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I guess when my parcel arrives all crumbled it's because it was along other 23 parcels instead of 22 and the courier knows his optimal square packing solutions.
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Thanks for posting this, I remember seeing this some time ago but I had lost the link.
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Can someone explain why 83 and 87 can't get any smaller?
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Because the outer perimeter must be a square. 83 and 87 could shrink the outer perimeter in one dimension, but not in both at the same time.
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It is possible they can; it’s not yet proven that the listed packings for 83 and 87 are optimal.
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Which of the blocks do you think you could move to shrink the solution? Or are you thinking of a completely different arrangement?
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They got updated to be smaller this year, so maybe there's still more gains to be had?
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"God is dead and the optimal packing of squares killed him." I will never not think of this meme when looking at these horrors. I see it, but I don't like it. ;)
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This is cool! Something seems broken in the representation for 1850 and 1765, squares are strangely intersecting.

edit: Or maybe something wrong with the way my browser (brave) is rendering it.

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I am not a mathematician. Why can a square of s = N not usually fit N * N unit squares? For example S = 4, one would naively (I guess) think it could fit 16 unit squares (4 * 4), but if I’m reading the above correct the actual solution is 15 (with what looks like a unit-square-sized space left over). Same for S = 5, and S = 6, but not for S = 2, which fits the expected 4 unit squares.
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They've just excluded square numbers because (as you noted) the solution is obvious. Except 4, for some reason.
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