The aim of the puzzle is to enter a digit from 1 to 9 in each cell of a 9x9 grid made up of 3x3 sub grids, starting with various digits given in some cells. Each row, column, and subgrid must contain only one instance of each digit. 1.Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9 without repetition. 2. You will be given a random puzzle and there is one and only one solution. 3. The time you consume in solving puzzle will be your score(lowest is best).
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