SUDOKU

SUDOKU - Fun puzzle game!

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INTRODUCING:

The object of the game is to fill the Sudoku grid with a sequence of single-digit numbers, each of which appears only once in a given row, column, or 3×3 block. At the start, there are a number of pre-populated cells in the grid that act as clues to help the player gradually solve the whole puzzle.

By definition, a valid grid must have one (and only one) solution. We make sure that all our grids have a unique solution. While it is easier to design a grid with multiple solutions (or no solutions at all), that cannot be considered a real puzzle. As in the case of many logic games, there can be only one answer. Therefore, great care should be taken when designing as even a misplaced number will render the puzzle unsolvable.

CHECK IF THE NUMBER APPEARS OR NOT