Computer Chess Club Archives




Subject: Re: About DanChess in cct7

Author: Tom Likens

Date: 07:38:02 02/09/05

Go up one level in this thread

On February 08, 2005 at 23:02:53, Daniel Shawul wrote:

>On February 08, 2005 at 20:52:44, Tom Likens wrote:
>>On February 08, 2005 at 11:10:17, Daniel Shawul wrote:
>>>On February 08, 2005 at 09:52:07, Anthony Cozzie wrote:
>>>>On February 08, 2005 at 00:09:45, Daniel Shawul wrote:
>>>>>Hello every one,
>>>>>  I read in the threads below that some people still suspect
>>>>>danchess to be a clone. It is not a clone of any engine . If any body has any
>>>>>doubts  , he can ask me and i can send the source to a reliable person so that
>>>>>it is checked. But please don't make posts here and there telling what you think
>>>>>it is.
>>>>>   Danchess is participating in every other tournament because
>>>>>it is found not to be a clone. In WBEC for example a group of people checked it
>>>>>and found it not to be a clone so it is participating. There is no place ,at
>>>>>least one that i know of, that danchess is not particaipating because of this
>>>>>I have sent my source to Hyatt a couple of times but i do not know if he checked
>>>>>it or not,becaues i have got no response. If he wants  i can send it to him
>>>>>again,but it will only be a waste of his time and mine since there is no
>>>>>   My current version is as strong as crafty even better which i am very proud
>>>>>of. Check the games at AEGT where danchess trashed crafty 7.5 - 2.5.
>>>>>somepeople just like talking about others. I like to work rather than talk.
>>>>>I am sorry if i sounded very pompous but that is not  my intention.
>>>>>best wishes
>>>>I've been quite impressed by the improvements in DanChess (including the
>>>>parallel code), but 10 games is not _nearly_ enough to draw conclusions.  I've
>>>>seen Zappa beat Crafty 10 times in a row, and vice versa . . . .
>>>   I think i made a little mistake in my statement above
>>>        My current version is as strong as crafty even **SOMETIMES** better...
>>>without **SOMETIMES** the sentence would have been incomplete.
>>>   As i said in my reply to Uri. I am not drawing any conclusions with this
>>>games,I know statistics is a tricky thing.
>>>But still i think i can say with a good safety factor that danchess is as strong
>>>as crafty. This ofcourse depends on the definition of "as strong". For me +-
>>>30elo is insignificant.
>>>  I really don't want to discuss on this issue further because this is not Why i
>>>originally posted the message.
>>>Hope you understand.
>>Hey Dan,
>Hi tom
>>Well, you can certainly feel justified in saying that beating Crafty
>>7.5-2.5 is better than *losing* by the same margin.  Of course as
>>others have pointed out statistically insignificant, but what the heck.
>   that's is correct,it is very much statistically insiginificant.
>and i am sorry if i gave the wrong impression. I just brought it up
>,becuase i *think* they are at the same level looking at results of different.
>May be crafty is much better. I don't know.
>>BTW, like Anthony I've also been impressed with DanChess's improvement
>>over the last year, congratulations and good luck in CCT7.
>   Thanks for the nice words!
>best wishes
>p.s: you have been away for some time, what's up with Djinn?

Work has been crazy over the last year.  I got promoted and subsequently put
in charge of an engineering team.  I was glad to be promoted but I severely
underestimated the amount of time it would require.  Things are starting to
settle down a bit, so I'm hoping to start working again on either Djinn or
even more likely a completely new engine, using 0x88 techniques instead of
bitboards (even more radical--I'm thinking of regressing to C from C++).
I'm also considering open sourcing it, since that might be interesting.


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