The Nine Squared puzzle, Sudoku is

For millennia, people, angered the things that was pulled their heads. Puzzle, word and number puzzles - if they thought had been involved in intense worship. The 1970s saw the widespread love (perhaps for a love-hate relationship) with a simple block with smaller blocks rotate-able square in different colors as a "Rubik's Cube." This year the head scratching, pulling hair and absolutely addictive game of choice is creating a Japanese nameSudoku.

Like the vast majority of large Sudoku puzzle is apparently benign, a simple grid of nine squares, each square of nine smaller squares (equivalent to eighty one small squares in total). The nine large ("mother") squares are generally acknowledged as belonging to one of the three regions of the puzzle. Each of the 81 small squares contains or will contain at the end, a number between the numbers 1-9.

The rules of thisGame - the mainstream of life in Japan jumped in 1986 - seems relatively simple. To "win" at Sudoku you must fill in each region can be left to each column and row of the grid, without spaces. But the difficulty begins to factor nine, if we recognize that the rule says that each of these areas, the number of only (a) once. Some of the posts already contain numbers, they are referred to as "conditions", it is the responsibility of the player in a vacuumRooms, while respecting the rule "an occurrence" for each number in each of three directions of the puzzle.

Interestingly, the numbers are really just for the sake of simplicity of use, because they have no influence on the mathematics of the game itself *. No need to add up to any amount, or enter into a certain set of models. Instead of numbers the puzzle shapes, colors, can contain symbols, which, as long as the same rule (which Each area appears from time toPuzzles) can be applied. Perhaps the appeal of Sudoku is that it seems so simple, it is difficult to fill in a few places, right? But we try in this game, and all but seasoned professionals logistical puzzle will be in a bit 'over their heads. That does not mean that the game can not be completed, on the contrary, it can be, and after a while Sudoku "pros" are able to complete a puzzle in a matter of minutes. But this work requires a lot of work, study and devotionthis unique Japanese square.

The world has certainly jumped on the train jumped Sudoku, its popularity has generated websites (often offer many free puzzles of varying difficulty), and regular Sudoku puzzles in many magazines and newspapers, even Sudoku software! With a similar appearance, like a crossword puzzle and strategic maneuvers reminiscent of chess, it's no wonder that Sudoku from Japan jumped on him, and as an international hitObsession.

* Actually, Sudoku is a mathematical principle behind compared to the "complexity theory", known to Sudoku classified as "NP-complete (nondeterministic polynomial hours) puzzle (or problem). The" NP "means that The problem of a puzzle with this classification is the most difficult problem to solve in his own way. It 's a very complex form of mathematics, not as of yet not a final solution for every Sudoku grid arithmetic.