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Subject: Re: A crippled TIGER is still much better than a full strength CRAFTY :)

Author: Heiko Mikala

Date: 15:39:40 11/01/99

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Hi Enrique!

On November 01, 1999 at 12:32:35, Enrique Irazoqui wrote:



First of all, since this is a heated discussion and I burnt my mouth once
already, I'd like to point out that this post is not meant to attack anybody,
just to comment on an interesting part of the discussion.
;-)


>I checked for differences in Crafty as a winboard engine and as a native engine
>for Fritz, and I could not detect any, except for winboard running about 2%
>faster in NPS than Fritz. I checked this with games and test positions: same
>moves, same PVs. Below I copy some.

I think the much more important question is, how does Fritz influence Crafties
behaviour in between the moves? I'm sure, that there is no difference in
analysing fixed positions, but what happens during a game?

My own observation is, that Crafty as a winboard engine, run through the
winboard adapter in Fritz, plays as much as 100 elo points weaker than the same
Crafty version as a "native" Fritz engine. I know that you used the native
version, but do we know, if there is a difference between the native Fritz
engine and the real Crafty, running as Winboard engine in Winboard? What, if
there is again another 100 or 50 points difference?

I don't know, if there is a difference, but there happened one thing today that
made me wonder again: during the last months I have run a lot of blitz
tournaments on my computer, all g/5, all using Fritz as the interface. In my
rating list, generated by Fritz, which contains more than 2200 games by now,
Crafty (Fritz native engine) and Little Goliath 2000a are roughly equal in
strength. Today I had a look Frank Quisinkys homepage again, who, as you surely
know, runs large tournaments using Winboard. But in his latest rating list (on
the news ticker page), which also contains about 2000 games IIRC, Crafty
(Winboard engine) is about 100 points ahead of Little Goliath...

I don't know, how to answer this question without investing a lot of time, but
at the moment I'm running a g/60 tournament on two computers and maybe I'll
enter Crafty as a real Winboard version after I have finished the current
tournament. This would of course not answer the question, if there is a
difference between the real Crafty and the Fritz engine, but it could tell us a
little bit about how strong Crafty is compared to the commercials. It would have
to play against F6, H7.32, CM6000, Rebel Century, MChess Pro and Genius 5.
Didn't you do something like this last year, including Crafty?


Greetings,

Heiko.



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