Note that most traditional Bongard Problems don't sort an all black-panel at all.

See BP567 (@left-null versus @right-null) for the version about all-white panels, which is more often applicable.

Note that most traditional Bongard Problems don't sort an all black-panel at all.

See BP567 for the version about all-white panels, which is more often applicable.

Note that most traditional Bongard Problems don't sort an all black-panel at all.

See left-BP567 for the version about all-white panels, which is more often applicable.

Note that most traditional Bongard Problems don't sort an all black panel at all.

Visual Bongard Problems that would sort an all-black panel on the left vs. visual Bongard Problems that would sort an all-black panel on the right.

Leo Crabbe