This is the latest craze that the world is going mad for. The puzzle that everyone seems to be doing, and now you can solve them all the time. With unlimited puzzles from easy, mild, moderate, difficult, hard, harder and hardest there is a Sudoku for...

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Sudoku is a logic-based number placement puzzle . The objective is to fill a 9x9 grid so that each column, each row, and each of the nine 3x3 boxes (also called blocks or regions) contains the digits from 1 to 9, only one time each (that is, exclusively)....

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