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Subject: Re: Crafty 15.18 Vs Fritz 5 Game 2

Author: Robert Hyatt

Date: 10:18:14 07/29/98

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On July 29, 1998 at 11:39:08, Mark Young wrote:

>On July 29, 1998 at 07:29:30, Robert Hyatt wrote:
>
>>On July 29, 1998 at 06:21:58, Robert Hyatt wrote:
>>
>>>On July 29, 1998 at 00:43:48, Didzis Cirulis wrote:
>>>
>>>>Hi,
>>>>
>>>>When will the next game take place?
>>>>
>>>>Regards,
>>>>
>>>>Didzis Cirulis
>>>
>>>Mark is playing one per day.  Both have lasted basically all day so I assume
>>>he will kick off another one this morning, but am not sure.  It takes a *lot*
>>>of time for a human operator...
>>
>>
>>I've puzzled over game 2 a bit, because coming "out of book" a pawn down
>>really made no sense...  When we started this match, we started off with
>>the idea of level 0 120 180 (2 hours on the clock, 180 seconds added after
>>each move.)  I wanted to run Crafty in "tournament mode" and with "book
>>random 0" (which says search the book moves and ignore any that lose
>>material or have bad scores).  Since I couldn't make this the default and
>>leave it logged on, I chose to set those inside crafty when it noticed
>>"level 0 120 180".  Of course, after game one, Mark and I agreed that the
>>time control was *way* too long and reduced it to 30 180...  But yours
>>truly forgot to change the code that sets tournament mode and book random 0.
>>
>>Which at least explains how Crafty could leave book at -1.5...  I found
>>it this morning after game 3 had started..  and have corrected the "patch"
>>so that crafty should generally not fall into a -1.5 hole.  I can't do this
>>for "normal" server games because the search is deterministic and would play
>>the same move every time, which is sure death.  :)
>>
>>(against humans)
>
>I understand well that a good chuck of a programs strength is getting all the
>little things right. I have a big advantage here as Fritz is well tuned. Crafty
>on the other hand is a work in progress. If you want to stop until Crafty is
>more ready I have no problem with that. When can restart the match at 0-0 at
>another time. I think it is only right for me to offer this as I have no stake
>in the out come of this, and the reason for me playing was to evaluate Fritz and
>Crafty at there best. If you want to restart the match just let me know.
>
>I think everyone here knows that you and crafty are much better then a 0-3
>result.
>
>If you want to finish out the 6 games and play a rematch, if you wish. We can do
>this also.


No... keep going as long as you want...

here's analysis so far:

game 1.  good book line that both programs thought white was winning.  Both
were wrong.  that happens.

game 2.  bad book line, good attack by fritz, crafty defended and sort of
equalized although it ended up with the passed pawn problem again and lost.
That was simply poor tuning on my part and accurately reflects Crafty at
present.

Game 3.  Interesting from what little I saw.  Both sides attacked but Crafty's
came up short.  It underestimated the black pawns and got into trouble.  It
played not so great, and also probably got out-searched, which happens.

So there's no big problem with the match so far.  I've never said Fritz was
not strong, if you have followed the comments I've made.  Crafty's "speculative"
style is not the best way to play against a very fast program, because it tends
to get into trouble.  That's life.

Carry on... :)

Hopefully, as the week wears on, I will have less stuff to do and can let it use
the whole machine more, although I don't think that will make a huge difference
, at least in the games so far...

Bob



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