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A puzzle is a
game A game is a structured form of play, usually undertaken for entertainment or fun, and sometimes used as an educational tool. Many games are also considered to be work (such as professional players of spectator sports or games) or art (su ...
,
problem Problem solving is the process of achieving a goal by overcoming obstacles, a frequent part of most activities. Problems in need of solutions range from simple personal tasks (e.g. how to turn on an appliance) to complex issues in business an ...
, or toy that tests a person's ingenuity or
knowledge Knowledge can be defined as awareness of facts or as practical skills, and may also refer to familiarity with objects or situations. Knowledge of facts, also called propositional knowledge, is often defined as true belief that is disti ...
. In a puzzle, the solver is expected to put pieces together ( or take them apart) 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, and logic puzzles. The academic study of puzzles is called enigmatology. Puzzles are often created to be a form of entertainment but they can also arise from serious
mathematical Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
or logical problems. In such cases, their solution may be a significant contribution to mathematical research.


Etymology

The ''
Oxford English Dictionary The ''Oxford English Dictionary'' (''OED'') is the first and foundational historical dictionary of the English language, published by Oxford University Press (OUP). It traces the historical development of the English language, providing a com ...
'' dates the word ''puzzle'' (as a
verb A verb () is a word ( part of speech) that in syntax generally conveys an action (''bring'', ''read'', ''walk'', ''run'', ''learn''), an occurrence (''happen'', ''become''), or a state of being (''be'', ''exist'', ''stand''). In the usual descr ...
) to the end of the 16th century. Its earliest use documented in the ''OED'' was in a book titled ''The Voyage of
Robert Dudley Robert Dudley is the name of: Surname * Robert Dudley (actor) (1869–1955), American dentist and film character actor *Robert Dudley (explorer) (1574–1649), illegitimate son of the 1st Earl of Leicester *Robert Charles Dudley (1826–1909) wate ...
...to the West Indies, 1594–95, narrated by Capt. Wyatt, by himself, and by Abram Kendall, master'' (published circa 1595). The word later came to be used as a
noun A noun () is a word that generally functions as the name of a specific object or set of objects, such as living creatures, places, actions, qualities, states of existence, or ideas.Example nouns for: * Organism, Living creatures (including people ...
, first as an abstract noun meaning 'the state or condition of being puzzled', and later developing the meaning of 'a perplexing problem'. The ''OED''s earliest clear citation in the sense of 'a toy that tests the player's ingenuity' is from Sir
Walter Scott Sir Walter Scott, 1st Baronet (15 August 1771 – 21 September 1832), was a Scottish novelist, poet, playwright and historian. Many of his works remain classics of European and Scottish literature, notably the novels ''Ivanhoe'', '' Rob Roy' ...
's 1814 novel '' Waverley'', referring to a toy known as a "reel in a bottle". The etymology of the verb ''puzzle'' is described by ''OED'' as "unknown"; unproven hypotheses regarding its origin include an Old English verb ''puslian'' meaning 'pick out', and a derivation of the verb ''pose''.


Genres

Puzzles can be categorized as: * Lateral thinking puzzles, also called "situation puzzles" * Mathematical puzzles include the missing square puzzle and many impossible puzzles — puzzles which have no solution, such as the
Seven Bridges of Königsberg The Seven Bridges of Königsberg is a historically notable problem in mathematics. Its negative resolution by Leonhard Euler in 1736 laid the foundations of graph theory and prefigured the idea of topology. The city of Königsberg in Prussia (n ...
, the three cups problem, and three utilities problem **
Sangaku Sangaku or San Gaku ( ja, 算額, lit=calculation tablet) are Japanese geometrical problems or theorems on wooden tablets which were placed as offerings at Shinto shrines or Buddhist temples during the Edo period by members of all social class ...
(Japanese temple tablets with geometry puzzles) *A chess problem is a puzzle that uses chess pieces on a chess board. Examples are the knight's tour and the eight queens puzzle. *
Mechanical puzzle A mechanical puzzle is a puzzle presented as a set of mechanically interlinked pieces in which the solution is to manipulate the whole object or parts of it. While puzzles of this type have been in use by humanity as early as the 3rd century BC ...
s or dexterity puzzles such as the
Rubik's Cube The Rubik's Cube is a 3-D combination puzzle originally invented in 1974 by Hungarian sculptor and professor of architecture Ernő Rubik. Originally called the Magic Cube, the puzzle was licensed by Rubik to be sold by Pentangle Puzzles in t ...
and Soma cube can be stimulating toys for children or recreational activities for adults. ** combination puzzles like Peg solitaire ** construction puzzles such as stick puzzles ** disentanglement puzzles, ** folding puzzles **
jigsaw puzzle A jigsaw puzzle is a tiling puzzle that requires the assembly of often irregularly shaped interlocking and mosaiced pieces, each of which typically has a portion of a picture. When assembled, the puzzle pieces produce a complete picture. In t ...
s. Puzz 3D is a three-dimensional variant of this type. ** lock puzzles **A puzzle box can be used to hide something —
jewelry Jewellery (British English, UK) or jewelry (American English, U.S.) consists of decorative items worn for personal adornment, such as brooches, ring (jewellery), rings, necklaces, earrings, pendants, bracelets, and cufflinks. Jewellery may be at ...
, for instance. ** sliding puzzles (also called sliding tile puzzles) such as the 15 Puzzle and Sokoban ** tiling puzzles like Tangram **
Tower of Hanoi The Tower of Hanoi (also called The problem of Benares Temple or Tower of Brahma or Lucas' Tower and sometimes pluralized as Towers, or simply pyramid puzzle) is a mathematical game or puzzle consisting of three rods and a number of disks of v ...
* Metapuzzles are puzzles which unite elements of other puzzles. * Paper-and-pencil puzzles such as ''
Uncle Art's Funland ''Uncle Art's Funland'' (also known as ''Funland'' and as ''Uncle Nugent's Funland'') is a long-running syndicated weekly puzzle and entertainment feature originated by Art Nugent (1891–1975). Featuring jokes, riddles, and paper-and-pencil wor ...
'', connect the dots, and nonograms **Also the logic puzzles published by Nikoli:
Sudoku Sudoku (; ja, 数独, sūdoku, digit-single; originally called Number Place) is a logic-based, combinatorics, combinatorial number-placement puzzle. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each co ...
, Slitherlink, Kakuro, Fillomino, Hashiwokakero, Heyawake, Hitori, Light Up, Masyu, Number Link, Nurikabe,
Ripple Effect A ripple effect occurs when an initial disturbance to a system propagates outward to disturb an increasingly larger portion of the system, like ripples expanding across the water when an object is dropped into it. The ripple effect is often use ...
,
Shikaku {{nihongo, Shikaku, 四角に切れ, shikaku ni kire (also anglicised as ''Divide by Squares'' or ''Divide by Box'') is a logic puzzle published by Nikoli. As of 2011, two books consisting entirely of Shikaku puzzles has been published by Nikoli. ...
, and Kuromasu. *
Spot the difference Spot the difference is a type of puzzle where players must find a set number of differences between two otherwise similar images, whether they are illustrations or photographs that have been altered with photo manipulation. Spot the difference ...
* Tour puzzles like a maze * Word puzzles, including
anagram An anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once. For example, the word ''anagram'' itself can be rearranged into ''nag a ram'', also the word ...
s, ciphers, crossword puzzles, Hangman (game), and word search puzzles. Tabletop and digital word puzzles include Bananagrams,
Boggle ''Boggle'' is a word game invented by Allan Turoff and originally distributed by Parker Brothers. The game is played using a plastic grid of lettered dice, in which players look for words in sequences of adjacent letters. Rules One player be ...
, Bonza, Dabble, Letterpress (video game), Perquackey, Puzzlage, Quiddler, Ruzzle,
Scrabble ''Scrabble'' is a word game in which two to four players score points by placing tiles, each bearing a single letter, onto a game board divided into a 15×15 grid of squares. The tiles must form words that, in crossword fashion, read left ...
, Upwords, WordSpot, and Words with Friends. Wheel of Fortune (U.S. game show) is a game show centered on a word puzzle. * Puzzle video games ** Tile-matching video game **
Puzzle-platformer A platform game (often simplified as platformer and sometimes called a jump 'n' run game) is a sub-genre of action game, action video games in which the core objective is to move the player character between points in an environment. Platform game ...
** Adventure game **
Hidden object game A hidden object game, also called hidden picture or hidden object puzzle adventure (HOPA), is a puzzle video game genre in which the player must find items from a list that are hidden within a scene. Hidden object games are a popular trend in casu ...
**
Minesweeper A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of ...


Puzzle solving

Solutions of puzzles often require the recognition of
pattern A pattern is a regularity in the world, in human-made design, or in abstract ideas. As such, the elements of a pattern repeat in a predictable manner. A geometric pattern is a kind of pattern formed of geometric shapes and typically repeated li ...
s 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 involve BODMAS. BODMAS is an acronym and it stands for Bracket, Of, Division, Multiplication, Addition and Subtraction. In certain regions, PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition and Subtraction) is the synonym of BODMAS. It explains the order of operations to solve an expression. Some mathematical puzzles require Top to Bottom convention to avoid the
ambiguity Ambiguity is the type of meaning in which a phrase, statement or resolution is not explicitly defined, making several interpretations plausible. A common aspect of ambiguity is uncertainty. It is thus an attribute of any idea or statement w ...
in the order of operations. It is an elegantly simple idea that relies, as
sudoku Sudoku (; ja, 数独, sūdoku, digit-single; originally called Number Place) is a logic-based, combinatorics, combinatorial number-placement puzzle. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each co ...
does, on the requirement that numbers appear only once starting from top to bottom as coming along.


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: *
Ernő Rubik Ernő Rubik (; born 13 July 1944) commonly known by his nickname, "Little Man", is a Hungarian inventor, architect and professor of architecture. He is best known for the invention of mechanical puzzles including the Rubik's Cube (1974), Rubik ...
* Sam Loyd * Henry Dudeney * Boris Kordemsky * David J. Bodycombe * Will Shortz * Oskar van Deventer * Lloyd King *
Martin Gardner Martin Gardner (October 21, 1914May 22, 2010) was an American popular mathematics and popular science writer with interests also encompassing scientific skepticism, micromagic, philosophy, religion, and literatureespecially the writings of L ...
* Raymond Smullyan


History of jigsaw and other puzzles

Jigsaw puzzle A jigsaw puzzle is a tiling puzzle that requires the assembly of often irregularly shaped interlocking and mosaiced pieces, each of which typically has a portion of a picture. When assembled, the puzzle pieces produce a complete picture. In t ...
s 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. The largest puzzle (40,320 pieces) is made by German game company Ravensburger. The smallest puzzle ever made was created at LaserZentrum Hannover. It is only five square millimeters, the size of a sand grain. The puzzles that were first documented are riddles. In Europe, Greek mythology produced riddles like the riddle of the Sphinx. Many riddles were produced during the Middle Ages, as well. By the early 20th century, magazines and newspapers found that they could increase their readership by publishing
puzzle contest Puzzle contests are popular competitions in which the objective is to solve a puzzle within a given time limit, and to obtain the best possible score among all players. History One of the earliest puzzle contests was held about 1910. The publish ...
s, beginning with crosswords and in modern days
sudoku Sudoku (; ja, 数独, sūdoku, digit-single; originally called Number Place) is a logic-based, combinatorics, combinatorial number-placement puzzle. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each co ...
.


Organizations and events

There are organizations and events that cater to puzzle enthusiasts, such as: *
Nob Yoshigahara Puzzle Design Competition Nob Yoshigahara Puzzle Design Competition is an annual award and competition in the engineering and design of mechanical puzzles. The location of the competition rotates between North America, Europe, and Japan. It was founded in 2001, and h ...
* World Puzzle Championship * National Puzzlers' League * Puzzlehunts such as the
Maze of Games The Maze of Games is one of America's largest annual puzzlehunts, and is held at the Gen Con and Origins gaming conventions. Started in 1995 as an offshoot of LIVE/WIRE, the Maze of Games has been the largest event at one or both of those conventi ...
* World Cube Association


See also

* * *


References


Further reading

*


External links

{{Authority control Problem solving