Sudoku, sometimes written Su Doku, is a logic-based placement puzzle, also known as Number Place in the United States. The aim of the puzzle is to enter a numerical digit from 1 to 9 in each cell of a 9x9 grid, starting with various digits given in some cells (the "givens").
The grid is made up of 3x3 subgrids (called "regions"). Each row, column, and region must contain only one instance of each numeral. Completing the puzzle requires patience and logical ability. Although first published in 1979, Sudoku initially caught on in Japan in 1986 and attained international popularity in 2005.
This is a free version of the popular game Sudoku
Here are some key features of "Zudoku":
· Generate an unlimited number of puzzles for you to play.
· Enter puzzles from newspapers or magazines so that you can play them on your computer.
· Create your own puzzles.
· Help you with solving puzzles, or even solve an entire puzzle for you.
· Print puzzles out to solve on paper.