The On-Line Encyclopedia of Bongard Problems

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BP193

Ghost triangle vs. Ghost rectangle.

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	CROSSREFS	`Adjacent-numbered pages: BP188 BP189 BP190 BP191 BP192 * BP194 BP195 BP196 BP197 BP198`
	KEYWORD	`nice, anticomputer, traditional, dithering`
	CONCEPT	`absence_as_presence (info \| search),` `completed_out_of_box (info \| search),` `ghost (info \| search),` `number (info \| search),` `imagined_shape (info \| search),` `imagined_entity (info \| search),` `triangle (info \| search)`
	AUTHOR	`Harry E. Foundalis`

BP195

Bottom object in front of top objects in 3-D vs. bottom object behind top objects in 3-D.

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	CROSSREFS	`Adjacent-numbered pages: BP190 BP191 BP192 BP193 BP194 * BP196 BP197 BP198 BP199 BP200`
	KEYWORD	`experimental, dithering`
	CONCEPT	`3d_front_back (info \| search),` `3d_depth (info \| search),` `same_shape (info \| search),` `same (info \| search)`
	AUTHOR	`Harry E. Foundalis`

BP196

Light-colored texture vs. dark-colored texture.

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	COMMENTS	`More white than black vs. more black than white.`
	CROSSREFS	`See BP211 for a version of this Problem that includes as examples more general kinds of images than uniform textures.` `Adjacent-numbered pages: BP191 BP192 BP193 BP194 BP195 * BP197 BP198 BP199 BP200 BP201`
	KEYWORD	`easy, nice, spectrum, dual, blackwhite, traditional, continuous, viceversa, dithering`
	CONCEPT	`light_dark (info \| search),` `texture_area (info \| search),` `texture (info \| search)`
	WORLD	`[smaller \| same \| bigger] zoom in left \| zoom in right`
	AUTHOR	`Harry E. Foundalis`

BP225

Low contrast (no fully black region) vs. high contrast (at least one fully black region).

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	CROSSREFS	`Adjacent-numbered pages: BP220 BP221 BP222 BP223 BP224 * BP226 BP227 BP228 BP229 BP230`
	KEYWORD	`nice, traditional, dithering`
	CONCEPT	`contrast (info \| search)`
	AUTHOR	`Giuseppe Insana`

BP331

Image of something 2-D vs. image of something 3-D.

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	CROSSREFS	`Adjacent-numbered pages: BP326 BP327 BP328 BP329 BP330 * BP332 BP333 BP334 BP335 BP336`
	KEYWORD	`abstract, anticomputer, collective, traditional, dithering`
	CONCEPT	`dimensionality (info \| search),` `3d_solid (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP373

Intersection (logical conjunction) vs. union (logical disjunction).

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	CROSSREFS	`Adjacent-numbered pages: BP368 BP369 BP370 BP371 BP372 * BP374 BP375 BP376 BP377 BP378`
	KEYWORD	`abstract, anticomputer, concept, creativeexamples, left-narrow, right-narrow, contributepairs, traditional, miniworlds, dithering`
	CONCEPT	`set_intersection (info \| search),` `set_union (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP393

Correct vs. incorrect.

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	COMMENTS	`"True" vs. "false."`
	CROSSREFS	`Adjacent-numbered pages: BP388 BP389 BP390 BP391 BP392 * BP394 BP395 BP396 BP397 BP398`
	KEYWORD	`nice, fuzzy, abstract, collective, contributepairs, traditional, rules, miniworlds, dithering`
	CONCEPT	`categorization (info \| search),` `true_false (info \| search)`
	AUTHOR	`Jago Collins`

BP394

For each colored square only, there exists a path starting on it that covers each square of the figure exactly once vs. there is no path that starts on a colored square and covers each square of the figure exactly once.

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	CROSSREFS	`Adjacent-numbered pages: BP389 BP390 BP391 BP392 BP393 * BP395 BP396 BP397 BP398 BP399`
	KEYWORD	`hard, nice, solved, traditional, dithering, left-listable, right-listable`
	CONCEPT	`existence (info \| search),` `path (info \| search),` `imagined_line_or_curve (info \| search),` `imagined_entity (info \| search)`
	AUTHOR	`Jago Collins`

BP812

Aesthetically pleasing vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP807 BP808 BP809 BP810 BP811 * BP813 BP814 BP815 BP816 BP817`
	KEYWORD	`easy, abstract, notso, stretch, anticomputer, subjective, invalid, experimental, funny, dithering`
	AUTHOR	`Aaron David Fairbanks`

BP813

Representations of natural mathematical objects vs. representations of arbitrary objects.

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	COMMENTS	`This is a very inexact definition. Some left examples arguably should be placed on the right, since the particular way they are represented is arbitrary--the Platonic solids EX6730 and primes EX6734 especially, as these show arbitrary placement and arrangement of objects. Furthermore if arbitrary representations are allowed one cannot be sure for example the right hand drawing of random numbers EX6740 does not represent "numbers" in general. Still this Bongard Problem has been solved by people.`
	CROSSREFS	`Adjacent-numbered pages: BP808 BP809 BP810 BP811 BP812 * BP814 BP815 BP816 BP817 BP818`
	KEYWORD	`fuzzy, abstract, stretch, math, solved, collective, experimental, dithering`
	AUTHOR	`Aaron David Fairbanks`

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