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Subject: Re: a little statistics - sometimes I can't resist :-)

Author: Brian Katz

Date: 11:32:07 10/23/02

Go up one level in this thread


On October 22, 2002 at 10:00:55, Daniel Clausen wrote:

>On October 22, 2002 at 05:57:23, Brian Katz wrote:
>
>[snip]
>
>>Please tell me why all these other posters think that I am only basing my
>>findings on 8 games.
>
>Maybe you should read your intial post in this thread again? You wrote:
>
>: I raised the Hash Table settings for Fritz 7 to 192 MB as opposed to
>: Deep-Fritz 7 set at 32 MB Hash. Surely, 192 should be much too high for
>: such a time control with my processor speed. Well, Fritz 7 still beat out
>: Deep-Fritz 7 by 5.0-3.0
>
>Maybe that is the reason?
>
>
>[snip]
>
>>The simple fact of the matter is that DF7 does not perform as well on my
>>computer as Fritz 7.
>
>Fine. And it's very well possible that you've made enough games (against
>different opponents etc) to come to this conclusion. But that's not the point
>you made in your initial posting.
>
>In your initial post, you said you increased the HT of F7 to 192MB, let the HT
>of DF7 at 32MB, played 8 games and were disappointed/surprised by the outcome.
>_That's_ what people respond to, _not_ all the other games you played and which
>lead to the conclusion that F7 is stronger on your comp than DF7 in general.
>
>
>[snip]
>
>>So please, who ever replies to this post. MY findings are not based on only 8
>>games, they are based on many. At least 200-300 games.
>>What I found odd in the last tournament I ran is the extremely high hash table
>>settings for Fritz 7. I thought that this would handicap Fritz 7 but it still
>>performed better anyway.
>
>And in order to find out whether the extremely high HT settings for F7 really
>handicap F7 you played only 8 games. The 200-300 games you played before don't
>count since they were not played with these extremely high HT settings...
>
>Sargon

I agree the 8 hashtable experiment games should not count but I think the many
of the other should.
I just ran a 20 game 2/0 tournament. Each had their own opening book, perm brain
turned on this time and again 192 MB Hash for Fritz 7 and 16 MB Hash for Deep
Fritz 7 here are the results

Blitz:2' Eatontown  0

                  1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
1   Deep Fritz 7  ½ ½ 1 0 1 0 1 1 0 1 1 0 1 ½ 1 ½ ½ 0 0 0 10.5/20
2   Fritz 7       ½ ½ 0 1 0 1 0 0 1 0 0 1 0 ½ 0 ½ ½ 1 1 1  9.5/20

I'll try this same experiment with Permanent Brain off next time around as
suggested for engine tournamnents on 1 pc.
Then I will try another 2 minute time control with normal Hash settings.
I don't doubt that DF7 is stronger than F7 but it does not seem to be the case
on my PC. I thought 192 MB Hash would be much to high for a 2 minute game. Of
course if the above was only 15 round tournament the score would have been a
blowout with DF7 9.5 to F7 5.5.
So of course many many games are required to get an accurate picture of actual
playing strength.
But over and over again DF7 is not showing any Strength increases on MY PC.
I just find it interesting and fun to do comparisons with all kinds of settings.
 All replies welcome as always
Brian Katz




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