| Life In 19x19 http://lifein19x19.com/ |
|
| James Davies - life and death - definition + rules http://lifein19x19.com/viewtopic.php?f=45&t=15663 |
Page 1 of 1 |
| Author: | RobertJasiek [ Thu Apr 26, 2018 8:59 am ] |
| Post subject: | James Davies - life and death - definition + rules |
References: forum/viewtopic.php?p=225367#p225367 forum/viewtopic.php?p=230291#p230291 "Stones are 'alive' if they cannot be captured." is very and fundamentally wrong. Formal definitions are here: http://home.snafu.de/jasiek/j2003.html http://home.snafu.de/jasiek/wagcmod.html http://home.snafu.de/jasiek/sj.html http://ljrg.eu5.net/ Mathematicap Go Endgames, chapter B.2 Olmsted's rules in The Structure of Go and The Rationalisation of Go In particular note that normal go has three types of capturability-life: uncapturable, capturable-1, capturable-2. See also http://home.snafu.de/jasiek/j2003com.html http://home.snafu.de/jasiek/j1989c.html http://home.snafu.de/jasiek/wagcflaw.html |
|
| Author: | hyperpape [ Thu Apr 26, 2018 10:05 am ] |
| Post subject: | Re: James Davies - life and death - definition + rules |
Do any of the links directly address the definition that stones are alive iff they cannot be captured? I see that the 2003 Japanese rules state a different definition, but does not seem to state why the difference is present or in what situations the one definition gives incorrect results. |
|
| Author: | RobertJasiek [ Thu Apr 26, 2018 10:25 am ] |
| Post subject: | Re: James Davies - life and death - definition + rules |
See the examples referred to by the other links. The most basic shape class: eyespace with capturable-1 (live) stones inside. To be learnt before snapback. For answers to your other questions, do read the linked commentaries. |
|
| Page 1 of 1 | All times are UTC - 8 hours [ DST ] |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|