The On-Line Encyclopedia of Bongard Problems

Search: author:Aaron David Fairbanks

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BP527

Each black filled circle belongs to exactly one large circle outline vs. not so.

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	COMMENTS	`On the left, circles define a partition of the dots.`
	CROSSREFS	`Adjacent-numbered pages: BP522 BP523 BP524 BP525 BP526 * BP528 BP529 BP530 BP531 BP532`
	KEYWORD	`precise, allsorted, traditional`
	CONCEPT	`circle (info \| search),` `exists_one (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP525

Some zoomed-in (cropped) version of an image of a hollow circle vs. not so.

(edit; present; nest [left/right]; search; history)

	CROSSREFS	`Adjacent-numbered pages: BP520 BP521 BP522 BP523 BP524 * BP526 BP527 BP528 BP529 BP530`
	KEYWORD	`stretch, boundingbox, left-null, traditional, left-couldbe`
	CONCEPT	`circle (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP524

Same objects are shown lined up in both "universes" vs. the two "universes" are not aligned.

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	COMMENTS	All examples are black and white images, partitioned by lines such that crossing a line switches the background color and the foreground color. (Sometimes it is not clear which is "background" and which is "foreground".) In the space between two dividing lines, there is a black and white scene; the outlines of the shapes are curves dividing black from white. Images sorted left are such that each outline-curve present in a scene that comes in contact non-tangentially with a dividing line continues across the dividing line, across which the black and white sides of it switch. `Examples (especially right) usually have ambiguity to some degree; depending on how a person reads the images, dividing lines may be confused for curves within a scene.`
	CROSSREFS	`Adjacent-numbered pages: BP519 BP520 BP521 BP522 BP523 * BP525 BP526 BP527 BP528 BP529`
	KEYWORD	`fuzzy, unwordable, anticomputer, traditional, blackwhiteinvariant`
	AUTHOR	`Aaron David Fairbanks`

BP523

Same amount of black in any vertical slice vs. varying amounts of black in vertical slices.

(edit; present; nest [left/right]; search; history)

	CROSSREFS	`Adjacent-numbered pages: BP518 BP519 BP520 BP521 BP522 * BP524 BP525 BP526 BP527 BP528`
	KEYWORD	`nice, precise, rotate, stretch, unstable, perfect, pixelperfect, traditional`
	WORLD	`shapes_can_touch_box [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

BP505

Number indicated on number line conceptually related to image shown below vs. not so.

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	COMMENTS	`This is the "easier version" of BP801.` `All numbers on the left are canonical mathematical constants, i.e. there are no totally arbitrary ratios, with images below featuring those ratios.`
	CROSSREFS	`Adjacent-numbered pages: BP500 BP501 BP502 BP503 BP504 * BP506 BP507 BP508 BP509 BP510`
	KEYWORD	`fuzzy, math`
	CONCEPT	`number (info \| search),` `ratio (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP383

When the shape is removed from the dots, the dots give enough information to place the shape back where it was vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP378 BP379 BP380 BP381 BP382 * BP384 BP385 BP386 BP387 BP388`
	KEYWORD	`hard, nice, traditional`
	CONCEPT	`imagined_line_or_curve (info \| search),` `imagined_entity (info \| search),` `convey_enough_information (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP382

No knot (unknot) vs. knot.

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	COMMENTS	`To hint at the solution, left examples can be arranged in a sequence to show the unknot tying itself.`
	CROSSREFS	`Adjacent-numbered pages: BP377 BP378 BP379 BP380 BP381 * BP383 BP384 BP385 BP386 BP387`
	KEYWORD	`nice, math, anticomputer, help, traditional`
	CONCEPT	`knot (info \| search),` `topological_transformation (info \| search)`
	WORLD	`knot [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

BP381

Adding the top two waves yields the bottom wave vs. not so.

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	COMMENTS	`This problem is about wave interference.`
	CROSSREFS	`Adjacent-numbered pages: BP376 BP377 BP378 BP379 BP380 * BP382 BP383 BP384 BP385 BP386`
	KEYWORD	`nice, notso, math, orderedtriplet, traditional`
	CONCEPT	`addition (info \| search),` `wave (info \| search),` `2_inputs_1_output (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP380

The completed version of the collection indicated by the objects is finite vs. the completed version of the collection indicated by the objects is infinite.

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	COMMENTS	`Related to BP870 and BP792.` `An example with clusters of perfect numbers of dots would be sorted ambiguously, for the time being. Unfortunately the 3rd smallest perfect number is 496. - Leo Crabbe, Oct 18 2024`
	CROSSREFS	`Adjacent-numbered pages: BP375 BP376 BP377 BP378 BP379 * BP381 BP382 BP383 BP384 BP385`
	KEYWORD	`math, creativeexamples, traditional, rules, miniworlds, collection`
	CONCEPT	`finite_infinite (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP379

Complete finite collection vs. incomplete finite collection.

(edit; present; nest [left/right]; search; history)

	COMMENTS	`Related to BP380 and BP792.`
	CROSSREFS	`Adjacent-numbered pages: BP374 BP375 BP376 BP377 BP378 * BP380 BP381 BP382 BP383 BP384`
	KEYWORD	`nice, abstract, traditional, rules, miniworlds, collection`
	CONCEPT	`completeness (info \| search)`
	WORLD	`collection_of_objects_same_type [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

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