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BP159 Two clusters of 2+3, middle shape must be seen as rectangle (AND only one linelike shape) vs. two clusters of 2+3, middle shape must be seen as piece of straight line (AND more than one linelike shape).
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP154 BP155 BP156 BP157 BP158  *  BP160 BP161 BP162 BP163 BP164

KEYWORD

convoluted, unwordable

CONCEPT number (info | search)

AUTHOR

Harry E. Foundalis

BP213 The tightest-curved section, out of all sections of curve that make a complete turn (360 degrees), contains an x-crossing point vs. not so.
(edit; present; nest [left/right]; search; history)
COMMENTS

All examples are connected smooth curves allowed to self-intersect that must curve in only one direction (starting at one end, either clockwise or counter-clockwise), i.e. there is no inflection point.

CROSSREFS

Adjacent-numbered pages:
BP208 BP209 BP210 BP211 BP212  *  BP214 BP215 BP216 BP217 BP218

KEYWORD

less, convoluted, perfect, traditional

CONCEPT x-crossing (info | search)

AUTHOR

Giuseppe Insana

BP227 Dots touch each other if and only if no large region touches the edges of the box vs. dots dont touch each other if and only if no large region touches the edges of the box.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP222 BP223 BP224 BP225 BP226  *  BP228 BP229 BP230 BP231 BP232

KEYWORD

convoluted, traditional

CONCEPT iff (info | search),
near_far (info | search)

AUTHOR

Giuseppe Insana

BP228 After rotating so that the longest line is horizontal, there is a left arm raised and a weight down vs. after rotating so that the longest line is horizontal, there is a left arm down and a weight raised.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP223 BP224 BP225 BP226 BP227  *  BP229 BP230 BP231 BP232 BP233

KEYWORD

convoluted, traditional

CONCEPT rotation_required (info | search),
specific_style (info | search),
specificity (info | search)

AUTHOR

Giuseppe Insana

BP257 The distance from the center of the line to the bottom of the square is the same as the distance from the dot to the right edge of the square vs. not so.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP252 BP253 BP254 BP255 BP256  *  BP258 BP259 BP260 BP261 BP262

KEYWORD

convoluted, notso, boundingbox, traditional, absoluteposition

CONCEPT bounding_box (info | search),
length_line_or_curve (info | search),
midpoint (info | search),
imagined_point (info | search),
imagined_line_or_curve (info | search),
imagined_entity (info | search),
same_feature (info | search),
same (info | search),
distance_from_center (info | search)

AUTHOR

Andreas Gunnarsson

BP262 Exactly one point where lines bend at an angle vs. not exactly one point where lines bend at an angle.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP257 BP258 BP259 BP260 BP261  *  BP263 BP264 BP265 BP266 BP267

KEYWORD

less, convoluted, traditional

CONCEPT angle (info | search),
number (info | search)

AUTHOR

Pablo Barenbaum

BP290 If any non-nosed faces exist, they are happy if and only if happy nosed faces exist as well vs. not so.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP285 BP286 BP287 BP288 BP289  *  BP291 BP292 BP293 BP294 BP295

KEYWORD

convoluted

CONCEPT existence (info | search),
iff (info | search)

AUTHOR

"Lewis"

BP825 Ticks mark an infinite sequence of angles on circle such that each angle is the double of the subsequent angle in the sequence (angle measured from rightmost indicated point) vs. not so.
(edit; present; nest [left/right]; search; history)
COMMENTS

This is solvable; it was solved by Sridhar Ramesh.


A full turn is considered "the same angle" as no turns; likewise for adding and subtracting full turns from any angle. All sequences of angles shown start at the rightmost tick.


It doesn't matter whether the angle is measured clockwise or counterclockwise, as long as the choice is consistent.

CROSSREFS

Adjacent-numbered pages:
BP820 BP821 BP822 BP823 BP824  *  BP826 BP827 BP828 BP829 BP830

KEYWORD

hard, convoluted, notso, math, solved

CONCEPT sequence (info | search)

AUTHOR

Aaron David Fairbanks

BP849 Loop is time-symmetrical (loop is like ABCBABCBA... instead of like ABCABCABC...) up to rotation of object vs. not so (neither up to rotation nor reflection).
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP844 BP845 BP846 BP847 BP848  *  BP850 BP851 BP852 BP853 BP854

KEYWORD

hard, convoluted, solved, rules

WORLD

constant_change_seq_loop_right [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP920 Is exact specific image (EX6205) vs. is not.
(edit; present; nest [left/right]; search; history)
COMMENTS

A spot-the-difference exercise.


Arguably invalid (solution not simple).

CROSSREFS

Adjacent-numbered pages:
BP915 BP916 BP917 BP918 BP919  *  BP921 BP922 BP923 BP924 BP925

KEYWORD

less, precise, convoluted, arbitrary, stretch, unstable, left-finite, left-full, perfect, pixelperfect, experimental, funny

CONCEPT imperfection_small (info | search),
specificity (info | search)

WORLD

bmp [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

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