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Subject: Re: Handicapping Chess Engines

Author: Roy Eassa

Date: 09:30:00 10/25/01

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On October 25, 2001 at 12:28:29, Roy Eassa wrote:

>On October 25, 2001 at 12:17:53, Colin Frayn wrote:
>
>>On October 25, 2001 at 06:37:00, Mike Hood wrote:
>>
>>
>>>But maybe I'm getting away from my reason for posting this message... my
>>>question is: What IS the best way to handicap an engine? Should it be done on
>>>engine level? Or should the handicapping be done by a meta-engine interface that
>>>looks at an array of valuations for the n legal moves and says "Let's pick that
>>>one"?
>>
>>Beowulf has skill modes, and implementes them pretty simply.  Basically, it just
>>gradually removes the search improvements one by one, adds randomness into the
>>move ordering, adds randomnes into the positional evaluation, and disables the
>>hash table, etc...  I think this is pretty much the only acceptable way forward.
>>Even *ColChess* still beats me when searching to 2 ply if I'm playing fast Blitz
>>games.  (Of course it has quiescence search too...)
>>
>>Yes, I _am_ that bad, BTW.
>>
>>I'm not sure what kind of ELO the lower skill levels play at.  It's probably
>>still around 1800 or so I'd expect on decent hardware.
>>
>>Cheers,
>>Col
>
>
>FYI, the following URL in your profile is bad:
>
>http://www.ast.cam.ac.uk/~cmf/beowulf.html

Google finds it at:

http://www.ast.cam.ac.uk/~cmf/chess/beowulf.html



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