Stewart Coffin is an American puzzle maker. According to Ars Technica, he is considered to be one of the "best designers of polyhedral interlocking puzzles in the world." [1]
Coffin majored in electrical engineering in college [2] at the University of Massachusetts at Amherst where he graduated in 1953. [3] He worked at the Lincoln Laboratory at the Massachusetts Institute of Technology (MIT) building computers from 1953 through 1958. [2] In 1964, he left electronics to start building canoes and other boats. He and his family moved to a farm in Lincoln, Massachusetts. [2]
Coffin currently lives in Carlisle, Massachusetts, where he moved to in 2021. He has three daughters, all of whom are very good at solving his puzzles. [4] [5]
Coffin began creating puzzles in 1968, after quitting the design and manufacture of canoes and kayaks. [4] One of the puzzles he created, made of 12 hexagonal sticks and cast in epoxy, was brought to school by one of his three daughters. [4] This event led to Coffin meeting Thomas Atwater who was a business agent for inventors of games and puzzles. [4] When 3M showed an interest in his work, he decided to quit making boats and concentrate on puzzles. Hectix, one of his designs, was patented in the United States in 1973 [6] and then manufactured by 3M. [7] When they were manufactured, the design was so complex that factory workers were unable to assemble them. [2] The parts were shipped to his Lincoln residence where he, his daughters and neighborhood children all put them together, making 20,000 puzzles in two weeks. [2]
Later, Coffin stopped patenting his puzzles because he did not feel he could make a living by designing products for mass production. [4] Instead he turned to woodworking and selling his puzzles as an art or a craft. [4]
Coffin has designed more than 500 original puzzles, most of which are polyhedral. [8] Some have been commercially produced, such as the Hectix. [8] Most of his designs are crafted in wood, some of which use exotic woods such as cocobolo, bubinga and rosewood. [9] In creating his wooden puzzles, Coffin selects beautiful types of wood, cuts and glues the work and then adds his own finish to the piece. [10] Coffin has had no formal training in puzzle making and designs his works intuitively. [2]
Coffin's puzzles have several rules, including that each piece be dissimilar, have different axes of symmetry and only one solution. [9] He has freely shared his designs for reproduction, making his puzzles widely produced and sold internationally. [2]
Coffin has called his work "AP-ART," "the sculptural art that comes apart" and he feels that the "ultimate object in puzzle design is amusement." [1] Curator, Amy Slocum, has highlighted the artistic effort that Coffin puts into his work when she exhibited several pieces at the Katonah Museum of Art. [11] Jerry Slocum, the founder of the International Puzzle Party, has called Coffin's puzzles "beautiful three-dimensional sculptures." [2]
In 2000, Coffin was the winner of the Sam Loyd Award. [12] In 2006, he won the Nob Yoshigahara Award for his lifetime contribution to creating mechanical puzzles. [3]
In 2007, Coffin spoke at the American Association for the Advancement of Science (AAAS) in Boston, where he discussed his puzzle making and demonstrated his puzzles. [2]
He is the author of several books and articles about puzzles, puzzle design and memoirs of his life:
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: CS1 maint: others (link)The Universal Book of Mathematics provides the following information about him:
A leading designer of mechanical puzzles. He is also the author of The Puzzling World of Polyhedral Dissections, one of the most significant works produced on this subject.
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Samuel Loyd, was an American chess player, chess composer, puzzle author, and recreational mathematician. Loyd was born in Philadelphia but raised in New York City.
The tangram is a dissection puzzle consisting of seven flat polygons, called tans, which are put together to form shapes. The objective is to replicate a pattern generally found in a puzzle book using all seven pieces without overlap. Alternatively the tans can be used to create original minimalist designs that are either appreciated for their inherent aesthetic merits or as the basis for challenging others to replicate its outline. It is reputed to have been invented in China sometime around the late 18th century and then carried over to America and Europe by trading ships shortly after. It became very popular in Europe for a time, and then again during World War I. It is one of the most widely recognized dissection puzzles in the world and has been used for various purposes including amusement, art, and education.
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. One of the most well-known mechanical puzzles is the Rubik's Cube, invented by the Hungarian architect Ernő Rubik in 1974. The puzzles are mostly designed for a single player where the goal is for the player to see through the principle of the object, not so much that they accidentally come up with the right solution through trial and error. With this in mind, they are often used as an intelligence test or in problem solving training.
Disentanglement puzzles are a type or group of mechanical puzzle that involves disentangling one piece or set of pieces from another piece or set of pieces. Several subtypes are included under this category, the names of which are sometimes used synonymously for the group: wire puzzles; nail puzzles; ring-and-string puzzles; et al. Although the initial object is disentanglement, the reverse problem of reassembling the puzzle can be as hard as—or even harder than—disentanglement. There are several different kinds of disentanglement puzzles, though a single puzzle may incorporate several of these features.
A burr puzzle is an interlocking puzzle consisting of notched sticks, combined to make one three-dimensional, usually symmetrical unit. These puzzles are traditionally made of wood, but versions made of plastic or metal can also be found. Quality burr puzzles are usually precision-made for easy sliding and accurate fitting of the pieces. In recent years the definition of "burr" is expanding, as puzzle designers use this name for puzzles not necessarily of stick-based pieces.
The 15 puzzle is a sliding puzzle having 15 square tiles numbered 1–15 in a frame that is 4 tiles high and 4 tiles wide, leaving one unoccupied tile position. Tiles in the same row or column of the open position can be moved by sliding them horizontally or vertically, respectively. The goal of the puzzle is to place the tiles in numerical order.
Nobuyuki Yoshigahara was perhaps Japan's most celebrated inventor, collector, solver, and communicator of puzzles.
Jerry Slocum is an American historian, collector and author specializing on the field of mechanical puzzles. He worked as an engineer at Hughes Aircraft prior to retiring and dedicating his life to puzzles.
A dissection puzzle, also called a transformation puzzle or Richter Puzzle, is a tiling puzzle where a set of pieces can be assembled in different ways to produce two or more distinct geometric shapes. The creation of new dissection puzzles is also considered to be a type of dissection puzzle. Puzzles may include various restraints, such as hinged pieces, pieces that can fold, or pieces that can twist. Creators of new dissection puzzles emphasize using a minimum number of pieces, or creating novel situations, such as ensuring that every piece connects to another with a hinge.
A sliding puzzle, sliding block puzzle, or sliding tile puzzle is a combination puzzle that challenges a player to slide pieces along certain routes to establish a certain end-configuration. The pieces to be moved may consist of simple shapes, or they may be imprinted with colours, patterns, sections of a larger picture, numbers, or letters.
Uwe Mèffert was a German puzzle designer and inventor. He manufactured and sold mechanical puzzles in the style of Rubik's Cube since the Cube craze of the 1980s. His first design was the Pyraminx – which he had developed before the original Rubik's cube was invented. He created his own puzzle company and helped bring to market the Megaminx, Skewb, Skewb Diamond and many other puzzles.
The T puzzle is a tiling puzzle consisting of four polygonal shapes which can be put together to form a capital T. The four pieces are usually one isosceles right triangle, two right trapezoids and an irregular shaped pentagon. Despite its apparent simplicity, it is a surprisingly hard puzzle of which the crux is the positioning of the irregular shaped piece. The earliest T puzzles date from around 1900 and were distributed as promotional giveaways. From the 1920s wooden specimen were produced and made available commercially. Most T puzzles come with a leaflet with additional figures to be constructed. Which shapes can be formed depends on the relative proportions of the different pieces.
A combination puzzle, also known as a sequential move puzzle, is a puzzle which consists of a set of pieces which can be manipulated into different combinations by a group of operations. Many such puzzles are mechanical puzzles of polyhedral shape, consisting of multiple layers of pieces along each axis which can rotate independently of each other. Collectively known as twisty puzzles, the archetype of this kind of puzzle is the Rubik's Cube. Each rotating side is usually marked with different colours, intended to be scrambled, then 'solved' by a sequence of moves that sort the facets by colour. As a generalisation, combination puzzles also include mathematically defined examples that have not been, or are impossible to, physically construct.
The Yoshimoto Cube is a polyhedral mechanical puzzle toy invented in 1971 by Naoki Yoshimoto, who discovered that two stellated rhombic dodecahedra could be pieced together into a cube when he was finding different ways he could split a cube equally in half. Yoshimoto first introduced his cube in 1972 at a solo exhibition entitled "From Cube to Space", and later developed three commercial versions. In 1982, Yoshimoto Cube No. 1 was included in the Museum of Modern Art's permanent collection.
Panagiotis Verdes is a Greek inventor and is known for being the first person to mass produce 6x6x6 puzzles and 7x7x7 twisty puzzles. He is also known for founding the company V-Cube. He has also worked on new designs of every Twisty Puzzle from 2x2x2 to 11x11x11.
IRONCAD is a software product for 3D and 2D CAD (computer-aided-design) design focused mainly on the mechanical design market that runs on Microsoft Windows. It is developed by Atlanta, GA based IronCAD LLC.
Willie Young is a 20th-century American artist. Young is mainly self-taught, and his work has been exhibited alongside other prominent outsider artists, such as Bill Traylor, Nellie Mae Rowe and Thornton Dial. The main body of his work consists of delicately rendered graphite drawings.
Commodore Laurence Phillip Brokenshire CBE (1952–2017), known as Laurie Brokenshire, was a Royal Naval officer, magician, and world-class puzzle solver. He is also known to have successfully fostered over 70 children in 22 years.
Hexastix is a symmetric arrangement of non-intersecting prisms, that when extended infinitely, fill exactly 3/4 of space. The prisms in a hexastix arrangement are all parallel to 4 directions on the body-centered cubic lattice. In The Symmetries of Things, John Horton Conway, Heidi Burgiel, and Chaim Goodman-Strauss named this structure hexastix.