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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, and logic puzzles.
Puzzles are often created to be a form of entertainment but they can also arise from serious mathematical or logical problems. In such cases, their solution may be a significant contribution to mathematical research.
The Oxford English Dictionary dates the word puzzle (as a verb) to the end of the 16th century. Its earliest use documented in the OED was in a book titled The Voyage of Robert Dudley...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, 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'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.
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.
- 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.
- Jigsaw puzzles. Puzz 3D is a three-dimensional variant of this type.
- 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 three cups problem, and three utilities problem
- Mechanical puzzles such as the Rubik's Cube and Soma cube
- Metapuzzles are puzzles which unite elements of other puzzles.
- Paper-and-pencil puzzles such as Uncle Art's Funland, connect the dots, and nonograms
- Peg solitaire
- A puzzle box is a puzzle that can be used to hide something — jewelry, for instance.
- Rubik's Cube and other combination puzzles can be stimulating toys for children or recreational activities for adults.
- Sangaku (Japanese temple tablets with geometry puzzles)
- Sliding puzzles (also called sliding tile puzzles) such as the 15 Puzzle.
- Spot the difference
- Word puzzles, including anagrams, ciphers, crossword puzzles, Hangman (game), and word search puzzles. Tabletop and digital word puzzles include Bananagrams, Boggle, Bonza, Dabble, Letterpress (video game), Perquackey, Puzzlage, Quiddler, Ruzzle, Scrabble, Upwords, WordSpot, and Words with Friends. Wheel of Fortune (U.S. game show) is a game show centered on a word puzzle.
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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.
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
- Sam Loyd
- Henry Dudeney
- Boris Kordemsky
- David J. Bodycombe
- Will Shortz
- Lloyd King
- Martin Gardner
- Raymond Smullyan
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.
John Spilsbury, an engraver and mapmaker, was also credited with inventing the first jigsaw puzzle in 1767.
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.
History of other puzzles
Organizations and events
There are organizations and events that cater to puzzle enthusiasts, such as:
- Nob Yoshigahara Puzzle Design Competition
- World Puzzle Championship
- National Puzzlers' League
- Puzzlehunts such as the Maze of Games
- Kendall G.; Parkes A.; and Spoerer K. (2008) A Survey of NP-Complete Puzzles, International Computer Games Association Journal, 31(1), pp 13–34.
- "puzzle, n." OED Online. Oxford University Press, December 2019. Web. 21 January 2020.
- "puzzle, v." OED Online. Oxford University Press, December 2019. Web. 21 January 2020.
- "History of Puzzles | PuzzleWarehouse.com". www.puzzlewarehouse.com. Retrieved 2019-11-20.
- History of Jigsaw Puzzles Archived 2014-02-11 at the Wayback Machine The American Jigsaw Puzzle Society
- "The worlds biggest Puzzle | Ravensburger". www.ravensburger.us. Retrieved 2018-06-23.
- "A Brief History of Puzzles". Puzzle Museum. 6 April 2017. Archived from the original on 14 April 2020.
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