Jigsaw puzzle – Wikipedia

type of tiling puzzle
For the Rolling Stones birdcall, see Jigsaw Puzzle ( song ) Person solving a saber saw puzzle A jigsaw puzzle is a tiling perplex that requires the assembly of much curiously shaped interlock and mosaiced pieces, each of which typically has a helping of a video ; when assembled, they produce a complete painting.

In the eighteenth century, jigsaw puzzles were created by painting a visualize on a flat, rectangular nibble of wood, then cutting it into minor pieces. Despite the diagnose, a jigsaw was never used. John Spilsbury, a London cartographer and engraver, is credited with commercialising saber saw puzzles around 1760. [ 1 ] They have since come to be made chiefly of cardboard. typical images on saber saw puzzles include scenes from nature, buildings, and repetitive designs— castles and mountains are common, a good as early traditional subjects. however, any visualize can be used. Artisan puzzle-makers and companies using technologies for one-off and little print-run puzzles utilize a wide image of subject topic, including optical illusions, unusual art, and personal photograph. In addition to traditional flat, planar puzzles, cubic puzzles have entered large-scale production, including spherical puzzles and architectural recreations. A range of jigsaw puzzle accessories including boards, cases, frames, and roll-up mat has become available to assist jigsaw puzzle enthusiasts. While most meet puzzles are disassembled for recycle, they can besides be attached to a backing with adhesive and displayed as art .

history [edit ]

[2][3]John Spilsbury ‘s “Europe divided into its kingdoms, etc.” (1766). He created the jigsaw puzzle for educational purposes, and called them “Dissected Maps”. John Spilsbury is believed to have produced the beginning jigsaw puzzle around 1760, using a marquetry experience. [ 1 ] early puzzles, known as dissections, were produced by mounting maps on sheets of hardwood and cutting along national boundaries, creating a puzzle utilitarian for teaching geography. [ 1 ] Royal govern Lady Charlotte Finch used such “ dissected maps ” to teach the children of King George III and Queen Charlotte [ 4 ] [ 5 ] Cardboard jigsaw puzzles appeared in the former 1800s, but were slow to replace wooden ones because manufacturers felt that cardboard puzzles would be perceived as low-quality, and because profit margins on wooden jigsaws were larger. [ 1 ]
british printed puzzle from 1874. The name “ jigsaw ” came to be associated with the perplex around 1880 when jigsaw became the tool of choice for cutting the shapes. Since fretsaws are distinct from saber saw, the mention appears to be a misnomer. [ 1 ]
Wooden jigsaw pieces, cut by hand Jigsaw puzzles soared in popularity during the Great Depression, as they provided a bum, durable, reclaimable form of entertainment. [ 1 ] [ 6 ] It was around this time that jigsaws evolved to become more complex and appealing to adults. [ 1 ] They were besides given away in merchandise promotions and used in advertising, with customers completing an trope of the advertise intersection. [ 1 ] [ 6 ] Sales of wooden puzzles fell after World War II as improved wages led to price increases, while improvements in manufacture processes made paperboard jigsaw more attractive. [ 6 ] demand for saber saw puzzles saw a rush, comparable to that of the Great Depression, during the COVID-19 pandemic ‘s stay-at-home orders. [ 7 ] [ 8 ]

modern construction [edit ]

Paperboard jigsaw pieces Most modern saber saw puzzles are made of paperboard as they are easier and cheaper to mass-produce. An enlarged photograph or printed reproduction of a paint or other planar artwork is glued to cardboard, which is then fed into a weight-lift. The press forces a set of hardened steel blades of the coveted design, called a puzzle die, through the board until in full cut. The puzzle die is a flat dining table, often made from plywood, with slot deletion or burned in the lapp human body as the knives that are used. The knives are set into the slots and covered in a compressible material, typically foam rubberize, which ejects the cut puzzle pieces. The cut summons is similar to making shape cookies with a cookie stonecutter. however, the forces involved are enormously greater : A distinctive 1000-piece puzzle requires upwards of 700 tons of pull to push the die through the display panel. Beginning in the 1930s, saber saw puzzles were cut using bombastic hydraulic presses that now cost hundreds of thousands of dollars. The accurate cuts gave a snug fit, but the cost limited jigsaw puzzle production to big corporations. recent roller-press methods achieve the same results at a lower monetary value. [ citation needed ] New engineering has besides enabled laser-cutting of wooden or acrylic saber saw puzzles. The advantage is that the puzzle can be custom-cut to any size or shape, with any number or average size of pieces. many museums have laser-cut acrylic puzzles made of some of their art so visiting children can assemble puzzles of the images on display. acrylic pieces are very durable, rainproof, and can withstand continued use without the trope degrade. besides, because the print and cut patterns are computer-based, missing pieces can well be remade. By the early on 1960s, Tower Press was the world ‘s largest jigsaw perplex godhead ; it was acquired by Waddingtons in 1969. [ 9 ] numerous smaller-scale puzzle makers work in artisanal styles, handcrafting and handcutting their creations. [ 10 ] [ 11 ] [ 12 ] [ 13 ]

Variations [edit ]

Jigsaw puzzle software allowing rotation of pieces A cubic puzzle composed of several planar puzzles stacked on top of one another A puzzle without a mental picture Jigsaw puzzles come in a variety of sizes. Among those marketed to adults, 300-, 500- and 750-piece puzzles are considered “ smaller ”. More twist, but however common, puzzles come in sizes of 1,000, 1,500, 2,000, 3,000, 4,000, 5,000, 6,000, 7,500, 8,000, 9,000, 13,200, 18,000, 24,000, 32,000 and 40,000 pieces. Jigsaw puzzles geared towards children typically have many fewer pieces and are typically much larger. For very youthful children, puzzles with arsenic few as 4 to 9 large pieces ( so as not to be a choking hazard ) are standard. They are normally made of wood or fictile for lastingness and can be cleaned without price. The most common layout for a thousand-piece puzzle is 38 pieces by 27 pieces, for an actual total of 1,026 pieces. Most 500-piece puzzles are 27 pieces by 19 pieces. A few puzzles are double-sided so they can be solved from either side—adding complexity, as the enthusiast must determine if they are looking at the right side of each objet d’art. “ family puzzles ” of 100–550 pieces use an categorization of small, medium and big pieces, with each size going in one commission or towards the middle of the puzzle. This allows a syndicate of different skill levels and hand sizes to work on the perplex together. Companies like Springbok, Cobble Hill, Ravensburger and Suns Out make this type of specialization puzzle. There are besides cubic jigsaw puzzles. many are made of wood or styrofoam and require the perplex to be solved in a especial order, as some pieces will not fit if others are already in place. One character of three-d saber saw puzzle is a perplex earth, much made of credit card. Like 2-D puzzles, the meet pieces form a single level, but the final shape is cubic. Most ball puzzles have designs representing ball-shaped shapes such as the Earth, the Moon, and diachronic ball of the Earth. besides common are puzzle boxes, simple cubic puzzles with a belittled drawer or box in the center for storage. Jigsaw puzzles can vary significantly in price depending on their complexity, number of pieces, and post. In the US, children ‘s puzzles can start around $ 5, while larger ones can be closer to $ 50. The most expensive puzzle to date was sold for $ US27,000 in 2005 at a charity auction for The Golden Retriever Foundation. [ 14 ] several word-puzzle games use pieces similar to those in saber saw puzzles. Examples include Alfa-Lek, Jigsaw Words, Nab-It !, Puzzlage, Typ-Dom, Word Jigsaw, and Yottsugo. [ 15 ] [ citation needed ]

Puzzle pieces [edit ]

A “ notion ” piece in a wooden jigsaw puzzle A 3D saber saw perplex many puzzles are termed “ fully interlocking ”, which means that adjacent pieces are connected so that they stay attached when one is turned. sometimes the joining is tight adequate to pick up a solved part by holding one piece. Some fully mesh puzzles have pieces of a like shape, with rounded check ( interjambs ) on opposite ends and corresponding indentations—called blanks —on the other two sides to receive the tab. other amply interlocking puzzles may have tabs and blanks variously arranged on each piece ; but they normally have four sides, and the numbers of tabs and blanks frankincense add up to four. Uniformly shaped amply interlocking puzzles, sometimes called “ japanese Style ”, are the most difficult because the differences in the pieces ‘ shapes are most elusive. [ citation needed ] Most jigsaw puzzles are square, orthogonal or round, with edge pieces with one straight or smoothly arch side, plus four corner pieces ( if the puzzle is feather or rectangular ). however, some puzzles have edge, and corner pieces cut like the rest, with no uncoiled sides, making it more challenging to identify them. other puzzles utilize more complex boundary pieces to form alone shapes when assembled, such as profiles of animals. The pieces of spherical jigsaw, like immersive view jigsaw, can be triangular-shaped, according to the rules of tessellation of the geoid primitive. Designer Yuu Asaka created “ Jigsaw Puzzle 29 ”. rather of four corner pieces, it has five. The perplex is made from pale blue sky acrylic without a movie. [ 16 ] It was awarded the Jury Honorable Mention of 2018 Puzzle Design Competition. [ 17 ] Because many puzzlers had solved it well, he created “ Jigsaw Puzzle 19 ” which composed lone with corner pieces as retaliation. [ 18 ] It was made with guileless green acrylic pieces without a picture. [ 19 ]

Calculating the number of border pieces [edit ]

Jigsaw puzzlers frequently want to know in advance how many molding pieces they are looking for to verify they have found all of them. Puzzle sizes are typically listed on commercially distributed puzzles but normally include the full number of pieces in the perplex and do not list the count of border or inside pieces. Puzzlers, therefore, calculate the total of border pieces. To calculate B ( bound pieces ) from P ( the entire musical composition count ), follow this method acting :

  1. List the prime factors of P.
    For a 513-piece jigsaw, the prime factorization tree is 3×3×3×19=513
  2. Take the square root of P and round off.

    513

    ≈ 22.6

    round to 23
  3. Look for numbers in the prime factor list within ±20% of the square root of P.
    1. Calculate 20% of the rounded square root of P.

      1

      5

      × 23 = 4.6

    2. Develop the range, ±20%, from the rounded square root of P.
      23 ±4.6 = 18.4 to 27.6
    3. Compare the range with the factor list. Define this as E1.
      The factor list shows 19 in the range.
  4. Determine the horizontal / vertical dimensions.
    • Divide P (the total number of pieces) by E1 to determine the horizontal / vertical dimensions, E1xE2.
      513 / 19 = 27
      This is probably a 19×27 puzzle.
    • Alternative method: take the remaining numbers from the prime factorization tree.
      3x3x3 = 27
  5. Add the four sides and subtract 4 to correct for the corner pieces, which would otherwise be counted in both the horizontal and vertical.
    27 × 2 + 19 × 2 – 4 = 88

These 88 border pieces include 4 corners, 17 pieces between corners on the curtly sides, and 25 between corners on the hanker sides. coarse puzzle dimensions :

  • 1000 piece puzzle: 1026 pieces, 126 border pieces (38×27)[20]

populace records [edit ]

Largest commercially available saber saw puzzles [edit ]

Pieces Name of puzzle Company Year Size [cm] Area [m2]
54,000 Travel by Art Grafika 2020 864 × 204 17.65
52,110 (No title: collage of animals) MartinPuzzle 2018 696 × 202 14.06
51,300 27 Wonders from Around the World Kodak 2019 869 × 191 16.60
48,000 Around the World Grafika 2017 768 × 204 15.67
42,000 La vuelta al Mundo Educa Borras 2017 749 × 157 11.76
40,320 Making Mickey Magic Ravensburger 2018 680 × 192 13.06
40,320 Memorable Disney Moments Ravensburger 2016 680 × 192 13.06
33,600 Wild Life Educa Borras 2014 570 × 157 8.95
32,000 New York City Window Ravensburger 2014 544 × 192 10.45
32,000 Double Retrospect Ravensburger 2010 544 × 192 10.45
24,000 Life, The greatest puzzle Educa Borras 2007 428 × 157 6.72

Largest-sized saber saw puzzles [edit ]

The global ‘s largest-sized saber saw puzzle measured 5,428.8 m2 ( 58,435 sq foot ) with 21,600 pieces, each measuring a Guinness World Records utmost size of 50 cm by 50 curium. It was assembled on 3 November 2002 by 777 people at the erstwhile Kai Tak Airport in Hong Kong. [ 21 ]

Largest jigsaw puzzle – most pieces [edit ]

The Guinness record of CYM Group in 2011 with 551,232 pieces The saber saw with the greatest number of pieces had 551,232 pieces and measured 14.85 × 23.20 meter ( 48 foot 8.64 in × 76 foot 1.38 in ). It was assembled on 25 September 2011 at Phú Thọ Indoor Stadium in Ho Chi Minh City, Vietnam, by students of the University of Economics, Ho Chi Minh City. It is listed by the Guinness World Records for the “ Largest Jigsaw Puzzle – most pieces ”, but as the intact jigsaw had been divided into 3,132 sections, each containing 176 pieces, which were reassembled and then connected, the claim is controversial. [ 22 ] [ 23 ]

company [edit ]

The logo of Wikipedia is a globe made out of jigsaw pieces. The incomplete sphere symbolizes the room to add new cognition. [ citation needed ] In the logo of the colombian Office of the Attorney General appears a jigsaw puzzle man in the foreground. They named it “ The Key Piece ” : “ The man of a puzzle is the proper symbol to visually represent the Office of the Attorney General because it includes the concepts of search, solution and answers that the entity pursues through the fact-finding activity. ” [ 24 ]

art and entertainment [edit ]

The central adversary in the Saw movie franchise is named Jigsaw. [ 25 ] In the 1933 Laurel and Hardy abruptly Me and My Pal, respective characters attempt to complete a big jigsaw puzzle. [ 26 ] Lost in Translation is a poem about a child putting together a saber saw puzzle, equally well as an interpretative puzzle itself. Life: A User’s Manual, Georges Perec ‘s most celebrated novel, tells as pieces of a puzzle a history about a jigsaw puzzle maker. Jigsaw Puzzle ( song ), sometimes spelled “ Jig-Saw Puzzle ” is a song by the rock and bun band The Rolling Stones, featured on their 1968 album Beggars Banquet. In ‘ ‘ Citizen Kane ‘ ’ Susan Alexander Kane ( Dorothy Comingore ) is reduced to spending her days completing jigsaw after the failure of her operatic career. After Kane ’ s death when ‘ ’ Xanadu ’ ’ is emptied, hundreds of jigsaw puzzles are discovered in the root cellar. Rhett And Link Do A Rainy Day Jigsaw Puzzle is a short-change video recording by self-described “ internetainers ” ( portmanteau of “ Internet ” and “ entertainers ” ) Rhett & Link which portrays the frustration of discovering a puzzle musical composition is missing .

Mental health [edit ]

According to the Alzheimer Society of Canada, doing jigsaw puzzles is one of many activities that can help keep the brain active and may reduce the hazard of Alzheimer ‘s disease. [ 27 ]

An “ autism awareness ” decoration, featuring loss, amobarbital sodium, and yellow saber saw pieces Jigsaw puzzle pieces were first used as a symbol for autism in 1963 by the United Kingdom ‘s National Autistic Society. [ 28 ] The organization chose jigsaw pieces for their logo to represent the “ enigmatic ” nature of autism and the inability to “ fit in “ due to sociable differences, and besides because saber saw pieces were recognizable and differently fresh. [ 29 ] Puzzle pieces have since been incorporated into the logo and promotional materials of many organizations, including the Autism Society of America and Autism Speaks. Proponents of the autism rights campaign oppose the saber saw puzzle iconography, stating that metaphors such as “ puzzling ” and “ incomplete ” are harmful to autistic people. Critics of the puzzle assemble symbol rather advocate for a rainbow-colored eternity symbol representing diversity. [ 30 ] In 2017, the diary Autism concluded that the use of the jigsaw puzzle evoked veto public perception towards autistic individuals. They removed the puzzle piece from their cover in February 2018. [ 31 ]

See besides [edit ]

References [edit ]

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