. . . . "Sudoku (\u6570\u72EC, s\u016Bdoku, digit-single) /su\u02D0\u02C8do\u028Aku\u02D0/, /-\u02C8d\u0252-/, /s\u0259-/; originally called Number Place, is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9\u00D79 grid with digits so that each column, each row, and each of the nine 3\u00D73 sub-grids that compose the grid (also called \"boxes\", \"blocks\", \"regions\", or \"sub-squares\") contains all of the digits from 1 to 9."@en .