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Re: [gnugo-devel] komaster_1_28.1


From: Gunnar Farneback
Subject: Re: [gnugo-devel] komaster_1_28.1
Date: Tue, 19 Mar 2002 17:56:47 +0100
User-agent: EMH/1.14.1 SEMI/1.14.3 (Ushinoya) FLIM/1.14.2 (Yagi-Nishiguchi) APEL/10.3 Emacs/20.7 (sparc-sun-solaris2.7) (with unibyte mode)

Dan wrote:
> I added Gunnar's patch komaster_1_28.1 to CVS. It stops
> a crash in regression/games/nngs/camel-gnugo-3.1.26-200202280809.sgf.
> This is a new file. (Gunnar sent me the game, then I found it on his
> web page.)

It wasn't the same file. The game record I sent was from the day
before but the magic for putting it up on the web page didn't work.

> The crash is at move 84. The game continued for a few moves after
> that. I'm unclear how that happened.

I made a preliminary bugfix the same day which allowed the game to be
resumed. The extra moves in this game record were those played from
the crash position until the next adjournment.

> I'm including a portion of the backtrace below.

The crash is caused by repeated captures in a local triple ko. Such
behavior is stopped by the komaster patch.

/Gunnar



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