Represented are Bongard Problems and an extra object to sort, a.k.a. the Bongard's Dozen format.
A variety of kinds of ambiguities showcased as left examples.
Object below ambiguously sorted (not clearly left or right) by Bongard Problem image above vs. object below clearly sorted by Bongard Problem image above.
Aaron David Fairbanks
Bongard Problems with world "nothing" vs. other Bongard Problems.
There is only one possible Problem like this, and it is invalid.
This world is automatically added as a subworld of any world.
Automatically added as a subworld of any world on the corresponding worldclass (left-BP826) page.
Bongard Problems with world "nothing"