See also:

• Games: Video Games: Puzzle: Go Sudoku  (3)

This category in other languages:
	Czech  (13)   Danish  (11)   Dutch  (11)   German  (51)   Italian  (18)   Japanese  (5)   Norwegian  (4)

Christiaan Olie - Personal page describing Sudoku, rules, strategies, and offering puzzles to print. [Dutch/English].

Daily 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..

Daily Sudoku - Offers a different printable puzzle each day. Also includes solutions and FAQ..

Dan Rice's Sudoku Blog - Blog discussing techniques for creating and solving puzzles, including hard puzzles. Also offers a daily puzzle..

Flying Frog Consultancy - This web page describes a 19-line (769-byte) OCaml program that solves Sudoku puzzles..

Fundoku - Randomly generated puzzles at three difficulty levels..

Gaby Vanhegan - Daily and random puzzles at six difficulty levels, Flash and JavaScript solvers, solving techniques and glossary of terms..

Grant Gibson - Offers syndicated puzzles for websites as well as print publications..

The Heebie Su Doku Site - Offers a glossary of terms, links to puzzles and variants, and tips for solving..

Hirofumi Fujiwara's Sudoku - Offers a tutorial for creating puzzles, a Java-based solver, and links to other resources. [English/Japanese].

Information For Beginners - Collection of printable grids, ordered by difficulty level. Solutions provided. Includes rules and solving methods..

Knight Features - Publishing syndicate in the UK and Ireland. Offers several variations, including classic, colour, kids, and Sudoku Word..

Maths Is Fun - Offers a number of applications and solvers for a variety of platforms. Also offers custom puzzles..

Minimum Sudoku - A project collecting Sudoku with the smallest number of givens that are still uniquely solvable. Offers the puzzle for download in text format..

Prize Sudoku - Offers competitions for prizes. Traditional Sudoku, Godoku (letters) and Super Sudoku (16x16)..

Puzzle Bus - Offers a daily puzzle, books, software, and related merchandise. Also offers puzzles for syndication..

Simple Sudoku Solver - JavaScript brute force solver..

Sky One - Information on UK-based cellular provider's world-record largest Sudoku puzzle and accompanying contest..

SolveMySudoku.com - Browser-based puzzle solver..

Solving Sudoku - Step by step guide to solving sudoku puzzles. Goes from basic to advanced techniques..

Sudoku - Free daily puzzle with solution. Includes archive of past puzzles..

Sudoku - Provides sudoku puzzles in easy, medium and hard levels with their solutions. Also provides facility for daily email sudoku newsletter..

Sudoku Addict - Offers printable grids and solution walkthroughs..

Sudoku enumeration - Several programs in different languages for analyzing possible Sudoku combinations..

Sudoku Fun Puzzles - A website representation of Sudoku, the broad sheet newspaper puzzle imported from Japan. Leaderboard lets players compare completion times..

The Sudoku Grandmaster - Self-styled Grandmaster offers tips on life as Sudoku, humorous claims of achievement, and a daily puzzle..

Sudoku Helper - Free online helper application. Shows options for each square, and allows backtrack, restart, or save..

Sudoku Master - Free daily grids that can be printed. Also offers solution and archive..

Sudoku Online - Includes Sudoku tips and strategies as well as a downloadable game and a 3D Sudoku puzzle..

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

Sudoku Place - Offers daily puzzle in PDF format. Includes archive, FAQ, and a "dozen" variant..

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

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..

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

SuDokuMate - SuDokuMate is a SuDoku Helper (not a Solver) that replaces pencil and paper to aid solving..

Sudoku-san - Free daily puzzles with four difficulty levels. Also offers a solving assistant and downloadable e-book collections for purchase..

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

The Times - Articles and puzzles from The Times (London)..

Universal 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..

Vegard Hanssen's page - Offers a database of crafted puzzles, organized by difficulty. Also offers FAQ and forum. [Norwegian/English].

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

9x9, 6x6 and Samurai Sudoku - Offers classic Sudoku and variants, as well as an online solver..

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

My Days Are Numbered - An article by Seth Stevenson offering a brief overview of Sudoku. (May 31, 2005).

The Economist: Do you sudoku? - Article on the puzzle's popularity in the United Kingdom and elsewhere. (May 19, 2005).

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).

The Guardian: Sudoku fever grips UK newspaper readers - By Stephen Brook. Article covers how the UK craze got started. (May 10, 2005).

BBC 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).

The Daily Sudoku - Today's daily Sudoku puzzle from www.dailysudoku.co.uk. [RSS].

Heebie.co.uk - News and puzzles. [RSS].

Sudoku Madness - Seven days of daily puzzles. [RSS].