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

Right-sorted Bongard Problems have the keyword "presentationinvariant" on the OEBP.

Meta Bongard problems that sort Bongard Problems purely based on their solutions usually have two versions in the database: one that sorts images of Bongard Problems and one that sorts links to pages on the OEBP. If both versions exist, users should make them cross-reference one another. (Meta Bongard Problems that sort images of Bongard Problems have the keyword miniproblems, whereas meta Bongard Problems that sort links to OEBP pages have the keyword links.)

For meta-pages on the OEBP that sort other pages on the OEBP (keyword links), "presentationmatters" means factoring in content like the BP number, the currently uploaded examples, the wording of the title, the description, and so on, rather than just the solution (that is, how the page would sort all potential examples). This is unusual.

"One solution vs. multiple solutions" (BP828) seems like a border-case. - Aaron David Fairbanks, Aug 01 2020

See BP1010 (projectionmatters versus 3d) for a similar idea: there 2D representations are to 3D objects as here Bongard Problems are to Bongard Problem solutions.

Adjacent-numbered pages:
BP890 BP891 BP892 BP893 BP894  *  BP896 BP897 BP898 BP899 BP900

fuzzy, meta (see left/right), links, keyword, right-self, sideless, metameta, right-it, dependence, presentationinvariant

metabp [smaller | same | bigger]

Jago Collins

Right examples have the keyword "instruction" on the OEBP.

See also the keyword presentationmatters.

Adjacent-numbered pages:
BP962 BP963 BP964 BP965 BP966  *  BP968 BP969 BP970 BP971 BP972

meta (see left/right), links, keyword, oebp, left-self

keyword [smaller | same | bigger]

Aaron David Fairbanks

This is the "it" Problem.

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

Right-sorted Bongard Problems have the keyword "right-it" on the OEBP.

Left-it or right-it implies feedback.

Adjacent-numbered pages:
BP1068 BP1069 BP1070 BP1071 BP1072  *  BP1074 BP1075 BP1076 BP1077 BP1078

nice, meta (see left/right), links, keyword, side, metameta, feedback, time, experimental, funny, testexample, presentationinvariant

linksbp [smaller | same | bigger]

Aaron David Fairbanks

Left examples have the keyword "feedback" on the OEBP.

"Feedback" implies not wellfounded.

Left-it" or right-it implies "feedback".

Adjacent-numbered pages:
BP1069 BP1070 BP1071 BP1072 BP1073  *  BP1075 BP1076 BP1077 BP1078 BP1079

arbitrary, meta (see left/right), links, keyword, left-self, metameta, left-it, feedback, experimental

linksbp [smaller | same | bigger]

Aaron David Fairbanks

Adjacent-numbered pages:
BP1071 BP1072 BP1073 BP1074 BP1075  *  BP1077 BP1078 BP1079 BP1080 BP1081

meta (see left/right), links, metameta, testexample

linksbp [smaller | same | bigger]

Aaron David Fairbanks

Bongard Problems sorted left have the keyword "links" on the OEBP.

Bongard Problems sorted right have the keyword "miniproblems" on the OEBP.

The keyword "links" is automatically added to a Bongard Problem on the OEBP if a BP number is added as an example.

Meta Bongard problems that sort Bongard Problems purely based on their solutions (keyword presentationmatters) usually have two versions in the database: one that sorts images of Bongard Problems and one that sorts links to pages on the OEBP. If both versions exist, users should make them cross-reference one another.

All the examples of miniature Bongard Problems within any meta Bongard Problem tagged "miniproblems" would fit left on BP1080 (which is a showcase of the various formats for images of Bongard Problems).

Adjacent-numbered pages:
BP1121 BP1122 BP1123 BP1124 BP1125  *  BP1127 BP1128 BP1129 BP1130 BP1131

meta (see left/right), links, keyword, world, left-self, metameta

metabp [smaller | same | bigger]

Aaron David Fairbanks

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

"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

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

linksbp [smaller | same | bigger]

Leo Crabbe

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

BP517 ("sorts self left vs. sorts self right") does not quite fit left; it is about the sorting of a specific example, but a different example for every Bongard Problem.

testexample implies side.

Adjacent-numbered pages:
BP1237 BP1238 BP1239 BP1240 BP1241  *  BP1243 BP1244 BP1245 BP1246 BP1247

meta (see left/right), links, keyword, right-self, metameta, left-it

linksbp [smaller | same | bigger]

Aaron David Fairbanks