[FWD: Re: WinBoard/GNU Chess 5.02 bug ]

[Michael S. Kerry]

Hi,

I originally sent this to Tim Mann, and he suggested that it would be more 
appropriate to send to you.  Below is the relevant text from my original 
message to Tim.

Thanks,
-MK

=====
I believe I have found a minor bug in version 5.02 of GNU Chess running on 
WinBoard (version 4.2.6) under Windows 2000 Pro.  I don't know if it is a bug 
in WinBoard or GNU Chess.  It does not appear to happen when running under GNU 
Chess 4.0, from the same version of WinBoard, so I am guessing it is a GNU 
Chess bug.   Anyway, I thought you'd want to know about it.

Start WinBoard running GNU Chess 5.0 from the Windows start menu.
Select Mode->Edit Postion.
Make the following moves as if playing a game:

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Be3 Bg7 6.c3 Nf6 7.Nbd2

Now click on the Black clock to set it to be Black's move.
Finally, start GNU Chess by selecting Mode->Machine Black.

After a few seconds, the following error dialog appears:

'Illegal move "d4c6" from first machine'

When doing this with GNU Chess 4, no error occurs and Black plays normally 
(7...0-0).
====

-- 
******************** | "Why is a raven like a writing-desk?"
Michael S. Kerry     |                              - The Mad Hatter
address@hidden       | "Because the notes for which they are noted are
Baltimore, MD USA Â  Â | not noted for being musical notes." -Sam Loyd



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> --- Begin Message ---
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> Subject: 
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> Re: WinBoard/GNU Chess 5.02 bug 
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> Date: 
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> Tue, 23 Apr 2002 20:46:29 -0700
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> Thanks for the message.  I can reproduce that easily with GNU Chess 5.02+, but 
> other black-to-play positions I try result in legal moves from GNU Chess.  I 
> don't see anything wrong with what xboard/WinBoard is sending to GNU Chess, so 
> it must be a GNU Chess bug.  I'd suggest you report it to 
> address@hidden  We can hope it's already fixed in a newer version (I 
> think they're up to 5.04 now), but I haven't found time to download the latest 
> source code and compile it to see.
> -- 
> Tim Mann  address@hidden  http://www.tim-mann.org/
>
>
>
> --- End Message ---