Friday, 15 June 2012

Sudoku Puzzle

Sudoku Puzzle is a logic based number placement puzzle. We all have tried this puzzle at one point in life or other. Its fun and its takes you to apply your brains to solve them. The whole logic behind a Sudoku is to fill a 9*9 grid with digits in such a manner that each row, column and each of the 3*3 sub grids which compose the grid, contain all the digits from 1 to 9.
The Sudoku number puzzle first appeared in news papers in the 19th century but it wasn’t Sudoku as it contained double digit numbers and required arithmetic rather than logical to solve the puzzle. In July 1865, Le Siecl’s rival La France simplified the 9*9 magic square puzzle so that each row, column and the broken diagonals contained numbers 1 to 9. According to Will Shortz, the modern Sudoku was designed by 74 years old retired architect and freelance puzzle constructor, Howard Garns.
Sudoku meaning single number was made popular by a Japanese puzzle company Nikoli in 1986. At first it was named as “Suuji wa dokushin ni kagiru” which means digits must be single. Later on the name was abbreviated to Sudoku by Maki Kaji. A completed Sudoku puzzle always looks like a type of Latin square. It became huge International hit in 1995. BBC launched SUDO-Q a game show, Sudoku software is also very popular on websites, PCs and mobile phones. Today there are various Sudoku based videogames available like, Train your brain in minutes a day and Brain Age.
Sudoku Puzzle has grown in popularity over the years and is considered a power game and is liked equally by old and the young.