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BP1164 Visual Bongard Problems where stretching (or compressing) any sorted example renders the example unsortable vs. visual Bongard Problems where some example can be stretched along some axis and remain sorted.
BP834
BP1062
BP1097
BP1105
BP1138
BP1155
BP95
BP1145
(edit; present; nest [left/right]; search; history)
COMMENTS

Left-sorted Problems often have a specific format or deal with specific geometric shapes.


Almost any Problem that sorts the all-white or all-black panels will be sorted right.

CROSSREFS

Adjacent-numbered pages:
BP1159 BP1160 BP1161 BP1162 BP1163  *  BP1165 BP1166 BP1167 BP1168 BP1169

KEYWORD

notso, meta (see left/right), links, problemkiller

WORLD

visualbp [smaller | same | bigger]

AUTHOR

Leo Crabbe

BP1165 Visual Bongard Problems where all possible sorted examples share a specific black region vs. not so.
BP159
BP244
BP294
BP303
BP314
BP315
BP316
BP346
BP376
BP505
BP790
BP791
BP801
BP805
BP825
BP839
BP850
BP927
BP934
BP944
BP1105
BP1157
BP211
BP337
BP359
BP972
BP1149
BP1153
BP1161
(edit; present; nest [left/right]; search; history)
CROSSREFS

Any miniproblems BP with all examples in the same format will be sorted left.

See also the keyword structure.

Adjacent-numbered pages:
BP1160 BP1161 BP1162 BP1163 BP1164  *  BP1166 BP1167 BP1168 BP1169 BP1170

KEYWORD

notso, meta (see left/right), links

WORLD

visualbp [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP1167 Visual Bongard Problems whose sorted examples all have the same amount of black and white in them vs. other visual Bongard Problems.
BP285
BP801
BP934
BP1017
BP1056
BP1155
BP1156
BP284
BP1089
(edit; present; nest [left/right]; search; history)
CROSSREFS

All left BPs would be tagged finishedexamples.

Adjacent-numbered pages:
BP1162 BP1163 BP1164 BP1165 BP1166  *  BP1168 BP1169 BP1170 BP1171 BP1172

KEYWORD

precise, notso, meta (see left/right), links, sideless

AUTHOR

Leo Crabbe

BP1169 Visual Bongard Problems where flipping over the horizontal axis (up/down) renders any example unsortable vs. visual Bongard Problems where some example can be flipped over the horizontal axis and remain sorted.
BP1157
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP1164 BP1165 BP1166 BP1167 BP1168  *  BP1170 BP1171 BP1172 BP1173 BP1174

KEYWORD

notso, meta (see left/right), links, problemkiller

AUTHOR

Leo Crabbe

BP1170 Meta Bongard Problems of the form "[transformation] applied to any example renders it unsortable vs. some example can remain sorted after [transformation]" vs. other meta Bongard Problems.
BP1142
BP1144
BP1164
BP1169
BP1171
BP1172
BP1173
(edit; present; nest [left/right]; search; history)
COMMENTS

Left-sorted Bongard Problems have the keyword "problemkiller" on the OEBP.


An example could be unsortable because it does not conform to the format of all the examples in the Bongard Problem, or it could be formatted like the other examples but be treated ambiguously by the solution. It seems the Bongard Problems currently labeled "problemkiller" mostly deal with examples becoming unsortable because they no longer conform to the format. (The examples become unsortable because they leave the "world" of the Bongard Problem. See https://www.oebp.org/world.php .) - Aaron David Fairbanks, Jun 15 2023

CROSSREFS

"Problemkiller" Bongard Problems are notso Bongard Problems.


See keyword invariance, which is about transformations making some example switch sides rather than transformations making all examples unsortable.

Adjacent-numbered pages:
BP1165 BP1166 BP1167 BP1168 BP1169  *  BP1171 BP1172 BP1173 BP1174 BP1175

KEYWORD

notso, meta (see left/right), links, keyword

WORLD

linksbp [smaller | same | bigger]

AUTHOR

Leo Crabbe

BP1172 Visual Bongard Problems where flipping over the vertical axis (left/right) renders any example unsortable vs. visual Bongard Problems where some example can be flipped over the vertical axis and remain sorted.
BP346
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP1167 BP1168 BP1169 BP1170 BP1171  *  BP1173 BP1174 BP1175 BP1176 BP1177

KEYWORD

notso, meta (see left/right), links, problemkiller

AUTHOR

Leo Crabbe

BP1173 Visual Bongard Problems where extending the bounding box of any example in any direction (in white space) renders it unsortable vs. visual Bongard Problems where some example can remain sorted under this transformation.
BP1095
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP1168 BP1169 BP1170 BP1171 BP1172  *  BP1174 BP1175 BP1176 BP1177 BP1178

KEYWORD

notso, meta (see left/right), links, problemkiller

AUTHOR

Leo Crabbe

BP1182 Meta Bongard Problems about object-wise comparison vs. other meta Bongard Problems.
BP787
BP908
BP909
BP928
BP929
BP1176
BP1177
BP1179
BP1180
BP1181
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP1177 BP1178 BP1179 BP1180 BP1181  *  BP1183 BP1184 BP1185 BP1186 BP1187

KEYWORD

notso, meta (see left/right), links

AUTHOR

Leo Crabbe

BP1185 Smaller section tiles the grid (element-wise rotation of tiles allowed) vs. not so.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP1180 BP1181 BP1182 BP1183 BP1184  *  BP1186 BP1187 BP1188 BP1189 BP1190

KEYWORD

precise, allsorted, notso, grid, miniworlds

CONCEPT element_wise_symmetry (info | search),
tiling (info | search)

AUTHOR

Leo Crabbe

BP1187 Smaller section tiles the grid vs. not so.
(edit; present; nest [left/right]; search; history)
CROSSREFS

See BP1185 for the version of this solution where element-wise rotation of tiles is allowed.

Adjacent-numbered pages:
BP1182 BP1183 BP1184 BP1185 BP1186  *  BP1188 BP1189 BP1190 BP1191 BP1192

KEYWORD

allsorted, notso, grid

CONCEPT element_wise_symmetry (info | search),
tiling (info | search)

AUTHOR

Leo Crabbe

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