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Subject: Re: Interview with Vasik Rajlich (The Fruit of The Rybka)

Author: Dann Corbit

Date: 15:14:45 12/20/05

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On December 20, 2005 at 17:03:13, Stuart Cracraft wrote:

>On December 20, 2005 at 17:00:01, Alessandro Scotti wrote:
>
>>On December 20, 2005 at 16:30:11, Stuart Cracraft wrote:
>>
>>>So what is so special about Fruit 2.1's search?
>>
>>It works. ;-)
>
>Makes no sense - hundreds, even thousands of programmers have labored
>for 50+ years on computer chess, and along comes Fruit and Rybka?
>
>Some new special trick - I don't think just "well debugged code" is
>the point.

It's the most important difference between his code and that of many others.  It
is solid as a tank.  His use of asserts is actually quite beautiful.  It shows
his clear and clever thinking.

>Some new special search tricks.

His branching factor is about 2, just like Shredder.  That's obviously the most
important thing.  Since he is smart enough to throw away the bad nodes and
consider the good ones better than other people, his eval and search are clearly
above average.

>Now our collective job is to find it and absorb it into the
>collective Borg-style.
>
>It will be assimilated. Resistance is futile!
>
>Stuart

It reminds me of the book:
"One Jump Ahead : Challenging Human Supremacy in Checkers"

Because Fabian will take another step, when we catch up to where he is now.




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