Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Shredder bug? Nonsense again

Author: Uri Blass

Date: 05:24:54 05/26/02

Go up one level in this thread


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



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.