login
Hints
(Greetings from The On-Line Encyclopedia of Bongard Problems!)
BP264 Closed area vs. no closed area.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP259 BP260 BP261 BP262 BP263  *  BP265 BP266 BP267 BP268 BP269

CONCEPT closed_open (info | search),
hole (info | search)

WORLD

arial_font_centered_symbol [smaller | same | bigger]

AUTHOR

Merse E. Gáspár

Welcome | Solve | Browse | Lookup | Recent | Links | Register | Contact
Contribute | Keywords | Concepts | Worlds | Ambiguities | Transformations | Invalid Problems | Style Guide | Goals | Glossary