Task: fill in the final grid correctly.the puzzle

Hint, if it wasn't obvious enough already:

The title and shape of the grids should be suggestive of something. Also, the line weights are relevant.

  • $\begingroup$ Are the thicknesses of the boxes relevant? $\endgroup$
    – Someone
    Commented May 15 at 0:19
  • $\begingroup$ @Someone Yes. Check the hint. $\endgroup$
    – Auride
    Commented May 15 at 1:47
  • 1
    $\begingroup$ If the bottom right of grid 3 was shaded, I think I'd have the solution, but since it isn't, I'm running into problems. $\endgroup$ Commented May 15 at 13:17
  • $\begingroup$ @AxiomaticSystem Damn, the puzzle was somehow messed up despite me proofreading it at least 4 times. I've fixed it now. $\endgroup$
    – Auride
    Commented May 16 at 11:47

1 Answer 1


The final grid should be shaded

in the central cell and the four edge cells


the four grids are groups of binary digits.
If the 8-point-lined grid displays 8's, the 4-point-lined grid displays 4's, the 2-point-lined displays 2's and the 1-point-lined grid displays 1's, then combining the four grids yields the numbers:

2 7 6
9 5 1
4 3 8

which form a magic square!

  • $\begingroup$ it took me a while, but i get it now. whew! +1 $\endgroup$
    – JLee
    Commented May 16 at 12:08
  • $\begingroup$ The line weights aren't actually proportional, but you got the implied message. Good job! $\endgroup$
    – Auride
    Commented May 16 at 12:36

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