Re: [Computer-go] Congratulations to Crazy Stone!

2013-12-10 Thread Stefan Kaitschick
What happens with 2 bent fours? You should be able to save one of them. On Mon, Dec 9, 2013 at 10:01 PM, Hiroshi Yamashita y...@bd.mbn.or.jp wrote: In round 3 CrazyStone vs. Aya, probably Aya was expecting W to play L12 or N12, if B's corner was not 100% dead in the playouts. It seems a bug in

Re: [Computer-go] Congratulations to Crazy Stone!

2013-12-10 Thread Erik van der Werf
Does it matter? You just remove ko threaths. The problem is with unremovable ko threaths. Op 10 dec. 2013 09:33 schreef Stefan Kaitschick stefan.kaitsch...@hamburg.de: What happens with 2 bent fours? You should be able to save one of them. On Mon, Dec 9, 2013 at 10:01 PM, Hiroshi Yamashita

Re: [Computer-go] Congratulations to Crazy Stone!

2013-12-10 Thread Petri Pitkanen
I am afraid can depend on rule set in use. I guess that under Japanese rules bent four is dead by definition. But having two of them does not really change anything as attacker can choose to fight then after each other. Petri 2013/12/10 Stefan Kaitschick stefan.kaitsch...@hamburg.de What

Re: [Computer-go] Congratulations to Crazy Stone!

2013-12-10 Thread Darren Cook
I am afraid can depend on rule set in use. I guess that under Japanese rules bent four is dead by definition. If you had four bent-fours, one in each corner, all dead in Japanese rules for the same colour, *and* four un-removeable ko threats, is that the position that will give the biggest

Re: [Computer-go] Congratulations to Crazy Stone!

2013-12-10 Thread Stefan Kaitschick
Oops, your so right. The defender has no ko threat in the 2nd bent four. I didnt think that through. Stefan On Tue, Dec 10, 2013 at 9:46 AM, Petri Pitkanen petri.t.pitka...@gmail.com wrote: I am afraid can depend on rule set in use. I guess that under Japanese rules bent four is dead by

Re: [Computer-go] Congratulations to Crazy Stone!

2013-12-10 Thread Aja Huang
W can't play N12 if B has more than one external-lib since B will live unconditionally, as the attached example shows. Aja 2013/12/9 Hiroshi Yamashita y...@bd.mbn.or.jp In round 3 CrazyStone vs. Aya, probably Aya was expecting W to play L12 or N12, if B's corner was not 100% dead in the

[Computer-go] Happy Holidays

2013-12-10 Thread Joshua Shriver
Good evening, I realise, the Go forum perhaps, hits MANY religous beliefs. I respect and honor them all. Personally, I'm Christian, Catholic to make fine point. I'm truly happy and honored that Don Daily made me head of CGOS. Given the recent change, I hope you all have made a

[Computer-go] Happy Holidays Pt 2

2013-12-10 Thread Joshua Shriver
I run, happily the CGOS server for free... alongside the OICS server. This is the only one time of year that I ask for somerthing :) I'm a sucker for Christmnas cards.,... I do realise Go span cultural and spiritual realms ... So given the holiday season. any card wil do... doesn't have

Re: [Computer-go] Congratulations to Crazy Stone!

2013-12-10 Thread Aja Huang
2013/12/10 Darren Cook dar...@dcook.org If you had four bent-fours, one in each corner, all dead in Japanese rules for the same colour, *and* four un-removeable ko threats, is that the position that will give the biggest difference in score between Japanese and the other scoring methods?

Re: [Computer-go] Congratulations to Crazy Stone!

2013-12-10 Thread Aja Huang
I made a test case with four bent-fours and seki. To break the seki at center, at least one of the bent fours must be practically solved. Would be interesting to see a Go program's behavior in this position. :) Aja 2013/12/10 Darren Cook dar...@dcook.org I am afraid can depend on rule set in

[Computer-go] [O-T] Arimaa

2013-12-10 Thread Joshua Shriver
Curious has anyone else here been infected with the Arimaa bug? I'm an avid chess guy, as well as Go. Hence why I'm here :) But from a playing point of view, I find myself playing Arimaa so much more, and anxious to develop for it. -Josh ___