Two drawn polyhedra are duals vs. not so.

Aaron David Fairbanks

These should all be literalgeometry Problems (left-BP913).

Left examples are Bongard Problems are about arrangements of pixels. We don't include Bongard Problems about shapes in this category because those problems would sort ideal smooth images (the examples for those Problems would be better expressed in .svg).

Assumed square bounding box.

Bongard Problems with "world" black and white bitmap image vs. other Bongard Problems.

These Bongard Problems are about arrangements of pixels.

Assumed square bounding box.

Aaron David Fairbanks

Circle tends towards infinite radius the closer it is to center of panel and zero radius the closer it is to edge of panel vs. circle tends towards zero radius the closer it is to center of panel and infinite radius the closer it is to edge of panel

Leo Crabbe