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BP1213 Axis of symmetry along the NW/SE diagonal vs. axis of symmetry along the NE/SW diagonal
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP1208 BP1209 BP1210 BP1211 BP1212  *  BP1214 BP1215 BP1216 BP1217 BP1218

KEYWORD

stub, dual, handed, leftright, updown, rotate, stretch, left-narrow, right-narrow, traditional, both

CONCEPT diagonal (info | search),
symmetry_axis (info | search),
symmetry (info | search)

AUTHOR

Aaron David Fairbanks

BP84 A quadrangle is outside of a figure made by circles vs. a quadrangle is inside of a figure made by circles.
(edit; present; nest [left/right]; search; history)
REFERENCE

M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 241.

CROSSREFS

Adjacent-numbered pages:
BP79 BP80 BP81 BP82 BP83  *  BP85 BP86 BP87 BP88 BP89

KEYWORD

finished, traditional, bongard

CONCEPT convex_hull (info | search),
interior_exterior (info | search),
cluster (info | search)

AUTHOR

Mikhail M. Bongard

BP1007 Meta Meta Meta Bongard Problems vs. other Bongard Problems.
BP547
BP1007
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP1002 BP1003 BP1004 BP1005 BP1006  *  BP1008 BP1009 BP1010 BP1011 BP1012

KEYWORD

meta (see left/right), links, keyword, left-self, metameta, metametameta, feedback, funny

CONCEPT recursion_number (info | search),
recursion (info | search)

WORLD

bp [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP328 All sides are equal vs. all angles are equal.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP323 BP324 BP325 BP326 BP327  *  BP329 BP330 BP331 BP332 BP333

KEYWORD

nice, stretch, left-narrow, right-narrow, traditional, finishedexamples, both

CONCEPT angle (info | search),
length_line_or_curve (info | search),
same_feature (info | search),
same (info | search)

WORLD

polygon_outline [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP338 High approximate similarity vs. lower approximate similarity.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP333 BP334 BP335 BP336 BP337  *  BP339 BP340 BP341 BP342 BP343

KEYWORD

spectrum, traditional, continuous

CONCEPT imperfection_small (info | search),
same_shape (info | search),
same (info | search),
similar_shape (info | search),
similar (info | search)

WORLD

two_shapes [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP979 It is possible to deduce the contents of the missing square vs. not so.
?
(edit; present; nest [left/right]; search; history)
COMMENTS

All examples show grids of squares with an image in each square, such that there is some "rule" the images within the grid obey. The "rule" can be about how the images relate to their neighbors, it can involve the position of the images in the grid, and it can involve properties of the grid considered as a whole. One square from somewhere along the edge of the grid is removed.


Intentionally left out of this Bongard Problem (or left as sorted ambiguously) are cases in which there is no clear rule, or it is not possible to deduce what the intended rule is without seeing more squares (e.g. EX8097). Due to this choice to omit those kinds of examples from the right, another acceptable solution is "it is possible to deduce the contents of the missing square once the underlying rule is understood vs. not so."

REFERENCE

https://en.wikipedia.org/wiki/Raven%27s_Progressive_Matrices

CROSSREFS

BP1258 is very similar: whether ALL squares can be deduced from the rest.

Adjacent-numbered pages:
BP974 BP975 BP976 BP977 BP978  *  BP980 BP981 BP982 BP983 BP984

KEYWORD

nice, notso, structure, rules, miniworlds

CONCEPT convey_enough_information (info | search),
choice (info | search)

WORLD

grid_of_images_with_rule_one_on_edge_missing [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP873 Solution involves discrete quantity vs. solution involves continuous quantity.
(edit; present; nest [left/right]; search; history)
CROSSREFS

All examples in this Bongard Problem fit left in BP874.


See BP351 for the version with sequences of constant change instead of Bongard Problems.


See BP1152 for the version with links to pages on the OEBP instead of images of Bongard Problems (miniproblems).

Adjacent-numbered pages:
BP868 BP869 BP870 BP871 BP872  *  BP874 BP875 BP876 BP877 BP878

KEYWORD

meta (see left/right), miniproblems, creativeexamples, assumesfamiliarity, structure, presentationinvariant

CONCEPT discrete_continuous (info | search)

WORLD

bpimage_shapes_quantity_soln [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP957 Images of Bongard Problems that sort an image of their left side on their left and an image of their right side on their right vs. images of Bongard Problems that sort an image of their left side on their right and an image of their right side on their left.
(edit; present; nest [left/right]; search; history)
CROSSREFS

See also BP955 for the other two evident possibilities.

Adjacent-numbered pages:
BP952 BP953 BP954 BP955 BP956  *  BP958 BP959 BP960 BP961 BP962

KEYWORD

nice, abstract, solved, meta (see left/right), miniproblems, creativeexamples, assumesfamiliarity, structure, experimental

CONCEPT self-reference (info | search)

WORLD

oblong_panels_bpimage_sorts_both_sides_balanced [smaller | same | bigger]
zoom in left (oblong_panels_bpimage_sorts_both_sides_stay) | zoom in right (oblong_panels_bpimage_sorts_both_sides_swap)

AUTHOR

Leo Crabbe

BP932 Every vertex is connected to every other vs. vertices are connected in a cycle (no other connections).
?
?
(edit; present; nest [left/right]; search; history)
COMMENTS

Complete graphs with zero, one, two, or three vertices would be ambiguously categorized (fit in overlap of both sides).


Left examples are called "fully connected graphs." Right examples are called "cycle graphs."

CROSSREFS

Adjacent-numbered pages:
BP927 BP928 BP929 BP930 BP931  *  BP933 BP934 BP935 BP936 BP937

KEYWORD

precise, left-narrow, right-narrow, both, preciseworld

CONCEPT graph (info | search),
distinguishing_crossing_curves (info | search),
all (info | search),
loop (info | search)

WORLD

connected_graph [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP53 Inside figure has fewer angles than outside figure vs. inside figure has more angles than outside figure.
(edit; present; nest [left/right]; search; history)
REFERENCE

M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 231.

CROSSREFS

Adjacent-numbered pages:
BP48 BP49 BP50 BP51 BP52  *  BP54 BP55 BP56 BP57 BP58

KEYWORD

spectrum, finished, traditional, discrete, viceversa, bongard

CONCEPT inside (info | search),
number (info | search),
quantity_comparison (info | search)

AUTHOR

Mikhail M. Bongard

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