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This is because Sudoku has the additional problem of multiple regions. There are, however, less solution grids for Sudoku, than there are Latin squares. The solution of the Sudoku grid is much like a Latin square. The Sukoku puzzle is eventually solved by assigning an integer, from one to nine, to each of the vertices in a way where the vertices connected by an edge don’t have the same integer assigned to them. This means that two separate vertices are names and are connected by an edge if, and only if the edges match. Each of the vertices can be named with pairs that are ordered and where “x” and “y” are integers anywhere from one to nine. The entirety of the graph is composed of 81 vertices, with one vertex for every cell on the grid. The basic goal of the puzzle is to build, in its standard form of 9 x 9, a coloring grid. Perhaps an easy way of describing the solution of a Sudoku puzzle is to call it a “graph coloring problem”. There are, however, tips that you can use to solve Sudoku as fast as possible. The game tree of this puzzle game is quite large and, when there is only one solution to be found, makes solving it fast an unfeasible plan. Sudoku has what is known as a “game tree”. When you put cells on grids and throw in a few “givens” it takes some determining finite power to solve the puzzle correctly. It is this concept that makes Sudoku so difficult to solve.
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The main basis behind solving Sudoku is called “NP-complete” because it is solved on n2 x n2 grids of n x n cells. ⊲ Customize your own background by picking up an photo from your own album.The Sudoku puzzle is unlike most puzzles in that it is based on mathematical structure and requires some level of logic in order to be solved. ⊲ Compatible with iOS4.3 iPad device, Retina Display for new iPad support. ⊲ In game progress indicator, to show you current progress with a bar interface. ⊲ Smart coloring fields, allows you to see the relation of each fields while tapping on it. ⊲ Keep device from sleeping, your iPhone/iPod no longer sleep while you are thinking in a puzzle. ⊲ Hint, to provide you a easy way to find out current single note field, certainly a little penalty is required -).
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⊲ Smart eraser to let you remove number on the field clearly and easily. ⊲ Auto/manual check for incorrect numbers.
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⊲ Smart note, automatically put the related note on the field, or put all notes for all fields or clear them all with only one tap. ⊲ Pause/Resume which allows you are able to take a short break from the puzzle. ⊲ Statistic, it saves every finished puzzles automatically, that allows you to keep tracking your best played records for each level, you can restart it whenever you want to re-challenge it. ⊲ Load/Save puzzle from/to the application database. ⊲ Facebook/Twitter support, allows you to publish your scores/achievement to Facebook and Twitter. ⊲ Support !!!!!! GAME CENTER !!!!!!!, 5 Leaderboards and 20 achievements. There is no possibility to get twice the same puzzle since they are randomly generated. SudokuMe16x16 is an awesome app game that allows you to play an unlimited amount of sudoku puzzles on your iPad.