[Computer-go] Board Sizes
remi.coulom at free.fr
Mon Jan 7 06:07:17 PST 2013
On 01/07/2013 03:02 PM, Vlad Dumitrescu wrote:
> On Mon, Jan 7, 2013 at 2:51 PM, Don Dailey <dailey.don at gmail.com
> <mailto:dailey.don at gmail.com>> wrote:
> 2013/1/7 Don Dailey <dailey.don at gmail.com
> <mailto: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.
But you can't get a cross-cut in the center with mirror go.
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