[gnugo-devel] OWL failure !?

[md]

1/
In this final position ,black never plays 133 =K13 (or L13) despite the fact
that there is a lot of matching patterns.
(at least for K13).

GG invoked with --T first shows  the H16 dragon as dead(green)  but OWL does
rescucite it .

When we make a trace of OWL's thinkings , we get this variation

 Pattern A1001b found at K14 with value 50
          Trying black K14. Escape = 2. Current stack: B:K13 W:M13 B:M12
W:N13 B:K14  (variation 6)
Variation 6: ALIVE (escaped)

this conclusion of course is wrong.

2/ If we consider the previous white move : 132 white M11 , we can help
GNUGo with this kind of pattern which makes it to play 132 M13

Pattern EC221

?oOoo
Xo.o?
o*.oO
O.X??

:8,C

of course , this does not solve the OWL failure .
I would have a question about whether 132 should be correctly played if OWL
could solve 133 .

If someone has a pattern solution for the 133 move , i would be interested
to know about it too.
Thanks
md.

(;RU[Japanese]SZ[19]HA[0]KM[5.5]
;B[dc]
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)