[Computer-go] Board Sizes

Vlad Dumitrescu vladdu55 at gmail.com
Mon Jan 7 06:13:02 PST 2013

You're right, Aja's example is working and the capture is for two stones.
At least I got the principle right :-)

On Mon, Jan 7, 2013 at 3:07 PM, Rémi Coulom <remi.coulom at free.fr> wrote:

>  On 01/07/2013 03:02 PM, Vlad Dumitrescu wrote:
> Hi!
> On Mon, Jan 7, 2013 at 2:51 PM, Don Dailey <dailey.don at gmail.com> wrote:
>>   2013/1/7 Don Dailey <dailey.don at gmail.com>
>>>> I have a question concerning a related question,  mirror go.    On an
>>>> even board the second player can presumably just mirror the opponent and
>>>> never lose but I am not sure I buy that.   I am a very weak player myself
>>>> but is it true that cannot force your opponent into a bad move if he
>>>> mirrors you?     And if mirror go is a valid way to stay even couldn't a
>>>> pro just sacrifice something in the center to break the symmetry?
>>> I'm talking about even boards,  not odd boards.     I know that odd
>>> boards cannot be mirrored indefinitely.
>  It's easy to come up with a way to force breaking the symmetry: play the
> center as a cross-cut and black then gives atari: if white gives atari too,
> black captures and white cannot do likewise because of the missing captured
> stone. So white is forced to protect the atari and symmetry is broken.
> Black can then get a better position in the center in sente.
>  regards,
> Vlad
> But you can't get a cross-cut in the center with mirror go.
> Rémi
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