test cases imply that the question title should be "spot the square"
I added a rectangular (non-square) test case. Thanks for the note.
This is a good answer. I changed the test suite so that you wouldn't have to deal with logical input matrices. Sorry about that!
This code is referenced in the following blog post: http://blogs.mathworks.com/community/2015/01/19/robot-game-playing-in-matlab-part-2/
Project Euler: Problem 2, Sum of even Fibonacci
Getting logical indexes
How long is the longest prime diagonal?
Remove entire row and column in the matrix containing the input values
Crossing to Kissing - Untangle the Lines
Find the Final State of an Abelian Sandpile
Find the biggest empty box
Beads on a Necklace (Convex Hulls)
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