Computer Chess Club Archives




Subject: Re: Transferring eval to deep blue game

Author: Vincent Diepeveen

Date: 16:52:29 12/05/99

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On December 04, 1999 at 18:52:55, Jeremiah Penery wrote:

>On December 04, 1999 at 18:32:15, Dave Gomboc wrote:
>>On December 04, 1999 at 18:18:07, Jeremiah Penery wrote:
>>>On December 03, 1999 at 13:20:46, Vincent Diepeveen wrote:
>>>>Dusan, if you add a huge penalty for having opposite bishops in endgame,
>>>>does PHalanx play 36.axb5! in the deep blue - kasparov game then (game 2),
>>>>at say 11 ply depth, or does it need a bit bigger depth?
>>>>I assume if so that it plays 37.Be4? too (Qb6 wins forced there).
>>>No.  Qb6 is a forced draw there.  If I have time soon, I'll try to make some
>>>analysis and post it.  IIRC, black will force a repetition.
>>It would be nice to settle this, so that people don't have to hash it out for
>>another couple of years.  Analysis is welcome, but it might be a good idea to
>>look back into the archives so you're not starting over from scratch.
>I agree.  If I had the full archives of CCC, or had any idea where (when) to
>look, this is where I'd start.  Other than that, I'll definitely search Deja
>I do remember letting Crafty search this one for a _very_ long time.  Sometime
>around depth 20, it showed Qb6 with a score of 0.00, then switched to Be4 with

crafty has a huge penalty for opposite bishops in the endgame.

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