The On-Line Encyclopedia of Bongard Problems

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BP154

Wedged endings vs. rounded endings.

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

	CROSSREFS	`Adjacent-numbered pages: BP149 BP150 BP151 BP152 BP153 * BP155 BP156 BP157 BP158 BP159`
	KEYWORD	`traditional`
	CONCEPT	`curved_straight (info \| search),` `line_or_curve_endpoint (info \| search),` `imagined_line_or_curve (info \| search),` `imagined_entity (info \| search),` `specific_style (info \| search),` `specificity (info \| search)`
	AUTHOR	`Douglas R. Hofstadter`

BP162

Every other side, if extended, passes through one point vs. not so.

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

	CROSSREFS	`Adjacent-numbered pages: BP157 BP158 BP159 BP160 BP161 * BP163 BP164 BP165 BP166 BP167`
	KEYWORD	`hard, noisy, traditional`
	CONCEPT	`lines_coincide (info \| search),` `every_other (info \| search),` `imagined_point (info \| search),` `imagined_line_or_curve (info \| search),` `imagined_entity (info \| search)`
	AUTHOR	`Harry E. Foundalis`

BP163

Line connecting small shapes does not intersect large one vs. line connecting small shapes intersects large one.

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

	CROSSREFS	`See BP1015 for a re-skinned version with dots instead of shapes.` `Adjacent-numbered pages: BP158 BP159 BP160 BP161 BP162 * BP164 BP165 BP166 BP167 BP168`
	KEYWORD	`traditional`
	CONCEPT	`imagined_line_or_curve (info \| search),` `imagined_entity (info \| search),` `object_line_overlap (info \| search),` `overlap (info \| search)`
	AUTHOR	`Harry E. Foundalis`

BP183

Same curvature close to the middle vs. change of curvature close to the middle.

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

	CROSSREFS	`Adjacent-numbered pages: BP178 BP179 BP180 BP181 BP182 * BP184 BP185 BP186 BP187 BP188`
	KEYWORD	`noisy, traditional`
	CONCEPT	`sides_of_line (info \| search),` `tangent (info \| search),` `imagined_point (info \| search),` `imagined_line_or_curve (info \| search),` `imagined_entity (info \| search)`
	WORLD	`curve [smaller \| same \| bigger]`
	AUTHOR	`Harry E. Foundalis`

BP199

Stays put vs. tumbles.

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

	CROSSREFS	`BP273 has the same solution, except all examples are letters.` `Adjacent-numbered pages: BP194 BP195 BP196 BP197 BP198 * BP200 BP201 BP202 BP203 BP204`
	KEYWORD	`nice, handed, updown, rotate, physics, anticomputer, perfect`
	CONCEPT	`base (info \| search),` `downward_upward (info \| search),` `tumbles_or_stays_put (info \| search),` `line_absolute_direction (info \| search),` `absolute_direction (info \| search),` `imagined_line_or_curve (info \| search),` `imagined_entity (info \| search),` `direction (info \| search),` `gravity (info \| search)`
	AUTHOR	`Harry E. Foundalis`

BP235

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

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

	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`

BP238

C-like curves point to the same direction vs. c-like curves point to opposite directions.

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

	CROSSREFS	`Adjacent-numbered pages: BP233 BP234 BP235 BP236 BP237 * BP239 BP240 BP241 BP242 BP243`
	KEYWORD	`unorderedpair, traditional`
	CONCEPT	`tangent (info \| search),` `line_absolute_direction (info \| search),` `absolute_direction (info \| search),` `imagined_line_or_curve (info \| search),` `imagined_entity (info \| search),` `same_feature (info \| search),` `same (info \| search),` `direction (info \| search)`
	AUTHOR	`Harry E. Foundalis`

BP239

Straight line parallel to line joining the ends of curve AND sliding the straight line suitably can make a closed area vs. straight line perpendicular to line joining the ends of curve.

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

	CROSSREFS	`Adjacent-numbered pages: BP234 BP235 BP236 BP237 BP238 * BP240 BP241 BP242 BP243 BP244`
	KEYWORD	`traditional`
	CONCEPT	`line_or_curve_endpoint (info \| search),` `length_line_or_curve (info \| search),` `imagined_line_or_curve (info \| search),` `imagined_entity (info \| search),` `imagined_motion (info \| search),` `motion (info \| search),` `same_feature (info \| search),` `same (info \| search),` `parallel (info \| search),` `perpendicular (info \| search)`
	AUTHOR	`Harry E. Foundalis`

BP240

Straight line joining the curve ends does not cut the curve vs. straight line joining the curve ends intersects the curve.

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

	CROSSREFS	`Adjacent-numbered pages: BP235 BP236 BP237 BP238 BP239 * BP241 BP242 BP243 BP244 BP245`
	KEYWORD	`traditional`
	CONCEPT	`x-crossing (info \| search),` `line_or_curve_endpoint (info \| search),` `imagined_line_or_curve (info \| search),` `imagined_entity (info \| search)`
	AUTHOR	`Matthew J. Howells`

BP245

Can be completed to be made into a rectangle vs. cannot be completed to be made into a rectangle.

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

	CROSSREFS	`Adjacent-numbered pages: BP240 BP241 BP242 BP243 BP244 * BP246 BP247 BP248 BP249 BP250`
	KEYWORD	`traditional`
	CONCEPT	`imagined_line_or_curve (info \| search),` `imagined_entity (info \| search)`
	AUTHOR	`Carla Rispoli`

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