See BP895 (@presentationmatters vs. @presentationinvariant) for a similar idea: there Bongard Problems are to Bongard Problem solutions as here 2D representations are to 3D objects.

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

Right-sorted Bongard Problems have the keyword "3d" on the OEBP.

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

Right-sorted Bongard Problems have the keyword "3d" on the OEBP.

Many examples currently on the left are of the form "2d representation defines a 3d object vs. not so" (BP252, BP385, BP993). I'm not sure that these really fit here. - Aaron David Fairbanks, May 08 2021

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

Right-sorted Bongard Problems have the keyword "3d" on the OEBP.

Bongard Problems about the properties of 2D representations of 3D objects vs. (still 2D) Bongard Problems about the properties of the 3D objects represented.

Bongard Problems about the properties of 2D representations of 3D objects vs. (still 2D) Bongard Problems about the properties of the represented 3D objects.

Bongard Problems about the properties of 2D representations of 3D objects vs. (still 2D) Bongard Problems about the properties of 3D objects.

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

See BP895 for a similar idea: there Bongard Problems are to Bongard Problem solutions as here 2D representations are to 3D objects.

See left-BP895 for a similar idea: there Bongard Problems are to Bongard Problem solutions as here 2D representations are to 3D objects.

See left-BP895 for a similar idea: there images of Bongard Problems are to Bongard Problem solutions as here 2D representations are to 3D objects.

2D Bongard Problems about the properties of 3D objects vs. 2D Bongard Problems about the properties of 2D representations of 3D objects.

See "semification" (left-BP895) for a similar idea: there images of Bongard Problems are to Bongard Problem solutions as here 2D representations are to 3D objects.