Karl Scherer (born 1952) is a mathematician and a games inventor. 1952 was a leap year starting on Tuesday (link will take you to calendar). ... A mathematician is a person whose area of study and research is mathematics. ... GAMES Magazine is a United States based magazine devoted to games published by GAMES Publications, a division of Kappa Publishing Group. ... An inventor is a person who creates new inventions, typically technical devices such as mechanical, electrical or software devices or methods. ...

Karl Scherer was born in Traben-Trarbach, Germany. He studied mathematics and physics at the University of Kaiserslautern in Germany. He finished these studies with a doctorate (PhD) in mathematics in 1980. Wikibooks Wikiversity has more about this subject: School of Mathematics Wikiquote has a collection of quotations by or about: Mathematics Look up Mathematics in Wiktionary, the free dictionary Wikimedia Commons has more media related to: Mathematics Bogomolny, Alexander: Interactive Mathematics Miscellany and Puzzles. ... The willingness to question previously held truths and search for new answers resulted in a period of major scientific advancements, now known as the Scientific Revolution. ... Map of Germany showing Kaiserslautern Kaiserslautern is a town in the south of the Land Rhineland-Palatinate in Germany. ... Doctor of Philosophy (Ph. ... 1980 is a leap year starting on Tuesday. ...

In 1986 he emigrated to New Zealand. He worked as a software engineer in Germany (for SAP) and New Zealand (for Air New Zealand and AMS). Since 1990 he has fully dedicated his time to personal development as well as to recreational mathematics and the invention of games and puzzles. 1986 is a common year starting on Wednesday of the Gregorian calendar. ... Software engineering (SE) is the profession concerned with specifying, designing, developing and maintaining software applications by applying technologies and practices from computer science, project management, and other fields. ... SAP is the name of the biggest European software company. ... Air New Zealand is a major scheduled passenger airline based in New Zealand. ... 1990 is a common year starting on Monday of the Gregorian calendar. ... Personal development (also known as self-development or personal growth) comprises the development of the self. ... Recreational mathematics includes many mathematical games, and can be extended to cover such areas as logic and other puzzles of deductive reasoning. ... GAMES Magazine is a United States based magazine devoted to games published by GAMES Publications, a division of Kappa Publishing Group. ... A puzzle is a problem or enigma presented as entertainment that is written down, acted out, etc. ...

He has invented a new type of wire-and-string puzzles, each consisting of a closed loop of wire and a closed loop of string. The challenge is to fully separate the string from the wire. Wire-and-string puzzles usually consist of: one piece of string, ribbon or similar, which may form a closed loop or which may have other pieces like balls fixed to its end. ...

He has also created and published about 400 puzzles, games and tools in the form of computer programs based on the Zillions games development environment. All are available for free from his web site or from the Zillions web site. His emphasis is not only on creating interesting and inspiring games, tool and puzzles for all ages, but also on giving the user plenty of opportunities to create his/her own game setups and thus encouraging creativity. Zillions of Games. ... Zillions of Games. ...

Karl is a regular contributor to the Journal of Recreational Mathematics, and has created or solved many mathematical problems. Noteworthy examples include: The Journal of Recreational Mathematics is a peer reviewed journal dedicated to recreational mathematics. ... This article describes some currently unsolved problems in mathematics. ...

• He holds the current record (disputed — see talk page) for the longest sequence of forced moves in chess (being 18 half moves or 9 moves by either side);[1] JRM problem 493, 1976.
• He discovered (disputed — see talk page) a way to dissect an equilateral triangle into three similar polygons such that exactly two pieces have the same size; MAT I News, Vol 7(2).
• In 1979 Scherer proved (disputed — see talk page) that the L-game by Edward de Bono is a draw. The proof was published in the JRM.
• He solved the long outstanding problem asking for the minimal faultfree rectangular packing of the (1 x n) - polysquare. He proved that the 3n x (2n+1) rectangle allows the smallest faultfree packing; JRM, 1980.
• He discovered (disputed — see talk page) that a square can be dissected into half-dominoes (right triangles with sidelengths 1 and 2) of mutually different sizes ⁶.
• On the lighter side, he found (disputed — see talk page) the mathematical correct way how to dry a towel on a line without clothes pegs; JRM Vol 22(1), pp66-67, 1990.

He has written three books on geometrical puzzles and mathematical problems, mainly in the area of tilings. He has also written a German poetry book. The Journal of Recreational Mathematics is a peer reviewed journal dedicated to recreational mathematics. ... For alternate meanings, such as the musical instrument, see triangle (disambiguation). ... Several equivalence relations in mathematics are called similarity. ... 1979 is a common year starting on Monday. ... The L game was invented by Edward De Bono, intended to illustrate lateral thinking. ... Maltese Physician Edward De Bono (born 1933) writes prolifically on the subject of thinking and conducts training in the same field. ... The Journal of Recreational Mathematics is a peer reviewed journal dedicated to recreational mathematics. ... The Journal of Recreational Mathematics is a peer reviewed journal dedicated to recreational mathematics. ... 1980 is a leap year starting on Tuesday. ... The Journal of Recreational Mathematics is a peer reviewed journal dedicated to recreational mathematics. ... A puzzle is a problem or enigma presented as entertainment; that is written down, acted out, etc. ... This article describes some currently unsolved problems in mathematics. ... In geometry, a tiling (also called tessellation, mosaic or dissection) of a given shape S consists of a collection of other shapes which precisely cover S. Often the shape S to be tiled is the Euclidean plane, but other shapes and three-dimensional objects are considered as well. ... Bust of Homer, one of the earliest European poets, in the British Museum Listen to this article · (info) This audio file was created from the revision dated 2005-04-20, and does not reflect subsequent edits to the article. ...

Scherer is a participant of the International Puzzle Party, a loose association of puzzle inventors, sellers and collectors. The International Puzzle Party (commonly known as IPP) is an annual meeting of mechanical puzzle enthusiasts to discuss, share, and trade mechanical puzzles. ...

In 1986 he built (disputed — see talk page) a mechanical Turing machine using metal and plastic construction sets, and some wood. The 1.5-meter-high machine uses the pulling of strings to read, move and write the data (which is represented using ball bearing balls). The machine is now exhibited in the entrance of the Department of Computer Science of the University of Heidelberg, Germany. 1986 is a common year starting on Wednesday of the Gregorian calendar. ... The Turing machine is an abstract machine introduced in 1936 by Alan Turing to give a mathematically precise definition of algorithm or mechanical procedure. As such it is still widely used in theoretical computer science, especially in complexity theory and the theory of computation. ... The Ruprecht Karl University of Heidelberg (German Ruprecht-Karls-Universität Heidelberg; also known as simply University of Heidelberg) was established in the town of Heidelberg in the Rhineland in 1386. ...

In 1999 Scherer invented (disputed — see talk page) a new type of maze, which he called area-mazes or a-mazes for short. Several applications of this new idea can be found amongst his Zillions games. 1999 is a common year starting on Friday of the Common Era, and was designated the International Year of Older Persons by the United Nations. ... A small maze. ... An area maze or a-maze for short is a maze based on shapes with different areas. ... An area maze or a-maze for short is a maze based on shapes with different areas. ... Zillions of Games. ...

Since then Scherer has created and sold many computer graphics (fractals; based on mathematics) using the Fractint freeware software. He also produced a video and DVD from animated fractals with music by Jeff Clarkson. The Mandelbrot set, named after its discoverer, is a famous example of a fractal. ... Fractint is a freeware open source software package that can render and display many kinds of fractals. ... Bottom view of VHS videotape cassette with magnetic tape exposed Videotape is a means of recording television pictures and accompanying sound onto magnetic tape as opposed to movie film. ... DVD is an optical disc storage media format that can be used for storing data, including movies with high video and sound quality. ...

Reference

Video/DVD

1. Karl Scherer : Infinite Relaxation, 2003. Animated fractal computer graphics; music by Jeff Clarkson.

Books

1. Karl Scherer : Wecker im Kopf, 2000. Poetry and philosophy in rhymes; 90% German, 10% English.
2. Karl Scherer : New Mosaics, 1997. The book focusses on alternating tilings and nowhere-neat tilings.
3. Karl Scherer : Nutts And Other Crackers, 1994. The book focusses on new problems of plane geometry.
4. Karl Scherer : A Puzzling Journey to the Reptiles And Related Animals, 1986. Written as a fiction story, this is the only book which investigates deeply into the realm of reptiles, irreptiles and puritiles.

In geometry, a tiling (also called tessellation, mosaic or dissection) of a given shape S consists of a collection of other shapes which precisely cover S. Often the shape S to be tiled is the Euclidean plane, but other shapes and three-dimensional objects are considered as well. ... In geometry, a tiling (also called tessellation, mosaic or dissection) of a given shape S consists of a collection of other shapes which precisely cover S. Often the shape S to be tiled is the Euclidean plane, but other shapes and three-dimensional objects are considered as well. ... In mathematics, Euclidean geometry is the familiar kind of geometry on the plane or in three dimensions. ... In geometry, a tiling (also called tessellation, mosaic or dissection) of a given shape S consists of a collection of other shapes which precisely cover S. Often the shape S to be tiled is the Euclidean plane, but other shapes and three-dimensional objects are considered as well. ... In geometry, a tiling (also called tessellation, mosaic or dissection) of a given shape S consists of a collection of other shapes which precisely cover S. Often the shape S to be tiled is the Euclidean plane, but other shapes and three-dimensional objects are considered as well. ... In geometry, a tiling (also called tessellation, mosaic or dissection) of a given shape S consists of a collection of other shapes which precisely cover S. Often the shape S to be tiled is the Euclidean plane, but other shapes and three-dimensional objects are considered as well. ...

Articles

1. Karl Scherer : A General Theorem On No-Touch Tilings of Squares And A General Theorem On Nowhere-Neat Tilings Of Squares, JRM Vol. 32(1) 1-13, 2003-2004.
2. Karl Scherer : L-game Is A Draw, JRM 1997.
3. Karl Scherer : The impossibility of a tessellation of the plane into equilateral triangles whose sidelengths are mutually different, one of them being minimal, Elemente der Mathematik, 1984.
4. Karl Scherer : Some new types of closure properties of the plane, American Mathematical Monthly, 1982 (?).
5. Karl Scherer : Minimal Faultfree Rectangles Packed With 1xn Polyominoes, JRM, 1980.
6. Karl Scherer : Dissecting a Square Into Similar Triangles, JRM, Vol 28(4), 1996-97, p307.
7. Many smaller articles, problems and solutions published in the JRM.

The Journal of Recreational Mathematics is a peer reviewed journal dedicated to recreational mathematics. ... The L game was invented by Edward De Bono, intended to illustrate lateral thinking. ... The Journal of Recreational Mathematics is a peer reviewed journal dedicated to recreational mathematics. ... The American Mathematical Monthly is a mathematical journal published 10 times each year by the Mathematical Association of America since 1894. ... The Journal of Recreational Mathematics is a peer reviewed journal dedicated to recreational mathematics. ... The Journal of Recreational Mathematics is a peer reviewed journal dedicated to recreational mathematics. ... The Journal of Recreational Mathematics is a peer reviewed journal dedicated to recreational mathematics. ...

See also

• Category: Puzzles
• Category: Puzzle designers
• convex tilings
• mathematical puzzles
• mechanical puzzles
• puzzles
• string puzzles
• tetrads
• tilings
• tiling with squares : page contains several general theorems on tilings by Karl Scherer.
• wire-and-string puzzles

A convex tiling is a tiling of a convex shape. ... Mathematical games include many topics which are a part of recreational mathematics, but can also cover topics such as the mathematics of games, and playing games with mathematics. ... A mechanical puzzle is a puzzle presented a set of mechanically interlinked pieces. ... A puzzle is a problem or enigma presented as entertainment that is written down, acted out, etc. ... A string puzzle is any mechanical puzzle where the emphasis is on manipulating one or more pieces of string or rope. ... This page covers notations and definitions, sometimes called the Cartan formalism, for the Cartan connection concept. ... In geometry, a tiling (also called tessellation, mosaic or dissection) of a given shape S consists of a collection of other shapes which precisely cover S. Often the shape S to be tiled is the Euclidean plane, but other shapes and three-dimensional objects are considered as well. ... A tiling with squares is a tiling which uses only squares as its parts. ... Wire-and-string puzzles usually consist of: one piece of string, ribbon or similar, which may form a closed loop or which may have other pieces like balls fixed to its end. ...

External links

• Official web site