The On-Line Encyclopedia of Bongard Problems

BP1169

Visual Bongard Problems where flipping over the horizontal axis (up/down) renders any example unsortable vs. visual Bongard Problems where some example can be flipped over the horizontal axis and remain sorted.

BP1157

(edit; present; nest [left/right]; search; history)

	CROSSREFS	`Adjacent-numbered pages: BP1164 BP1165 BP1166 BP1167 BP1168 * BP1170 BP1171 BP1172 BP1173 BP1174`
	KEYWORD	`notso, meta (see left/right), links, problemkiller`
	AUTHOR	`Leo Crabbe`

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