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Bongard Problems sorted left have the keyword "bordercontent" on the OEBP.
All of Bongard's original Problems have whitespace around the border of all examples.
Adjacent-numbered pages: BP1191 BP1192 BP1193 BP1194 BP1195  *  BP1197 BP1198 BP1199 BP1200 BP1201
meta (see left/right), links, keyword
Aaron David Fairbanks
Bongard Problems sorted left have the keyword "dithering" on the OEBP.
Bongard's original Problems never involved shades of gray. They were just black and white drawings.
Adjacent-numbered pages: BP1193 BP1194 BP1195 BP1196 BP1197  *  BP1199 BP1200 BP1201 BP1202 BP1203