The On-Line Encyclopedia of Bongard Problems

Search: concept:reachable

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Innermost shape is reachable from the outermost one vs. innermost shape is unreachable from the outermost one.

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	CROSSREFS	`Adjacent-numbered pages: BP110 BP111 BP112 BP113 BP114 * BP116 BP117 BP118 BP119 BP120`
	KEYWORD	`traditional`
	CONCEPT	`innermost_outermost (info \| search),` `path (info \| search),` `reachable (info \| search),` `tracing_line_or_curve (info \| search)`
	AUTHOR	`Douglas R. Hofstadter`

The rope, if extended, reaches the other ball vs. the rope, if extended, does not reach the other ball.

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	CROSSREFS	`Adjacent-numbered pages: BP230 BP231 BP232 BP233 BP234 * BP236 BP237 BP238 BP239 BP240`
	KEYWORD	`anticomputer, traditional`
	CONCEPT	`length_line_or_curve (info \| search),` `reachable (info \| search),` `imagined_line_or_curve (info \| search),` `imagined_entity (info \| search)`
	AUTHOR	`Peter Shanahan`

The two points are reachable through a path vs. the two points are unreachable by any path.

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	CROSSREFS	`Adjacent-numbered pages: BP289 BP290 BP291 BP292 BP293 * BP295 BP296 BP297 BP298 BP299`
	KEYWORD	`traditional`
	CONCEPT	`maze (info \| search),` `path (info \| search),` `reachable (info \| search)`
	AUTHOR	`"Lewis"`

One area unreachable by the marked locations vs. all areas reachable by the marked locations.

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	CROSSREFS	`Adjacent-numbered pages: BP310 BP311 BP312 BP313 BP314 * BP316 BP317 BP318 BP319 BP320`
	KEYWORD	`traditional`
	CONCEPT	`maze (info \| search),` `reachable (info \| search)`
	AUTHOR	`Jakub Štepo`

Small round object unreachable from the border of the box vs. small round object reachable from the border of the box.

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	COMMENTS	`Equivalently, "small round object enclosed by white loop vs. not so."`
	CROSSREFS	`Adjacent-numbered pages: BP316 BP317 BP318 BP319 BP320 * BP322 BP323 BP324 BP325 BP326`
	KEYWORD	`nice, precise, allsorted, boundingbox, perfect, pixelperfect, traditional, bordercontent`
	CONCEPT	`bounding_box (info \| search),` `path (info \| search),` `reachable (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

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