The On-Line Encyclopedia of Bongard Problems

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Impossible to realize in 3D space vs. not so.

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	COMMENTS	`Each unit is to be imagined as a flat rigid rod/hoop/triangle/etc.`
	REFERENCE	`https://en.wikipedia.org/wiki/Borromean_rings`
	CROSSREFS	`Similar to BP252.` `Adjacent-numbered pages: BP1128 BP1129 BP1130 BP1131 BP1132 * BP1134 BP1135 BP1136 BP1137 BP1138`
	KEYWORD	`precise`
	CONCEPT	`rigidity (info \| search),` `impossible (info \| search)`
	AUTHOR	`Leo Crabbe`

Each component can be assigned its own layer in the arrangement vs. there is no equivalent way of dividing the arrangement into layers.

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

	COMMENTS	`Put differently, if the examples are imagined to be arrangements of rigid sticks/hoops/etc resting on a flat surface, positive examples include sticks/hoops/etc that could be picked up without disturbing the other objects.`
	CROSSREFS	`Adjacent-numbered pages: BP1130 BP1131 BP1132 BP1133 BP1134 * BP1136 BP1137 BP1138 BP1139 BP1140`
	KEYWORD	`precise`
	AUTHOR	`Leo Crabbe`

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