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[[Category:Unsolvable puzzles]] ...

{{Puzzles |Types}} ...les]]. However, the mechanical fixtures are usually not essential to these puzzles; the parts could as well be tokens on a flat board that are moved according ...

| genre = Games, Puzzles ...w.intotheabyss.net/ IntoTheAbyss.net]. A community forum devoted to visual puzzles, especially Christopher Manson's ''Maze''. ...

...{{harvnb|Norris|1985|loc=p.207}} "One often encounters Eulerian graphs as puzzles. Consider the famous floor plan that consists of five rooms interconnected ...rison of the graphs of the Seven bridges of Konigsberg (top) and Five-room puzzles (bottom). The numbers denote the number of edges connected to each vertex. ...

...e back of the box featured ridiculous, and sometimes unsolvable, games and puzzles,<ref name="cerealbox2">{{cite web |url=https://www.flickr.com/photos/jasonl ...

...he visitor to deduce the inhabitants' type from their statements, but some puzzles of this type ask for other facts to be deduced. The puzzle may also be to ..."da" mean "yes" and "no" but does not know which is which. These types of puzzles were a major inspiration for what has become known as "[[the hardest logic ...

...column. If a selected column doesn't have any rows, the current matrix is unsolvable and must be backtracked. When an elimination occurs, all columns for which ...Algorithm X and Dancing Links. Includes examples for sudoku and logic grid puzzles. ...

...ence class]]es of the same size. This means that half of all positions are unsolvable, although it says nothing about the remaining half. ...https://cornellmath.wordpress.com/2008/01/27/puzzles-groups-and-groupoids/ Puzzles, Groups, and Groupoids], The Everything Seminar</ref><ref>[http://www.never ...

...1907.<ref>{{Cite web |title=The Project Gutenberg eBook of The Canterbury Puzzles, by Henry Ernest Dudeney |url=https://www.gutenberg.org/files/27635/27635-h ...hbarger /><ref>{{cite web| url = http://people.rit.edu/mecsma/Professional/Puzzles/Pentominoes/P-Intro.html| title = people.rit.edu - Introduction - polyomino ...

[[Category:Logic puzzles]] [[Category:Unsolvable puzzles]] ...

...rthand indication or [[Sign (semiotics)|signifier]], for a problem that is unsolvable. ...ite book |isbn = 0812921178|title = The Lady or the Tiger? And Other Logic Puzzles: Including a Mathematical Novel that Features Gödel's Great Discovery|last1 ...

...ain people, settle disputes, and find wise and just solutions to seemingly unsolvable problems. ...

...]] wrote that it was already an old problem. It is an [[List of impossible puzzles|impossible puzzle]]: it is not possible to connect all nine lines without a ...gnated pairs of houses and wells or fountains, as in modern [[numberlink]] puzzles.{{r|fountains}} Loyd's puzzle "The Quarrelsome Neighbors" similarly involve ...

...ll monsters without being killed; other rooms require solving more complex puzzles, thanks to game elements such as orbs that open and close doors, trapdoors ...after with versions 1.04 and 1.11 to fix some [[Bug (software)|bugs]] with unsolvable rooms and levels. This early version is commonly known as ''Webfoot DROD''. ...

[[Category:Puzzles]] [[Category:Unsolvable puzzles]] ...

...ded to make a real treasure, of gold, bury it in the ground and paint real puzzles to lead people to it. The key was to be [[Catherine of Aragon]]'s Cross at ...]], ''[[Hareraiser]]''. The company and its game (which many believe to be unsolvable with only meaningless text and graphics), were unsuccessful, yielding no wi ...

Because it is defined in simple terms, but complex to prove unsolvable, the problem of angle trisection is a frequent subject of [[pseudomathemati [[Category:Unsolvable puzzles]] ...

[[Category:Unsolvable puzzles]] ...

...ile exploring [[maze]]-like [[dungeon crawl|dungeons]], solving occasional puzzles and riddles, and finding or buying better [[weapon]]s, [[armor]], and other ...n needed|date=July 2022}}. A number of obligatory puzzles in the game were unsolvable without the use of bard songs.{{cn|date=February 2024}} Each bard song trig ...

...in 2021. ''Sokoban'' has inspired unofficial versions, thousands of custom puzzles, similar games, and artificial intelligence research. ...ished ''Sokoban Extra Edition'' as a [[type-in program]] featuring ten new puzzles. This game was developed by Thinking Rabbit under request.<ref>{{cite magaz ...