[Computer-go] double ko seki on KGS
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Hiroshi Yamashita
Oct 21, 2012, 5:38:40 AM10/21/12
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Hi,
I saw an interesting game.
http://files.gokgs.com/games/2012/10/21/globax-AyaMC2.sgf
In 337th move, W passed, but B took ko in double ko seki.
And in 339th move, W had two forbidden ko points by super-ko rule.
And B won finally.
Is double ko seki not available on super-ko rule?
Regards,
Hiroshi Yamashita
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I saw an interesting game.
http://files.gokgs.com/games/2012/10/21/globax-AyaMC2.sgf
In 337th move, W passed, but B took ko in double ko seki.
And in 339th move, W had two forbidden ko points by super-ko rule.
And B won finally.
Is double ko seki not available on super-ko rule?
Regards,
Hiroshi Yamashita
_______________________________________________
Computer-go mailing list
Compu...@dvandva.org
http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
Robert Jasiek
Oct 21, 2012, 7:04:21 AM10/21/12
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On 21.10.2012 11:38, Hiroshi Yamashita wrote:
> Is double ko seki not available on super-ko rule?
Coexistence in double ko, which starts from one of its stable states, is
> Is double ko seki not available on super-ko rule?
possible under Positional Superko, Situational Superko and Natural
Situation Superko, but the possible and the correct move sequences vary.
http://home.snafu.de/jasiek/e3.html
http://home.snafu.de/jasiek/superko.html
The existence of further kos on the board can sometimes (not always)
make a double ko instable.
--
robert jasiek
Erik van der Werf
Oct 21, 2012, 7:14:31 AM10/21/12
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On Sun, Oct 21, 2012 at 11:38 AM, Hiroshi Yamashita <y...@bd.mbn.or.jp> wrote:
> Hi,
>
> I saw an interesting game.
>
> http://files.gokgs.com/games/2012/10/21/globax-AyaMC2.sgf
> In 337th move, W passed, but B took ko in double ko seki.
> And in 339th move, W had two forbidden ko points by super-ko rule.
> And B won finally.
>
> Is double ko seki not available on super-ko rule?
Of course double ko seki is available; White's pass here was simply a
> Hi,
>
> I saw an interesting game.
>
> http://files.gokgs.com/games/2012/10/21/globax-AyaMC2.sgf
> In 337th move, W passed, but B took ko in double ko seki.
> And in 339th move, W had two forbidden ko points by super-ko rule.
> And B won finally.
>
> Is double ko seki not available on super-ko rule?
blunder due to the positional superko rule.
Erik
Mark Boon
Oct 22, 2012, 1:46:02 PM10/22/12
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On Oct 20, 2012, at 11:38 PM, Hiroshi Yamashita wrote:
Is double ko seki not available on super-ko rule?
Double-ko is available, but it's not a stable situation like a dead group or a living group. So it needs to be resolved before passing.
Mark
Mark Boon
Oct 22, 2012, 1:50:34 PM10/22/12
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Oops, I misunderstood, so forget that remark :)
Robert Jasiek
Oct 22, 2012, 1:54:03 PM10/22/12
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On 22.10.2012 19:46, Mark Boon wrote:
> it needs to be resolved before passing.
Under which rules other than greedy ancient?
> it needs to be resolved before passing.
--
robert jasiek
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