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First Mini-Challenge

posted 17 Mar 2013, 07:06 by Sam Dolan   [ updated 17 Mar 2013, 07:07 ]
To celebrate the official launch of the Challenge at Discovery Night, I have issued the very first Mini-Challenge.

This Mini-Challenge problem is very easy to state, but rather more difficult to solve:

On Monday I will be exploring this problem with visitors to Discovery Night. If you can't be there, you can still take part on Twitter @pi3challenge.