Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Crafty 19.08 crushes The King .... ;>)

Author: Mike Byrne

Date: 11:16:58 12/29/03

Go up one level in this thread


On December 29, 2003 at 09:44:43, James T. Walker wrote:

>On December 28, 2003 at 19:43:48, Mike Byrne wrote:
>
>>On December 28, 2003 at 19:40:59, Mike Byrne wrote:
>>
>>>On December 28, 2003 at 18:29:22, Dimitris Poulos wrote:
>>>
>>>>Hi,
>>>>we all know of the famous Mavis Beacon who teaches typing. But I have a question
>>>>here. Where is this personality 'woodpusher' in your Crafty compiles?
>>>>Regards,
>>>>Dimitris
>>>>
>>>>
>>>>On December 28, 2003 at 18:17:01, Slater Wold wrote:
>>>>
>>>>>On December 28, 2003 at 18:11:39, Mike Byrne wrote:
>>>>>
>>>>>>On December 28, 2003 at 18:05:08, Mike Byrne wrote:
>>>>>>
>>>>>>>On December 28, 2003 at 18:00:32, Mike Byrne wrote:
>>>>>>>
>>>>>>>>Secane, PA USA  2003
>>>>>>>>Game 5'3"
>>>>>>>>                     1234567890
>>>>>>>>1   Crafty 19.08 SE  1½½1110111  8.0/10
>>>>>>>>2   The King ST      0½½0001000  2.0/10
>>>>>>>>
>>>>>>>>ahem ...I should add that this is Crafty 19.08 SE "pawnpusher" against CM9K
>>>>>>>>"Josh 6 yrs, rated 1200" personality.   The "pawnpusher" will next go against
>>>>>>>>CM9K "Josh 8 yrs, rated 1600"
>>>>>>>
>>>>>>>correction :
>>>>>>>
>>>>>>>that is Crafty "woddpusher", not "pawnpusher" - there is no personality named
>>>>>>>"pawnpusher" - but there might be next time :>)
>>>>>>
>>>>>>sigh ...
>>>>>>
>>>>>>that is "woodpusher" and not "woddpusher"
>>>>>
>>>>>Two words: Mavis Beacon.  ;)
>>>
>>>if you have one of my modified crafty's , type "krafty woodpusher" at the
>>>command prompt....
>>
>>send me an email with the word "include" to get the latest compile when built,
>>alternativley, Leo has it on his website with the other crafty engines
>>
>>http://wbec-ridderkerk.nl/index.html
>
>Hello Mike,
>I guess you are trying to get an idea of the rating of woodpusher by testing it
>vs CM9000 at 5'+3".  I believe the CM9000 ratings were done at 5'+10" and are
>probably only good at that time control.  Your time is close enough that it
>probably makes little difference though.
>Jim

Right - I knew they used longer time controls - but for this case -  the grenade
concept is close enough.  I am not claiming any "rating" as a result , but this
will give a user a rough idea.  I often get questions about the ratings for
different personality - when a personality is close to my rating, I think my
guess is more accurate  -- when I play much stronger or weaker personalties , my
guess is a "bigger" guess.  I am going to do more testing on this and assign a
rating to each personality relative to the CM personality.  I'm also going to
add more personalities that are based standard crafty evaluations , with just
the searched depth tweaked.  Those personalities will be identifed by the
rating.  I am going to do that , becasuse Crafty plays very reasonable moves,
even at shallower depths due to its good evaluation fucntion.  In fact, one of
my favorite methods to play crafty is to use the standard Crafty with 100% full
bore extensions , limited by search depth.

Also , I noticed that the Josh 1600 personality is very tough - it pops up with
a mate-in-8s or so that many 1600 will not see.  It also makes very poor moves
that most humans (rated 1600) will simply not play (unless they blunder - but
Josh 1600 makes blunders every game and then plays much better - a very uneven
level of play imo) - giving up the exchange for nothing.  I have played 8 year
olds rated 1600 and they do not play like CM Josh 1600.   They have a much
greater level of consistency than CM Josh 1600.



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.