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- Newsgroups: rec.games.go
- Path: sparky!uunet!mcsun!sun4nl!sci.kun.nl!cs.kun.nl!hansm
- From: hansm@cs.kun.nl (Hans Mulder)
- Subject: Re: Funny problem
- Message-ID: <BzoqJq.MnB@sci.kun.nl>
- Sender: news@sci.kun.nl (News owner)
- Nntp-Posting-Host: zeus.cs.kun.nl
- Organization: University of Nijmegen, The Netherlands
- References: <1992Dec17.152349.20907@irisa.fr> <1992Dec21.211816.22874@pt.com> <1992Dec22.070028.23415@news.mentorg.com> <Bzo44z.DvK@sci.kun.nl> <1992Dec22.200555.2383@news.mentorg.com>
- Date: Tue, 22 Dec 1992 23:57:26 GMT
- Lines: 49
-
- In <1992Dec22.200555.2383@news.mentorg.com> bcannard@hppcb36.mentorg.com (The Human Mi-Go) writes:
- >c is disaster for white. After black turns to the left, the sequence
- >to 7 traps a cutting group in a simple ladder (6 anywhere else lets
- >black out):
-
- >|. . . . . . . . . . . . . . . . . . .|
- >|. . . . . . . . . . . . . . . . . . .|
- >|. . . . . . . 7 6 . . . . . . . . . .|
- >|. . . . . . . 4 5 O . . . . . . . . .|
- >|. . . . # # # 2 3 O . . # . . . . . .|
- >|. . . O O O # O 1 . . O # . . . . . .|
- >|. . . . # O O # # # # # O O . . . . .|
- >|. . . . . . # O O O O O # . . . . . .|
- >|. . . . . . # . . # . . # . . . . . .|
- >|. . . . . . # # # . # # # . . . . . .|
- >|. . . . . . . . . . . . . . . . . . .|
- >|. . . . . . . . . . . . . . . . . . .|
- > -------------------------------------
-
- You're right.
-
- >If White turns South instead, Black forces him into a dead end. White
- >cannot get the extra liberty needed to tennuki, and is forced to return
- >to the north, giving Black the ladder as above.
-
- I'm not convinced:
-
- >|. . . . . . . . . . . . . . . . . . .|
- >|. . . . . . . . . . . . . . . . . . .|
- >|. . . . . . . . . . . . . . . . . . .|
- >|. . . . . . . . . O . . . . . . . . .|
- >|. . . . . . # . . O . . # . . . . . .|
- >|. . . . . . # O . . . O # . . . . . .|
- >|. . . . 1 O O # # # # # O O . . . . .|
- >|. . . . 3 2 # O O O O O # . . . . . .|
- >|. . . . 5 4 # . . # . . # . . . . . .|
- >|. . . 9 8 6 # # # . # # # . . . . . .|
- >|. . . b a 7 . . . . . . . . . . . . .|
- >|. . . . c . . . . . . . . . . . . . .|
- > -------------------------------------
-
- And White has escaped. Black 5 at 6 doesn't work either.
-
- >As far as I can see White is done for.
-
- Yes, but Black 1 in not the solution.
-
- --
- Hans Mulder hansm@cs.kun.nl 1 kyu
-