Subject: [computer-go] Another odd seki
There is a seki in the lower left of the position below:
1 2 3 4 5 6 7 8 9
A - O X X - X - - -
B X O X X X X X - X
C - O O X X - X X -
D O O O O X X X X X
E X X O - O X - X O
F - X X O O O X X O
G O X X X O X X O -
H O O X X O X O - O
J - X - X O
Valkyria correctly behaves as if this is seki. It actually does not
now it is seki explicitely, but it prunes all moves that would break
the seki.
The principle to do this as simple as possible is thus not actually to
identify seki in general but to find simple rules that prunes bad
I have thought about this kind of thing a bit, but it's hard to
formulate a general solution. What happens is when you prohibit
certain 'bad' moves is that you slant the result in favour of the side
with more 'bad' moves. This gets to be a problem in situations where
there are few moves to
There is a seki in the lower left of the position below:
1 2 3 4 5 6 7 8 9
A - O X X - X - - -
B X O X X X X X - X
C - O O X X - X X -
D O O O O X X X X X
E X X O - O X - X O
F - X X O O O X X O
G O X X X O X X O -
H O O X X O X O - O
J - X - X O O O O -
It is obvious that X cannot
