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Subject: Re: Chessmaster 10th Edition demo (technalities)

Author: Johan de Koning

Date: 17:04:24 07/21/04

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On July 21, 2004 at 01:09:30, John Merlino wrote:

>On July 20, 2004 at 20:25:22, Johan de Koning wrote:
>
>>On July 20, 2004 at 07:28:17, Steve Maughan wrote:
>>
>>>Johan,
>>>
>>>>Feel happy about a free update instead.
>>>
>>>Thanks for the clarification.  Out of interest can you say what are the areas of
>>>impovement (or at least the areas you have changed) in the latest engine
>>>compared to the one in CM9k?
>>
>>Slightly increased mobility weigth.
>>Much increased R against K attack.
>>Some minor changes for more accurate positional play.
>>Selectivity scheme changed quite a bit
>>(now default SS=10, probably 12...14 will be strong in comp-comp-etition)
>>Time usage more aggressive.
>>Version number 0.10 higher. :-)
>>
>>... Johan
>
>I noticed the X/Y delta is much different (smaller) in TK 3.33, with the program
>reaching higher X values much faster. Interesting....
>
>I'm also excited about the "more aggressive" time usage.
>
>I suspect that Kurt Utzinger (et al) will be displeased that King Safety hasn't
>been increased, given that his personalities all have values > 150. But, no
>matter....

Actually it has.
Summarized as R against K above, open Rook files and advanced Pawns
now have their own code with pretty large bonuses. So using KS>=150
might be too much of a good thing. Or perhaps not, since many people
like over-aggressive comp-comp games.

... Johan



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