Path: utzoo!attcan!uunet!munnari.oz.au!uhccux!ames!ucsd!usc!venera.isi.edu!lpress
From: lpress@venera.isi.edu (Laurence I. Press)
Newsgroups: comp.misc
Subject: Tic-Tac-Toe algorithm?
Message-ID: <13742@venera.isi.edu>
Date: 2 Jun 90 04:39:32 GMT
Reply-To: lpress@venera.isi.edu (Laurence I. Press)
Organization: USC-Information Sciences Institute
Lines: 11

I recall seeing a very simple algorithm for playing optimal tic-tac-toe
which was based on merely doing arithmetic on the values of the cells
when arranged as follows:

1 2 3
4 5 6
7 8 9

Does anyone know what the trick is (I can't remember)?

Lar