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Re: [gnugo-devel] Extremely bad mistake


From: SP LEE
Subject: Re: [gnugo-devel] Extremely bad mistake
Date: Thu, 12 Jun 2003 14:31:24 -0700

> 
> Of course it does. There's no way it could get any analysis correct if
> it didn't.
> 
> /Gunnar
> 
> 

Yes, I'm still learning the basics of the code, but I'm sure the suicide 
reading is wrong in this case. I have made the variable verbose=3. What I have 
traced is, from the moment gnugo was "considering attack of C19", until gnugo 
checked A16 in is_suicide in board.c, where I found board[41]=0 (A18 is empty). 
Of course, board[41] was 1 in the early analysis stage, but I don't know yet 
when it was changed to 0. Maybe somewhere it's not propagated through to the 
defense checking.
The tracing message showed " A16 would be suicide".

SP Lee




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