Search: supworld:BP19
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BP17 |
| Shape with a reflex corner vs. shape without a reflex corner. |
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BP19 |
| Horizontal pinch vs. vertical pinch. |
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COMMENTS
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All examples in this Bongard Problem are outlines of shapes. More specifically, all examples have a thin horizontal or vertical bridge in the middle connecting two wide ends. |
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REFERENCE
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M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 220. |
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CROSSREFS
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Adjacent-numbered pages:
BP14 BP15 BP16 BP17 BP18  *  BP20 BP21 BP22 BP23 BP24
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KEYWORD
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dual, rotate, finished, traditional, bongard
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CONCEPT
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horizontal (info | search), neck_narrowing (info | search), vertical (info | search)
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WORLD
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[smaller | same | bigger]
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AUTHOR
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Mikhail M. Bongard
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BP23 |
| One vs. two figures. |
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COMMENTS
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All examples in this Problem comprise one or two shape outlines. |
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REFERENCE
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M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 221. |
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CROSSREFS
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Adjacent-numbered pages:
BP18 BP19 BP20 BP21 BP22  *  BP24 BP25 BP26 BP27 BP28
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KEYWORD
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easy, nice, precise, number, world, gap, finished, traditional, bongard
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CONCEPT
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number (info | search), one (info | search), two (info | search)
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WORLD
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outlines [smaller | same | bigger] zoom in left (shape_outline) | zoom in right (two_outlines)
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AUTHOR
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Mikhail M. Bongard
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BP30 |
| A curve with one self-crossing vs. a curve without a self-crossing. |
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BP32 |
| A sharp projection vs. no sharp projection. |
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REFERENCE
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M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 224. |
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CROSSREFS
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Adjacent-numbered pages:
BP27 BP28 BP29 BP30 BP31  *  BP33 BP34 BP35 BP36 BP37
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KEYWORD
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nice, notso, finished, traditional, bongard
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CONCEPT
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acute (info | search), angle (info | search), cusp (info | search), protrusion (info | search)
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WORLD
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shape_outline [smaller | same | bigger]
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AUTHOR
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Mikhail M. Bongard
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BP33 |
| Acute angle vs. no acute angle. |
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REFERENCE
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M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 224. |
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CROSSREFS
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Adjacent-numbered pages:
BP28 BP29 BP30 BP31 BP32  *  BP34 BP35 BP36 BP37 BP38
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KEYWORD
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nice, stretch, finished, traditional, bongard
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CONCEPT
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acute (info | search), angle (info | search), existence (info | search)
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WORLD
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Multiple options: mediumsize_centered_outline [smaller | same | bigger], shape_outline [smaller | same | bigger]
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AUTHOR
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Mikhail M. Bongard
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BP50 |
| Vertical axis of symmetry vs. no axis of symmetry. |
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REFERENCE
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M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 230. |
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CROSSREFS
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BP152 is the same solution (with the sides switched), using connected shapes and without black filling.
BP1206 was created to be a slightly different version of this: "vertical axis of symmetry vs. no vertical axis of symmetry." (That less specific solution fits this Bongard Problem as well.)
Adjacent-numbered pages:
BP45 BP46 BP47 BP48 BP49  *  BP51 BP52 BP53 BP54 BP55
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KEYWORD
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nice, stretch, left-narrow, finished, traditional, bongard
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CONCEPT
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symmetry_axis (info | search), symmetry (info | search)
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WORLD
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curves_and_fill_shapes_separate_drawing [smaller | same | bigger]
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AUTHOR
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Mikhail M. Bongard
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BP60 |
| Some similar figures vs. no similar figures. |
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BP91 |
| Three identical elements vs. four identical elements. |
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REFERENCE
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M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 244. |
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CROSSREFS
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BP1226 is "three identical elements vs. other number of identical elements".
Adjacent-numbered pages:
BP86 BP87 BP88 BP89 BP90  *  BP92 BP93 BP94 BP95 BP96
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KEYWORD
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number, ignoreimperfections, finished, traditional, bongard
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CONCEPT
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indentation (info | search), on_line_or_curve (info | search), number (info | search), protrusion (info | search), separation_of_joined_objects (info | search), same (info | search), three (info | search), four (info | search)
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WORLD
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curves_and_fill_shapes_drawing [smaller | same | bigger]
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AUTHOR
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Mikhail M. Bongard
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BP119 |
| A small correction will result in a single circle vs. no small correction will result in a single circle. |
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