Thoughts...

Discussion of anything and everything relating to chess playing software and machines.

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Alexander Schmidt
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Joined: Thu May 10, 2007 2:49 pm

Re: Thoughts...

Post by Alexander Schmidt »

Graham Banks wrote:Despite Zach posting that he'd provide absolute proof that Vas had taken code from Fruit for Rybka 1.0, nothing has been shown after more than a year.
You are kidding?

http://talkchess.com/forum/viewtopic.ph ... 93&t=23029

There was more, but I will not search the whole forum for that old stuff.

Even some code where shown by Zach. But to say it Juri Osipov: On this subject, easy to talk between programmers, but it is difficult to talk between cheerleaders.

We both are the cheerleaders, Graham.

Today I showed some UCI output:

http://talkchess.com/forum/viewtopic.ph ... 39&t=30588

But remember, we are not talking about the question whether Rybka is based on Fruit or not. Everything is said about that issue.

We are talking about that some people treat Ippolit like a clone without any proof.
Last edited by Alexander Schmidt on Sat Nov 14, 2009 2:34 am, edited 3 times in total.
bob
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Location: Birmingham, AL

Re: Science &Law should be impartial = neutral without b

Post by bob »

Rolf wrote:
Dr.Wael Deeb wrote: And I can tell you Rolf that the authors of the mentioned programs don't jump like a mountain goat everytime a stronger program than theirs appears and point fingers at it as a clone without even bothering to proove it....
For Vasik it's a usual practice already....
What? LOL

The fact that they remain silent proved their innocence?

And if Vas declared ONCE that the clone was a clone then he is a goat like jumper??

Again the top question to you and your collegues: why dont you destroy the myths of Shredder, Hiarcs and Fritz all the same? Because is goat jumper? ROTFL

In such cases it's good to ask CUI BONO that shameless thieves try to harm Vas and only Vas. To me it sounds like mafia blackmail. But I'm not really familiar with computerchess. CUI BONO, Dr. Deeb.
I won't begin to try to psychoanalyze Vas. I can tell you this, in every case where I have publicly claimed that XYZ was a clone of my program, I produced a ton of evidence to support the claim. Showing code matches. filename matches. file contents. string patterns. bitboard patterns. procedure names. Etc. It may well be that he is caught up in his own problems. He sees a few key things that so far as he knows, only appear in Rybka. And he spots them in ths IP* engine. But he doesn't want to point those out as that reveals too much information. "Hoist on his own petard" comes to mind.
Alexander Schmidt
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Joined: Thu May 10, 2007 2:49 pm

Re: Thoughts...on The Sweet Bird Of Truth......

Post by Alexander Schmidt »

BTW: You are showing illegal content here:

"Dieses Video ist aufgrund von Urheberrechtsbeschränkungen in deinem Land nicht verfügbar."

I am looking forward to see if the link will be deleted like the links to some engines :P
Christopher Conkie
Posts: 6074
Joined: Sat Apr 01, 2006 9:34 pm
Location: Scotland

Re: Thoughts...on The Sweet Bird Of Truth......

Post by Christopher Conkie »

Alexander Schmidt wrote:
BTW: You are showing illegal content here:

"Dieses Video ist aufgrund von Urheberrechtsbeschränkungen in deinem Land nicht verfügbar."

I am looking forward to see if the link will be deleted like the links to some engines :P
I hope so, it will be way more exciting than the other content in this thread.

And I really do mean that......

:)

Christopher
bob
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Location: Birmingham, AL

Re: Thoughts...

Post by bob »

Graham Banks wrote:
Alexander Schmidt wrote:
Remember how the engines inproved in the last years. After years of stagnation Fruit (and later Glaurung) appeared. Are you sure no one copied some code? Did you ever blame a commercial author for the improvement in his engine because he maybe took some code?

You did not, and that is fine.

You did not when Rybka 1 appeared, allthough it was 600 ELO points stronger than it's predecessor.

You did it not even when I showed similaries between Rybka and Fruit. This is also fine to me as long as you apply the same standart for all engines.
Despite Zach posting that he'd provide absolute proof that Vas had taken code from Fruit for Rybka 1.0, nothing has been shown after more than a year.
Despite this, some here are still making accusations without proof.
Is there a link to where we can all view the absolute proof?

Cheers,
Graham.
There was _more_ than enough "proof" offered. But one has to look at the proof with an unbiased eye, otherwise there is no proof good enough. This _really_ did happen. Does it mean anything on the cosmic scale? nope. Just shows that some have slightly different moral standards than others. One has to live with himself, first, and with others, second.
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Eraserheads
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Location: Quezon City, Philippines

Re: Thoughts...

Post by Eraserheads »

gerold wrote:Nice games Michael.
Do you think 85d3 is the strongest?

Best.

Gerold.

P.S.
Do you have any comment on the node
count of this engine.
- Yes I think it is the strongest. Future versions are said to have better time management, but I was initially discouraged when Robbolite 0.0085d5 started 0-4 vs R3 in another match. Newer versions have come out since then, but I have yet to test them. For me, 85d3 is already sufficient, has yet to lose on time, and has proven to best R3 in many matches already.

Node counts typically show 700-900kn/s on my Core 2 duo rig.
gerold
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Location: van buren,missouri

Re: Thoughts...

Post by gerold »

Eraserheads wrote:
gerold wrote:Nice games Michael.
Do you think 85d3 is the strongest?

Best.

Gerold.

P.S.
Do you have any comment on the node
count of this engine.
- Yes I think it is the strongest. Future versions are said to have better time management, but I was initially discouraged when Robbolite 0.0085d5 started 0-4 vs R3 in another match. Newer versions have come out since then, but I have yet to test them. For me, 85d3 is already sufficient, has yet to lose on time, and has proven to best R3 in many matches already.

Node counts typically show 700-900kn/s on my Core 2 duo rig.
Thanks for the reply. I agree with you about d3.
D4 and d5 not as good.
D8 is good but did lose on time a couple times.

Best.

Gerold.
Alexander Schmidt
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Joined: Thu May 10, 2007 2:49 pm

Re: Thoughts...

Post by Alexander Schmidt »

bob wrote:There was _more_ than enough "proof" offered.
I remember some admitted that Rybka probably started as Fruit, but then people wanted proofs that

a) still original Fruit code is inside
b) it is in the chess playing part.

The fact that Rybka is stronger was enough to say: it can't be a clone, and if it was a clone it was changed so much that it is not a clone anymore.
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Matthias Gemuh
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Re: Thoughts...

Post by Matthias Gemuh »

Matthias Gemuh wrote: Better time management in 85d4 and above.
Will now test 85d8.

Matthias.
Kranium made some mistakes.
The 2 time managements in 85d8 are mutually exclusive.
That means one _MUST_ be set to TRUE and the other to FALSE.
Enhanced Time Factor should be 25 by default not 30.

Matthias.
My engine was quite strong till I added knowledge to it.
http://www.chess.hylogic.de
Osipov Jury
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Re: Thoughts...

Post by Osipov Jury »

Remember, Vas wrote in Rybka 3 FAQ:

"Has Rybka been slowed down to prevent decompilation?

No. We have a much better way to deal with this issue - just wait a bit and you'll see"

And today we have Ippolit.