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[bug #48321] Strange "adjudication: Checkmate but bare king"
From: |
Tim Mann |
Subject: |
[bug #48321] Strange "adjudication: Checkmate but bare king" |
Date: |
Sat, 15 May 2021 01:42:36 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:88.0) Gecko/20100101 Firefox/88.0 |
Update of bug #48321 (project xboard):
Status: None => Invalid
Open/Closed: Open => Closed
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Follow-up Comment #3:
H.G. explained a bit more in email at the time:
"Normally XBoard corrects all wins 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.)"
The above produces confusing results in a case like this one, where black won
by checkmate, but (it seems) an engine bug caused the engine to send xboard a
message saying that white won by checkmate. Correcting for engine bugs is a
bit above and beyond the requirements for xboard, though it does try to do so
sometimes.
Anyway, I am closing this as an engine bug, not xboard bug.
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Tim Mann <=