This article is about the puzzle. For the disease, see Sodoku.
A typical Sudoku puzzle
The solution to the puzzle above
Sudoku (/suːˈdoʊkuː,-ˈdɒk-,sə-/; Japanese: 数独, romanized: sūdoku, lit. 'digit-single'; originally called Number Place)[1] is a logic-based,[2][3] combinatorial[4] number-placement puzzle. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each column, each row, and each of the nine 3 × 3 subgrids that compose the grid (also called "boxes", "blocks", or "regions") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a single solution.
French newspapers featured variations of the Sudoku puzzles in the 19th century, and the puzzle has appeared since 1979 in puzzle books under the name Number Place.[5] However, the modern Sudoku only began to gain widespread popularity in 1986 when it was published by the Japanese puzzle company Nikoli under the name Sudoku, meaning "single number".[6] It first appeared in a U.S. newspaper, and then The Times (London), in 2004, thanks to the efforts of Wayne Gould, who devised a computer program to rapidly produce unique puzzles.
^Grossman, Lev (March 11, 2013). "The Answer Men". Time. New York. Archived from the original on March 1, 2013. Retrieved March 4, 2013.(registration required)
^Arnoldy, Ben. "Sudoku Strategies". The Christian Science Monitor.
^Schaschek, Sarah (March 22, 2006). "Sudoku champ's surprise victory". The Prague Post. Archived from the original on August 13, 2006. Retrieved February 18, 2009.
^Lawler, E. L. (1985). The Traveling Salesman Problem: A Guided Tour of Combinatorial Optimization. Wiley. ISBN 0-471-90413-9. OCLC 567460994.
^Cite error: The named reference Smith was invoked but never defined (see the help page).
^Hayes, Brian (2006). "Unwed Numbers". American Scientist. 94 (1): 12–15. doi:10.1511/2006.57.3475.
Sudoku (/suːˈdoʊkuː, -ˈdɒk-, sə-/; Japanese: 数独, romanized: sūdoku, lit. 'digit-single'; originally called Number Place) is a logic-based, combinatorial...
A standard Sudoku contains 81 cells, in a 9×9 grid, and has 9 boxes, each box being the intersection of the first, middle, or last 3 rows, and the first...
glossary of Sudoku terms and jargon. It is organized thematically, with links to references and example usage provided as ([1]). Sudoku with a 9×9 grid...
Mathematics can be used to study Sudoku puzzles to answer questions such as "How many filled Sudoku grids are there?", "What is the minimal number of clues...
Killer sudoku (also killer su doku, sumdoku, sum doku, sumoku, addoku, or samunamupure) is a puzzle that combines elements of sudoku and kakuro. Despite...
In the mathematics of Sudoku, the Sudoku graph is an undirected graph whose vertices represent the cells of a (blank) Sudoku puzzle and whose edges represent...
The World Sudoku Championship (WSC) is an annual international puzzle competition organised by a member of the World Puzzle Federation. The first event...
three is given by, A common example of a Latin square would be a completed Sudoku puzzle. A Latin square is a combinatorial object (as opposed to an algebraic...
for the Asian Sudoku Championship and World Sudoku Championship. It usually consists of multiple rounds of solving various classic sudoku and its variants...
using Dancing Links. Main articles: Sudoku, Mathematics of Sudoku, Sudoku solving algorithms The problem in Sudoku is to assign numbers (or digits, values...
European and Korean versions of the first two Brain Age titles featured a Sudoku mode. The player can choose between two modes of play – with notification...
The Sudoku Cube or Sudokube is a variation on a Rubik's Cube in which the faces have numbers one to nine on the sides instead of colours. The aim is to...
Web Sudoku is an online sudoku website which was rated as one of the best 50 fun and games website by Time. It was founded by Gideon Greenspan and Rachel...
direction of Unknown Worlds, Zen of Sudoku, a casual puzzle computer game based on the popular logic puzzle Sudoku, was created in November 2006 in order...
popularise sudoku puzzles in the United Kingdom, and thereafter in the United States. He pioneered the global success and popularity of the Sudoku puzzle...
connect the dots, and nonograms Also the logic puzzles published by Nikoli: Sudoku, Slitherlink, Kakuro, Fillomino, Hashiwokakero, Heyawake, Hitori, Light...
Sudoku codes are non-linear forward error correcting codes following rules of sudoku puzzles designed for an erasure channel. Based on this model, the...
conducting national sudoku championships since 2008 to select the Indian team for the world championships. It also aims in organizing various sudoku and puzzle...
Look up paint-by-numbers in Wiktionary, the free dictionary. Paint by number or painting by numbers kits are self-contained painting sets, designed to...
2006 in Japan Vol. 3: SUDOKU, released March 23, 2006 in Japan, later released as Sudoku Gridmaster in North America and Sudoku Master in Europe Vol....
displaying wikidata descriptions as a fallback Sudoku solving algorithms – Algorithms to complete a sudoku See Sudoku solving algorithms. Gurari, Eitan (1999)...
The Asian Sudoku Championship (ASC) is an annual international sudoku competition organised by a member of the World Puzzle Federation (WPF). The first...
The Australian national sudoku team represents Australia in sudoku competition. In 2008 a group of former University of Western Australia Rugby Club players...
applications include optimizing decision trees for better performance, solving sudoku puzzles, hyperparameter optimization, causal inference, etc. In a genetic...
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