Archimedean tiling (regular polygons, all vertices look the same) versus two-uniform tiling (regular polygons, two different kinds of vertex).

Archimedean tiling (all vertices look the same) versus two-uniform tiling (two different kinds of vertex).

Archimedean tiling (all vertices look the same) with two regular polygons versus two-uniform tiling (two different kinds of vertex) with two regular polygons.

Archimedean tiling (all vertices look the same, two regular polygons) versus two-uniform tiling (two different kinds of vertex) with two regular polygons.

Aaron David Fairbanks

Bongard Problems with "world" outline of shape as described in BP529, but with the further restriction that it must be small with respect to the bounding box, vs. other Bongard Problems.

This is a specific parsing of the world. It is possible the world would instead be parsed as BP529. BP pages listing this as their world may list that world also as an alternative option.

Aaron David Fairbanks