The Times Super Fiendish Su Doku Book 1 - 200 Challenging Puzzles from the Times
Challenge yourself at home with word and number puzzles A new title in the Fiendish Su Doku series, concentrating entirely on the more difficult Super Fiendish puzzles. These are previously unpublished quality Su Doku grids from the puzzle providers to The Times, and help to develop you to take on Extreme Su Doku.
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