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 <tim@tim-mann.org> 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, <h.g.muller@hccnet.nl> 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):
>
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> XBoard version was 4.9.0 on Arch Linux
>
>
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