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puzzle
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{{short description|Problem or enigma that tests the ingenuity of the solver}}{{Puzzles|Types}}{{other uses}}A puzzle is a game, problem, or toy that tests a person's ingenuity or knowledge. In a puzzle, the solver is expected to put pieces together in a logical way, in order to arrive at the correct or fun solution of the puzzle. There are different genres of puzzles, such as crossword puzzles, word-search puzzles, number puzzles, relational puzzles, or logic puzzles.Puzzles are often created to be a form of entertainment but they can also arise from serious mathematical or logistical problems. In such cases, their solution may be a significant contribution to mathematical research.Kendall G.; Parkes A.; and Spoerer K. (2008) A Survey of NP-Complete Puzzles, International Computer Games Association Journal, 31(1), pp 13â€“34.

## Etymology

The 1989 edition of the Oxford English Dictionary dates the word puzzle (as a verb) to the end of the 16th century. Its first documented use (to describe a new type of game) was in a book titled The Voyage of Robert Dudley...to the West Indies, 1594â€“95, narrated by Capt. Wyatt, by himself, and by Abram Kendall, master (published circa 1595). The word later came to be used as a noun.The word puzzle comes from pusle, meaning "bewilder, confound", which is a frequentive of the obsolete verb pose (from Medieval French aposer) in the sense of "perplex". The use of the word to mean "a toy contrived to test one's ingenuity" is relatively recent (within mid-19th century).

## Genres

(File:Set of various puzzles.jpg|thumb|Various puzzles)Puzzles can be divided into categories. For example, a maze is a type of tour puzzle. Some other categories are construction puzzles, stick puzzles, tiling puzzles, disentanglement puzzles, lock puzzles, folding puzzles, combination puzzles, and mechanical puzzles.

## Puzzle solving

{{Original research section|date=November 2018}}Solutions of puzzles often require the recognition of patterns and the adherence to a particular kind of ordering. People with a high level of inductive reasoning aptitude may be better at solving such puzzles than others. But puzzles based upon inquiry and discovery may be solved more easily by those with good deduction skills. Deductive reasoning improves with practice. Mathematical puzzles often involves BODMAS. BODMAS is an acronym and it stands for Bracket, Of, Division, Multiplication, Addition and Subtraction. In certain regions, PEDMAS (Parentheses, Exponents, Division, Multiplication, Addition and Subtraction) is the synonym of BODMAS. It explains the order of operations to solve an expression. Some mathematical puzzle requires Top to Bottom convention to avoid the ambiguity in the order of operations. It is an elegantly simple idea that relies, as sudoku does, on the requirement that numbers appear only once starting from top to bottom as coming along.{{Citation needed|date=November 2018}}

## Puzzle makers

Puzzle makers are people who make puzzles. In general terms of occupation, a puzzler is someone who composes and/or solves puzzles.Some notable creators of puzzles are:

## History of jigsaw puzzles

Jigsaw puzzles are perhaps the most popular form of puzzle. Jigsaw puzzles were invented around 1760, when John Spilsbury, a British engraver and cartographer, mounted a map on a sheet of wood, which he then sawed around the outline of each individual country on the map. He then used the resulting pieces as an aid for the teaching of geography.After becoming popular among the public, this kind of teaching aid remained the primary use of jigsaw puzzles until about 1820.History of Jigsaw Puzzles The American Jigsaw Puzzle SocietyThe largest puzzle (40,320 pieces) is made by German game company Ravensburger.WEB,weblink The worlds biggest Puzzle {{!, Ravensburger|website=www.ravensburger.us|language=en|access-date=2018-06-23}} The smallest puzzle ever made was created at LaserZentrum Hannover. It is only five square millimetres, the size of a sand grain.

## History of other puzzles

By the early 20th century, magazines and newspapers had found that they could increase their readership by publishing puzzle contests, beginning with crosswords and in modern days sudoku.

## Organizations and events

There are organizations and events that cater to puzzle enthusiasts, such as:

• {{annotated link|List of impossible puzzles}}
• {{annotated link|List of Nikoli puzzle types}}

## References

{{Reflist}}

{{Wiktionary|puzzle}} {{Authority control}}

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