Search: keyword:preciseworld
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BP1132 |
| Circle that passes through points is contained within bounding box vs. not so. |
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BP1137 |
| Constructible Polygon vs. Non-constructible Polygon |
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BP1138 |
| Each attribute is shared by every group or none vs. some attribute is shared by exactly two groups |
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COMMENTS
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Attributes are shading, shape, and number.
There are always three groups.
This problem is related to the card game Set. |
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CROSSREFS
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Adjacent-numbered pages:
BP1133 BP1134 BP1135 BP1136 BP1137  *  BP1139 BP1140 BP1141 BP1142 BP1143
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KEYWORD
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nice, precise, allsorted, notso, preciseworld
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CONCEPT
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all (info | search), number (info | search), same (info | search), two (info | search), three (info | search)
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AUTHOR
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William B Holland
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BP1145 |
| Polygon that can be achieved by folding a square once vs. other polygons. |
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BP1147 |
| Columns of the table could be respectively labeled "Number" and "Number of times number appears in this table" vs. not so. |
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BP1148 |
| Number of dots in the Nth box (from the left) is how many times the number (N - 1) appears in the whole diagram vs. not so. |
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COMMENTS
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Left-sorted examples are sometimes called autobiographical or self-descriptive numbers. |
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REFERENCE
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https://oeis.org/A349595
https://en.wikipedia.org/wiki/Self-descriptive_number |
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CROSSREFS
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See BP1147 for a similar idea.
BP1149 was inspired by this.
Adjacent-numbered pages:
BP1143 BP1144 BP1145 BP1146 BP1147  *  BP1149 BP1150 BP1151 BP1152 BP1153
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KEYWORD
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nice, precise, unwordable, notso, handed, leftright, left-narrow, sequence, preciseworld, left-listable, right-listable
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CONCEPT
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self-reference (info | search)
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AUTHOR
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Leo Crabbe
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BP1149 |
| Number in the Nth box (from the left) is how many numbers appear N times vs. not so. |
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CROSSREFS
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Inspired by BP1148.
Adjacent-numbered pages:
BP1144 BP1145 BP1146 BP1147 BP1148  *  BP1150 BP1151 BP1152 BP1153 BP1154
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KEYWORD
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nice, precise, unwordable, notso, handed, leftright, left-narrow, sequence, preciseworld, left-listable, right-listable
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CONCEPT
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self-reference (info | search)
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AUTHOR
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Aaron David Fairbanks
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