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Crosskit.com
Offers printable crossword and sudoku puzzles. Puzzles are offered daily and weekly with an archive. Also offers a crossword dictionary, daily horoscope, and discussion forums.
http://www.crosskit.com
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Sudoku Puzzles
Daily puzzles offered at four difficulty levels, available for play online or printed out. Includes rules and archives.
http://sudoku.com.au/
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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]
http://www.sudoku-puzzles.net/
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Sudoku Fun Puzzles
A website representation of Sudoku, the broad sheet newspaper puzzle imported from Japan. Leaderboard lets players compare completion times.
http://www.sudokufun.com/
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Online Sudoku
Es werden Zufallssudokus in drei Größen generiert. Die Puzzles können online gelöst oder ausgedruckt werden.
http://www.j-berkemeier.de/Sudoku.html
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Sudoku-Lösungen
Enthält einen Solver, Puzzles zum ausdrucken und eine Linksammlung.
http://sudoku.nanosim.net/
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Seferm
Lists news, videos, Sudoku puzzles, and jobs. Covers business, breaking news, science and technology, sports, and world stories.
http://www.seferm.com/
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Kentucky Crosswords on the Web
Free easy crosswords and themed puzzles. Also offers logic problems and Sudoku. Requires Java.
http://www.kentuckycrosswords.com/
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Sudoku-puzzles.net
Propone una raccolta di sudoku risolvibili online o stampati. Sono anche trasportabili come file .pdf.
http://www.sudoku-puzzles.net/
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Sudoku Puzzels
Gratis sudoku puzzels. De raadsels kunnen online worden opgelost, afgedrukt of als PDF-bestand worden geëxporteerd. Beschikbaar in meerdere talen.
http://www.sudoku-puzzles.net/
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Yoogi Puzzle Syndicate
Language independent puzzles like sudoku, kakuro. Free syndication to newspapers.
http://www.syndicate.yoogi.com/
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Sudoku.li
Angaben zur Geschichte, eine Anleitung sowie Angaben zu Varianten des Spiels. Puzzles können in vier Schwierigkeitsgraden als PDF-Datei heruntergeladen werden.
http://www.sudoku.li/
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FreeDailyGames.Net
Offers several varieties of online Sudoku puzzles at four skill levels, plus Hitori puzzles.
http://www.freedailygames.net/
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Sudoku Puzzles
Free daily puzzles with five difficulty levels with their solutions. Also offers guide to solve Sudoku puzzles.
http://www.sudokupuzz.com
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Sudoku Hints
Offers daily web-based puzzles with five difficulty levels. Includes solver, helper, and XML feed.
http://www.sudokuhints.com/
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7star Sudoku
In regelmäßigen Abständen neue, eher schwere Puzzles zum online lösen oder ausdrucken.
http://sudoku.spieleck.de/
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Sudoku Online Solver
Das Programm von Friko.net erstellt und löst zufällige oder vorgegebene Puzzles, druckt sie aus und macht Lösungsvorschläge.
http://sudoku.friko.net/de/