Tough Puzzles
Free PDF featuring a range of the world's toughest puzzles.
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Kakuro UDAs
A helpful chart of the full list of Unique Digit Answers (invaluable aid to solving Kakuro puzzles)
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Kakuro Introduction
For an interactive demo in genuine Japanese English, click here.

MAGAZINES

Sudoku
The only magazine containing hand-made puzzles from Nikoli, the creators of Sudoku.
Click here.

Tough Puzzles
For those who like a challenge.
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INTERACTIVE PUZZLES

Sudoku
Enjoy the latest INTERACTIVE Sudoku puzzles! Refreshed daily and with various ways to play, you can sit back and relax with an easy puzzle, race the clock in the Time Challenge teasers or compete against others in the Sudoku leagues!
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Logic Problems
Designed to challenge and develop your powers of logical thinking in a fascinating and entertaining way, these puzzles feature inter-related clues.
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