# A Person Who Cant See Patterns Have Difficult With Math The Nine Squared Enigma That is Sudoku

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## The Nine Squared Enigma That is Sudoku

For millennia, people have been drawn to things that bothered their minds. Riddles, word and number puzzles – if they involved intense thinking they were adored. The 1970s saw the widespread love affair (perhaps a little love-hate) with a simple block containing smaller square blocks that can be rotated in different colors called the “Rubik’s Cube”. This year’s favorite head-scratching, hair-pulling, addictive game is a Japanese creation called Sudoku.

Like the vast majority of great puzzles, Sudoku looks seemingly benign, a simple grid of nine squares, each square containing nine smaller squares (equal to eighty-one small squares in total). The nine large (“mother”) squares are usually considered to belong to one of three puzzle grids known as regions. Each of the eighty-one small squares contains, or will contain when completed, a number between the numbers one and nine.

Even the rules of this game, which came into mainstream life in Japan in 1986, seem relatively simple. To “win” at Sudoku you must fill every region, column and row of the grid, there can be no blank spaces. However, the difficulty begins to take into account when you consider the rule that each of these areas can only contain the number (from one to nine) once. Some of the boxes already contain numbers, these are called “data”, it’s the player’s job to fill in the blanks, following the rule of “one occurrence” for each number in each of the three directions of the puzzle. .

Interestingly, the numbers are only used for convenience, as they have no mathematical relationship to the game itself*. They do not need to add up to any sum or occur in any particular set of patterns. Instead of numbers, the puzzle can contain shapes, colors, symbols, whatever, as long as the same rule can be applied (each appearing only once in each area of ​​the puzzle). Perhaps the appeal of Sudoku lies in the fact that it looks so easy, what’s so difficult about filling in a few squares, right? One try at this game, though, and all seasoned logistics puzzle pros will find themselves a little in over their heads. Which is not to say that the game can’t be completed, on the contrary it is, and after a while Sudoku “pros” are able to complete a puzzle in a matter of minutes. But this requires work, a lot of work, study and devotion to this unique Japanese square.

The world has certainly jumped on the Sudoku bandwagon, its popularity spawning websites (which often include many free puzzles of varying difficulty) and regular Sudoku puzzles in many magazines and newspapers, even Sudoku software ! With a crossword puzzle-like appearance and strategic maneuvers reminiscent of chess, it’s no wonder Sudoku originated in Japan and has taken off as an international obsession.

*Sudoku actually has a mathematical principle behind it known as “complexity theory,” which classifies Sudoku as an “NP-complete (non-deterministic polynomial time) “puzzle (or problem). The “NP” means that a puzzle/problem with this classification is the most difficult problem of its kind to solve.It is a very complex form of mathematics that still does not have a definitive arithmetic solution for each and every sudoku grid.

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