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.
Most nonzero elements in row
Sum of diagonal of a square matrix
sum of non-primes
03 - Matrix Variables 1
Divisible by 14
Scrabble Scores - 13
Evened up (or not)
Scrabble Scores - 2
Combined Ages 4 - Non-symmetric with multiples, n ≥ 3
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