The best you can do is 2*N+1 holes. You can't achieve this for N < 5.

<Reveal this spoiler or all spoilers in this node or all in this thread>

The proofs involved aren't too complicated so I'll leave those for someone else to fill in. Update: Or not...

<Reveal this spoiler>

- tye        

In reply to Re: Challenge: Box Blackout (solved) by tye
in thread Challenge: Box Blackout by Limbic~Region

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