Re: [Bug-XBoard] [bug #48321] Strange 'adjudication: Checkmate but bare king'

[Tim Mann]

...much much later...

It's not possible to tell exactly what happened from the PGN file. We would
need debug output from the engine. However, what almost certainly happened
was that an engine bug resulted in the engine issuing a message that said
White won by checkmate when actually Black won by checkmate. xboard didn't
handle this engine bug as well as it could have, but correcting for engine
bugs is a bit above and beyond the call of duty.



On Tue, Jun 28, 2016 at 5:17 PM Tim Mann  wrote:

> Philipp attached pgn for the game to the bug report in savannah.  It's
> here: https://savannah.gnu.org/bugs/download.php?file_id=37590
>
> On Sun, Jun 26, 2016 at 11:10 PM,  wrote:
>
>> If you don't show the position where this happened, there is no way
>> telling what the problem was. Normally XBoard corrects all ins for a side
>> with a bare King to a draw, and then appends this "but bare king" phrase
>> to the result message. This is mainly meant for wins by forfeit (e.g.
>> flagging), as in normal chess it should not be possible to checkmate when
>> you have only a king. (There was a problem in variant atomic, where it
>> actually quite usual that a king is the only piece left after you explode
>> the opponent king with your last pieces, but this was fixed in 4.9.0.)
>>
>> So was there a bare king? Was it a checkmate? Who was checkmated?
>>
>> Op Ma, 27 juni, 2016 1:48 am schreef Philipp Claßen:
>> > Follow-up Comment #1, bug #48321 (project xboard):
>> >
>> >
>> > XBoard version was 4.9.0 on Arch Linux
>> >
>> >
>> > ___
>> >
>> >
>> > Reply to this item at:
>> >
>> >
>> > 
>> >
>> >
>> > ___
>> > Message sent via/by Savannah
>> > http://savannah.gnu.org/
>> >
>> >
>> >
>> > ___
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>> > https://lists.gnu.org/mailman/listinfo/bug-xboard
>> >
>> >
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>

Re: [Bug-XBoard] [bug #48321] Strange 'adjudication: Checkmate but bare king'

[Tim Mann]

Philipp attached pgn for the game to the bug report in savannah.  It's
here: https://savannah.gnu.org/bugs/download.php?file_id=37590

On Sun, Jun 26, 2016 at 11:10 PM,  wrote:

> If you don't show the position where this happened, there is no way
> telling what the problem was. Normally XBoard corrects all ins for a side
> with a bare King to a draw, and then appends this "but bare king" phrase
> to the result message. This is mainly meant for wins by forfeit (e.g.
> flagging), as in normal chess it should not be possible to checkmate when
> you have only a king. (There was a problem in variant atomic, where it
> actually quite usual that a king is the only piece left after you explode
> the opponent king with your last pieces, but this was fixed in 4.9.0.)
>
> So was there a bare king? Was it a checkmate? Who was checkmated?
>
> Op Ma, 27 juni, 2016 1:48 am schreef Philipp Claßen:
> > Follow-up Comment #1, bug #48321 (project xboard):
> >
> >
> > XBoard version was 4.9.0 on Arch Linux
> >
> >
> > ___
> >
> >
> > Reply to this item at:
> >
> >
> > 
> >
> >
> > ___
> > Message sent via/by Savannah
> > http://savannah.gnu.org/
> >
> >
> >
> > ___
> > Bug-XBoard mailing list
> > Bug-XBoard@gnu.org
> > https://lists.gnu.org/mailman/listinfo/bug-xboard
> >
> >
>
>
>
> ___
> Bug-XBoard mailing list
> Bug-XBoard@gnu.org
> https://lists.gnu.org/mailman/listinfo/bug-xboard
>
___
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