The On-Line Encyclopedia of Bongard Problems

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Midpoints are collinear vs. midpoints are not collinear.

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	CROSSREFS	`Adjacent-numbered pages: BP156 BP157 BP158 BP159 BP160 * BP162 BP163 BP164 BP165 BP166`
	KEYWORD	`nice, unorderedtriplet, traditional`
	CONCEPT	`all (info \| search),` `collinear (info \| search),` `midpoint (info \| search),` `imagined_point (info \| search),` `imagined_entity (info \| search)`
	AUTHOR	`Harry E. Foundalis`

Small variance of slopes vs. large variance of slopes.

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	CROSSREFS	`Adjacent-numbered pages: BP168 BP169 BP170 BP171 BP172 * BP174 BP175 BP176 BP177 BP178`
	KEYWORD	`nice, spectrum, traditional, continuous`
	CONCEPT	`all (info \| search),` `pattern_or_random (info \| search),` `line_slope (info \| search),` `statistical_variance (info \| search),` `similar (info \| search)`
	AUTHOR	`Harry E. Foundalis`

All interiors are convex vs. at least one concave interior.

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	CROSSREFS	`Adjacent-numbered pages: BP172 BP173 BP174 BP175 BP176 * BP178 BP179 BP180 BP181 BP182`
	KEYWORD	`traditional`
	CONCEPT	`all (info \| search),` `concave_convex_angle (info \| search)`
	AUTHOR	`Harry E. Foundalis`

All clusters are made of objects of the same texture vs. not all clusters are made of objects of the same texture.

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	CROSSREFS	`Adjacent-numbered pages: BP184 BP185 BP186 BP187 BP188 * BP190 BP191 BP192 BP193 BP194`
	KEYWORD	`traditional`
	CONCEPT	`all (info \| search),` `outlined_filled (info \| search),` `feature_cluster (info \| search),` `cluster (info \| search),` `same_feature (info \| search),` `same (info \| search),` `texture (info \| search)`
	AUTHOR	`Harry E. Foundalis`

All connected objects have the same texture vs. some connected objects have different textures.

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	CROSSREFS	`Adjacent-numbered pages: BP185 BP186 BP187 BP188 BP189 * BP191 BP192 BP193 BP194 BP195`
	KEYWORD	`anticomputer, traditional`
	CONCEPT	`distinguishing_crossing_curves (info \| search),` `all (info \| search),` `on_line_or_curve (info \| search),` `outlined_filled (info \| search),` `shape_cluster (info \| search),` `cluster (info \| search),` `same_feature (info \| search),` `same (info \| search),` `texture (info \| search)`
	AUTHOR	`Harry E. Foundalis`

All curves spiral counterclockwise, starting from maximum curvature vs. all curves spiral clockwise, starting from maximum curvature.

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	CROSSREFS	`Adjacent-numbered pages: BP203 BP204 BP205 BP206 BP207 * BP209 BP210 BP211 BP212 BP213`
	KEYWORD	`traditional`
	CONCEPT	`all (info \| search),` `turn_orientation (info \| search),` `tracing_line_or_curve (info \| search),` `rotational_direction (info \| search),` `direction (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`

Scanning left-to-right, top-to-bottom, each filled box is separated from the next filled box by the same number of empty boxes vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP239 BP240 BP241 BP242 BP243 * BP245 BP246 BP247 BP248 BP249`
	KEYWORD	`left-finite, right-finite, traditional`
	CONCEPT	`all (info \| search),` `subtraction (info \| search),` `outlined_filled (info \| search),` `wrapping_around_bounding_box (info \| search),` `same_number (info \| search),` `same (info \| search),` `texture (info \| search)`
	AUTHOR	`Matthew J. Howells`

Squares are either all empty or all contain something vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP255 BP256 BP257 BP258 BP259 * BP261 BP262 BP263 BP264 BP265`
	KEYWORD	`traditional`
	CONCEPT	`all (info \| search),` `or (info \| search),` `empty (info \| search)`
	AUTHOR	`Carla Rispoli`

All three sizes are present vs. only two of the three sizes present.

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	CROSSREFS	`Adjacent-numbered pages: BP291 BP292 BP293 BP294 BP295 * BP297 BP298 BP299 BP300 BP301`
	KEYWORD	`traditional`
	CONCEPT	`all (info \| search),` `existence (info \| search),` `number (info \| search)`
	AUTHOR	`"Lewis"`

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