The On-Line Encyclopedia of Bongard Problems

Search: author:Giuseppe Insana

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Border of black rectangle is incomplete vs. border of black rectangle is complete.

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	CROSSREFS	`Adjacent-numbered pages: BP217 BP218 BP219 BP220 BP221 * BP223 BP224 BP225 BP226 BP227`
	KEYWORD	`traditional`
	CONCEPT	`imperfection_small (info \| search)`
	AUTHOR	`Giuseppe Insana`

No small square at the end of any curve vs. curve ends at a small square.

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	CROSSREFS	`Adjacent-numbered pages: BP216 BP217 BP218 BP219 BP220 * BP222 BP223 BP224 BP225 BP226`
	KEYWORD	`less, traditional`
	CONCEPT	`existence (info \| search),` `curve_texture (info \| search),` `texture (info \| search)`
	AUTHOR	`Giuseppe Insana`

One cluster vs. two clusters.

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	CROSSREFS	`Adjacent-numbered pages: BP215 BP216 BP217 BP218 BP219 * BP221 BP222 BP223 BP224 BP225`
	KEYWORD	`traditional`
	CONCEPT	`number (info \| search),` `feature_cluster (info \| search),` `cluster_of_one (info \| search),` `cluster (info \| search),` `one (info \| search),` `two (info \| search)`
	AUTHOR	`Giuseppe Insana`

Parallel curves vs. non-parallel curves.

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	CROSSREFS	`Adjacent-numbered pages: BP214 BP215 BP216 BP217 BP218 * BP220 BP221 BP222 BP223 BP224`
	KEYWORD	`traditional`
	CONCEPT	`all (info \| search)`
	AUTHOR	`Giuseppe Insana`

Something is missing vs. an extra copy of something is added.

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	COMMENTS	`A generalization of Hofstadter's BP148.`
	CROSSREFS	`Adjacent-numbered pages: BP213 BP214 BP215 BP216 BP217 * BP219 BP220 BP221 BP222 BP223`
	KEYWORD	`nice, abstract, traditional`
	CONCEPT	`missing_part (info \| search),` `regular_irregular_change (info \| search),` `extra_part (info \| search)`
	AUTHOR	`Giuseppe Insana`

Totally black lines vs. lines with white specks.

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	CROSSREFS	`Adjacent-numbered pages: BP212 BP213 BP214 BP215 BP216 * BP218 BP219 BP220 BP221 BP222`
	KEYWORD	`perfect, pixelperfect`
	CONCEPT	`curve_texture (info \| search),` `texture (info \| search)`
	AUTHOR	`Giuseppe Insana`

Ink tip (non-homogeneous line) vs. Marker tip (homogeneous line).

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	CROSSREFS	`Adjacent-numbered pages: BP211 BP212 BP213 BP214 BP215 * BP217 BP218 BP219 BP220 BP221`
	KEYWORD	`perfect`
	CONCEPT	`line_or_curve_endpoint (info \| search),` `curve_texture (info \| search),` `texture (info \| search)`
	AUTHOR	`Giuseppe Insana`

Mouth concave upwards vs. Mouth convex upwards.

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	CROSSREFS	`Adjacent-numbered pages: BP210 BP211 BP212 BP213 BP214 * BP216 BP217 BP218 BP219 BP220`
	CONCEPT	`concave_convex_region (info \| search),` `downward_upward (info \| search),` `line_absolute_direction (info \| search),` `absolute_direction (info \| search),` `direction (info \| search)`
	AUTHOR	`Giuseppe Insana`

Smiley face vs. not a smiley face.

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	CROSSREFS	`Adjacent-numbered pages: BP209 BP210 BP211 BP212 BP213 * BP215 BP216 BP217 BP218 BP219`
	KEYWORD	`less, culture`
	CONCEPT	`specific_style (info \| search),` `specificity (info \| search)`
	AUTHOR	`Giuseppe Insana`

The tightest-curved section, out of all sections of curve that make a complete turn (360 degrees), contains an x-crossing point vs. not so.

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	COMMENTS	`All examples are connected smooth curves allowed to self-intersect that must curve in only one direction (starting at one end, either clockwise or counter-clockwise), i.e. there is no inflection point.`
	CROSSREFS	`Adjacent-numbered pages: BP208 BP209 BP210 BP211 BP212 * BP214 BP215 BP216 BP217 BP218`
	KEYWORD	`less, convoluted, perfect, traditional`
	CONCEPT	`x-crossing (info \| search)`
	AUTHOR	`Giuseppe Insana`

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