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Sudoku

Games > Puzzles > Brain Teasers > Sudoku

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Browser Based (29)
Chats and Forums (3)
Software (18)
Variants (7)

Web Pages

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9x9, 6x6 and Samurai Sudoku - http://www.sudoku.4thewww.com
Offers classic Sudoku and variants, as well as an online solver.

BBC News: The puzzling popularity of Su Doku - http://news.bbc.co.uk/1/hi/magazine/4469719.stm
Article by Paula Dear. Covers history in Japan and the UK and compares to the Rubik's cube craze of the 80s.

Christiaan Olie - http://familieolie.filternet.nl/sudokuenglish.html
Personal page describing Sudoku, rules, strategies, and offering puzzles to print. [Dutch/English]

Daily Sudoku - http://www.daily-sudoku.com/
Offers a different printable puzzle each day. Also includes solutions and FAQ.

Daily SuDoku - http://www.dailysudoku.co.uk/
Offers daily printable puzzles of varying difficulties, including Sudoku for Kids. Also offers archive of past puzzles, tool for rendering custom puzzles, FAQ, and books for purchase.

Dan Rice's Sudoku Blog - http://sudokublog.typepad.com/sudokublog/
Weblog discussing techniques for creating and solving puzzles, including hard puzzles. Also offers a daily puzzle.

Free Sudoku Puzzles - http://www.freesudokupuzzles.org
Offers a free javascript version of the sudoku game.

Gaby Vanhegan - http://vanhegan.net/sudoku/
Daily and random puzzles at six difficulty levels, Flash and JavaScript solvers, solving techniques and glossary of terms.

Grant Gibson - http://www.grantgibson.co.uk/sudoku/
Offers syndicated puzzles for websites as well as print publications.

Hirofumi Fujiwara's Sudoku - http://www.pro.or.jp/~fuji/index-eng.html
Offers a tutorial for creating puzzles, a Java-based solver, and links to other resources. [English/Japanese]

http://sudoku.cc/ - http://sudoku.cc/
Free daily puzzle with solution. Includes archive of past puzzles.

http://www.skyone.co.uk/programme/pgefeature.aspx?pid=48&fid=129 - http://www.skyone.co.uk/programme/pgefeature.aspx?pid=48&fid=129
Information on UK-based cellular provider's world-record largest Sudoku puzzle and accompanying contest.

http://www.sudoku.li/english/ - http://www.sudoku.li/english/
History, instructions, variants and puzzles in four difficulty levels (PDF format). [German/French/English/Spanish/Italian]

http://www.sudokutoday.com - http://www.sudokutoday.com
Provides sudoku puzzles in easy, medium and hard levels with their solutions. Also provides facility for daily email sudoku newsletter.

http://www.sudoweb.com - http://www.sudoweb.com
Free daily puzzles with five difficulty levels. Also offers printable e-book.

Information For Beginners - http://www.forbeginners.info/sudoku-puzzles/
Collection of printable grids, ordered by difficulty level. Solutions provided. Includes rules and solving methods.

Knight Features - http://www.knightfeatures.com/KFWeb/content/features/kffeatures/puzzlesandcrosswords/KF/Sudoku/Sudoku_Classic/sudoku_classic.html
Publishing syndicate in the UK and Ireland. Offers several variations, including classic, colour, kids, and Sudoku Word.

Maths Is Fun - http://www.mathsisfun.net/puzzles.htm
Offers a number of applications and solvers for a variety of platforms. Also offers custom puzzles.

Minimum Sudoku - http://www.csse.uwa.edu.au/~gordon/sudokumin.php
A project collecting Sudoku with the smallest number of givens that are still uniquely solvable. Offers the puzzle for download in text format.

My Days Are Numbered - http://www.slate.com/id/2119796
An article by Seth Stevenson offering a brief overview of Sudoku.

pi-c-it Sudoku - http://www.pi-c-it.de/Sudoku/index.php?lang=en
Generates and solves classic and X-Sudoku problems. Diverse options and an integrated help facility.

Play Sudoku - http://www.play-sudoku.com
Flash version of the Sudoku game. Also offers solution.

Prize Sudoku - http://prizesudoku.com/
Offers competitions for prizes. Traditional Sudoku, Godoku (letters) and Super Sudoku (16x16).

Puzzle Bus - http://www.puzzlebus.com
Offers a daily puzzle, books, software, and related merchandise. Also offers puzzles for syndication.

Scanraid LTD Search Technologies - http://www.scanraid.com/sudoku.htm
Sudoku Solver by Andrew Stuart. Shows the logic behind solving sample games square by square.

Simple Sudoku Solver - http://homepage.ntlworld.com/valleyway/solver.html
JavaScript brute force solver.

Solve My Sudoku - http://www.solvemysudoku.com/
Solves puzzles based on inputted information.

Solving Sudoku - http://angusj.com/sudoku/hints.php
Step by step guide to solving sudoku puzzles. Goes from basic to advanced techniques.

Sudoku Addict - http://www.sudokuaddict.com/
Offers printable grids and solution walkthroughs.

Sudoku enumeration - http://www.shef.ac.uk/~pm1afj/sudoku/
Several programs in different languages for analyzing possible Sudoku combinations.

Sudoku Madness - http://www.sudokumadness.net/syndication/weekly.rss
Seven days of daily puzzles.

Sudoku Online - http://www.sudoku.org.uk/
Includes Sudoku tips and strategies as well as a downloadable game and a 3D Sudoku puzzle.

Sudoku Online Solver - http://sudoku.friko.net/
Free online generator, solver, and helper. [English/French/Spanish/Polish]

Sudoku Place - http://sudokuplace.com/
Offers daily puzzle in PDF format. Includes archive, FAQ, and a "dozen" variant.

Sudoku Puzzles - http://www.sudoku-puzzles.net/
Offers four difficulty levels. The puzzles can be solved online or downloaded as a PDF file. [English/German/French/Spanish/Dutch/Portuguese/Italian]

Sudoku Puzzles - http://www.sudokupuzz.com
Free daily puzzles with five difficulty levels with their solutions. Also offers guide to solve Sudoku puzzles.

SuDoKu-Cracker - http://www.the24net.com/sudoku/
Only creates puzzles with a "unique solution". The built-in generator has six different levels of difficulty and can generate many (millions) different puzzles. All puzzles can be printed, exported, saved and opened again.

Sudoku-san - http://www.sudokusan.com/
Free daily puzzles with four difficulty levels. Also offers a solving assistant and downloadable e-book collections for purchase.

Sudoku.com - http://www.sudoku.com/
Includes an overview of how Sudoku is solved, a monthly contest and a downloadable Sudoku game. Also includes a kids section and discussion forums.

SuDokuMate - http://www.sudokumate.com/sudokumate.asp
SuDokuMate is a SuDoku Helper (not a Solver) that replaces pencil and paper to aid solving.

SudokusWeb.com - http://www.sudokusweb.com/
Free daily printable Sudokus. Also offers history, rules, and solving techniques. [English/Spanish/French/Catalan/German/Portuguese]

The Daily Sudoku - http://www.dailysudoku.co.uk/sudoku/rss.xml
Today's daily Sudoku puzzle from www.dailysudoku.co.uk.

The Economist: Do you sudoku? - http://www.economist.com/displaystory.cfm?story_id=3992476
Article on the puzzle's popularity in the United Kingdom and elsewhere.

The Guardian: So you thought Sudoku came from the Land of the Rising Sun... - http://www.guardian.co.uk/media/2005/may/15/pressandpublishing.usnews
Article by David Smith covering the puzzle's origins as "Number Place" by Dell Puzzle Magazine in New York in the 1970s.

The Guardian: Sudoku fever grips UK newspaper readers - http://www.guardian.co.uk/media/2005/may/10/pressandpublishing.uknews
By Stephen Brook. Article covers how the UK craze got started.

The Heebie Su Doku Site - http://sudoku.toplisted.net/syndicate/feed.php?syndtype=top&syndid=1648
Offers a glossary of terms, links to puzzles and variants, and tips for solving.

The Times Sudoku - http://entertainment.timesonline.co.uk/tol/arts_and_entertainment/games_and_puzzles/sudoku/
Daily sudoku and killer sudoku puzzles from The Times newspaper, London.

Universal Press Syndicate - http://www.amuniversal.com/ups/features/sudoku/
Offers monochrome and color grids and variations for online and print syndication. Information on syndication as well as an interview with creator David Bodycombe.

Vegard Hanssen's page - http://www.menneske.no/sudoku/eng/
Offers a database of crafted puzzles, organized by difficulty. Also offers FAQ and forum. [Norwegian/English]

Wikipedia: Sudoku - http://en.wikipedia.org/wiki/Sudoku
An encyclopedia entry describing the rules, history, strategies and variants of Sudoku. Notes that these are a type of "Latin square" which have been analyzed since ancient times.

World Sudoku Championship - http://www.wsc2006.com/
Information on the 2006 World Sudoku Championship held in Italy. Includes background information, events, results and FAQ. [English, Italian]

Yosmany.net - http://sudoku.yosmany.net
Offers HTML to add a JavaScript-based puzzle to any site. [English/Spanish]

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