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Subject: Re: Cleaned ECM aka WACII revisited

Author: Uri Blass

Date: 10:52:51 09/23/01

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On September 23, 2001 at 13:00:26, Peter Berger wrote:

>On September 23, 2001 at 11:28:19, Miguel A. Ballicora wrote:
>
>>On September 23, 2001 at 08:54:02, Gian-Carlo Pascutto wrote:
>>
>>>On September 23, 2001 at 05:29:51, Peter Berger wrote:
>>>
>>>>
>>>>2b3k1/p4ppp/7q/2Q5/8/P3r1P1/1r4BP/R3R1K1 b - - bm Bb7; id "ECM.1197";
>>>>
>>>>This one looks wrong.
>>>
>>>Nope...Bb7 is the fastest mate.
>>
>>I see that both (Rxg2 and Bb7) ends up in checkmate or huge advantage. I do not
>>think it is a good idea to have this kind of test. Once a program finds a mate
>>it might stick to it. That does not change at all the strength of a program. In
>>other words, this position does not test any improvement in stregth IMHO.
>>I would take it out.
>
>Bringer confirms the faster mate with more time - I think this position is a
>little pointless but both decisions make sense:
>
>0:00:21.4  (11/34)    6371918   18.32  1...Rxg2+  (Mat=-440,50=0)
>0:01:32.8  (11/40)   26569158   Matt in 10  1...Rxg2+  (Mat=-440,50=0)
>0:06:19.9  (11/40)   103276783   Matt in 9  1...Bb7  (Mat=-100,50=1)


For comparison Chessmaster6000 ss=10 (pIII850) see 1...Bb7 as mate in 9 after 1
second on PIII850

Uri



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