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Subject: Re: Deep<9> Is a Clone based of Pepito? Really?

Author: Mike Byrne

Date: 17:27:34 03/13/03

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On March 13, 2003 at 20:09:10, Thomas Mayer wrote:

>Hi Mike,
>
>>> If there someone? Who could confirm this therory?
>>> Deep<9> = Pepiti 1,59?
>>> see also:
>>> http://f11.parsimony.net/forum16635/messages/44732.htm
>
>> That would not surprise me.  Denis Grafen asked for my crafty code mods.  I
>> remembered he "wrote" Deep <9> , so I said "sure, you send me what you have
>> and I will send you what I have".  Naturally, I did not hear from him again.
>> I think he should be banned from computer tournaments for 5 years if the
>> allegations are true, which I do not know are true personally.
>
>Well, I think 5 years is not enough... -> tomorrow I will publish the truth
>about it. In fact he just changes some text-infos in Pepito 1.59 and that's it.
>I found in the engine the same bugs then Pepito had, the same set of commands in
>console mode, the same board representation and when analyzing a position with
>same settings the same number of nodes, the same eval and the same pv... which
>can be reproduced with any position you may try. Yesterday I got another version
>of this crap where he changed some text output and some other things... (he
>changed e.g. the config file commands but his own config file was wrong so that
>it does not read correct pawn hash and egtb-cache values...) Maybe he has
>changed one eval parameter, because the node count differs now by 1-2% - anyway
>the pv stays nearly the same to Pepito 1.59 and the score still is equal... so
>the node change might be also a consequence of the different hash settings... To
>me it is more then 100% proven that it is an absolute clone - and the man behind
>it ... oh well, I have no words for such persons...
>
>Greets, Thomas

I said 5 years as a minimum.  I'm ok with it being _longer_.  If what you say is
true (and I have no reason to doubt you), you nailed the scoundrel.  It is just
as good as DNA IMO.

Congrats.

Best,

Michael




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