On the left, circles define a partition of the dots.
Each black filled circle belongs to exactly one large circle outline vs. not so.
Each black circle belongs to exactly one large circle outline vs. not so.
Aaron David Fairbanks
Bongard Problems with "world" Meta Bongard Problem vs. other Bongard Problems.
Bongard Problems with "world" is Meta Bongard Problem vs. other Bongard Problems.
Meta Meta Bongard Problems.
Bongard Problems that sort Bongard Problems that sort Bongard Problems.
539
540
Left examples are BPs whose "world" is left examples for BP537.
For all meta meta BPs see BP547.