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Browser Based 32
Chats and Forums 3
Software 17
Variants 7
| | Sudoku - Puzzle, Video Games, Games 6
 Christiaan OlieChristiaan Olie
 Personal page describing Sudoku, rules, strategies, and offering puzzles to print. [Dutch/English]
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Daily SuDokuDaily SuDoku
 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.
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Daily SudokuDaily Sudoku
 Offers a different printable puzzle each day. Also includes solutions and FAQ.
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Dan Rice's Sudoku BlogDan Rice's Sudoku Blog
 Weblog discussing techniques for creating and solving puzzles, including hard puzzles. Also offers a daily puzzle.
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Flying Frog ConsultancyFlying Frog Consultancy
 This web page describes a 19-line (769-byte) OCaml program that solves Sudoku puzzles.
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Free Sudoku PuzzlesFree Sudoku Puzzles
 Offers a free javascript version of the sudoku game.
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Gaby VanheganGaby Vanhegan
 Daily and random puzzles at six difficulty levels, Flash and JavaScript solvers, solving techniques and glossary of terms.
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Grant GibsonGrant Gibson
 Offers syndicated puzzles for websites as well as print publications.
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The Heebie Su Doku SiteThe Heebie Su Doku Site
 Offers a glossary of terms, links to puzzles and variants, and tips for solving.
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Hirofumi Fujiwara's SudokuHirofumi Fujiwara's Sudoku
 Offers a tutorial for creating puzzles, a Java-based solver, and links to other resources. [English/Japanese]
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Information For BeginnersInformation For Beginners
 Collection of printable grids, ordered by difficulty level. Solutions provided. Includes rules and solving methods.
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Knight FeaturesKnight Features
 Publishing syndicate in the UK and Ireland. Offers several variations, including classic, colour, kids, and Sudoku Word.
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Maths Is FunMaths Is Fun
 Offers a number of applications and solvers for a variety of platforms. Also offers custom puzzles.
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Minimum SudokuMinimum Sudoku
 A project collecting Sudoku with the smallest number of givens that are still uniquely solvable. Offers the puzzle for download in text format.
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Play SudokuPlay Sudoku
 Flash version of the Sudoku game. Also offers solution.
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Prize SudokuPrize Sudoku
 Offers competitions for prizes. Traditional Sudoku, Godoku (letters) and Super Sudoku (16x16).
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Puzzle BusPuzzle Bus
 Offers a daily puzzle, books, software, and related merchandise. Also offers puzzles for syndication.
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Scanraid LTD Search TechnologiesScanraid LTD Search Technologies
 Sudoku Solver by Andrew Stuart. Shows the logic behind solving sample games square by square.
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Simple Sudoku SolverSimple Sudoku Solver
 JavaScript brute force solver.
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Sky OneSky One
 Information on UK-based cellular provider's world-record largest Sudoku puzzle and accompanying contest.
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Solve My SudokuSolve My Sudoku
 Solves puzzles based on inputted information.
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Solving SudokuSolving Sudoku
 Step by step guide to solving sudoku puzzles. Goes from basic to advanced techniques.
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SudokuSudoku
 Provides sudoku puzzles in easy, medium and hard levels with their solutions. Also provides facility for daily email sudoku newsletter.
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SudokuSudoku
 Free daily puzzle with solution. Includes archive of past puzzles.
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SudokuSudoku
 History, instructions, variants and puzzles in four difficulty levels (PDF format). [German/French/English/Spanish/Italian]
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SudokuSudoku
 Generates and solves classic and X-Sudoku Problems. Diverse options and an integrated help facility makes this program best of class.
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Sudoku AddictSudoku Addict
 Offers printable grids and solution walkthroughs.
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Sudoku enumerationSudoku enumeration
 Several programs in different languages for analyzing possible Sudoku combinations.
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Sudoku OnlineSudoku Online
 Includes Sudoku tips and strategies as well as a downloadable game and a 3D Sudoku puzzle.
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Sudoku Online SolverSudoku Online Solver
 Free online generator, solver, and helper. [English/French/Spanish/Polish]
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Sudoku PlaceSudoku Place
 Offers daily puzzle in PDF format. Includes archive, FAQ, and a "dozen" variant.
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Sudoku PuzzlesSudoku Puzzles
 Free daily puzzles with five difficulty levels with their solutions. Also offers guide to solve Sudoku puzzles.
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Sudoku PuzzlesSudoku Puzzles
 Offers four difficulty levels. The puzzles can be solved online or downloaded as a PDF file. [English/German/French/Spanish/Dutch/Portuguese/Italian]
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Sudoku.comSudoku.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.
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SuDoKu-CrackerSuDoKu-Cracker
 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.
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SuDokuMateSuDokuMate
 SuDokuMate is a SuDoku Helper (not a Solver) that replaces pencil and paper to aid solving.
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Sudoku-sanSudoku-san
 Free daily puzzles with four difficulty levels. Also offers a solving assistant and downloadable e-book collections for purchase.
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SudokusWeb.comSudokusWeb.com
 Free daily printable Sudokus. Also offers history, rules, and solving techniques. [English/Spanish/French/Catalan/German/Portuguese]
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SudowebSudoweb
 Free daily puzzles with five difficulty levels. Also offers printable e-book.
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The Times SudokuThe Times Sudoku
 Daily sudoku and killer sudoku puzzles from The Times newspaper, London.
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Universal Press SyndicateUniversal Press Syndicate
 Offers monochrome and color grids and variations for online and print syndication. Information on syndication as well as an interview with creator David Bodycombe.
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Vegard Hanssen's pageVegard Hanssen's page
 Offers a database of crafted puzzles, organized by difficulty. Also offers FAQ and forum. [Norwegian/English]
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Wikipedia: SudokuWikipedia: 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.
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World Sudoku ChampionshipWorld Sudoku Championship
 Information on the 2006 World Sudoku Championship held in Italy. Includes background information, events, results and FAQ. [English, Italian]
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9x9, 6x6 and Samurai Sudoku9x9, 6x6 and Samurai Sudoku
 Offers classic Sudoku and variants, as well as an online solver.
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Yosmany.netYosmany.net
 Offers HTML to add a JavaScript-based puzzle to any site. [English/Spanish]
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My Days Are NumberedMy Days Are Numbered
 An article by Seth Stevenson offering a brief overview of Sudoku. (May 31, 2005)
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The Economist: Do you sudoku?The Economist: Do you sudoku?
 Article on the puzzle's popularity in the United Kingdom and elsewhere. (May 19, 2005)
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The Guardian: So you thought Sudoku came from the Land of the Rising Sun...The Guardian: So you thought Sudoku came from the Land of the Rising Sun...
 Article by David Smith covering the puzzle's origins as "Number Place" by Dell Puzzle Magazine in New York in the 1970s. (May 15, 2005)
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The Guardian: Sudoku fever grips UK newspaper readersThe Guardian: Sudoku fever grips UK newspaper readers
 By Stephen Brook. Article covers how the UK craze got started. (May 10, 2005)
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BBC News: The puzzling popularity of Su DokuBBC News: The puzzling popularity of Su Doku
 Article by Paula Dear. Covers history in Japan and the UK and compares to the Rubik's cube craze of the 80s. (April 22, 2005)
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