Author: Kurt Utzinger
Date: 10:51:16 04/22/05
Go up one level in this thread
On April 22, 2005 at 13:38:31, Ernest Bonnem wrote:
>On April 22, 2005 at 13:06:00, Kurt Utzinger wrote:
>
>>On April 22, 2005 at 11:34:46, Ernest Bonnem wrote:
>>
>>>My experience is that even with Nunn(1) if you repeat the 20-game match you can
>>>obtain quite different results. For instance 14-6, 11-9, even 9-11 !
>>>(S9 against Fruit-Toga, 15mn to 30mn KO)
>>
>> Hello Ernest
>> Your statement somewhat surprised me. I remember a test
>> I made some years ago with the Nunn2 positions and I got
>> identical results when repeating the 40 games matches.
>> It's however very important to delete all learn files
>> and not to use a blitz time control where the engines
>> must often move "without thinking" at the end of a game.
>> Kurt
>
>Well, Kurt, I was disappointed too by the different results. I analyzed the case
>of games with different outcome : of course, sooner or later in the game you get
>a move which is different, maybe the 23th, or the 28th... And you can see that
>between these 2 moves, the eval difference is very small.
>For S9 UCI, there was no book and no position learning, for Fruit-Toga
>(UCI)there is no book and learning anyway.
>Maybe 15mn or 30mn KO, without time increment, is too small (AMD 2000+).
>The first matches were with ChessPartner GUI, the last ones with ChessBase GUI.
>
>When you did your Nunn2 matches, it would be interesting to know how many
>duplicate games you obtained.
>And I should make an experiment in playing 10 times the same Nunn position...
Hello Ernest
My experiment was made 2 or 3 years ago at time control
15m+10s I think and as far as I can remember only one
or two games out of 80 were not identical. It is high
time to repeat this test and to save the games / results.
Kurt
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.