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SUDOKU RULES
Sudoku requires no calculation or arithmetic
skills. It is essentially a game of placing numbers in squares,
using very simple rules of logic and deducation.
The game board consists rows, columns and
9 boxes 3x3. There
is really only one rule in Sudoku:
Fill in the game board so that the numbers from 1
to 9 occur exactly once in each row, column
and 3x3 box. The numbers can appear in any
order and diagonals are not concidered. Your initial game board
will consist of several numbers that are already placed. They
are called the "given" ones and those numbers cannot be changed.
There is only one solution to a properly desined Sudoku Puzzle.
Other Sudoku games
SUDOKU HISTORY
The history of Sudoku starts with the magic square.
Magic Squares are a group of numbers arranged into a square. Within
this square each row, column, and often times diagonal will equal
the same total number, as if by magic. But really, magic squares
have little in common with sudoku puzzles, they can look similar,
but that is all, becouse there`s no arithmetic involved when solving
Sudoku. Later on Magic Squares involved into the Latin Squares.
The Latin Squares, developed in the 18th
century by Swiss mathematician Leonhard Euler, must have the same
set of symbols in each row and each column, and any number can
occur only in each row or column, and this is what it makes it
closer to the modern day Sudoku puzzle.
In the late 1970`s
, Dell Magazines in the US began publishing what we now call Sudoku
puzzles, in its Pencil Puzzles and Word Games magazine. They called
it "Number Place" and it was developed by an independent puzzle
maker Howard Garnes.
Japanese company Nicoli published for the
first time the puzzle in the paper "Monthly Nikolist", and become
a huge hit in the country. This happened in 1984
and the original title was "Suuji wa dokushin ni kagiru" which
can be translated as " the digits must be single" or " the digits
are limited to one occurrence". At a later date, the president
of Nikoli shortened this to "Sudoku". Also, Nicoli were the first
to add two new rules that make Sudoku what is it today, first,
puzzle maker can give no more than 32 clues
in each puzzle, and second, each puzzle must be "symmetrical".
Loadstar/Softdisk published the first home
computer version of Sudoku in 1989 for the Comodore 64. But the
real expansion of the game started with Wayne Gould, retired Hong
Kong judge in 1997. He was on vacation in Tokyo, where he saw
partly completed puzzle in a Japanese bookshop. It intrigued him
and after 6 years he developed a computer program to produce puzzles
quickly. Knowing that British newspapers have a long history of
publishing crosswords and other puzzles, he promoted Sudoku to
The Times in Britain. The Times agreed and published " Su Doku"
on November 12, 2004. Within a few months, other British newspapers
began publishing their own Sudoku puzzles.
The puzzle has crosed the pond back to
the United States from England. It now appears in many major newspapers
across US. It`s popularity is growing daily. There are websites,
online forums, blogs, articles, books, and all sortes of products
dedicated to Sudoku.
And what is more to say, Sudoku will exist as long as
the people stay focused trying to solve the puzzle.
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