Message from discussion no 4 on a plane (3*3*3 puzzle)

Path: sparky!uunet!mcsun!sunic!dkuug!diku!torbenm
From: torb...@diku.dk (Torben AEgidius Mogensen)
Newsgroups: rec.puzzles
Subject: Re: no 4 on a plane (3*3*3 puzzle)
Keywords: no-3-in-line, 3*3*3 puzzle
Message-ID: <1992Nov27.161606.1900@odin.diku.dk>
Date: 27 Nov 92 16:16:06 GMT
References: <ByDs66.D4G@hermes.hrz.uni-bielefeld.de>
Sender: torb...@freke.diku.dk
Organization: Department of Computer Science, U of Copenhagen
Lines: 18

sil...@math25.mathematik.uni-bielefeld.de (Torsten Sillke) writes:

>On the 2*2*2 grid you can take 5 points, such that no 4 points lay on a
>plane. The only possibility (up to symmetry) is:

>        o .      . o
>        o o      o .

>Can you find the only possibility to take 8 points in the 3*3*3 grid
>with the same property?

How about

. o .	o . .	. . o
. . o	. . .	o . .
o . .	. . o	. o .

	Torben Mogensen (torb...@diku.dk)