Change Sudoku Digits  
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Sudoku is a mind game and a puzzle that you solve with reasoning and logic. Fill in the grid with digits in such a manner that every row, every column and every 3x3 box accommodates the digits 19, without repeating any.
How to Play? Move Mouse over empty cell. You may mark possible digits by single click. or double click to choose a digit. You may cancel it at later point of time. Computer will assit you to find answers quickly. (use Computer Aid button)
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