The On-Line Encyclopedia of Bongard Problems

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BP1096

Line between ends intersects symbol vs. not

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

	CROSSREFS	`Adjacent-numbered pages: BP1091 BP1092 BP1093 BP1094 BP1095 * BP1097 BP1098 BP1099 BP1100 BP1101`
	WORLD	`arial_font_centered_connected_symbol_two_ends [smaller \| same \| bigger]`
	AUTHOR	`Jago Collins`

BP1095

Angle of incidence equals angle of reflection vs. not

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

	REFERENCE	`https://en.wikipedia.org/wiki/Specular_reflection` `https://en.wikipedia.org/wiki/Snooker`
	CROSSREFS	`Adjacent-numbered pages: BP1090 BP1091 BP1092 BP1093 BP1094 * BP1096 BP1097 BP1098 BP1099 BP1100`
	KEYWORD	`easy, nice, precise, allsorted, physics, perfect`
	AUTHOR	`Jago Collins`

BP1094

Convex hulls intersect vs. not

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

	CROSSREFS	`Adjacent-numbered pages: BP1089 BP1090 BP1091 BP1092 BP1093 * BP1095 BP1096 BP1097 BP1098 BP1099`
	KEYWORD	`precise, perfect, unorderedpair`
	CONCEPT	`convex_hull (info \| search),` `overlap (info \| search)`
	AUTHOR	`Jago Collins`

BP1093

"Inverted symmetry" present vs. not

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

	CROSSREFS	`Adjacent-numbered pages: BP1088 BP1089 BP1090 BP1091 BP1092 * BP1094 BP1095 BP1096 BP1097 BP1098`
	KEYWORD	`nice, precise, allsorted, boundingbox, left-narrow, right-null, perfect, pixelperfect, preciseworld, bordercontent, blackwhiteinvariant`
	CONCEPT	`black_white_inversion (info \| search)`
	WORLD	`[smaller \| same \| bigger]`
	AUTHOR	`Jago Collins`

BP1091

Rubik's Cubes which are solvable vs. not

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

	CROSSREFS	`Adjacent-numbered pages: BP1086 BP1087 BP1088 BP1089 BP1090 * BP1092 BP1093 BP1094 BP1095 BP1096`
	EXAMPLE	`A cube which is solved apart from one edge flipped, or one corner twisted, would be unsolveable and so would fit on the right.`
	KEYWORD	`stub`
	AUTHOR	`Jago Collins`

BP1089

Equal number of black and white pixels vs. not

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

	CROSSREFS	`Adjacent-numbered pages: BP1084 BP1085 BP1086 BP1087 BP1088 * BP1090 BP1091 BP1092 BP1093 BP1094`
	KEYWORD	`nice, precise, allsorted, boundingbox, right-null, perfect, pixelperfect, help, preciseworld, bordercontent, blackwhiteinvariant`
	WORLD	`[smaller \| same \| bigger]`
	AUTHOR	`Jago Collins`

BP1072

Filled subsection is largest square that divides the grid vs. not so

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

	REFERENCE	`https://en.wikipedia.org/wiki/Greatest_common_divisor`
	CROSSREFS	`Any example in this BP is a left example of BP1057.` `Adjacent-numbered pages: BP1067 BP1068 BP1069 BP1070 BP1071 * BP1073 BP1074 BP1075 BP1076 BP1077`
	KEYWORD	`grid, left-listable, right-listable`
	CONCEPT	`division (info \| search)`
	WORLD	`[smaller \| same \| bigger]`
	AUTHOR	`Jago Collins`

BP1064

Each large shape is made up of small shapes which are the same shape as the other large shape vs. not so

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

CROSSREFS

See BP188 for single shapes made of themselves vs. not.

Adjacent-numbered pages: BP1059 BP1060 BP1061 BP1062 BP1063 * BP1065 BP1066 BP1067 BP1068 BP1069

KEYWORD

nice, notso

AUTHOR

Jago Collins

BP1057

Filled subsection divides the grid vs. not so

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

	CROSSREFS	`Adjacent-numbered pages: BP1052 BP1053 BP1054 BP1055 BP1056 * BP1058 BP1059 BP1060 BP1061 BP1062`
	KEYWORD	`math, grid, left-listable, right-listable`
	CONCEPT	`division (info \| search),` `tiling (info \| search)`
	WORLD	`zoom in left`
	AUTHOR	`Jago Collins`

BP1055

Equidiagonal quadrilaterals vs. non-equidiagonal quadrilaterals

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

	REFERENCE	`https://en.wikipedia.org/wiki/Equidiagonal_quadrilateral`
	CROSSREFS	`Adjacent-numbered pages: BP1050 BP1051 BP1052 BP1053 BP1054 * BP1056 BP1057 BP1058 BP1059 BP1060`
	KEYWORD	`hard, antihuman`
	WORLD	`fill_quadrilateral [smaller \| same \| bigger]`
	AUTHOR	`Jago Collins`

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