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Re: [gnugo-devel] Owl mistake and thrashing dragons.
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From: |
Gunnar Farneback |
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Subject: |
Re: [gnugo-devel] Owl mistake and thrashing dragons. |
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Date: |
Mon, 20 Jan 2003 20:00:26 +0100 |
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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:
> > White is dead, even way dead, but starts thrashing with P7. GNU Go has
> > a very clear lead and can easily afford a local reply. As it happens
> > we have a policy to attack thrashing dragons, but the implementation
> > is not good enough, as this example will show.
>
> This does seem to be an area where a big improvement is possible
> and this looks like an excellent test case.
Maybe we should start a specific test suite for thrashing dragons. Do
these test cases look good or do we want more/other correct moves?
loadsgf games/nngs/Temnik-gnugo-3.3.15-200301161937.sgf 220
1 gg_genmove black
#? [Q7|Q6|O7|O6]
loadsgf games/nngs/Temnik-gnugo-3.3.15-200301161937.sgf 222
2 gg_genmove black
#? [Q7|Q6|O7|O5]
loadsgf games/nngs/Temnik-gnugo-3.3.15-200301161937.sgf 228
3 gg_genmove black
#? [O5|N5|N4]
loadsgf games/nngs/Temnik-gnugo-3.3.15-200301161937.sgf 230
4 gg_genmove black
#? [N4|O4|M4]
loadsgf games/nngs/Temnik-gnugo-3.3.15-200301161937.sgf 232
5 gg_genmove black
#? [M3|M2|N3|L4|M5|M4]
/Gunnar