Sudoku - Wikipedia, the free encyclopedia

Sudoku (数独, sūdoku?, Digit-single) i/suːˈdoʊkuː/, originally called Number Place,[1] is a logic-based,[2][3] combinatorial[4] number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3

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