Saw this idea recently. Wondered how susceptible it would be to a brute force approach.

Given a square grid size N, and a list of numbers ~~2*N**2~~ 2*N, find a fillin (like a crossword), and report the digits in the major diagonal (as an easy proof of solution).

The reference in the spoiler took an hour or two to find the solution. I won't post the solution here, you'll have to do the work yourself.

<Reveal this spoiler or all in this thread>

-QM

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Quantum Mechanics: The dreams stuff is made of

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Cool Uses for Perl