Also found in: Thesaurus, Acronyms, Encyclopedia, Wikipedia.


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 ?
The winners of the sudoku contest will represent the country in the World Sudoku Championship and other international contests in Bangkok and other countries.
The fifth puzzle is not a Sudoku puzzle, but a Latin Square with extra constraints applied to the two main diagonals.
A total of 121 contestants from six countries joined the sudoku competition including 29-year-old Kota Morinishi from Japan, the current and four-time World Sudoku Championship gold medalist, according to ASC organizer Mathematics Trainers Guild-Philippines (MTG).
Here's what I mean: I know what to expect from "Lebroba" (drums, guitar, trumpet), just as I know what to expect from a Sudoku (digits on a grid), but I have no idea how my experience with either will unfold.
A source told the paper: "She loves Sudoku. She keeps the puzzles from newspapers or does them in a Sudoku book and she is very, very fast.
Kaye Janelle Yao, a master's student in Applied Mathematics at Ateneo, beat 75 other contestants in the Sudoku Grandmaster division and won P50,000 and gifts from Sharp Calculators at the national finals of the 13th Philippine Sudoku Super Challenge (PSSC) held on Nov.
Keywords: SUDOKU, Puzzle Solving, Artificial Neural Networks, Image Recognition, Training.
I hope you can find a way to get Sudoku back to its old space and size.
I tried the sudoku but ended up singing XTC's "One, Two, Three, Four, Five Senses Working Overtime."
Still, those who play Sudoku understand a deeper motivation: actually doing science, even in abstraction.
“We love Sudoku, but sometimes staring at numbers for too long can become tedious.
New research has found that unfamiliar stimuli and new mental challenges - like puzzles, crosswords and sudoku - can stimulate neuron growth in a key area of the brain, the Daily Express reported.