Stage: 3 Challenge Level: 
This month's poster is based on
the problem
Power Mad!
The October poster is available here
as a .pdf, ready to be printed.
The poster should automatically
open in your browser.
This poster is also available as
an image file by clicking
here.
Published .
Copyright © 2007. University of Cambridge. All rights reserved.
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email: nrich@damtp.cam.ac.uk