Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!burl!ulysses!harpo!decvax!cca!ima!inmet!frankr From: frankr@inmet.UUCP Newsgroups: net.games.go Subject: Re: Life and Death problem #6. - (nf) Message-ID: <1090@inmet.UUCP> Date: Sat, 17-Mar-84 05:47:49 EST Article-I.D.: inmet.1090 Posted: Sat Mar 17 05:47:49 1984 Date-Received: Wed, 21-Mar-84 01:32:42 EST Lines: 33 #R:dual:-33900:inmet:20600010:000:1001 inmet!frankr Mar 16 11:41:00 1984 (usenet insecticide) -------------------------------------- White is to play... and live! How? A B C D E F G H J K 10 . . . * . . . . . * 9 . . . . . . . . . . 8 . . . . . . . . . . 7 . . . . . . . . . . 6 . . . . . . . . . . 5 . . . . . . . . . . 4 . @ @ * . . . . . * 3 . . O @ @ @ . . . . 2 O O @ O O @ . . . . 1 . O . O O @ . . . . White = O Black = @ ------------------------------------- This is a cute little problem. White needs to make a second eye but two of the groups it needs to make one at c1 are in atari. I am convinced that white can- not undercut black successfully along the A or B row. This makes the C1 eye critical. C1 doesn't work because black at b3 falsifies the eye. But, if white plays b3, black discovers that even if he plays c1 to capture whites four stones white will be able to play d2, atari!