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Re: [gnugo-devel] more tests


From: Arend Bayer
Subject: Re: [gnugo-devel] more tests
Date: Sat, 1 Mar 2003 16:20:54 +0100 (CET)

On Sat, 1 Mar 2003, Gunnar Farneback wrote:

> Paul wrote:
> > three tests from a recent nngs game.
> >
> > # Connect out or play sente.
> > loadsgf games/nngs/joshj-gnugo-3.3.16-200302232226.sgf 61
> >  gg_genmove black
> > #? [G8|H7|H8|D6]
>
> I'll leave this for someone stronger to comment on but the played move
> at F10 doesn't look much worse than some of the proposed moves to me.
> I'm doubtful whether this is a good position for a test.

This is tricky. F10 looks correct to me. The point is that at move 65,
black can play G6. Black G6 - White E9 is refuted by Black E8.

This might be worth adding:

loadsgf games/nngs/joshj-gnugo-3.3.16-200302232226.sgf 65
gg_genmove black
#? [G6]

> > # Clearly better to capture.
> > loadsgf games/nngs/joshj-gnugo-3.3.16-200302232226.sgf 201
> >  gg_genmove black
> > #? [M6]
>
> This is not so clear to me. K7 defends with sente but M6 leaves less
> aji. I don't know which is most valuable.

M6 effectively cuts R12 and and O8. So it might be a little better.

But whatever black does, a big chunk of white's groups will die, so I
don't think it's worth regressing.

Arend






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