Are you sure about the first rule? It doesn't seem necessary according to https://oeis.org/A014575.
The problem is really fun.
Since I created the problem series and want the Functions I badge, I thought I'd provide the solution that incorporates vampire_factor and are_fangs. Not a great score, but readable!
Sorry, I mean the Magic Numbers badge.
Connect Four Win Checker
We love vectorized solutions. Problem 1 : remove the row average.
CONVERT TAN TO SIN
Is it a number?
Divide by 4
Outer product of multiple vectors
Negation the hard way
Find all vampire fangs
Multivariate polynomials - overload multiplication
Product of two multivariate polynomials
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