I am sure there are other more subtle ways to go about it but this seems about as fast as I can make it for a general brute-force solution (0.11s)
This one seems to work for the large test case, too, although it is not a general solution [for size(p,1)>100 it only tests corner points].
Return the largest number that is adjacent to a zero
Inner product of two vectors
Insert zeros into vector
Chezz_015 : Simplified chess
Checkerz_000 Kamikazi Kings
Cubic Integer Constrained Solution
Kaggle: Reverse Game of Life - Create Isle prior State
Hamming Weight - Fast
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