Online Calcudoku Puzzles
Create an account
to keep track of the puzzles you've solved. Score points for every solved puzzle, and climb the high score tables!
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(minimum 3 characters, letters and/or numbers only)
(never shown, needed for account validation, confirmation of solved puzzles, and in case you forget your password)
(sent once or twice a year, with extra special puzzles)
(minimum 6 characters, letters and at least one number)
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