Author: Christophe Theron
Date: 21:16:06 04/20/02
Go up one level in this thread
On April 20, 2002 at 19:13:50, Peter Berger wrote:
>On April 20, 2002 at 11:53:46, Christophe Theron wrote:
>
>>
>>I think that you are right and that the 50 moves rule is going to save Tiger
>>here.
>>
>>As I told you in email, there is a bug in version 14.9. Tiger thinks this KRN/K
>>endgame is actually a KRN/KR. So it uses the wrong knowledge here because of
>>this bug and is not trying to push the king to the border to mate it.
>
>Ah, I didn't understand this fully. I understood how Tiger wouldn't give up its
>final pawn before but didn't realize that it would still think it is KRNKR even
>after that.
>
>>
>>This bug is already fixed and will not exist anymore in the next release.
>>
>>However I believe that Tiger will get a 0 elo points increase with this fix,
>>because when the bug happens the 50 moves rule will almost always save the day.
>>
>
>I am not sure - from the short sequence of moves seen in the end I'd think a
>draw by repetition could be another possible outcome.
>
>Anyway I agree it doesn't matter as you have fixed the problem( so additional
>information not needed anymore), it is a minor problem anyway and with Uli's
>offer to resign I'll try it only if my curiousity takes over and count it as a
>win for the Tiger in the meantime.
>
>Peter
It sounds reasonable, but I hope you will find the time to replay the endgame
some day. Actually I'm not 100% sure that the 50 moves rule will save it. It
could be, by lack of time on this slow hardware, that Tiger cannot compute deep
enough to see the 50 moves rule coming. And the opponent, if not forced to, can
refuse to capture the Knight. That makes it more unclear than it seems.
Christophe
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