[gnugo-devel] gnugo misses a seki after dame filling.

[Tommi Tuura]

Hello,

I recently played a game against gnugo 3.8 in which it failed to notice
a possibility for forcing a seki after I filled a dame point. Admittedly, 
I did do two undos as black, at moves 151 and 221 (which was the seki 
situation itself).

I think gnugo kinda should have noticed the seki after black's 
move 217 which removes 3rd last liberty of 10-stone group while 
a 5-stone group nearby has a dangerous aji cutting point and there 
is a "dead" wall of three black stones between them. Seki is 
unavoidable after move 219, as far as I can tell.

I have added an sgf file as attachment. The game was played
on default level 10.

best regards,
--
Tommi Tuura
address@hidden

gnugo-seki-miss.sgf
Description: application/go-sgf