The On-Line Encyclopedia of Bongard Problems

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Enclosed square repelled by the outside squares, closest to the side of the enclosing square thats farthest from the common center of the outside squares. vs. enclosed square attracted by the outside squares, closest to the side of the enclosing square thats closest to the common center of the outside squares..

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	CROSSREFS	`Adjacent-numbered pages: BP305 BP306 BP307 BP308 BP309 * BP311 BP312 BP313 BP314 BP315`
	KEYWORD	`traditional`
	CONCEPT	`cluster_barycenter (info \| search),` `inside (info \| search),` `interior_exterior (info \| search),` `near_far (info \| search),` `shape_cluster (info \| search),` `cluster (info \| search),` `imagined_point (info \| search),` `imagined_entity (info \| search)`
	AUTHOR	`"Lewis"`

BP309

Ball touches curve at a point of local minimum downwards vs. ball touches curve at a point of local maximum upwards.

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	CROSSREFS	`Adjacent-numbered pages: BP304 BP305 BP306 BP307 BP308 * BP310 BP311 BP312 BP313 BP314`
	KEYWORD	`traditional`
	CONCEPT	`local_max_min (info \| search),` `separation_of_joined_objects (info \| search)`
	AUTHOR	`"Lewis"`

BP308

Three or more small clusters of dots vs. not so.

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	CROSSREFS	`BP307 is similar.` `Adjacent-numbered pages: BP303 BP304 BP305 BP306 BP307 * BP309 BP310 BP311 BP312 BP313`
	KEYWORD	`traditional`
	CONCEPT	`feature_cluster (info \| search),` `cluster (info \| search),` `three (info \| search)`
	AUTHOR	`"Lewis"`

BP307

Dots are in tight clusters around convex vertices vs. dots are spread around.

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	CROSSREFS	`BP308 is similar.` `Adjacent-numbered pages: BP302 BP303 BP304 BP305 BP306 * BP308 BP309 BP310 BP311 BP312`
	KEYWORD	`traditional`
	CONCEPT	`vertex_of_meeting_lines (info \| search),` `feature_cluster (info \| search),` `cluster (info \| search)`
	AUTHOR	`"Lewis"`

BP306

Ratio of inside to outside identical shapes is constant vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP301 BP302 BP303 BP304 BP305 * BP307 BP308 BP309 BP310 BP311`
	KEYWORD	`traditional`
	CONCEPT	`inside (info \| search),` `interior_exterior (info \| search),` `ratio (info \| search)`
	AUTHOR	`"Lewis"`

BP305

Shapes identical after rotation vs. shapes identical after rotation and mirroring.

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	CROSSREFS	`Adjacent-numbered pages: BP300 BP301 BP302 BP303 BP304 * BP306 BP307 BP308 BP309 BP310`
	KEYWORD	`nice, traditional`
	CONCEPT	`rotation_required (info \| search),` `same_shape (info \| search),` `same (info \| search)`
	AUTHOR	`"Lewis"`

BP304

At least one (interior or exterior) right angle vs. no right angle (either interior or exterior).

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	CROSSREFS	`Adjacent-numbered pages: BP299 BP300 BP301 BP302 BP303 * BP305 BP306 BP307 BP308 BP309`
	KEYWORD	`traditional, finishedexamples`
	WORLD	`polygon_outline [smaller \| same \| bigger]`
	AUTHOR	`"Lewis"`

BP303

Three objects are identical, the fourth differs vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP298 BP299 BP300 BP301 BP302 * BP304 BP305 BP306 BP307 BP308`
	KEYWORD	`noisy, traditional, fixedgrid`
	CONCEPT	`same_shape (info \| search),` `same (info \| search)`
	AUTHOR	`"Lewis"`

BP302

5 collinear objects, of which the 3rd is moved elsewhere vs. 5 collinear objects, of which the 2nd/4th is moved elsewhere.

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	CROSSREFS	`Adjacent-numbered pages: BP297 BP298 BP299 BP300 BP301 * BP303 BP304 BP305 BP306 BP307`
	KEYWORD	`traditional`
	CONCEPT	`collinear (info \| search),` `ordinal_orering (info \| search),` `two (info \| search),` `three (info \| search),` `four (info \| search),` `five (info \| search)`
	AUTHOR	`"Lewis"`

BP301

Large and medium-sized square, the latter can be hidden vs. large and small-sized square, the latter can be hidden.

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	CROSSREFS	`Adjacent-numbered pages: BP296 BP297 BP298 BP299 BP300 * BP302 BP303 BP304 BP305 BP306`
	KEYWORD	`invalid, traditional`
	CONCEPT	`outlined_filled (info \| search),` `size (info \| search),` `objects_overlap (info \| search),` `overlap (info \| search),` `texture (info \| search)`
	AUTHOR	`"Lewis"`

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