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Sudoku |
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29 sites in Sudoku |
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Article by David Smith covering the puzzle's origins as "Number Place" by Dell Puzzle Magazine in New York in the 1970s.
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Offers a free javascript version of the sudoku game.
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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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Daily sudoku and killer sudoku puzzles from The Times newspaper, London.
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History, instructions, variants and puzzles in four difficulty levels (PDF format). [German/French/English/Spanish/Italian]
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Flash version of the Sudoku game. Also offers solution.
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Sudoku Solver by Andrew Stuart. Shows the logic behind solving sample games square by square.
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Publishing syndicate in the UK and Ireland. Offers several variations, including classic, colour, kids, and Sudoku Word.
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Offers a glossary of terms, links to puzzles and variants, and tips for solving.
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Provides sudoku puzzles in easy, medium and hard levels with their solutions. Also provides facility for daily email sudoku newsletter.
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Daily and random puzzles at six difficulty levels, Flash and JavaScript solvers, solving techniques and glossary of terms.
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Offers a daily puzzle, books, software, and related merchandise. Also offers puzzles for syndication.
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Offers HTML to add a JavaScript-based puzzle to any site. [English/Spanish]
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Free daily puzzle with solution. Includes archive of past puzzles.
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Offers a different printable puzzle each day. Also includes solutions and FAQ.
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Free online generator, solver, and helper. [English/French/Spanish/Polish]
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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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Offers daily puzzle in PDF format. Includes archive, FAQ, and a "dozen" variant.
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Step by step guide to solving sudoku puzzles. Goes from basic to advanced techniques.
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JavaScript brute force solver.
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Free daily puzzles with four difficulty levels. Also offers a solving assistant and downloadable e-book collections for purchase.
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Offers a database of crafted puzzles, organized by difficulty. Also offers FAQ and forum. [Norwegian/English]
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Offers printable grids and solution walkthroughs.
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Article by Paula Dear. Covers history in Japan and the UK and compares to the Rubik's cube craze of the 80s.
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Information on UK-based cellular provider's world-record largest Sudoku puzzle and accompanying contest.
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Article on the puzzle's popularity in the United Kingdom and elsewhere.
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Offers a number of applications and solvers for a variety of platforms. Also offers custom puzzles.
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Includes Sudoku tips and strategies as well as a downloadable game and a 3D Sudoku puzzle.
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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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