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Subject: Re: Rybka - How much Fruit is inside ?

Author: Vincent Diepeveen

Date: 10:51:44 12/12/05

Go up one level in this thread

On December 12, 2005 at 02:55:58, Gerd Isenberg wrote:

>On December 12, 2005 at 02:45:21, Daniel Mehrmannn wrote:
>>On December 12, 2005 at 02:31:26, Gerd Isenberg wrote:
>>>On December 11, 2005 at 20:59:08, Daniel Mehrmannn wrote:
>>>>I was long thinking if i really should post that and some people giving me
>>>>to not do that, but i think i must do that to feel better.
>>>hmm... i don't buy that Daniel. I don'i understand you reasoning - as an
>>>ex-member of the Greif team aka Nimzo clone. If you search for Vasik's post here
>>>in the past it is rather obvious that Rybka is a very own and original program.
>>>Also due to the rating boost, bitboards and file size Rybka does not look like a
>>>Of course he, as well as other commercial and amatuer authors had a look into
>>>fruit sources. Copying ideas is not cloning.
>>Hello Gerd,
>>i think you know that i had nothing to do with the greif sources or program. I
>>was tester and book author and since this days i have no contact to Michael.
>You told that story...
>>Again, i don't say Rybka is a clone.
>But you claim suspicions in a public forum for no reason as a concurrent
>programmer. Vas is ready to make a commercial business with Rybka.
>Can you imagine how much damage your post may wreak, to Vas's future business?

You are overreacting a bit here.

Let's put everything in perspective.

a) Rybka is an original engine and programmed by Vasik. Just already testing
with it and after some days i figured out, note i do not dissassemble at all as
that's illegal i just test a few positions at it and see how it reacts, i
figured out it is a very unique program. I was amazed that what i tried myself
in 1999 works so well for Rybka. He sure has tuned it very well!
An amazing achievement. Though positional weak, it kicks butt
strategical and tactical in a way we have not seen before!

b) Rybka is freeware engine, so until he releases 2.0, you will do near to no
financial damage in a forum with under 200 visitors or so, from which majority
is not gonna buy anything anyway, except for chessmaster and fritz.

c) what rybka is doing bitboards or 32 bits doesn't matter a shit. In fact i
feel bitboards only slows it down there at the moment as it requires a 64 bits
executable for bitboards.

d) gcc is indeed ugly compiler according to some, but it's pretty ok for
32 bits code, like Diep. In fact it's faster for diep than visual c++.

I hope you realize visual c++ 2005 compiles somehow do not work for me
at quad opteron with server enterprise at it, when i tested it. Those exes
do work at dual opterons and single cpu opterons though. So gcc is not a
bad choice there.

e) royalties made very few people rich

f) Rybka is for sure currently strongest single cpu engine, no question
about it. Whatever you say, that's not just taking over piece values from
Fruit, that's a whole lot more than just that.

g) Could you by the way explain
to me how to use fruit mobility in a piece square table program?



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