Sudoku means “The digit must occur only once”

Sudoku Puzzles is a Placement puzzles or Number Place. Sudoku Puzzles developed by Su Doku in US (United States). The Sudoku Puzzles design is 9 columns and 9 rows

The each column and each row of the 3X3 boxes are present. The target of puzzles is putting the number from 1 to 9 in each column (call) and row (Grid). Arrange the number of Sudoku only one time using one number. Finishing the puzzles requires endurance and logical ability.

1086 Sudoku puzzles are popular in Japan . All over world popularity sudoku puzzles in 2005. Other name of sudoku puzzles is “numbers singly” in Japanese. The use of sudoku puzzles numerals values like convenience, arithmetoid relationship between numbers. Different type shape, present in sudoku puzzle like symbol, latter, shape, color etc. used without rules. Using rules solving the puzzles is vary diffical.

Latin square is a one type of completed sudoku puzzles.A sudoku gaid is a special type of Latin square additional values in any 3X3 block.

In the 19 th century first appeared number puzzles in newspapers. The French puzzle began experimenting with remove from magic squares. In 1892 published completed 9X9 magic box with 3X3 sub box in a Paris-based daily. A Japan introduces the puzzle in April 1984 by Nikoli, in the paper Monthly Nikolist. The Conway Daily Sun is first newspaper to publish a Sudoku puzzle in United States , in 2004. 1 July 2005 broadcast the world first live TV sudoku show on Sky One. The BBC arranges SUDO-Q game show that combines sudoku General knowledge.

Lucca is first world championship in Italy from 10 to 12 March 2006.

Prague is second world championship in czech Republic from March28 to April 1 2007.