Search: supworld:5_dots
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| BP138 |
| No dot well within the convex hull vs. at least one dot well within the convex hull. |
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| BP334 |
| Odd number of dots vs. even number of dots. |
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CROSSREFS
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See BP334 for a version of the same idea, but using arbitrary shapes instead of dots.
Adjacent-numbered pages:
BP329 BP330 BP331 BP332 BP333 * BP335 BP336 BP337 BP338 BP339
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KEYWORD
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precise, allsorted, number, math, left-narrow, right-narrow, right-null, help, traditional, preciseworld
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CONCEPT
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even_odd (info | search)
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WORLD
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dots [smaller | same | bigger]
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AUTHOR
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Aaron David Fairbanks
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| BP384 |
| Square number of dots vs. non-square number of dots. |
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COMMENTS
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All examples in this Problem are a collection of dots.
An equivalent solution is "Dots can be arranged into a square lattice whose convex hull is a square vs. not so". - Leo Crabbe, Aug 01 2020 |
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CROSSREFS
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Adjacent-numbered pages:
BP379 BP380 BP381 BP382 BP383 * BP385 BP386 BP387 BP388 BP389
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EXAMPLE
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A single dot fits because 1 = 1*1.
A pair of dots does not fit because there is no integer x such that 2 = x*x. |
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KEYWORD
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nice, precise, allsorted, number, math, left-narrow, left-null, help, traditional, preciseworld, collection
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CONCEPT
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square_number (info | search)
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WORLD
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dots [smaller | same | bigger]
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AUTHOR
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Jago Collins
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| BP541 |
| Bongard Problems vs. anything else. |
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| | |  | blllmam | cat | nongard |
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