"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.

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

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. (They are about examples leaving the "world" of a Bongard Problem. See https://www.oebp.org/world.php .) - Aaron David Fairbanks, Jun 15 2023

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

An example could be unsortable because it no longer fits in with 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 that the Bongard Problems currently labeled "problemkiller" mostly deal with examples becoming unsortable because they no longer fit in with the format. (They are about examples leaving the "world" of a Bongard Problem. See https://www.oebp.org/world.php .) - Aaron David Fairbanks, Jun 15 2023

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

An example could be unsortable because it no longer fits in with 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 that these "problemkiller" BPs mostly deal with examples becoming unsortable because they no longer fit in with the format. (The examples leave the "world" of the Bongard Problem. See https://www.oebp.org/world.php .) - Aaron David Fairbanks, Jun 15 2023

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

An example could be unsortable because it no longer fits in with 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.

"Problemkiller" Bongard Problems are @notso Bongard Problems.

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

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.

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

See BP566 for a related idea.

See BP566 for the almost-opposite idea.

See BP566.

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

Meta Bongard Problems of the form "[transformation] applied to any example renders it unsortable vs. not so" vs. other meta Bongard Problems.

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

Leo Crabbe