The On-Line Encyclopedia of Bongard Problems

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BP1197

No sequence is repeated twice in a row vs. some sequence is repeated twice in a row.

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	REFERENCE	`https://en.wikipedia.org/wiki/Square-free_word`
	CROSSREFS	`Adjacent-numbered pages: BP1192 BP1193 BP1194 BP1195 BP1196 * BP1198 BP1199 BP1200 BP1201 BP1202`
	KEYWORD	`precise, allsorted, notso, left-narrow, sequence, traditional, preciseworld, dithering, left-listable`
	CONCEPT	`two (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP1223

Center square is black vs. center square is white.

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	COMMENTS	`All examples are a three by three grid of black or white squares.`
	CROSSREFS	`Adjacent-numbered pages: BP1218 BP1219 BP1220 BP1221 BP1222 * BP1224 BP1225 BP1226 BP1227 BP1228`
	KEYWORD	`stub, left-finite, right-finite, traditional, finishedexamples, fixedgrid, preciseworld`
	CONCEPT	`outlined_filled (info \| search),` `center (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP1269

Identical pairs of symbols are always on opposite sides of the cube (when assembled) vs. some identical symbols are next to each other on the cube.

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	CROSSREFS	`Adjacent-numbered pages: BP1264 BP1265 BP1266 BP1267 BP1268 * BP1270 BP1271 BP1272 BP1273 BP1274`
	KEYWORD	`left-finite, right-finite, finishedexamples, preciseworld`
	CONCEPT	`cube (info \| search),` `correspondence (info \| search),` `3d_net (info \| search),` `3d_solid (info \| search)`
	AUTHOR	`Leo Crabbe`

BP1279

Circled points are all possible vertices a square with a particular side length can take, provided that each of its corners lie on a grid point vs. not so.

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	COMMENTS	`Rotation of the square is allowed.`
	CROSSREFS	`See BP1280 for version with hexagons on a hexagonal grid.` `Adjacent-numbered pages: BP1274 BP1275 BP1276 BP1277 BP1278 * BP1280 BP1281 BP1282 BP1283 BP1284`
	KEYWORD	`hard, precise, allsorted, unwordable, hardsort, left-finite, right-finite, left-full, fixedgrid, preciseworld`
	CONCEPT	`square (info \| search)`
	AUTHOR	`Leo Crabbe`

BP1280

Circled points are all possible vertices a regular hexagon with a particular side length can take, provided that each of its corners lie on a grid point vs. not so.

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CROSSREFS

See BP1279 for version with squares on a square grid.

Adjacent-numbered pages: BP1275 BP1276 BP1277 BP1278 BP1279 * BP1281 BP1282 BP1283 BP1284 BP1285

KEYWORD

hard, precise, allsorted, unwordable, hardsort, left-finite, right-finite, preciseworld

AUTHOR

Leo Crabbe

BP1281

Circled points are all possible vertices an equilateral triangle with a particular side length can take, provided that each of its corners lie on a grid point vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP1276 BP1277 BP1278 BP1279 BP1280 * BP1282 BP1283 BP1284 BP1285 BP1286`
	KEYWORD	`unwordable, left-finite, right-finite, preciseworld`
	CONCEPT	`triangle (info \| search)`
	AUTHOR	`Leo Crabbe`

BP1286

One frame rate vs. another.

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	COMMENTS	`In particular, 40fps vs. 20fps.`
	CROSSREFS	`Adjacent-numbered pages: BP1281 BP1282 BP1283 BP1284 BP1285 * BP1287 BP1288 BP1289 BP1290`
	KEYWORD	`stub, precise, arbitrary, antihuman, animated, contributepairs, right-couldbe, preciseworld`
	AUTHOR	`Leo Crabbe`

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