Tim created another superb solution. The highlights are an elegant center of square's determination using ndgrid. The crux of his method is a convolution for each square not using "same" with an interesting centroid kernel. The comparison between all square convolutions for all rotations utilizes a concise norm metric function. The method should work on non-binary images. The best six matches from the 180x180 upper triangle error array are handily converted into the output format. Thank You Tim for this elegant solution.
Prime factor digits
Remove the air bubbles
Project Euler: Problem 10, Sum of Primes
Replace all zeros and NaNs in a matrix with the string 'error'
Magic - Faro Shuffle
Memory Map File: Access and Update
GJam 2013 Veterans: Hedge
Chezz_000 : Simplified chess
Mastermind II: Solve in 8 or less
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