Lexy And Kaylee's Advanced Sudoku For Adults And Teens Volume Two
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From the creators of Lexy and Kaylee's Canine Coloring Book for Children series now have put together an activity book for Adults and Teens. Inside there are 52 advanced 16x16 Sudoku Puzzles in an easy to carry 6 x 9 format. Great for taking with you on plane and train rides or to sit at the beach or by the pool. Sudoku, a number puzzle that has become a global phenomenon, has a history that can be traced back to several roots. Early Beginnings: The concept of Sudoku is often linked to the 18th-century Swiss mathematician Leonhard Euler. He developed a puzzle known as "Latin Squares," where ea...
From the creators of Lexy and Kaylee's Canine Coloring Book for Children series now have put together an activity book for Adults and Teens. Inside there are 52 advanced 16x16 Sudoku Puzzles in an easy to carry 6 x 9 format. Great for taking with you on plane and train rides or to sit at the beach or by the pool. Sudoku, a number puzzle that has become a global phenomenon, has a history that can be traced back to several roots. Early Beginnings: The concept of Sudoku is often linked to the 18th-century Swiss mathematician Leonhard Euler. He developed a puzzle known as "Latin Squares," where each number or symbol appeared once in each row and column. However, these Latin Squares did not have the additional constraint of Sudoku's sub-grids. 20th Century Developments: In the late 19th century, puzzles resembling Sudoku started appearing in French newspapers. These puzzles, created by Howard Garns, an American architect and freelance puzzle constructor, are often considered the precursors to modern Sudoku. Garns' puzzles were first published in 1979 in Dell Magazines under the name "Number Place." Modern Sudoku: The modern version of Sudoku as we know it was popularized in Japan. In 1984, the puzzle was introduced by the Japanese puzzle company Nikoli, which named it "Sudoku," a short form of a Japanese phrase meaning "the digits must remain single." Nikoli made a few important modifications, including the introduction of symmetrical grids and the reduction of clues, which increased the puzzle's complexity and appeal. Global Popularity: Sudoku's global popularity surged in the early 2000s. Wayne Gould, a retired Hong Kong judge, discovered the puzzle in a Japanese bookstore and developed a computer program to generate Sudoku puzzles. He persuaded major newspapers like The Times in the UK to publish these puzzles, starting in 2004. This sparked a worldwide Sudoku craze, with the puzzle appearing in newspapers, books, and online platforms across the globe. Present Day: Today, Sudoku remains a beloved pastime for millions. It has various forms and difficulty levels and is featured in international competitions. It has inspired numerous spin-offs and variations, cementing its place as a staple of modern puzzle games.
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