login
Hints
(Greetings from The On-Line Encyclopedia of Bongard Problems!)
Search: BP384
Displaying 1-2 of 2 results found.     page 1
     Sort: relevance      Format: long      Filter: (all | no meta | meta)      Mode: (words | no words)
BP384 Square number of dots vs. non-square number of dots.
(edit; present; nest [left/right]; search; history)
COMMENTS

All examples in this Problem are a collection of dots.


An equivalent solution is "Dots can be arranged into a square lattice whose convex hull is a square vs. not so". - Leo Crabbe, Aug 01 2020

CROSSREFS

Adjacent-numbered pages:
BP379 BP380 BP381 BP382 BP383  *  BP385 BP386 BP387 BP388 BP389

EXAMPLE

A single dot fits because 1 = 1*1.

A pair of dots does not fit because there is no integer x such that 2 = x*x.

KEYWORD

nice, precise, allsorted, number, math, left-narrow, left-null, help, traditional, preciseworld

CONCEPT square_number (info | search)

WORLD

dots [smaller | same | bigger]

AUTHOR

Jago Collins

BP930 BP Pages on the OEBP where users are advised to upload examples that help people (by hinting at the solution) vs. other BP Pages.
BP334
BP349
BP382
BP384
BP569
BP829
BP892
BP945
BP988
BP989
BP1008
BP1016
BP1089
BP1102
BP1161
BP1168
(edit; present; nest [left/right]; search; history)
COMMENTS

Left examples have the keyword "help" on the OEBP.


BPs should be marked "help" when the OEBP wants most examples (at least on one side) to be helpful (not when just one or two uploaded examples are helpful).


Helpfulness can be a spectrum; most Bongard Problems are helpful to some degree just by not using the most convoluted unintelligible examples possible.


Examples that are helpful to people are often not particularly helpful to computers.


Any helpful Bongard Problem has a harder, not helpful version. For example, BP384 (square number of dots versus non-square number of dots) would be much harder if all examples had hundreds of dots that weren't arranged recognizably. Instead, the dots in the examples are always arranged in shapes that make the square-ness or non-square-ness of the numbers easy to check without brute counting.


When all examples in a Bongard Problem are helpful, it may become unclear whether the helpfulness is part of the Bongard Problem's solution.

E.g.: Is the left-hand side of BP384 "square number of dots", or is it "square number of dots that are arranged in a helpful way so as to communicate the square-ness"?


See seemslike, where examples being helpful is an irremovable aspect of the Bongard Problem's solution.

CROSSREFS

Adjacent-numbered pages:
BP925 BP926 BP927 BP928 BP929  *  BP931 BP932 BP933 BP934 BP935

KEYWORD

anticomputer, meta (see left/right), links, keyword, oebp, instruction

WORLD

bppage [smaller | same | bigger]
zoom in left (help_bp)

AUTHOR

Aaron David Fairbanks

    page 1

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