have seen this happen to both crafty and its opponents
>>from time to time...
>
>Even though there are 8 pieces on the board it looks like the table base
>endings come into play. Vincent's program discovers a mate in 30 or something.
>Century 3 plays Kf5 at 8:42 on an Athlon 900.
>
>Most likely all programs will eventually incorporate the endgame table bases.
>Otherwise good and solid middlegame play may not be rewarded on those occasions
>were endgame bases detect the outcome of a game long before it's non-base
>counterpart.


I ran this on a machine with no tablebases of any kind...

Crafty never considers Nxf3...



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