these ghosts are ridiculously hard to avoid... nice!!!
this solution clears the board (yet it scores worse than a solution that leaves one dot on the board...)
Scoring revised. Did not think possible to clear.
Maintain shape of logical-index mask
String substitution, sub problem to cryptoMath
Compute the dilation of a binary image
Create a Cell array of month-end date strings within a provided date range
GJam 2013 Veterans: Hedge
Make a Pandiagonal Prime Magic Square: 11 x 11
Map all the indices of an Array Indices into a Vector giving Index vs Row and Column
Primes Faster for Large N
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