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BP805 Bongard Problem sorts example below on the left versus Bongard Problem sorts example below on the right.
(edit; present; nest [left/right]; search; history)
COMMENTS

See BP372 for the version of this with BPs with black shapes as examples instead of boxes.

CROSSREFS

Adjacent-numbered pages:
BP800 BP801 BP802 BP803 BP804  *  BP806 BP807 BP808 BP809 BP810

KEYWORD

nice, dual, handed, leftright, creativeexamples, structure, contributepairs, rules

CONCEPT bongard_problem (info | search),
categorization (info | search),
choice (info | search)

WORLD

boxes_bdimage_six_per_side_extra_below_clear_sort [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP18 "Pinched" shape (drastically thinner somewhere in the middle than on the ends) vs. non-pinched shape.
(edit; present; nest [left/right]; search; history)
COMMENTS

All examples in this Bongard Problem are oblong outlines of shapes.

REFERENCE

M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 219.

CROSSREFS

Adjacent-numbered pages:
BP13 BP14 BP15 BP16 BP17  *  BP19 BP20 BP21 BP22 BP23

KEYWORD

finished, traditional, bongard

CONCEPT neck_narrowing (info | search)

WORLD

elongated_outline [smaller | same | bigger]

AUTHOR

Mikhail M. Bongard

BP915 Finite number of dots vs. infinite number of dots.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP910 BP911 BP912 BP913 BP914  *  BP916 BP917 BP918 BP919 BP920

KEYWORD

less, notso, spectrum, number, example, left-null, impossible, experimental

CONCEPT finite_infinite (info | search)

WORLD

dots [smaller | same | bigger]

AUTHOR

Jago Collins

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

BP75 Triangle located at the concave side of an arc vs. triangle located at the convex side of an arc.
(edit; present; nest [left/right]; search; history)
REFERENCE

M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 238.

CROSSREFS

Adjacent-numbered pages:
BP70 BP71 BP72 BP73 BP74  *  BP76 BP77 BP78 BP79 BP80

KEYWORD

finished, traditional, bongard

CONCEPT concave_convex_region (info | search),
on_sides_of_curve (info | search),
triangle (info | search)

WORLD

[smaller | same | bigger]

AUTHOR

Mikhail M. Bongard

BP211 More black than white vs. more white than black.
(edit; present; nest [left/right]; search; history)
CROSSREFS

See BP196 for a version of this Problem restricted to uniform textures.

Adjacent-numbered pages:
BP206 BP207 BP208 BP209 BP210  *  BP212 BP213 BP214 BP215 BP216

KEYWORD

easy, nice, spectrum, dual, blackwhite, unstable, right-null, perfect, pixelperfect, traditional, continuous, viceversa, bordercontent

CONCEPT outlined_filled (info | search),
size (info | search),
texture (info | search)

WORLD

bmp [smaller | same | bigger]
zoom in left | zoom in right

AUTHOR

Giuseppe Insana

BP193 Ghost triangle vs. Ghost rectangle.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP188 BP189 BP190 BP191 BP192  *  BP194 BP195 BP196 BP197 BP198

KEYWORD

nice, anticomputer, traditional, dithering

CONCEPT absence_as_presence (info | search),
completed_out_of_box (info | search),
ghost (info | search),
number (info | search),
imagined_shape (info | search),
imagined_entity (info | search),
triangle (info | search)

AUTHOR

Harry E. Foundalis

BP532 Self-tiling fractal using one size of tile vs. does not tile itself with a single size of itself.
(edit; present; nest [left/right]; search; history)
CROSSREFS

This is BP344 ("rep-tiles") but for fractals.

See BP1119 for the version with multiple different sizes of tile allowed.

Adjacent-numbered pages:
BP527 BP528 BP529 BP530 BP531  *  BP533 BP534 BP535 BP536 BP537

KEYWORD

hardsort, proofsrequired, perfect, infinitedetail, contributepairs

CONCEPT fractal (info | search),
recursion (info | search),
self-reference (info | search),
tiling (info | search)

WORLD

[smaller | same | bigger]
zoom in left (fractal_self_tile)

AUTHOR

Aaron David Fairbanks

BP9 Non-wiggly outline vs. wiggly outline.
(edit; present; nest [left/right]; search; history)
COMMENTS

"Wiggly" means a high number of small concavities adjacent to one another all around the outline.

All examples in this Bongard Problem are shape outlines.

Shapes with outlines that are only wiggly within partial sections would be ambiguous. Shapes with outlines that have many medium-size concavities would be ambiguous.

REFERENCE

M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 216.

CROSSREFS

Adjacent-numbered pages:
BP4 BP5 BP6 BP7 BP8  *  BP10 BP11 BP12 BP13 BP14

KEYWORD

easy, nice, fuzzy, stable, world, finished, traditional, bongard

CONCEPT curve_texture (info | search),
texture (info | search)

WORLD

Multiple options:
mediumsize_centered_outline [smaller | same | bigger],
shape_outline [smaller | same | bigger]

AUTHOR

Mikhail M. Bongard

BP903 Sharp vs. blurry
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP898 BP899 BP900 BP901 BP902  *  BP904 BP905 BP906 BP907 BP908

KEYWORD

contributepairs

CONCEPT contrast (info | search),
curve_texture (info | search)

AUTHOR

Cameron Fetter

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