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BP550 Experimental Bongard Problems vs. traditional-style Bongard Problems.
BP195
BP200
BP300
BP359
BP538
BP544
BP545
BP548
BP555
BP570
BP793
BP795
BP797
BP801
BP812
BP813
BP844
BP854
BP859
BP862
BP868
BP902
BP911
BP915
BP920
BP939
BP941
BP942
BP953
BP955
BP957
BP959
BP1008
BP1056
BP1073

. . .

BP1
BP2
BP3
BP4
BP5
BP6
BP7
BP8
BP9
BP10
BP11
BP12
BP13
BP14
BP15
BP16
BP17
BP18
BP19
BP20
BP21
BP22
BP23
BP24
BP25
BP26
BP27
BP28
BP29
BP30
BP31
BP32
BP33
BP34
BP35

. . .

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

Left examples have the keyword "experimental" on the OEBP.

Right examples have the keyword "traditional" on the OEBP.


Experimental BPs push the boundaries of what makes Bongard Problems Bongard Problems.


Traditional BPs show some simple property of black and white pictures. The OEBP is a place with many wild and absurd Bongard Problems, so it is useful to have an easy way to just find the regular old Bongard Problems.

CROSSREFS

Adjacent-numbered pages:
BP545 BP546 BP547 BP548 BP549  *  BP551 BP552 BP553 BP554 BP555

KEYWORD

subjective, meta (see left/right), links, keyword, left-it

WORLD

bp [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP672 Bongard Problem with solution relating to concept: number (countable quantity of feature or object) vs. Bongard Problem unrelated to this concept.
BP6
BP10
BP23
BP27
BP28
BP29
BP53
BP85
BP86
BP87
BP88
BP89
BP90
BP91
BP96
BP98
BP107
BP110
BP114
BP122
BP126
BP127
BP141
BP143
BP144
BP145
BP151
BP156
BP159
BP160
BP164
BP166
BP167
BP169
BP181

. . .

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

Adjacent-numbered pages:
BP667 BP668 BP669 BP670 BP671  *  BP673 BP674 BP675 BP676 BP677

KEYWORD

meta (see left/right), links, metaconcept, primitive

CONCEPT This MBP is about BPs that feature concept: "number"

WORLD

bp [smaller | same | bigger]

AUTHOR

Harry E. Foundalis

BP724 Bongard Problem with solution relating to concept: 3-d solid vs. Bongard Problem unrelated to this concept.
BP250
BP251
BP331
BP370
BP371
BP900
BP993
BP994
BP1269
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP719 BP720 BP721 BP722 BP723  *  BP725 BP726 BP727 BP728 BP729

KEYWORD

meta (see left/right), links, metaconcept

CONCEPT This MBP is about BPs that feature concept: "3d_solid"

WORLD

bp [smaller | same | bigger]

AUTHOR

Harry E. Foundalis

BP738 Bongard Problem with solution relating to concept: imaginary point vs. Bongard Problem unrelated to this concept.
BP52
BP78
BP102
BP104
BP117
BP133
BP134
BP161
BP162
BP178
BP183
BP184
BP249
BP250
BP257
BP287
BP310
BP312
BP368
BP990
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP733 BP734 BP735 BP736 BP737  *  BP739 BP740 BP741 BP742 BP743

KEYWORD

meta (see left/right), links, metaconcept

CONCEPT This MBP is about BPs that feature concept: "imagined_point"

WORLD

bp [smaller | same | bigger]

AUTHOR

Harry E. Foundalis

BP739 Bongard Problem with solution relating to concept: imaginary line or curve vs. Bongard Problem unrelated to this concept.
BP64
BP73
BP74
BP78
BP81
BP103
BP106
BP112
BP117
BP131
BP154
BP162
BP163
BP183
BP199
BP235
BP238
BP239
BP240
BP245
BP250
BP257
BP261
BP273
BP275
BP280
BP287
BP292
BP312
BP342
BP358
BP368
BP383
BP388
BP394

. . .

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

Adjacent-numbered pages:
BP734 BP735 BP736 BP737 BP738  *  BP740 BP741 BP742 BP743 BP744

KEYWORD

meta (see left/right), links, metaconcept

CONCEPT This MBP is about BPs that feature concept: "imagined_line_or_curve"

WORLD

bp [smaller | same | bigger]

AUTHOR

Harry E. Foundalis

BP741 Bongard Problem with solution relating to concept: imaginary entity vs. Bongard Problem unrelated to this concept.
BP52
BP64
BP73
BP74
BP78
BP81
BP96
BP97
BP101
BP102
BP103
BP104
BP106
BP112
BP117
BP131
BP133
BP134
BP138
BP154
BP161
BP162
BP163
BP178
BP183
BP184
BP193
BP194
BP199
BP235
BP238
BP239
BP240
BP245
BP249

. . .

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

Adjacent-numbered pages:
BP736 BP737 BP738 BP739 BP740  *  BP742 BP743 BP744 BP745 BP746

KEYWORD

meta (see left/right), links, metaconcept, primitive

CONCEPT This MBP is about BPs that feature concept: "imagined_entity"

WORLD

bp [smaller | same | bigger]

AUTHOR

Harry E. Foundalis

BP1010 Bongard Problems about the properties of 2D representations of 3D objects vs. (still 2D) Bongard Problems about the properties of the 3D objects represented.
BP332
BP333
BP822
BP900
BP993
BP994
BP996
?
BP250
?
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

BP1112 "Stretch-dependent" Bongard Problems vs. Bongard Problems in which examples can be stretched (or compressed) along any axis without being sorted differently.
BP7
BP11
BP12
BP13
BP33
BP50
BP62
BP76
BP77
BP80
BP103
BP152
BP250
BP289
BP328
BP329
BP333
BP335
BP336
BP523
BP525
BP536
BP557
BP559
BP812
BP813
BP816
BP860
BP920
BP924
BP942
BP949
BP1011
BP1086
BP1145

. . .

BP1
BP5
BP15
BP31
BP45
BP98
BP157
BP240
BP322
BP327
BP330
BP331
BP332
BP348
BP363
BP367
BP368
BP369
BP389
BP809
BP810
BP851
BP853
BP911
BP966
BP977
BP992
BP1022
BP1094
BP1131
BP1135
BP1136
(edit; present; nest [left/right]; search; history)
COMMENTS

Left-sorted Bongard Problems have the keyword "stretch" on the OEBP.


If applying a scaling along one particular axis to the whole of any example can change its sorting the BP fits on the left side here. (For BPs with bounding boxes this means scaling and cropping, but without cutting out any detail.)

CROSSREFS

Adjacent-numbered pages:
BP1107 BP1108 BP1109 BP1110 BP1111  *  BP1113 BP1114 BP1115 BP1116 BP1117

KEYWORD

meta (see left/right), links, keyword, invariance

WORLD

[smaller | same | bigger]

AUTHOR

Leo Crabbe

BP1159 Bongard Problems where examples are only sorted left if nothing indicates that they would be sorted right vs. vice-versa.
BP250
BP333
BP525
BP823
BP1230
BP1183
(edit; present; nest [left/right]; search; history)
COMMENTS

Left-sorted Bongard Problems have the keyword "left-couldbe" on the OEBP.

Right-sorted Bongard Problems have the keyword "right-couldbe".


In a "couldbe" Bongard Problem, some relevant information is left out by the way objects are displayed. Solutions to "left-couldbe" BPs sound like "Could be a ___ vs. definitely not a ___" (and vice versa for "right-couldbe" BPs.)



To put it in mathematical jargon, there is a "projection" function from objects to pictures, such that objects satisfying property X are mapped to the same picture as objects not satisfying property X. Sorted on the "couldbe" side is the image (under projection) of the collection of objects satisfying property X.


Furthermore, usually X is a relatively narrow criterion, so that most objects do not satisfy it (see keywords left-narrow and right-narrow), and all pictures are in the image (under projection) of the collection of objects not satisfying property X.

REFERENCE

Consider BP525, "Cropped image of a circle vs. not so." None of the left-hand examples are definitely an image of a circle, but they fit left because nothing indicates that they are not an image of a circle. A more pedantic solution to this Bongard Problem would be "There is a way of cropping a circle that gives this image vs. there isn't."

CROSSREFS

See also the keyword seemslike, where neither side can be confirmed.


Either "left-couldbe" or "right-couldbe" implies notso.


Although the descriptions of "left-couldbe" and "right-couldbe" sound similar to left-unknowable and right-unknowable, they are not the same. It is the difference between a clear absence of information and perpetual uncertainty about whether there is more information to be found.


"Left-couldbe" is usually left-narrow and "right-couldbe" usually right-narrow.

Adjacent-numbered pages:
BP1154 BP1155 BP1156 BP1157 BP1158  *  BP1160 BP1161 BP1162 BP1163 BP1164

KEYWORD

dual, meta (see left/right), links, keyword, side, viceversa

AUTHOR

Leo Crabbe

BP1194 Bongard Problems listed in Harry E. Foundalis's collection vs. not.
BP1
BP2
BP3
BP4
BP5
BP6
BP7
BP8
BP9
BP10
BP11
BP12
BP13
BP14
BP15
BP16
BP17
BP18
BP19
BP20
BP21
BP22
BP23
BP24
BP25
BP26
BP27
BP28
BP29
BP30
BP31
BP32
BP33
BP34
BP35

. . .

BP501
BP503
BP504
BP505
BP506
BP507
BP508
BP509
BP510
BP1194
(edit; present; nest [left/right]; search; history)
COMMENTS

Alternatively, BP pages on the OEBP with number less than or equal to 394 vs. other BP pages.

REFERENCE

https://www.foundalis.com/res/bps/bpidx.htm

CROSSREFS

Adjacent-numbered pages:
BP1189 BP1190 BP1191 BP1192 BP1193  *  BP1195 BP1196 BP1197 BP1198 BP1199

EXAMPLE

Foundalis's collection includes all Bongard Problems by Bongard.

KEYWORD

meta (see left/right), links, right-self, time

AUTHOR

Aaron David Fairbanks

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