The On-Line Encyclopedia of Bongard Problems

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Left shape is bigger than right shape vs. right shape is bigger than left shape.

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	CROSSREFS	`BP1217 has the same solution but rotated a quarter-turn counter-clockwise.` `Adjacent-numbered pages: BP1209 BP1210 BP1211 BP1212 BP1213 * BP1215 BP1216 BP1217 BP1218 BP1219`
	KEYWORD	`stub, dual, handed, leftright, traditional`
	CONCEPT	`size (info \| search),` `quantity_comparison (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP1216

Arrow pointing north-west vs. arrow pointing south-east.

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	CROSSREFS	`BP1218 is "arrow pointing north-west vs. arrow pointing elsewhere".` `Adjacent-numbered pages: BP1211 BP1212 BP1213 BP1214 BP1215 * BP1217 BP1218 BP1219 BP1220 BP1221`
	KEYWORD	`stub, precise, dual, handed, leftright, updown, rotate, left-narrow, right-narrow, traditional`
	CONCEPT	`diagonal (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP1217

Bottom shape is bigger than top shape vs. top shape is bigger than bottom shape.

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	CROSSREFS	`BP1214 has the same solution but rotated a quarter-turn clockwise.` `Adjacent-numbered pages: BP1212 BP1213 BP1214 BP1215 BP1216 * BP1218 BP1219 BP1220 BP1221 BP1222`
	KEYWORD	`stub, dual, handed, updown, traditional`
	CONCEPT	`size (info \| search),` `quantity_comparison (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP1245

When two players alternate coloring regions, either can force connection from top edge to bottom edge vs. either can force connection from left edge to right edge.

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	REFERENCE	`https://en.wikipedia.org/wiki/Hex_(board_game)`
	CROSSREFS	`Adjacent-numbered pages: BP1240 BP1241 BP1242 BP1243 BP1244 * BP1246 BP1247 BP1248 BP1249 BP1250`
	KEYWORD	`hard, precise, convoluted, dual, rotate, boundingbox, hardsort, challenge, proofsrequired, bordercontent`
	AUTHOR	`Aaron David Fairbanks`

BP1271

Positive correlation vs. negative correlation.

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	COMMENTS	`All examples in this Bongard Problem are scatter plots. Each dot represents a data point.` `"Positive correlation" means that when the X value increases, the Y value tends to increase as well (in the long run), while "negative correlation" means that when the X value increases, the Y value tends to decrease.`
	CROSSREFS	`Adjacent-numbered pages: BP1266 BP1267 BP1268 BP1269 BP1270 * BP1272 BP1273 BP1274 BP1275 BP1276`
	EXAMPLE	`Example TM4854 does not fit on either side because when the X value increases, the Y value stays the same.` `Example TM4855 does not fit on either side because there is no correlation.`
	KEYWORD	`fuzzy, minimal, unwordable, teach, spectrum, dual, handed, leftright, updown, rotate, stable, hardsort, left-narrow, right-narrow`
	AUTHOR	`Ben`

BP1272

Square minus circle vs. circle minus square.

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	COMMENTS	`All examples in this Bongard Problem are solid black shapes.`
	CROSSREFS	`BP345 is "Intersection of circle and square vs. union of circle and square."` `Adjacent-numbered pages: BP1267 BP1268 BP1269 BP1270 BP1271 * BP1273 BP1274 BP1275 BP1276 BP1277`
	EXAMPLE	`EX1 is ambiguous because it might be a small circle minus a large square, or a small square minus a large circle.`
	KEYWORD	`easy, nice, precise, dual`
	CONCEPT	`subtraction (info \| search),` `overlap (info \| search)`
	AUTHOR	`Ben`

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