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Taking Sudoku Seriously: The Math Behind the World's Most Popular Pencil Puzzle is a book on the mathematics of Sudoku.It was written by Jason Rosenhouse and Laura Taalman, and published in 2011 by the Oxford University Press.
French newspapers featured similar puzzles in the 19th century, and the modern form of the puzzle first appeared in 1979 puzzle books by Dell Magazines under the name Number Place. [5] However, the puzzle type only began to gain widespread popularity in 1986 when it was published by the Japanese puzzle company Nikoli under the name Sudoku ...
In 1997 he found a sudoku book in a bookstore in Tokyo. Gould then spent 6 years developing a computer program, known as Pappocom Sudoku, that could mass-produce puzzles for the global market. In November 2004 the London Times was convinced to publish the puzzles. [1] His work led to the publication of sudoku puzzles in many UK newspapers. [2]
An uncompleted Hitori puzzle A Hotaru Beam puzzle A Sudoku puzzle. Some of the popular Nikoli puzzles, along with their Japanese names; terms in parentheses are published English titles for the same puzzles. Bag (バッグ, baggu) (Corral) Connect the dots (点つなぎ, ten tsunagi) (dot to dots) Country Road (カントリーロード ...
A puzzle book is a type of activity book which contains a collection of puzzles for the reader to complete. Puzzle books may contain puzzles all of simply one type like (e.g. crosswords, sudoku, or wordsearch) or a mixture of different puzzle types. Puzzle books may be aimed for either adults or children.
A minimal puzzle is a proper puzzle from which no clue can be removed without introducing additional solutions. Solving Sudokus from the viewpoint of a player has been explored in Denis Berthier's book "The Hidden Logic of Sudoku" (2007) [7] which considers strategies such as "hidden xy-chains".
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