test 8 is not a symmetric matrix, is it a projector matrix?
Sorry about that one. I've removed that test case. I don't know how long it will take for the re-scoring to propagate, though.
Rotate a Matrix by 90 degrees
Circular Primes (based on Project Euler, problem 35)
Largest Twin Primes
Replacing a row
Find my daddy long leg (No 's')
Fill-a-pix - Solution Checker
Mechanical Advantage of a Gear Train
Self-similarity 1 - Every other term
Rumis Scorer 4
Self-similarity 3 - Every other pair of terms
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