. . .
Left examples have the keyword "leftright" on the OEBP.
See updown.
All "leftright" Bongard Problems are handed.
Adjacent-numbered pages: BP530 BP531 BP532 BP533 BP534  *  BP536 BP537 BP538 BP539 BP540
meta (see left/right), links, keyword, sideless, invariance
handed_visualbp [smaller | same | bigger]
Aaron David Fairbanks