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Subject: Re: New SSDF-list

Author: Robert Hyatt

Date: 06:44:35 02/24/98

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On February 24, 1998 at 03:51:59, Peter Herttrich wrote:

>On February 23, 1998 at 14:58:09, Moritz Berger wrote:
>
>>On February 23, 1998 at 14:45:49, Thorsten Czub wrote:
>>>The problem is : WHEN fritz5 is that strong, why didn't we found out
>>>about ?
>>>Why didn't you tell me before. Or Peter Schreiner. Or any other guy
>>>HAVING FRITZ at home ?
>>
>>
>>I told you a long time ago that Fritz 4 was strong and belonged among
>>the top programs.
>
>Here i have other experience and not only i.
>Fritz4 has played about 20 Games against Crafty 14.5-14.10.
>And has won NO ONE GAME. The result was about 70% for crafty.
>All others are draws. Environment: K6/200 with 48MByte Hash for
>Fritz, K6/200 48MByte Hash for crafty (of course two machines).
>And under 40/120 tournament condition!
>I was really frustrated about F4, it plays so much junk.
>Thank god i have payed only about $30 (50.-Deutsche Mark), it was the
>special edition with the 4.01 engine.
>Dont tell me F4 is strong!

Again, I suggest not using this with too much confidence.  I saw similar
results against Fritz 5.  And I have no explanation as to why this was
true (don't know if it is still true now.)  But testing against a single
program is not a good idea.  Fritz and Crafty are probably reasonable
similar in search techniques, although I can't guess about his
evaluation.

But if the most important part of two programs is the same, then other
minor differences can add up to significant winning/losing margins even
though the two programs might be almost identical in skill when playing
human or other program opponents.

This can be quite maddening.  I remember the first example I saw where
the Deep Thought guys thought their singular extensions were worth
almost
200 rating points based on comparing DT/with to DT/without.  That tends
to
exaggerate small differences.  I personally like the way F5 plays.  It
seems
to like active positions and plays aggressive moves.  Whether it is fast
and
smart or fast and dumb, it is *certainly* fast and "good."  :)




>If i remember right F4 played similar in Jakarta.
>
>cheerio
>peter


actually Jakarta was a debacle, but Frans showed up with a new version
that played about like Crafty played in Paris.  Things that look good in
testing can fail miserably against decent competition (different
competition).

Certainly happened to me...



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