Re: [gnugo-devel] bug in gnugo? complains of "occupied position"

[Terry McIntyre]

S'true, removing the duplicates from the .sgf file fixed the problem; I 
reported the bug to the author of that particular bit.

However, I'm fairly sure that gnugo chose to remove M15 entirely,
rather than to ignore the duplicate plays - which seems a bit
of a drastic measure.

Terry McIntyre -- UNIX for hire
Software Development, Systems Administration, Computer Security

cell: 213-291-5169 email: address@hidden
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On Oct 27, 2005, at 8:42 AM, Gunnar Farnebäck wrote:

> Terry wrote:
> > I was trying to get an estimated score of a game, and gnugo
> > did something quite odd; the same error message can be reproduced by
> > asking gnugo to play the game.
> >
> > gnugo stuff.sgf
> >
> > WARNING: Move off board or on occupied position found in sgf-file.
> > Move at M15 ignored, trying to proceed.
>
> Whatever created your sgf file is buggy, as GNU Go warns you.
>
> > M15 just happens to be a crucial play, and removing it materially
> > affects the predicted score, lol.
>
> You don't have to remove M15 to fix the problem.
>
> > ;W[le]PL[W]
> > ;MN[215]W[le]PL[W]
> > ;MN[216]W[le]
>
> I suggest you try to remove the two duplicates of the M15 move, i.e.
> replace the lines above with a single ";W[le]".
>
> /Gunnar
>
>
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