RE: computer-go: Live or Die

["Jeff Massung" <jmassung@xxxxxxxxxxx>]

> > Could someone give me some examples of eyes that are more than 1 space 
> in
> > size?
> >
> > Thanks.
> > Jeff
>
> x x x
> x . x
> x . x
>
> Tim
Okay, I think I might be misunderstanding eyes then.  I thought the 
definition of an eye, was an enclosed territory where either (a) the enemy 
cannot enter or (b) it is useless for the enemy to try and enter.

Under that premise, I can understand how this setup is "eyes":

xxxxxxx
xooooox
xo.o.ox
xooooox
xxxxxxx

because 'x' cannot enter either territory.

However, I don't understand how your setup is an "eye":

xxx
x.x
x.x

Because 'o' could still capture

ooooo    ooooo    ooooo    ooooo
oxxxo    oxxxo    oxxxo    o...o
ox.xo => oxoxo => ox.xo => o.o.o
ox.xo    ox.xo    oxxxo    o...o

If my definition of an "eye" is incorrect, could someone please correct it.  
But if it is right, I need some examples of multiple space eyes where (b) is 
true (useless to try).

Thanks.

Jeff

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