bugXBoard - Bugs: bug #48321, Strange "adjudication:...

 
 

bug #48321: Strange "adjudication: Checkmate but bare king"

Submitted by:  None
Submitted on:  Sun 26 Jun 2016 11:39:51 PM UTC  
 
Category:  XBoard (X11) Severity:  3 - Normal
Item Group:  None Status:  None
Assigned to:  None Open/Closed:  Open
Release:  None

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Mon 27 Jun 2016 03:05:23 AM UTC, comment #2:

I could be missing a bug in the code that prints this message, but from reading it, it looks to me like the engine that lost (White) tried to claim a win (that may just be a minor bug in the message the engine issued). This code would then catch that you can't win with a bare king and adjudicate a draw.

Offhand it seems like it would be a good idea to run our own mate detector (prior to the weaker bare king detection) and make the stronger correction of giving the right engine the win. I.e., adjudicate the win for Black.

Tim Mann <mann>
Project Administrator
Sun 26 Jun 2016 11:48:17 PM UTC, comment #1:

XBoard version was 4.9.0 on Arch Linux

Philipp Cla├čen <phcl>
Sun 26 Jun 2016 11:39:51 PM UTC, original submission:

In the attached game, XBoard sets the score to remis although it looks like a regular check mate. Seems like a bug.

84. ... Qh2# seems like a normal checkmate and should result in a black win.

Anonymous

 

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Attached Files
file #37590:  xboard_changes_mate_to_draw.pgn added by None (4KiB - application/x-chess-pgn)

 

Depends on the following items: None found

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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-06-26 phcl Carbon-Copy- => Added phcl
    2016-06-26 None Attached File- => Added xboard_changes_mate_to_draw.pgn, #37590

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