Rick Measham wrote:

>     I have finally managed to find time to send you this postcard. I had 
> Martin take a shot of one of the amazing things we've found on 
> Betelguse-IV. One that I'm sure you, with your love of games theory, 
> will love. It appears to be a form of 4 dimensional tic-tac-toe.

Having played a bunch of 3-D, 4-D, 5-D tic-tac-toe in high school
several eons ago, I'll just mention that 4x4x4x... is a much better
game than 3x3x3....  The 3x3x... game is won by moving into the center
and (as I remember) you can then force a win.  4x4x4x... does not have
that problem (the center is diffuse).

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