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A puzzle in which a grid consisting of several regions is to be filled with numbers so that every row, column, and region contains only one instance of each number. The most common format is a grid of nine rows and columns that are divided into nine smaller regions of three rows and three columns into which the numbers 1 through 9 must be placed.

[Japanese sūdoku, contraction of sū(ji wa) doku(shin ni kagiru), the numbers are limited to a single occurrence (the phrase under which sudokus appeared in a magazine which popularized them in Japan in the 1980s) : sū(ji), number + doku(shin), single.]


(Other Non-sporting Hobbies) a type of puzzle in which numbers must be arranged within a grid containing several internal squares so that no number is repeated in the same row, column, or internal square
[C21: from Japanese su number + doku single]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sudoku - a number puzzle in which the numbers 1 through 9 must be placed into a grid of cells so that each row or column contains only one of each number
mystifier, puzzle, puzzler, teaser - a particularly baffling problem that is said to have a correct solution; "he loved to solve chessmate puzzles"; "that's a real puzzler"
References in periodicals archive ?
SilverBirch's content library has over 80 games and 2500 ringtones and includes Mobiloke, Mobile Poker Trainer, and Su Do Ku.
ca domain to capitalize on the current popularity of the Su Do Ku puzzle game.
SilverBirch's application portfolio is comprised of both original and licensed intellectual properties and includes Mobiloke, Mobile Poker Trainer, Su Do Ku, Animal Snap, Covert Solitaire, El Presidente, Free Cell Block, and others.