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1. |
Bob Hanson's Sudoku Assistant
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JavaScript-based gameboard and solver. Can use cross-hatch scanning and subset elimination.
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2. |
Daily Sudoku Puzzle
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Offers daily timed puzzle and four difficulty levels. [English/Portuguese/Spanish/German/French/Italian]
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Goobix.com
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Offers up to four difficulty levels.
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Jaap Scherphuis' Generator
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Java-based generator offers four levels of difficulty. Includes view of solution.
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5. |
Number Logic
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Offers a new timed game daily, with a validator and four difficulty levels.
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6. |
Paul's Pages
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Offers random, crafted, and non-standard puzzles. Includes hints and import/export tool.
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7. |
Play Sudoku
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Registered users can save unsolved puzzles and high scores are kept at three difficulty levels. Also offers rules and tips for solving. [English/Russian/German]
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8. |
Play Sudoku
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JavaScript-based Sudoku, available for syndication on other sites.
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9. |
Su-Doku.net
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Offers daily puzzle, downloadable games, and instructions.
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10. |
Sudoku
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Japanese puzzle game played by placing numbers in a grid so that each number only appears once in each row, column, and region. Offers three difficulty levels.
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11. |
Sudoku by Froggy
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Generates 2x2, 3x3, and 5x5 puzzles with adjustable level of difficulty.
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12. |
Sudoku Central
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Offers daily puzzle for printing. Also includes archive, online solver, and solving tips.
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13. |
Sudoku Hints
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Offers daily web-based puzzles with five difficulty levels. Includes solver, helper, and XML feed.
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14. |
Sudoku League
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League of online competitors. Scoreboard, rules, FAQ, hall of fame, and instructions. [English/Czech]
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15. |
Sudoku Prime
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Offers three difficulty levels and the ability to play against other players. [Requires Shockwave]
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16. |
Top Notch Su Doku
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Offers several web-based alternatives, including Worduku, code-duku, and Samurai sudoku. Also offers a web-based solver.
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17. |
Asymmetrical Sudoku
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Includes a generator and solver.
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18. |
BrainBashers
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Offers daily puzzle in one of three difficulty levels. Archive of daily puzzles and an assistant.
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19. |
Braingle Sudoku
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Interactive sudoku game with high score tracking. Includes solution strategies.
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20. |
Count to Nine
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Offers five difficulty levels, timer, solution, and printable view.
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21. |
Fiendish Sudoku
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Free daily sudoku puzzles at five difficulty levels. Online solving grid with hints and step-by-step solutions.
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22. |
Free Sudokus
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Offers hints, solution checking and grids in sizes other than 3x3.
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23. |
Puzzles4Free.com
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Free sudoku puzzles daily for you to solve. New puzzles every day.
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24. |
Ridiculopathy - Sudoku Shuffle
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Play with letters or numbers in the grid. Includes high scores, hints and move verification. [Requires Flash]
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25. |
Seeing With C - Sudoku Solver
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A solver program with an article explaining the algorithm used.
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26. |
Sudoku Puzzles
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Daily puzzles offered at four difficulty levels, available for play online or printed out. Includes rules and archives.
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27. |
SudokuDave
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Easy to very difficult puzzles that you can play online or print out.
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28. |
Web Sudoku
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Free puzzles with difficulty levels ranging from easy to evil. Provides print and online syndication.
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