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Re: [gnugo-devel] Re: [computer-go] Competition of the GO-algorithms
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Re: [gnugo-devel] Re: [computer-go] Competition of the GO-algorithms |
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Thu, 2 Dec 2004 05:25:21 -0800 |
Gunnar wrote:
> Pattern ED91 causes black to add a stone at C2. There are many ways in
> which the pattern could be revised but I propose removing it entirely.
> These days the move valuation should be able to understand the
> importance of such moves without an explicit j pattern.
We still see a lot of bad tenukis. I suppose that taking
out j patterns will make the engine weaker in the short run.
It could make the engine stronger in the long run provided
we don't just remove them but try to address the underlying
problems.
Here's a position where ED91 is matched at C11. GNU Go
doesn't tenuki, but instead plays C14. However C14 is
inferior to C11. And of course A12 would be just
bizarre if it got played. Among these 4 moves, C11,
corresponding to pattern ED91 is the best.
Top moves:
1. C14 24.87
2. C13 24.67
3. A12 24.19
4. C11 24.07
A12: owl attack/defend for B16
A12: 20.77 - change in territory
A12: 1.42 - strategic bonus for B16
A12: 4.00 - total followup value, added 4.00 as
territorial followup
A12: 2.00 - added due to followup (4.00) and reverse
followup values (0.00)
Move generation values A12 to 24.18
C11: 7.67 - change in territory
C11: 1.32 - strategic effect on C12
C11: 1.06 - strategic effect on D10
C11: 3.64 - total followup value, added 3.64 as
territorial followup
C11: 1.82 - added due to followup (3.64) and reverse
followup values (0.00)
C11: 0.20 - connects strings (connect value 2, shape
factor 0.040)
C11: 24.06 - minimum accepted value
Move generation values C11 to 24.06
C13: owl attack/defend for B16
C13: 21.05 - change in territory
C13: 1.42 - strategic bonus for B16
C13: 4.00 - total followup value, added 4.00 as
territorial followup
C13: 2.00 - added due to followup (4.00) and reverse
followup values (0.00)
C13: 0.20 - connects strings (connect value 2, shape
factor 0.040)
Move generation values C13 to 24.66
C14: owl attack/defend for B16
C14: 21.39 - change in territory
C14: 1.42 - strategic bonus for B16
C14: 4.12 - total followup value, added 4.12 as
territorial followup
C14: 2.06 - added due to followup (4.12) and reverse
followup values (0.00)
Move generation values C14 to 24.87
Dan