Web Sudoku
Web Sudoku - Web sudoku or online sudoku is a
very addictive game played either online or printed out and played
on paper. Web Sudoku and Sudokus are an excellent way to exercise
the mind and keep the brain active solving logic baded
problems
More about Web Sudoku
Web Sudoku - Sudoku
means "single digits. It is a trademark of Nikoli Co.
Ltd. Sudoku derives from the Japanese phrase "Suji wa dokushin ni kagiru,"
meaning "the numbers must be single," or "the
numbers must occur only once." The numerals in Sudoku puzzles
are for convenience; arithmetic relationships between numerals are
irrelevant. Any set of
distinct symbols will do; shapes, or colours may be used without altering
the rules. In fact, ESPN published Sudoku puzzles substituting the
positions on a baseball field for the numbers 1 through 9; and
Viz magazine published a Doctor Who version of the game, using images
of the television series' first nine leading actors in place
of the numerals. Dell Magazines, the originator, has been using
numerals for Number Place in its magazines since first
published it in 1979.
The History of Sudoku before it hit the Web - Web
Sudoku
Web Sudoku -
Number puzzles first appeared in
newspapers in the late 19th century, when French puzzle setters
began experimenting with removing numbers from magic squares. Le
Sicle, a Paris-based daily, published a partially completed 99
magic square with 33 sub-squares in 1892. It was not a Sudoku
because it contained double-digit numbers and required arithmetic
rather than logic to solve, but it shared key characteristics: each
row, column and sub-square added up to the same number.
Web Sudoku -
Within three years Le
Sicle's rival, La France , refined the puzzle so that it
was almost a modern web Sudoku. It simplified the 99 magic
square puzzle so that each row and column contained only the numbers
19, but did not mark the sub-squares. Although they are unmarked,
each 33 sub-square does indeed comprise the numbers 19. However,
the puzzle cannot be considered the first Sudoku, under modern
rules, it has two solutions. The puzzle setter ensured a unique
solution by requiring 19 to appear in both diagonals.These weekly puzzles were a feature
of newspaper titles including L'Echo de Paris for about a
decade but disappeared about the time of the First World
War.
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