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Subject: Re: Arasan 8.0

Author: Tom Likens

Date: 14:54:27 08/22/04

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On August 22, 2004 at 17:48:44, Jon Dart wrote:

>Arasan 8.0 is available from http://www.arasanchess.org.
>
>Changes in Arasan 8.0:
> 1) Extended futility pruning is implemented now. Futility pruning and
>    razoring can be combined.
> 2) Passed pawns are scored higher.
> 3) "Capture" extension is now disabled by default.
> 4) Fixed some bugs in king-pawn hash table code
> 5) Minor changes to hash probe code.
> 6) Default tablebases cache size increased, changes to tablebase probe
>    logic. Generally this version does fewer probes.
> 7) New egtb code from Eugene Nalimov & Andrew Kadatch.
> 8) Significant changes to evaluation. Evaluation is simpler and
>    faster. A small evaluation cache is used.
> 9) Various speed enhancements, in move generator and elsewhere.
> 10) Some fixes to 50-move draw handling.
> 11) "makebook" program can now filter moves so that only moves
>     occurring with a minimum frequency will be included. New book
>     uses minimum frequency of 6 from a large PGN game collection.
> 12) a few minor GUI fixes.
>
>--Jon

Jon,

Any idea how much stronger version 8.0 is compared to the previous
version?

regards,
--tom



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