@davidbaron
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Datos Personales
Nombre: David
Apellidos: Baron
Información biográfica
What is Sudoku?
The so-called Latin squares, explored by the mathematician Leonhard Euler in the 18th century, are considered the prototypes of these most popular puzzles. In its modern form, the puzzle, later called the Japanese word "Sudoku", first appeared in the press in 1979 - it was published by the American magazine Dell Pencil Puzzles and Word Games. The creator of the grid was a jigsaw puzzle for entertainment magazines, former architect Howard Garnes.
The craze for composing and solving puzzle-squares began, oddly enough, in Japan. Such puzzles became incredibly popular after the first numerical "puzzle" Sudoku was published in a Japanese newspaper in April 1984 (in a very rough translation, this name means "a separate number"). Since then, Sudoku online has been printed in major Japanese newspapers and published in separate collections. The British press contributed a lot to the spread of the puzzle. In 2004-2005 Sudoku appeared on the pages of the most famous British newspapers.
Sudoku is a challenge with complex hidden layers. It is based on a 9x9 grid divided into 3x3 subgrids. It is necessary to fill in the whole square with numbers in such a way that both the row and the column contain all the numbers from 1 to 9 without repetitions. Individual numbers appear in the cells as hint keys, the player must enter the rest. But this does not always help out. Riddles have different levels of difficulty depending on the location and the number of clue keys marked on the field. Some contain a single solution, others are innumerable and require sophisticated logical strategies to solve them.
Free Sudoku easy exists not only in printed collections, but also in electronic form. Based on the 9x9 table, many variations of the game were born, with a large number of cells. Well, many young people learned about this number puzzle only thanks to computers and cellular communications - recently there have been mobile versions of Sudoku.
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