Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: The Rybka Flamewar & question for Vasik

Author: Vincent Diepeveen

Date: 18:10:05 02/16/06

Go up one level in this thread


On February 16, 2006 at 15:06:41, Zappa wrote:

>On February 16, 2006 at 14:39:34, Vasik Rajlich wrote:
>
>>On February 16, 2006 at 13:17:10, Zappa wrote:
>>
>>>On February 16, 2006 at 06:21:57, Djordje Vidanovic wrote:
>>>
>>>>On February 15, 2006 at 10:20:18, Zappa wrote:
>>>>
>>>>>So I dropped by to see how my old buddies in CCC were doing, and found a massive
>>>>>flamewar :)  This is far more to my liking than dry test results, so I thought
>>>>>I'd weigh in with a few comments.
>>>>>
>>>>>The majority of members in CCC seem to be unable to think rationally about
>>>>>Rybka.  I saw the following argument about 500X: "Vasik is violating the
>>>>>charter" "But Rybka is so awesome".  Clearly this is complete idiocy.  The law
>>>>>is intended to apply to everyone equally, regardless of whether or not they have
>>>>>an awesome engine.
>>>>>
>>>>>I left (and this is not a coming back post) because I didn't like reading tons
>>>>>of testing posts.  However, the majority of people here appear to like it here.
>>>>>  From what I read in the flamewar Skinner seems correct that Vasik violated the
>>>>>charter, but perhaps rather than crucifying Vasik (or Skinner), the charter
>>>>>should be amended so the club serves the interest of the majority.  It really
>>>>>seems like the majority of people don't mind his "commerical posts" - so what's
>>>>>the problem?
>>>>>
>>>>>I also read Enrico's post on Rybka's nodecount.  Vasik claimed it was the result
>>>>>of a bug.  I read that as "my node count obfuscation algorithm has a bug and
>>>>>will be fixed posthaste".  If you look at Enrico's numbers, its obvious that
>>>>>Rybka is really searching at 2-3M+ nps on big hardware.
>>>>>
>>>>>So, Vasik, please tell me: why would you would want to hide the node count of
>>>>>Rybka?
>>>>>
>>>>>anthony
>>>>
>>>>
>>>>Interesting post.  And very telling.  Demands some kind of reply, at least from
>>>>a curious member of the CCC (but surely not from Vasik, as the question you ask
>>>>is rather impertinent and irrelevant for the masses):  why wouldn't you,
>>>>Anthony, want to release your program so that Chrilly Donninger might try his
>>>>disassembling skills on Zappa as he did with Rybka?  A reminder for you:  the
>>>>verdict was that Rybka had no other program's code in it...
>>>>
>>>>If Rybka's code is messy and obfuscated, so be it. What's your code like remains
>>>>to be seen, of course :-).  LOL.
>>>>
>>>>Djordje
>>>
>>>I really don't understand your post at all.  I am not saying that Rybka is a
>>>clone.  Nor am I saying that his source code is messy.  I am just curious why he
>>>deliberately modifies his node count/nps.  No one else does this.  Sure, some
>>>people have different styles of counting.  But no one does printf("nps / 20"),
>>>and that appears to be what Vasik is doing.
>>>
>>>anthony
>>
>>It's not what I'm doing. I really don't know how you came to that conclusion.
>>Although it's true that my node counting is a bit unusual, with a little bit of
>>effort I could make it more conventional.
>>
>>Vas
>
>I didn't save Enrico's post, but Rybka's total nodes went something like this:
>
>50,000
>100,000
>150,000
>200,000
>10,000
>12,000
>14,000

Also compare this with the nps at real fast hardware at the same positions
please. It is inconsistent.

>I would think that no matter how creative your counting scheme is, it should
>still increase monotonically.
>
>anthony



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.