Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Shredder bug? Nonsense again

Author: Ricardo Gibert

Date: 05:30:47 05/26/02

Go up one level in this thread


On May 26, 2002 at 08:29:03, Ricardo Gibert wrote:

>On May 26, 2002 at 08:24:54, Uri Blass wrote:
>
>>On May 26, 2002 at 07:46:18, Ricardo Gibert wrote:
>>
>>>On May 26, 2002 at 06:58:41, Harald Faber wrote:
>>>
>>>>On May 25, 2002 at 20:18:27, Peter Kappler wrote:
>>>>
>>>>>On May 25, 2002 at 18:52:10, Ricardo Gibert wrote:
>>>>>
>>>>>>In the following position against a guest:
>>>>>>
>>>>>>[D]8/8/8/8/7p/4k2P/5pK1/8 b - - 1 80
>>>>>>
>>>>>>BK-Chess (Shredder) allowed a draw by repetition by 80...Ke2 81. Kh1 Ke1 82. Kh2
>>>>>>Ke2 83. Kh1 Ke1 84. Kh2 Ke2 85. Kh1. Supposedly it has all the 3, 4, 5 man EGTBs
>>>>>>as per its finger notes.
>>>>>>
>>>>>
>>>>>I suspect it had KPPKP, but not KQPKP, which explains why it happily kept a
>>>>>mate-in-X position on the board instead of queening the pawn (which would drop
>>>>>the score to "only" +10).
>>>>>
>>>>>Note that it still should have seen the correct mating line in the search, but
>>>>>perhaps Shredder doesn't bother searching if it finds tablebase mates at the
>>>>>root.
>>>>>
>>>>>-Peter
>>>>
>>>>
>>>>I don't know about that, fact is: on my machine, like always when someone like
>>>>Ricardo complaints about a "BUG", everything is fine. 1.Ke2 (#6) Kh1 2.f1-Q+
>>>>(#5) and so on, no draw. In opposite to the SUPPOSED installed 5-man, *I* really
>>>>have them installed.
>>>>
>>>>I wonder if these "bug" resports will ever end...I am feeling like Don
>>>>Quixote...
>>>
>>>Forgive me if I'm being obtuse, but how is it that "everything is fine" when the
>>>game ended in a draw by repetition?
>>
>>Everything is fne on his machine because on his machine the KQP vs KP tablebases
>>are installed.
>>
>>Uri
>
>I guess I continue to be obtuse, but where did *he* make the qualification "on
>his machine"?

Oops! I see it now. Never mind.



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.