The On-Line Encyclopedia of Bongard Problems

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Bongard Problems about the properties of 2D representations of 3D objects vs. (still 2D) Bongard Problems about the properties of the 3D objects represented.

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BP250

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BP331

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

	COMMENTS	`Left-sorted Bongard Problems have the keyword "projectionmatters" on the OEBP.` `Right-sorted Bongard Problems have the keyword "3d" on the OEBP.`
	CROSSREFS	`See BP895 (presentationmatters vs. presentationinvariant) for a similar idea: there Bongard Problems are to Bongard Problem solutions as here 2D representations are to 3D objects.` `Adjacent-numbered pages: BP1005 BP1006 BP1007 BP1008 BP1009 * BP1011 BP1012 BP1013 BP1014 BP1015`
	KEYWORD	`meta (see left/right), links, keyword, sideless, dependence`
	AUTHOR	`Leo Crabbe`

BP995

Animated visual Bongard Problems vs. static visual Bongard Problems.

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

	COMMENTS	`Left examples have the keyword "animated" on the OEBP.`
	CROSSREFS	`Adjacent-numbered pages: BP990 BP991 BP992 BP993 BP994 * BP996 BP997 BP998 BP999 BP1000`
	KEYWORD	`meta (see left/right), links, keyword, wellfounded`
	WORLD	`visualbp [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

BP980

Bongard Problem with solution relating to concept: choice vs. Bongard Problem unrelated to this concept.

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

	CROSSREFS	`Adjacent-numbered pages: BP975 BP976 BP977 BP978 BP979 * BP981 BP982 BP983 BP984 BP985`
	KEYWORD	`meta (see left/right), links, metaconcept`
	CONCEPT	`This MBP is about BPs that feature concept: "choice"`
	WORLD	`bp [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

BP976

Bongard Problems that use color in their examples vs. black and white Bongard Problems.

	BP400	BP844	BP911	BP973	BP975	BP1202
	BP1255	BP1290

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

	COMMENTS	`Left examples have the keyword "color" on the OEBP.`
	CROSSREFS	`Adjacent-numbered pages: BP971 BP972 BP973 BP974 BP975 * BP977 BP978 BP979 BP980 BP981`
	KEYWORD	`meta (see left/right), links, keyword, wellfounded`
	WORLD	`visualbp [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

BP947

BPs where users are advised to only upload images in which the pixelation is not misleading vs. other "perfect" Bongard Problems that use pixelated images to closely approximate the actual intended shapes.

BP1	BP31	BP210	BP211	BP217	BP279
BP321	BP324	BP325	BP335	BP341	BP367
BP386	BP523	BP548	BP859	BP860	BP861
BP892	BP920	BP934	BP935	BP966	BP1008
BP1088	BP1089	BP1090	BP1093	BP1104	BP1131
BP1156	BP1161	BP1168	BP1183

	BP344	BP559	BP564	BP912	BP937	BP949
	BP965

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	COMMENTS	`Left examples have the keyword "pixelperfect" on the OEBP.` `All examples here are perfect Bongard Problems. That is, subtle imperfections in images are meant to be considered.` `When a Problem is tagged with "pixelperfect", users are reminded to make sure they do not upload images such that taking the pixelation into account would affect the sorting of that example. That is, the zoomed-in jagged blocky version of the picture should still fit the solution.` `For example, in the examples of BP335, which is about tessellation, the pixels interlock properly.`
	CROSSREFS	`Stable Bongard Problems are generally pixelperfect.` `Adjacent-numbered pages: BP942 BP943 BP944 BP945 BP946 * BP948 BP949 BP950 BP951 BP952`
	KEYWORD	`meta (see left/right), links, keyword, instruction`
	WORLD	`perfect_bp [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

BP943

Visual Bongard Problems whose solutions cannot be deduced when viewed in template form vs. not so.

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

	COMMENTS	Left examples are not required to be valid, as long as their solution doesn't apply in the traditional Bongard Problem format (6 panels vs. 6 panels, all one image). Additionally, they do not necessarily have to be rendered invalid by being viewed in the template format, but their solution does have to be altered. In some cases left examples are simply Problems whose solution is specific to the computer medium (BP941), however some examples have more profound solutions that the pen-and-paper template medium is too restrictive to represent (BP854).
	CROSSREFS	`See BP568.` `Adjacent-numbered pages: BP938 BP939 BP940 BP941 BP942 * BP944 BP945 BP946 BP947 BP948`
	KEYWORD	`meta (see left/right), links, oebp, time`
	WORLD	`bp [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

BP940

Bongard Problems such that there is a way of making an infinite list of all relevant possible right-sorted examples vs. Bongard Problems where there is no such way of listing all right-sorted examples.

BP386	BP394	BP904	BP926	BP931	BP956
BP997	BP1057	BP1072	BP1146	BP1147	BP1148
BP1149	BP1150	BP1199	BP1200	BP1201

	BP91	BP329	BP351	BP538	BP559	BP593
	BP801	BP902	BP920

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

	COMMENTS	`Left-sorted Problems have the keyword "right-listable" on the OEBP.` `BPs are sorted based on how BP563 (left-listable) would sort them were they flipped; see that page for a description.`
	CROSSREFS	`See right-finite, which distinguishes between finite right side and infinite right side.` `Adjacent-numbered pages: BP935 BP936 BP937 BP938 BP939 * BP941 BP942 BP943 BP944 BP945`
	KEYWORD	`meta (see left/right), links, keyword`
	WORLD	`bp_infinite_right_examples [smaller \| same \| bigger] zoom in right (right_uncountable_bp)`
	AUTHOR	`Leo Crabbe`

BP938

Bongard Problem with solution relating to concept: shape perimeter vs. Bongard Problem unrelated to this concept.

BP937

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

	CROSSREFS	`Adjacent-numbered pages: BP933 BP934 BP935 BP936 BP937 * BP939 BP940 BP941 BP942 BP943`
	KEYWORD	`meta (see left/right), links, metaconcept`
	CONCEPT	`This MBP is about BPs that feature concept: "perimeter"`
	WORLD	`bp [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

BP936

Bongard Problem with solution relating to concept: area (geometry) vs. Bongard Problem unrelated to this concept.

BP279

BP935

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

	CROSSREFS	`Adjacent-numbered pages: BP931 BP932 BP933 BP934 BP935 * BP937 BP938 BP939 BP940 BP941`
	KEYWORD	`meta (see left/right), links, metaconcept`
	CONCEPT	`This MBP is about BPs that feature concept: "area"`
	WORLD	`bp [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

BP923

Bongard Problem with solution relating to concept: permutation vs. Bongard Problem unrelated to this concept.

BP842

BP904

BP922

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

	CROSSREFS	`Adjacent-numbered pages: BP918 BP919 BP920 BP921 BP922 * BP924 BP925 BP926 BP927 BP928`
	KEYWORD	`meta (see left/right), links, metaconcept`
	CONCEPT	`This MBP is about BPs that feature concept: "permutation"`
	WORLD	`bp [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

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