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COMMENTS
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All examples in this Problem are outlines of shapes or solid black shapes. |
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REFERENCE
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M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 215. |
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CROSSREFS
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BP136 is the same solution (flipped) but with only polygonal outlines and also with extraneous dots distracting from the solution.
Adjacent-numbered pages:
BP1 BP2 BP3  *  BP5 BP6 BP7 BP8 BP9
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KEYWORD
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easy, nice, precise, unstable, right-narrow, finished, traditional, bongard
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CONCEPT
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concave_convex_angle (info | search)
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WORLD
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outline_or_fill_shape [smaller | same | bigger]
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AUTHOR
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Mikhail M. Bongard
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