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Subject: Re: Crafty's progress from 15.20 to 17.11

Author: Steffen Jakob

Date: 06:15:04 01/11/01

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On January 11, 2001 at 09:07:15, Jouni Uski wrote:

>B f F - R a n g l i s t e   A m a t e u r e:
>
>Blitz/Aktivschach
>insgesamt > 31.000 Partien
>
>(Cel.525; Book: Noomen-Select, SEE, Nunn1/2-Test)
>
>Program                          Elo    +   -   Games
>
>Crafty 17.11                   : 2488   17  14  1514
>Crafty 16.6                    : 2466   30  38   332
>Crafty 17.13                   : 2456   35  41   257
>Crafty 17.14                   : 2445   41  33   286
>Crafty 16.15                   : 2437   36  35   289
>Crafty 15.20                   : 2423   58  50   130
>
>Question: Has there been real/significant progress after this statistics?!

About one year ago I introduced a sophisticated queen mobility eval term in
Hossa. This term is very expensive. Now I see games from time to time where
Hossa captures the opponents queen even in the middle of the board or gives away
a pawn to keep the opponents queen unmobile for a long time. On the other hand
Hossa got slower and overlooks tactical shots more often than before that
change. I didn't notice any significant rating change when I added this feature.
Would you say that I made any progress here? ;-)

Best wishes,
Steffen.



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