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Subject: Re: Crafty 16.6 confuses me!

Author: blass uri

Date: 11:24:52 04/22/99

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On April 22, 1999 at 11:54:35, James Robertson wrote:

>On April 22, 1999 at 07:10:18, Jouni Uski wrote:
>
>>Actually I have only P90 in home and that's too slow for Crafty - it always
>>loses after some tactical mistakes. Probably Crafty need much faster PC to
>>stand against Fritz...
>
>That is probably true... the faster the PC, the better Crafty plays. Remember,
>Bob Hyatt is testing Crafty on a quad Xenon with some tremendous MHz, so it is
>tuned for that speed. Try a few longer games (maybe 1 hour!?) and see who
>wins....
>
>Also, there have been reports that Crafty is crippled under Fritz due to it
>being forced to clear it's hash tables after every move, etc. I don't know if
>this is true, but it is a possibility.
>
>James
The new versions of crafy(including crafty16.6) are not forced to clear it's
hash tables after every move but Bob hyatt said that it is possible that there
are other similiar problems.

I do not know but I looked at a game of the real crafty with some tablebases
(1 hour per game on 2 K6-350 against Junior5) and I found that Crafty16.6 as an
engine for Fritz found all the moves of the game before the endgame of KRB vs
KRPP on my P200MMX in less than 11 minutes.

It needed almost 11 minutes for one of the moves and less than 6 minutes(usually
less than 1 minute) for the other moves.

I think that there is no big difference between the real crafty and the engine
for fritz(maybe there is a difference of 20-30 rating).

Uri



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